{"id":41154,"date":"2021-02-01T12:41:02","date_gmt":"2021-02-01T11:41:02","guid":{"rendered":"https:\/\/aquajet.se\/jobreport\/hydrodemolition-steigert-produktivitaet-bei-brueckenprojekt-auf-den-philippinen\/"},"modified":"2021-02-01T12:41:02","modified_gmt":"2021-02-01T11:41:02","slug":"hydrodemolition-steigert-produktivitaet-bei-brueckenprojekt-auf-den-philippinen","status":"publish","type":"jobreport","link":"https:\/\/aquajet.se\/de\/jobreport\/hydrodemolition-steigert-produktivitaet-bei-brueckenprojekt-auf-den-philippinen\/","title":{"rendered":"Hydrodemolition steigert Produktivit\u00e4t bei Br\u00fcckenprojekt auf den Philippinen"},"content":{"rendered":"<h2><\/h2>\n<p>&nbsp;<\/p>\n<p><strong>Ganz gleich, um welches Projekt es sich handelt &#8211; von einem einfachen Bauwerk bis hin zu einem massiven, mehrere Millionen Dollar teuren Br\u00fcckensystem &#8211; eine effiziente Konstruktion erfordert eine gr\u00fcndliche Planung. Aber selbst bei einer einwandfreien Logistik k\u00f6nnen Projekte auf Herausforderungen sto\u00dfen, die die Fristen in Gefahr bringen. <\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Auf den Philippinen wird derzeit ein massives Br\u00fcckensystem gebaut, das Cebu City mit Cordova am s\u00fcdlichen Ende der Insel Mactan verbindet. Der 8,5 Kilometer (5,3 Meilen) lange Cebu-Cordova Link Expressway, der 2021 fertiggestellt werden soll, wird den Mactan-Kanal mit einer Durchfahrtsh\u00f6he von 51 Metern (167 Fu\u00df) f\u00fcr Schiffe \u00fcberspannen. Sie verspricht, die Staus zwischen Cebu und Mactan zu verringern und die wirtschaftlichen Aktivit\u00e4ten in der gesamten Region anzukurbeln, indem sie sch\u00e4tzungsweise 50.000 Fahrzeugen pro Tag einen zus\u00e4tzlichen Zugang zur Insel und zum internationalen Flughafen Mactan-Cebu bietet.  <\/p>\n<h5><\/h5>\n<p>Wie nicht anders zu erwarten, ist der Bau &#8211; eines der gr\u00f6\u00dften Infrastrukturprojekte des Landes &#8211; auf einen sorgf\u00e4ltig choreographierten Plan gleichzeitiger Arbeiten angewiesen, um strenge Fristen einzuhalten. Dank einer ausgefeilten Logistik k\u00f6nnen viele H\u00fcrden umgangen werden, aber es k\u00f6nnen auch unvorhergesehene Herausforderungen auftreten. Als eine schlechte Betonmischung die Arbeiten an einem der ersten Pfeiler der Br\u00fccke zu gef\u00e4hrden drohte, brauchten die Projektmanager eine kreative L\u00f6sung, um den minderwertigen Beton schnell zu entfernen, ohne die Bewehrung zu besch\u00e4digen oder den Zeitplan zu gef\u00e4hrden. <a href=\"https:\/\/aquajet.se\/hydrodemolition-101\/crash-course-101\/\">Hydrodemolition<\/a> war das einzige Verfahren mit der n\u00f6tigen Pr\u00e4zision und Produktivit\u00e4t, um das Projekt auf Kurs zu halten.  <\/p>\n<h5><\/h5>\n<p>Cebu Link Joint Venture (CLJV) wandte sich an <a href=\"https:\/\/aquajet.se\/contact-aquajet\/global-dealer-network-2\/aquajet-in-southeast-asia\/\">Asia Waterjet Equipment<\/a> mit Sitz in Singapur, den f\u00fchrenden Experten f\u00fcr Hydrodemolition in der Region. Der Zugang und die Bedingungen vor Ort stellten eine ziemliche Herausforderung dar, aber mit jahrzehntelanger Erfahrung in einigen der gef\u00e4hrlichsten Anwendungen war Asia Waterjet Equipment der Aufgabe mehr als gewachsen. W\u00e4hrend die Uhr tickte und die Monsunzeit in vollem Gange war, kam das Team mit einem Aquajet <a href=\"https:\/\/aquajet.se\/de\/products\/aqua-cutter-710v\/\">Aqua Cutter 710V<\/a> Hydrodemolition-Roboter und einer Jetstream HP Wasserstrahlpumpe vor Ort an.  <\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/aquajet.se\/bed\/uploads\/2021\/02\/aquajet_awe_filippinerna-bridge-repair_1024-3.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-9534\" src=\"https:\/\/aquajet.se\/bed\/uploads\/2021\/02\/aquajet_awe_filippinerna-bridge-repair_1024-3-700x525.jpg\" alt=\"No matter the project \u2014 from a simple structure to a massive, multi-million-dollar bridge system \u2014 efficient construction requires thorough planning. But, even with flawless logistics, projects can run into challenges that put deadlines in jeopardy. Construction is currently underway in the Philippines on a massive bridge system connecting Cebu City with Cordova on the southern end of Mactan Island. The 8.5-kilometer (5.3-mile) Cebu-Cordova Link Expressway, slated for completion in 2021, will span the Mactan Channel with 51-meter (167-feet) navigational clearance for shipping vessels. It promises to ease congestion between Cebu and Mactan and boost economic activities throughout the region by providing additional access to the island and the Mactan-Cebu International Airport for an estimated 50,000 vehicles a day. As expected, the construction \u2014 one of the largest infrastructure projects in the country \u2014 relies on a carefully choreographed plan of simultaneous operations to meet strict deadlines. Expert logistics allow crews to avoid many hurdles; however, unforeseen challenges can still arise. When a bad batch of concrete threatened to derail progress on one of the bridge\u2019s first pilons, project managers needed a creative solution that could quickly remove the poor-quality concrete without damaging the rebar or putting the project behind schedule. Hydrodemolition was the only process with the precision and productivity to keep the project on track. Cebu Link Joint Venture (CLJV) contacted Singapore-based Asia Waterjet Equipment, the region\u2019s premier Hydrodemolition experts. Access and site conditions presented quite a challenge, but with decades of experience in some of the most hazardous applications, Asia Waterjet Equipment was more than up to the task. With the clock ticking and monsoon season in full swing, the team arrived onsite with an Aquajet Aqua Cutter 710V Hydrodemolition robot and Jetstream HP Waterjetting Pump. Passion for Problem Solving In the early 1990s, Asia Waterjet Equipment\u2019s founders were part of the brave crews tasked with containing oil wells in Kuwait that were destroyed during the Persian Gulf War. Their experience helped avert a huge environmental crisis. They remained in the Middle East, eventually founding Asia Waterjet Equipment in 2006, bringing high-pressure water jetting and robotic Hydrodemolition to the Middle East and South East Asia. Now, with offices in Dubai, Abu Dhabi, Saudi Arabia, Bahrain and Singapore and a strong presence and partnerships throughout these territories, the company is known for creative problem solving \u2014 delivering innovative cutting and cleaning solutions for hazardous areas or difficult to pump products in petrochemical, wastewater, mining, construction and other industries. They also offer a range of robotic solutions to help customers protect employees and perform beyond expectations. \u201cOur focus has always been providing the cutting-edge tools to make challenging applications safer and more efficient,\u201d said Chris Parkhill, Asia Waterjet Equipment Sales Director for Southeast Asia. \u201cFrom the very beginning, we\u2019ve been involved in some of the most hazardous operations out there. We understand the demands and dangers, which is why we partner with industry-leading equipment manufacturers for robust solutions that maximize safety and productivity.\u201d Pairing the right tools with experienced team members who bring a wealth of industry knowledge and a deep understanding of local markets to each project has earned Asia Waterjet Equipment a reputation for high-quality results. In emerging markets, such as the Philippines, where the demands of multi-million-dollar projects have become a proving ground for newer, more efficient technologies, this expertise puts the company at the forefront. \u201cFrom North Africa to South East Asia, we cover a lot of ground,\u201d Parkhill said. \u201cBut being able to meet the contractor where they are is key to a successful solution. Working with CLJV, there were a number of challenges we had to overcome to keep the project on track. Hydrodemolition was the best solution and Aquajet was the best tool for the job.\u201d Troubled Water Access was the primary problem. CLJV was conducting construction on several bridge pilons simultaneously. To minimize disruptions to the local community, the project\u2019s primary staging area, as well as the initial pilon, were only accessible from the coast. This meant the concrete had to be mixed 2.5 kilometers (1.6 miles) down the coast then transported by barge to the jobsite. From there, the barge was grounded, and the trucks disembarked directly onto the beach. The pilon was 30 meters (98 feet) inland. Overall, the transportation delay had no negative impacts on the concrete, and the 16-by-14-meter (52.5-by-45.9-foot) pilon quickly grew to 4 meters (13 feet) tall. However, a complication with a single delivery threatened to throw the entire project behind schedule and over budget. \u201cWhen you are working with concrete, sometimes things don\u2019t go to plan,\u201d Parkhill said. \u201cIt\u2019s a delicate equation, after all, and even a slight miscalculation can ruin the mixture. Unfortunately, when that happens, there isn\u2019t an easy fix.\u201d Crews knew there was a problem immediately. The concrete was already setting as they pumped. Vibrating and other correctional methods failed, and the pour was ultimately unsuccessful. Even worse, the concrete fell 350 millimeters (13.8 inches) short, leaving a mesh of exposed rebar. For CLJV and Asia Waterjet Equipment, the challenges were adding up, making for a very difficult repair. The pilon was nearly complete. While CLJV had budgeted time and money for small complications, it could not afford to demolish the whole pilon and start over. Crews with handheld breakers or excavators could remove the poor-quality concrete, but only by destroying the rebar. They would have to cut the exposed rebar at the top of the pilon to access the concrete a foot below. More rebar would be damaged as the poor-quality concrete was removed, and microfractures from the vibration of jackhammers or excavators would weaken the remaining concrete, jeopardizing the pilon\u2019s integrity. \u201cThere was no option; the rebar and existing good concrete had to be protected,\u201d Parkhill said. \u201cIf CLJV went with traditional demolition methods, they\u2019d have to open, pry apart where possible or cut the rebar and manually jack hammer out the bad concrete. There\u2019s no guarantee a man using a jack hammer could gauge what\u2019s good and what\u2019s bad, so they\u2019d end up removing extra. Then they\u2019d have to bend the rebar back into place without breaking it, or weld or cut new threads and join with it threaded couplers. It would add weeks to the project and a significant cost to the budget. They simply couldn\u2019t afford it.\u201d Asia Waterjet Equipment knew Hydrodemolition was the only solution. The non-intrusive method uses high-pressure water jets as powerful as 40,000 psi manipulated by an automated robot to remove layers of deteriorated and damaged concrete. The high-pressure water exceeds the strength of the concrete to widen existing pores and microcracks, breaking it apart in a controlled manner. Unlike other mechanical methods, Hydrodemolition is impact free, eliminating the vibrations that cause microfractures. Additionally, the method meets European Standards EN 1504 and provides a superior bonding surface for new concrete. The Aqua Cutter 710V\u2019s high-pressure water jet leaves a rough, irregular profile after removing the initial layer of concrete that results in a better bonding strength. The robot also cleans and descales the exposed rebar and removes non-visible contaminants such as dirt, mud, foundation mud, salts, chlorides and sulfates. Building Bridges Productivity was also a concern. With simultaneous construction continuing on several other pilons in the area, crews needed to remove the poor-quality concrete and complete repairs quickly \u2014 with minimal labor. With the ability to complete concrete removal tasks up to 25 times faster than a hand lance, the Aqua Cutter provided the necessary solution to keep the project on schedule. Asia Waterjet Equipment brought in Aquajet Special Application Manager Kjell Isaksson to support the operation. \u201cThere were a lot of variables and no room for error,\u201d Parkhill said. \u201cTo minimize the risk of delays, we decided it would be best to have an Aquajet specialist on site.\u201d Like the cement trucks, the Aqua Cutter and all support equipment, including a high-pressure waterjet power pack with a 4200 series Jetstream pump, had to access the site from the Mactan Chanel. Proximity to the water and the frequent, heavy rains of monsoon season made ground conditions difficult. However, since the Aqua Cutter is self-propelled with tracks, the uneven, muddy terrain presented no problems for Asia Waterjet Equipment. This minimized necessary site preparations and helped accelerate repairs. Crossing the Bridge to Success This mobility was also necessary for tackling the demolition itself. Once lifted the 4 meters (13 feet) onto the pile cap by a crane, the Aqua Cutter was able to easily maneuver over the rebar. The high-pressure pump was setup 7 meters (23 feet) away and connected to the Hydrodemolition robot by a high-pressure hose. To help reduce cost and increase production, Asia Waterjet Equipment opted to use seawater for the majority of the demolition rather than bring in fresh water. The company continually filled two 20-cubic meter (5,283 gallon) night tanks directly from the Mactan Chanel. Fresh water was only used during the last two days of the project to remove salt and other impurities that could impact bonding. Using the Hydrodemolition robot, operating at 1,000 bar (15,000 psi), and two employees, Asia Waterjet Equipment removed 10 cubic meters (13 cubic yards) of poor-quality concrete at a depth of 150-250 millimeters (6-10 inches) in days. \u201cWith the Aquajet Aqua Cutter, we increased productivity to a point where construction was back on schedule,\u201d Parkhill said. \u201cWithout Hydrodemolition, there\u2019s no way CLJV would have been able to do that.\u201d The Future of Hydrodemolition While construction on the bridge system continues, Asia Waterjet Equipment is already on to the next challenge. \u201cConstruction in Southeast Asia is changing,\u201d Parkhill said. \u201cRobotic processes like Hydrodemolition are proving you can have productivity and safety. With innovative partners like Aquajet, Asia Waterjet Equipment is playing a leading role in facilitating that change.\u201d\" width=\"700\" height=\"525\"><\/a><\/p>\n<p><em>Als eine schlechte Betonmischung den Fortschritt eines gro\u00dfen Br\u00fcckenprojekts auf den Philippinen zu gef\u00e4hrden drohte, wandte sich Asia Waterjet Equipment an Aquajet, um eine kreative L\u00f6sung zu finden, mit der der minderwertige Beton schnell entfernt werden konnte, ohne die Bewehrung zu besch\u00e4digen oder das Projekt in Verzug zu bringen<\/em><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Leidenschaft f\u00fcr das L\u00f6sen von Problemen<\/strong><\/p>\n<p>In den fr\u00fchen 1990er Jahren geh\u00f6rten die Gr\u00fcnder von Asia Waterjet Equipment zu den tapferen Mannschaften, die die Aufgabe hatten, die w\u00e4hrend des Golfkriegs zerst\u00f6rten \u00d6lquellen in Kuwait einzud\u00e4mmen. Ihre Erfahrung half, eine gro\u00dfe Umweltkrise abzuwenden. Sie blieben im Nahen Osten und gr\u00fcndeten schlie\u00dflich 2006 Asia Waterjet Equipment, das Hochdruckwasserstrahlen und robotergest\u00fctzte Hydrodemolition in den <a href=\"https:\/\/aquajet.se\/contact-aquajet\/global-dealer-network-2\/aquajet-in-the-middle-east\/\">Nahen Osten<\/a> und <a href=\"https:\/\/aquajet.se\/contact-aquajet\/global-dealer-network-2\/aquajet-in-southeast-asia\/\">nach S\u00fcdostasien<\/a> brachte.  <\/p>\n<h5><\/h5>\n<p>Mit Niederlassungen in <a href=\"https:\/\/aquajet.se\/contact-aquajet\/global-dealer-network-2\/aquajet-in-the-middle-east\/\">Dubai, Abu Dhabi, Saudi-Arabien, Bahrain<\/a> und <a href=\"https:\/\/aquajet.se\/contact-aquajet\/global-dealer-network-2\/aquajet-in-southeast-asia\/\">Singapur<\/a> und einer starken Pr\u00e4senz und Partnerschaften in diesen Gebieten ist das Unternehmen f\u00fcr kreative Probleml\u00f6sungen bekannt. Es liefert innovative Schneid- und Reinigungsl\u00f6sungen f\u00fcr gef\u00e4hrliche Bereiche oder schwer zu pumpende Produkte in der Petrochemie, im Abwasserbereich, im Bergbau, im Bauwesen und in anderen Branchen. Das Unternehmen bietet auch eine Reihe von Roboterl\u00f6sungen an, die den Kunden helfen, ihre Mitarbeiter zu sch\u00fctzen und die Erwartungen zu \u00fcbertreffen. <\/p>\n<h5><\/h5>\n<p>&#8220;Wir haben uns schon immer darauf konzentriert, hochmoderne Werkzeuge anzubieten, um anspruchsvolle Anwendungen sicherer und effizienter zu machen&#8221;, sagt Chris Parkhill, Asia Waterjet Equipment Sales Director f\u00fcr S\u00fcdostasien. &#8220;Von Anfang an waren wir an einigen der gef\u00e4hrlichsten Arbeiten beteiligt. Wir kennen die Anforderungen und Gefahren. Deshalb arbeiten wir mit branchenf\u00fchrenden Anlagenherstellern zusammen, um robuste L\u00f6sungen zu entwickeln, die die Sicherheit und Produktivit\u00e4t maximieren.&#8221; <\/p>\n<h5><\/h5>\n<p>Durch die Kombination der richtigen Werkzeuge mit erfahrenen Teammitgliedern, die eine F\u00fclle von Branchenkenntnissen und ein tiefes Verst\u00e4ndnis der lokalen M\u00e4rkte in jedes Projekt einbringen, hat sich Asia Waterjet Equipment einen Ruf f\u00fcr hochwertige Ergebnisse erworben. In aufstrebenden M\u00e4rkten wie den Philippinen, wo die Anforderungen millionenschwerer Projekte zu einem Testfeld f\u00fcr neuere, effizientere Technologien geworden sind, verschafft dieses Know-how dem Unternehmen eine Vorreiterrolle. <\/p>\n<h5><\/h5>\n<p>&#8220;Von Nordafrika bis S\u00fcdostasien decken wir ein weites Gebiet ab&#8221;, sagte Parkhill. &#8220;Aber der Schl\u00fcssel zu einer erfolgreichen L\u00f6sung ist die F\u00e4higkeit, den Auftragnehmer dort zu treffen, wo er sich befindet. Bei der Zusammenarbeit mit CLJV mussten wir eine Reihe von Herausforderungen meistern, um das Projekt auf Kurs zu halten. Hydrodemolition war die beste L\u00f6sung und Aquajet war das beste Werkzeug f\u00fcr diese Aufgabe. <\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/aquajet.se\/bed\/uploads\/2021\/02\/aquajet_awe_filippinerna-bridge-repair_1024-2.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-9533\" src=\"https:\/\/aquajet.se\/bed\/uploads\/2021\/02\/aquajet_awe_filippinerna-bridge-repair_1024-2-700x525.jpg\" alt=\"No matter the project \u2014 from a simple structure to a massive, multi-million-dollar bridge system \u2014 efficient construction requires thorough planning. But, even with flawless logistics, projects can run into challenges that put deadlines in jeopardy. Construction is currently underway in the Philippines on a massive bridge system connecting Cebu City with Cordova on the southern end of Mactan Island. The 8.5-kilometer (5.3-mile) Cebu-Cordova Link Expressway, slated for completion in 2021, will span the Mactan Channel with 51-meter (167-feet) navigational clearance for shipping vessels. It promises to ease congestion between Cebu and Mactan and boost economic activities throughout the region by providing additional access to the island and the Mactan-Cebu International Airport for an estimated 50,000 vehicles a day. As expected, the construction \u2014 one of the largest infrastructure projects in the country \u2014 relies on a carefully choreographed plan of simultaneous operations to meet strict deadlines. Expert logistics allow crews to avoid many hurdles; however, unforeseen challenges can still arise. When a bad batch of concrete threatened to derail progress on one of the bridge\u2019s first pilons, project managers needed a creative solution that could quickly remove the poor-quality concrete without damaging the rebar or putting the project behind schedule. Hydrodemolition was the only process with the precision and productivity to keep the project on track. Cebu Link Joint Venture (CLJV) contacted Singapore-based Asia Waterjet Equipment, the region\u2019s premier Hydrodemolition experts. Access and site conditions presented quite a challenge, but with decades of experience in some of the most hazardous applications, Asia Waterjet Equipment was more than up to the task. With the clock ticking and monsoon season in full swing, the team arrived onsite with an Aquajet Aqua Cutter 710V Hydrodemolition robot and Jetstream HP Waterjetting Pump. Passion for Problem Solving In the early 1990s, Asia Waterjet Equipment\u2019s founders were part of the brave crews tasked with containing oil wells in Kuwait that were destroyed during the Persian Gulf War. Their experience helped avert a huge environmental crisis. They remained in the Middle East, eventually founding Asia Waterjet Equipment in 2006, bringing high-pressure water jetting and robotic Hydrodemolition to the Middle East and South East Asia. Now, with offices in Dubai, Abu Dhabi, Saudi Arabia, Bahrain and Singapore and a strong presence and partnerships throughout these territories, the company is known for creative problem solving \u2014 delivering innovative cutting and cleaning solutions for hazardous areas or difficult to pump products in petrochemical, wastewater, mining, construction and other industries. They also offer a range of robotic solutions to help customers protect employees and perform beyond expectations. \u201cOur focus has always been providing the cutting-edge tools to make challenging applications safer and more efficient,\u201d said Chris Parkhill, Asia Waterjet Equipment Sales Director for Southeast Asia. \u201cFrom the very beginning, we\u2019ve been involved in some of the most hazardous operations out there. We understand the demands and dangers, which is why we partner with industry-leading equipment manufacturers for robust solutions that maximize safety and productivity.\u201d Pairing the right tools with experienced team members who bring a wealth of industry knowledge and a deep understanding of local markets to each project has earned Asia Waterjet Equipment a reputation for high-quality results. In emerging markets, such as the Philippines, where the demands of multi-million-dollar projects have become a proving ground for newer, more efficient technologies, this expertise puts the company at the forefront. \u201cFrom North Africa to South East Asia, we cover a lot of ground,\u201d Parkhill said. \u201cBut being able to meet the contractor where they are is key to a successful solution. Working with CLJV, there were a number of challenges we had to overcome to keep the project on track. Hydrodemolition was the best solution and Aquajet was the best tool for the job.\u201d Troubled Water Access was the primary problem. CLJV was conducting construction on several bridge pilons simultaneously. To minimize disruptions to the local community, the project\u2019s primary staging area, as well as the initial pilon, were only accessible from the coast. This meant the concrete had to be mixed 2.5 kilometers (1.6 miles) down the coast then transported by barge to the jobsite. From there, the barge was grounded, and the trucks disembarked directly onto the beach. The pilon was 30 meters (98 feet) inland. Overall, the transportation delay had no negative impacts on the concrete, and the 16-by-14-meter (52.5-by-45.9-foot) pilon quickly grew to 4 meters (13 feet) tall. However, a complication with a single delivery threatened to throw the entire project behind schedule and over budget. \u201cWhen you are working with concrete, sometimes things don\u2019t go to plan,\u201d Parkhill said. \u201cIt\u2019s a delicate equation, after all, and even a slight miscalculation can ruin the mixture. Unfortunately, when that happens, there isn\u2019t an easy fix.\u201d Crews knew there was a problem immediately. The concrete was already setting as they pumped. Vibrating and other correctional methods failed, and the pour was ultimately unsuccessful. Even worse, the concrete fell 350 millimeters (13.8 inches) short, leaving a mesh of exposed rebar. For CLJV and Asia Waterjet Equipment, the challenges were adding up, making for a very difficult repair. The pilon was nearly complete. While CLJV had budgeted time and money for small complications, it could not afford to demolish the whole pilon and start over. Crews with handheld breakers or excavators could remove the poor-quality concrete, but only by destroying the rebar. They would have to cut the exposed rebar at the top of the pilon to access the concrete a foot below. More rebar would be damaged as the poor-quality concrete was removed, and microfractures from the vibration of jackhammers or excavators would weaken the remaining concrete, jeopardizing the pilon\u2019s integrity. \u201cThere was no option; the rebar and existing good concrete had to be protected,\u201d Parkhill said. \u201cIf CLJV went with traditional demolition methods, they\u2019d have to open, pry apart where possible or cut the rebar and manually jack hammer out the bad concrete. There\u2019s no guarantee a man using a jack hammer could gauge what\u2019s good and what\u2019s bad, so they\u2019d end up removing extra. Then they\u2019d have to bend the rebar back into place without breaking it, or weld or cut new threads and join with it threaded couplers. It would add weeks to the project and a significant cost to the budget. They simply couldn\u2019t afford it.\u201d Asia Waterjet Equipment knew Hydrodemolition was the only solution. The non-intrusive method uses high-pressure water jets as powerful as 40,000 psi manipulated by an automated robot to remove layers of deteriorated and damaged concrete. The high-pressure water exceeds the strength of the concrete to widen existing pores and microcracks, breaking it apart in a controlled manner. Unlike other mechanical methods, Hydrodemolition is impact free, eliminating the vibrations that cause microfractures. Additionally, the method meets European Standards EN 1504 and provides a superior bonding surface for new concrete. The Aqua Cutter 710V\u2019s high-pressure water jet leaves a rough, irregular profile after removing the initial layer of concrete that results in a better bonding strength. The robot also cleans and descales the exposed rebar and removes non-visible contaminants such as dirt, mud, foundation mud, salts, chlorides and sulfates. Building Bridges Productivity was also a concern. With simultaneous construction continuing on several other pilons in the area, crews needed to remove the poor-quality concrete and complete repairs quickly \u2014 with minimal labor. With the ability to complete concrete removal tasks up to 25 times faster than a hand lance, the Aqua Cutter provided the necessary solution to keep the project on schedule. Asia Waterjet Equipment brought in Aquajet Special Application Manager Kjell Isaksson to support the operation. \u201cThere were a lot of variables and no room for error,\u201d Parkhill said. \u201cTo minimize the risk of delays, we decided it would be best to have an Aquajet specialist on site.\u201d Like the cement trucks, the Aqua Cutter and all support equipment, including a high-pressure waterjet power pack with a 4200 series Jetstream pump, had to access the site from the Mactan Chanel. Proximity to the water and the frequent, heavy rains of monsoon season made ground conditions difficult. However, since the Aqua Cutter is self-propelled with tracks, the uneven, muddy terrain presented no problems for Asia Waterjet Equipment. This minimized necessary site preparations and helped accelerate repairs. Crossing the Bridge to Success This mobility was also necessary for tackling the demolition itself. Once lifted the 4 meters (13 feet) onto the pile cap by a crane, the Aqua Cutter was able to easily maneuver over the rebar. The high-pressure pump was setup 7 meters (23 feet) away and connected to the Hydrodemolition robot by a high-pressure hose. To help reduce cost and increase production, Asia Waterjet Equipment opted to use seawater for the majority of the demolition rather than bring in fresh water. The company continually filled two 20-cubic meter (5,283 gallon) night tanks directly from the Mactan Chanel. Fresh water was only used during the last two days of the project to remove salt and other impurities that could impact bonding. Using the Hydrodemolition robot, operating at 1,000 bar (15,000 psi), and two employees, Asia Waterjet Equipment removed 10 cubic meters (13 cubic yards) of poor-quality concrete at a depth of 150-250 millimeters (6-10 inches) in days. \u201cWith the Aquajet Aqua Cutter, we increased productivity to a point where construction was back on schedule,\u201d Parkhill said. \u201cWithout Hydrodemolition, there\u2019s no way CLJV would have been able to do that.\u201d The Future of Hydrodemolition While construction on the bridge system continues, Asia Waterjet Equipment is already on to the next challenge. \u201cConstruction in Southeast Asia is changing,\u201d Parkhill said. \u201cRobotic processes like Hydrodemolition are proving you can have productivity and safety. With innovative partners like Aquajet, Asia Waterjet Equipment is playing a leading role in facilitating that change.\u201d\" width=\"700\" height=\"525\"><\/a><\/p>\n<p><em>Um die Bewehrung und den vorhandenen guten Beton zu sch\u00fctzen, wusste Asia Waterjet Equipment, dass Hydrodemolition die einzige L\u00f6sung war. Bei dieser nicht-intrusiven Methode werden Hochdruck-Wasserstrahlen mit einer St\u00e4rke von bis zu 40.000 psi eingesetzt, die von einem automatisierten Roboter bedient werden, um Schichten von verfallenem und besch\u00e4digtem Beton zu entfernen. <\/em><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/aquajet.se\/bed\/uploads\/2021\/02\/aquajet_awe_filippinerna-bridge-repair_1024-7.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-9538\" src=\"https:\/\/aquajet.se\/bed\/uploads\/2021\/02\/aquajet_awe_filippinerna-bridge-repair_1024-7-700x525.jpg\" alt=\"No matter the project \u2014 from a simple structure to a massive, multi-million-dollar bridge system \u2014 efficient construction requires thorough planning. But, even with flawless logistics, projects can run into challenges that put deadlines in jeopardy. Construction is currently underway in the Philippines on a massive bridge system connecting Cebu City with Cordova on the southern end of Mactan Island. The 8.5-kilometer (5.3-mile) Cebu-Cordova Link Expressway, slated for completion in 2021, will span the Mactan Channel with 51-meter (167-feet) navigational clearance for shipping vessels. It promises to ease congestion between Cebu and Mactan and boost economic activities throughout the region by providing additional access to the island and the Mactan-Cebu International Airport for an estimated 50,000 vehicles a day. As expected, the construction \u2014 one of the largest infrastructure projects in the country \u2014 relies on a carefully choreographed plan of simultaneous operations to meet strict deadlines. Expert logistics allow crews to avoid many hurdles; however, unforeseen challenges can still arise. When a bad batch of concrete threatened to derail progress on one of the bridge\u2019s first pilons, project managers needed a creative solution that could quickly remove the poor-quality concrete without damaging the rebar or putting the project behind schedule. Hydrodemolition was the only process with the precision and productivity to keep the project on track. Cebu Link Joint Venture (CLJV) contacted Singapore-based Asia Waterjet Equipment, the region\u2019s premier Hydrodemolition experts. Access and site conditions presented quite a challenge, but with decades of experience in some of the most hazardous applications, Asia Waterjet Equipment was more than up to the task. With the clock ticking and monsoon season in full swing, the team arrived onsite with an Aquajet Aqua Cutter 710V Hydrodemolition robot and Jetstream HP Waterjetting Pump. Passion for Problem Solving In the early 1990s, Asia Waterjet Equipment\u2019s founders were part of the brave crews tasked with containing oil wells in Kuwait that were destroyed during the Persian Gulf War. Their experience helped avert a huge environmental crisis. They remained in the Middle East, eventually founding Asia Waterjet Equipment in 2006, bringing high-pressure water jetting and robotic Hydrodemolition to the Middle East and South East Asia. Now, with offices in Dubai, Abu Dhabi, Saudi Arabia, Bahrain and Singapore and a strong presence and partnerships throughout these territories, the company is known for creative problem solving \u2014 delivering innovative cutting and cleaning solutions for hazardous areas or difficult to pump products in petrochemical, wastewater, mining, construction and other industries. They also offer a range of robotic solutions to help customers protect employees and perform beyond expectations. \u201cOur focus has always been providing the cutting-edge tools to make challenging applications safer and more efficient,\u201d said Chris Parkhill, Asia Waterjet Equipment Sales Director for Southeast Asia. \u201cFrom the very beginning, we\u2019ve been involved in some of the most hazardous operations out there. We understand the demands and dangers, which is why we partner with industry-leading equipment manufacturers for robust solutions that maximize safety and productivity.\u201d Pairing the right tools with experienced team members who bring a wealth of industry knowledge and a deep understanding of local markets to each project has earned Asia Waterjet Equipment a reputation for high-quality results. In emerging markets, such as the Philippines, where the demands of multi-million-dollar projects have become a proving ground for newer, more efficient technologies, this expertise puts the company at the forefront. \u201cFrom North Africa to South East Asia, we cover a lot of ground,\u201d Parkhill said. \u201cBut being able to meet the contractor where they are is key to a successful solution. Working with CLJV, there were a number of challenges we had to overcome to keep the project on track. Hydrodemolition was the best solution and Aquajet was the best tool for the job.\u201d Troubled Water Access was the primary problem. CLJV was conducting construction on several bridge pilons simultaneously. To minimize disruptions to the local community, the project\u2019s primary staging area, as well as the initial pilon, were only accessible from the coast. This meant the concrete had to be mixed 2.5 kilometers (1.6 miles) down the coast then transported by barge to the jobsite. From there, the barge was grounded, and the trucks disembarked directly onto the beach. The pilon was 30 meters (98 feet) inland. Overall, the transportation delay had no negative impacts on the concrete, and the 16-by-14-meter (52.5-by-45.9-foot) pilon quickly grew to 4 meters (13 feet) tall. However, a complication with a single delivery threatened to throw the entire project behind schedule and over budget. \u201cWhen you are working with concrete, sometimes things don\u2019t go to plan,\u201d Parkhill said. \u201cIt\u2019s a delicate equation, after all, and even a slight miscalculation can ruin the mixture. Unfortunately, when that happens, there isn\u2019t an easy fix.\u201d Crews knew there was a problem immediately. The concrete was already setting as they pumped. Vibrating and other correctional methods failed, and the pour was ultimately unsuccessful. Even worse, the concrete fell 350 millimeters (13.8 inches) short, leaving a mesh of exposed rebar. For CLJV and Asia Waterjet Equipment, the challenges were adding up, making for a very difficult repair. The pilon was nearly complete. While CLJV had budgeted time and money for small complications, it could not afford to demolish the whole pilon and start over. Crews with handheld breakers or excavators could remove the poor-quality concrete, but only by destroying the rebar. They would have to cut the exposed rebar at the top of the pilon to access the concrete a foot below. More rebar would be damaged as the poor-quality concrete was removed, and microfractures from the vibration of jackhammers or excavators would weaken the remaining concrete, jeopardizing the pilon\u2019s integrity. \u201cThere was no option; the rebar and existing good concrete had to be protected,\u201d Parkhill said. \u201cIf CLJV went with traditional demolition methods, they\u2019d have to open, pry apart where possible or cut the rebar and manually jack hammer out the bad concrete. There\u2019s no guarantee a man using a jack hammer could gauge what\u2019s good and what\u2019s bad, so they\u2019d end up removing extra. Then they\u2019d have to bend the rebar back into place without breaking it, or weld or cut new threads and join with it threaded couplers. It would add weeks to the project and a significant cost to the budget. They simply couldn\u2019t afford it.\u201d Asia Waterjet Equipment knew Hydrodemolition was the only solution. The non-intrusive method uses high-pressure water jets as powerful as 40,000 psi manipulated by an automated robot to remove layers of deteriorated and damaged concrete. The high-pressure water exceeds the strength of the concrete to widen existing pores and microcracks, breaking it apart in a controlled manner. Unlike other mechanical methods, Hydrodemolition is impact free, eliminating the vibrations that cause microfractures. Additionally, the method meets European Standards EN 1504 and provides a superior bonding surface for new concrete. The Aqua Cutter 710V\u2019s high-pressure water jet leaves a rough, irregular profile after removing the initial layer of concrete that results in a better bonding strength. The robot also cleans and descales the exposed rebar and removes non-visible contaminants such as dirt, mud, foundation mud, salts, chlorides and sulfates. Building Bridges Productivity was also a concern. With simultaneous construction continuing on several other pilons in the area, crews needed to remove the poor-quality concrete and complete repairs quickly \u2014 with minimal labor. With the ability to complete concrete removal tasks up to 25 times faster than a hand lance, the Aqua Cutter provided the necessary solution to keep the project on schedule. Asia Waterjet Equipment brought in Aquajet Special Application Manager Kjell Isaksson to support the operation. \u201cThere were a lot of variables and no room for error,\u201d Parkhill said. \u201cTo minimize the risk of delays, we decided it would be best to have an Aquajet specialist on site.\u201d Like the cement trucks, the Aqua Cutter and all support equipment, including a high-pressure waterjet power pack with a 4200 series Jetstream pump, had to access the site from the Mactan Chanel. Proximity to the water and the frequent, heavy rains of monsoon season made ground conditions difficult. However, since the Aqua Cutter is self-propelled with tracks, the uneven, muddy terrain presented no problems for Asia Waterjet Equipment. This minimized necessary site preparations and helped accelerate repairs. Crossing the Bridge to Success This mobility was also necessary for tackling the demolition itself. Once lifted the 4 meters (13 feet) onto the pile cap by a crane, the Aqua Cutter was able to easily maneuver over the rebar. The high-pressure pump was setup 7 meters (23 feet) away and connected to the Hydrodemolition robot by a high-pressure hose. To help reduce cost and increase production, Asia Waterjet Equipment opted to use seawater for the majority of the demolition rather than bring in fresh water. The company continually filled two 20-cubic meter (5,283 gallon) night tanks directly from the Mactan Chanel. Fresh water was only used during the last two days of the project to remove salt and other impurities that could impact bonding. Using the Hydrodemolition robot, operating at 1,000 bar (15,000 psi), and two employees, Asia Waterjet Equipment removed 10 cubic meters (13 cubic yards) of poor-quality concrete at a depth of 150-250 millimeters (6-10 inches) in days. \u201cWith the Aquajet Aqua Cutter, we increased productivity to a point where construction was back on schedule,\u201d Parkhill said. \u201cWithout Hydrodemolition, there\u2019s no way CLJV would have been able to do that.\u201d The Future of Hydrodemolition While construction on the bridge system continues, Asia Waterjet Equipment is already on to the next challenge. \u201cConstruction in Southeast Asia is changing,\u201d Parkhill said. \u201cRobotic processes like Hydrodemolition are proving you can have productivity and safety. With innovative partners like Aquajet, Asia Waterjet Equipment is playing a leading role in facilitating that change.\u201d\" width=\"700\" height=\"525\"><\/a><\/p>\n<p><em>Crews mit Handh\u00e4mmern oder Baggern konnten den minderwertigen Beton zwar entfernen, aber nur, indem sie den Betonstahl zerst\u00f6rten. Asia Waterjet Equipment wusste, dass Hydrodemolition das einzige Verfahren mit der n\u00f6tigen Pr\u00e4zision und Produktivit\u00e4t war, um das Projekt am Laufen zu halten. <\/em><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Tr\u00fcbes Wasser<\/strong><\/p>\n<p>Der Zugang war das Hauptproblem. CLJV f\u00fchrte die Bauarbeiten an mehreren Br\u00fcckenpfeilern gleichzeitig durch. Um die Beeintr\u00e4chtigungen f\u00fcr die \u00f6rtliche Bev\u00f6lkerung so gering wie m\u00f6glich zu halten, waren der prim\u00e4re Bereitstellungsbereich des Projekts sowie der erste Pfeiler nur von der K\u00fcste aus zug\u00e4nglich. Das bedeutete, dass der Beton 2,5 Kilometer (1,6 Meilen) k\u00fcstenabw\u00e4rts gemischt und dann per Lastkahn zur Baustelle transportiert werden musste. Von dort aus wurde der Lastkahn auf Grund gesetzt, und die Lastwagen konnten direkt am Strand entladen werden. Der Pfeiler lag 30 Meter (98 Fu\u00df) landeinw\u00e4rts.     <\/p>\n<h5><\/h5>\n<p>Insgesamt hatte die Transportverz\u00f6gerung keine negativen Auswirkungen auf den Beton, und der 16 mal 14 Meter gro\u00dfe Pilon wuchs schnell auf eine H\u00f6he von 4 Metern (13 Fu\u00df) an. Eine Komplikation bei einer einzigen Lieferung drohte jedoch das gesamte Projekt in Verzug zu bringen und das Budget zu sprengen. <\/p>\n<h5><\/h5>\n<p>&#8220;Wenn man mit Beton arbeitet, laufen die Dinge manchmal nicht nach Plan&#8221;, sagte Parkhill. &#8220;Es ist schlie\u00dflich eine heikle Gleichung, und schon ein kleiner Rechenfehler kann die Mischung ruinieren. Wenn das passiert, gibt es leider keine einfache L\u00f6sung.&#8221; <\/p>\n<h5><\/h5>\n<p>Die Crews wussten sofort, dass es ein Problem gab. Der Beton war bereits am Erstarren, als sie pumpten. R\u00fctteln und andere Korrekturmethoden schlugen fehl, und der Guss war letztlich erfolglos. Noch schlimmer war, dass der Beton 350 Millimeter (13,8 Zoll) zu kurz war und ein Netz aus freiliegenden Bewehrungsst\u00e4ben hinterlie\u00df.   <\/p>\n<h5><\/h5>\n<p>F\u00fcr CLJV und Asia Waterjet Equipment summierten sich die Herausforderungen und machten die Reparatur zu einer sehr schwierigen Angelegenheit. Der Pfeiler war fast vollst\u00e4ndig zerst\u00f6rt. CLJV hatte zwar Zeit und Geld f\u00fcr kleinere Komplikationen eingeplant, konnte es sich aber nicht leisten, den gesamten Pfeiler abzurei\u00dfen und neu zu beginnen.  <\/p>\n<h5><\/h5>\n<p>Crews mit Handh\u00e4mmern oder Baggern k\u00f6nnten den minderwertigen Beton entfernen, aber nur, indem sie den Bewehrungsstahl zerst\u00f6ren. Sie m\u00fcssten den freiliegenden Bewehrungsstahl am oberen Ende des Pfeilers durchschneiden, um an den Beton einen Fu\u00df darunter zu gelangen. Beim Entfernen des minderwertigen Betons w\u00fcrden weitere Bewehrungsst\u00e4be besch\u00e4digt werden, und die durch die Vibrationen der Presslufth\u00e4mmer oder Bagger verursachten Mikrobr\u00fcche w\u00fcrden den verbleibenden Beton schw\u00e4chen und die Integrit\u00e4t des Pfeilers gef\u00e4hrden.  <\/p>\n<h5><\/h5>\n<p>&#8220;Es gab keine andere M\u00f6glichkeit. Der Bewehrungsstahl und der vorhandene gute Beton mussten gesch\u00fctzt werden&#8221;, sagte Parkhill. &#8220;Wenn CLJV herk\u00f6mmliche Abrissmethoden anwenden w\u00fcrde, m\u00fcssten sie das Geb\u00e4ude \u00f6ffnen, die Bewehrung aufbrechen oder durchschneiden und den schlechten Beton mit einem Presslufthammer herausschlagen. Es gibt keine Garantie daf\u00fcr, dass ein Mann mit einem Presslufthammer beurteilen kann, was gut und was schlecht ist, so dass sie am Ende noch mehr entfernen m\u00fcssten. Dann m\u00fcssten sie den Betonstahl wieder an seinen Platz biegen, ohne ihn zu brechen, oder neue Gewinde schwei\u00dfen oder schneiden und mit Gewindekupplungen verbinden. Das w\u00fcrde das Projekt um Wochen verl\u00e4ngern und das Budget erheblich belasten. Das konnten sie sich einfach nicht leisten.&#8221; <\/p>\n<h5><\/h5>\n<p>Asia Waterjet Equipment wusste, dass Hydrodemolition die einzige L\u00f6sung war. Bei dieser nicht-intrusiven Methode werden Hochdruck-Wasserstrahlen mit einer St\u00e4rke von bis zu 40.000 psi eingesetzt, die von einem automatisierten Roboter bedient werden, um Schichten von verfallenem und besch\u00e4digtem Beton zu entfernen. Das Hochdruckwasser \u00fcbersteigt die Festigkeit des Betons, um vorhandene Poren und Mikrorisse zu erweitern und den Beton auf kontrollierte Weise aufzubrechen. Im Gegensatz zu anderen mechanischen Methoden ist Hydrodemolition sto\u00dffrei und eliminiert die Vibrationen, die Mikrorisse verursachen.   <\/p>\n<h5><\/h5>\n<p>Au\u00dferdem erf\u00fcllt die Methode die <a href=\"https:\/\/aquajet.se\/hydrodemolition-101\/crash-course-101\/\">europ\u00e4ische Norm EN 1504<\/a> und bietet eine hervorragende Haftfl\u00e4che f\u00fcr neuen Beton. Der Hochdruck-Wasserstrahl des Aqua Cutter 710V hinterl\u00e4sst nach dem Entfernen der ersten Betonschicht ein raues, unregelm\u00e4\u00dfiges Profil, das zu einer besseren Bindekraft f\u00fchrt. Der Roboter reinigt und entkalkt auch die freiliegenden Bewehrungsst\u00e4be und entfernt nicht sichtbare Verunreinigungen wie Schmutz, Schlamm, Fundamentschlamm, Salze, Chloride und Sulfate.  <\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/aquajet.se\/bed\/uploads\/2021\/02\/aquajet_awe_filippinerna-bridge-repair-1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-9532\" src=\"https:\/\/aquajet.se\/bed\/uploads\/2021\/02\/aquajet_awe_filippinerna-bridge-repair-1-700x525.jpg\" alt=\"No matter the project \u2014 from a simple structure to a massive, multi-million-dollar bridge system \u2014 efficient construction requires thorough planning. But, even with flawless logistics, projects can run into challenges that put deadlines in jeopardy. Construction is currently underway in the Philippines on a massive bridge system connecting Cebu City with Cordova on the southern end of Mactan Island. The 8.5-kilometer (5.3-mile) Cebu-Cordova Link Expressway, slated for completion in 2021, will span the Mactan Channel with 51-meter (167-feet) navigational clearance for shipping vessels. It promises to ease congestion between Cebu and Mactan and boost economic activities throughout the region by providing additional access to the island and the Mactan-Cebu International Airport for an estimated 50,000 vehicles a day. As expected, the construction \u2014 one of the largest infrastructure projects in the country \u2014 relies on a carefully choreographed plan of simultaneous operations to meet strict deadlines. Expert logistics allow crews to avoid many hurdles; however, unforeseen challenges can still arise. When a bad batch of concrete threatened to derail progress on one of the bridge\u2019s first pilons, project managers needed a creative solution that could quickly remove the poor-quality concrete without damaging the rebar or putting the project behind schedule. Hydrodemolition was the only process with the precision and productivity to keep the project on track. Cebu Link Joint Venture (CLJV) contacted Singapore-based Asia Waterjet Equipment, the region\u2019s premier Hydrodemolition experts. Access and site conditions presented quite a challenge, but with decades of experience in some of the most hazardous applications, Asia Waterjet Equipment was more than up to the task. With the clock ticking and monsoon season in full swing, the team arrived onsite with an Aquajet Aqua Cutter 710V Hydrodemolition robot and Jetstream HP Waterjetting Pump. Passion for Problem Solving In the early 1990s, Asia Waterjet Equipment\u2019s founders were part of the brave crews tasked with containing oil wells in Kuwait that were destroyed during the Persian Gulf War. Their experience helped avert a huge environmental crisis. They remained in the Middle East, eventually founding Asia Waterjet Equipment in 2006, bringing high-pressure water jetting and robotic Hydrodemolition to the Middle East and South East Asia. Now, with offices in Dubai, Abu Dhabi, Saudi Arabia, Bahrain and Singapore and a strong presence and partnerships throughout these territories, the company is known for creative problem solving \u2014 delivering innovative cutting and cleaning solutions for hazardous areas or difficult to pump products in petrochemical, wastewater, mining, construction and other industries. They also offer a range of robotic solutions to help customers protect employees and perform beyond expectations. \u201cOur focus has always been providing the cutting-edge tools to make challenging applications safer and more efficient,\u201d said Chris Parkhill, Asia Waterjet Equipment Sales Director for Southeast Asia. \u201cFrom the very beginning, we\u2019ve been involved in some of the most hazardous operations out there. We understand the demands and dangers, which is why we partner with industry-leading equipment manufacturers for robust solutions that maximize safety and productivity.\u201d Pairing the right tools with experienced team members who bring a wealth of industry knowledge and a deep understanding of local markets to each project has earned Asia Waterjet Equipment a reputation for high-quality results. In emerging markets, such as the Philippines, where the demands of multi-million-dollar projects have become a proving ground for newer, more efficient technologies, this expertise puts the company at the forefront. \u201cFrom North Africa to South East Asia, we cover a lot of ground,\u201d Parkhill said. \u201cBut being able to meet the contractor where they are is key to a successful solution. Working with CLJV, there were a number of challenges we had to overcome to keep the project on track. Hydrodemolition was the best solution and Aquajet was the best tool for the job.\u201d Troubled Water Access was the primary problem. CLJV was conducting construction on several bridge pilons simultaneously. To minimize disruptions to the local community, the project\u2019s primary staging area, as well as the initial pilon, were only accessible from the coast. This meant the concrete had to be mixed 2.5 kilometers (1.6 miles) down the coast then transported by barge to the jobsite. From there, the barge was grounded, and the trucks disembarked directly onto the beach. The pilon was 30 meters (98 feet) inland. Overall, the transportation delay had no negative impacts on the concrete, and the 16-by-14-meter (52.5-by-45.9-foot) pilon quickly grew to 4 meters (13 feet) tall. However, a complication with a single delivery threatened to throw the entire project behind schedule and over budget. \u201cWhen you are working with concrete, sometimes things don\u2019t go to plan,\u201d Parkhill said. \u201cIt\u2019s a delicate equation, after all, and even a slight miscalculation can ruin the mixture. Unfortunately, when that happens, there isn\u2019t an easy fix.\u201d Crews knew there was a problem immediately. The concrete was already setting as they pumped. Vibrating and other correctional methods failed, and the pour was ultimately unsuccessful. Even worse, the concrete fell 350 millimeters (13.8 inches) short, leaving a mesh of exposed rebar. For CLJV and Asia Waterjet Equipment, the challenges were adding up, making for a very difficult repair. The pilon was nearly complete. While CLJV had budgeted time and money for small complications, it could not afford to demolish the whole pilon and start over. Crews with handheld breakers or excavators could remove the poor-quality concrete, but only by destroying the rebar. They would have to cut the exposed rebar at the top of the pilon to access the concrete a foot below. More rebar would be damaged as the poor-quality concrete was removed, and microfractures from the vibration of jackhammers or excavators would weaken the remaining concrete, jeopardizing the pilon\u2019s integrity. \u201cThere was no option; the rebar and existing good concrete had to be protected,\u201d Parkhill said. \u201cIf CLJV went with traditional demolition methods, they\u2019d have to open, pry apart where possible or cut the rebar and manually jack hammer out the bad concrete. There\u2019s no guarantee a man using a jack hammer could gauge what\u2019s good and what\u2019s bad, so they\u2019d end up removing extra. Then they\u2019d have to bend the rebar back into place without breaking it, or weld or cut new threads and join with it threaded couplers. It would add weeks to the project and a significant cost to the budget. They simply couldn\u2019t afford it.\u201d Asia Waterjet Equipment knew Hydrodemolition was the only solution. The non-intrusive method uses high-pressure water jets as powerful as 40,000 psi manipulated by an automated robot to remove layers of deteriorated and damaged concrete. The high-pressure water exceeds the strength of the concrete to widen existing pores and microcracks, breaking it apart in a controlled manner. Unlike other mechanical methods, Hydrodemolition is impact free, eliminating the vibrations that cause microfractures. Additionally, the method meets European Standards EN 1504 and provides a superior bonding surface for new concrete. The Aqua Cutter 710V\u2019s high-pressure water jet leaves a rough, irregular profile after removing the initial layer of concrete that results in a better bonding strength. The robot also cleans and descales the exposed rebar and removes non-visible contaminants such as dirt, mud, foundation mud, salts, chlorides and sulfates. Building Bridges Productivity was also a concern. With simultaneous construction continuing on several other pilons in the area, crews needed to remove the poor-quality concrete and complete repairs quickly \u2014 with minimal labor. With the ability to complete concrete removal tasks up to 25 times faster than a hand lance, the Aqua Cutter provided the necessary solution to keep the project on schedule. Asia Waterjet Equipment brought in Aquajet Special Application Manager Kjell Isaksson to support the operation. \u201cThere were a lot of variables and no room for error,\u201d Parkhill said. \u201cTo minimize the risk of delays, we decided it would be best to have an Aquajet specialist on site.\u201d Like the cement trucks, the Aqua Cutter and all support equipment, including a high-pressure waterjet power pack with a 4200 series Jetstream pump, had to access the site from the Mactan Chanel. Proximity to the water and the frequent, heavy rains of monsoon season made ground conditions difficult. However, since the Aqua Cutter is self-propelled with tracks, the uneven, muddy terrain presented no problems for Asia Waterjet Equipment. This minimized necessary site preparations and helped accelerate repairs. Crossing the Bridge to Success This mobility was also necessary for tackling the demolition itself. Once lifted the 4 meters (13 feet) onto the pile cap by a crane, the Aqua Cutter was able to easily maneuver over the rebar. The high-pressure pump was setup 7 meters (23 feet) away and connected to the Hydrodemolition robot by a high-pressure hose. To help reduce cost and increase production, Asia Waterjet Equipment opted to use seawater for the majority of the demolition rather than bring in fresh water. The company continually filled two 20-cubic meter (5,283 gallon) night tanks directly from the Mactan Chanel. Fresh water was only used during the last two days of the project to remove salt and other impurities that could impact bonding. Using the Hydrodemolition robot, operating at 1,000 bar (15,000 psi), and two employees, Asia Waterjet Equipment removed 10 cubic meters (13 cubic yards) of poor-quality concrete at a depth of 150-250 millimeters (6-10 inches) in days. \u201cWith the Aquajet Aqua Cutter, we increased productivity to a point where construction was back on schedule,\u201d Parkhill said. \u201cWithout Hydrodemolition, there\u2019s no way CLJV would have been able to do that.\u201d The Future of Hydrodemolition While construction on the bridge system continues, Asia Waterjet Equipment is already on to the next challenge. \u201cConstruction in Southeast Asia is changing,\u201d Parkhill said. \u201cRobotic processes like Hydrodemolition are proving you can have productivity and safety. With innovative partners like Aquajet, Asia Waterjet Equipment is playing a leading role in facilitating that change.\u201d\" width=\"700\" height=\"525\"><\/a><\/p>\n<p><em>Mit der F\u00e4higkeit, Beton bis zu 25 Mal schneller zu entfernen als eine Handlanze, war der Aqua Cutter von Aquajet die notwendige L\u00f6sung, um das Projekt von Asia Waterjet Equipment im Zeitplan zu halten.<\/em><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Br\u00fccken bauen<\/strong><\/p>\n<p>Auch die Produktivit\u00e4t war ein Problem. Da gleichzeitig an mehreren anderen Pfeilern in der Gegend gebaut wurde, mussten die Teams den minderwertigen Beton entfernen und die Reparaturen schnell und mit minimalem Arbeitsaufwand durchf\u00fchren. <\/p>\n<h5><\/h5>\n<p>Mit der F\u00e4higkeit, Beton bis zu 25 Mal schneller zu entfernen als eine Handlanze, war der Aqua Cutter die notwendige L\u00f6sung, um das Projekt im Zeitplan zu halten. Asia Waterjet Equipment holte Aquajet Special Application Manager Kjell Isaksson zur Unterst\u00fctzung des Projekts hinzu. <\/p>\n<h5><\/h5>\n<p>&#8220;Es gab viele Variablen und keinen Spielraum f\u00fcr Fehler&#8221;, sagte Parkhill. &#8220;Um das Risiko von Verz\u00f6gerungen zu minimieren, beschlossen wir, dass es am besten w\u00e4re, einen Aquajet-Spezialisten vor Ort zu haben. <\/p>\n<h5><\/h5>\n<p>Wie die Zementlaster mussten auch der Aqua Cutter und die gesamte Ausr\u00fcstung, einschlie\u00dflich eines Hochdruck-Wasserstrahlaggregats mit einer Jetstream-Pumpe der Serie 4200, die Baustelle vom Mactan Chanel aus erreichen. Die N\u00e4he zum Wasser und die h\u00e4ufigen, starken Regenf\u00e4lle w\u00e4hrend der Monsunzeit erschwerten die Bodenverh\u00e4ltnisse. Da der Aqua Cutter jedoch selbstfahrend ist und \u00fcber Ketten verf\u00fcgt, stellte das unebene, schlammige Gel\u00e4nde f\u00fcr Asia Waterjet Equipment kein Problem dar. Dies minimierte die notwendigen Vorbereitungen vor Ort und half, die Reparaturen zu beschleunigen.   <\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/aquajet.se\/bed\/uploads\/2021\/02\/aquajet_awe_filippinerna-bridge-repair_1024-5.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-9536\" src=\"https:\/\/aquajet.se\/bed\/uploads\/2021\/02\/aquajet_awe_filippinerna-bridge-repair_1024-5-700x525.jpg\" alt=\"No matter the project \u2014 from a simple structure to a massive, multi-million-dollar bridge system \u2014 efficient construction requires thorough planning. But, even with flawless logistics, projects can run into challenges that put deadlines in jeopardy. Construction is currently underway in the Philippines on a massive bridge system connecting Cebu City with Cordova on the southern end of Mactan Island. The 8.5-kilometer (5.3-mile) Cebu-Cordova Link Expressway, slated for completion in 2021, will span the Mactan Channel with 51-meter (167-feet) navigational clearance for shipping vessels. It promises to ease congestion between Cebu and Mactan and boost economic activities throughout the region by providing additional access to the island and the Mactan-Cebu International Airport for an estimated 50,000 vehicles a day. As expected, the construction \u2014 one of the largest infrastructure projects in the country \u2014 relies on a carefully choreographed plan of simultaneous operations to meet strict deadlines. Expert logistics allow crews to avoid many hurdles; however, unforeseen challenges can still arise. When a bad batch of concrete threatened to derail progress on one of the bridge\u2019s first pilons, project managers needed a creative solution that could quickly remove the poor-quality concrete without damaging the rebar or putting the project behind schedule. Hydrodemolition was the only process with the precision and productivity to keep the project on track. Cebu Link Joint Venture (CLJV) contacted Singapore-based Asia Waterjet Equipment, the region\u2019s premier Hydrodemolition experts. Access and site conditions presented quite a challenge, but with decades of experience in some of the most hazardous applications, Asia Waterjet Equipment was more than up to the task. With the clock ticking and monsoon season in full swing, the team arrived onsite with an Aquajet Aqua Cutter 710V Hydrodemolition robot and Jetstream HP Waterjetting Pump. Passion for Problem Solving In the early 1990s, Asia Waterjet Equipment\u2019s founders were part of the brave crews tasked with containing oil wells in Kuwait that were destroyed during the Persian Gulf War. Their experience helped avert a huge environmental crisis. They remained in the Middle East, eventually founding Asia Waterjet Equipment in 2006, bringing high-pressure water jetting and robotic Hydrodemolition to the Middle East and South East Asia. Now, with offices in Dubai, Abu Dhabi, Saudi Arabia, Bahrain and Singapore and a strong presence and partnerships throughout these territories, the company is known for creative problem solving \u2014 delivering innovative cutting and cleaning solutions for hazardous areas or difficult to pump products in petrochemical, wastewater, mining, construction and other industries. They also offer a range of robotic solutions to help customers protect employees and perform beyond expectations. \u201cOur focus has always been providing the cutting-edge tools to make challenging applications safer and more efficient,\u201d said Chris Parkhill, Asia Waterjet Equipment Sales Director for Southeast Asia. \u201cFrom the very beginning, we\u2019ve been involved in some of the most hazardous operations out there. We understand the demands and dangers, which is why we partner with industry-leading equipment manufacturers for robust solutions that maximize safety and productivity.\u201d Pairing the right tools with experienced team members who bring a wealth of industry knowledge and a deep understanding of local markets to each project has earned Asia Waterjet Equipment a reputation for high-quality results. In emerging markets, such as the Philippines, where the demands of multi-million-dollar projects have become a proving ground for newer, more efficient technologies, this expertise puts the company at the forefront. \u201cFrom North Africa to South East Asia, we cover a lot of ground,\u201d Parkhill said. \u201cBut being able to meet the contractor where they are is key to a successful solution. Working with CLJV, there were a number of challenges we had to overcome to keep the project on track. Hydrodemolition was the best solution and Aquajet was the best tool for the job.\u201d Troubled Water Access was the primary problem. CLJV was conducting construction on several bridge pilons simultaneously. To minimize disruptions to the local community, the project\u2019s primary staging area, as well as the initial pilon, were only accessible from the coast. This meant the concrete had to be mixed 2.5 kilometers (1.6 miles) down the coast then transported by barge to the jobsite. From there, the barge was grounded, and the trucks disembarked directly onto the beach. The pilon was 30 meters (98 feet) inland. Overall, the transportation delay had no negative impacts on the concrete, and the 16-by-14-meter (52.5-by-45.9-foot) pilon quickly grew to 4 meters (13 feet) tall. However, a complication with a single delivery threatened to throw the entire project behind schedule and over budget. \u201cWhen you are working with concrete, sometimes things don\u2019t go to plan,\u201d Parkhill said. \u201cIt\u2019s a delicate equation, after all, and even a slight miscalculation can ruin the mixture. Unfortunately, when that happens, there isn\u2019t an easy fix.\u201d Crews knew there was a problem immediately. The concrete was already setting as they pumped. Vibrating and other correctional methods failed, and the pour was ultimately unsuccessful. Even worse, the concrete fell 350 millimeters (13.8 inches) short, leaving a mesh of exposed rebar. For CLJV and Asia Waterjet Equipment, the challenges were adding up, making for a very difficult repair. The pilon was nearly complete. While CLJV had budgeted time and money for small complications, it could not afford to demolish the whole pilon and start over. Crews with handheld breakers or excavators could remove the poor-quality concrete, but only by destroying the rebar. They would have to cut the exposed rebar at the top of the pilon to access the concrete a foot below. More rebar would be damaged as the poor-quality concrete was removed, and microfractures from the vibration of jackhammers or excavators would weaken the remaining concrete, jeopardizing the pilon\u2019s integrity. \u201cThere was no option; the rebar and existing good concrete had to be protected,\u201d Parkhill said. \u201cIf CLJV went with traditional demolition methods, they\u2019d have to open, pry apart where possible or cut the rebar and manually jack hammer out the bad concrete. There\u2019s no guarantee a man using a jack hammer could gauge what\u2019s good and what\u2019s bad, so they\u2019d end up removing extra. Then they\u2019d have to bend the rebar back into place without breaking it, or weld or cut new threads and join with it threaded couplers. It would add weeks to the project and a significant cost to the budget. They simply couldn\u2019t afford it.\u201d Asia Waterjet Equipment knew Hydrodemolition was the only solution. The non-intrusive method uses high-pressure water jets as powerful as 40,000 psi manipulated by an automated robot to remove layers of deteriorated and damaged concrete. The high-pressure water exceeds the strength of the concrete to widen existing pores and microcracks, breaking it apart in a controlled manner. Unlike other mechanical methods, Hydrodemolition is impact free, eliminating the vibrations that cause microfractures. Additionally, the method meets European Standards EN 1504 and provides a superior bonding surface for new concrete. The Aqua Cutter 710V\u2019s high-pressure water jet leaves a rough, irregular profile after removing the initial layer of concrete that results in a better bonding strength. The robot also cleans and descales the exposed rebar and removes non-visible contaminants such as dirt, mud, foundation mud, salts, chlorides and sulfates. Building Bridges Productivity was also a concern. With simultaneous construction continuing on several other pilons in the area, crews needed to remove the poor-quality concrete and complete repairs quickly \u2014 with minimal labor. With the ability to complete concrete removal tasks up to 25 times faster than a hand lance, the Aqua Cutter provided the necessary solution to keep the project on schedule. Asia Waterjet Equipment brought in Aquajet Special Application Manager Kjell Isaksson to support the operation. \u201cThere were a lot of variables and no room for error,\u201d Parkhill said. \u201cTo minimize the risk of delays, we decided it would be best to have an Aquajet specialist on site.\u201d Like the cement trucks, the Aqua Cutter and all support equipment, including a high-pressure waterjet power pack with a 4200 series Jetstream pump, had to access the site from the Mactan Chanel. Proximity to the water and the frequent, heavy rains of monsoon season made ground conditions difficult. However, since the Aqua Cutter is self-propelled with tracks, the uneven, muddy terrain presented no problems for Asia Waterjet Equipment. This minimized necessary site preparations and helped accelerate repairs. Crossing the Bridge to Success This mobility was also necessary for tackling the demolition itself. Once lifted the 4 meters (13 feet) onto the pile cap by a crane, the Aqua Cutter was able to easily maneuver over the rebar. The high-pressure pump was setup 7 meters (23 feet) away and connected to the Hydrodemolition robot by a high-pressure hose. To help reduce cost and increase production, Asia Waterjet Equipment opted to use seawater for the majority of the demolition rather than bring in fresh water. The company continually filled two 20-cubic meter (5,283 gallon) night tanks directly from the Mactan Chanel. Fresh water was only used during the last two days of the project to remove salt and other impurities that could impact bonding. Using the Hydrodemolition robot, operating at 1,000 bar (15,000 psi), and two employees, Asia Waterjet Equipment removed 10 cubic meters (13 cubic yards) of poor-quality concrete at a depth of 150-250 millimeters (6-10 inches) in days. \u201cWith the Aquajet Aqua Cutter, we increased productivity to a point where construction was back on schedule,\u201d Parkhill said. \u201cWithout Hydrodemolition, there\u2019s no way CLJV would have been able to do that.\u201d The Future of Hydrodemolition While construction on the bridge system continues, Asia Waterjet Equipment is already on to the next challenge. \u201cConstruction in Southeast Asia is changing,\u201d Parkhill said. \u201cRobotic processes like Hydrodemolition are proving you can have productivity and safety. With innovative partners like Aquajet, Asia Waterjet Equipment is playing a leading role in facilitating that change.\u201d\" width=\"700\" height=\"525\"><\/a><\/p>\n<p><em>Das unebene, schlammige Gel\u00e4nde auf der Baustelle stellte f\u00fcr den selbstfahrenden Aqua Cutter kein Problem dar. Dies minimierte die notwendigen Vorbereitungen vor Ort und half, die Reparaturen zu beschleunigen. <\/em><\/p>\n<p><strong> <\/strong><\/p>\n<p><strong>\u00dcberqueren Sie die Br\u00fccke zum Erfolg<\/strong><\/p>\n<p>Diese Mobilit\u00e4t war auch notwendig, um den Abriss selbst in Angriff zu nehmen. Nachdem der Aqua Cutter von einem Kran die 4 Meter (13 Fu\u00df) auf die Pfahlkappe gehoben worden war, konnte er problemlos \u00fcber den Betonstahl man\u00f6vrieren. Die Hochdruckpumpe wurde 7 Meter (23 Fu\u00df) entfernt aufgestellt und \u00fcber einen Hochdruckschlauch mit dem Hydrodemolition-Roboter verbunden.  <\/p>\n<h5><\/h5>\n<p>Um die Kosten zu senken und die Produktion zu steigern, entschied sich Asia Waterjet Equipment daf\u00fcr, f\u00fcr den Gro\u00dfteil der Abbrucharbeiten Meerwasser zu verwenden, anstatt Frischwasser heranzuschaffen. Das Unternehmen f\u00fcllte kontinuierlich zwei 20-Kubikmeter-Nachttanks (5.283 Gallonen) direkt aus dem Mactan Chanel. S\u00fc\u00dfwasser wurde nur in den letzten beiden Tagen des Projekts verwendet, um Salz und andere Verunreinigungen zu entfernen, die die Haftung beeintr\u00e4chtigen k\u00f6nnten.  <\/p>\n<h5><\/h5>\n<p>Mit dem Hydrodemolition-Roboter, der mit 1.000 bar (15.000 psi) arbeitet, und zwei Mitarbeitern entfernte Asia Waterjet Equipment innerhalb von Tagen 10 Kubikmeter (13 cubic yards) schlechten Beton in einer Tiefe von 150-250 Millimetern (6-10 inches).<\/p>\n<h5><\/h5>\n<p>&#8220;Mit dem Aquajet Aqua Cutter konnten wir die Produktivit\u00e4t so weit steigern, dass die Bauarbeiten wieder im Zeitplan lagen&#8221;, sagte Parkhill. &#8220;Ohne Hydrodemolition h\u00e4tte CLJV das nicht geschafft.&#8221; <\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/aquajet.se\/bed\/uploads\/2021\/02\/aquajet_awe_filippinerna-bridge-repair_1024-6.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-9537\" src=\"https:\/\/aquajet.se\/bed\/uploads\/2021\/02\/aquajet_awe_filippinerna-bridge-repair_1024-6-700x525.jpg\" alt=\"No matter the project \u2014 from a simple structure to a massive, multi-million-dollar bridge system \u2014 efficient construction requires thorough planning. But, even with flawless logistics, projects can run into challenges that put deadlines in jeopardy. Construction is currently underway in the Philippines on a massive bridge system connecting Cebu City with Cordova on the southern end of Mactan Island. The 8.5-kilometer (5.3-mile) Cebu-Cordova Link Expressway, slated for completion in 2021, will span the Mactan Channel with 51-meter (167-feet) navigational clearance for shipping vessels. It promises to ease congestion between Cebu and Mactan and boost economic activities throughout the region by providing additional access to the island and the Mactan-Cebu International Airport for an estimated 50,000 vehicles a day. As expected, the construction \u2014 one of the largest infrastructure projects in the country \u2014 relies on a carefully choreographed plan of simultaneous operations to meet strict deadlines. Expert logistics allow crews to avoid many hurdles; however, unforeseen challenges can still arise. When a bad batch of concrete threatened to derail progress on one of the bridge\u2019s first pilons, project managers needed a creative solution that could quickly remove the poor-quality concrete without damaging the rebar or putting the project behind schedule. Hydrodemolition was the only process with the precision and productivity to keep the project on track. Cebu Link Joint Venture (CLJV) contacted Singapore-based Asia Waterjet Equipment, the region\u2019s premier Hydrodemolition experts. Access and site conditions presented quite a challenge, but with decades of experience in some of the most hazardous applications, Asia Waterjet Equipment was more than up to the task. With the clock ticking and monsoon season in full swing, the team arrived onsite with an Aquajet Aqua Cutter 710V Hydrodemolition robot and Jetstream HP Waterjetting Pump. Passion for Problem Solving In the early 1990s, Asia Waterjet Equipment\u2019s founders were part of the brave crews tasked with containing oil wells in Kuwait that were destroyed during the Persian Gulf War. Their experience helped avert a huge environmental crisis. They remained in the Middle East, eventually founding Asia Waterjet Equipment in 2006, bringing high-pressure water jetting and robotic Hydrodemolition to the Middle East and South East Asia. Now, with offices in Dubai, Abu Dhabi, Saudi Arabia, Bahrain and Singapore and a strong presence and partnerships throughout these territories, the company is known for creative problem solving \u2014 delivering innovative cutting and cleaning solutions for hazardous areas or difficult to pump products in petrochemical, wastewater, mining, construction and other industries. They also offer a range of robotic solutions to help customers protect employees and perform beyond expectations. \u201cOur focus has always been providing the cutting-edge tools to make challenging applications safer and more efficient,\u201d said Chris Parkhill, Asia Waterjet Equipment Sales Director for Southeast Asia. \u201cFrom the very beginning, we\u2019ve been involved in some of the most hazardous operations out there. We understand the demands and dangers, which is why we partner with industry-leading equipment manufacturers for robust solutions that maximize safety and productivity.\u201d Pairing the right tools with experienced team members who bring a wealth of industry knowledge and a deep understanding of local markets to each project has earned Asia Waterjet Equipment a reputation for high-quality results. In emerging markets, such as the Philippines, where the demands of multi-million-dollar projects have become a proving ground for newer, more efficient technologies, this expertise puts the company at the forefront. \u201cFrom North Africa to South East Asia, we cover a lot of ground,\u201d Parkhill said. \u201cBut being able to meet the contractor where they are is key to a successful solution. Working with CLJV, there were a number of challenges we had to overcome to keep the project on track. Hydrodemolition was the best solution and Aquajet was the best tool for the job.\u201d Troubled Water Access was the primary problem. CLJV was conducting construction on several bridge pilons simultaneously. To minimize disruptions to the local community, the project\u2019s primary staging area, as well as the initial pilon, were only accessible from the coast. This meant the concrete had to be mixed 2.5 kilometers (1.6 miles) down the coast then transported by barge to the jobsite. From there, the barge was grounded, and the trucks disembarked directly onto the beach. The pilon was 30 meters (98 feet) inland. Overall, the transportation delay had no negative impacts on the concrete, and the 16-by-14-meter (52.5-by-45.9-foot) pilon quickly grew to 4 meters (13 feet) tall. However, a complication with a single delivery threatened to throw the entire project behind schedule and over budget. \u201cWhen you are working with concrete, sometimes things don\u2019t go to plan,\u201d Parkhill said. \u201cIt\u2019s a delicate equation, after all, and even a slight miscalculation can ruin the mixture. Unfortunately, when that happens, there isn\u2019t an easy fix.\u201d Crews knew there was a problem immediately. The concrete was already setting as they pumped. Vibrating and other correctional methods failed, and the pour was ultimately unsuccessful. Even worse, the concrete fell 350 millimeters (13.8 inches) short, leaving a mesh of exposed rebar. For CLJV and Asia Waterjet Equipment, the challenges were adding up, making for a very difficult repair. The pilon was nearly complete. While CLJV had budgeted time and money for small complications, it could not afford to demolish the whole pilon and start over. Crews with handheld breakers or excavators could remove the poor-quality concrete, but only by destroying the rebar. They would have to cut the exposed rebar at the top of the pilon to access the concrete a foot below. More rebar would be damaged as the poor-quality concrete was removed, and microfractures from the vibration of jackhammers or excavators would weaken the remaining concrete, jeopardizing the pilon\u2019s integrity. \u201cThere was no option; the rebar and existing good concrete had to be protected,\u201d Parkhill said. \u201cIf CLJV went with traditional demolition methods, they\u2019d have to open, pry apart where possible or cut the rebar and manually jack hammer out the bad concrete. There\u2019s no guarantee a man using a jack hammer could gauge what\u2019s good and what\u2019s bad, so they\u2019d end up removing extra. Then they\u2019d have to bend the rebar back into place without breaking it, or weld or cut new threads and join with it threaded couplers. It would add weeks to the project and a significant cost to the budget. They simply couldn\u2019t afford it.\u201d Asia Waterjet Equipment knew Hydrodemolition was the only solution. The non-intrusive method uses high-pressure water jets as powerful as 40,000 psi manipulated by an automated robot to remove layers of deteriorated and damaged concrete. The high-pressure water exceeds the strength of the concrete to widen existing pores and microcracks, breaking it apart in a controlled manner. Unlike other mechanical methods, Hydrodemolition is impact free, eliminating the vibrations that cause microfractures. Additionally, the method meets European Standards EN 1504 and provides a superior bonding surface for new concrete. The Aqua Cutter 710V\u2019s high-pressure water jet leaves a rough, irregular profile after removing the initial layer of concrete that results in a better bonding strength. The robot also cleans and descales the exposed rebar and removes non-visible contaminants such as dirt, mud, foundation mud, salts, chlorides and sulfates. Building Bridges Productivity was also a concern. With simultaneous construction continuing on several other pilons in the area, crews needed to remove the poor-quality concrete and complete repairs quickly \u2014 with minimal labor. With the ability to complete concrete removal tasks up to 25 times faster than a hand lance, the Aqua Cutter provided the necessary solution to keep the project on schedule. Asia Waterjet Equipment brought in Aquajet Special Application Manager Kjell Isaksson to support the operation. \u201cThere were a lot of variables and no room for error,\u201d Parkhill said. \u201cTo minimize the risk of delays, we decided it would be best to have an Aquajet specialist on site.\u201d Like the cement trucks, the Aqua Cutter and all support equipment, including a high-pressure waterjet power pack with a 4200 series Jetstream pump, had to access the site from the Mactan Chanel. Proximity to the water and the frequent, heavy rains of monsoon season made ground conditions difficult. However, since the Aqua Cutter is self-propelled with tracks, the uneven, muddy terrain presented no problems for Asia Waterjet Equipment. This minimized necessary site preparations and helped accelerate repairs. Crossing the Bridge to Success This mobility was also necessary for tackling the demolition itself. Once lifted the 4 meters (13 feet) onto the pile cap by a crane, the Aqua Cutter was able to easily maneuver over the rebar. The high-pressure pump was setup 7 meters (23 feet) away and connected to the Hydrodemolition robot by a high-pressure hose. To help reduce cost and increase production, Asia Waterjet Equipment opted to use seawater for the majority of the demolition rather than bring in fresh water. The company continually filled two 20-cubic meter (5,283 gallon) night tanks directly from the Mactan Chanel. Fresh water was only used during the last two days of the project to remove salt and other impurities that could impact bonding. Using the Hydrodemolition robot, operating at 1,000 bar (15,000 psi), and two employees, Asia Waterjet Equipment removed 10 cubic meters (13 cubic yards) of poor-quality concrete at a depth of 150-250 millimeters (6-10 inches) in days. \u201cWith the Aquajet Aqua Cutter, we increased productivity to a point where construction was back on schedule,\u201d Parkhill said. \u201cWithout Hydrodemolition, there\u2019s no way CLJV would have been able to do that.\u201d The Future of Hydrodemolition While construction on the bridge system continues, Asia Waterjet Equipment is already on to the next challenge. \u201cConstruction in Southeast Asia is changing,\u201d Parkhill said. \u201cRobotic processes like Hydrodemolition are proving you can have productivity and safety. With innovative partners like Aquajet, Asia Waterjet Equipment is playing a leading role in facilitating that change.\u201d\" width=\"700\" height=\"525\"><\/a><\/p>\n<p><em>Mit dem Hydrodemolition-Roboter, der mit 1.000 bar (15.000 psi) arbeitet, und zwei Mitarbeitern entfernte Asia Waterjet Equipment 10 Kubikmeter (13 cubic yards) minderwertigen Beton in einer Tiefe von 150-250 Millimetern (6-10 inches).<\/em><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Die Zukunft der Hydrodemolition<\/strong><\/p>\n<p>W\u00e4hrend der Bau des Br\u00fcckensystems weitergeht, ist Asia Waterjet Equipment bereits mit der n\u00e4chsten Herausforderung besch\u00e4ftigt.<\/p>\n<h5><\/h5>\n<p>&#8220;Das Bauwesen in S\u00fcdostasien ver\u00e4ndert sich&#8221;, sagte Parkhill. &#8220;Roboterverfahren wie Hydrodemolition beweisen, dass man Produktivit\u00e4t <em>und<\/em> Sicherheit haben kann. Mit innovativen Partnern wie Aquajet spielt Asia Waterjet Equipment eine f\u00fchrende Rolle bei der Erleichterung dieses Wandels.&#8221;  <\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<hr>\n<h3>Kurze Fakten<\/h3>\n<p><strong>Lage:<\/strong><br \/>\nEin massives Br\u00fcckensystem, das Cebu City mit Cordova am s\u00fcdlichen Ende der Insel Mactan auf den Philippinen verbindet.<\/p>\n<p><strong>Br\u00fcckenprojekt:<\/strong><br \/>\nDer 8,5 Kilometer (5,3 Meilen) lange Cebu-Cordova Link Expressway, dessen Fertigstellung f\u00fcr 2021 geplant ist, wird den Mactan-Kanal mit einer Durchfahrtsh\u00f6he von 51 Metern (167 Fu\u00df) f\u00fcr Schiffe \u00fcberspannen.<\/p>\n<p><strong>Hydrodemolition-Projekt:<\/strong><br \/>\nSelektive Betonentfernung von minderwertigem Beton ohne Besch\u00e4digung der Bewehrung oder Verz\u00f6gerung des Projekts.<\/p>\n<p><strong>Abgerissenes Material:<\/strong><br \/>\n10 Kubikmeter (13 cubic yards) minderwertiger Beton in einer Tiefe von 150-250 Millimetern (6-10 inches).<\/p>\n<p><strong>Ausr\u00fcstung:<\/strong> Aqua Cutter 710V.<\/p>\n<p>&nbsp;<\/p>\n<hr>\n<p>&nbsp;<\/p>\n<h3>Mehr Informationen<\/h3>\n<p><a href=\"https:\/\/aquajet.se\/de\/products\/aqua-cutter-710v\/\">Aqua Cutter 710V<\/a><\/p>\n<p><a href=\"https:\/\/aquajet.se\/de\/hydrodemolition\/\">Hydrodemolition<\/a><\/p>\n<p><a href=\"https:\/\/aquajet.se\/contact-aquajet\/global-dealer-network-2\/\">Aquajet weltweites H\u00e4ndlernetz<\/a><\/p>\n<p>&nbsp;<\/p>\n<hr>\n<p>&nbsp;<\/p>\n<h3>Druckf\u00e4higes pdf<\/h3>\n<p><a href=\"https:\/\/aquajet.se\/bed\/uploads\/2021\/02\/aquajet-on-location__aquajets-Innovative-Robotic-Solution-Provides-Productivity-for-Philippine-Bridge-Project.pdf\">Aquajet vor Ort &#8211; Die innovative Roboterl\u00f6sung von Aquajet sorgt f\u00fcr Produktivit\u00e4t bei einem philippinischen Br\u00fcckenprojekt<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"featured_media":0,"template":"","case_category":[246],"class_list":["post-41154","jobreport","type-jobreport","status-publish","hentry","case_category-strasen-und-brucken"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.2 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Hydrodemolition steigert Produktivit\u00e4t bei Br\u00fcckenprojekt auf den Philippinen - Aquajet<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/aquajet.se\/de\/jobreport\/hydrodemolition-steigert-produktivitaet-bei-brueckenprojekt-auf-den-philippinen\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hydrodemolition steigert Produktivit\u00e4t bei Br\u00fcckenprojekt auf den Philippinen\" \/>\n<meta property=\"og:description\" content=\"Ganz gleich, um welches Projekt es sich handelt &#8211; von einem einfachen Bauwerk bis hin zu einem massiven, mehrere Millionen Dollar teuren Br\u00fcckensystem &#8211; eine effiziente Konstruktion erfordert eine gr\u00fcndliche Planung. 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