Cebu-Cordova Link Expressway (CCLEX), colossal bridge in the Philippines

Posted on November 5, 2022March 14, 2024 by Sir Gwi

Cebu-Cordova Link Expressway (CCLEX), colossal bridge in the Philippines

Cebu – Cordova Link Expressway is one of the biggest infrastructure projects being undertaken in the Philippines. The project features a combination of a causeway, a gigantic cable-stayed bridge that will cross the navigable zone of the Cebu Strait, two viaducts and four low height bridges, as well as roadways and pedestrian walkways.
The CCLEX Project aims to provide better transport facilities while reducing traffic congestion in the region, as well as to improve connectivity within Cebu City. It will also intended to support Cordova’s economic growth, as the expressway will position the City as the gateway for island tourism.
Also known as Third Mandaue – Mactan Bridge, the official ground-breaking of the toll bridge was in 2017, with the completion being scheduled for 2022.

Cable-stayed bridge to connect Cebu and Mactan Island

After its completion, the Cebu-Cordova Expressway will link Cebu mainland and Mactan Island through Cordova town. The 8.5 km-long toll bridge will feature two lanes that will serve up to 40,000 vehicles a day. The main bridge will be built with a 400 meter cable-stayed main span, with 60-meter navigation clearance, allowing ships to easily navigate through the expressway.
The main bridge of the expressway will connect Guadalupe River to the Shell Island in Cordova, while its colossal viaducts will link it to the causeway and road networks to Mactan.

Dextra Bartec, reinforcing solutions for the construction of Cebu-Cordova Bridge

The design and the construction of this megaproject is undertaken by the Cebu Link Joint Venture (CLJV). The CLJV is a joint-venture partnership between the Spain-based Acciona Construccion S.A. and the Philippines-based First Balfour Inc. and D.M. Consunji Inc.
For the reinforcement of the colossal expressway’s foundations, the contractor has chosen Dextra’s well-known rebar splicing solution Bartec. More than 35,000 units of Standard, Bridging, as well as Transition splices of steel grade 75, both in diameter 40 and 50, have been applied to the foundations’ piling cages as of July 2018. Moreover, to provide better end anchorages in congested areas, the CLJV opted for Dextra Bartec headed bars, which are also known as end anchors. Bartec end anchors are a convenient alternative to hooked bars, traditionally used for anchoring.

For more information about rebar coupler availability in Philippines, please contact our Bangkok office.

Photo credit: https://cclex.com.ph/updates/

West Gate Tunnel

Posted on November 5, 2022March 16, 2024 by Sir Gwi

West Gate Tunnel

The West Gate Tunnel Project will deliver a vital alternative to the West Gate Bridge, providing a much needed second river crossing, quicker and safer journeys, and remove thousands of trucks from residential streets.

The project will link the West Gate Freeway at Yarraville to the Port of Melbourne and CityLink at the Docklands via twin tunnels beneath Yarraville and an elevated Footscray Road.

The elevated road includes 300 piles of variable height. The piles have been precast in multiple segments, close to the site. Vertical post-tensioning bars assembly together all the segments of each pile.

This construction method of piles is more and more common but requires an impeccable preparation, both in terms of method statement and products definition. Each detail is fundamental for the success of the installation.

Dextra supplied Freyssinet with more than 1,000 tons of Freyssibar+ systems, grade 930/1080 MPa, with nominal diameters of 72mm and 55mm, and 7,500 anchorages for vertical permanent application.

With a close cooperation between DEXTRA, Freyssinet back-office (Technical Department and Freyssinet products company) and the job site staff (Freyssinet Major Project and Freyssinet Australia), the post-tensioning system has been perfectly adapted to the needs of the project.

The bar diameters, steel grade and the design of the anchorages have been validated through qualification tests according to Australian Standards, demonstrating the performance of the system.

This bar system can be used for post tensioning, prestressed ground anchors and any application involving temporary or permanent tie-rods, lifting, suspension, prestressed splices, etc.

Major project construction started in January 2018.

Bar-Boljare highway – Four viaducts

Posted on November 5, 2022March 16, 2024 by Sir Gwi

Bar-Boljare highway – Four viaducts

The Bar-Boljare Highway Project is a key infrastructure project led by the Ministry of Transportation and Maritime Affairs of Montenegro. It aims at improving the connections within the country and also between Montenegro and the rest of Europe in order to boost the country’s economy and tourism.

The project, built by China Road and Bridge Corporation (CRBC), embodies a new successful example of the cooperation between China and Eastern Europe. The new 2×2-ways highway spans over 40 km. It is built in challenging terrains and yet satisfies both EU & Montenegro standards of road infrastructure. Its schedule is ambitious too: both roads and viaducts should be built in under 4 years.

For the Bar-Boljare Highway Project, Dextra supplied its Bartec rebar coupler solution, used the splicing of rebar in the piles of the four viaducts. Dextra Bartec splicing solution was chosen on that project for its compliance with ISO 15835 S2, which defines rebar coupler and reinforcement to be resistant to violent earthquakes conditions. A total of 230,000 Bartec rebar couplers have been supplied to CRBC.

Doha Link (Jaber Causeway)

Posted on November 5, 2022March 14, 2024 by Sir Gwi

Doha Link (Jaber Causeway)

Doha Link is a marine bridge project currently being built West of Kuwait City. It will ultimately be connected to Main Causeway Across Kuwait Bay, another sea link project North of Kuwait City, which connected make together the Jaber Causeway sea link, one of the largest civil engineering project ever built in the Middle East.

The Doha Link stretches West of Kuwait City, It will ultimately solve traffic congestion and offer a direct itinerary thanks to a 7.7km bridge structure built on shallow waters across the Kuwait Bay.

Rebar splicing solution

Dextra has been involved in the early stage of the construction project to provide a technical solution for the splicing of the very large rebar cages making the onshore and offshore foundation piles.

Rolltec® couplers for large diameter rebar (32, 36 and 40mm) were used for the connection of cages and piers. Two grades of rebar are used across the project: ASTM Grade 60 and Grade 80. Rolltec being compatible by design with the higher ASTM Grade 80, same couplers may be used on all applications, simplifying stock keeping.

In addition, smaller diameters couplers for rebar 12mm and 16mm were used for the superstructure and the footing of light poles

One of the main advantages of Rolltec for remote projects its very light machine set up. Rolltec is supported by a single one-man machine, offering a high level of productivity. Because the equipment is relatively small and the rebar preparation efforts were taking place simultaneously on both sides of the sea link construction, Dextra dispatched up to 4 machines on each side of the project to support the piling efforts.

Sonitec tube solution

With large piles of 2.5m diameter and 60m depth in average, it was compulsory for GS E&C to conduct sonic logging tests to examine the integrity of concrete piles, requiring to install 8 tubes in each cage.

To achieve very long tube length and optimize cage preparation output, Dextra Sonitec was the preferred choice of the contractor. Thanks to its light weight and unique Push-Fit® connection feature. Sonitec provides enough flexibility during the cage construction, lifting and assembly of the cage, and remove needs for additional time-consuming welding operations.

Expansion of Sha Tau Kok Sewage Treatment Works Phase 1

Posted on November 4, 2022August 2, 2024 by Sir Gwi

Expansion of Sha Tau Kok Sewage Treatment Works Phase 1

The Sha Tau Kok Sewage Treatment Works Phase 1 Expansion project stands as a testament to Hong Kong’s commitment to environmental sustainability and efficient wastewater management. It aims to increase the treatment capacity, ensuring that the city’s sewage is processed efficiently and in an environmentally responsible manner. A remarkable feature of this expansion is the use of Groutec S couplers to seamlessly link precast columns of the building.

Groutec is designed for the efficient and easy installation of precast concrete elements, reducing construction time and labor costs while providing full structural connection. For this project, Groutec S diameter 32mm precast couplers have been used to connect precast columns in vertical applications. The Groutec coupler is installed in the bottom element, and then grout is poured by gravity directly into the coupler cavity. This process ensures the structural integrity and longevity of the facility.

Fujairah Port Service Harbour Marine Works & Buildings

Posted on November 4, 2022February 6, 2024 by Sir Gwi

Fujairah Port Service Harbour Marine Works & Buildings

Dextra involved in the expansion of Fujairah Port in 2007, supplying more than a thousand tons of marine tie bar systems for the construction of the new Oil Terminal 2 and South Breakwater Berths.

In 2017, Dextra took part in the service harbour construction project. The project includes the construction of the service harbor building, new quay walls, and marine works.

Marine tie bars totaling about 380 tons were provided for the anchoring of the quay walls. The high-performance grade 700 bars, which enable a higher degree of performance for comparatively smaller diameters, were chosen to ease transportation and installation at site.

For the new Service Harbour in the Port of Fujairah, two breakwaters are being built: the 800-meter-long northern breakwater and the 1.2-kilometer-long southern breakwater, which features varied rock grades.

Source of images: https://overseas-ast.com/projects/fujairah-port-service-harbour-marine-works-buildings/

Aberdeen Harbour Expansion

Posted on November 4, 2022February 6, 2024 by Sir Gwi

Aberdeen Harbour Expansion

Aberdeen Harbour is one of the oldest and busiest ports in the UK.

It serves as a hub for the marine operations of oil and gas industry in north-west Europe, offering links to 40 countries.

The expansion project of the new South Harbour aims to increase and diversify the existing capabilities. Combined with the current port, Aberdeen Harbour will soon become the largest port in Scotland in terms of berthage.

The Aberdeen Harbour expansion mainly involved dredging within Nigg Bay to construct two breakwaters and develop quayside on the north and west sides of the bay.

Dextra offered a convenient solution for concrete integrity testing of the 35-45m depth bored piles that support the harbour structure. Both 50 and 100mm tubes were used by the contractor: Dragados, with 100mm used for inclinometry and coring purpose.

After drilling a vertical hole into the soil, Sonitec sonic tubes were equipped with the reinforcement cages and lowered into the hole, the latter is then filled with concrete, and the sonic logging testing is subsequently performed.

Dextra Sonitec system is designed to facilitate the assembly and installation of long tube lengths in reinforcement cages with its enlarged bell-mouth that allows the seamless connection of the tubes. The system complies with ASTM D6760, the standard method for integrity testing by ultrasonic cross-hole testing.

This port expansion upscales opportunities for existing customers, and opens the door to new markets, future-proofing the harbour’s ability to support the economic prosperity of the city and region.

Elevating Sokhna Port Through Innovative Marine Infrastructure Solutions

Posted on November 4, 2022February 6, 2024 by Sir Gwi

Elevating Sokhna Port Through Innovative Marine Infrastructure Solutions

Sokhna Port’s expansion project is reshaping global trade dynamics, with a 480-meter quay wall and 18-meter draft for Basin 2. This venture not only amplifies Egypt’s maritime prowess but also spotlights Dextra’s role in providing innovative marine infrastructure solutions.

Located on the Red Sea, Sokhna Port is a linchpin of international trade due to its proximity to the Suez Canal. Its extension in Basin 2 is a strategic move to cater to surging trade demands and optimize connectivity between Asia, Europe, and Africa.

The heart of the expansion lies in the impressive quay wall, boasting a 480-meter length and 18-meter draft. Dextra demonstrated its expertise by providing 265 tons of marine tie bars, grade 700, and ball cages, for the construction of the DP World terminal. These components enhance structural integrity and durability in the face of challenges posed by the marine environment.

Reconstruction of Pak Kok Pier on Lamma Island

Posted on November 4, 2022February 6, 2024 by Sir Gwi

Reconstruction of Pak Kok Pier on Lamma Island

The Reconstruction of Pak Kok Pier on Lamma Island is a project to reconstruct the existing pier located at the northern tip of Lamma Island in Hong Kong, including provision of ancillary facilities such as roof cover, lighting system, benches, and solar panels, etc. and environmental monitoring and mitigation measures.

Due to the primitive design of the Pier and the occasional rough sea condition, the berthing condition of the Pier is unsatisfactory, causing inconvenience to passengers, especially for kids and the elderly, when boarding and alighting. The project aims to improve the berthing condition.

Dextra delivered more than 600 meters of GFRP (Glass Fiber Reinforced Polymer) rebars in straight and bending shapes for the reinforcement of the ferry pier structure.

Dextra GFRP rebar is a corrosion-free alternative to steel rebar. The continuous exposure to seawater and contaminants made it the perfect solution to substitute traditional steel rebars.

Source of images: https://www.devb.gov.hk/filemanager/en/content_1044/20170813_07.html, https://www.ceddreport201519.gov.hk/en/projects-services-detail/portworks

Mahatma Gandhi Setu Rehabilitation

Posted on November 4, 2022February 6, 2024 by Sir Gwi

Mahatma Gandhi Setu Rehabilitation

The Mahatma Gandhi Setu (also known as Gandhi Setu or Ganga Setu) is a bridge that spans the Ganges River in Bihar, India, and connects Patna and Hajipur. It is India’s third-longest river bridge, with a length of 5,750 meters.

The bridge had experienced considerable traffic congestion in recent decades as a result of an increase in the number of cars crossing it, which had caused it to operate at capacity and overburden the structure. It required replacement of the concrete superstructure with steel framework.

Dextra participated in this renovation project by supplying RepairGrip couplers for the connection of old pier and new pier caps.

Fully threaded bars were also provided for various applications during the demolition of the old superstructure.

The renovated western flank was opened to public on July 31, 2020.

Category: Transport