Industrial Bridge, Chile

Posted on November 26, 2024November 26, 2024 by Kansuda Visesthanakorn

Industrial Bridge, Chile

Dextra’s engineering expertise and innovative products played a pivotal role in the construction of the Industrial Bridge in Chile. As part of the project, Dextra supplied its Rolltec mechanical splice system, ensuring robust and reliable rebar connections. Additionally, headed bars were provided to enhance anchorage performance, a critical requirement for the bridge’s structural integrity.

The project also utilized Sonitec crosshole sonic logging (CSL) testing tubes, facilitating thorough integrity testing of concrete piles, ensuring long-term safety and performance. These advanced solutions reflect Dextra’s commitment to supporting complex infrastructure projects with high-quality, tailored products.

The Industrial Bridge stands as a testament to modern engineering and showcases the critical role Dextra’s solutions play in shaping resilient and efficient infrastructure worldwide.

Tanger Med 2 Port

Posted on November 6, 2022March 14, 2024 by Sir Gwi

Tanger Med 2 Port

Tanger Med 2 is the expansion of Tanger Med, a multipurpose deep-water sea port located in a few kilometers East from Tangier, in Morocco, facing Gibraltar.

The port expansion aims to increase yearly capacity of the port, the largest in Africa, by 5.2 million containers.

For this large infrastructure project, Dextra supporter contractor Bouygues with a rebar splicing solution for the reinforcement of the caissons.

Dextra supplied its Rolltec solution, which is AFCAB-cerfified, a requirement on this project. Two Rolltec machines were installed to support the threading activities: 360,000 threads in total (180,000 Rolltec couplers).

Couplers were use in the reinforcement of the caisson, which were as tall as 20 to 24 meters. Couplers provided:

Temporary openings to solve congestion issues in the reinforcement within the caisson. Rebar couplers allow to create a safe passage for men and equipment during installation phase.
Horizontal wall-to-slab connections (from the inside of the caisson perimeter to slab). For this application, couplers were left pending, allowing the slip form to go up.

For more information and additional applications examples on this project, please refer to our dedicated Case Study.

Download case study

Belo Monte Dam

Posted on November 4, 2022November 26, 2024 by Sir Gwi

Belo Monte Dam

Belo Monte Dam is a hydroelectric dam set up on the Xingu River, in the state of Pará, North of Brazil. It will become at its inauguration the second largest dam in Brazil and just the fourth largest dam in the world, with a total maximum capacity of 11,233 MW.

For this major dam project, Dextra Do Brasil continuously delivered to contractors its Rolltec mechanical rebar splicing solution between 2011 and 2016.

Rolltec is the most popular rebar splicing solution in Brazil, providing a competitive alternative to lap splices.

A total of 250,000 couplers have been used on the Belo Monte dam, used across all parts of the structure.

The rebar preparation is supported by a unique light equipment, operated by a single operator.

The Rolltec machine is relatively easy to transport and convenient to install even on most remote locations such as dam construction sites.

Causeway across Kuwait Bay

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

Causeway across Kuwait Bay (Jaber Causeway)

The Main Causeway across the Kuwait Bay is a 36-km long project currently being built North of Kuwait City. It will ultimately be connected to Doha Link, another sea link project West 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 Main Causeway Across Kuwait Bay stretches North of Kuwait City. It is expected that the link will greatly contribute to the development of Northern part of Kuwait. To achieve that, the Causeway will literally cut across Kuwait Bay with a 27-km sea link.

Bridge pylons and girders

For the visible part of the sea link, Dextra worked with contractor Hyundai to offer high tensile post tensioning bar solutions.

Dextra Smooth PT Bar Grade 835/1050s were used all along the sea link for the connection of the precast girders together.

For part of the sea link which is topped by metallic cable-stayed structure. Higher performance bars in Grade 1050/1200 were used to offer a vertical anchoring point between the pylon and the reinforcement of the pile. PT Bars were delivered with a full corrosion protection accessory set by Dextra so that the bars will resists the marine conditions.

Crosshole Sonic Logging tubes

For the concrete integrity testing of the onshore and offshore foundation piles, Dextra supplied around 400,000 linear meters of Sonitec tubes, which are easy to set up and reconnect, without need of welding, which significantly increases the productivity of the pile assemblies.

Once installed, the tubes are firmly in place, supporting without issue the cage lifting and handling.

Tag: rolltec