CEMEX contributes low carbon solutions to the spectacular architecture of the Paris Duo Towers
The towers reach 180m high and 39 floors for the first, and 125 m and 28 floors for the second. For this spectacular achievement, CEMEX delivered more than 40,000 m3 of concrete, including low carbon formulations, and removed 42,000 tonnes or spoil materials via its multimodal transport network.
These multi-use skyscrapers presented huge technical challenges to the construction team as they are inclined at an angle of 5° (more than the leaning tower of Pisa) and were built on a very narrow site. The foundations, diaphragm walls and nine basement levels required specialist concrete to enable long six-hour pours and high-quality facings.
Of the 40,000 m3 of ready-mixed concrete supplied from local CEMEX units, 25% was for concrete foundations for diaphragm walls, and 75% for civil engineering and architectural concrete for elevations. The client also required high-performance concrete for pouring a mega-beam supporting all the towers and with an integrated cooling system. The latter was designed and delivered by the Paris Port-Victor production unit. All the concrete was designed with formulations to reduce the building's carbon footprint, in particular for the foundations.
In 2021, 150 m3 of black decorative concrete was pumped for the construction of the terraces of the two towers, while fast-drying anhydrite screed was installed on nearly 2,000 m² of heated floors. In addition, during these three years, thanks to its robust multimodal logistics system, CEMEX will have evacuated almost all of the spoil - nearly 42,000 tonnes.
The strong commitment of CEMEX's technical teams ensured the success of the operation. For a complex project like this, excellent communication between the various CEMEX departments (commercial, technical, production) and the concrete manufacturing teams enabled smooth and consistent concrete deliveries during long days and weekends.
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Notes to Editors:
About CEMEX:
CEMEX is a global construction materials company that is building a better future through sustainable products and solutions. CEMEX is committed to achieving carbon neutrality through relentless innovation and industry-leading research and development. CEMEX is at the forefront of the circular economy in the construction value chain, and is pioneering ways to increase the use of waste and residues as alternative raw materials and fuels in its operations with the use of new technologies.
CEMEX offers cement, ready-mix concrete, aggregates, and urbanization solutions in growing markets around the world, powered by a multinational workforce focused on providing a superior customer experience, enabled by digital technologies.
For media enquiries please contact Sarah Murphy; 07557 319972 or email: sarah.murphy@cemex.com