Bouygues Construction has signed a global innovation partnership involving ACT, Ecocem's scalable low-carbon cement technology.

The partnership marks a pivotal step in their shared commitment to significantly reducing the carbon footprint of construction projects.

Following thorough laboratory and rigorous full-scale testing by Bouygues Construction's R&D and Innovation team in collaboration with Ecocem, the goal is to advocate and facilitate the use of Ecocem's ACT cement technology in Bouygues Construction's projects.

The partnership is focused on three key areas designed to independently test, evaluate and validate Ecocem's ACT technology:

• Independent laboratory testing: Bouygues Construction will conduct a comprehensive testing program at its COFRAC (French Committee for Accreditation) accredited Materials Engineering Lab (Laboratoire Ingénierie Matériaux) to evaluate the performance of ACT technology under laboratory conditions.


• Initial full scale field testing: Structural concrete walls will be built at Bouygues Construction’s Scale One® facilities in Chilly-Mazarin, France, during both winter and summer conditions, starting in early 2025. The walls will be monitored using instrumentation to ensure thorough testing on all aspects of preparation, handling, pouring, maturity measurements, and early formwork removal of the concrete. The process will be overseen by Bouygues Construction’s on-site production team and the Materials Engineering Lab.

• Full-scale mock-up construction: After successful initial full-scale field testing, a full-scale model, including all structural components (slabs, walls, columns, beams), will be constructed by Scale One® under typical site conditions. This will allow for full evaluation of the in-situ use of ACT technology, in parallel with the completion of the ACT technology certification process by Ecocem.

Edward Woods, Head of R&D and Innovation at Bouygues Construction said: "At Bouygues Construction, our focus is on 'Building for Life', and essential to that is the need to address the critical imperatives of the environmental transition. We are committed to making construction sustainable and less resource-intensive. Any low carbon solution deployed by Bouygues Construction must deliver the required concrete performance, using standard working practice, and must be globally scalable and cost efficient. Together with Ecocem, we share a focus on and commitment to innovation and finding scalable solutions that drive down emissions at speed. Validating ACT technology in a variety of applications and conditions, with the ambition of incorporating it into our projects is an integral part of Bouygues Construction's R&D and Innovation team's remit in tandem with Bouygues Construction's Procurement department."