Massive carbon reduction in concrete to make it a material of the future
With EXEGY® solutions, VINCI Construction minimises the carbon footprint of your structures.
Context
Reducing the carbon footprint of concrete
Decarbonising the construction sector requires the rollout of low-carbon concrete formulations that replace all or part of the traditional, highly emissive cement.
5%
- Globally, concrete production is responsible for 5% of greenhouse gas emissions.
Solutions
Our low carbon solutions
Discover the technical standards defining low carbon, very low carbon, and ultra low carbon concrete according to their strength class and the carbon footprint of concretes in kg CO2 equivalent/m3.
Our formulations can reduce up to 70% of CO2 emissions compared to traditional concretes.
- Compressive strength class of concrete according to standard EN 206/CN
emission lower than
emission lower than
200kgCO2/m3
emission lower than
150kgCO2/m3
emission lower than
100kgCO2/m3
emission lower than
emission lower than
240kgCO2/m3
emission lower than
120kgCO2/m3
emission lower than
120kgCO2/m3
emission lower than
emission lower than
280kgCO2/m3
emission lower than
200kgCO2/m3
emission lower than
140kgCO2/m3
Expertise
Why choose EXEGY®’s low carbon solutions
EXEGY® is a complete construction solution that aims to generalise the use of low-carbon concretes on construction sites using optimised technical and environmental solutions at competitive prices.
1/3
Environmental performance
Low carbon concrete formulations with up to 70% CO2 reduction for an equivalent technical performance.
2/3
Control of construction solutions
Construction and application methods adapted from design to use.
3/3
Custom support
Support for site teams to facilitate the adoption of these new concretes by adapting materials and equipment if necessary.
Composition
How is low-carbon concrete made?
1/4
Substituting clinker
Cement is the component responsible for 85% of CO2 emissions from concrete. The cause is clinker: the main component of cement. Substituting all or part of the clinker results in low-carbon concrete.
2/4
Substituting clinker
Cement is the component responsible for 85% of CO2 emissions from concrete. The cause is clinker: the main component of cement. Substituting all or part of the clinker results in low-carbon concrete.
3/4
- Reducing CO2 emissions from cement
- Substituting clinker in concrete formulations greatly reduces CO2 emissions from cement. Our EXEGY® solutions provide low, very low and ultra-low carbon concrete.
4/4
- Promoting the circular economy and minerals.
- EXEGY® benefits from VINCI Construction’s know-how in substituting cement with materials from the circular economy (blast furnace slag, fly ash, silica fume). The limited availability of these materials has led EXEGY®’s experts to innovate by developing alternative formulations of low-carbon concrete in which cement is partly substituted by other mineral additions (limestone filler, pozzolan, metakaolins).
EXEGY®’s construction solutions are suitable for all uses in the construction sector and are implemented on all types of structures, both buildings and infrastructure.
Our achievements
Saint-Vulbas (France)
VINCI Construction’s CESAME training centre in Saint-Vulbas, a showcase of its expertise and environmental practices
Launched in the early 2000s, the CESAME network of in-house training centres caters for VINCI Construction employees.
La Celle-Saint-Cloud (France)
I3F residential buildings made using EXEGY® ultra-low-carbon concrete in La Celle-Saint-Cloud
Immobilière 3F (I3F) wanted the project to serve as a shining example of sustainable, low-carbon construction.
Saint-Denis (France)
Universeine: all the floors and slabs for the 2024 Games Athletes’ Village poured using EXEGY® ultra-low and very-low-carbon concrete
What was initially supposed to be a trial covering 30 sq. metres has become an operational reality.
Our environmental ambition: forging a sustainable world
Acting for the climate
EXEGY® solutions are part of the VINCI Group’s environmental ambition, which is to use 90% low-carbon concrete in France and worldwide by 2030.
Measuring the carbon footprint
EXEGY® ensures the transparency and traceability of the carbon footprint of concrete used on sites.
Capitalize on the know-how of experts
Our low-carbon concrete solutions are designed and tested in VINCI Construction’s materials laboratories or co-developed with our EXEGY® partners before being approved and implemented on worksites. The partnership approach, the concrete expertise of VINCI Construction engineers and the know-how of the worksite teams are the foundation of EXEGY® solutions.
