June 14th, 2021
EXEGY: Soletanche Bachy pours its first ultra-low carbon concrete foundation barrette
The Le Havre port worksite – fertile ground for technical feats! The first trail barrette using EXEGY foundation ultra-low carbon concrete, based on alkali activated slag was poured by Le Havre phase III of the Port 2000 worksite and materials teams.
On 9 March 2021, teams from the Port of Le Havre built ultra-low carbon concrete barrette at a depth of 17m, using a binder exclusively composed of blast furnace slag activated with sodium carbonate (concrete with a reduced carbon footprint of 71kg CO2 eq/m3). The mix design, produced specifically for this worksite, is the result of collaboration between the VINCI Construction laboratory and the Soletanche Bachy materials department, in partnership with Ecocem. As well as a local partner, Béton Solutions Mobiles, which is open to this type of approach, and a loyal, confident customer, which gave us the opportunity to validate that our quality and robustness requirements for concrete foundations could be fully met under real-life conditions using cements with a very high slag content
And their confidence was rewarded!
This is not the first time that the Grand Port Maritime du Havre has entrusted Soletanche Bachy teams with reducing its structures’ carbon footprint. Other tests have been carried out in the past, but this remains a first for the Group, as well as a first for the VINCI group and the construction industry.
Ce plot d’essai est un nouvel exemple de l’ambition de Soletanche Bachy vers l’emploi de matériaux à plus faible empreinte carbone. L’entreprise a développé une expertise matériaux qui permet d’assurer un déploiement optimisé des approches béton bas carbone que ce soit en France ou à l’étranger. Nous avons maintenant une expérience sur laquelle nous pouvons nous appuyer et que nous formalisons notamment dans l’offre EXEGY By Soletanche Bachy. Une offre de coulis et de bétons de fondation en béton bas carbone adaptée au besoin du projet.
