Hoffmann Green, GCC and Néolithe combine their expertise to produce concrete with a very low carbon footprint
In Marseilles, the three partners have just poured an invert for a very low carbon footprint fuel loading slab for RTM (Régie des Transports Métropolitains). The H-UKR concrete used incorporates 20% aggregate obtained by accelerated fossilisation of non-recyclable building site waste manufactured by Néolithe. This invert will be used by GCC’s engineering and technical department to take precise measurements in terms of decarbonation and durability compared with the use of conventional concrete.
While the use of this concrete does not change anything in terms of use, it does change everything in terms of carbon footprint: 62 kg CO2eq/m3 for the H-UKR formulation + 20% Anthropocite compared with 167 kg for traditional CEM II/A concrete!
In concrete terms, GCC cast two identical slabs in order to establish its comparisons:
- A traditionally formulated concrete slab
- A slab with 370 kg/m3 of Hoffmann 0% decarbonated cement clinker combined with aggregates derived from the fossilisation of Neolith waste (20%) in addition to the 80% of standard aggregates.
“Since 2020, our collaboration with GCC has gone from strength to strength, and this project is clear proof of that! Together, with visionary partners like Néolithe and RTM, we are determined to revolutionise construction by decarbonising it. Thanks to Néolithe’s innovative recycled aggregates, our ambition is clear: to supply the most carbon-free concrete in the world today,” says Julien Blanchard, Chairman of Hoffmann Green’s Management Board.