CIRR Building on A40
ROAD EFFECTS
The yard
Co-combustion ash recovery in low-carbon road binders applied to ground reprocessing: feedback on the CIRR site of the A40.
Under the auspices of the Innovation Roads and Streets Committee (CIRR) and the Cerema, and under the initiative of ATMB, Eiffage Route has implemented its low carbon Flexocim® process, employing a low environmental footprint hydraulic binder developed and patented in partnership with the company Surschiste, implemented with the ARC 1000® d'Eiffage Route pavement reprocessing workshop. A first on motorway network.
The site is located on both sides of Viry's full-track toll barrier (74). Work is being carried out on the renewal of the toll platform, which supports traffic of the order of 15,000 vehicles/day, of which 10% are heavyweight.
Use of a binder and a process « Low carbon » : Flexocim®
In response to the possibility of using a binder and a process « Low carbon », Eiffage Route responded with its Flexocim® innovation, consisting of reprocessing in place, cold with hydraulic binder, without input materials, the existing pavement structure. This innovation results from a multi-year collaboration between Eiffage Route and the company Surschiste, manufacturer and producer of the hydraulic binder.
Due to a high degree of clumping, present in existing pavement materials, and the use of a low-carbon hydraulic binder without clinker, the Flexocim® process has better properties and durability vis-à-vis the rise of cracks observed on clinker-treated seats. It provides the same class of mechanical resistance as conventional treated material with a better environmental balance (- 40% CO2) attested by the SEVE-TP eco-comparator.
This type of technical solution is fully in line with the Eiffage Group's low carbon policy and its strategic plan by 2030.















