Discover all the technical news of the Colas group
Experimental Projects in Gironde Ecomac, Euromac and Easycold™
The wish of the Gironde Departmental Council to trial new processes in the framework of its public-private ecological transition agreement enabled Floirac branch from Colas Sud-Ouest to made use of 3 innovative techniques :
- EUROMAC, an ultra-thin emulsion-based asphalt mix. With its 0/6 formulation, EUROMAC was laid down at an average spread rate of 32 kg/m².
- ECOMAC 0/10 (average spread rate 115 kg/m²), "half-warm" emulsion-based asphalt mix, was produced at a temperature of 90°C, with 30 % recycled asphalt pavement in the formulation.
- EASYCOLD, ultra-thin emulsion-based asphalt mix, was applied at an average spread rate of 52 kg/m². The asphalt pavement quality obtained was optimal thanks to the pre-coating of the sand with pure bitumen.
These 3 techniques will be subject to a 3-year follow-up according to a protocol agreed with the Gironde Departmental Council.