Emulsion gravels and cold-mix asphalt
The history of these mixtures begins in the early 1900s with the main objective of small jobs and maintenance.
As the years went by, the emulsion bass evolved. The grave emulsion and cold mixes are today an essential alternative to hot techniques, and continue to evolve rapidly. This success is mainly due to undeniable assets: self-repair, stockability, flexibility, etc.
The main criteria are
- Grain size curve
- Structure flexibility
- Resistance and evolution
- Void index
- Waterproofing
- Implementation
- Transportability
Economical, efficient, low greenhouse gases emissions, RAP recycling, etc. Assets that make emulsion gravels experience a spectacular progression.
From emulsion gravel to double coating
With the evolution of the mechanical performances and the environmental constraints (reuse of the RAP, CO2 emission, ...), the grave emulsions evolved and are now decomposed into subgroups like the cold-dense mixes (for layer of rolling) or grave open emulsions.
Production techniques have also evolved to achieve the most advanced mixtures. One of the latest developments is the double coating.
