Commonly called asphalt, bituminous mixes are a uniform mixture of coarse and fine aggregates coated with bitumen (binder).
Quality control of asphalt begins during the manufacture of the asphalt by the validation of compliance of materials (aggregates, binders and recycled materials), manufacturing methods in the factory and the finished product (temperature, homogeneity). The engineer continues his work by monitoring the implementation of the mix on-site (homogeneity of asphalt temperature during laying, density, thickness, adhesion). The finished coating is also subject to a series of controls (uniformity and surface roughness, compaction).
Aware of their ecological footprint, the producers are trying to think of new ways to reduce emissions through the introduction of recycled materials, vegetal bituminous binder or by producing warm mix.