As a means of combining technical quality, economical and environmental considerations, the road designer has a palette of materials to work with, predominated by hot mix asphalts, with warm and cold mix asphalts in the process of development. Based on a combination of conditions needed to harmonise their complementary natures, the innovative process described here is aimed at creating maximised products conforming to sustainable development criteria with high-performance structures, controlled costs and reducedimpact of installations and sites. It is original in associating two hydraulic and hydrocarbon binders at ambient temperature, exclusively with separate fractions of a given granular mix, in order to construct a consistent whole comprising structuring elements bonded together with a stable mortar. The process has been tested on a moderate traffic road as surface course, which provides simultaneously, a re-profiling and reinforcing function. The mechanical and surface properties obtained at the end of application, comparable to those of a hot asphalt mix, enable easy reopening to traffic under totally safe conditions without any curing period. The article will go on to cover all the points concerned, emphasising in particular, theprinciple, composition and studies and the technical, economic and environmental advantages of the process. For the covering abstract see ITRD E139491.
Samenvatting