Improvement of the performances of modified bituminous concrete with EVA and EVA-waste

The improvement of the characteristics of the road flexible pavements is essential in regard to the growth of the traffics and the increasingly large performances of the vehicles. This improvement was made possible by the introduction of new methods and processes of modification of the products.The modification of the bituminous mix can be made in two manners: the first one is the modification of the bitumen binder (process A), the other one consists of the direct addition of a modifier during mixing operation (process B).It should be noted that one of the difficulties in Algeria is the absence of manufacturing units of the modified binders. For this reason, it is recommended to use the process B.In this article, the results of the influence of the modification of a bituminous concrete on its mechanical behaviour have been presented, using laboratory tests by the addition of EVA (Acetate of vinyl and ethylene) and of EVA-waste (waste of sole of shoes).