LEA®, the natural foaming process technology for warm andhalf warm mix asphalt

The paper presents the low energy asphalt technology to produce warm and half-warm The performances of these mixtures are equivalent to asphalt. Many techniques have been developed in the past years. Gaining experience and know-how over the years technologies have evolved as well as their Direct or indirect foaming techniques seem to forge ahead industry being mature to manufacture warm asphalt technological step will be to switch to half-warm mixtures presented process is one of the few to manage such a technological breakthrough, and the only one to have intensively used it for the past ten years. After explaining the principle of the process and the know-how associated going to present the performances of the asphalt from a mechanical point of view, as well as from the envi aspects. Finally, we are going to present an analysis course on a jobsite that has successfully performed for over five years, along with a certificate qualification of the process for use on motorways.