Description
In recent years the asphalt rubber technology has started to be used in European countries. Several approaches for incorporation of crumb rubber into hot mix exist in Europe. The most common approaches are asphalt rubber continuous blend, asphalt rubber terminal blend and pre-prepared concentrate containing paving grade bitumen, crumb rubber and stabilizer (for non-coherent state of the concentrate). These processes are summarized in this article. The storage stability tests of various bitumens were performed and their properties evaluated. Performance tests of designed mixtures were evaluated and performance characteristics results of four porous asphalt mixtures are described in this article.
