Investigation of rutting, fatigue and cracking resistance parame-ters of CR modified warm asphalt binders compare with SBS modified binders

This study compares the rutting and cracking resistance fatigue parameters of crumb rubber (CR) modified warm asphalt binders, which were determined by viscoelastic continuum damage (VECD) theory. The effect combination CR modification Sasobit, a mix additive, was investigated. Performance + Sasobit compound compared with styrene-butadiene-styrene (SBS) modification. Newly developed rheological tests such as multi stress creep recovery (MSCR), lineer amplitude sweep (LAS) conventional applied to binders. It that binders improved parameter better in comparison SBS-added Although additive properties binder at low medium temperatures, this reduced when used additive. increased stiffness decreased temperatures. Besides, results LAS test revealed high strain values ​​(i.e.> 6%), life lower than pure binder. In other words, could not preserve material integrity.