دانشگاه علم و صنعت، دانشکده عمران
عنوان مقاله [English]
All over the world there are many projects used bitumen emulsion for cold in-place recycling (CIR) with good results. However, some emulsion CIR projects reported rutting, thermal cracking and asphalt stripping problems, caused to use additives to decrease rutting and emulsion CIR pavement distresses.
Since limited researches have been conducted to investigate the effect of additives on the recycled asphalt mixtures properties, in this research cement and lime used as additives in CIR mixtures. We used cement and lime in the form of powder and SBS as additive with or without cement and lime to evaluate the effect of each additive on the mechanical properties such as Marshall stability, durability, resilient modulus and permanent deformation.
Result indicate that SBS, cement and lime increase Marshall Stability, Resilient Modulus, moisture resistance and resistance to permanent deformation. Furthermore, mixtures which contain both cement and SBS have better results.