摘要
以中海AH-70号沥青为基质,废橡胶粉为改性剂、糠醛抽出油为溶胀剂,采用高速剪切工艺制备出了废橡胶粉改性道路沥青产品。基于沥青常规指标试验以及弹性恢复的测定,考察了溶胀剂加入量、废橡胶粉掺入量以及预混母料中基质沥青的加入量三个因素对改性沥青产品性能的影响,优化了改性沥青的制备工艺。改性后,沥青的高温稳定性、低温抗疲劳性能和抗裂性能均获得明显改善。
Asphalt Zhonghai AH-70 was modified by crumb rubber. Based on the normal index test and elastic recovery test, the effect of the amount of menstruum, crumb rubber and the ratio of basis mum phalt tigue asphalt in prehlending mixture to the performance of modified asphalt were investigated, optimum technological parameters were determined. The results indicated that crumb rubber and basis as-phalt had good mixing property, high temperature stability, low temperature crack resistance and fa-tigue resistance were improved.
出处
《石油沥青》
2008年第1期12-14,共3页
Petroleum Asphalt
关键词
废橡胶粉
改性沥青
工艺
性能研究
Crumb rubber
Modified asphalt
Process
Performance study
