CAJ | 학술논문

采用其他聚合物替代部分,SBS(聚苯乙烯-聚丁二烯-聚苯乙烯嵌段共聚物)在不降低其综合性能的前提下,可以适当降低改性沥青的生产成本.采用SBS、SBS+SBR(丁苯橡胶)和SBS+LDPE(低密度聚乙烯)改性石油沥青,研究改性沥青的常规指标.试验结果表明,SBS+SBR对沥青的高温抗车辙性能改善效果较好,对沥青低温性能的改善效果不及SBS.
채용기타취합물체대부분,SBS(취분을희-취정이희-취분을희감단공취물)재불강저기종합성능적전제하,가이괄당강저개성력청적생산성본.채용SBS、SBS+SBR(정분상효)화SBS+LDPE(저밀도취을희)개성석유력청,연구개성력청적상규지표.시험결과표명,SBS+SBR대력청적고온항차철성능개선효과교호,대력청저온성능적개선효과불급SBS.
Polymers are used to replace part of SBS, can be appropriate to reduce the cost of production of modified asphalt. In this paper, SBS, SBS + SBR and SBS + LDPE were used to modify asphalt, the conventional indicators of it was studied. The experimental results showed that,asphalt with SBS + SBR modification had better high-temperature anti-rutting performance, but its low temperature performance was less than that modified by SBS. How to give full play to the mixed modifier of the advantages remains to be further studied.