冻融循环作用下橡胶颗粒沥青混合料性能研究  

Performances of Rubber Granular Asphalt Mixture Under Repeated Freeze Thaw Cycles

作　　者：吴水辉 WU Shuihui(Jiangsu Xin Yue High Tech(Group)Company Limited,Zherujiang 212009)

机构地区：[1]江苏新越高新技术(集团)股份有限公司,镇江212009

出　　处：《石油沥青》2023年第1期44-47,共4页Petroleum Asphalt

摘　　要：为了研究橡胶颗粒沥青混合料的耐久性能,采用SMA-13级配试件的多次冻融试验方法,测试了掺3%橡胶颗粒的高粘改性沥青(RHVA)和SBS改性沥青(RMA)两种橡胶颗粒沥青混合料的高温、低温、抗飞散以及抗水损害等路用性能。结果表明,高粘改性沥青和SBS改性沥青的橡胶颗粒沥青混合料表现出优异的综合性能,高粘改性沥青的低温性能提升约8%,经10次反复冻融循环作用后,两种沥青混合料的路用性能仍满足规范技术要求,均具有较好的耐久性能,而RHMA混合料较RMA混合料表现更优的综合性能,更适合严寒环境,在防冰雪灾害道路工程中,可作为抑制冻结铺装路面优选的沥青结合料。The paper aims to investigate the durability of rubber granular asphalt mixture.The pavement performances of asphalt mixture using two kind of binders,high viscosity modified asphalt and SBS modified asphalt,mixed with 3%rubber particles at high temperature,low temperature,Kentabau dispersion and water damage resistance were tested by repeated freeze-thaw cycles method.After several freeze-thaw cycles,the pavement performances of the two asphalt mixtures can meet the technical requirements;The comprehensive performances of RHVA mixture shows better than RMA mixture,and in which the low temperature perform-ance is increased by about 8%.After repeated freeze-thaw cycles,the rubber granular asphalt mixtures of the two kind of modified asphalts still have good pavement performances and good durabilty,RHVA has bet-ter comprehensive performances and is more suitable for the severe cold environment.It can be used as the preferred asphalt binder.

关 键 词：沥青混合料 橡胶颗粒 路用性能 冻融循环 

分 类 号：U414[交通运输工程—道路与铁道工程]