PA-1/UV-531/SBR改性沥青混合料高低温性能评价  

Evaluation of High and Low Temperature Performance of PA-1/UV-531/SBR Modified Asphalt Mixture

作　　者：闵天府 MIN Tian-fu(School of Civil Engineering,Qinghai University,Xining 810016,China)

机构地区：[1]青海大学土木工程学院,青海西宁810016

出　　处：《化工管理》2022年第9期1-3,共3页Chemical Engineering Management

摘　　要：研究0.7%PA-1/1.6%UV-531/1.0%SBR(占基质沥青质量分数)改性沥青混合料低温抗裂性和高温抗车辙性能受温度影响的变化规律,采用半圆弯曲试验(semi-circular bending test,SCB试验)和高温车辙试验分别研究低温抗裂性和高温抗车辙性能。结果表明:PA-1/UV-531/SBR改性沥青混合料高温抗车辙能力满足规范对青海地区要求。To study the variation law of low temperature crack resistance and high temperature rutting resistance of 0.7%PA-1/1.6%UV-531/1.0%SBR(accounting for the mass fraction of base asphalt)modified asphalt mixture affected by temperature,the semicircle bending test(semi-circular bending test,SCB test)and high temperature rutting test study low temperature crack resistance and high temperature rutting resistance,respectively.The results show that the high temperature rutting resistance of PA-1/UV-531/SBR modified asphalt mixture meets the requirements of the specification for Qinghai area.

关 键 词：改性沥青混合料 SCB试验 高温车辙试验 低温抗裂性 高温抗车辙性能 

分 类 号：U414[交通运输工程—道路与铁道工程]