Thiopave温拌改性沥青和混合料性能研究  

Performance of Thiopave Warm Asphalt and Mixture

作　　者：周水文[1,2] 陈静 张蓉 张晓华[1,2] 孟良 Zhou Shuiwen;Chen Jing;Zhang Rong;Zhang Xiaohua;Meng Liang(Sichuan Provincial Transport Department Highway Planning,Survey,Design And Research Institute,Chengdu 611141;Research and Development Center of Transport Industry of Technologist,Materials and Equipment of Highway Construction and Maintenance,Chengdu 611130;Chengdu Tianfu New Area Investment Group Co.Ltd.,Chengdu 610042)

机构地区：[1]四川省交通运输厅公路规划勘察设计研究院,成都611141 [2]公路建设与养护技术、材料及装备行业研发中心,成都611130 [3]成都天府新区建设投资有限公司,成都610042

出　　处：《石油沥青》2019年第5期37-44,共8页Petroleum Asphalt

基　　金：四川省交通科技项目2009B3-3,四川省交通科技项目2010-510-36

摘　　要：针对Thiopave改性机理研究较少的问题,对不同掺量和养生时间改性沥青黏度、三大指标、车辙因子和频率扫描等进行了测试,在此基础上,对混合料水稳性能、高温性能和回弹模量进行了研究。结果表明,Thiopave具有温拌效果,且可改善沥青高温性能,但需要足够掺量;掺入Thiopave,混合料高温性能、承载能力显著增加;Thiopave改性沥青混合料TSR偏低的原因在于,未冻融试件劈裂强度增加过大;增加养生时间,有助于性能的进一步提高。Due to the lack of research on modified theory of Thiopave,viscosity,three major indexes,rutting index and frequency sweep are tested at different content and curing time.Base on this test,the water stability,high temperature performance and rebound modulus of mixture are researched.The result shows that,Thiopave has warm mix effect and improve high temperature Performance of asphalt with sufficient dosage,and high temperature performance and carrying capacity increase significantly.Why the TSR of Thiopave modified asphalt mixture decreased is the splitting strength of un-frozen sample increase too much.Increasing curing time contribute to the further improving of asphalt performance.

关 键 词：Thiopave 高温性能 水稳性能 养生时间 

分 类 号：U41[交通运输工程—道路与铁道工程]