活化胶粉类高粘弹改性沥青超薄罩面应用技术研究  

Research on application technology of activated rubber powder modified high viscoelastic asphalt ultra-thin cover

作　　者：张艳 魏定邦 赵静卓 魏小龙 董瑞 ZHANG Yan;WEI Dingbang;ZHAO Jingzhuo;WEI Xiaolong;DONG Rui(Gansu Jiayuguan Highway Development Center,Jiayuguan,735100;Gansu Provincial Transportation Planning Survey and Design Institute Co.,Ltd.,,Center for High-Performance Materials Research and Development,Lanzhou 730030)

机构地区：[1]甘肃省嘉峪关公路事业发展中心,甘肃嘉峪关735100 [2]甘肃省交通规划勘察设计院股份有限公司高性能材料研究所,甘肃兰州730030

出　　处：《中国建材科技》2024年第2期100-104,共5页China Building Materials Science & Technology

基　　金：甘肃省科技重大专项-企业创新联合体项目(22ZD6GA010);企业研发机构能力建设专项(22CX8JA091);中央引导地方科技发展资金项目(22ZY1QA005);甘肃省重点研发项目(22YF7GA135);甘肃省交通运输厅科研项目(2023-33,2021-02);嘉峪关市重点研发计划(23-B21)。

摘　　要：为探究活化胶粉类高粘弹改性沥青混合料在超薄罩面中的适用性,采用车辙试验、小梁弯曲试验、浸水马歇尔试验、冻融劈裂试验等对比高粘弹改性沥青和SBS改性沥青混合料的高温性能、低温性能和水稳定性能,并依托G30线嘉峪关段铺筑试验段。结果表明,相较于SBS改性沥青混合料,高粘弹改性沥青混合料的高温性能提升约70%,水稳定性能提升约20%,低温性能提升约10%,可显著改善路面的服役状况。In order to investigate the applicability of activated rubber powder high viscoelastic modified asphalt mixture in ultra-thin cover,this paper adopts rutting test,beam bending test,immersed Marshall test,freeze-thaw splitting test to compare the high-temperature performance,low-temperature performance and water stability of the high viscoelastic modified asphalt mixture and SBS modified asphalt mixture.And an ultra-thin cover test section is paved at Jiayuguan section of G30 Expressway.The results show that compared to SBS modified asphalt mixture,high viscoelastic modified asphalt mixture has a high temperature performance improvement of about 70%,water stability performance improvement of about 20%,and low temperature performance improvement of about 10%,which can significantly improve the service condition of the pavement.

关 键 词：高粘弹改性沥青混合料 高温稳定性能 水稳定性能 低温抗开裂性能 超薄罩面 

分 类 号：U414[交通运输工程—道路与铁道工程]