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
张艳 1魏定邦 2赵静卓 2魏小龙 2董瑞2
作者信息
- 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
- 折叠
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.
Abstract
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Key words
high viscoelasticity modified asphalt mixture/high temperature stability/water stability/low temperature cracking resistance/ultra-thin cover引用本文复制引用
基金项目
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)
甘肃省交通运输厅科研项目(2021-02)
嘉峪关市重点研发计划(23-B21)
出版年
2024
NETL
NSTL
万方数据