石墨烯复合橡胶改性沥青路面性能研究

硅酸盐通报 ›› 2021, Vol. 40 ›› Issue (9): 3177-3184.

石墨烯复合橡胶改性沥青路面性能研究

雷润祥¹, 王永吉^2,3, 张富奎^2,3

1.甘肃省公路事业发展中心,兰州 730030;
2.甘肃省交通规划勘察设计院股份有限公司,兰州 730030;
3.甘肃畅陇公路养护技术研究院有限公司,兰州 730030

收稿日期:2021-03-09 修回日期:2021-04-28 出版日期:2021-09-15 发布日期:2021-10-08
通讯作者: 王永吉,工程师。E-mail:510717810@qq.com
作者简介:雷润祥(1979—),男,工程师。主要从事沥青路面相关技术研究。E-mail:844636306@qq.com

Research on Performance of Graphene Composite Rubber Modified Asphalt Pavement

LEI Runxiang¹, WANG Yongji^2,3, ZHANG Fukui^2,3

1. The Highway Development Center of Gansu Province, Lanzhou 730030, China;
2. Gansu Province Transportation Planning, Survey &Design Institiute Co., ltd., Lanzhou 730030, China;
3. Gansu Changlong Highway Maintenance Technology Institiute Co., Ltd., Lanzhou 730030, China

Received:2021-03-09 Revised:2021-04-28 Online:2021-09-15 Published:2021-10-08

摘要/Abstract

摘要： 本文结合甘肃柳敦公路试验段工程实例,研究石墨烯复合橡胶改性沥青(GRA)路面性能。通过常规试验、多应力重复蠕变(MSCR)试验、动态剪切流变(DSR)试验等方法分析研究了GRA性能,并对GRA混合料的路用性能进行了研究。结果表明:GRA与苯乙烯-丁二烯-苯乙烯三嵌段共聚物(SBS)改性沥青相比,针入度降低了12.7%,软化点、高温稳定性及其高温抗变形能力相当,抗应力变形能力及应力敏感性有所提升;GRA与橡胶SBS改性沥青相比,软化点增加了14.1%,弹性恢复增加了6.5%,针入度相当,高温稳定性及其高温抗变形能力有所提升。GRA较SBS改性沥青混合料表现出良好的路用性能,现场混合料更易于压实,渗水较小、强度较高,但构造深度有所降低。

关键词: 沥青路面, 石墨烯复合橡胶改性沥青, 多应力重复蠕变试验, 动态剪切流变试验, 路用性能

Abstract: In this paper, the performance of graphene composite rubber modified asphalt (GRA) pavement was studied based on the engineering example of the Liu-Dun highway test section in Gansu province. The performance of GRA was analyzed by routine tests, multiple stress creep and recovery (MSCR) test, dynamic shear rheometer (DSR) test and other methods, and the road performance of GRA mixtures was also studied. The results show that compared with SBS modified asphalt, the penetration of GRA is reduced by 12.7%, the softening point, high temperature stability and high temperature resistance to deformation are equivalent, and the resistance to stress deformation and stress sensitivity are improved.Compared with rubber SBS modified asphalt, GRA has an increase in softening point of 14.1%, elastic recovery by 6.5%, equivalent penetration, high temperature stability and high temperature resistance to deformation. Compared with SBS modified asphalt mixture, GRA has better road performance. The on-site mixture is easier to compact, and has less water seepage and higher strength, but the structure depth is reduced.

Key words: asphalt pavement, graphene composite rubber modified asphalt, multiple stress creep and recovery test, dynamic shear rheometer test, road performance

中图分类号:

U416.217

雷润祥, 王永吉, 张富奎. 石墨烯复合橡胶改性沥青路面性能研究[J]. 硅酸盐通报, 2021, 40(9): 3177-3184.

LEI Runxiang, WANG Yongji, ZHANG Fukui. Research on Performance of Graphene Composite Rubber Modified Asphalt Pavement[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(9): 3177-3184.

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