摘要
采用基本性能、高温车辙、低温弯曲、浸水马歇尔和冻融劈裂试验对新疆天之泽90 A道路石油沥青的基本性能及其混合料的路用性能进行研究,结果表明新疆天之泽90 A道路石油沥青的各项基本性能指标均满足技术要求。新疆天之泽90 A道路石油沥青混合料具有良好的高温稳定性、低温抗裂性和抗水损性能,动稳定度值远远大于标准值;抗弯拉强度和弯曲劲度模量分别为8.5 MPa和2608 MPa,弯拉应变为3259με;浸水残留稳定度为86.6%,满足规范要求的75%;冻融劈裂抗拉强度比为82.1%,满足规范要求≥70%。新疆天之泽90 A道路石油沥青具有良好的高温、低温和抗老化性能,应用于新疆地区公路沥青路面可有效延长路面的使用寿命。
In order to study the basic properties of petroleum asphalt and the pavement performance of mixtures on Road 90 A in Tianzhize Xinjiang,this paper adopts tests of the basic properties,high temperature rutting,low temperature bending,immersion Marshall and freeze-thaw splitting.The results show that all the basic property indexes of the petroleum asphalt on 90 A meet the technical requirements.The petroleum asphalt mixtures on 90 A have good high temperature stability,low temperature crack resistance and water damage resistance.The dynamic stability value of the mixtures is far greater than the standard value.The flexural tensile strength and flexural stiffness modulus are 8.5 MPa and 2608 MPa respectively,and the flexural tensile strain is 3259με.The residual stability of the immersion is 86.6%and meets 75%of the standard requirements.The freeze-thaw splitting tensile strength ratio is 82.1%,which meets not less than 70%of the specification requirements.The petroleum asphalt on 90 A road has good high temperature,low temperature and anti-aging properties,which can effectively prolong the service life of the asphalt pavements in Xinjiang.
作者
刘富强
孙巧红
杨三强
周娟兰
LIU Fuqiang;SUN Qiaohong;YANG Sanqiang;ZHOU Juanlan(College of Civil Engineering and Architecture,Hebei University,Baoding 071002,China;Hebei Civil Engineering Monitoring and Evaluation Technology Innovation Center,Hebei University,Baoding 071002,China;China Railway Lanzhou Group Co.,Ltd.,Lanzhou 730031,China;School of Civil Engineering and Architecture,Jiangsu University of Science and Technology,Zhenjiang 212000,China)
出处
《重庆理工大学学报（自然科学）》
北大核心
2023年第7期177-183,共7页
Journal of Chongqing University of Technology：Natural Science
基金
河北省高等学校科学技术研究项目(QN2023217)
长安大学中央高校基本科研业务费专项资金资助&道路结构与材料交通运输行业重点实验室(长安大学)开放基金项目(300102213513)
河北大学人才引进科研启动项目(521100222023)。
关键词
道路工程
沥青路面
沥青胶结料
基本性能
路用性能
road engineering
asphalt pavement
asphalt binder
basic properties
pavement performance
