摘要
借助万能材料试验机对砂粒式沥青混凝土进行三点弯曲、间接拉伸、稳定度等动态力学性能研究,分析多因素耦合作用下砂粒式细集料沥青混凝土的路用性能。结果表明:高温高压辐照多因素耦合作用下砂粒式沥青混凝土的稳定度最高可达11.8 kN。高温会使砂粒式沥青混凝土的路用性能降低,高压和辐照均可使砂粒式沥青混凝土的路用性能增加,高温高压辐照多因素作用下砂粒式沥青混凝土的路用性能也会增加。砂粒式沥青混凝土可作为沥青路面预防性养护的良好选材,其三点弯曲、间接拉伸、稳定度三者存在一定的关联性。
With the universal material testing machine,this paper studied dynamic mechanical properties such as three-point bending,indirect drawing,and stability of the sand asphalt concrete,and analyzed the road performance of the sand fine aggregate asphalt concrete under the action of multi-factor coupling.The results showed that the high temperature reduced the road performance of the sand asphalt concrete,while the high pressure,irradiation,and the multi-factor of high temperature,high pressure,and irradiation improved the road performance.The stability of the sand asphalt concrete under the multi-factor coupling of high temperature,high pressure,and irradiation was up to 11.8 kN.Sand asphalt concrete can be used as a good material for the preventive maintenance of asphalt pavement,and there was a certain correlation between three-point bending,indirect drawing,and stability.
作者
丁颢
DING Hao(Shanxi Provincial Highway Engineering Supervision Technology Consulting Co.,Ltd.,Taiyuan,Shanxi 030006,China)
出处
《山西交通科技》
2023年第3期13-15,36,共4页
Shanxi Science & Technology of Transportation
作者简介
丁颢(1994-),男,山西岚县人,助理工程师,大学本科,2016年毕业于山西大同大学土木工程专业。
