Uniaxial impact compressive characteristics of permeable asphalt concrete

被引：0

作者：

MOE Research Center of Mine Underground Engineering, Anhui University of Science and Technology, Huainan ^{[1
]}

232001, China

机构：

[1] MOE Research Center of Mine Underground Engineering, Anhui University of Science and Technology, Huainan

来源：

J Vib Shock | / 4卷 / 195-199 and 216期

关键词：

Impact compressive strength; Permeable asphalt concrete; Polyester fiber; SHPB; Strain rate;

D O I：

10.13465/j.cnki.jvs.2015.04.033

中图分类号：

学科分类号：

摘要：

In order to investigate the dynamic characteristics of permeable asphalt concrete, a 74mm steel split Hopkinson pressure bar (SHPB) apparatus was used to conduct uniaxial impact compressive test with various strain rates for permeable asphalt concretes with polyester fiber content of 0 and 0.3%. The test results showed that there is a significant strain rate effect on permeable asphalt concrete and the specimen compression ratio increases with increase in strain rate; the specimen compression ratio of the permeable asphalt concrete with polyester fiber is about 1.2 times as large as that of the concrete without polyester fiber; the dynamic stress-strain curve of permeable asphalt concrete includes 3 stages of elastic deformation stage, plastic deformation one and failure one; observing the failure mode of permeable asphalt concrete, the aggregate fracture is considered as the main reason for permeable asphalt concrete failure; polyester fiber in permeable asphalt concrete can delay cracks appearing and spreading and improve dynamic compressive strength, the largest strength increase can reach 45.1%. ©, 2015, Chinese Vibration Engineering Society. All right reserved.

引用

页码：195 / 199and216

共 13 条

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