Effects of loading rate on flexural-tension properties and uniaxial compressive strength of micro-surfacing mixture
发布时间：2024-08-09
点击次数：
- 所属单位：
- 材料科学与工程学院
- 发表刊物：
- Journal of Wuhan University of Technology--Materials Science Edition
- 关键字：
- 中文关键字：加载速率；弯曲拉伸性能；单轴压缩强度；微表处，英文关键字：loading rate; flexural-tension properties; uniaxia
- 摘要：
- The major objective of this research was to discuss the effects of loading rate on the flexural-tension properties and uniaxial compressive strength of micro-surfacing mixture using three-point bending test and uniaxial compressive test respectively. As a preventive maintenance surface treatment on asphalt pavement, micro-surfacing was formed on the basis of the ISSA recommendation of an optimum micro-surfacing design. Tests were conducted over a wide range of temperature to investigate the difference of properties from low loading rate to a relatively high loading rate. Three-point bending test was used to study the flexural strength, strain and modulus of micro-surfacing mixture, and uniaxial compressive test was carried out to obtain the elationship between strength and the loading rate as well as temperature. The experimental results showed that flexural strength at high loading rate was larger than that at low loading rate. The flexural strength difference between low and high loading rate enlarged when the temperature rose. The flexural strain at high loading rate increased compared with results of the low loading rate. Results of the flexural modulus revealed that micro-surfacing mixture exhibited better anti-cracking characteristic at low temperature when given a relatively low loading rate. Results of uniaxial compressive test revealed that the strength difference of micro-surfacing among different loading rates increased with the increase of temperature. The logarithm relationship between the strength and loading rate over a wide range of temperature was obtained to compare the experimental and predicted values, which resulting in a reasonable consistency.
- 备注：
- 陈筝
- 合写作者：
- 吴少鹏
- 第一作者：
- 陈筝
- 论文类型：
- 期刊论文
- 卷号：
- 卷：25
- 期号：
- 期：4
- 页面范围：
- 页：656～658
- 是否译文：
- 否
- 发表时间：
- 2010-10-01