首页 | 本学科首页   官方微博 | 高级检索  
     

沥青混合料劈裂强度的影响因素
引用本文:彭勇,孙立军,石永久,黄志义.沥青混合料劈裂强度的影响因素[J].吉林大学学报(工学版),2007,37(6):1304-1307.
作者姓名:彭勇  孙立军  石永久  黄志义
作者单位:1. 浙江大学,土木工程系,杭州,310027;清华大学,土木工程系,北京,100084
2. 同济大学,道路与交通工程教育部重点实验室,上海,200092
3. 清华大学,土木工程系,北京,100084
4. 浙江大学,土木工程系,杭州,310027
基金项目:国家自然科学基金 , 中国博士后科学基金
摘    要:选用相同的试验材料,通过室内劈裂试验,研究了常温和低温下级配、油石比、空隙率以及均匀性对沥青混合料劈裂强度的影响规律。研究结果表明:常温下,随着级配变粗,沥青混合料劈裂强度增大;低温下,随着油石比增大,沥青混合料劈裂强度和劲度模量增大,破坏应变减小;随着空隙率的增大,沥青混合料劈裂强度减小;沥青混合料均匀性与劈裂强度间没有直接明显的相关性,但与其变异性间的关系很好。

关 键 词:道路工程  沥青混合料  劈裂强度
文章编号:1671-5497(2007)06-1304-04
收稿时间:2006-09-29
修稿时间:2006年9月29日

Factors affecting splitting strength of asphalt mixture
Peng Yong,Sun Li-jun,Shi Yong-jiu,Huang Zhi-yi.Factors affecting splitting strength of asphalt mixture[J].Journal of Jilin University:Eng and Technol Ed,2007,37(6):1304-1307.
Authors:Peng Yong  Sun Li-jun  Shi Yong-jiu  Huang Zhi-yi
Affiliation:1. Department of Civil Engineering, Zhejiang University, Hangzhou 310027, China; 2, Department of Civil Engineering, Tsinghua University, Beijing 100084, China; 3. The Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University, Shanghai 200092,China
Abstract:The effects of the aggregate gradation, the asphalt-aggregate ratio, the void content, and the homogeneity of the asphalt mixture on its splitting strength were investigated in the laboratory at low and normal temperatures. The results showed that at normal temperature the splitting strength of the asphalt mixture increases when the aggregate gradation becomes coarse; at low temperature the splitting strength and the stiffness module of the asphalt mixture increase and the failure strain decreases with the increase of the asphalt-aggregate ratio; with the increase of the void content, the splitting strength of the asphalt mixture decreases. It was found that for the asphalt mixture there is no direct and obvious relationship between the homogeneity and the splitting strength, but is between the homogeneity and the splitting strength variation.
Keywords:road engineering  asphalt mixture  splitting strength
本文献已被 维普 万方数据 等数据库收录!
点击此处可从《吉林大学学报(工学版)》浏览原始摘要信息
点击此处可从《吉林大学学报(工学版)》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号