不同温度下再生骨料沥青混凝土动态抗压性能研究  

Study on dynamic compressive properties of recycled aggregate asphalt concrete with different temperatures

作　　者：董静[1] 王颖[1] 于成洋 刘云贺[1] 宁致远[1] 陈亮亮[1] DONG Jing;WANG Ying;YU Chengyang;LIU Yunhe;NING Zhiyuan;CHEN Liangliang(State Key Laboratory of Eco-hydraulics in Northwest Arid Region,Xi'an University of Technology,Xi'an 710048,China;China Construction Eighth Bureau Second Construction Co.,Ltd.,Jinan 250014,China)

机构地区：[1]西安理工大学省部共建西北旱区生态水利国家重点实验室,西安710048 [2]中建八局第二建设有限公司,济南250014

出　　处：《水力发电学报》2024年第3期84-93,共10页Journal of Hydroelectric Engineering

基　　金：国家自然科学基金青年项目(52109167);国家自然科学基金重点项目(52039008);陕西省科技创新团队(2022TD-01)。

摘　　要：为进一步研究再生骨料沥青混凝土在水工建筑物中的适用性,本文在不同温度环境中对再生骨料水工沥青混凝土的动态力学特性进行试验研究。对再生骨料水工沥青混凝土在温度为-10℃~10℃和应变速率为10^(-5)~10^(-2)s^(-1)的条件下进行动态抗压性能试验研究。试验结果表明:再生骨料水工沥青混凝土的抗压强度和弹性模量与温度成反比关系,与加载速率成正比关系;峰值应变与温度成正比关系,与加载速率成反比关系。通过温度影响因子和相关性系数分析,发现抗压强度和弹性模量随着温度升高逐渐减小并趋于某一定值。To further study the applicability of recycled aggregate asphalt concrete to hydraulic structures,this paper studies the dynamic mechanical properties of this concrete in different temperature environments.Its dynamic compressive performance is examined for the temperature range of-10℃to 10℃and the strain rate range of 10^(-5) to 10^(-2) s^(-1).The test results show that the compressive strength and elastic modulus are inversely proportional to temperature and proportional to loading rate;the peak strain is proportional to temperature and inversely proportional to loading rate.An analysis of temperature influence factors and correlation coefficients reveals that both compressive strength and elastic modulus gradually decrease with the rising temperature and tend to certain constant values.

关 键 词：再生骨料 水工沥青混凝土 动态抗压 温度影响因子 相关系数 

分 类 号：TV441[水利工程—水工结构工程]