摘要
为研究混杂骨料混凝土的高温性能,对两组不同水灰比(0.5、0.65)的混杂砖骨料再生混凝土试块进行不同温度条件下(200℃、400℃、600℃、800℃)高温试验,并对各温度下的混杂骨料混凝土进行单轴抗压强度性能试验.通过观察高温后试件表面颜色变化与破坏形态,系统地分析了在高温作用下混杂骨料混凝土抗压强度的变化趋势;对比质量与强度损失率变化,高水胶比较低水胶比时大.
In order to study the high temperature performance of mixed aggregate concrete, mixed brick aggregate concrete with two different water - binder ratios(0. 5 ,0. 65) were tested at different temperatures ( 200℃,400℃,600℃, 800℃, and the uniaxial compressive performance after these temperatures was experimented respectively. The change trend of compressive strength of mixed aggregate concrete after high temperature was systematically analyzed by observing the change of surface color and damage pattern of the specimen. Compared with the change of the loss rate of quality and strength, the loss of quality and strength of high water - binder ratio is greater than that of low water - binder ratio.
作者
戴小淞
武俊宇
郑滨潇
DAI Xiaosong;WU Junyu;ZHENG Binxiao(School of civil and Architecture Engineering, LiaoningUniversity of Technology, Jinzhou 121001, China)
出处
《四川建材》
2019年第9期28-29,共2页
Sichuan Building Materials
基金
辽宁省大学生创新创业训练计划项目(201810154054)
关键词
高温
混杂砖骨料
抗压强度
性能退化
high temperature
mixed brick aggregate
compressivestrength
the performance degradation
