机制砂混凝土高温后力学性能试验研究  

Experimental Study on the Mechanics Performances of the Concrete with Manufactured Sand after High Temperature

作　　者：张彦[1] 韩阳[1] 巩存蕊[1] 刘曙光 

机构地区：[1]河南工业大学,河南郑州450052 [2]郑州市建筑设计院,河南郑州450052

出　　处：《铜业工程》2012年第4期1-4,共4页Copper Engineering

基　　金：国家自然科学基金(50678060)

摘　　要：近年来,由于天然砂资源匮乏,机制砂作为天然砂的替代材料得到广泛应用。通过机制砂混凝土试块的高温后力学性能试验,分析了不同受热温度对机制砂混凝土抗压强度和劈裂抗拉强度的影响。结果表明:与天然砂混凝土高温性能相似,随着经历温度的升高,机制砂混凝土高温后残余力学强度逐渐降低,且在同配比条件下具有稍高的残余力学强度。In recent years,due to the lack of natural sand resources,the manufactured sand is widely used as an alternative material of it.This paper analyzes the effects of high temperature on the compressive strength and splitting tensile strength of the concrete with manufactured sand by the mechanical tests after high temperature.The results indicate that： similar to the high temperature performances of concrete with natural sand,residual mechanical strength of manufactured sand concrete drift down as the concrete samples experienced increases in temperature.And at the same proportion condition,concrete with manufactured sand has a slightly higher residual strength.

关 键 词：机制砂 混凝土 高温 抗压强度 劈裂抗拉强度 

分 类 号：TU528[建筑科学—建筑技术科学]