碎砖骨料对混凝土力学性能影响  

Effect of Broken Brick Aggregate on the Mechanical Properties of Concrete

作　　者：刘兰君[1,2] 耿蒙蒙 Liu Lanjun;Geng Mengmeng(School of Civil Engineering,Shangqiu Institute of Technology,Shangqiu,Henan 476000,China;Research Center of Underground Space and Geotechnical Engineering in Yellow Area of Eastern Henan Province,Shangqiu,Henan 476000,China)

机构地区：[1]商丘工学院土木工程学院,河南商丘476000 [2]豫东黄泛区地下空间与岩土工程研究中心,河南商丘476000

出　　处：《绿色科技》2022年第20期276-280,共5页Journal of Green Science and Technology

基　　金：商丘工学院2022年度校级科研重点项目(编号:2022KYXM06)。

摘　　要：为研究碎砖对混凝土力学性能的影响,试验取碎砖掺量分别为10%、15%、20%、25%、30%、50%、70%、100%,考虑附加用水量。根据试验结果,总结了碎砖对混凝土力学性能的影响,通过对试验数据进行回归分析,获得了2个预测碎砖再生混凝土任意龄期立方体抗压强度的公式,并得到了再生混凝土28 d相对抗压强度、28 d相对抗折强度、28 d相对劈裂抗拉强度与碎砖掺量之间的函数方程。In order to study the effect of broken brick on the mechanical properties of concrete, the content of broken brick is 10%, 15%, 20%, 25%, 30%, 50%, 70% and 100%, and additional water consumption was considered.Based on the results of the test, the effect of the broken brick on the mechanical properties of the concrete is summarized.Based on the regression analysis of the test data, two formulas for predicting the compressive strength of recycled brick recycled concrete at any age are obtained, and the functional equations between the relative compressive strength of recycled concrete for 28 d, the relative bending strength for 28 d, the relative split tensile strength for 28 d and the content of broken brick are obtained.

关 键 词：碎砖 再生混凝土 力学性能 

分 类 号：TU528.1[建筑科学—建筑技术科学]