矿渣微粉再生骨料混凝土力学性能试验研究  

Experimental Research on Soil Mechanics Performance of Recycled Aggregate Concrete with Slag Powder

作　　者：谷艳玲[1] 魏晓康 孙家国[1] 

机构地区：[1]武夷学院土木工程与建筑学院,福建武夷山354300

出　　处：《重庆科技学院学报（自然科学版）》2015年第3期133-136,共4页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：福建省教育厅科技项目"基于超细矿渣和硅粉高性能混凝土配制的研究"(JK2011057);福建省大学生创新创业训练计划项目"基于矿渣微粉再生混凝土耐久性试验研究"(201310397004)

摘　　要：以矿渣微粉等量取代水泥和使用再生粗骨料等质量取代天然粗骨料2个因素作为变量,利用均匀设计法设计16组试验方案,配制强度等级为C35的再生混凝土,对其抗压强度和工作性能进行试验,研究不同配方下再生骨料混凝土性能的影响规律,找出满足工程技术要求的最佳再生混凝土配合比。研究认为水胶比为0.4,水泥标号为P.O 42.5,矿渣微粉掺量为50%,废混凝土取代率为100%时,再生骨料混凝土实测28 d的强度为40.0 MPa,60 d的强度为42.1 MPa。By replacing cement with the same amount of slag powder and using recycled coarse aggregate of the same quality as substitution of natural coarse aggregate, we made 16 groups of test program based on uniform design method and made up recycled concrete with the strength grade of C35. We conducted the test on its compressive strength and working performance and studied the law of the effect as below ： the water to binder ratio by 0.4, the grade of cement by 42.5 MPa, the content of slag powder by 50%, waste concrete replacement rate by 100%, the measured 28 d intensity is 40 MPa and 60 d intensity is 42.1 MPa.

关 键 词：再生混凝土 矿渣微粉 抗压强度 均匀设计法 

分 类 号：TU528[建筑科学—建筑技术科学]