人工砂混凝土性能试验研究  

Experimental Study on Properties of Artificial Sand Concrete

作　　者：汪学清[1] 沈正艳 潘国栋 陈剑雷 WANG Xue-qing;SHEN Zheng-yan;PAN Guo-dong;CHEN Jian-lei(School of Mechanics and Civil Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China;People's Government of Zeku Town,Wendeng District,Weihai City,Weihai 264404,Shandong,China)

机构地区：[1]中国矿业大学(北京)力学与建筑工程学院,北京100083 [2]威海市文登区泽库镇人民政府,山东威海264404

出　　处：《矿冶工程》2020年第2期28-32,共5页Mining and Metallurgical Engineering

基　　金：国家级大创项目(C201806099)。

摘　　要：采用正交试验方法配制了不同人工砂取代率、石粉含量、粉煤灰含量的混凝土,对比了每组混凝土的坍落度,研究了3 d、28 d龄期混凝土的抗压性能。结果表明:最优配比的人工砂取代率、石粉含量和粉煤灰含量分别为10%、3%和5%,此时28 d抗压强度为40.1 MPa,满足30 MPa的混凝土设计强度。An orthogonal experimental design was used in the preparation of concrete with different rate of artificial sand,different contents of stone powder and fly ash.The slump tests for each group of concrete were performed to investigate the compressive properties of the concrete after 3-d and 28-d curing.The results show that with an optimal substitution rate of artificial sand,contents of stone powder and fly ash at 10%,3%and 5%,respectively,the compressive strength can be 40.1 MPa after 28-day curing,which meets the designed concrete strength of 30 MPa.

关 键 词：人工砂混凝土 骨料 正交试验 抗压强度 坍落度 

分 类 号：TU528[建筑科学—建筑技术科学]