碱当量对铜渣基透水混凝土性能的影响  

Influence of Alkali Equivalent on the Performance of Copper Slag-based Permeable Concrete

作　　者：王开发 WANG Kaifa(School of Resource and Environment and Safety Engineering,University of South China,Hengyang 421001,China)

机构地区：[1]南华大学资源环境与安全工程学院,湖南衡阳421001

出　　处：《洛阳理工学院学报（自然科学版）》2022年第4期1-5,共5页Journal of Luoyang Institute of Science and Technology：Natural Science Edition

基　　金：国家安监总局安全生产重大事故防治关键技术科技项目(HUNAN-0008-2016AQ).

摘　　要：以磨细铜渣为活性材料、水玻璃为激发剂、偏高岭土为掺和料、玄武岩为骨料,研究了铜渣基透水混凝土的性能。调整激发剂的碱当量,按照体积法配制不同碱当量的铜渣基透水混凝土,分别对试样进行单轴抗压强度、透水系数和连续孔隙率测试。当碱当量为4%~10%时,铜渣基透水混凝土的连续孔隙率和透水系数随着碱当量的增加而减小,透水性能满足规范要求;相反,试样的单轴抗压强度随着碱当量的增加而增加,28 d最大抗压强度达到10.01 MPa。Using ground copper slag as active material,sodium silicate as activator,metakaolin as admixture and basalt as aggregate,the properties of newly developed copper slag-based permeable concrete are carried out.By adjusting the alkali equivalent of the activator,copper slag permeable concretes with different alkali equivalent is prepared according to the volume method,and the uniaxial compressive strength,permeability coefficient and continuous porosity of the samples are tested respectively.The results show that when alkali equivalent is 4%to 10%,the continuous porosity and permeability coefficient of copper slag permeable concrete decrease with the increase of alkali equivalent.On the contrary,its uniaxial compressive strength increases with the increase ofalkali equivalent.The 28 d compressive strength reaches the maximum of 10.01 MPa.

关 键 词：铜渣 碱当量 抗压强度 透水系数 孔隙率 

分 类 号：TU528[建筑科学—建筑技术科学]