掺合料及外加剂对植生型再生砖骨料混凝土性能的影响  

Effects of mixed materials and admixture on recycled brick aggregate vegetation-type concrete

作　　者：赵佳[1] 翟爱良[1] 王玉军[1] 吴明明[1] 王金龙[1] 

机构地区：[1]山东农业大学水利土木工程学院,山东泰安271018

出　　处：《混凝土》2016年第12期134-137,共4页Concrete

基　　金：山东省科技发展计划项目(2013GNC11402);国家科技支撑计划课题(2014BAL04B05)

摘　　要：通过在植生型再生砖骨料混凝土中以等量取代水泥用量的方法掺加粉煤灰、矿渣、硅粉,以及以等量取代水用量的方法添加酸性试剂FeSO_4溶液,研究了不同掺量对混凝土28 d抗压强度、内部孔隙中pH值的影响。研究表明:外掺料、酸性试剂FeSO_4溶液均有利于再生砖骨料混凝土内部孔隙p H值的降低,且提高了混凝土抗压强度。By the method of adding fly ash, slag, silica fume to replace the same amount of cement consumption and adding acidic reagents FeSO4 solution to replace the same amount of water in the vegetation-type recycled brick aggregate concrete, the research study the effects of different content on the compression strength of concrete 28 d and internal voids pH value.It is shown that admixture and acidic reagents FeSO4 solutions are conducive to reducing internal voids pH value of recycled brick aggregate concrete and improve the compression strength of concrete.

关 键 词：植生型 再生砖骨料混凝土 PH值 抗压强度 

分 类 号：TU528.01[建筑科学—建筑技术科学]