硅酸盐通报2018，Vol.37Issue(3)：1103-1108,1113,7.
再生骨料构成对混凝土性能的影响
Effect of Aggregates Constituent on Properties of Recycled Aggregates Concrete
摘要
Abstract
Mechanics and durability were specified by test at different constitution of recycle aggregate (RA).The results show that the compressive strength of block of recycle cement mortar(RCM)concrete is higher before 28 d; however, strength of nature aggregate(NA)concrete is still beyond to other composition of RA concrete for long term.Mass loss of RA concrete below 5%is found experienced one hundred freeze-thaw cycles.Decay rate on compressive strength of NA and RCM concrete is below to 25%,however,higher value than 25% are measured in recycle mix-aggregate containing 30% recycle brick(RB)and 70%RCM concrete and RB concrete.RA concrete with various compositions can meet the requirement of P10 impermeability grade,following greater impermeability on NA concrete,and then RB concrete, recycle mix-aggregate concrete and lower RB concrete.Resistances to chloride ion penetration keep in line with impermeability of concretes.RB has little influence on mechanics properties of RA concrete,and then negative effect s is more prominent to durability.关键词
再生骨料构成/力学性能/冻融循环Key words
constituent of recycled aggregate/mechanics/freeze-thaw cycle分类
建筑与水利引用本文复制引用
成高立,李晓光..再生骨料构成对混凝土性能的影响[J].硅酸盐通报,2018,37(3):1103-1108,1113,7.基金项目
陕西省科技统筹创新工程计划项目(2013KTCG02-02) （2013KTCG02-02）
中央高校基本科研业务费专项资金项目(310828152016) （310828152016）
