再生粗、细骨料对混凝土透气性能的影响

发布时间：2018-04-30 08:52

本文选题：再生混凝土 + 透气性　；参考：《建筑材料学报》2014年01期

【摘要】：采用C30混凝土制备的再生粗、细骨料对不同强度等级及不同置换率再生混凝土进行了抗透气性能试验研究.结果表明:当粗骨料为再生粗骨料、细骨料为天然砂时,再生粗骨料置换率对再生混凝土透气系数的影响较小;当粗骨料采用天然碎石时,再生细骨料置换率对再生混凝土透气系数的影响较大,其透气系数随着再生细骨料置换率增加而增大.
[Abstract]:The permeability properties of recycled concrete with different strength grades and different replacement rates were studied by using recycled coarse and fine aggregate made of C30 concrete. The results show that when coarse aggregate is recycled coarse aggregate and fine aggregate is natural sand, the replacement ratio of recycled coarse aggregate has little effect on the permeability of recycled concrete, and when coarse aggregate is natural gravel, The replacement ratio of recycled fine aggregate has a great influence on the permeability of recycled concrete, and its permeability increases with the replacement rate of recycled fine aggregate.
【作者单位】：辽宁工程技术大学建筑工程学院;东北财经大学投资工程管理学院;
【基金】：辽宁省教育厅资助项目(2008282) 辽宁工程技术大学博士后基金资助项目(70DZ45)
【分类号】：TU528.0

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