目标孔隙率对再生透水砖性能的影响研究  

Effect of target porosity on technical properties of recycled permeable bricks

作　　者：王仲佳 杨策 翁大庆 郑智杰 孟涛[1] 洪永鹏 WANG Zhongjia;YANG Ce;WENG Daqing;ZHENG Zhijie;MENG Tao;HONG Yongpeng(College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China;Hangzhou Lvnong Environmental Engineering Co. Ltd.,Hangzhou 310000,China;Hangzhou Luqiao Group Co. Ltd.,Hangzhou 310022,China)

机构地区：[1]浙江大学建筑工程学院,浙江杭州310058 [2]杭州绿农环境工程有限公司,浙江杭州310000 [3]杭州市路桥集团股份有限公司,浙江杭州310022

出　　处：《新型建筑材料》2019年第4期51-54,共4页New Building Materials

摘　　要：为解决建筑废弃物总量急剧增加的问题,将4.75~9.5mm粒径组海宁再生粗骨料用以制备透水砖,利用了基于目标孔隙率的透水砖配合比设计方法,研究了当目标孔隙率在10%~25%的基层配合比,分析了目标孔隙率对再生透水砖力学性能和透水系数的影响。结果表明,随着目标孔隙率增加,抗折、抗压强度逐渐下降,透水系数逐渐上升,且当目标孔隙率为15%~20%时透水砖各方面性能均符合GB/T25993—2010《透水路面砖和透水路面板》要求。In order to solve the problem of dramatic increase of total construction waste,the recycled coarse aggregate of 4.75~9.5 mm group was used to make permeable bricks,and the mixture ratio design method of permeable bricks based on target porosity was used to study the mixture ratio of base layer under different target porosity. The influence of target porosity on the mechanical properties and permeability coefficient of recycled permeable bricks was analyzed. The results show that with the increase of target porosity,the flexural strengths and compressive strengths decrease gradually,and the permeability coefficient increases gradually. When the target porosity is 15% to 20%,the performance of permeable bricks meets the requirements.

关 键 词：建筑废弃物 再生透水砖 目标孔隙率 性能指标 

分 类 号：TU522.1[建筑科学—建筑技术科学]