新型混凝土透水砖制备的正交试验研究  

Orthogonal Test Research on Preparation of New Concrete Permeable Brick

作　　者：范宗青 马继财 周璐 周阳 金长婷 Fan Zong-qing;Ma Ji-cai;Zhou Lu;Zhou Yang;Jin Chang-ting

机构地区：[1]青海省建筑建材科学研究院有限责任公司,西宁810008 [2]青海高原绿色建筑与生态社区重点实验室,西宁810008 [3]青海省建筑工程质量检测站,西宁810008

出　　处：《建筑技术开发》2020年第8期68-69,共2页Building Technology Development

摘　　要：通过在混凝土砖上预留透水孔制备新型混凝土透水砖,采用正交设计方法讨论分析了水灰比、粉煤灰、硅灰和砂率对混凝土透水砖抗压强度的影响。试验结果表明当水灰比为0.31,粉煤灰掺量为15%,硅灰掺量为5%,砂率为42%时,混凝土透水砖抗压强度最高,但水灰比、粉煤灰、硅灰和砂率变化时,对混凝土结构透水砖的透水系数影响不大。The influence of water cement ratio,fly ash,silica fume and sand ratio on the compressive strength of concrete permeable brick is discussed by using orthogonal design method.The test results show that when the water cement ratio is 0.31,the content of fly ash is 15%,the content of silica fume is 5%,and the sand ratio is 42%,the compressive strength of concrete permeable brick is the highest,but when the water cement ratio,fly ash,silica fume and sand ratio change,the water permeability coefficient of concrete structure permeable brick has little influence.

关 键 词：混凝土透水砖 预留透水孔 正交设计 

分 类 号：TU522.1[建筑科学—建筑技术科学]