透水混凝土透水性能正交设计与试验研究  

Orthogonal Design and Experimental Study in Permeability Performance of Permeable Concrete

作　　者：杨福俭 陈晓强[1] 姚勇[1] 陈代果[1,2] 陈聪慧 YANG Fujian;CHEN Xiaoqiang;YAO Yong;CHEN Daiguo;CHEN Conghui(School of Civil Engineering and Architecture,Southwest University of Science and Technology,M ianyang,Sichuan 621010,China;CAS Key Laboratory of Mechanical Behavior and Design of Materials,University of Science and Technology of China,Hefei,Anhui 230026,China)

机构地区：[1]西南科技大学土木工程与建筑学院,四川绵阳621010 [2]中国科学院材料力学行为和设计重点实验室,中国科学技术大学,安徽合肥230026

出　　处：《施工技术》2020年第3期70-73,共4页Construction Technology

基　　金：国家自然科学基金(51908476);住房和城乡建设部科技计划项目(2018-K9-049; 2018-K9-059);四川省科技创新苗子工程(2016104);中国水利水电第七工程局有限公司科技项目

摘　　要：在正交试验的基础上,对透水混凝土试件透水系数进行极差和方差分析,得到影响透水系数因素敏感性和最佳因素组合。通过对比试验结果,对透水系数进行分析,得出其变化规律。研究结果表明,影响透水系数因素敏感性顺序为每层插捣次数、入模层数、加载时间、静压荷载,其中每层插捣次数和入模层数对透水性能的影响较大;最佳因素组合为静压荷载50kg、加载时间9min、1层入模、每层插捣10次;适当减少入模层数及每层插捣次数可提高透水性能,透水系数平均值最多可提高209. 5%,透水系数最大可达13. 8mm/s。On the basis of the orthogonal test,the sensitivity and the best combination of influencing factors of permeability coefficient are obtained by means of range and variance analysis. The permeability coefficient is analyzed by the comparison test results,and the variation law of the permeability coefficient is obtained. The study results show that the sensitivity order of the factors affecting the permeability coefficient is the number of tamping times,the number of incoming layers,loading time,static compression load. The tamping times in every layer and incoming layers have great influence on the permeability. The best combination of factors is static pressure load for 50 kg,loading for 9 min,1 layers,10 tamping times.It is suitable to reduce the layers and to reduce the number of tamping for average permeability coefficient,which can be increased up to 209. 5%,the value is13. 8 mm/s.

关 键 词：混凝土 透水系数 入模层数 插捣次数 正交试验 

分 类 号：TU528[建筑科学—建筑技术科学]