流态混凝土对透水模板布渗淤性能影响  

The Influence of Concrete Slurry on Permeability and Clogging of Controlled Permeability Formwork Liner

作　　者：田正宏[1] 孟思宇[1] 王晓[1] 王会[1] 王燕飞[2] 

机构地区：[1]河海大学水利水电工程学院,江苏南京210098 [2]杭州银博交通工程材料有限公司,浙江杭州311112

出　　处：《过滤与分离》2009年第2期1-5,22,共6页Journal of Filtration & Separation

基　　金：国家自然科学基金重点项目(50539010);国家自然科学基金(50579010)

摘　　要：基于侧压条件下对透水模板布(CPFL)浇筑混凝土前后的布料几何参数、渗排淤堵性能进行了测试,分析研究了不同类型CPFL一次使用前后的性能变化机理。研究表明,CPFL的厚度、孔径尺寸、混凝土浆体性能以及渗透压力对CPFL的水平渗透系数KH、垂直渗透系数KV、淤堵程度等影响显著,控制CPFL材料厚度、减小表层平均孔径、改善混凝土浆体配料可避免内部淤堵增加、渗透系数严重衰减,确保满足CPFL重复使用要求。The different controlled permeability formwork liners （CPFL） were selected and the CPFL＇s geometrical and physical parameters, permeability coefficient and clogging were analyzed in this article. The results indicated that permeability coefficient （KH, KV） and clogging of CPFL are affected obviously by thickness, average aperture, characteristic of concrete slurry and permeable pressure etc. Basing on permeability mechanism analysis, the author draw the conclusions that limiting the thickness of CPFL, reducing the average aperture and improving the characteristic of concrete slurry would keep inner part of CPFL from clogging intensely and ensure the reuse of CPFL.

关 键 词：透水模板布(CPFL) 混凝土浆体 水平渗透系数 垂直渗透系数 淤堵 平均孔径 

分 类 号：TS176.5[轻工技术与工程—纺织材料与纺织品设计]