肋形混凝土永久模板与混凝土结合面抗拉强度试验  

Tensile Strength Test of Interface between Ribbed Concrete Permanent Form and Concrete

作　　者：周乾[1] 张亚仿 荀勇[1] 吴发红[1] 

机构地区：[1]盐城工学院土木学院,江苏盐城224051 [2]江苏省盐城市房产管理局,江苏盐城224002

出　　处：《建筑科学》2015年第3期78-82,共5页Building Science

基　　金：住房和城乡建设部项目(2013-K4-41);2014盐城市国家可持续发展实验区专项引导资金项目(2014.94-15)

摘　　要：本文针对肋形混凝土永久性模板与结构新浇混凝土之间粘接问题进行抗拉试验。试验结果表明,掺PVA纤维并带10mm宽、高肋的试件粘结面的抗拉强度是混凝土自身抗拉强度的87.5%,能够满足利用永久性模板浇筑的板、墙类构件抗拉要求。同时,对新老混凝土粘结面抗拉能力的计算方法进行了探讨。研究方法合理,结论比较正确,可供工程应用参考。In view of the ribbed concrete permanent adhesive problem between template and structural new pouring concrete, the tensile test is carried out. Test results show that PVA fiber with 10 mm rib width, high rib specimen on the surface of the adhesive tensile strength is 87.5% of the tensile strength of concrete itself, it can satisfy the use of permanent template pouring tensile plate, wall component tensile requirements. At the same time, the new and old concrete bonding surface tensile capacity calculation methods are discussed in this paper. The comparison research method is reasonable and correct, which can be a reference for engineering application.

关 键 词：肋形混凝土永久模板 结合面 抗拉强度 试块 试验 

分 类 号：TU317[建筑科学—结构工程]