BFRP-FRCM复合层与加气砌块黏结性能试验研究  

Experimental investigation on bond behavior between BFRP-FRCM composite layer and aerated brick

作　　者：张振 廖维张[1,2] 马超[1,2] ZHANG Zhen;LIAO Wei-zhang;MA Chao(Beijing Higher Institution Engineering Research Center of Civil Engineering Structure and Renewable Material,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;Beijing Advanced Innovation Center for Future Urban Design,Beijing University of Civil Engineering and Architecture,Beijing 100044,China)

机构地区：[1]北京建筑大学工程结构与新材料北京市高等学校工程研究中心,北京100044 [2]北京建筑大学北京未来城市设计高精尖创新中心,北京100044

出　　处：《复合材料科学与工程》2022年第5期37-45,共9页Composites Science and Engineering

基　　金：国家自然科学基金项目(51878028);北京市自然科学基金项目(8222015,8212007);北京建筑大学市属高校专项资金(X19007,X20062,X20176)。

摘　　要：为了研究玄武岩纤维网-纤维增强水泥基(BFRP-FRCM)复合层与加气砌块之间的黏结性能,分别开展了考虑水泥基材料内掺纤维种类、复合层黏结长度和BFRP纤维网层数的单面剪切试验,探究了以上三个影响因素对复合层与砌块之间黏结性能的影响规律。试验结果表明:BFRP-FRCM复合层能够显著提高加气砌块的承载拉伸荷载的能力。复合层的黏结效果随着黏结长度的增加呈现先增加再减小的趋势,复合层的黏结长度存在最优值;增加纤维网层数可以提高试件抵抗拉伸荷载的能力,但其黏结效果会有所下降,纤维网强度利用率降低;相比于砂浆内掺聚乙烯纤维,内掺聚乙烯醇纤维对试件延性的提升效果更好。In order to study the bond behavior between basalt fabric reinforced polymer-fiber reinforced cementitious matrix(BFRP-FRCM)composite layer and aerated brick,the single-shear tests on BFRP-FRCM composite layer strengthening aerated bricks were conducted by considering the fibers mixed in cement-based materials,the bonding length of composite layer and the layer quantities of BFRP fiber meshes.Based on the tests results,fibers,bonding length and layer quantities influencing the bonding behavior between composite layer and block were explored.It presented that the BFRP-FRCM composite layer can significantly improve the tensile capacity of aerated brick.The bonding capacity of the composite layer becomes larger with the increase of bonding length.When it reaches the maximum value,it gradually gets smaller,i.e.,the bonding length of the composite layer has an optimal value.Increasing the quantity of basalt mesh layers can increase the tensile strength of the specimen,but the bonding behavior and the utilization ratio of tensile strength will decrease.Comparing with the specimens strength with polyethylene layer,the specimens strengthened with polyvinyl alcohol layers exhibited better ductility.

关 键 词：纤维增强水泥基材料 玄武岩纤维网 砌块 黏结性能 单面剪切试验 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]