纤维增强高强钢绞线聚合物砂浆复合层单轴拉伸试验研究  

Study on Uniaxial Tensile Test of Polymer Mortar Composite Layer of Fiber Reinforced High-strength Steel Strand

作　　者：廖维张[1,2] 王秋婉 王红炜[1,2] 王俊杰 LIAO Weizhang;WANG Qiuwan;WANG Hongwei;WANG Junjie(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：《施工技术》2021年第10期109-112,共4页Construction Technology

基　　金：国家自然科学基金面上项目(51878028);北京建筑大学金字塔人才培养计划。

摘　　要：通过拉伸试验机对高强钢绞线网-纤维增强聚合物砂浆(HSS-FRCM)复合层试件进行静态拉伸力学性能试验,研究短切PP纤维及短切钢纤维增强砂浆对HSS-FRCM复合层单轴拉伸力学性能的影响。结果表明:短切纤维的掺入可有效提高整体复合层的抗拉性能,提高其抗开裂能力,且在未开裂阶段,两种不同纤维的掺入对其抗拉刚度的影响差别较大。Uniaxial tensile test of high strength steel-fiber reinforced cementitous matrix(HSS-FRCM) composite layer is carried out by universal testing machine, and the effects of PP and steel fiber reinforced mortar on the uniaxial tensile mechanical properties of HSS-FRCM composite layer are studied. It is concluded that the incorporation of chopped fibers can effectively improve the tensile properties and crack resistance of the whole composite layer, and in the uncracked stage, the effects of different fibers on its tensile stiffness are quite different.

关 键 词：聚合物砂浆 单轴拉伸试验 高强钢绞线 短切纤维 复合层 抗拉强度 

分 类 号：TU528[建筑科学—建筑技术科学]