摘要
玄武岩纤维筋作为一种耐腐蚀性能优良的新型复合材料筋,因其抗拉弹性模量低以及延性差的不足,限制了它的推广应用.针对此问题,根据复合原理,将钢丝和玄武岩纤维原丝一起拉挤成型,研制出高模量玄武岩纤维-钢丝复合筋.从理论上分析了玄武岩纤维-钢丝复合筋受力机理,并对其进行了单向拉伸试验研究.试验结果表明,掺杂钢丝可以显著提高玄武岩纤维筋的抗拉弹性模量,并改善其延展性;玄武岩纤维-钢丝复合筋应力应变关系曲线具有双线性特征;复合筋抗拉弹性模量与钢丝掺量呈线性关系,掺杂钢丝24%时,复合筋抗拉弹性模量可达76 580 MPa.
This research is aimed to solve the problem caused by the basalt fiber reinforced polymer（BFRP） bar＇s low elastic modulus and bad ductility which limit its application,although it is a kind of new compound bar of excellent corrosive resistance.According to the composition theory,the steel wires with high modulus and basalt fiber were pulled together to produce the basalt fiber and steel wire composite（BFSWC） bar.Then the mechanical behavior of the BFSWC bar was theoretically analyzed and the single axial tensile behavior properties of BFSWC bar were tested.The test results indicate there is a significant improvement in the modulus and ductility of BFRP bar when intermingled with steel wire;the stress-strain curve of BFSWC bar is a clear double linear;the tensile elastic modulus of BFSWC bar has a linear change as steel wire intermingled quantity becomes higher.And the elastic modulus of BFSWC bar can reach 76 580 MPa,when the content ration of steel wire in BFSWC bar is twenty-four percent.
出处
《长沙理工大学学报（自然科学版）》
CAS
2010年第3期19-24,共6页
Journal of Changsha University of Science and Technology:Natural Science
基金
空军后勤部研究基金资助项目(KH0805019)
关键词
玄武岩纤维筋
高模量
复合原理
玄武岩纤维-钢丝复合筋
力学性能试验
basalt fiber reinforced polymer bar
high modulus
composition theory
basalt fiber and steel wire composite bar
mechanical property test
