江西建材Issue(8)：354-359,6.
玄武岩纤维增强水泥基材料与BFRP筋的黏结性能研究
Bonding Performance of Basalt Fiber Reinforced Cementitious Materials With BFRP Bar
摘要
Abstract
This study investigates the bond-slip performance of basalt fiber reinforced polymer(BFRP)bars and basalt fiber-reinforced cemen-titious matrix(BFRCM)materials through central pull-out tests.The effects of bar type,matrix type,bar diameter,and anchorage length on bond performance are analyzed.Based on these findings,a three-stage bond-slip constitutive model for BFRP bars and BFRCM was proposed.Results indicate that the bond strength between BFRP and concrete exceeds that of steel bars,with the bond strength between BFRP bars and mortar slightly lower than that between BFRP bars and concrete.Moreover,the BFRP bar diameter and the fiber volume fraction in the mortar exhibit an inverse relationship with bond strength.Additionally,further analysis reveals that the bond-slip curve comprises micro-slip,slip,descent,and residual stages.Utilizing the ascending segment of the CMR model,the descending segment of the continuous curve model,and the residual segment of the GFRP/steel strand composite bar model,a high-precision bond-slip model for BFRP bars and BFRCM is estab-lished.This study provides a crucial research foundation for the engineering application of BFRP bars and BFRCM.关键词
BFRP筋/玄武岩纤维水泥基材料/黏结滑移/本构模型Key words
BFRP bars/Basalt fiber reinforced cementitious matrix/Bond-slip/Constitutive model分类
建筑与水利引用本文复制引用
于彬,成佃虎,丁里宁,张楚楚,倪路瑶..玄武岩纤维增强水泥基材料与BFRP筋的黏结性能研究[J].江西建材,2024,(8):354-359,6.基金项目
中央高校基本科研业务费专项资金资助《隧道结构全寿命期灾病变机理及系统状态精准监测评估研究》(项目编号:2242022k30031,2242022k30033). （项目编号:2242022k30031,2242022k30033）
