复合材料科学与工程Issue(7)：57-65,9.DOI:10.19936/j.cnki.2096-8000.20260728.007
玄武岩纤维筋与玄武岩纤维煤矸石混凝土的黏结性能研究
Research on the bonding performance of BFRP bars and basalt fiber coal gangue concrete
摘要
Abstract
To investigate the bond performance between BFRP bars and spontaneous combustion coal gangue ag-gregate concrete,a central pull-out test was conducted to analyze the effects of the coal gangue fine aggregate replace-ment rate and basalt fiber volume fraction on interfacial bond behavior.The applicability of a typical bond-slip model was also evaluated.The experimental results show that the main interfacial failure modes between the BFRP bar and the coal gangue concrete are splitting failure and pull-out failure.An appropriate amount of coal gangue fine aggre-gate can significantly improve the interfacial bond performance.The peak bond strength reaches its maximum when the replacement rate is 25%,while further increases in the replacement rate lead to a decrease in bond performance due to the higher porosity of the aggregate.Basalt fibers have a significant reinforcing effect on interfacial properties;the bond strength initially increases and then decreases with increasing fiber volume fraction,with 0.15%being the optimal fraction.Model comparison results show that the CMR model can accurately describe the bond-slip relation-ship between the BFRP bar and the coal gangue aggregate concrete.This study can provide a reference for the re-source utilization of coal gangue and the design of BFRP-reinforced concrete structures.关键词
BFRP筋/煤矸石混凝土/黏结性能/本构模型/玄武岩纤维Key words
BFRP bar/coal gangue concrete/bond performance/constitutive model/basalt fibers分类
通用工业技术引用本文复制引用
李坤,刘华新,刘镇荣..玄武岩纤维筋与玄武岩纤维煤矸石混凝土的黏结性能研究[J].复合材料科学与工程,2026,(7):57-65,9.基金项目
辽宁省教育厅科学基金项目(LTKY2024111) （LTKY2024111）
