新疆大学学报（自然科学版中英文）2026，Vol.43Issue(2)：208-222,15.DOI:10.13568/j.cnki.651094.651316.2025.10.13.0001
UHPC加固修复复合试件界面黏结性能影响因素研究
Study on Factors Affecting the Bonding Performance at the Interface of UHPC Composite Repair Specimens
摘要
Abstract
The bonding performance between UHPC(ultra-high-performance concrete)and existing concrete substrates is a critical factor in structural reinforcement and repair.This study experimentally investigates the effects of failure mode,matrix strength,interfacial roughness,and curing age on splitting tensile strength and double-sided shear strength,while analyzing the micro-mechanisms of the interfacial roughness group.Results indicate that:failure primarily occurs through interfacial de-lamination;increased matrix strength and curing age significantly enhance interfacial bond strength;interfacial bond strength continuously increases with rising interfacial roughness but stabilizes beyond RO2;top-pouring methods yield higher bond strength than side-pouring;the RO2 group achieves optimal interfacial bonding performance by balancing mechanical inter-locking and chemical bonding through moderate roughness,forming a dense interfacial transition zone.关键词
超高性能混凝土/加固修复/复合试件/界面黏结性能/微观机理分析Key words
ultra-high-performance concrete/reinforcement and repair/composite specimens/interface bonding perfor-mance/micro-mechanism analysis分类
建筑与水利引用本文复制引用
邓代强,胡圳,许福,李水生,曹国栋,李新星..UHPC加固修复复合试件界面黏结性能影响因素研究[J].新疆大学学报（自然科学版中英文）,2026,43(2):208-222,15.基金项目
湖南省科技创新计划"低成本超高性能混凝土及构件连接技术研究与示范"(2024JK2047) （2024JK2047）
湖南省自然科学基金"纤维极细尾砂充填材料性能及损伤机理"(2023JJ50041) （2023JJ50041）
砖石质文物智慧化保护利用技术湖南省重点实验室开放基金"中南地区摩崖石刻风化特征与机理研究"(HUSE-2024-01) （HUSE-2024-01）
中华人民共和国自然资源部金属矿山地下水灾害防治工程技术创新中心开放课题"岩溶大水深井矿山防治水技术研究"(CXZX-KF-2025-09). （CXZX-KF-2025-09）
