摘要
混凝土层面结合性能受诸多因素的控制影响,如浇筑间隔时间、干湿状态、表面粗糙度、界面剂、新浇筑混凝土性能和外部环境等。通过对国内外文献的总结分析发现,在浇筑时采用尽可能短的间隔时间,采用相对潮湿的基体,层面采用中等水平的粗糙度,涂刷合适的界面剂,采用性能优异的混凝土,选择适宜的浇筑环境,都会对层面结合性能起到明显提升的作用。对特殊界面剂的使用、制备工艺的优化、层面性能评价等方面进行了展望。研究成果可为混凝土层面结合的理论及试验研究提供参考。
The bonding performance of concrete is influenced by various factors such as pouring interval,dry/wet state,surface roughness,interfacial agent,properties of the newly poured concrete,and external environment.A summary and analysis of literature in China and abroad reveal that the bonding performance of concrete can be significantly improved by using short pouring intervals,relatively humid matrix,moderately rough surface,suitable interfacial agents,high-quality concrete,and appropriate pouring environment.Prospects for the use of special interface agents,optimization of preparation technology,and evaluation of bonding performance are also discussed.The research results may provide reference for theoretical and experimental research on the bonding of concrete surfaces.
作者
王玉璞
李家正
石妍
张超
WANG Yupu;LI Jiazheng;SHI Yan;ZHANG Chao(Material and Structure Department,Changjiang River Scientific Research Institute,Wuhan 430010,China;Research Center of Water Engineering Safety and Disaster Prevention of Ministry of Water Resources,Wuhan 430010,China)
出处
《长江技术经济》
2023年第3期104-112,共9页
Technology and Economy of Changjiang
基金
国家自然科学基金项目(52179122,U2040222,52109147)
湖北省自然科学基金项目(2022CFD026)。
关键词
混凝土
层面结合性能
强度
concrete
interlayer bonding performance
strength
