新老混凝土粘结界面的微结构及与集料-水泥界面的差异  

MICRO-STRUCTURE OF BOND INTERFACE BETWEEN NEW AND OLD CONCRETE AND ITS DIFFERENCE FROM INTERFACE OF AGGREGATES-CEMENT PASTES

作　　者：谢慧才[1] 李庚英[1] 熊光晶[1] 

机构地区：[1]汕头大学土木系,汕头515063

出　　处：《工业建筑》2003年第1期43-45,共3页Industrial Construction

基　　金：国家攀登计划 (B)"重大土木水利工程安全性与耐久性的基础研究"子项目;广东省自然基金项目资助

摘　　要：新老混凝土粘结界面的性能在很大程度上将由其微观结构来决定。在大量宏观和微观试验研究的基础上 ,提出了粘结界面的微结构模型 ,并分析了微结构的生成机理、组成和形貌特征。与已有较多研究的集料 -水泥界面模型进行了进一步对比 ,指出了它们之间的重要差异。The properties of bond interface between new and old concrete depend mainly on its micro\|structure.The paper puts up the micro\|structure model of interface,based on a large amount of experimental research for its micro\|structure and macro\|mechanical properties.The mechanism forming the micro\|structure, the morphology and micro\|chemical features were analyzed in detail.The microstructure between new and old concrete is further compared with that between aggregate and cement paste.The important difference is pointed out.The relationship between the micro\|structure and the macro\|mechanical property is also analyzed in this study.The results are expected to be a good guide for improving bond quality.

关 键 词：混凝土 粘结界面 微结构模型 集料-水泥界面 

分 类 号：TU375[建筑科学—结构工程] TU