水泥混凝土浆体 集料界面区结构与性能

混凝土浆体-集料界面区结构与性能影响混凝土的整体性能,是混凝土材料研究的热点之一。针对水泥混凝土浆体-集料界面区结构与性能特点,从混凝土界面区结构、性能、研究手段、改善方法及其对水泥混凝土性能影响等方面,综述了国内外水泥混凝土浆体-集料界面区结构与性能研究进展。总结了界面区结构特征与性能影响因素及微观和宏观两种界面区研究手段,分析界面区结构与性能差异原因及对混凝土整体性能影响程度,概括了矿渣粉和偶联剂等无机和有机两类界面区结构与性能改善方法,最后,提出混凝土界面区结构与性能研究重点和方向。

Structure and Performance of the Interface Zone between Mortar and Aggregate in Cement Concrete

The interface zone between mortar and aggregate influences overall performance of concrete and is an important issue for concrete research.Focusing on the structure and performance characteristics of the interface zone in cement concrete,the development of interface research in P.R.China and elsewhere were reviewed.The research aspects discussed included interface structure and performance,study techniques,interface improvement methods,and the influence of the interface on overall concrete performance.The influential factors of structural characteristics and interface zone performance,together with both microscopic and macroscopic research techniques,were summarized.The reasons for differences in interface zone structure and performance,and its degree of influence on the overall concrete performance were analyzed.Methods for improving the interface zone were generalized,including using an interface with slag powder as inorganic material and one with an organic coupling agent.Keys to research and future directions were proposed.