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水泥基复合材料集料与浆体界面研究综述(一):实验技术
作者:陈惠苏 孙伟 StroevenPiet 
单位:东南大学材料科学与工程系 东南大学材料科学与工程系 Faculty of Civil Engineering and Geosciences  Delft University of Technology  P.O.Box 5048 2600 GA Delft  Netherlands 南京210096  南京210096 
关键词:界面过渡区  微观结构  力学性能  传输性能  实验技术  综述 
分类号:TU528.01
出版年,卷(期):页码:2004,32(1):63-69
DOI:
摘要:
关于界面研究,概括起来主要可以从以下5个方面考虑:(1)界面研究的相关技术手段;(2)界面微观结构特征的研究;(3)界面微观结构的形成及劣化机理;(4)影响界面微观结构因素的研究;(5)界面过渡区的性能对材料宏观性能(包括:力学性能和耐久性)影响的研究。对这些问题的研究是为了回答以下2个问题:(1)各种层次的界面过渡区到底在多大程度上影响着整个材料的力学性能和耐久性;(2)通过改善界面来达到改善水泥基复合材料的性能这一措施是否可行。由于界面研究的技术手段与方法随着其它相关技术与设备的引入而不断取得新的进展,促进了水泥基复合材料集料与浆体界面相关研究也不断取得新的成果。关于界面研究的新实验技术和方法,从如下4个方面进行了描述:(1)与界面过渡区微观结构表征相关的实验技术;(2)与界面过渡区力学性能(包括:粘结强度、刚度和断裂力学性能)相关的技术和方法;(3)与界面过渡区传输性能相关的技术和方法;(4)与界面过渡区收缩性能相关的技术和方法。
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In literature, a huge amount of papers related to the study of the interfacial transition zone (ITZ) can be reduced into five aspects: (1) Development of techniques related to ITZ; (2) The nature and characterization of ITZ's microstructure; (3) Mechanism of formation and degradation of the ITZ's microstructure; (4) Factors influencing the ITZ's microstructure; (5) The influence of ITZ's properties on the macroproperties of materials (including mechanical properties and durability). The final purposes of the study on the above five aspects are to answer two questions: (1) How much do the ITZs at different levels affect the mechanical properties and durability of composites; (2) The feasibility to reach a higher level in performance for composite by improving the microstructure and properties of the ITZ's. The increasing availability of advanced techniques and equipments offers a better insight into the characteristics of the ITZ. In this contribution, the authors pursued to present the state-of-the-art of the ITZ study, instead of merely collecting outcomes from previous research. In the paper, the development of experimental techniques related to the ITZ are described. And the details can be found from the following four parts: (1) Characterization of the ITZ's microstructure; (2)Characterization of the mechanical properties (including bond strength, stiffness, and fracture mechanics) of the ITZ; (3) Characterization of the ITZ' s transport properties; (4) Characterization of the ITZ's shrink?ge.
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