|
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。
|
|
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.
|
|
基金项目：
|
|
|
|
作者简介：
|
how to catch a cheater online go my husband cheated on me click here women who cheat on husband |
|
参考文献：
|
[1] MINDESS S.Tests to determined the mechanical properties of the interfacial zone[A].In:MASO J C ed.Interfacial Transition Zone in Concrete[C].RILEM Report 11． London:E&FN SPON,1996． 47-63．
[2] MINDESS S.Bonding in cementitious composites:how important is it?[A].In:MINDESS S,SHAH S P,eds.Bonding in Cementitious Composites[C].MRS Vol 114,Pittsburgh:Materials Research Society,1988． 3-10．
[3] FARRAN J.Introduction:The transition zone-discovery and development[A].In:MASO J C ed.Interfacial Transition Zone in Concrete[C],RILEM Reoprt 11． London:E&FN SPON,1996． xiii-xv.
[4] 解松善.水泥基复合材料中界面粘结的研究[J].硅酸盐学报,1983,11(4) :489-497． XIE Songshan.J Chin Ceram Soc(in Chinese),1983,11(4) :489-497．
[5] TOGNON G P,CANGIANO S.Interface phenomena and durability of concrete[A].In:Proceedings of 7th International Congress on the Chemistry of Cement[C].Vol Ⅲ,Paris:Septima,1980． Ⅶ133-Ⅶ 138．
[6] WINSLOW D N,LIU D.The pore structure of paste in con-crete[J].Cem Concr Res,1990,20 (2) :227-235．
[7] WINSLOW D N,COHEN M D,BENTZ D P,et al.Percolation and pore structure in mortars and concrete[J].Cem Concr Res,1994,24 (1) :25-37．
[8] OLSON R A,NEUBAUER C M,JENNINGS H M.Damage to the pore structure of hardened Portland cement paste by mercury intrusion[J].J Am Ceram Soc,1997,80 (9) :2454-2458．
[9] HALPERINWP,DORAZIOF,BHATTACHARYAS,et al.Magnetic resonance relacation analysis of porous media[A].In:KLAFER J,DRAKE J M eds.Molecular Dynamics in Restricted Geometries[C].New York:John Wiley and Sons Inc,1989． 311．
[10] PEL L.Moisture transport in porous building materials[D].Eindhoven:Eindhoven University of Technology,1995． 125．
[11] BHATTACHARYA S,MAOUKWA M,D'ORAZIOF,et al.Microstructure determination of cement pastes by NMR and conventional techniques[J].Adv Cem Based Mater,1993,1(1) :67-76．
[12] BEAUDOIN J J,MARCHAND J.Pore structure[A].In:RA- MACHANDRAN V S,BEAUDOIN J J eds.Handbook of Analytical Techniques in Concrete Science and Technology:Principles,Techniques and Applications [M].New York:William Andrew Publishing,2001． 528-628．
[13] 许仲梓.水泥混凝土电化学进展-交流阻抗谱理论[J].硅酸盐学报,1994,22(2) :173-180． XU Zhongzi.J Chin Ceram Soc(in Chinese),1994,22 (2) :173-180．
[14] GU P,XIE P,BEAUDOIN J J,Microstructural characterization of the transition zone in cement systems by mean of A.C.impedance spectroscopy[J].Cem Concr Res,1993,23(3) :581-591．
[15] 唐国宝.水泥浆体-集料界面过渡区渗流结构及其对砂浆和混凝土性能的影响[D].上海:同济大学材料学院.2000． 133． TANG Guobao.The percolation structure of cement paste-aggregate interfacial transition zone and its effect on the properties of mortar and concrete (in Chinese,dissertation).Shanghai:Tongji University,2000． 133
[16] SHANE J D,MASON T O,JENNINGS H J.Conductivity and microstructure of the interfacial transition zone measured by impedance spectroscopy[A].In:ALEXANDER M G,ARLIGU-IE G,BALLIVY G,et al,eds.Engineering and Transport Properties of the Interfacial Transition Zone in Cementitious Composites[C],RILEM Report 20． Cachan:RILEM Publications SARL,1999． 173-203．
[17] HEIJS A W J.3D Simulation and visualization studies of flow in porous media[D].Delft:Delft University of Technology,2001． 147．
[18] BENTZ D P,MARTYS N S.Hydraulic radius and transport in reconstructed model three-dimensional porous media[J].Transp Porous Media,1995,17(3) :221-238．
[19] GRANDET J,OLLIVIER P.Orientation des hydrates au contact des granulats[A].In:Proceedings of the 7 th International Congress on the Chemistry of Cement [C].Vol Ⅲ,Paris:Editions Septima,1980． Ⅶ 63-Ⅶ 68．
[20] GRANDET J,OLLIVIER P.Nouvelle methode d'etude des interface ciments-granulats[A].In:Proceedings of the 7 th International Congress on the Chemistry of Cement [C].Vol Ⅲ,Paris:Editions Septima,1980． Ⅶ 85-Ⅶ 89．
[21] 王嘉.水泥石-石灰石集料界面过渡层结构和性能的研究[J].硅酸盐学报,1987,15(2) :114-121． WANG Jia.J Chin Ceram Soc (in Chinese),1987,15 (2) :114-121．
[22] SCRIVENER K L,PRATT P L.Characterisation of interfacialmicrostructure[A].In:MASO J C ed.Inopen open My husband cheated on me |
|
服务与反馈：
|
|
【文章下载】【加入收藏】
|
|
|
|
京公网安备 11010802024188号