苏州混凝土水泥制品研究院有限公司

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混凝土界面过渡区(ITZ)微观特性研究进展
Research Progress on Microstructure Characteristic of Interface Transition Zone of Concrete
2018年第2期
混凝土;界面过渡区;微观结构;表征参数;孔隙率
Concrete; Interface transition zone; Microstructure; Characterization parameters; Porosity
2018年第2期
1000-4637(2018)02-07-06
国家自然科学基金项目(51708349、11672185);温职院面向温州510产业新技术应用项目(WZY510005);上海市大学生创新创业计划(SH2016112)。
欧阳利军1,安子文1,杨伟涛1,丁 斌2,镇 斌1
1.上海理工大学 环境与建筑学院,200093;2. 温州职业技术学院 建筑工程系,325035

欧阳利军1,安子文1,杨伟涛1,丁 斌2,镇 斌1

欧阳利军,安子文,杨伟涛,等.混凝土界面过渡区(ITZ)微观特性研究进展[J].混凝土与水泥制品,2018(2):7-12.

OUYANG L J,AN Z W,YANG W T,et al.Research Progress on Microstructure Characteristic of Interface Transition Zone of Concrete[J].China Concrete and Cement Products,2018(2):7-12.

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摘 要:总结了混凝土界面过渡区的主要形成机制、微观特性和影响界面过渡区性能的主要因素等方面的研究成果,归纳了界面过渡区厚度、微观硬度、孔隙率和孔隙分布状态、水泥水化产物、氢氧化钙晶向指数、未水化水泥含量和微裂缝密度等参数对混凝土界面过渡区特性的影响,指出了当前混凝土界面过渡区微观特性方面需深入研究的方向。 Abstract:The main formation mechanism and microstructure characteristics of the interfacial transition zone in normal temperature concrete which studied both at home and abroad are reviewed. The effects of microstructure thickness, micro hardness, porosity, distribution of pores, cement hydration products, orientation index of calcium hydroxide, unhydrated cement content and micro-crack density on the properties of interfacial transition zone of concrete are concluded. Finally, the future research directions of the interfacial transition zone in concrete are pointed out.
英文名 : Research Progress on Microstructure Characteristic of Interface Transition Zone of Concrete
刊期 : 2018年第2期
关键词 : 混凝土;界面过渡区;微观结构;表征参数;孔隙率
Key words : Concrete; Interface transition zone; Microstructure; Characterization parameters; Porosity
刊期 : 2018年第2期
DOI :
文章编号 : 1000-4637(2018)02-07-06
基金项目 : 国家自然科学基金项目(51708349、11672185);温职院面向温州510产业新技术应用项目(WZY510005);上海市大学生创新创业计划(SH2016112)。
作者 : 欧阳利军1,安子文1,杨伟涛1,丁 斌2,镇 斌1
单位 : 1.上海理工大学 环境与建筑学院,200093;2. 温州职业技术学院 建筑工程系,325035

欧阳利军1,安子文1,杨伟涛1,丁 斌2,镇 斌1

欧阳利军,安子文,杨伟涛,等.混凝土界面过渡区(ITZ)微观特性研究进展[J].混凝土与水泥制品,2018(2):7-12.

OUYANG L J,AN Z W,YANG W T,et al.Research Progress on Microstructure Characteristic of Interface Transition Zone of Concrete[J].China Concrete and Cement Products,2018(2):7-12.

摘要
参数
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参考文献
引用本文
摘   要:总结了混凝土界面过渡区的主要形成机制、微观特性和影响界面过渡区性能的主要因素等方面的研究成果,归纳了界面过渡区厚度、微观硬度、孔隙率和孔隙分布状态、水泥水化产物、氢氧化钙晶向指数、未水化水泥含量和微裂缝密度等参数对混凝土界面过渡区特性的影响,指出了当前混凝土界面过渡区微观特性方面需深入研究的方向。
Abstract:The main formation mechanism and microstructure characteristics of the interfacial transition zone in normal temperature concrete which studied both at home and abroad are reviewed. The effects of microstructure thickness, micro hardness, porosity, distribution of pores, cement hydration products, orientation index of calcium hydroxide, unhydrated cement content and micro-crack density on the properties of interfacial transition zone of concrete are concluded. Finally, the future research directions of the interfacial transition zone in concrete are pointed out.
关键词:
混凝土;界面过渡区;微观结构;表征参数;孔隙率
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(1)对水泥基复合材料ITZ特性的深入研究需系统了解ITZ厚度、ITZ微观硬度、ITZ孔隙率及孔隙分布状态、水泥水化产物、CH晶向指数、未水化水泥含量、ITZ微裂缝密度和离子迁移系数等关键指标参数。
(2)超细外掺矿物产生的物理和化学作用可起到改善常温下混凝土ITZ微观特性的作用,提高混凝土的抗渗、抗有害离子侵蚀等耐久性能以及混凝土宏观力学性能。但掺入各类外掺料的混凝土在高温作用后其ITZ微观特性如何变化还需要进行深入研究。
(3)温度损伤前后,ITZ内微裂缝扩展情况可通过裂缝密度指标来衡量。高温后混凝土材料ITZ微观性能的变化与混凝土随机损伤过程之间的联系以及高温后混凝土ITZ微观特性的变化对混凝土中离子传输性能的影响有待进行定量分析。
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欧阳利军,安子文,杨伟涛,.混凝土界面过渡区(ITZ)微观特性研究进展[J].混凝土与水泥制品,2018(2):7-12.

OUYANG L J,AN Z W,YANG W T,et al.Research Progress on Microstructure Characteristic of Interface Transition Zone of Concrete[J].China Concrete and Cement Products,2018(2):7-12.

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