| 骨料品种对混凝土界面结构及性能的影响 |
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| 引用本文： | 苏杰,董芸,杨华全. 骨料品种对混凝土界面结构及性能的影响[J]. 混凝土, 2019, 0(1): 97-100 |
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| 作者姓名： | 苏杰 董芸 杨华全 |
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| 作者单位： | 长江水利委员会长江科学院,湖北 武汉,430010;水利部水工程安全与病害防治工程技术研究中心,湖北武汉,430010;国家大坝安全工程技术研究中心,湖北武汉,430010 |
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| 基金项目： | 国家重点研发计划;中央级公益性科研院所基本科研业务费专项 |
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| 摘 要： | 基于显微硬度(MH)、等离子发射光谱仪(ICP)等各种微细观测试技术,对比研究了灰岩、玄武岩、砂岩、大理岩和花岗岩对混凝土界面结构及性能的影响。结果表明,界面过渡区显微硬度由高到低依次为灰岩>砂岩>花岗岩>玄武岩>大理岩;砂岩和灰岩是各种骨料中活性最强的,骨料不仅吸附大量离子,也释放离子,表明砂岩和灰岩骨料表面发生了化学反应。
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| 关 键 词： | 骨料种类 混凝土 界面性能 界面过渡区 |
Influence of aggregate variety on interface structure and property of concrete |
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| SU Jie,DONG Yun,YANG Huaquan. Influence of aggregate variety on interface structure and property of concrete[J]. Concrete, 2019, 0(1): 97-100 |
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| Authors: | SU Jie DONG Yun YANG Huaquan |
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| Affiliation: | (Changjiang River Scientific Research Institute,Wuhan 430010,China;Ministry of Water Resources Water Engineering Safety and Disease Control Engineering Technology Research Center,Wuhan 430010,China;National Dam Safety Engineering Technology Research Center,Wuhan 430010,China) |
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| Abstract: | Based on microhardness(MH),inductively coupled plasma atomic emission spectrometer(ICP)and other microscopic examination technology,the Influence of limestone,basalt,sandstone,marble and granite on the interface structure and properties of concrete were studied.The results show that the microhardness of the interfacial transition zone is limestone> sandstone> granite> basalt>marble;Sandstone and limestone are the strongest in all kinds of aggregates,aggregate not only adsorbs large amounts of ions but also releases ions,indicating that the surface of sandstone and limestone has a chemical reaction. |
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| Keywords: | aggregate variety concrete interface performance interfacial transition zone(ITZ) |
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