| 骨料种类对混凝土孔结构及微观界面的影响 |
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| 引用本文： | 石妍,杨华全,陈霞,李响,周世华. 骨料种类对混凝土孔结构及微观界面的影响[J]. 建筑材料学报, 2015, 18(1): 133-138 |
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| 作者姓名： | 石妍 杨华全 陈霞 李响 周世华 |
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| 作者单位： | 长江科学院三峡地区地质灾害与生态环境湖北省协同创新中心,湖北武汉,430010 |
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| 基金项目： | 国家自然科学基金资助项目（51109015，51479011，51139001）；“十二五”国家科技支撑计划项目（2011BAE27B00） |
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| 摘 要： | 基于RapidAir和MAP-BEI测试技术,对比研究了分别以玄武岩、砂岩和灰岩为人工骨料的大坝混凝土内部孔结构及界面特征.结果表明:配合比一定时,灰岩混凝土气泡数量最多,间距系数和平均孔径最小;砂岩混凝土气泡数量最少,间距系数和平均孔径最大,工程中应予以足够重视.界面Ca(OH)2的富集程度受骨料化学属性及物理性能(如长期吸水率)影响.上述3种骨料-浆体界面Ca(OH)2的富集程度为砂岩玄武岩灰岩,界面过渡区厚度为砂岩灰岩玄武岩,砂岩界面性能最薄弱.
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| 关 键 词： | 骨料种类 大坝混凝土 孔结构 界面过渡区 |
| 收稿时间： | 2013-08-13 |
| 修稿时间： | 2013-11-19 |
Influence of Aggregate Variety on Pore Structure and Microscopic Interface of Concrete |
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| SHI Yan,YANG Huaquan,CHEN Xi,LI Xiang and ZHOU Shihua. Influence of Aggregate Variety on Pore Structure and Microscopic Interface of Concrete[J]. Journal of Building Materials, 2015, 18(1): 133-138 |
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| Authors: | SHI Yan YANG Huaquan CHEN Xi LI Xiang ZHOU Shihua |
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| Affiliation: | Collaborative Innovation Center for Geo Hazards and Eco Environment in the Three Gorges Area,Changjiang River Scientific Research Institute, Wuhan 430010, China,Collaborative Innovation Center for Geo Hazards and Eco Environment in the Three Gorges Area,Changjiang River Scientific Research Institute, Wuhan 430010, China,Collaborative Innovation Center for Geo Hazards and Eco Environment in the Three Gorges Area,Changjiang River Scientific Research Institute, Wuhan 430010, China,Collaborative Innovation Center for Geo Hazards and Eco Environment in the Three Gorges Area,Changjiang River Scientific Research Institute, Wuhan 430010, China and Collaborative Innovation Center for Geo Hazards and Eco Environment in the Three Gorges Area,Changjiang River Scientific Research Institute, Wuhan 430010, China |
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| Abstract: | |
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| Keywords: | aggregate variety dam concrete pore structure interfacial transition zone(ITZ) |
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