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| 摘要: |
| 利用显微硬度、背散射电子像以及扫描电镜能谱,研究了因微区泌水造成的混凝土不同尺寸骨料下方骨料-浆体界面过渡区性能的差异.结果表明,随着混凝土骨料尺寸的增大,其下方骨料-浆体界面过渡区中未水化水泥颗粒更少、孔隙率更大、Ca(OH)2更多. |
| 关键词: 骨料尺寸,微区泌水,界面过渡区,显微硬度,背散射电子像,扫描电镜能谱 |
| DOI： |
| 分类号:TU528.0 |
| 基金项目:国家自然科学基金
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教育部跨世纪优秀人才培养计划 |
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| Influence of Aggregate Size on Micro-bleeding and Microstructure of Interfacial Transition Zone |
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DONG Hua QIAN Chun-xiang
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| Abstract: |
| The performances of interfacial transition zone(ITZ) influenced by the micro-bleeding under different size of aggregates were investigated by micro-hardness, backscattered electron imaging and SEM-EDS.Result shows that the content of un-hydrated cement grains in ITZ decreases with the increase of aggregate size,while porosity and Ca(OH)_2 content increases. |
| Key words: aggregate size,micro-bleeding,ITZ,micro-hardness,backscattered electron imaging,SEM-EDS |
