| 模拟大体积混凝土条件下生成的钙矾石的形态 |
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| 引用本文： | 阎培渝,杨文.模拟大体积混凝土条件下生成的钙矾石的形态[J].建筑材料学报,2001,4(1):39-43. |
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| 作者姓名： | 阎培渝 杨文 |
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| 作者单位： | 1. 清华大学土木工程系,
2. 清华大学 |
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| 基金项目： | 国家自然科学基金!资助项目 (5 98780 2 7)，清华大学实验室开放基金 |
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| 摘 要： | 利用半定量XRD和SEM-EDS分析、观察了补偿收缩水泥砂浆在模拟大体积混凝土内部温湿度条件下的水化产物相组成和微观形貌，延迟钙矾石生成所导致的试件开裂是由于微晶状钙矾石在硬化砂浆中均匀膨胀所致。
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| 关 键 词： | 钙矾石 微结构 膨胀 大体积混凝土 |
| 文章编号： | 1007-9629(2001)01-0039-05 |
| 修稿时间： | 2000年8月21日 |
Microstructure of Ettringite Formed under the Simulated Condition of the Core of Massive Concrete |
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| YAN Pei yu,YANG Wen yan.Microstructure of Ettringite Formed under the Simulated Condition of the Core of Massive Concrete[J].Journal of Building Materials,2001,4(1):39-43. |
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| Authors: | YAN Pei yu YANG Wen yan |
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| Affiliation: | YAN Pei yu 1,YANG Wen yan 2 |
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| Abstract: | The phase composition and micro morphologies of hydration products of shrinkage compensating mortar were investigated under the simulated condition of the core of massive concrete using semi quantitative XRD and SEM EDS. The cracking of mortars induced by delayed ettringite formation is due to the uniform expansion of microcrystalline ettringite in the hardened mortars. |
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| Keywords: | delayed ettringite formation microstructure expansion SEM |
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