| 水泥-粉煤灰复合胶凝材料水化特性研究 |
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| 引用本文： | 林灼杰,尹健,李益进.水泥-粉煤灰复合胶凝材料水化特性研究[J].铁道科学与工程学报,2005,2(6):76-82. |
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| 作者姓名： | 林灼杰 尹健 李益进 |
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| 作者单位： | 中南大学,土木建筑学院,湖南,长沙,410075;佛山路桥建设有限公司,广东,佛山,528041;中南大学,土木建筑学院,湖南,长沙,410075 |
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| 摘 要： | 研究了水泥-粉煤灰复合胶凝材料在等水胶比条件下的化学结合水、水化产物与硬化浆体显微结构，探讨了矿物外加剂C和激发剂D的掺入对水泥-粉煤灰复合胶凝材料体系的影响规律。研宄结果表明：矿物外加剂C、激发剂D的加入促进掺粉煤灰的水泥浆体早期的水化速度，改善了水泥石的孔结构，增大了水泥石的密实度，提高了硬化水泥石的早期抗折强度和抗压强度。
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| 关 键 词： | 粉煤灰 复合胶凝材料 激发剂 水化 早期强度 |
| 文章编号： | 1672-7029(2005)06-0076-07 |
| 收稿时间： | 2005-08-30 |
| 修稿时间： | 2005年8月30日 |
Study on hydration characteristics of cement-fly ash composite cementitious material |
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| LIN Zhuo-jie,YIN Jian,LI Yi-jin.Study on hydration characteristics of cement-fly ash composite cementitious material[J].Journal of Railway Science and Engineering,2005,2(6):76-82. |
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| Authors: | LIN Zhuo-jie YIN Jian LI Yi-jin |
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| Institution: | 1. School of Civil Engineering and Arehitecturel, Central South University, Changsha 410075, China; 2. Fushan Highway and Bridge Construction Company Limited, Fushan 528041, China |
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| Abstract: | The chemical combined water, hydration products and hardened cement paste microstmcture of cement-fly ash composite cementitious material were studied at the same water binder ratio. The effects of mineral admixture C and activator D on cement-fly ash composite cementitious material were also discussed. The research results show that the incorporation of mineral admixture C and activator D accelerate early-age hydration of cement paste with fly ash, improve the pore structure of hardened cement paste, enhance the degree of density of hardened cement paste, increase the early-age flexural strength and compressive strength of hardened cement paste, |
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| Keywords: | fly ash composite cementitious material activator hydration early-age strength |
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