| 掺粉煤灰和不同外加剂对水泥水化放热过程的影响 |
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| 引用本文： | 卢飞峰,吴勇,甘莉芬,方永浩,何文,汪娟. 掺粉煤灰和不同外加剂对水泥水化放热过程的影响[J]. 材料导报, 2011, 25(6) |
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| 作者姓名： | 卢飞峰 吴勇 甘莉芬 方永浩 何文 汪娟 |
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| 作者单位： | 河海大学力学与材料学院;中国水利水电第七工程局有限公司科研设计院; |
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| 基金项目： | 国家科技支撑计划课题(2006BAJ04A04-02); 江苏省自然科学基金(Bk2009345); 教育部中央高校基本科研业务费资助 |
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| 摘 要： | 通过水化热测量研究了掺加缓凝型减水剂、引气剂和粉煤灰对硅酸盐水泥的水化放热过程的影响。结果表明,掺入缓凝型减水剂能不同程度地延缓水泥的水化放热过程,降低水泥的水化热,掺入引气剂对水泥水化放热几乎没有影响,而掺粉煤灰可显著降低水泥水化热。
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| 关 键 词： | 硅酸盐水泥 粉煤灰 高效减水剂 引气剂 水化热 |
Effect of Fly Ash and Admixtures on the Hydration Heat Evolution Process of Portland Cement |
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| LU Feifeng,WU Yong,GAN Lifeng,FANG Yonghao,HE Wen,WANG Juan. Effect of Fly Ash and Admixtures on the Hydration Heat Evolution Process of Portland Cement[J]. Materials Review, 2011, 25(6) |
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| Authors: | LU Feifeng WU Yong GAN Lifeng FANG Yonghao HE Wen WANG Juan |
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| Affiliation: | LU Feifeng1,2,WU Yong2,GAN Lifeng2,FANG Yonghao1,HE Wen2,WANG Juan2(1 College of Mechanics and Materials,Hohai University,Nanjing 210098,2 Sinohydo Bureau 7 Co.Ltd,Chengdu 611730) |
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| Abstract: | The effects of superplasticizers,air-entraining agent and fly ash on the hydration heat evolution process of Portland cement were investigated through direct hydration heat measurement.The results show that all the superplasticizers can reduce the hydration heat and retard the heat evolution process.The air-entraining agent has little effect on the hydration heat of the cement.But the fly ash remarkably reduces both the hydration heat and the heat evolution rate. |
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| Keywords: | Portland cement fly ash superplasticizers air-entraining admixture hydration heat |
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