| 液体速凝剂对水泥早期水化的影响研究 |
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| 引用本文： | 林宗良,张建纲.液体速凝剂对水泥早期水化的影响研究[J].混凝土与水泥制品,2011(11):16-19. |
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| 作者姓名： | 林宗良 张建纲 |
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| 作者单位： | 1. 江苏省建筑科学研究院有限公司,南京,210008
2. 江苏省建筑科学研究院有限公司,南京210008;江苏博特新材料有限公司,南京210008 |
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| 摘 要： | 通过凝结时间、早期抗压强度、水化热、水化产物形貌等研究了液体速凝剂对水泥早期水化反应历程的影响.结果表明,使用液体速凝剂的水泥浆体在水化的初始阶段形成了大量的水化铝酸钙晶体及针棒状的钙矾石,从而促进了水泥浆体的凝结.液体速凝剂增加了水泥早期产物中铝酸盐与硫酸盐的比例,加快了钙矾石(AFt)转化为单硫型硫铝酸钙(AFm)...
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| 关 键 词： | 液体速凝剂 凝结时间 早期水化 水化热 水化产物形貌 |
Influence Research of Liquid Setting Accelerator on Early Hydration of Cement |
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| LIN Zong-liang,ZHANG Jian-gang.Influence Research of Liquid Setting Accelerator on Early Hydration of Cement[J].China Concrete and Cement Products,2011(11):16-19. |
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| Authors: | LIN Zong-liang ZHANG Jian-gang |
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| Affiliation: | LIN Zong-liang,ZHANG Jian-gang |
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| Abstract: | The effect of liquid setting accelerator(LSA) on the early hydration of cement is studied by setting time,early compressive strength,early hydration heat evolution and hydrates morphology.The results indicate that at the beginning hydration,the cement paste with LSA produces a mass of hydrated calcium aluminates crystal and clubbed ettringite(AFt) crystal,which is the main reason of improving the cement paste setting.The LSA increases the ratio of aluminates and sulfate in the early hydration products of ce... |
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| Keywords: | Liquid setting accelerator Setting time Early hydration Hydration heat evolution Hydrates morphology |
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