Activation of fly ash and its effects on cement properties

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• 作者：Fan ; Yueming ; Yin ; Suhong ; Wen ; Zhiyun ; Zhong ; Jingyu
• 关键词：Alkali activated cement ; Fly ash ; Alkalis ; Ca(OH)₂
• 刊名：Cement and Concrete Research
• 出版年：1999
• 出版时间：April, 1999
• 年：1999
• 卷：29
• 期：4
• 页码：467-472
• 全文大小：1.78 M

文摘

A new method of fly ash activation with addition of Ca(OH)₂ and a small quantity of Na₂SiO₃ is presented. Scanning electron microscopy, differential thermal analysis, x-ray diffraction analysis, alkali-absorption test, and strength measurement show that the activity of activated fly ash by this method is obviously increased, which can accelerate cement early hydration and promote setting and hardening. Publisher: Elsevier Science Language of Publication: English Item Identifier: S0008-8846(98)00178-1 Publication Type: Article ISSN: 0008-8846 Cited by:

1. Hu, Shuguang; Guan, Xuemao; Ding, Qingjun,""Research on optimizing components of microfine high-performance composite cementitious materials""Cement and Concrete Research2002pp. 1871-1875
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2. Al-Akhras, Nabil M.; Abu-Alfoul, Bilal A.,""Effect of wheat straw ash on mechanical properties of autoclaved mortar""Cement and Concrete Research2002pp. 859-863
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3. Lee, C.Y.; Lee, H.K.; Lee, K.M.,""Strength and microstructural characteristics of chemically activated fly ash-cement systems""Cement and Concrete Research2003pp. 425-431
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Footnotes:

1. This article is being published without the benefit of the authors’ review of the proofs, which was not available at press time.