Low elastic modulus and expansive well cement system: The application of gypsum microsphere
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- 作者：Huajie Liua ; liuhuajieupc@163.com" class="auth_mail" title="E-mail the corresponding author ; Yuhuan Bua ; buyuhuan@163.com" class="auth_mail" title="E-mail the corresponding author ; Ali Nazarib ; Jay G. Sanjayanb ; Zhonghou Shena
- 关键词：Well cement ; Gypsum microsphere ; Low elastic modulus ; Volume expansion ; Interfacial bonding strength
- 刊名：Construction and Building Materials
- 出版年：2016
- 出版时间：1 March 2016
- 年：2016
- 卷：106
- 期：Complete
- 页码：27-34
- 全文大小：3450 K
文摘
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We invent the method for preparing gypsum microsphere.
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Gypsum microsphere is used to achieve low elastic modulus and expansive well cement.
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Cement sheath with gypsum microsphere has brilliant resistance to stress and strain.
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Massive crystals formed by gypsum powder decrease interfacial bonding strength.