Effect of different kinds of CaSO4 whisker on the bending strength and hygroscopicity of gypsum board

被引：7

作者：

Chen, Chang ^{[1
]}

Wang, Yubin ^{[1
]}

Wang, Hua ^{[1
]}

Deng, Qianqian ^{[1
]}

Du, Lei ^{[1
]}

Gao, Guosheng ^{[1
]}

Luan, Fengchen ^{[1
]}

机构：

[1] Xian Univ Architecture & Technol, Sch Mat & Mineral Resources, Xian, Peoples R China

来源：

Progress in Industrial and Civil Engineering III, Pt 1 | 2014年 / 638-640卷

关键词：

gypsum board; CaSO4; whisker; bending strength; hygroscopicity;

D O I：

10.4028/www.scientific.net/AMM.638-640.1322

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Different kinds of hemihydrate calcium sulfate whiskers were fabricated by calcination method under the condition of 115-600 degrees C. And the density, moisture rate and mechanical properties of composites of gypsum and whisker were studied. The specific strength of composites was investigated. The results show that gypsum boards with whisker calcined at 115 degrees C and 300 degrees C have the maximum and minimum densities, which are about 1658 kg/m(3) and 1604 kg/m(3), respectively. Hydration ability of anhydrous calcium sulfate whisker is the strongest. The values of specific strength of gypsum board reinforced by different types of whiskers suggested that the porosity of the composites changed with the different kinds of whiskers, which agreed well with the moisture rate and mechanical properties.

引用

页码：1322 / 1325

页数：4

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