Study on flue gas desulphurization gypsum plaster

被引：2
|
作者：
Chen, Miaomiao [1 ]
Yu, Yunwei [2 ]
Feng, Chunhua [1 ]
Li, Dongxu [1 ]
机构：
[1] Nanjing Univ Technol, State Key Lab Mat Oriented Chem Engn, Coll Mat Sci & Engn, Nanjing 210009, Peoples R China
[2] Suzhou much new mat Ltd Co, Suzhou 212151, Peoples R China
来源：
FRONTIERS OF GREEN BUILDING, MATERIALS AND CIVIL ENGINEERING, PTS 1-8 | 2011年 / 71-78卷
关键词：
gypsum plaster; fly ash; retarder; water retention agent;
D O I：
10.4028/www.scientific.net/AMM.71-78.842
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Flue gas desulphurization (FGD) gypsum and fly ash are two kinds of solid waste in coal-fired power plant. The possible displacement content of fly ash in gypsum plaster was investigated in this paper. The effect of various chemicals retarders, such as Citric acid, sodium citrate and SC gypsum retarder, and water retention agent on the setting time, flexural strength and compressive strength of gypsum plaster was also studied. The results demonstrate that gypsum plaster has maximum mechanical properties and enough setting time at the rate of 20% fly ash replacing calcined gypsum; SC gypsum retarder effectively delays the setting time and has lower strength loss; The optimum level of water-retention agent for effective utilization of gypsum plaster is 0.2%.
引用
收藏
页码：842 / +
页数：2
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