Water resistant block from desulfurization gypsum

被引：46
|
作者：
Zhao Feng-qing [1 ]
Liu Hong-jie [1 ]
Hao Li-xia [2 ]
Li Qian [1 ]
机构：
[1] Hebei Univ Sci & Technol, Dept Chem, Shijiazhuang 050018, Peoples R China
[2] Hebei Chem & Pharmaceut Coll Vocat Technol, Shijiazhuang 050026, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2012年 / 27卷 / 01期
关键词：
Desulfurization gypsum; Water resistance agent; Block; High-calcium fly ash;
D O I：
10.1016/j.conbuildmat.2011.07.011
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The purpose of this study is to prepare water resistant block from flue gas desulfurization gypsum [FGD]. A water resistant agent prepared from granulated blast-furnace slag (GBFS), high calcium fly ash (HCFA) and some additives, was mixed with calcined desulfurization gypsum to form modified gypsum powder which is used to produce water resistant block. The optimized proportioning was obtained by using orthogonal test. The softening coefficient of the product prepared is over 0.80 with thermal conductivity coefficient of 0.15 W/(m K). The water resistance mechanism of this product was investigated by SEM and XRD. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：531 / 533
页数：3
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