Influence of flue gas desulphurization gypsum on resistance of permeability of slag concrete

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作者：
Key Laboratory of Advanced Civil Engineering Materials of the Ministry of Education, Tongji University, Shanghai 200092, China [1 ]
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来源：
Tongji Daxue Xuebao | 2009年 / 5卷 / 656-659期
关键词：
Chloride ion penetration - FGD gypsum - Flue gas desulphurization - On-resistance - Penetration resistances - Slag concrete;
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摘要：
An investigation is made into the effect of flue gas desulphurization (FGD) gypsum used in slag concrete on the gas permeability and chloride ion penetration property of the concrete. The results show that the strength of slag concrete can be enhanced if adding FGD gypsum. The coefficient of gas permeability of concrete declines and the chloride ion penetration resistance improves as well. FGD gypsum used as a useful composition of admixture in slag concrete can improve the penetration resistance of the slag concrete and enhance the durability. Therefore, two sorts of by-product can be recycled.
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