Effect of Flue Gas Desulfurization Gypsum on the Properties of Calcium Sulfoaluminate Cement Blended with Ground Granulated Blast Furnace Slag

This work aims to investigate the effect of additional flue gas desulfurization gypsum (FGDG) on the properties of calcium sulfoaluminate cement (CSAC) blended with ground granulated blast furnace slag (GGBFS). The hydration rate, setting time, mechanical strength, pore structure and hydration produ...

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Bibliographic Details
Published in:Materials 2021-01, Vol.14 (2), p.382
Main Authors: Gao, Danying, Zhang, Zhenqing, Meng, Yang, Tang, Jiyu, Yang, Lin
Format: Article
Language:English
Subjects:
Blast furnace gas
Calcium
Cement
Desulfurizing
Flue gas
Flue gas desulfurization gypsum
GGBS
Granulation
Gypsum
Hydration
ISO standards
Porosity
Raw materials
Sulfoaluminate cement
Test methods
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Summary:This work aims to investigate the effect of additional flue gas desulfurization gypsum (FGDG) on the properties of calcium sulfoaluminate cement (CSAC) blended with ground granulated blast furnace slag (GGBFS). The hydration rate, setting time, mechanical strength, pore structure and hydration products of the CSAC-GGBFS mixture containing FGDG were investigated systematically. The results show that the addition of FGDG promotes the hydration of the CSAC-GGBFS mixture and improves its mechanical strength; however, the FGDG content should not exceed 6%.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma14020382