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http://dx.doi.org/10.5345/JKIBC.2016.16.6.497

Investigation on Properties of Cement Mortar Using Heat Treated Flue Gas Desulfurization Gypsum  

Chung, Chul-Woo (Department of Architectural Engineering, Pukyong National University)
Lee, Yong-Mu (Hanil Cement Co. Ltd.)
Kim, Ji-Hyun (Department of Architectural Engineering, Pukyong National University)
Kim, Young-Su (Department of Architectural Engineering, Pusan National University)
Publication Information
Journal of the Korea Institute of Building Construction / v.16, no.6, 2016 , pp. 497-503 More about this Journal
Abstract
Flue gas desulfurization gypsum is produced from emission process of fossil fuel power plant to remove sulfur dioxide ($SO_2$) from exhaust gas. Production of flue gas desulfurization gypsum in Republic of Korea has been increasing due to the enforced regulations by government agency. Since flue gas desulfurization gypsum has characteristic that is similar to that of natural gypsum, there is a strong possibility for flue gas desulfurization gypsum to replace the role of natural gypsum. However, consumption of such material is still limited, only used for agricultural purposes or to make gypsum boards, it is necessary to expand the use of this material more aggressively. In this research, the chemical and mineralogical properties of flue gas desulfurization gypsum were investigated, and flue gas desulfurization gypsum with heat treatment was used to make cement paste. According to the results, it was found that flue gas desulfurization gypsum used in this experiment was a very high purity gypsum, and shown to have similar property to that of natural gypsum. Heat treating flue gas desulfurization gypsum above $100^{\circ}C$ was shown to bring beneficial effect on both compressive strength and drying shrinkage
Keywords
flue gas desulfurization gypsum; heat treatment; compressive strength; drying shrinkage;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Park WC, Mun KJ, So SY, Soh YS, Kwon WT. Manufacturing of Cement Admixture using FGD Gypsum. Proceeding of the Korea Concrete Institute; 2007 May 3-4; Daegu, Korea. Seoul (Korea): The Korea Concrete Institute; 2015. p.979-82.
2 Li Y, Sadakata M. Study of gypsum formation for appropriate dry desulfurization process of flue gas. Fuel. 1999 Jul;78 (9):1089-95.   DOI
3 Tesareka P, Drchalovab J, Koliskoc J, Rovnanikovad P, Cernya R. Flue gas desulfurization gypsum: Study of basic mechanical, hydric and thermal properties. Construction and Building Materials. 2007 Jul;21(7):1500-9.   DOI
4 Beak BH, Han CG. Improving Quality of Eco-Mortar Incorporating Blast Furnace Slag and Recycled Aggregate Depending on Replacement Gypsum and Cement. Journal of the Korea Institute of Building Construction. 2015 Apr;15(2):193-200.   DOI
5 Rutherford PM, Dudas MJ, SameK RA. Environmental impacts of phosphogypsum. Science of The Total Environment. 1994 Jun;149(1-2):1-38.   DOI
6 Lee JJ, Ko DH, Mun GJ, Soh YS. An Evaluation on Basic Properties of Waste Phosphogypsum for Utilization as Construction Materials. Proceeding of Architectural Institute of Korea; 2001 Apr 28; Ansan, Korea. Seoul (Korea): Architectural Institute of Korea; 2001. p.361-4.