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http://dx.doi.org/10.3740/MRSK.2009.19.10.538

Hygroscopic Characteristic of Gypsum Boards Using Porous Materials  

Jeong, Eui-Jong (Green Ceramic Div., Korea Institute of Ceramic Eng. & Tech.)
Lee, Jong-Kyu (Green Ceramic Div., Korea Institute of Ceramic Eng. & Tech.)
Cheong, Deock-Soo (Department of Materials Science and Engineering, Dankook University)
Chu, Yong-Sik (Green Ceramic Div., Korea Institute of Ceramic Eng. & Tech.)
Song, Hun (Green Ceramic Div., Korea Institute of Ceramic Eng. & Tech.)
Publication Information
Korean Journal of Materials Research / v.19, no.10, 2009 , pp. 538-543 More about this Journal
Abstract
Active clays, Diatomite, bentonite and zeolite were used as porous materials for fabricating hygroscopic gypsum boards. Pohang active clay and Cheolwon diatomite showed excellent characteristics of moisture adsorption and desorption. These characteristics were caused by higher surface area and pore volume of porous materials. Moisture adsorption content of gypsum board with 10% active clay(P1) was 62.0 g/m$^2$, and moisture desorption content was 50.2 g/m$^2$. Moisture adsorption content of gypsum board with 10% diatomite(P) was 59.5 g/m$^2$, and moisture desorption content was 49.0 g/m$^2$. Moisture adsorption contents of gypsum boards with porous materials were higher than that moisture desorption contents of gypsum board without porous materials. Correlation coefficient between surface area and moisture adsorption content of gypsum boards was 0.98. Also, correlation coefficient between surface area and moisture desorption content of gypsum boards was 0.97. Moisture adsorption and desorption contents were influenced by surface area and pore volume of the gypsum boards, and surface area had a larger effect on moisture adsorption and desorption.
Keywords
moisture adsorption; porous materials; gypsum board;
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Times Cited By KSCI : 5  (Citation Analysis)
Times Cited By SCOPUS : 0
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1 S. K. Pang, W. J. Cho and J. Y. Sohn, J. Kor. Air conditioning and refrigeration engineering, 18(6) 486 (2006).   과학기술학회마을
2 J. H. Noh and S. M. Ko, J. Miner. Kor., 17(2) 135 (2004).   과학기술학회마을
3 S. H. Sim and Y. S. Kim, J. Kor. Env. Hlth., 32(4) 275 (2006).   과학기술학회마을
4 R. M. Barrer, Hydrothermal chemistry of zeolites, p. 1, R. M. Barrer, Academic Press, London and New York (1982).
5 Y. J. Choi, H. S. Shim and H. C. Shin, J. Kor. Housing Association, 18(4) 59 (2007).   과학기술학회마을
6 J. H. Noh and J. Miner. Soc. Kor., 19(4) 311 (2006).   과학기술학회마을