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J. Korean Ceram. Soc. > Volume 44(9); 2007 > Article
Journal of the Korean Ceramic Society 2007;44(9): 483.
doi: https://doi.org/10.4191/kcers.2007.44.9.483
P2O5가 클링커 광물조성 및 품질에 미치는 영향
엄태형, 김원석, 김창범, 전병용, 이종열
쌍용양회공업(주) 기술연구소
The Influence of P2O5 on the Clinker Mineral Composition and Cement Quality
Tae-Hyoung Eom, Won-Seok Kim, Chang-Bum Kim, Byeong-Yong Jeon, Jong-Ryul Lee
Technology Research Center, Ssangyong Cement Industrial Co., Ltd
The influence of $P_2O_5$ on clinker mineral composition and the cement quality was investigated. When the sewage sludge was used as a raw material in place of clay, the presence of $P_2O_5$ in sewage sludge affects the mineral composition and the clinker quality. As the $P_2O_5$ concentration in raw mix increases, the burnability of clinker becomes worse and the alite decomposes into belite and free-CaO, so belite increases with the decrease of alite. The early strength of mortar decreases with the increase of $P_2O_5$ concentration. On the other hand, later-age strength increases with the increase of belite content. The setting time of cement was delayed with the $P_2O_5$ concentration above 0.6 wt%.섂돀잖⨀塨
Key words: Sewage sludge, $P_2O_5$, Clinker, Mineral composition, Alite, Belite
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