| 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 |
|
|
|
|
|
| ABSTRACT |
|
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 돀잖⨀ 塨 |
| Key words:
Sewage sludge, $P_2O_5$, Clinker, Mineral composition, Alite, Belite |
|
PDF Links
Full text via DOI
Download Citation 
