| 폐 패각과 정유 폐촉매를 사용한 Tricalcium Aluminate 클링커의 합성에 관한 연구 |
| 이건호, 송태웅 |
| 경남대학교 신소재공학부 |
| Study on the Synthesis of Tricalcium Aluminate Clinker from Waste Shell and Spent Oil-Refining Catalyst |
| Keon-Ho Lee, Tae-Woong Song |
| Division of Advanced Materials Engineering, Kyungnam University |
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| ABSTRACT |
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The clinkerbility and the behaviour of formation of $3CaO{cdot}Al_{2}O_3$ were studied using the mixture of waste oyster shell and spent oil-refining catalyst mainly by the mineral and microstructural observation. By virtue of the formation of $12CaO{cdot}7Al_{2}O_3$ at relatively low temperature and its successive reaction with CaO, the $3CaO{cdot}Al_{2}O_3$ clinkers were formed easily without affection of minor constituents contained in oyster shell. Thus clinkers were formed at $1400^{circ}C$ directly but began to melt incongruently at higher temperature above that. Aluminium hydroxide, however, was not desirable as an aluminous raw materials of the clinker because rapid melting occurs before $3CaO{cdot}Al_{2}O_3$ forms main clinker mineral. |
| Key words:
Triclacium aluminate clinker, Oyster shell, Spent oil-refining catalyst |
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