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삼태산층 석회석을 사용한 시멘트 조합원료의 소성성과 클린커 성질에 관한 연구
최롱,안영필,Choi, Long,Ahn, Young-Pil 한국세라믹학회 1982 한국세라믹학회지 Vol.19 No.1
It was found that the burnability of raw mix and characteristics of clinker was affected by the difference in grades of limestones. The thermal decomposition temperature of raw mix which used low grade limestone was lower than that of high grade, and the fast formation of $C_2S$ was due to the rich content of calcite and quartz over critical grain size, which caused the bad effects in the burnability, but $C_3S$ was formed slowly. The structure of clinker had many pores, and the growth of clinker minerals was inferior.
최롱,안영필,Choi, Long,Ahn, Young-Pil 한국세라믹학회 1981 한국세라믹학회지 Vol.18 No.4
Experimental investigation has been carried out to study the characteristics of the various grade limestones in Samtaesan formation with the fundamental test (mineral compostion, thermal decomposition and etc.) and intrinsic reactivity test. It was shown that belite formation in low grade limestones is faster than high grade limestone, but alite formation has a contrary.
고 알루미나질 내화물 원료로서 연천산 홍주석의 이용에 관한 연구 (I) -홍주석의 산출상태 및 일반적특성-
안영필,최롱,Ahn, Young-Pil,Choi, Long 한국세라믹학회 1974 한국세라믹학회지 Vol.11 No.1
The andalusite that can be found in mica shist near YunChun deposits were studied by means of an optical microscope, X-ray diffraction, thermal analysis of DTA and TGA, chemical analysis and refractoriness test to find out an appropriate method of concentration and purification for the utilization as a raw material of high alumina refractories, with the results: 1. The andalusite are has chiefly contained andalusite, muscovite and biotitei in addition to small amounts of chlorite, kyanite, disapore, quartz, alumandite adn pyrite, which vary from sample to sample. 2. Most of andalusite have occurred as light-red colored columns which are estimated to be an average of 4 by 0.5m/m in length. 3. Samples of andalusite which were dressed by cobbing and hand picking in the deposits have contained an average of 42% andalusite.
신속소성 벽타일 소지의 개발에 관한 연구(제1보 투각섬석질 골석일-규회석- 점토계)
안영필,최롱,황정길,김건국,Ahn, Young-Pil,Choi, Long,Hwang, Jung-Gil,Kim, Kurn-Kook 한국세라믹학회 1976 한국세라믹학회지 Vol.13 No.2
Korean tremoitic talc, wollastonite and clay have been used to develop a wall tile body to appropriate to the fast firing process. Some of ceramic properties of the raw materials were investigated by X-ray diffraction, thermal analysis and chemical analysis. The body compositions were formulated from the range of 35~75% tremolitic talc, 0~30% wollastonite and 25~35% plastic clay. Thermal gravity analysis and thermal expansion were tested for each of unfired bodies to study the correlation between thermal dehydration and linear shrinkage during the firing procedure. Linear shrinkage and water absorption of the fired bodies at the various temperature were taken as a measures for determining the proper firing range of the bodies. Increasing the content of wollastonite and firing temperature, the thermal expansion of the fired body showed the gradual decrease, and the thermal expansion curves showed a tendency to straighten. These observations may be resulted from the fact that the amounts of diopside and anorthite formed were gradually increased and those of quartz relatively decreased. The optimum compositions of the wall tile bodies for fast firing are 30% clay, 10~20% wollastonite and 50~60% tremolitic talc.
요업공업에 있어서 국산저질골석의 이용에 관한 연구 (투각섬석질 골석-슬라그-점토계)
안영필,최롱,황정길,Ahn, Young-Pil,Choi, Long,Hwang, Jung-Gil 한국세라믹학회 1977 한국세라믹학회지 Vol.14 No.1
In our former paper, tremolitic talc, -wollastonite-clay system was studied. In this study blast furnace slag was used(B.F.S.) instead of wollastonite for developing a fast-firing wall tile body. The wall tile bodies consisting of tremolitic talc and B.F.S. asmajor constituents have been fired in the temperature range 1000-120$0^{\circ}C$. Some of these bodies have showed good properties for wall tile manufacture. According to the increased content of B.F.S the fired bodies have showed the decreased thermal expansion which was resulted from the fact that the amounts of diopside and anorthite were gradually increased and those of quartz relatively decreased. Being reasonable in low price and thermo-stable properties tremolitic talc and B.F.S. will be good materials for the fast-firing tile body.