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한기성,Han Ki Sung 大韓窯業學會 : 韓國洋灰工業協會 1973 시멘트 심포지움 Vol.1 No.-
Cement industry in Korea, has made a remarkable progress in recent years and now annual production capacity is about 9,000,000 tons. However, this large amount of cement is only one kind of general portland cement type I, and it is urgent problem for ceme