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천연 자갈 콘크리트와 쇠석 자갈 콘크리트와의 강도 비교에 관한 연구
鄭海駿 大田工業高等專門學校 1971 論文集 Vol.8 No.-
The materials in concrete for building are made up of cement, gravel and sand, Among these gravels are divided into natural stone and small broken stone. The small broken stones ate mainly used for paving the road. And it is oftecn thought to be impossible to make concrete building without the natural stone. According to the development of constructional machines, it is possible for us to make various sizes of small broken stones, By combining these various sizes of stones in fitable percentages, we are able to make excllent concrete with good fineness modulus. This paper is, as the first step, the study on the conparison of their intensites when we make concrete by using the natural stones and small broken stones. It is pitiful that there are no good materials for the study of the small broken stone concrete and this field in korea. I hope this paper to be contributed to the construction of our country.