This study is a basic study to CGS, which originates from the IGCC, as fine aggregate for concrete. The study measured density, water absorption ratio, solid volume percentage for grain shape, fineness modulus, grading curve of physical properties of fine aggregate. As a result, the density and solid volume percentage for grain sheet were found to be satisfactory in the aggregate for content (KS F 2527).Water evaluation ratio, fitness modulus, and grinding curve did not meet KS standards. Therefore, it is deemed necessary to adjust the grain size through sieving in case of fineness modulus and grinding curve.

Abstract
 1. 서 론
 2. 실험계획 및 방법
 3. 실험결과 및 분석
 4. 결 론

• 현승용(청주대학교 건축공학과) | Hyun Seung Yong 교신저자
• 한준희(청주대학교 건축공학과) | Han Jun Hui
• 이영준(청주대학교 건축공학과) | Lee Young Jun
• 이혁주(청주대학교 건축공학과) | Lee Hyuk Ju
• 박경택(청주대학교 건축공학과) | Park Kyung Taek
• 한민철(청주대학교 건축공학과) | Han Min Cheol