석탄폐석을 이용한 콘크리트의 역학적 거동

• 영문명: Mechanical Behavior of Coal Mine Waste Concretes
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 이봉학(Bong Hak Lee)
• 간행물 정보: 『산업기술연구』vol.16, 105~112쪽, 전체 8쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 1996.09.30

영문 초록

This paper presents coal mine waste (CMW) for use in concrete manufacture as a replacement of normal aggregates. The CMW in this study was collected from Sabook, Jungson-kun, Kangwon-do. Fine and coarse asggregates from CMW were prepared by crushing it in a jaw crusher and separating debris with #4 sieve. CMW aggregates showed good physical and mechanical properties with having specific gravity over 2.65, absorption less than 1%, and abration ratio below 20 %, but particle shape fo CMW was long or flat, which caused a poor workability in mixing. Therefore, to make workability better, a 1/4 of CMW coarse aggregate was replaced with normal aggregate which had a good particle shape, and a superplasticizer was added to the mix. Compressive strength and other mechanical properties of CMW concrete was very good. In conclusion, characteristics of CMW concrete was acceptable for use as a concrete structural material.

목차

ABSTRACT

1. 서론

2. 연구 동향

3. 재료 및 실험방법

4. 결과 및 고찰

5. 결론

참고문헌