원문정보
Experimental Study on Fire Resistant Capacity and Thermal Conduction of Construction Material Using the Circulation Resources
초록
영어
초 록
This is to show some basic data for introducing both circulated aggregate and recycled powder producing waste concrete. Standard-mixing design for 24MPa has been basically used and added and replaced normal aggregate with recycled powder made of waste concrete. In addition, polycarboxylate high-range water reducing agent has been used because recycled powder is missing adhesive strength and it is not compare with cement's adhesive strength. Compressive strength with powder mixture of 2%, 4%, 6%, 8%, and 10% has been decreased down to 80% of normal concrete material strength without recycled powder mixture. 200℃, 400℃and 600℃ heated concrete were compressively tested in order to find out concrete strength resistant to high temperature. heat capacity was also tested, based on the expectancy of its low conductivity. In addition, thermal conduction test was tested in order to find out concrete insulation. According to this test, when concrete was tested by fire resistance, it using the circulation aggregate was same resulted by concrete using the natural aggregate. also, recycle powder was not effecting insulation performance. but it is fit to standard on concrete insulation of building law.
키워드
목차
1. 서론
2. 재료의 특성 및 이론적 검토
2.1 미분
2.2 순환골재
2.3 혼화제
3. 실험의 이론적 배경
3.1 고온 노출시 콘크리트 강도특성
3.2 열전도율 이론
4. 연구방법
4.1 콘크리트 배합설계
4.2 실험방법
5. 실험결과
5.1 내화실험 결과
5.2 열전도율 실험결과
6. 분석
6.1 내화실험 분석
6.2 열전도율 분석
7. 결론
8. 참고문헌