Earticle

초록

영어

In order to prevent spalling of high-strength concrete, this study conducted analysis of fire-resistant characteristics of high-strength concrete according to changes in mixture rates of 3 ingredient complex organic fibers. The results of the study are as follows. First, as characteristic of non-hardening concrete, the fluidity and air quantity satisfied all target ranges in all combinations. As characteristic of hardening concrete, compressed strength of Plain was shown to be 76.2 MPa, 103.1 MPa in aged 7 days and 28 days, respectively. Strength according to changes in combinations of complex organic fiber types did not result in any significant difference. As fire-resistant characteristics, spalling was generally shown to be prevented in various combinations with the exception of P0N0C5. As the mixture rate of PP and NY increased, or as the mixture rate of CL decreased, spalling performance was shown to increase. In addition, in terms of economical efficiency, among combinations preventing spalling, P0N1C4 was shown to be the most superior. Such results show that the optimal combinational ratios of the 3 ingredients to prevent spalling of high-strength concrete, in terms of analysis of fire-resistant characteristics and economical efficiency, the combination of PP 0.01%+NY 0.00%+CL
0.04% is most superior.

목차

Abstract
 1. 서론
 2. 실험계획 및 방법
  2.1 실험계획
  2.2 사용재료
  2.3 실험방법
 3. 실험결과 및 분석
  3.1 굳지 않는 콘크리트의 특성
  3.2 경화 콘크리트
 4. 결론

저자

• 한상윤 [ Han, Sang-Yoon | 청주대학교 건축공학과 석사과정 ]
• 손호정 [ Son, Ho-Jung | 청주대학교 건축공학과 박사과정 ]
• 백대현 [ Baek, Dae-Hyun | 청주대학교 건축공학과 박사과정 ]
• 한민철 [ Han, Min-Cheol | 청주대학교 건축공학과 조교수 ]
• 한천구 [ Han, Chun-Goo | 청주대학교 건축공학과 교수 ]

참고문헌