Analysis Strength Improvement on 50 to 80 MPa Level High Performance Concrete

50~80 MPa급 고성능 콘크리트의 강도증진해석

  • 박병관 (청주대학교 건축공학과 대학원) ;
  • 이주선 (청주대학교 건축공학과 대학원) ;
  • 장기현 (청주대학교 건축공학과 대학원) ;
  • 최영화 (대구대학교 건축공학과) ;
  • 한민철 (청주대학교 건축공학과) ;
  • 한천구 (청주대학교 건축공학과)
  • Published : 2008.11.14

Abstract

This research performed strength improvement analysis after evaluating strength characteristics by estimated temperatures to evaluate the real time strength performance of 50 to 80 MPa high performance concrete equipped with heat resistance, and the results are as follows. The lesser W/B and the lesser target slump flow value difference, compression strength was shown to increase, and the more curing temperature becomes, the strength increased accordingly. According to the correlation review result of strength improvement analysis by estimated temperature change performed using logistic analysis model, the compression strength value predicted with logistic curve expression and the compression strength value measured in experiment were shown to have similar correlation, and the strength improvement analysis value by logistic model was shown to be estimated good when W/B is high.

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