화학 혼화제의 감수 성능에 따른 2성분계 콘크리트의 품질특성 및압축강도 추정식에 관한 기초적 연구
The Fundamental Study on Quality Properties of Binary Blended Concrete according to Water Reducing Performance of Chemical Admixture and Estimation Equation of Compressive Strength
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초록
본 연구에서는 화학 혼화제 성능에 따른 2성분계 콘크리트의 품질특성을 평가하기 위하여 화학 혼화제의 감수 성능 3수준(0%, 8%및 16%) 및 물-시멘트비 3수준(40%, 45% 및 50%)에 따른 플라이애시 및 고로슬래그 미분말을 사용한 2성분계 콘크리트 배합을 제조하였다. 신뢰성 확보를 위하여 콘크리트 배합은 3회 반복실험을 실시하였다. 실험결과, 화학 혼화제 성능에 따른 압축강도는 약 20% 이상의 압축강도차이가 발생하였으며, 화학 혼화제의 성능이 콘크리트 품질에 큰 영향을 미치는 것으로 나타났다. 또한 화학 혼화제의 성능의 영향을 반영한압축강도 예측 모델식을 도출하였으며, 85% 이상의 높은 상관성이 있는 것으로 나타났다.
Abstract
In this study, binary blended concrete mix with fly ash and ground granulated blast furnace slag was prepared according to 3 level of waterreduction performance of chemical admixture (0%, 8% and 16%) and 3 level of water-cement ratio (40%, 45% and 50%) for evaluation of qualityproperties of binary blended concrete according to performance of chemical admixture. concrete mix was carried out repetition test of three times inorder to secure the reliability. As a result, compressive strength according to performance of chemical admixture was found that difference of strengthwas about 20% occurred, chemical admixture was showed that a great influence on qualities of concrete. In addition, reflected the effect of performanceof chemiacal admixture, prediction model equations for concrete compressive strength was proposed, it was found that more than 85% of the highcorrelation.
참고문헌 (12)
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