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광물성 조강 혼화재를 사용한 조강형 저발열 콘크리트의 내구 특성
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  • 광물성 조강 혼화재를 사용한 조강형 저발열 콘크리트의 내구 특성
저자명
김경민,손호정,Kim. Kyoung-Min,Son. Ho-Jung
간행물명
大韓建築學會論文集 : Journal of the architectural institute of Korea : Structure & construction / 構造系
권/호정보
2014년|30권 7호|pp.55-62 (8 pages)
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

This study analyzes basic and endurance characteristics of mass concrete mixed with mineral binder and the result can be summarized as follow: For unhardened concrete slump, all cases are satisfied with the target range, however the high early strength and low heat case has little bit decreased tendency rather than other cases. And the air content also be satisfied with all cases within target range. For the compressive strength per material age as the characteristics of hardened concrete, Low heat-B mix shows the lowest compressive strength, and the other mixes show similar strength range, but in the initial material age, high early strength mix shows higher strength than low heat-A and low heat-B mix. For the drying shrinkage length change ratio, Low heat and low heat-B show the highest value as $-455{sim}-423{ imes}10^{-6}$, and high early strength and low heat mix shows the lowest value as $-410{ imes}10^{-6}$. In the carbonation depth of penetration according to change of mineral binder, the material age of 26 weeks shows the higher tendency regardless of mix as 15.4 mm~17.3 mm. For the endurance factor according to freeze-thaw cycle, all cases show the good result as higher than 85 % regardless of mineral binder. All cases show acceptable chloride of diffusion coefficient caused by increase of watertightness from hydration product of binder, and the high early strength and low heat mix shows the better result than the other binder mixes as $4.44{ imes}10^{-12}m^2/s$.