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학술저널
저자정보
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대한건축학회 대한건축학회 논문집 - 구조계 大韓建築學會論文集 構造系 第24卷 第6號
발행연도
2008.6
수록면
101 - 108 (8page)

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Concrete Carbonation is usually measured as discoloration, as it has one of strengths to be economical, and simple and immediately confirm the given results in the spot. And, when Carbonation is measured as Phenolphthalein Solution, it is possible to confirm the scope of alkali through acid and basic reaction. Then, Concrete Basic Reaction is decided according to alkali concentration depending on Potassium Hydroxide Now that Carbonation is gradually produced toward inner side from outer side, with time going by, it doesn't work, to some adequate depth, in as fast time as compulsory facilitating test.
Thus, this research thesis made a comparative analysis on concrete phenomenal discoloration borderline following Phenolphthalein Solution, as part of a bid to measure Carbonation. Also, the thesis measured 'Concrete Alkali Concentration. The result showed that concrete coloring is classified into red and scarlet according to alkali concentration, and into borderline breakpoint of the speckle of scarlet and carbonation reaction. The higher chroma becomes with concrete decolorizing, the higher alkali concentration becomes.
Also, it was demonstrated that for long-term concrete discoloration borderline, discoloration degree can be determined by amounts of Potassium Hydroxide. Such result proved that limiting the extent of only red color as alkali, in the process of deciding on the scope of concrete alkali, can be served as an error in measuring service life of "Concrete Carbonation.

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Abstract
1. 서론
2. 이론적 고찰 및 실험계획
3. 실험 결과 및 고찰
4. 결론
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