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Service Life Prediction of Concrete Structures Exposed to a Sulfuric Acid Environment
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  • Service Life Prediction of Concrete Structures Exposed to a Sulfuric Acid Environment
  • Service Life Prediction of Concrete Structures Exposed to a Sulfuric Acid Environment
저자명
전종규,문한영,전찬기,송종화,Jeon. Joong-Kyu,Moon. Han-Young,Jeon. Chan-Ki,Song. Jong-Hwa
간행물명
콘크리트학회논문집
권/호정보
2007년|19권 3호|pp.385-389 (5 pages)
발행정보
한국콘크리트학회
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정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

In this study, it was investigated the resistance of OPC, 60% GGBS, 20% PFA and 10% SF mortar specimens against sulfuric acid corrosion. As an index for degree of acid corrosion, the corrosion depth was evaluated. Then, it was found that an increase in the duration of immersion and a decrease in the pH, as expected, resulted in a more severe corrosion irrespective of binders; 60% GGBS mortar specimen was the most resistant to sulfuric acid corrosion. From the laboratory testing of sulfuric acid corrosion, an empirical prediction model was suggested as a power function of time and the pH of sulfuric acid, and was applied to an assessment of concrete structures exposed to an acidic environment. It was found that the empirical model gave a more precise prediction of sulfuric acid deterioration of concrete rather than a conventional model, mostly used for predicting carbonation of concrete.