Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)

Korea Concrete Institute (한국콘크리트학회)
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Sulfate Attack and Its Deterioration Modes

황산염 침식과 성능저하 모드

  • Lee, Seung-Tae (Department of Civil Engineering, Kunsan National University) ;
  • Moon, Han-Young (Department of Civil Engineering, Hanyang University) ;
  • Kim, Seong-Soo (Department of Civil Engineering, Daejin University) ;
  • Lee, Chang-Soo (Department of Civil Engineering, University of Seoul) ;
  • Kim, Jong-Pil (Department of Civil Engineering, Hanyang University) ;
  • Hooton, R.D. (Department of Civil Engineering, University of Toronto)
  • Published : 2006.05.11
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Abstract

Until now, sulfate attack is not completely understood. The purpose of this study is to provide a fundamental data to understand deterioration mechanism by sulfate attack. Chemical processes for products formed by sulfate attack were explained in this study. ASTM C1012 test and microstructural observations such as XRD and BSE analysis were carried out to manifest behavior and role of the products formed during sulfate attack. Regarding the dominant causes of sulfate attack, the main deterioration modes could be divided into 3 types; (1) expansive type, (2) onion-peeling type, and (3) acidic type.

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