The Resistance of Cement Mortar in Artificial Seawater

2배농도 인공해수에 대한 시멘트모르터의 저항성

  • 문한영 (한양대학교 토목공학과) ;
  • 김진철 (한양대학교 토목공학과 대학원) ;
  • 김홍삼 (한양대학교 토목공학과 대학원) ;
  • 이승태 (한양대학교 토목공학과 대학원)
  • Published : 1998.04.01

Abstract

Generally, the durability of the reinforced concrete structures reduce when they are constructed in marine environments. The Mg ions and sulfate ions in seawater cause chemical attacks in concrete and the cracks in concrete result from corrosion of steel due to chlorides. In this study, the mortar specimens made from 5 different types of cement were immersed in artificial seawater of 2 times concentration and then we measured the compressive strength, the length change and the weight change. As a result of this study, we found that the compressive strength ratio decreased in the immersed 56days. We also found the longer the immersed days were, the more the increase of weight ratio and the length change were.

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