화학약품용액에 침지한 시멘트모르터의 물성변화

Properties of Cement Mortar Immersed in Chemical Solution

  • 문한영 (한양대학교 토목공학과) ;
  • 김진철 (한양대학교 대학원 토목공학과) ;
  • 김홍삼 (한양대학교 대학원 토목공학과) ;
  • 유정훈 (한양대학교 대학원 토목공학과) ;
  • 이승태 (한양대학교 대학원 토목공학과)
  • 발행 : 1999.04.01

초록

The 5 types of cement mortar was immersed in the various chemical solutions for 400 days and then the compressive strength and the length change were measured to consider the chemical resistance at required ages. Due to the effect of flyashe and GGBF slag, the compressive strength of blended cement mortar was higher than that of portland cement mortar at long ages. According to the result of length change, the mineral admixture in blended cement had an indluence on reducing the amount of C3A, the cause of making concrete expand, and it made the formation of cements mortar denser so that the length change was much smaller than that of the portland cement mortar. However, the OPC mortar immersed in Na2SO4 solution for 180 days shows 4 times bigger length change chante than the blended cement mortar.

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