활성황토를 사용한 콘크리트의 염소이온 침투 저항성에 관한 실험적 연구

Experimental Study on the Resistance of Chloride Infiltration of Concrete Using Activated Hwangtoh Admixture

  • 이강우 (충남대학교 대학원 건축공학과) ;
  • 장종호 (충남대학교 대학원 건축공학과) ;
  • 최희용 (충남대학교 대학원 건축공학과) ;
  • 구자술 (동양중앙연구소) ;
  • 황혜주 (목포대학교 건축조경학부) ;
  • 김무한 (충남대학교 건축공학과)
  • 발행 : 2001.11.01

초록

The Salt attack is one of the primary factors that cause the deterioration of durability in steel reinforced concrete structure. And to depreciate the deterioration from the Salt attack in concrete structure, pozzolanic materials are used widely in recent years. In this study, experiments about the resistance of chloride infiltration of concrete according to the replacement rations of Activated Hwangtoh and various pozzolanic materials(silica fume, fly ash, blast furnace slag and non Activated/Activated Hwangtoh) are performed and the results of this study were shown as follows; 1) As the replacement ratios of Activated Hwangtoh were getting higher, the strength of concrete was increased and in case of various pozzolanic materials, strength of Activated Hwangtoh in specimen was better than that of fly ash, blast furnace slag and non Activated Hwangtoh. 2) As the replacement ratios of Activated Hwangtoh were getting higher, the resistance of chloride infiltration of concrete was increased and in case of various pozzolanic materials, silica fume is better than any other pozzolanic materials and Activated Hwangtoh was better than that of fly ash, blast furnace slag and non Activated Hwangtoh.

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