Mechanical Properties of Blast Furnace Slag Fineness Mortar according to Alkali Activator

알칼리 자극제 종류에 의한 고로슬래그 미분말 모르타르의 강도 특성

  • 김종희 (충남대학교 산업대학원 건축공학과) ;
  • 김규용 (충남대학교 건축공학과) ;
  • 신경수 (충남대학교 일반대학원 건축공학과) ;
  • 남정수 (충남대학교 일반대학원 건축공학과) ;
  • 구경모 (충남대학교 일반대학원 건축공학과) ;
  • 윤용상 (충남대학교 일반대학원 건축공학과)
  • Published : 2011.11.18

Abstract

The advantages of blast-furnace slag concrete may include lower hydration heating velocity, restraint on concrete temperature increase, long-age strength improvement due to latent hydraulic reaction, improved water tightness, and repulsion to chemical erosion. These advantages contribute to the high quality of the blast-furnace slag concrete. However, the blast-furnace slag concrete has its limitations as well. These disadvantages may include retarded setting and elongated retention of mold due to the weak strength of early-age. Nevertheless, much research is currently under way to improve the aforementioned issues. To improve activity of blast furnace slag powder, alkaline irritants has been used. In this study, we analyze effect on activity fineness and rate of substitution of Alkali Activator toward activity.

Keywords