Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Properties of Shrinkage Reducing Agent and Mortar with C12A7-based Slag and Petroleum Cokes Ash

C12A7계 슬래그와 석유 코크스 연소재를 사용한 수축저감재 및 모르타르의 특성

  • Chu, Yong Sik (Energy & Environmental Division, Korea Institute of Ceramic Eng. & Tech.) ;
  • Park, Soo Hyun (Energy & Environmental Division, Korea Institute of Ceramic Eng. & Tech.) ;
  • Seo, Sung Kwan (Energy & Environmental Division, Korea Institute of Ceramic Eng. & Tech.) ;
  • Park, Jae Wan (Energy & Environmental Division, Korea Institute of Ceramic Eng. & Tech.)
  • 추용식 (한국세라믹기술원 에너지환경소재본부) ;
  • 박수현 (한국세라믹기술원 에너지환경소재본부) ;
  • 서성관 (한국세라믹기술원 에너지환경소재본부) ;
  • 박재완 (한국세라믹기술원 에너지환경소재본부)
  • Received : 2013.04.18
  • Accepted : 2013.08.20
  • Published : 2013.09.30
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Abstract

In this study, petroleum cokes ash and $C_{12}A_7$-based slag were used for the shrinkage reduction and strength enhancement of mortar. The hydration properties of shrinkage reduction agents were analysed. The flow, change of length and compressive strength were experimented with mortar-added shrinkage reduction agents. As a result of this study, petroleum cokes ash : $C_{12}A_7$-based slag = 60~80% : 20~40% showed excellent results. In the case of mortar with 20% $C_{12}A_7$-based slag, the setting time and change of length were similar to Ref. mortar. The flow and compressive strength were superior to Ref. mortar. In the case of mortar with a 40% $C_{12}A_7$-based slag, the setting time was longer than Ref. mortar. The compressive strength of 3 days and 7 days were superior to Ref. mortar.

Keywords

References

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