Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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Properties of Shrinkage Reducing Agent used C12A7-Based Slag according to Content of Admixtures

C12A7계(系) 슬래그를 사용(使用)한 수축저감제(收縮低減劑)의 혼합재(混合材) 함량(含量)에 따른 특성(特性)

  • Park, Soo Hyun (Energy & Environmental Division, Korea Institute of Ceramic Eng. & Tech.) ;
  • Chu, Yong Sik (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.)
  • 박수현 (한국세라믹기술원 에너지환경소재본부) ;
  • 추용식 (한국세라믹기술원 에너지환경소재본부) ;
  • 서성관 (한국세라믹기술원 에너지환경소재본부) ;
  • 박재완 (한국세라믹기술원 에너지환경소재본부)
  • Received : 2013.04.25
  • Accepted : 2013.11.15
  • Published : 2013.12.31
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Abstract

In this Study, it was fabricated that shrinkage reducing agent and mortar used $C_{12}A_7$-based slag enhanced the shrinkage reduction and compressive strength. To reduce cement content, setting time, flow and compressive strength of mortar with varying content of fly ash and blast furnace slag were experimented. The flow increased and setting time delayed as the increase of fly ash and blast furnace slag content. And early strength was lower and long age strength was higher than that of mortar with low content of admixture.

본 연구에서는 수축저감 효과를 높이고, 강도를 증진시키기 위해 $C_{12}A_7$계 슬래그를 사용한 수축저감제 및 이를 이용한 모르타르를 제조하였다. 또한 시멘트 사용량을 줄이기 위해, 플라이애쉬와 고로슬래그의 함량을 변화시킨 모르타르의 응결시간, 플로우, 압축강도를 측정하였다. 플라이애쉬와 고로슬래그 함량이 증가할수록 플로우 값이 증가하였고, 응결시간이 지연되는 것을 확인할 수 있었다. 또한 혼합재 함량 증가에 따라 초기재령에서는 압축강도가 낮아지지만, 장기재령에서는 높은 압축강도 값을 나타내었다.

Keywords

References

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