Reduction of Drying Shrinkage of Mortar and Concrete by Expansion of Rapid Cooling Slag Fine Aggregate

급냉 슬래그 잔골재의 팽창성을 활용한 모르타르 및 콘크리트의 건조수축저감에 관한 연구

  • Received : 2015.04.07
  • Accepted : 2015.05.07
  • Published : 2015.05.31


It is necessary to maximize the durability of Concrete for the underground structure because its maintenance and reinforcement are difficult. For cracks due to drying shrinkage of the concrete on the characteristics of the material, there is a need for an alternative in the deterioration phenomenon that occurs. In this study, fundamental properties including drying shrinkage of mortar and concrete were investigated to replace fine aggregate from cooling slag for reducing drying shrinkage of mortar and concrete. In the case of rapid cooling slag fine aggregate, it was effective to reduce and restrain initial shrinkage of mortar and concrete, and compressive strength was increased through the all specimen in proportion to its replacement ratio.


Drying shrinkage;Dtying shrinkag length change;Expansive admixture;Fine aggregate from rapid cooling slag;Shrinkage reducing agent


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