Fundamental Study on Compressive Strength Recovery for Excessive High-volume Blast Furnace Slag Mortar

고로슬래그가 다량치환된 모르타르의 알칼리 처리에 의한 압축강도 회복 가능성 분석

  • Published : 2019.05.15

Abstract

The aim of the research is assessing the possibility of recovering the compressive strength of the mortar mixture replaced excessively high volume of blast furnace slag accidently. As a result of the experiment, in the case of compressive strength, painting sodium oxide showed higher compressive strength recovery effect than painting calcium oxide. As a curing temperature, 20℃ showed advanced result rather than 65℃. From the wet curing, the reaction was confirmed, deeper penetration depth was checked at 20℃ than 60℃ temperature. Therefore for the concrete mixture with excessively high volume of blast furnace slag, it is considered that painting sodium hydroxide and curing 20℃ can recover the compressive strength effectively.

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