Journal of the Korean Recycled Construction Resources Institute (한국건설순환자원학회논문집)

Korean Recycled Construction Resources Institute (한국건설순환자원학회)
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A Study on the Self-heaing Properties of Inorganic-organic Additives with Recycling Sodium Acetate

결정성 염을 포함한 유⋅무기계 자기치유 소재의 결정 생성 효과에 따른 치유 특성 연구

  • 박동철 ((주)위드엠텍 ) ;
  • 권혁 ((주)위드엠텍 기술연구소) ;
  • 황무연 ((주)위드엠텍 기술연구소) ;
  • 김태형 ((주)위드엠텍 기술연구소) ;
  • 이강범 ((주)위드엠텍 기술연구소)
  • Received : 2022.11.18
  • Accepted : 2022.12.07
  • Published : 2022.12.30
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Abstract

In this paper, a study was conducted to improve self-healing and strength properties using sodium acetate. The developed inorganic-organic self-healing materials and recycled sodium acetate were manufactured to evaluate self-healing and permeability reduction properties. As a result of the experiment with recycled sodium acetate, the compressive strength of the material prepared with anhydrous and trihydrate at a ratio of 7:4 was higher than that of the mixture using anhydrous. It was confirmed that the compressive strength was improved by 3~7 %. In addition, the maximum permeability reduction rate was 92.6 %, which satisfied the self-healing properties.

본 논문에서는 구체방수 혼화재로 사용되는 아세트산나트륨을 활용하여 자기치유 성능 향상 및 강도 성능 개선을 위한 연구를 진행하였다. 선행연구로 개발된 유ㆍ무기계 자기치유 핵심소재와 재생 아세트산나트륨을 혼합 제조하여 자기치유 모르타르, 콘크리트의 기초성능 및 투수 저감 성능을 평가하였다. 재생 아세트산나트륨을 첨가 실험결과 무수화물 단독으로 사용한 배합에 비해 무수화물과 삼수화물을 7:4 비율로 혼합한 소재의 압축강도 개선 효과가 3~7 %로 확인되었다. 또한, 최대 투수감소율은 92.6 %로 자기치유 특성을 만족하는 결과를 확인하였다.

Keywords

Acknowledgement

본 연구는 국토교통부 건설기술연구사업의 연구비 지원(22SCIP-C159059-03)에 의해 수행되었습니다.

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