Journal of the Korean Recycled Construction Resources Institute (한국건설순환자원학회논문집)

Korean Recycled Construction Resources Institute (한국건설순환자원학회)
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An Experimental Study on the Healing Performance of Cement Composites According to Mixing Ratio of Self-Healing Hybrid Capsules

자기치유 하이브리드 캡슐 혼합율에 따른 시멘트 복합재료의 치유성능에 관한 실험적 연구

  • Yun-Wang, Choi (Department of Civil Engineering, Semyung University) ;
  • Jun-Ho, Park (Department of Civil Engineering, Semyung University) ;
  • Yong-Jic, Kim (Department of Environment and Energy Engineering, Daejin University) ;
  • Sung-Rok, Oh (Research & Development Team, Newjust Co., Ltd.)
  • 최연왕 (세명대학교 토목공학과) ;
  • 박준호 (세명대학교 토목공학과) ;
  • 김용직 (대진대학교 스마트건설환경공학부) ;
  • 오성록 ((주)뉴저스트 기술연구소)
  • Received : 2022.11.20
  • Accepted : 2022.12.07
  • Published : 2022.12.30
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Abstract

In this study, the self-healing hybrid capsules were prepared, were mixed with 3 %, 5 %, and 7 % based on cement mass. The healing performance were evaluated according to mixing ratio self-healing hybrid capsule. As a result of the experiment, it was found that the crack healing performance improved as the mixing rate of the self-healing hybrid capsule increased, but the quality performance tended to decrease. Therefore, it is judged that using the mixing ratio of the hybrid capsule within 5 % reduces the quality performance to within about 10 % and secures about 90 % or more of the healing performance.

본 연구에서는 자기치유 하이브리드 캡슐을 제조하였다. 균열 자기치유 하이브리드 캡슐을 시멘트 질량 기준으로 3 %, 5 % 및 7 % 혼합하여 자기치유 시멘트 복합재료 배합을 진행하였으며, 자기치유 하이브리드캡슐 혼합율에 따른 품질 및 치유성능 평가하였다. 실험 결과, 자기치유 하이브리드캡슐을 혼합율이 증가할수록 균열 치유성능을 향상시키는 효과가 큰 것으로 나타났지만 품질성능이 감소하는 경향이 나타났다. 따라서 하이브리드 캡슐의 혼합율은 5 % 이내로 사용하는 것이 품질성능을 약 10 % 이내로 감소시키며, 치유성능 약 90 % 이상을 확보할 수 있을 것으로 판단된다.

Keywords

Acknowledgement

본 연구는 국토교통부 국토교통기술촉진연구사업(과제번호 : 22SCIP-C159062-03)지원에 의해 수행되었습니다.

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