Journal of the Korean Recycled Construction Resources Institute (한국건설순환자원학회논문집)

Korean Recycled Construction Resources Institute (한국건설순환자원학회)
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The Crack Healing Properties of Cement Mortar Materials Using Crystal Growth Type Self-Healing Solid Capsules According to the Crack Induction Age

균열 유도 재령에 따른 결정성장형 자기치유 고상캡슐 활용 시멘트 모르타르의 균열 치유 특성

  • Choi, Yun-Wang (Department of Civil Engineering, Semyung University) ;
  • Nam, Eun-Joon (Department of Civil Engineering, Semyung University) ;
  • Kim, Cheol-Gyu (Department of Civil Engineering, Semyung University) ;
  • Oh, Sung-Rok (Institute of Technology, Newjust Co., Ltd)
  • 최연왕 (세명대학교 토목공학과) ;
  • 남은준 (세명대학교 토목공학과) ;
  • 김철규 (세명대학교 토목공학과) ;
  • 오성록 ((주)뉴저스트 기술연구소)
  • Received : 2020.10.20
  • Accepted : 2020.11.18
  • Published : 2020.12.30
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Abstract

In this study, three levels of solid capsules were prepared according to the composition ratio of core materials for the crystal growth type self-healing solid capsule, and a cement mortar was prepared with the crystal growth type self-healing solid capsule. The prepared solid capsule was mixed with 3% of the cement mass to evaluate the healing properties according to the crack induction age of the cement mortar. As a result of test, the crack healing properties according to the crack induction age of cement mortar mixed of solid capsules, it was confirmed that the self-healing performance of the cement mortar with the solid capsules was increased self-healing performance of 7 days than 28 days. This is because the unhydrated binder remains.

본 연구에서는 결정성장형 자기치유 고상캡슐의 코어조성비에 따라 3수준의 고상캡슐을 제조하였으며, 결정성장형 자기치유 고상캡슐을 혼합하여 시멘트 모르타르를 제조하였다. 제조된 고상캡슐은 시멘트 질량의 3%와 혼합하여 시멘트 모르타르의 균열 유도 재령에 따른 치유 특성을 평가하였다. 결정성장형 자기치유 고상캡슐을 혼합한 시멘트 모르타르의 균열 유도 재령에 따른 균열치유 특성을 평가한 결과, 7일 재령 동안 반응하지 않은 수화물질이 남아있기 때문에 고상캡슐과 혼합된 시멘트 모르타르의 자기치유 성능은 28일 재령 대비 7일 재령이 증가한 것으로 나타났다.

Keywords

Acknowledgement

본 연구는 2020년도 국토교통과학기술진흥원 국토교통기술연구개발사업(20SCIP-C159062-01) 지원사업으로 이루어졌으며, 이에 감사드립니다.

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