Journal of the Korean Recycled Construction Resources Institute (한국건설순환자원학회논문집)

Korean Recycled Construction Resources Institute (한국건설순환자원학회)
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Performance Evaluation of Mortar Containing Mechanochemical Treated Self-Healing Admixtures

기계·화학 처리 자기치유 혼화재가 포함된 모르타르의 성능평가

  • 박동철 ((주)위드엠텍) ;
  • 권혁 ((주)위드엠텍 기술연구소) ;
  • 이정우 ((주)위드엠텍 기술연구소) ;
  • 황무연 ((주)위드엠텍 기술연구소) ;
  • 김태형 ((주)위드엠텍 기술연구소)
  • Received : 2021.08.18
  • Accepted : 2021.09.09
  • Published : 2021.09.30
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Abstract

In this study, the applicability of mechanochemical process for the manufacture of self-healing admixtures and the effect of mechanochemical process on the self-healing performance were evaluated. The self-healing admixtures were adopted as a highly reactive materials(expansive agent, swelling material and crystal growth agent) for mechanochemical processes. The self-healing admixtures for the mechanochemical process application were evaluated by X-Ray Diffraction and Fourier Transform Infrared Spectroscopy analysis, water permeability performance was used to evaluate self-healing performance of mortar. As a result of the evaluation, the self-healing performance of the WM(With-Mortar)3 sample to which mechanochemical process increased by 4.1% compared to the WM1 sample that was not treated, and the average healing index was 94.3%.

본 연구는 기계·화학적 에너지를 활용하는 메카노케미칼 공정기술을 자기치유 혼화재에 적용하기 위한 목적으로 진행되었다. 기계·화학적 공정기술을 자기치유 혼화재 제조 공정에 적용하여 치유 소재의 활성화 에너지를 증가시켜 치유성능에 미치는 영향을 확인하고자 하였다. 자기치유 모르타르에 사용한 자기치유 소재는 팽창/팽윤제를 주요 구성물로 선정하고 탄산염 촉진제와 무기염 첨가제를 기타 첨가제로 혼입하였으며, 기계·화학 처리공정 적용에 의한 치유 소재의 활성화도 및 개질화 반응이 가능한 재료로 선택하였다. 기계·화학 처리공정에 대한 자기치유 혼화재의 기초평가는 XRD, FT-IR 분석으로 확인하였으며, 자기치유 모르타르의 치유 성능평가는 정수위 투수시험을 이용하여 치유율을 확인하였다. 치유성능 확인결과 기계·화학 처리 공정을 적용한 WM3 시료(MC360min)가 공정처리 하지 않은 WM1 시료에 대비 치유성능이 4.1% 증가하였으며, 자기치유율은 평균 94.3%로 확인되었다.

Keywords

Acknowledgement

본 연구는 국토교통부 건설기술연구사업의 연구비 지원(21SCIP-C159059-02)에 의해 수행되었습니다.

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