결정성장형 자기치유 고상캡슐을 혼합한 보수 모르타르의 품질 및 균열 치유 특성에 관한 실험적 연구
An Experimental Study on the Quality and Crack Healing Characteristics of Repair Mortar Containing Self-Healing Solid Capsules of Crystal Growth Type
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초록
본 연구에서는 보수 모르타르와 직접 혼합 가능한 결정성장형 자기치유 고상캡슐을 제조하였으며, 자기치유 고상캡슐이 혼합된 보수 모르타르의 품질 및 균열 치유 성능 특성을 평가하였다. 자기치유 고상캡슐을 혼합한 보수 모르타르의 테이블 플로우 및 공기량 평가 결과혼합율에 관계없이 테이블 플로우 및 공기량은 큰 영향이 없는 것으로 나타났다. 압축강도는 캡슐 혼합율이 증가할수록 강도가 감소하는 경향이 나타났다. 정수위 투수시험에 따른 균열 치유 특성 평가 결과 초기 투수량이 감소하는 결과가 나타났으며, 시간 경과에 따라 반응 생성물 발생하여 균열이 치유되는 것을 확인 할 수 있었다.
Abstract
In this study, self - healing solid capsules of crystal growth type which can be mixed directly with repair mortar were prepared, and the qualityand crack healing performance of repair mortar with self - healing solid capsules were evaluated. The table flow and the air flow rate of the repair mortarmaterial mixed with self-healing solid capsules were found to have no significant influence on table flow and air volume regardless of mixing ratio. Compressive strength tended to decrease with increasing capsule mixing ratio. As a result of evaluation of crack healing properties according to constantwater head permeability test, initial water permeability decreased, and reaction products were generated over time and cracks were healed.
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