A Study on the Adhesive Performance of High-early Strengthening Polymer Cement Composites for Crack Repair of RC Structures

RC 구조물의 균열보수용 조강성 폴리머 시멘트 복합체의 접착성능에 관한 연구

  • Published : 2023.11.10

Abstract

The adhesion performance of PCCs for crack repair of RC structures was greater in the case of using ultra high-early strength cement than in the case of using ordinary Portland cement, and the effect of mixing silica fume was higher in the case of ordinary Portland cement than that of ultra high-early strength cement. On the other hand, 130% of W/C was more fluid than 80% of W/C in the same P/C 80%, which increased the fillability and improved the strength, but the strength improvement effect was the greatest in adhesion in flexure. Through this study, the basic characteristics of the adhesion performance of PCCs were identified, and based on this, it is necessary to induce an optimal mixing design that can increase adhesion performance through various mixing designs.

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Acknowledgement

본 논문은 2021년 과학기술정보통신부의 재원으로 한국연구재단의 지원을 받아 수행된 연구임(No 2021R1F1A1046181).

References

  1. 조영국, 홍대원, 권우찬, 김완기. RC 구조물의 균열 보수용 폴리머 시멘트 복합체의 접착특성에 관한 연구. 한국건축시공학회지. 2022. 제22권 1호. p. 23-34. https://doi.org/10.5345/JKIBC.2022.22.1.023