Journal of the Korea Institute of Building Construction (한국건축시공학회지)

The Korean Institute of Building Construction (한국건축시공학회)
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A Study on the Crack Response and Waterproof Properties of High-Functional Water-Based Acrylic Paints for Exterior Walls

고기능성 외벽용 수성 아크릴계 도료의 균열 대응성 및 방수 특성 평가 연구

  • Kim, Yong-Ro (Housing & Building Tech. R&D Institute, DL E&C) ;
  • Ko, Hyo-Jin (Housing & Building Tech. R&D Institute, DL E&C) ;
  • Park, Jin-Sang (Korea Advanced Material Testing & Reaserch Institute Co., Ltd.) ;
  • Kim, Dong-Bum (Korea Advanced Material Testing & Reaserch Institute Co., Ltd.) ;
  • Lee, Sang-Wook (Korea Advanced Material Testing & Reaserch Institute Co., Ltd.)
  • Received : 2021.11.12
  • Accepted : 2021.11.26
  • Published : 2021.12.20
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Abstract

In this study, a comparative test was conducted on a specially developed elastic waterproof paint and general water-based paint for the purpose of responding to cracks occurring on the outer wall of concrete structures and improving watertightness. Through the comparative experiment, it was confirmed that the watertightness could be improved by securing the crack shielding property, and it was also confirmed that about 10 times more crack responsiveness was secured compared to general water-based paint. In addition, it was confirmed that the adhesion performance of at least 1.3MPa and resistance to a water permeation pressure of 0.1MPa were possible, confirming that stability was secured from a waterproofing perspective.

본 연구에서는 콘크리트 구조물 외벽에서 발생하는 균열 대응 및 수밀성 향상 목적으로 특수하게 개발된 탄성 방수성 도료와 일반 수성 페인트를 대상으로 비교시험을 진행하였으며, 이를 통해 탄성 방수성 도료의 성능 향상 정도를 확인하였다. 비교실험 결과, 균열 차폐성 확보를 통해 수밀성 향상이 가능한 것으로 확인하였으며, 일반 수성 페인트 대비 약 10배 이상의 균열 대응성을 확보한 것으로 확인하였다. 또한, 최소 1.3MPa의 부착성능 및 0.1MPa의 투수압에도 저항이 가능한 것으로 확인하여 방수적 측면에서 안정성을 확보한 것으로 확인하였다.

Keywords

Acknowledgement

This work is supported by the Korea Agency for Infrastructure Technology Advancement(KAIA) grant funded by the Ministry of Land, Infrastructure and Transport(Grant 21ORPS-B158109-02).

References

  1. Han YJ, Oh KH, Kim SY, Kim BI, Oh SK. Consumer awareness analysis of residential building underground structure leakage prevention measurements. Journal of the Korea Recycled Construction Resource Institute. 2016 Dec;4(4):379-88. https://doi.org/10.14190/JRCR.2016.4.4.379
  2. Hur SH, Kim YA, Hwang MH, Kim YS. A study on the criterion to evaluate the defect of appearance caused by concrete crack on the apartment house. Journal of the Architectural Institute of Korea. 2010 Apr;26(4):103-112.
  3. Shim MS, Lee HJ. A study on the color controlled of painter's work. Journal of the Korea Institute of Building Construction. 2003 Mar;3(1):107-14. https://doi.org/10.5345/JKIC.2003.3.1.107
  4. Lee SY, Nam GY, Kim JH. Effects of water-repellent on the physical properties of water paint. Journal of the Korea Institute of Building Construction. 2014 Jun;14(3):259-65. https://doi.org/10.5345/JKIBC.2014.14.3.259
  5. Nam GY, Kim JH, Lee JY. Effects of water-repellent on the color of water paint. Journal of the Korea Institute of Building Construction. 2015 Dec;15(6):607-14. https://doi.org/10.5345/JKIBC.2015.15.6.607
  6. Han HK. Adhesive characteristics of water-paint and silane adhesive mixture. Journal of the Korea Academia-Industrial cooperation Society. 2015 Aug;16(8):5721-7. https://doi.org/10.5762/KAIS.2015.16.8.5721
  7. Bahn HY, Shim MS. An experimental study on the discoloration of exterior paint. Journal of the Architectural Institute of Korea. 1991 Oct;7(5):337-41.
  8. KS F 3211. Waterproofing membrane coating for construction. Seoul (Korea): Korean Standard Association; 2015. p. 12-4.
  9. KS F 4925. Cement mortar mixed liquid waterproofing agent. Seoul (Korea): Korean Standard Association; 2018. p. 4-5.
  10. LHCS 14 20 10 25. Korea Land & Housing Corporation Construction Specification: Repairing cracks in concrete [Internet]. Goyang (Korea): Korea Construction Standards Center. 2020 Dec 9. Available from: https://www.kcsc.re.kr/Search/ListCodes/5010#