Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
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An Experimental Study on the Effect of Concrete Surface Treatment Methods on the Bond Strength of Metal Spray Coating

콘크리트 표면처리 방법이 콘크리트 표면 금속용사 피막의 부착강도에 미치는 영향에 관한 실험적 연구

  • 박진호 (한국건설기술연구원 국민생활연구본부) ;
  • 김상열 (한양대학교 건축시스템공학과) ;
  • 이한승 (한양대학교 건축학부)
  • Received : 2019.10.02
  • Accepted : 2020.01.06
  • Published : 2020.01.30
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Abstract

The exterior finishing of reinforced concrete buildings is one of the important factors to prevent durability and prevent natural environment or disaster such as temperature, snow, wind, rain from the outside as well as external design of buildings. Finishing methods can be divided into wet and dry methods. The wet method using paint is relatively easy to construct, but it requires repair and reinforcement every 1 to 5 years and requires a lot of LCC for maintenance. Finishing method using panel has good durability, but it is difficult to install and expensive. Therefore, in this paper, we evaluate the bond strength for the application of the metal spray method in order to overcome the problems of existing methods. Experimental results show that the sandblast + surface roughness agent(S-R(Y)) has a roughness of 41.16 ㎛ and the bond strength is about 3.19 MPa, which is the highest bond strength. In addition, the grinding + surface roughness agent(G-R(Y)) application showed roughness of about 36.59 ㎛ and secured the bond strength performance of 2.94 MPa.

Keywords

Acknowledgement

Supported by : 한국연구재단

이 연구는 2019년도 한국연구재단 연구비 지원에 의한 결과의 일부임. 과제번호:No.2015R1A5A1037548

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