| Title |
An Experimental Study on the Effect of Concrete Surface Treatment Methods on the Bond Strength of Metal Spray Coating |
| Authors |
Park, Jin-Ho ; Kim, Sang-Yeol ; Lee, Han-Seung |
| DOI |
https://doi.org/10.5659/JAIK_SC.2020.36.1.147 |
| Keywords |
Concrete Surface Treatment; Concrete Surface Roughness; Bond Strength; Metal Spray Coating |
| 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. |