| Title |
Bond Capacity of Near-Surface-Mounted FRP in Concrete Corresponding to Fire-Protection Method |
| Authors |
Lim, Jong-wook ; Kim, Tae-hwan ; Seo, Soo-yeon |
| DOI |
https://doi.org/10.5659/JAIK_SC.2019.35.1.3 |
| Keywords |
Fire-protection method ; Near-Surface-Mounted (NSM) FRP ; Bond capacity ; Epoxy ; Glass transition temperature (GTT) |
| Abstract |
The purpose of this paper is to find the fire-protection method for keeping on the bond capacity of Near-Surface-Mounted (NSM) FRP under high temperature. Experiments have been carried out to evaluate the bond capacity of NSM FRP by using CFRP-plates and to confirm the heat transfer to the concrete block when the refractory insulation is attached to the surface of NSM FRP. Bond test of NSM FRP under room temperature was conducted to obtain the maximum bond strength. And then a heating tests were carried out with keeping the bond stress of 30% of the maximum bond strength. As a result, the bond capacity of NSM FRP was disappeared when the temperature at epoxy reached to its glass transition temperature (GTT). In order to secure the bond capacity of the NSM FRP, it is necessary to protect the front as well as side by using insulation materials. |