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http://dx.doi.org/10.5345/JKIBC.2018.18.6.569

Evaluation of Adhesion Performance of High-Fireproofing Alumino-silicate Inorganic Mortar  

Cho, Hyeon-Seo (Department of Architectural Engineering, Korea National University of Transportation)
Lee, Gun-Cheol (Department of Architectural Engineering, Korea National University of Transportation)
Publication Information
Journal of the Korea Institute of Building Construction / v.18, no.6, 2018 , pp. 569-576 More about this Journal
Abstract
In modern society, a huge number of the buildings have been constructed with RC structure. RC structures have many structural instabilities due to earthquake, typhoon, construction fault, design phase errors. Therefore, many reinforcement methods are being implemented to solve this problem. In the reinforcement method, the organic epoxy adhesive used in the FRP reinforcing method is abruptly damaged when exposed to high temperature, which is directly connected to the fall of the reinforcing material. Therefore, the present study was conducted to develop inorganic refractory mortar with a certain level of adhesion ability to reduce the heat transferred to FRP reinforcement when exposed to high temperatures. As a result of the test, it showed high adhesion strength at room temperature condition with the inclusion of EVA resin, and showed no performance deterioration up to about $300^{\circ}C$ even under heating conditions. Also, it was confirmed that the backside temperature was lower as the thickness increased, and converged to a constant temperature of about $780^{\circ}C$ after 2 hours of heating.
Keywords
inorganic polymer; alumino silliacate; FRP adhesive; fireproof; bonding strength;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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