Open Access
Subscription Access
Fire Tests on Fiber Sheet Strengthened RC Beams using Geopolymers as Adhesive Agent
Abstract
This study presents experimental results of fire tests on one control beam and four FRP strengthened RC beams, using geopolymers and epoxy resin as adhesive agent, to investigate the influence of temperatures on effectiveness of fiber sheet-geopolymer strengthening systems. The thermal response and deflection evolution of these beams with time were monitored. The test results show that although geopolymer material possess better bond properties than epoxy resin at high temperatures, the beams strengthened by carbon fiber sheet-geopolymer systems did not exhibit good fire resistance as expected, due to the falling off of the thermal insulation. Appropriate measurements to avoid the falling off of the insulation are required.