Bending performance of RC beams strenghtened with near surface mounted carbon fiber reinforced polymer (CFRP) plate or rod under long term saltwater exposure

• Published in: International Journal of Civil Engineering and Technology
• Main Author: Mishad A.; Hisbany M.; Hashim M.; Ibrahim A.; Saidin S.B.
• Format: Article
• Language: English
• Published: IAEME Publication 2018
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85052551492&partnerID=40&md5=63a89a9bb46442c813492ef7247369eb

Nowadays, Fiber Reinforced Polymer (FRP) becomes very popular in construction industry for repairing and strengthening structure because it has high tensile strength, long lasting, high durability, high corrosion resistance, low maintenance and lighter weight. This research studies the flexural performance of reinforced concrete beams strengthened with Carbon FRP plate and rod. The objectives of this research are to determine the maximum flexural strength of Reinforced Concrete Beam, to evaluate flexural strengthening of reinforced concrete beam with Carbon Fiber Reinforced Polymer (CFRP) plate and rod. It also to determine the flexural strength of Reinforced concrete beams that immerged into salt water. Four number of beams sample with dimension of 125mm x 300mm x 1800mm were prepared and mark as control beam, second beam, third beam and forth beam. Control beam was curing at normal environment condition, while second, third and fourth beam were cured in saltwater solution for 3 months. All beams were tested using four points bending test. 30% of maximum load from control beam applied to second, third and fourth beam to determine the pre-crack for the beam. Second and third beam were strengthened with CFRP plate using near surface mounted (NSM) method. Fourth beam strengthened with CFRP rod. The flexural strength for concrete beam for control beam are higher compared to second beam, third beam and forth beam. Plate-end debonding the failure pattern of the beam. Normal environment condition and saltwater solution did not give significant bad effect for the flexural performance of the beam. © IAEME Publication.