Supporting of Concrete bridge Damage by using Composite Materials

Abstract

Reinforced concrete is one of the most widely used modern building materials. The objective of this research is to study, experimentally behaviors and load-carrying capacity of reinforced concrete bridges externally strengthened and repaired with Kevlar Fiber Reinforced concrete (KFRC) in a compression test. The main aims of this research work are as follows: Experimentally investigate the comparison behavior of reinforced concrete deep beams strengthened with KFRC strips., Comparison between the behaviors of strengthened and repaired columns .six samples are used for this project, and three of these are made of concrete, three with a knock and three with reinforced by Kevlar mat, for testing concrete deep beams. the load-carrying capacity of repaired cracked deep beams by KFRC strips has also been investigated.