Title: Fiber Composite Plates can Strengthen Concrete Beams

Author(s): H. Saadatmanesh and M. R. Ehsani

Publication: Concrete International

Volume: 12

Issue: 3

Appears on pages(s): 65-71

Keywords: beams (supports); bond (concrete to reinforcement); epoxy resins; flexural strength; plastics, polymers and resins; reinforced concrete; reinforcing materials; strengthening; tests; Materials Research

DOI:

Date: 3/1/1990

Abstract:
Discusses the behavior of concrete beams externally reinforced with epoxy-bonded glass fiber reinforced plates. The use of fiber composite plates eliminates the possibility of corrosion at the epoxy-plate interface and reduces the chance of bond failure. The success of this straightening technique depends on the type of epoxy used. The behaviors of four different types of epoxies with a wide range of ductilities are examined through test results of five beams. Substantial improvement in the cracking behavior and ultimate strength was observed for one of the beams in which the epoxy behaved satisfactorily.