Effect of Aramid Fiber reinforced polymer and Carbon Fiber reinforced polymer Wrappings on the Mechanical Properties of M30 Concrete

Abstract

Fiber-reinforced polymer is an advanced composite material composed of fibers and resin. It is a cost-effective and efficient material for repairing both existing and new structures. Additionally, these composite materials exhibit exceptional mechanical properties, including strength, Impact resistance, stiffness, load-bearing capacity and flexibility. This experimental research aims to investigate the behaviour of AFRP and CFRP materials wrapped in different layers when subjected to mechanical and non- destructive testing. Concrete confirming to the M30 grade is used for this experimental study. To ensure consistent concrete quality throughout the study, various test specimens were cast and subjected to standard tests, including compression tests, split tensile tests, modulus of rupture, modulus of elasticity, and impact tests on hardened concrete. Additionally, Rebound hammer and UPV test are two important NDT methods used to determine the quality of concrete. The tests were conducted using various specimens, including cubes (150mmx150mm), cylinders (150mmx300mm), prisms (100mmx100mmx500mm), and discs (63.5mm x 152.4mm). The experimental results indicate that concrete specimens confined with CFRP exhibit higher strength compared to those confined with AFRP and unconfined specimens, in both single and double ply wrappings.

Keywords

• fiber reinforced polymer
• epoxy resin
• aramid fiber reinforced polymer
• carbon fiber reinforced polymer
• mechanical properties
• ndta
• single ply and double plies