Mechanical properties of locally produced hybrid FRP bars as concrete reinforcement

Abstract EN

Using non-metallic fiber reinforced polymer bars as concrete reinforcement has gained an increasing interest in the last decade.

FRP bars provide a promising alternative for convention steel reinforcement, especially an harsh environment.

Extensive testing is still needed to produce FRP bars with improved tensile characteristics with regard to the brittle nature of the currently available products.

This research describes the process of manufacturing hybrid FRP bars using locally available glass fiber roving, nylon thread and polyester.

bars having a diameter of 9.5 mm were produced with fiber volume fraction of 63 %.

The mechanical properties of the bars including tensile, compressive, shear, tensile splitting and bond strength were experimentally evaluated by conducting the previous tests using new testing approaches.

The results showed that the produced bars were much cheaper and yielded improved mechanical properties, which make them an attractive as concrete reinforcements.