Open AccessFlexural Performance of Precast Concrete Slab with Gfrp and Geogrid Reinforcement
Author(s) -
Ruba Carolin C*,
N. Mahendran,
T J Vijay
Publication year - 2020
Publication title -
international journal of recent technology and engineering
Language(s) - English
Resource type - Journals
ISSN - 2277-3878
DOI - 10.35940/ijrte.a2640.059120
Subject(s) - fibre reinforced plastic , reinforcement , precast concrete , slab , geogrid , materials science , structural engineering , flexural strength , composite material , durability , corrosion , finite element method , engineering
An Experimental Investigation was carried out to study the behavior of Glass fibre reinforced polymer bars (GFRP) and geo-grid reinforced precast concrete slab. Durability of reinforced concrete (RC) is mainly affected by corrosion of steel reinforcement. In Corrosive Environment, service life of GFRP and geo-grid much greater than that of steel. To overcome this, steel bars are replaced by GFRP and geo-grids materials as reinforcement. Two concrete slab specimens were cast with the dimension of 1500 ×600×125mm to study the flexure behavior. Among that, one slab specimen was cast with steel reinforcement. Another one specimen was cast with combination of GFRP bars as main reinforcement and geo-grid layer as secondary reinforcement. The specimens were tested for point loading test setup. Test results showed that the slab reinforced with combination of GFRP and geo-grid reinforcement significantly improved the energy dissipation properties by resisting force with high amount of displacement compared to conventional element. Analytical investigation was also carried out using finite element analysis to validate the force-displacement characteristics. The analytical results showed a good agreement with the experimental results.