Behaviour of Hybrid fibre in RC column with basalt and E-glass fibre under axial loading

Abstract

This paper investigates the behaviour of the hybrid fibre, i.e. a combination of E glass and basalt fibre, added in the reinforced concrete column. A total of 6 columns were cast with Conventional Concrete (CC) and Hybrid Fibre Reinforced Concrete (HFRC) to study the structural performance of the column. The concrete was made of cement, manufacturing sand (m-sand), coarse aggregate as major ingredients. In the column, 2% of Basalt fibre along with the E-Glass fibre of 1% were added to the concrete to make the HFRC. Column was tested under universal testing machine with static axial load and deflectometer was placed at the sides of the column to measure the displacement. The axail and laterall deformation of the column was measured using the deflectometer. The strain of the column was determined with the recorded data. The stiffness of the column with respect to the loads was calculated.      The lateral buckling of the CC and HFRC columns were calculated and compared.Both CC and HFRC shows a similar mode of failure with the application of the load. The experimental results of the columns were compared with theoretical value and concluded with the performance column with and without fibre added.