EXPERIMENTAL INVESTIGATION ON USE OF BASALT AS ALTERNATIVE REINFORCEMENT IN TWO WAY SLAB – A REVIEW

Abstract

This study assesses the impact of basalt Fiber -reinforced concrete on exterior beam-column joint performance under cyclic loading. Basalt Fiber, known for superior efficiency, was used, with varied percentages (0.75%, 1%, and 1.25%) in high-performance M60 grade concrete. Mechanical tests evaluated   properties, while ductile detailing enhanced energy absorption. Findings show improved joint performance, reduced crack sizes with Fiber inclusion, and increased strength under cyclic loading. ^[3]

This study investigates large-scale two-way concrete slabs reinforced with Fiber-Reinforced Polymer (FRP) rebars, directly comparing their performance to conventional steel-reinforced concrete.

Assessing Carbon FRP (CFRP) and Basalt FRP (BFRP) as steel alternatives, the results indicate CFRP-RC and BFRP-RC slabs had around 7% and 4% higher cracking moment capacities than steel- RC slabs.^[4]

Distinct Behaviour was observed: BFRP-RC slabs displayed gradual load decline after the peak, while CFRP-RC slabs exhibited a sudden drop akin to steel-RC slabs. Notably, BFRP-RC slabs showcased

1.72 times higher ductility than CFRP-RC slabs. While steel-RC slabs failed due to flexural bending, FRP-RC slabs resisted bending but failed due to punching shear, with steel rebars yielding during failure while FRP rebars did not rupture. Validation against ACI standards was conducted for predictive accuracy on CFRP or BFRP reinforced slabs.