Flexural Behaviour Of Geopolymer Concrete Slabs

Abstract

This Study Investigates The Flexural Performance Of M40 Grade Geopolymer Concrete (GPC) Slabs Reinforced With Glass Fibres (GF). Four Slab Specimens Of Size 600 Mm × 600 Mm × 50 Mm Were Cast And Tested Under Static Loading. The Mix Variations Included: (S1) Conventional M40 Concrete, (S2) M40 + GF, (S3) GPC M40 With 10 Molarity (10M) And (S4) GPC + GF - 10M,.Mechanical Properties Such As Compressive Strength, Flexural Strength, And Flexural Behaviour Were Evaluated. Among All Specimens, The Hybrid Fibre-reinforced GPC Slab (S4) Demonstrated The Best Performance. It Showed The Highest First Crack Load, Ultimate Deflection, And Enhanced Post-peak Behaviour Under Flexural Loading. The Static Test Results For Specimen S4 Revealed An Ultimate Load-carrying Capacity Of 36.27 KN, A Ductility Index Of 10.29, And A Toughness Index Of 29.26. These Results Indicate That The Integration Of Glass Fibres Significantly Improves The Load-bearing Capacity And Ductility Of GPC Slabs, Making Them A Viable Alternative To Conventional Concrete In Structural Applications

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