Performance Studies on Self Compacted Geo-polymer Hybrid Fiber Reinforced Concrete

Abstract

In the ongoing years, both industries and academics are concentrating towards the advancement of sustainable composites reinforced with fibres. The self-compacting geopolymer concrete with the addition of polyvinyl alcohol fibre (PVA) and steel fibre with ambient curing conditions incorporating with metakoalin, fly ash, GGBS showed better mechanical properties and durability properties of the hardened concrete. Geopolymer concrete is an innovative concrete in which cement is completely replaced due to which the emission of CO2 can be reduced, and it also assures the early strength of concrete and reduces the time. In the present study, the fresh properties and hardened properties of self-compacting geopolymer concrete with the combination of steel and polyvinyl alcohol fibre with the different percentages (0.1, 0.2, 0.3, 0.4%) are studied. Fresh properties were assessed using slump flow, T50 sec, L-box and V-funnel tests. Hardened properties were evaluated at 7 and 28 days using compressive strength, split tensile strength and flexural strength. It is observed that the workability of concrete with addition of fibres is reduced though there is an increase in hardened properties.