Enhancement properties of fly ash-based geopolymer concrete using dune sand and glass fiber.

This paper investigates the enhancement of properties Geopolymer concrete based on fly ash utilizing dune sand as a fine aggregate and incorporating glass fiber. The utilization of fly ash and dune sand addresses sustainability and environmental concerns, while the addition of glass fiber aims to improve mechanical properties. The study includes experimental testing to evaluate compressive strength, flexural strength, splitting tensile strength, density, and water absorption of Geopolymer concrete specimens. The results demonstrate that the incorporation of glass fiber and 25% dune sand positively influences the strength of geopolymer concrete. The geopolymer concrete with glass fiber and 25% dune sand recorded the maximum splitting, flexural, and compressive tensile strengths over all curing ages, offering a promising approach to enhance the performance of sustainable concrete materials. [ABSTRACT FROM AUTHOR]