Study on strength and porosity of alkali activated geopolymer based pervious concrete

The construction sector that contributes significantly to economic and social growth also has environmental issues, generating 30-40% of the global carbon dioxide emissions. Regular concrete employed in pavement prevents groundwater recharge and enhances flood hazards and soil erosion. Pervious concrete employed in pavement is a sustainable option by permitting water penetration. Geopolymer concrete, a novel material, is defined by its distinct chemical composition employing industrial waste products, providing economic sustainability, low energy requirement, workability, and environmental sustainability with low carbon emission. The current research discusses geopolymer pervious concrete employing a 70% fly ash and 30% Ground Granulated Blast Furnace Slag mixture, with a fly ash-alone version. This research will identify the compressive strength and split tensile strength of geopolymer pervious concrete and investigate the infiltration capacity and acid resistance of porous concrete in terms of various aggregate sizes and optimize the mix design for sustainable pavement application.