Study on Properties of Alkali-Activated Concrete by Replacement of Fine Aggregate with Quartz Sand

Concrete is an extensively used material in the construction of structures. Ordinary Portland cement which is used in concrete emits lots of carbon dioxide. Production process of OPC alone contributes to 3% of world pollution. To drop the usage of cement and also for the use of by-products from various industries alkali-activated concrete (AAC) is used by replacing the cement with industrial by-products and using alkali activators, i.e., NaOH, Na2SiO3. The present study focuses on the mechanical and thermal properties of the alkali-activated concrete (AAC) with GGBS and fly ash as binders with NaOH and Na2SiO3 as activators and replacing fine aggregate with quartz sand.