Fly ash cemented bricks are a type of construction material made by incorporating fly ash, a waste product from coal combustion, into the brick manufacturing process Typically mixed with cement, sand, and water, these bricks offer enhanced eco-friendliness due to several factors: They recycle industrial waste (fly ash). Reduce energy consumption during manufacturing compared to traditional clay bricks Minimise the depletion of natural clay resources and lower carbon emissions by replacing some cement content.