Developing and Mechanical Properties of Low Fired and Geopolymer Bricks from Drinking Water Sludge with Different Contents of Added Fly Ash

Raw water treatment and coal-based power generation facilities produce a high level of waste to the environment annually. A low recycling scheme has worsened situation wastes usually end up in landfill. Further environmental degradation could be prevented by re-utilising for production alternative bricks. Additionally, development low-fired brick from can comparatively reduce energy consumption during firing stage. Geopolymer successfully replaced ordinary portland cement (OPC) without bargaining its mechanical quality. This study aimed investigate effect fly ash (FA) content geopolymerization on characteristics developed drinking sludge (DWS). set samples was fired at 500 °C while another prepared under alkaline condition geopolymer Resultantly, both sets demonstrated decrease linear shrinkage increased density with more FA. For samples, absorption decreased 38.6% 33.3% before rising again 45% FA content. However, continuous displayed as increased. The compressive strength bricks showed decreasing trend vice versa brick. 1.22 MPa 3.63 Comparatively, higher than These results reflect advantage incorporated geopolymerisation developing sustainable resources better environment.