Roof Tile Fragments As Substitute Of Fine Aggregate and Gypsum Powder As Substitute of Cement For Sustainable Concrete Production

Abstract This research refers to the production of samples which uses roof tile fragments and gypsum powder partially substitutes sand cement expected be qualified or close compressive strength fc’ 20 MPa quality concrete. The concrete was using as substitute for with amount 22,5%, 25%, 27,5% while are 10%, 20% 30%. results where most optimum variation fragment is 22,5% 10% powder. In this it has closest normal 19,04 MPa.