In order to support the environment, sustainable construction is one solution that can be implemented by utilizing construction waste efficiently. Every year, tons of concrete waste is generated and it is necessary to utilize the waste as a recycled material such as recycled aggregate. Production of cement for concrete also increases carbon dioxide (CO2) emissions in the air resulting from factory processing. Fly ash is considered capable of replacing cement as a constituent of concrete since it has pozzolanic properties. Therefore, the splitting tensile strength test has been carried out on concrete made from recycled fine aggregate with the utilization of fly ash as a partial substitute for cement.

Keywords : Fly Ash, Recycled Fine Aggregate, Splitting Tensile Strength