This study experimentally investigates the effects of partial replacements of jarofix for fine aggregate and graphene oxide for cement on the compressive and split tensile strengths of concrete. Jarofix is an industrial waste from zinc manufacturing, while graphene oxide is added as a cement additive. Concrete mixtures were prepared with 0%, 5%, 10%, and 15% jarofix replacement and 0%, 0.05%, 0.10%, and 0.15% graphene oxide replacement and cured for 7 and 28 days. Testing showed that 10% jarofix replacement and 0.10% graphene oxide replacement concrete exhibited the highest compressive and split tensile strengths. The combined replacement of 10% jarofix and 0.10% graphene oxide further