This research investigates the potential of using incinerated solid waste at 700°C as replacement for cement at percentage replacement levels of 5 - 40% at 7, 14 and 28 days curing duration. Tests conducted include: Sieve Analysis, specific gravity, chemical composition analysis, compacting factor and slump test, compressive strength and density test. Results obtained indicated that the incinerated fly ash is composed of mainly Silica, Aluminium oxide, Iron oxide and Calcium oxide. Workability test indicates that the higher the Incinerator Fly Ash addition, the lower the workability. Strengths obtained for compressive test indicates that with higher curing duration, the incinerated ash has the potential to be used as cement replacement in certain percentages