This study tries to determine sugarcane bagasse ash (SCBA) as a cement replacement material and its effect on the mortar compressive strength, water absorption, setting times, water consistency, soundness, and specific gravity of SCBA (sugarcane bagasse ash) -Portland limestone cement (PLC) blend at cement replacement from 0 - 8 wt.% at interval of 2 wt.%. Calcination of sugarcane bagasse and the obtained ash was conducted at 600°C at 120 mins with a higher Si + Al + Fe content from the analysis of ash obtained via X-ray fluorescence spectrometer and then employed as cement replacement material for this research. The compressive strength was carried out using strength testing machine; consistency and setting times of the blended cement samples were carried out using Vicat apparatus, while the soundness and specific gravity were conducted using Le Chatelier apparatus and density bottle respectively according to ASTM standards. Results showed an increase in the mortar compressive strengths of SCBA-cement blends was experienced as the curing days progressed from 3 to 14 days. PLC blended with SCBA produced an enhanced early strength due to the presence of lime which tends to accelerate the rate of formation of hydration assembly. Whereas at a high cement replacement of 6.0 wt.%, SCBA produced exceptional mortar compressive strength especially at 14 days despite clinker diminution indicating pozzolanic activity due to SCBA content. The optimal cement replacement with SCBA was observed at 4.0 wt.% in comparison with control especially at 7 days and did not adversely affect its strength owing to pozzolanic activity. There was an increase in the water consistency and setting times of SCBA cement pastes as SCBA content was increased from 2.0 – 8.0 wt.% which was attributed to unburnt carbon present in the ash due to its high loss on ignition, LOI. The elongated setting times could also be due to clinker diminution by cement replacement with SCBA and high-water demand. The SCBA-cement blends produced accelerated setting time results compared to PLC owing to lime present in SCBA which enhances early hydration. The volume expansion of the SCBA cement pastes experienced an increase as SCBA was increased due to lower density of SCBA compared to PLC and increased lime content due to increased SCBA content while the specific gravity diminished.