The versatility of concrete makes it the most desirable construction material in the construction industry. The increase in global population growth and urbanization leads to a high demand for more basic infrastructure. The high cost of concrete structures is largely influenced by cost of the constituent materials and it is an important constituent in the making of concrete There are other cementing materials which have shown the ability to improve the properties of concrete and also presents both environmental sustainability and economic benefits. For this study investigation into the suitability of using calcium carbide waste and metakaolin in concrete production, this investigation involves the replacement of cement with blend of calcium carbide waste and metakaolin in an increment of 0, 5, 10, 15 and 20%. Concrete cube containing CCW-MK was tested for strength at 3, 7, 14, 28 and 56 days of curing age. The optimum compressive strength was recorded at 10% CCW-MK content. 5% concentration of H2SO4 was used to cure the concrete for 28 days. Oxide composition test was done on the CCW and MK. The results revealed that CCW had a CaO content of 86.43% and MK had a sum of Al2O3, SiO2 and Fe2O3 as 98.6%. The workability of CCW-MK increases with increase as the dosage of CCW-MK increase. The compressive strength of CCW-MK concrete increased with an increase in the dosage of CCW-MK and curing period respectively. The retained compressive strength of CCWMK concrete cured in H2SO4 with an increase in the dosage of CCW-MK. Furthermore, the water absorption increases with an increase in the dosage of CCW-MK. Microstructural analysis of CCW-MK concrete was done with the aid scanning electron microscope equipment. The microstructure of the maximum compressive strength sample shows a denser, more homogenous and compact hardened concrete with respect to the control. It was concluded that blended concrete with sufficient strength can be achieved with the addition of CCW and MK blends can as supplementary cementing materials in concrete production.