• Muhammad Marafa Ribah

Abstract: This research work studied the properties of concrete made with a blend of two brands of Portland cement. A grade 25 concrete was designed using BRE method and the water/cement ratio of 0.6 was used. The brands of cements used were Sokoto and Dangote cement at different percentage replacement to produce a concrete specimen. Cement mortar was tested for setting time which indicate that the final setting time of sample A1, sample A2, sample B, sample C, sample D were 201min, 187min, 204min, 191min, 187min respectively which fall within the range for total setting time of Portland cement. The fresh concrete was mixed manually and cast in 150mmx150mmx150mm steel moulds. The concrete specimens were cured by submersion in a water tank and were tested for compressive strength at the end of 3, 7 and 28 days. The research reveals that percentage blending of the two brands in respect to 75% SOK - 25% DNG as sample B, 25% SOK - 75% DNG as sample C, and 50% SOK – 50% DNG as sample D, sample B have the highest compressive strength of 27.85kN/mm at 28 days curing, followed by sample D specimen 23.30kN/mm at 28 days and sample C with the least compressive strength of 21.78kN/mm. It is recommended that sample B, C and D Blended brands of Portland cement used in this research can be used in structural construction.

Concrete, Blend of Portland Cement, Percentage Replacement, Setting Time, Compressive Strength

"Assessment of The Properties of Concrete Produced with A Blend of Two Brands of Portland Cement", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 10, page no.a397-a408, October-2021, Available :http://www.jetir.org/papers/JETIR2110049.pdf

"Assessment of The Properties of Concrete Produced with A Blend of Two Brands of Portland Cement", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 10, page no. ppa397-a408, October-2021, Available at : http://www.jetir.org/papers/JETIR2110049.pdf