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Abstract
This research examined the properties of concrete containing grade 120 slag cement at replacement levels of 0%, 30%, and 50% and calcium nitrate added into the concrete mixes atsome percentages. The primary concrete properties studied were compressive strength, splittensilestrength. Material variations included four sources of ordinary Portland cement andtwo types of coarse aggregate. Strength properties were studied at room temperature and 40°Fmix and curing conditions.