The paper, written by Prasanna Kumar Acharya and Sanjaya Kumar Patro, presents the potential of ferrochrome ash (FCA) as a supplementary cementitious material and air-cooled ferrochrome slag (FCS) as an alternate coarse aggregate.
ACI says: “Characteristics such as compressive strength, split tensile strength, bond strength, permeability, and acid resistance of concrete were addressed.”
This study revealed 47% of the ordinary Portland cement could be replaced by 40% FCA and 7% lime without a decrease in properties of the concrete mixture. In addition, 100% of coarse aggregate can be replaced by FCS aggregates.
According to ACI: “Microscopic studies such as scanning electron microscopy, energy dispersive X-ray spectrometry and petrography examination established the macrolevel results. Toxicity characteristic leaching procedure test established the environmental soundness.”