ACI releases paper on Characteristics of Ferrochrome Waste Concrete

The American Concrete Institute (ACI) has released a paper called Bond, Permeability, and Acid Resistance Characteristics of Ferrochrome Waste Concrete.

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.”

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