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Yam stem residues are used to produce affordable cementboard and have proven to be suitable alternative to wood products. Yam stem are processed into flakes; converted to strand; and then screened to remove impurities. The strands are treated in hot water to remove superfluous materials capable of inhibiting the setting and curing of cement. The strands, cement and additive are mixed together; formed inside a mould; and pressed to attain the target thickness. Products from this waste can minimize pressure on forests, reduce pollution, mitigate climate change, curb siltation of water ways, and protect land and marine animals.
Federal University of Technology
Akure, Ondo State Nigeria
University of Sao Paulo
Pirassununga Campus, Brazil
Pirassununga SP, Brazil