Concrete strengthened with agriculture waste products

04/15/2013 | Design News

Corn stover, wheat straw and rice straw are waste products of agriculture used as biofuels. The high-lignin ash left over from burning them is being used by researchers at Kansas State University to make concrete stronger and more eco-friendly. The researchers use the byproduct to replace 20% of the Portland cement by mass and in doing so make the cement 32% stronger. The researchers published an article in the Journal of Materials in Civil Engineering.

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