After water, concrete is the second most used material in the world. Using life cycle assessments, concrete has typically been found to be 80% of a residential building by weight. Cement production consumes large amounts of energy, motivating a search for sustainable alternatives. Rice husk ash produced in controlled combustion has been found to be a viable replacement for cement. Renewable and sustainable, rice husks have the potential to produce energy while yielding an ash product for use in concrete.
