An overview of Utilization of Rice Husk Ash for Sustainable Concrete Manufacturing

The concrete is  one of the most important material due to growing construction industry.  Due to green building and sustainability requirement and scarcity of natural products, the researchers are investigating the innovative solutions to replace the cement partially with the economical methods. Rice Husk Ash (RHA) which shows an important role during the hydration process of cement which results as: (1)  amount of silica in RHA effects the incineration method, time and grinding time; (2) only RHA produced to be as amorphous, generally achieved at burning temperature of between 600-700 ^oC; and (3) by applying proper incineration technique RHA can be a partially cement replacement in concrete because of pozzolanic properties of RHA.

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