Rice Husk Ash with Low Carbon Content

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Title: Rice Husk Ash with Low Carbon Content

Author(s): S. Santos and L.R. Prudencio, Jr.

Publication: Special Publication

Volume: 229

Issue:

Appears on pages(s): 409-422

Keywords: high performance concrete; low carbon levels; rice husk ash

Date: 9/1/2005

Abstract:
This study was aimed at evaluating an industrial production system of rice husk ash (RHA) with low carbon level. The system, developed in partnership with a local industry, consists of a continuously rotating furnace that can reduce the carbon level of residual RHA through re-burning. Different temperature bands, retention time in the furnace interior, and grinding degree were studied. The results indicate the feasibility of producing a material with reduced carbon levels, which is highly reactive and can be commercially used in the production of high performance concrete.