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Rice Husk Ash
Known for its hygroscopic quality, Rice Husk Ash is used to condition soil. Light in weight, this husk is notable for its dark color. It contains elements like silicon dioxide, lignin, holocellulose and cellulose. The chemical composition of this husk depends on the method of its procurement and processing type. It helps to looses particles of soil to enhance solar energy absorption rate of ground which in turn promotes increase in soil temperature. Carbonated form of this husk ash is also required to safeguard melted steel against oxidation. Generally, industrial furnace and fluidized bed furnace are used to burn the rice husk to get ash. Good insulation properties, crust free nature, medium melting temperature, less sintering degree and high absorption capacity are some of its important attributes.
1) Rice Husk Ash is useful for lowering heat hydration level of concrete.
2) It is also used to reduce permeability level of concrete.
3) Good sulphate resistance properties.
4) Biodegradable quality.