UTILIZATION OF RICE HUSK ASH FOR COMPOSITE PANEL. ABSTRACT. Rice husk ash is used as a siliceous material to produce a composite panel with acoustic thermal insulation properties. The rice husk ash has about 90% of silica content. Sound absorption coefficient = 0.79 (at 2 KHz)
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a source of renewable energy.
The mixture of RHA and sodium silicate solution
Sodium silicate composite
Lees’ disc method
The micronised RHA