Rice Husk Ash based project information on CD ROM
RHA is a general term describing all types of ash produced from burning rice husks. In practice, thetype of ash varies considerably according to the burning technique. The silica in the ash undergoesstructural transformations depending on the conditions (time, temperature etc) of combustion. At550°C – 800°C amorphous ash is formed and at temperatures greater than this, crystalline ash isformed. These types of silica have different properties and it is important to produce ash of thecorrect specification for the particular end use.