Inexpensive Rod Mill for Grinding Rice Husk Ash.
Inexpensive Rod Mill for Grinding Rice Husk Ash. Background Rice husk ash is a pozzolana. A pozzolana is a natural cement. Rice husk ash is mostly silica. If rice husk is burnt at a temperature lower than 600° C, it is amorphous silica. This means that it is in a form that is soft and easy to grind. If burnt at a higher temperature it will be ...