Rice husk gives a good quality of pozzolanio ash containing silica, which is considered a good substitute for cement. It is prepared by first burning husk to form ash and then mixing it with lime and grinding it to a very fine powder. Cement is a very important building material, but today it is very much short in supply. With the increase in constructional activities its demand will also increase. The export demand is estimated to be 3 percent of the total production. The new entrepreneur can enter in this project.
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