Fly Ash as Pozzolana

Pozzolans are defined as silicious and aluminous materials which in themselves possess little or no cementitious value but, will in finally divided form and in the presence of moisture chemically react with calcium hydrauxide at ordinary temperature to form compounds possessing cementitious properties.
The properties of pozzolananic materials which are to be used for the manufacture of pozzolana Cements, Concrete, Lime/Cement based bricks/blocks are governed by stipulated standards which differ from country to country. The requirement of Fly Ash for these applications in terms of pozzolanic properties is as follows:

Chemical Analysis