Assessment and Quality Control: The Bureau of Indian Standards has formed and distributed the particulars for keeping up the nature of item and testing reason in IS: 12894:2002.Compressive strength attainable 870-3626 psi (6-25N/mm2).Water assimilation: 5 – 12 %; Density is 12.5 lb/lady (1.5 gm./cc) Coefficient of relaxing (contingent on water consistency factor), Unlike regular dirt blocks Fly Ash blocks have high fondness to solidify mortar however it has a smooth surface, because of the gem development among block and the concrete mortar.