PROCESS FOR PREPARATION OF LIGHT WEIGHT FOAMED BRICKS (L WFBS) UTILIZING RED MUD AND FLY ASH ADMIXTURES

摘要

A process for preparing constructional materials comprising the steps of: mixing 30 to 50% red mud, 50-70% fly ash and 0.50-2.0% foaming agent mixture and water to form a foamed mass; subjecting the said foamed mass to the step of self expansion through pore generation in moulds in the form of constructional bricks of any other shape of required size, air drying the constructional materials for 6-8 hrs or drying below 150°C, subjecting the dried constructional materials to the step of firing at a temperature range of 800-1100°C.