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ABSTRACT∶ The application of foaming agents for the fabrication of foam concrete has been practiced more than 50 years in China.The beneficial use of foamed concrete in construction industry can be justified due to improved thermal and acoustic insulation of buildings with associated reduction of dead loads on structures and foundations.Desirable properties of foam require the foaming agent to be synthesized with high foam production ratio, good foam stability and small bubble size in alkaline cement pastes.This paper provides a review of foam constituents, fabrication techniques, classification, and applications in foam concrete.The review also provide a comprehensive insight into possible development of foam in the construction industry today.