Light weight composite building material made from waste...

Details Light weight composite building material made from waste... Light weight composite building material made from waste...

C - Chemistry, Metallurgy

04

B

C04B 18/16 (2006.01)

Patent

CA 2139805

A method of recycling waste gypsum wallboard into a light weight composite building material. The wallboard is ground into small pieces and mixed with sand, cement and water. For a material that floats, sand is omitted. For additional buoyancy, styrofoam may be added. Broken glass may be substituted for the sand in the mixture thereby providing a method of recycling both glass and drywall together into a composite building material. In addition a composite building material, manufactured from used waste gypsum wallboard, is provided.

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