Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – Utilizing diverse solid particles
Patent
1994-05-20
1996-10-29
Dawson, Robert A.
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
Utilizing diverse solid particles
106731, 106737, 264 69, 264426, B28C 704
Patent
active
055694268
ABSTRACT:
A lightweight cement block and a method of producing the lightweight cement block, comprising the steps of mixing three parts by volume sawdust with water to form a first mixture having a relative moisture content in the range of 40% to 44%; adding one part by volume sand to the first mixture to form a second mixture; mixing the second mixture with water until the relative moisture content of the second mixture is in the range of 40% to 44%; adding one part by volume cement to the second mixture to form a third mixture; mixing the third mixture with water until the relative moisture content is in the range of 40% to 44%; forming the third mixture into a block. The resultant block comprises sawdust in the range of 30% to 70% by volume, sand in the range of 10% to 40% by volume and cement in the range of 10% to 40% by volume.
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Bulletin Research and Development Science and Technology, Supply and Services Canada, No. 219, Jun. 1991.
Derwent Publications Ltd., London, GB; Monolit Sci. Des. Cons. Assoc. Sep. 7, 1993 abstract only.
Stepan, Sestak; Stepan, Karel, Czech.--manufacture of multicomponent building material; Chemical Abstracts Jun. 13, 1990 abstract only 115:55763z.
Chemical Engineer's Handbook, fifth edition, .COPYRGT.1973 pp. 3-90,91.
Dawson Robert A.
Enviro Products Ltd.
Fors Arne I.
Imai Jeffrey T.
Jones Kenneth M.
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