Reinforced cement sheet product containing no asbestos for fabri

Details Reinforced cement sheet product containing no asbestos for fabri Reinforced cement sheet product containing no asbestos for fabri

1981-02-11

1984-01-31

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 93, 106 99, C04B 735

Patent

active

044287755

ABSTRACT:
A fiber-cement product which is capable of being formed on a Hatschek machine consisting essentially of a Portland cement binder in the amount of between about 40% and 80% by weight, natural and/or synthetic fibers in an amount of between about 1% and 15% by weight, clay in an amount of between about 2% and 15% by weight, and poly(ethylene oxide) homopolymer in an amount of between about 0.03% and 0.5% by weight. The product may also contain silica and/or filler in an amount of between 10% and 40% by weight. The silica is generally used in a product which is to be autoclaved. The filler may be waste fiber-cement product or inert filler material.

REFERENCES:
patent: 3645961 (1972-02-01), Goldfein
patent: 3716386 (1973-02-01), Kempster
patent: 3753749 (1973-08-01), Nutt
patent: 4040851 (1977-08-01), Zeigler
patent: 4101335 (1978-07-01), Barrable
patent: 4111710 (1978-09-01), Pairaudeau et al.
patent: 4132555 (1979-01-01), Barrable
patent: 4199366 (1980-04-01), Schaefer et al.

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