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US 5,650,004 AGranted
Cement plaster composition, additive therefor and method of using the composition
OwnerMichael D. Yoninventor
Life of this patent
Estimating the term…
Abstract
There is disclosed a cement plaster composition wherein an additive having from about 10% to about 75% of a silicone treated powder and from about 90% to about 25% of a pozzalanic filler is combined with a type I Portland cement and a crushed aggregate to form a water repellent coating for plastering a swimming pool surface. The additive may also include rheology modifiers, water reducing agents, or set time modifiers.
Claims21
A cement plaster composition comprising:
- (a) from about 20% to about 50% by weight of a Portland cement;
- (b) from about 50% to about 80% by weight of aggregate;
- (c) from about 1.5% to about 3% by weight of an additive comprising from about 10% to about 75% by weight of said additive of a silane treated powder, from about 90% to about 25% by weight of said additive of a material comprising barium sulphate clay, ground silica, kaolin clay, bauxite, diatomaceous earth, bentonite, sepiolite or mixtures thereof, and from 0% to about 10% by weight of said additive is a water reducing plasticizer;
- and
- (d) the balance water.
2 more elements
A cement plaster composition comprising:
- (a) from about 30% to about 40% by weight of a Portland cement;
- (b) from about 60% to about 70% by weight of aggregate;
- (c) from about 1.5% to about 3% by weight of an additive comprising from about 25% to about 75% by weight of said additive of a silane coated kaolin clay, said coated clay having between 10% and 30% active silane;
- from about 75% to about 25% by weight of said additive of a material comprising barium sulphate clay, ground silica, kaolin clay, bauxite, diatomaceous earth, bentonite, sepiolite or mixtures thereof, and from 5% to about 10% by weight of said additive is a melamine formaldehyde polymer;
- and
- (d) the balance water.
3 more elements
A cement plaster additive comprising:
- from about 25% to about 75% by weight of a silane treated powder;
- from about 75% to 25% of a material comprising a barium sulphate clay, ground silica, kaolin clay, bauxite, diatomaceous earth, bentonite, sepiolite or mixtures thereof;
- and from 0% to about 10% by weight of said additive of a water reducing plasticizer.
A process for coating a surface of a swimming pool comprising:
- applying to said pool surface a cement plaster composition comprising:
- from about 20% to about 50% by weight of a type I Portland cement;
- from about 50% to about 80% by weight of crushed aggregate;
- from about 1.5% to about 3.0% by weight of an additive comprising from about 10% to about 75% by weight of said additive of a silane treated powder;
- from about 90% to about 25% by weight of said additive of a material comprising barium sulphate clay, ground silia, kaolin clay, bauxite, diatomaceous earth, bentonite, sepiolite or mixtures thereof, and from 0% to about 10% by weight of said additive of a water reducing plasticizer;
- and the balance water.
3 more elements
Dependencies are inferred from the claim text.