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US 5,536,310 AGranted
Cementitious compositions containing fly ash
AssigneeSandoz Ltd.
InventorsJohn W. Brook, David F. Factor, Frederick D. Kinney, Celeste L. McCallen, Andrea M. Young
Life of this patent
Estimating the term…
Abstract
A cementitious composition comprising (A) 10-30 parts cementitious material; (B) 50-80 parts fly ash weight; and (C) 1.5-8 parts hydroxycarboxylic acid and/or salt thereof.
Claims20
A cementitious composition consisting essentially of, per 100 parts by weight,
- Component A) 10-30 parts by weight cementitious materials;
- Component B) 50-80 parts by weight of class F fly ash having a calcium oxide content of less than 15% by weight;
- and
- Component C) 1.5-8 parts by weight, of a hydroxy di-or tricarboxylic acid salt.
1 more element
A cementitious composition consisting essentially of, per 100 parts by weight,
- Component A) 10-30 parts by weight cementitious material;
- Component B) 50-80 parts by weight of class F fly ash having a calcium oxide content of less than 15% by Weight;
- Component C) 1.5-8 parts by weight, expressed as free acid, of a hydroxy di-carboxylic acid or salt thereof;
- and
- Component D) 0.5 to 4% by weight of an alkali metal containing base.
2 more elements
Dependencies are inferred from the claim text.