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US 3,951,674 AGranted
Concrete additive
AssigneeThe Procter & Gamble Company
InventorsJohn D. Curry, Francis L. Diehl, Joseph P. Nirschl
Life of this patent
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Abstract
Cementitious concrete compositions with improved compressive strength comprising a cellulose acetate sulfate set-retarding compressive strength increasing agent are provided.
Claims8
A cementitious composition having improved compressive strength, comprising a hydraulic cement and a water-soluble cellulose acetate sulfate additive at a cement:
- additive weight ratio in the range of 100:0.30 to 100:2.0.
Dependencies are inferred from the claim text.