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US 4,308,068 AGranted
Concrete compositions
OwnerWilliam L. Coplinginventor
Life of this patent
Estimating the term…
Abstract
The addition of a mixture of sodium silicate and a nonionic surfactant to a pre-concrete mix results in concrete having greater compressive strength. When the mix additionally contains sawdust and clay, light weight, insulative building material, which applicant calls INSUL-WOOD, is provided.
Claims12
A pre-concrete mix comprising:
- 15 to 25 gallons sand;
- 10 to 20 gallons gravel;
- 5 to 15 gallons lime;
- 3 to 8 gallons cement;
- and,
- 3 to 5 gallons of water having dissolved therein from about 1.2 to 1.8 oz. sodium silicate and from about 1.5 to 2.5 oz. of a nonionic surfactant.
3 more elements
A pre-concrete mix comprising:
- 40 to 60 gallons sawdust;
- 20 to 30 gallons cement;
- 5 to 15 gallons lime;
- 1.2 to 5 gallons clay;
- and,
- 8 to 12 gallons water having dissolved therein from about 16 to 32 oz. sodium silicate and from about 4 to 6 oz. of a nonionic surfactant.
3 more elements
Dependencies are inferred from the claim text.