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US 9,475,732 B2Granted
Expanded lightweight aggregate made from glass or pumice
AssigneeThe Intellectual Gorilla GmbH
InventorsEvan R. Daniels, Per Just Andersen
Life of this patent
Estimating the term…
Abstract
An expanded lightweight aggregate has compositional ranges (Wt. % Range) of about: (a) 40 to 60% ground glass or pumice, 40 to 60% water, 3 to 15% sodium silicate, and 0.1 to 5% NaNO3 for the slurry; and (b) 50 to 85% ground glass or pumice, and 15 to 50% slurry for the granulator.
Claims25
An expanded lightweight aggregate formed from a mixture comprising:
- a first ground glass or pumice in the range of about 40 to 60% by weight percent for a slurry;
- a water in the range of about 40 to 60% by weight percent for the slurry;
- a sodium silicate in the range of about 3 to 15% by weight percent for the slurry;
- a NaNO3 in the range of about 0.1 to 5% for the slurry;
- a second ground glass or pumice in the range of about 50 to 85% by weight percent for a granulator;
- the slurry in the range of about 15 to 50% by weight percent for the granulator;
- and
- the expanded lightweight aggregate having a particle size comprising about 0-1 mm, 1-2 mm, 2-4 mm, 4-8 mm or a combination thereof.
5 more elements
An expanded lightweight aggregate formed from a mixture consisting essentially of:
- a first ground glass or pumice in the range of about 40 to 60% by weight percent for a slurry;
- a water in the range of about 40 to 60% by weight percent for the slurry;
- a sodium silicate in the range of about 3 to 15% by weight percent for the slurry;
- a NaNO3 in the range of about 0.1 to 5% for the slurry;
- a second ground glass or pumice in the range of about 50 to 85% by weight percent for a granulator;
- and
- the slurry in the range of about 15 to 50% by weight percent for the granulator.
4 more elements
A method for manufacturing an expanded lightweight aggregate comprising the steps of:
- mixing a first ground glass or pumice in the range of about 40 to 60% by weight percent with water in the range of about 40 to 60% by weight percent to produce a slurry;
- adding a sodium silicate in the range of about 3 to 15% by weight percent to the slurry;
- adding a NaNO3 in the range of about 0.1 to 5% to the slurry;
- forming aggregates in a granulator by feeding a second ground glass or pumice in the range of about 50 to 85% by weight percent with the slurry in the range of about 15 to 50% by weight percent;
- drying the formed aggregates;
- heating the dried aggregates together with a finely ground kaolin to a temperature of about 800 to 1400 degrees Celsius;
- and
- cooling the heated aggregates.
5 more elements
Dependencies are inferred from the claim text.