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US 12,043,585 B1Granted
Rapid-setting cellular backfill with calcium sulfoaluminate cement and other powder-sized filler materials
AssigneeFlashSet, LLC
InventorsStanley R. Peters, George Clarence Geal, III
Life of this patent
Estimating the term…
Abstract
A composition for backfilling a void. The composition may include between 40% and 65% air by volume, between 20% and 50% water by weight, between 5% and 50% calcium sulfoaluminate cement by weight, and between 20% and 55% filler by weight. The composition may have a compressive strength between 10 psi and 170 psi at four hours, a compressive strength between 20 psi and 310 psi at one day, and a compressive strength between 30 psi and 520 psi at twenty-eight days.
Claims12
A composition for backfilling a void comprising:
- between 40% and 55% air by volume;
- between 30% and 45% water by weight;
- between 5% and 25% calcium sulfoaluminate cement by weight;
- and
- between 35% and 55% filler by weight, where the filler is one or more of scrubbed ash, baghouse fines, and fly ash,
- wherein the composition has a compressive strength between 15 psi and 150 psi at four hours, a compressive strength between 20 psi and 310 psi at one day, and a compressive strength between 130 psi and 520 psi at twenty-eight days.
3 more elements
A composition for backfilling a void consisting essentially of:
- between 40% and 55% air by volume;
- between 30% and 45% water by weight;
- between 5% and 25% calcium sulfoaluminate cement by weight;
- and
- between 35% and 55% filler by weight, where the filler is one or more of scrubbed ash, baghouse fines, and fly ash,
- wherein the composition has a compressive strength between 15 psi and 150 psi at four hours, a compressive strength between 20 psi and 310 psi at one day, and a compressive strength between 130 psi and 520 psi at twenty-eight days.
3 more elements
Dependencies are inferred from the claim text.