Foamed compositions for reducing freeze-thaw heave risk, and methods of utilizing and producing the same
AssigneeFlashfill Services, LLC
InventorsStanley R. Peters, Douglas Alex Hernandez, Darin R Duran, William S Caires, Brian P. Masloff, John Charles Fodor
Life of this patent
Estimating the term…
Abstract
A composition and method for reducing freeze-thaw heave risk over flash-filled voids are disclosed. A composition can include cementitious fly ash, water and cellular foam. The composition can optionally include a filler, e.g., Type F fly ash, or additional desired components. A method can include mixing the desired composition and applying the composition to a void. The method can optionally include determining the desired composition based on various factors.
Claims21
A composition for preventing ice lens formation consisting essentially of:
- between 5% and 75% air by volume;
- between 20% and 90% class C fly ash by weight;
- and
- between 15% and 60% water by weight;
- wherein the composition has a time to set of less than 40 minutes, a compressive strength of between 10 and 100 PSI after 4 hours, and a removability modulus of less than 1.8 after 28 days.
A composition for preventing ice lens formation consisting essentially of:
- between 10% and 60% air by volume;
- between 10% and 60% of class C fly ash by weight;
- between 15% and 75% of class F fly ash by weight;
- and
- between 20% and 60% water by weight;
- wherein the composition has a time to set of less than 40 minutes, a compressive strength of between 10 and 100 PSI after 4 hours, and a removability modulus of less than 1.8 after 28 days.
A composition for preventing ice lens formation consisting essentially of:
- between 10% and 60% air by volume;
- between 10% and 60% of class C fly ash by weight;
- between 15% and 75% of class F fly ash by weight;
- between 20% and 60% water by weight;
- and
- between 0.01% and 2.0% set retarder by weight;
- wherein the composition has a time to set of less than 4 hours, a compressive strength of between 0 and 80 PSI after 4 hours, and a removability modulus of less than 1.5 after 28 days.
Dependencies are inferred from the claim text.