US 11,891,769 B2
Systems and methods for using discarded (degraded) asphalt shingles (DAS) for stabilizing soils in building and surface constructions
Kurtney Knight, Poteet, TX (US); and James Epp, San Antonio, TX (US)
Assigned to Shingle Waste Solutions, Inc., San Antonio, TX (US)
Filed by Kurtney Knight, Poteet, TX (US); and James Epp, San Antonio, TX (US)
Filed on Jul. 6, 2022, as Appl. No. 17/858,940.
Claims priority of provisional application 63/218,520, filed on Jul. 6, 2021.
Prior Publication US 2023/0008668 A1, Jan. 12, 2023
Int. Cl. E02D 27/32 (2006.01); E02D 27/01 (2006.01)
CPC E02D 27/32 (2013.01) [E02D 27/01 (2013.01); E02D 2300/002 (2013.01); E02D 2300/0098 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A system for stabilizing otherwise expansive soils beneath a rigid structure constructed on or in the expansive soils, the system comprising:
a quantity of discarded and/or degraded asphalt shingles, the asphalt shingles arranged in stacked parallel layers to form a moisture barrier, the layers placed over and within the in-situ expansive soils; and
a quantity of select fill material positioned over the stacked parallel layers of asphalt shingles and below and around the rigid structure;
wherein the rigid structure and the select fill are predominantly supported on the asphalt shingles and therefore are not in direct contact with expansive soils that might swell when infiltrated with moisture.