Patent ID: 11884591
Assignee: THE BOEING COMPANY
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B  E  Y | IPC B  C  E

Claim 0:
1. A permeable, reinforced pavement composition comprising:
a first quantity of a pavement material; and
a second quantity of a cured carbon fiber composite material (CCFCM) comprising carbon fibers incorporated with a thermoplastic binding polymer that is added to the pavement material to produce a permeable, reinforced pavement composition having improved characteristics and infiltration performance compared to characteristics and infiltration performance of a pavement material devoid of the second quantity of CCFCM;
wherein the second quantity of CCFCM includes CCFCM particles comprising a selected range of particle size fractions such that a carbon fiber content of the range of CCFCM particle size fractions relative to a percentage of the permeable, reinforced pavement composition is chosen so that the permeable, reinforced pavement composition has a desired water infiltration rate of from 200 inches per hour to 3,000 inches per hour, as measured by ASTM test standard C1701 at 7 days;
wherein a concentration of the second quantity of CCFCM ranges from 0.15 weight percent of CCFCM to 6 weight percent of CCFCM per total weight of the permeable, reinforced pavement composition;
wherein the second quantity of CCFCM comprises a range of CCFCM particle size fractions selected from the group consisting of: CCFCM particles smaller than 3.35 mm, CCFCM particles smaller than 3.35 mm and larger than 2 mm, CCFCM particles smaller than 2 mm and larger than 0.841 mm, and CCFCM particles smaller than 0.841 mm; and
wherein the permeable, reinforced pavement composition comprises a hardened porosity of from 15 weight percent air voids to 35 weight percent air voids per total weight of the permeable, reinforced pavement composition, as measured by ASTM test standard C1754.