Permeable pavement and cured carbon fiber composition and a related method

Patent metadata

Field	Value
Publication number	US-11884591-B2
Application number	US-201715639678-A
Country	US
Kind code	B2
Filing date	Jun 30, 2017
Priority date	Aug 26, 2016
Publication date	Jan 30, 2024
Grant date	Jan 30, 2024

Abstract

A permeable pavement and cured fiber composition and a related method are provided. The permeable pavement composition includes a quantity of pavement material, and a quantity of cured carbon fiber composite material (CCFCM) configured to be added to the pavement material to produce a reinforced composition having improved characteristics. An example of pavement material includes a pervious concrete material. The method includes providing a quantity of pavement material, and adding a quantity of cured carbon fiber composite material to the pavement material to produce a reinforced composition having improved characteristics.

First claim

What is claimed is:

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.

2. The permeable, reinforced pavement composition according to claim 1 , wherein the pavement material comprises pervious concrete.

3. A method of making a permeable, reinforced pavement composition, the method comprising:
providing a first quantity of pavement material;
providing a second quantity of cured carbon fiber composite material (CCFCM) comprising carbon fibers incorporated with a thermoplastic binding polymer;
separating the second quantity of CCFCM into CCFCM particles comprising a range of CCFCM particle size fractions; and
after separating, adding the separated range of particle size fractions of CCFCM to the pavement material, thereby producing 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 particles comprises a selected range of CCFCM particle size fractions such that-the amount of carbon fibers 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.

4. The method according to claim 3 , wherein the step of separating the second quantity of CCFCM into CCFCM particles comprises separating the CCFCM particles by mechanical deconstruction comprising shredding, then hammering or milling, and finally sieving to select a pre-defined range of CCFCM particle sizes.

5. The method according to claim 3 , wherein providing the first quantity of pavement material comprises providing a quantity of pervious concrete.

6. The permeable, reinforced pavement composition according to claim 1 , wherein the second quantity of CCFCM material comprises recycled CCFCM material.

7. The method according to claim 3 , wherein the second quantity of CCFCM material comprises recycled CCFCM material.

8. The permeable, reinforced pavement composition according to claim 1 , wherein the second quantity of CCFCM in the permeable, reinforced pavement composition ranges from about 0.15 weight % to about 0.45 weight %.

9. The permeable, reinforced pavement composition according to claim 1 , wherein the first quantity of pavement material comprises porous asphalt.

10. The method according to claim 3 , wherein providing the first quantity of pavement material comprises providing porous asphalt.

11. The permeable, reinforced pavement composition according to claim 1 , wherein the permeable, reinforced pavement composition comprises a hardened porosity ranging from 18 percent air voids to 28 percent air voids, as measured by ASTM test standard C1754.

12. The reinforced permeable pavement composition of claim 1 , wherein the CCFM particle size ranges from larger than 2 mm to smaller than 3.35 mm.

13. The reinforced permeable pavement composition of claim 1 , wherein the CCFM particle size ranges from larger than 0.841 mm to smaller than 2 mm.

14. The reinforced permeable pavement composition of claim 1 , wherein the CCFM particles are smaller than 0.841 mm.

15. The reinforced permeable pavement composition of claim 1 , wherein the pavement material comprises porous concrete with a concentration of CCFCM equal to 1.5% by volume; and wherein a % amount of increase in a compressive strength of the reinforced permeable pavement composition is equal to 187% when comparing a 28-day curing time to a 7-day curing time.

16. The reinforced permeable pavement composition of claim 1 , wherein the pavement material comprises porous concrete with a concentration of added CCFCM equal to 1.5% by volume; and wherein the porous concrete with added CCFCM has a split tensile strength that is 46% stronger than a tensile strength of a control porous concrete without added CCFCM.

17. The reinforced permeable pavement composition of claim 1 , wherein the pavement material comprises pervious concrete with a concentration of CCFCM equal to 1.5% by volume; and wherein the porous concrete with added CCFCM has an elastic modulus that is 46% greater than an elastic modulus of a control porous concrete without added CCFCM.

18. The reinforced permeable pavement composition of claim 1 , wherein the pavement material comprises porous concrete with a concentration of CCFCM equal to 1.5% by volume and wherein the porous concrete with added CCFCM has a water infiltration rate that is 190% greater than a water infiltration rate of a control porous concrete without added CCFCM.

19. The reinforced permeable pavement composition of claim 1 , wherein the pavement material comprises porous asphalt with a concentration of CCFCM equal to 3% by weight; and wherein the porous asphalt with added CCFCM has a split tensile strength that is 60% greater than a split tensile strength of a control porous asphalt without added CCFCM.

Assignees

• Boeing Co
• Univ Washington State

Inventors

• Englund Karl Richard
• Nassiri Somayeh
• Haselbach Liv Martha
• Li Hui
• Wen Haifang
• Fischer Kenneth W

Classifications

• C04B26/26

  Bituminous materials, e.g. tar, pitch {(C08L95/00 takes precedence)} · CPC title

• C04B20/0068 Primary

  Composite fibres, e.g. fibres with a core and sheath of different material · CPC title

• B28B3/02

  wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form · CPC title

• B28B11/245

  Curing concrete articles (B28B11/242 takes precedence) · CPC title

• B28C5/40

  Mixing specially adapted for preparing mixtures containing fibres · CPC title