Pavement repair system

Patent metadata

Field	Value
Publication number	US-9551114-B2
Application number	US-201615148998-A
Country	US
Kind code	B2
Filing date	May 6, 2016
Priority date	Mar 15, 2013
Publication date	Jan 24, 2017
Grant date	Jan 24, 2017

Abstract

A pavement repair system utilizes solid phase auto regenerative cohesion and homogenization by liquid asphalt oligopolymerization technologies. The system is suitable for use in repairing asphalt pavement, including pavement exhibiting a high degree of deterioration (as manifested in the presence of potholes, cracks, ruts, or the like) as well as pavement that has been subject to previous repair and may comprise a substantial amount of dirt and other debris (e.g., chipped road paint or other damaged or disturbed surfacing materials). A system utilizing homogenization by liquid asphalt oligopolymerization is suitable for rejuvenating or repairing aged asphalt, thereby improving properties of the paving material.

First claim

What is claimed is:

1. A method for providing an asphalt pavement with a new wearing surface, comprising:
transferring a road plating composition to a surface of an asphalt pavement, the road plating composition comprising a binder and graded stone; and
irradiating the road plating composition and a surface layer of the asphalt pavement with a radiation having a preselected peak wavelength of from 1 nm to 10000 nm, whereby the asphalt pavement is provided with a new wearing surface comprising the irradiated road plating composition atop the irradiated surface layer of the asphalt pavement, wherein the peak wavelength of the radiation is selected such that the radiation penetrates through and heats the road plating composition and the surface layer of the asphalt pavement to a depth of at least two inches from a topmost pavement surface, wherein a temperature differential throughout a top two inches of the pavement is 100° F. or less, wherein a highest temperature in the top two inches of the pavement does not exceed 300° F., and wherein a minimum temperature in the top two inches of the pavement is at least 200° F.

2. The method of claim 1 , wherein the road plating composition is from ⅛ inch to ½ inch thick.

3. The method of claim 1 , further comprising installing a binder primer on the asphalt pavement prior to transferring the road plating composition.

4. The method of claim 1 , further comprising installing a levelling course on the asphalt pavement prior to transferring the road plating composition.

5. The method of claim 1 , further comprising subjecting the new wearing surface to vibratory compaction, whereby the irradiated road-plating composition is fused to the irradiated surface layer of the asphalt pavement.

6. The method of claim 1 , wherein the road plating composition is in a form of a pre-manufactured roll or a sheet.

7. The method of claim 1 , wherein the binder is an asphalt binder.

8. The method of claim 1 , wherein the binder comprises at least one binder crosslink component selected from the group consisting of polyurethanes, isocyanates, bisphenol A-based liquid epoxy resins, and aliphatic glycol epoxy resins.

9. The method of claim 1 , wherein the graded stone is coated with a 3-5 mil layer of binder.

10. The method of claim 1 , wherein the binder comprises an elastomer.

11. The method of claim 10 , wherein the elastomer is selected from the group consisting of a butyl rubber, a styrene-butadiene-styrene polymer, a styrene/acrylate copolymer, a chlorinated natural rubber, a thermoplastic, and a bioresin.

12. The method of claim 1 , wherein the asphalt pavement comprises an asphaltene asphalt, and wherein the preselected peak wavelength is from 1000 nm to 4000 nm.

13. The method of claim 1 , wherein the asphalt pavement comprises a maltene asphalt, and wherein the preselected peak wavelength is from 1000 nm to 10000 nm.

14. A method for providing an asphalt pavement with a new wearing surface, comprising:
transferring a road plating composition to a surface of an asphalt pavement, the road plating composition comprising a binder and graded stone; and
irradiating the road plating composition and a surface layer of the asphalt pavement with a radiation having a preselected peak wavelength of from 1 nm to 10000 nm, whereby the asphalt pavement is provided with a new wearing surface comprising the irradiated road plating composition atop the irradiated surface layer of the asphalt pavement, wherein the peak wavelength of the radiation is selected based on at least one criterion selected from the group consisting of absorbed wavelength quanta data related to a stone petrography of the asphalt pavement, an asphaltene/maltene content of the binder, and an average crack width by depth topography of the asphalt pavement.

15. A method for providing an asphalt pavement with a new wearing surface, comprising:
transferring a road plating composition to a surface of an asphalt pavement, the road plating composition comprising a binder and graded stone; and
irradiating the road plating composition and a surface layer of the asphalt pavement with a radiation having a preselected peak wavelength of from 1 nm to 10000 nm, whereby the asphalt pavement is provided with a new wearing surface comprising the irradiated road plating composition atop the irradiated surface layer of the asphalt pavement, wherein the peak wavelength of the radiation is selected based on data from exploratory testing conducted on representative portions of the surface of the asphalt pavement.

16. A method for providing an asphalt pavement with a new wearing surface, comprising:
transferring a road plating composition to a surface of an asphalt pavement, the road plating composition comprising a binder and graded stone; and
irradiating the road plating composition and a surface layer of the asphalt pavement with a radiation having a preselected peak wavelength of from 1000 nm to 10000 nm, whereby the asphalt pavement is provided with a new wearing surface comprising the irradiated road plating composition atop the irradiated surface layer of the asphalt pavement.

17. A method for providing an asphalt pavement with a new wearing surface, comprising:
transferring a road plating composition to a surface of an asphalt pavement, the road plating composition comprising a binder and graded stone, the asphalt pavement comprising a granite rock; and
irradiating the road plating composition and a surface layer of the asphalt pavement with a radiation having a preselected peak wavelength of from 3000 nm to 5000 nm, whereby the asphalt pavement is provided with a new wearing surface comprising the irradiated road plating composition atop the irradiated surface layer of the asphalt pavement.

18. A method for providing an asphalt pavement with a new wearing surface, comprising:
transferring a road plating composition to a surface of an asphalt pavement, the road plating composition comprising a binder and graded stone, the asphalt pavement comprising a limestone; and
irradiating the road plating composition and a surface layer of the asphalt pavement with a radiation having a preselected peak wavelength of from 3000 nm to 4000 nm, whereby the asphalt pavement is provided with a new wearing surface comprising the irradiated road plating composition atop the irradiated surface layer of the asphalt pavement.

19. A method for providing an asphalt pavement with a new wearing surface, comprising:
transferring a road plating composition to a surface of an asphalt pavement, the road plating composition comprising a binder and graded stone, the asphalt pavement comprising a sand; and
irradiating the road plating composition and a surface layer of the asphalt pavement with a radiation having a preselected peak wavelength of from 5000 nm to 8000 nm, whereby the asphalt pavement is provided with a new wearing surface comprising the irradiated road plating composition atop the irradiated surface layer of the asphalt pavement.

20. A method for providing an asphalt pavement with a new wearing surface, comprising:
transferring a road plating composition to a surface of an asphalt pavement, the road plating composition comprising a binder and graded stone;
irradiating the road plating composition and a surface layer of the asphalt pavement with a radiation having a preselected peak wavelength of from 1 nm to 10000 nm; and
irradiating the road plating composition and the surface layer of the asphalt pavement with a radiation having a second preselected peak waveleng

Assignees

• Coe William B

Inventors

• Coe William B

Classifications

• H05B3/0038

  for industrial applications · CPC title

• E01C19/002

  Apparatus for preparing and placing the materials and for consolidating or finishing the paving · CPC title

• E01C7/187

  Repairing bituminous covers, e.g. regeneration of the covering material in situ, application of a new bituminous topping (application of thin surface layers with other binders E01C7/35; repairing pavings in general E01C11/005) · CPC title

• E01C23/00

  Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces (apparatus for reconditioning of salvaged non-hydraulic compositions {for- in plant recycling of salvaged bituminous mixtures} E01C19/10) · CPC title

• E01C23/03

  Arrangements for curing paving; Devices for applying curing means; Devices for laying prefabricated underlay, e.g. sheets, membranes (reinforcing elements E01C23/04); Protecting paving under construction or while curing, e.g. use of tents (road barriers E01F13/00) · CPC title