Performance grade asphalt repair composition

Patent metadata

Field	Value
Publication number	US-2018072625-A1
Application number	US-201615265507-A
Country	US
Kind code	A1
Filing date	Sep 14, 2016
Priority date	Sep 14, 2016
Publication date	Mar 15, 2018
Grant date	—

Abstract

The present invention is a system for repairing asphalt. The system includes a discrete quantity of an asphalt repair composition located within a container and an induction heater. The composition is a combination of an asphalt binder, aggregate particles, and induction particles. The average diameter of the induction particles ranges from approximately 10% above to approximately 10% below an average diameter of the aggregate particles used in the composition. The induction heater heats the composition within the container by generating a magnetic field that penetrates the container. The magnetic field creates eddy currents in the induction particles. These eddy currents in turn heat the composition. Because the induction particles are distributed throughout the composition, the composition heats rapidly.

First claim

What is claimed is:

1 . A discrete quantity of an asphalt repair composition, comprising:
an asphalt binder; a plurality of aggregate particles having an average diameter; and a plurality of induction particles, wherein an average diameter of said plurality of induction particles ranges from approximately 10% above said average diameter of said plurality of aggregate particles to approximately 10% below said average diameter of said plurality of aggregate particles.

2 . The composition of claim 1 , wherein said asphalt binder includes at least one mineral filler.

3 . The composition of claim 2 , wherein said at least one mineral filler is selected from the group consisting of: crushed aggregates, aggregate dust, hydrated lime, hydraulic cements, fly ash, loess, kiln dusts, and any combination thereof.

4 . The composition of claim 1 , wherein said asphalt binder includes at least one warm mix additive.

5 . The composition of claim 1 , wherein said asphalt binder includes at least one chemical anti-stripping additive.

6 . The composition of claim 1 , wherein said asphalt binder is a performance graded asphalt binder.

7 . The composition of claim 1 , wherein said plurality of induction particles have an average diameter ranging from approximately 0.002 inches to approximately 1 inch.

8 . The composition of claim 1 , wherein said plurality of induction particles are a material selected from the group consisting of: graphite, tungsten, iron alloys, steel alloys, steel production byproducts, and combinations thereof

9 . The composition of claim 1 , wherein said plurality of induction particles comprise approximately 1% of said composition, to approximately 20% of said composition.

10 . The composition of claim 1 , wherein said plurality of induction particles comprise approximately 1% of said composition, to approximately 10% of said composition.

11 . The composition of claim 1 , wherein said plurality of induction particles comprise approximately 5% of said composition.

12 . An asphalt repair system, comprising:
a container, wherein said container encloses a quantity of an asphalt repair composition comprising:
an asphalt binder,
a plurality of aggregate particles having an average diameter, and
a plurality of induction particles, wherein an average diameter of said plurality of induction particles ranges from approximately 10% above said average diameter of said plurality of aggregate particles to approximately 10% below said average diameter of said plurality of aggregate particles.

13 . The system of claim 12 , wherein said container is comprised of a material which has a melting point above 350 degrees F.

14 . The system of claim 13 , wherein said container is manufactured from a material selected from the group consisting of: fiberglass, polymers, and combinations thereof.

15 . The system of claim 12 , wherein said container is comprised of a material transparent to a magnetic field, selected from the group consisting of: fiberglass, polymers, and combinations thereof.

16 . The system of claim 12 , wherein said container is manufactured from a non-metallic material.

17 . The system of claim 12 , wherein said container has an interior volume ranging from approximately three gallons to approximately five gallons.

18 . The system of claim 12 , further comprising an induction heater configured to heat said discrete quantity of asphalt repair composition when said discrete quantity of asphalt repair composition is within said container.

Assignees

• Us Army

Inventors

• Rushing John F
• Floyd Webster C
• Rutland Craig

Classifications

• C04B2111/00465

  Heat conducting materials · CPC title

• C04B2111/0075

  for road construction · CPC title

• H05B6/106

  in the form of fillings · CPC title

• C04B26/26 Primary

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

• C04B2111/72

  Repairing or restoring existing buildings or building materials · CPC title