ADDITIVE FOR RECLAMATION OF ASPHALT, RECLAIMED ASPHALT PAVEMENT MATERIAL CONTAINING SAME, MODIFIED ASPHALT, AND ASPHALT PAVEMENT MATERIAL CONTAINING SAME

• US 20140283710A1
• Filed: 06/04/2014
• Published: 09/25/2014
• Est. Priority Date: 06/18/2010
• Status: Active Grant

• Current Assignee: Global Co., Ltd.
• Original Assignee: Yukio Kusano
• Inventors: KUSANO, YUKIO
• Granted Patent: US 8,937,120 B2
• Time in Patent Office: Days
• US Class Current: 106/246
• CPC Class Codes: C08L 101/00 Compositions of unspecified macromolecular compounds
• CPC Class Codes: C08L 25/06 Polystyrene
• CPC Class Codes: C08L 2555/22 Asphalt produced above 140°C, e.g. hot melt asphalt
• CPC Class Codes: C08L 2555/32 Environmental burden or human safety, e.g. CO2 footprint, fuming or leaching
• CPC Class Codes: C08L 2555/34 Recycled or waste materials, e.g. reclaimed bitumen, asphalt, roads or pathways, recycled roof coverings or shingles, recycled aggregate, recycled tires, crumb rubber, glass or cullet, fly or fuel ash, or slag
• CPC Class Codes: C08L 2555/64 Oils, fats or waxes based upon fatty acid esters, e.g. fish oil, olive oil, lard, cocoa butter, bees wax or carnauba wax
• CPC Class Codes: C08L 2555/74 Petrochemicals other than waxes, e.g. synthetic oils, diesel or other fuels, hydrocarbons, halogenated or otherwise functionalized hydrocarbons
• CPC Class Codes: C08L 2555/80 Macromolecular constituents
• CPC Class Codes: C08L 91/00 Compositions of oils, fats or waxes; Compositions of derivatives thereof
• CPC Class Codes: C08L 91/06 Waxes
• CPC Class Codes: C08L 95/00 Compositions of bituminous materials, e.g. asphalt, tar, pitch
• CPC Class Codes: C08L 99/00 Compositions of natural macromolecular compounds or of derivatives thereof not provided for in groups C08L89/00 - C08L97/00
• CPC Class Codes: C09D 7/63 organic
• CPC Class Codes: C09D 7/65 macromolecular C09D7/41-C09D7/48 take precedence

Abstract

An additive for reclaiming asphalt of the present invention, which is obtained by adding straight asphalt to a mixture of a waste animal or vegetable oil and a waste mineral oil having a kinematic viscosity at 60° C. of 10 mm²/s to 40 mm²/s, mixing the materials, and heating the resultant mixture to remove an aromatic component. The additive for reclaiming asphalt can restore the physical properties of a deteriorated asphalt component to the same or greater extent than that of a conventional additive for reclaiming asphalt, and the additive has low content of components that may affect the environment or humans, and high fluidity at room temperature, and is available at an extremely low cost.

Claims

1-5. -5. (canceled)

6. A method of producing an additive for reclaiming asphalt, comprising:

adding straight asphalt to a mixture of (a) waste animal and/or vegetable oil and (b) a waste mineral oil having a kinematic viscosity at 60°

C. of 10 mm²/s to 40 mm²/s,

mixing the materials,

heating the resultant mixture thereby removing an aromatic component, and

obtaining the additive for reclaiming asphalt.

7. The method of producing an additive for reclaiming asphalt according to claim 6, wherein the mixing ratio of the waste animal and/or vegetable oil to the waste mineral oil having a kinematic viscosity at 60°

C. of 10 mm²/s to 40 mm²/s is 1;

9 to 99.1;

0.1.

8. The method of producing an additive for reclaiming asphalt according to claim 6, wherein the straight asphalt has a penetration degree of 20 to 80 according to JIS K2207 at 25°

C.

9. The method of producing an additive for reclaiming asphalt according to claim 6, wherein the amount of the straight asphalt is 3 wt % to 30 wt % with respect to the additive for reclaiming asphalt.

10. A method of reclaiming reclaimed asphalt pavement material, comprising

adding the additive for reclaiming asphalt according to claim 6 to an asphalt pavement waste or a mixture of a fresh aggregate and an asphalt pavement waste.

11. The method of reclaiming asphalt pavement material according to claim 10, further comprising melting and mixing the materials under temperatures of 150°

C. to 180°

C.

12. The method of reclaiming asphalt pavement material according to claim 10, wherein the amount of the additive for reclaiming asphalt is within the range of 1 wt % to 6 wt % with respect to deteriorated asphalt in the asphalt pavement waste or the mixture of the fresh aggregate and the asphalt pavement waste

13. A method of producing a modified asphalt, comprising adding a xerogel-like amorphous resin to molten straight asphalt together with a waste animal or vegetable oil and mixing the materials,

wherein the xerogel-like amorphous resin is obtained by

dissolving an amorphous resin with an organic solvent capable of dissolving the amorphous resin to provide a gel- or dough-like amorphous resin in a saturated state,

immersing the resin in alcohol to remove the organic solvent, and

drying the remainder.

14. A method of producing a modified asphalt, comprising adding a product to molten straight asphalt together with a waste animal or vegetable oil and mixing the materials,

wherein the product is obtained by

dissolving an amorphous resin with an organic solvent capable of dissolving the amorphous resin to provide a gel- or dough-like amorphous resin in a saturated state, and

heating the resin to melt the resin, and

wherein a content of the gel- or dough-like amorphous resin in the modified asphalt is 70 wt % to 90 wt %.