Toner-modified asphalt compositions

Details Toner-modified asphalt compositions Toner-modified asphalt compositions

1999-08-13

2000-09-05

Brunsman, David

Compositions: coating or plastic

Coating or plastic compositions

Bituminous material or tarry residue

1062811, 524 59, C09D19500

Patent

active

061136816

ABSTRACT:
Modified asphalt cement is produced by blending asphalt with up to about 20% waste toner recovered from laser printers, copiers, and the like. The blending is carried out at high shear and at temperatures above the melting point of the toner. The toner-modified asphalt cement, and asphalt concrete made from the modified cement, both display significantly improved strength and temperature resistance properties relative to unmodified asphalt and asphalt concrete.

REFERENCES:
patent: 5021476 (1991-06-01), Pinomaa
patent: 5651994 (1997-07-01), Hara et al.
"Better asphalt with printer, copier waste," Civil Engineering News, (Jun. 1996), p. 29.
"Toning Asphalt," Emerging Technology, Jul./(Aug. 1996), pp. 1, 7.
Aileen Cho, "Waste Toner May Beef Up Asphalt," ENR-Engineering News-Record, (Sep.30, 1996), p.21.
Ruth W. Stidger, "Better Roads' award for research," Better Roads, (Jan. 1997), p.7.
Mike Wallace, "Valuable waste strengthening roads," Waco Tribune-Herald, (Feb. 2, 1997), p. 1C.
"Toner-in-asphalt method Reaches Application Testing Stage of Development," Emerging Technology, (May/Jun. 1997).
Rakesh Tripathi, "Waste Toner Disposal: Paving the Texas Turnpike" (presentation at Toners & Photoreceptors '97 (Jun. 1-4, 1997), Santa Barbara, CA).
Zachary Hinkle, "Valley Mills Drive repaving to resume," Waco Tribune-Herald, (Jul. 14, 1997.).
Zachary Hinkle, "Repaving work on Valley Mills Drive continues," Waco Tribune-Herald, (Jul. 1997.).
"Twofold Uses for Toner", TTI Researchers (Texas Transportation Inst.), p.11, (Summer 1997.).
"Copy Fluid Attacks Potholes," Popular Mechanics, (Oct. 1997.).
Mansour Solaimanian, Thomas W. Kennedy, and Rakesh Tripathi, "Performance Characteristics of Asphalt Binders and Mixtures Modified by Waste Toner," Paper No. 98-0045, Transportation Research Record No. 1638, "Asphalt Mixture Components", (Nov. 1998), pp. 120-128.
Solaimanian, "Superpave on Loop 396 . . . ", 1996.
Solaimanian, "Use of Waste Toner . . . ", Feb. 1997.

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