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Use of linseed oil-derived materials as rejuvenators of vacuum tower bottom and reclaimed asphalt pavement
Category(s):
For Information, Contact:
Craig Forney
Commercialization Manager, Chemistry and Materials Sciences
515-294-4740
licensing@iastate.edu
Web Published:
4/28/2016
ISURF #
4419
Summary:
Iowa State University researchers have developed formulations to use bio-derived materials as flux and/or rejuvenators for using vacuum tower bottoms (VTB) and reclaimed asphalt pavement (RAP) in warm mix asphalt.

Development Stage:
Description:
Heated bodied linseed oil and partially hydrogenated heated bodied linseed oil were used as flux and/or rejuvenators for asphalt binders made from vacuum tower bottoms (VTB). These bio-derived materials were able to improve the binder performance grade from 76-10 to PG 70-22 and PG 64-22 grades. As VTB is at a distinct price advantage over other binder materials, use of this material as a flux results in a significant decrease in costs.

Advantage:
• Large improvement in usability of VTB as an asphalt binder
• Applicable to warm mix asphalt that includes RAP at a lower price than other rejuvenators
• Bio-derived materials
Application:
Warm mix asphalt paving

Patent Information:
*To see the full version of the patent(s), follow the link below, then click on "Images" button.

Patent:
Patent(s) applied for

Direct Link: