Rejuvenation of vacuum tower bottoms through bio-derived materials
The present invention relates to an asphalt product. The asphalt product includes an asphalt binder and a bio-oil blend comprising a mixture of a non-hydrogenated bio-oil and a partially hydrogenated bio-oil, where the bio-oil blend is mixed with the asphalt binder to form an asphalt product having a shear stiffness of 0.20 kPa to 11,000 kPa at a temperature ranging from 25° C. to 85° C. and/or a viscosity of 0.15 Pa·s to 1.50 Pa·s at a temperature ranging from 120° C. to 165° C. The present invention further relates to methods of producing an asphalt product and methods of applying an asphalt product to a surface.
1. An asphalt product comprising:
an asphalt binder and
a bio-oil blend comprising a mixture of a non-hydrogenated heat bodied bio-oil and a partially hydrogenated heat bodied bio-oil, wherein the bio-oil blend is mixed with the asphalt binder to form an asphalt product having a shear stiffness of 0.20 kPa to 11,000 kPa at a temperature ranging from 25° C. to 85° C. and/or a viscosity of 0.15 Pa·s to 1.50 Pa·s at a temperature ranging from 120° C. to 165° C.
2. The asphalt product of claim 1 , wherein the binder is a vacuum tower distillation bottom.
3. The asphalt product of claim 1 , wherein the asphalt product has a shear stiffness of 0.20 kPa to 11,000 kPa at a temperature ranging from 25° C. to 85° C.
4. The asphalt product of claim 1 , wherein the asphalt product has a viscosity of 0.15 Pa·s to 1.50 Pa·s at a temperature ranging from 120° C. to 165° C.
5. The asphalt product of claim 1 , wherein the asphalt product has a shear stiffness of 0.20 kPa to 11,000 kPa at a temperature ranging from 25° C. to 85° C. and a viscosity of 0.15 Pa·s to 1.50 Pa·s at a temperature ranging from 120° C. to 165° C.
6. The asphalt product of claim 1 , wherein the bio-oil blend comprises 0.1 to 10.0 wt. % of the asphalt product.
7. The asphalt product of claim 1 , wherein the bio-oil is from an oil derived from a source selected from the group consisting of fish, animal, vegetable, synthetic and genetically-modified plant oils, and mixtures thereof.
8. The asphalt product of claim 1 , wherein the bio-oil blend is a mixture of heat-bodied linseed oil (HBL) and partially hydrogenated heat-bodied linseed oil (PHBL).
9. The asphalt product of claim 1 , wherein the product has a specific gravity of 1.019-1.052.
10. The asphalt product of claim 1 further comprising:
a mineral aggregate.
11. The asphalt product of claim 1 , wherein the product is in the form of an asphalt mixture.
12. The asphalt product of claim 1 further comprising:
fiberglass and
a mineral aggregate.
13. A roofing shingle, wherein the improvement comprises the asphalt product of claim 1 .
14. The asphalt product of claim 1 , wherein the asphalt binder modifier further comprises a carboxyl additive.
15. The asphalt product of claim 1 , wherein the asphalt binder further comprises a styrene-butadiene type polymer.
16. The asphalt product of claim 7 , wherein the bio-oil is an oil from a vegetable source.
17. The asphalt product of claim 16 , wherein the bio-oil is selected from the group consisting of high erucic acid rapeseed, soybean, safflower, canola, castor, sunflower, palm, and linseed oil.
18. The asphalt product of claim 7 , wherein the bio-oil is an oil from a fish source.
19. The asphalt product of claim 3 , wherein the asphalt product has a shear stiffness for an unaged binder ranging from 0.21 kPa to 7.45 kPa at a temperature ranging from 64° C. to 82° C.
20. The asphalt product of claim 3 , wherein the asphalt product has a shear stiffness for a short term aged binder ranging from 0.45 kPa to 23.25 kPa at a temperature ranging from 64° C. to 82° C.
21. The asphalt product of claim 3 , wherein the asphalt product has a shear stiffness for a long term aged binder ranging from 659.04 kPa to 10,883.63 kPa at a temperature ranging from 31° C. to 40° C.
22. The asphalt product of claim 4 , wherein the asphalt product has a viscosity of 0.18 Pa·s to 1.35 Pa·s at a temperature ranging from 135° C. to 165° C.
23. The asphalt product of claim 20 , wherein the asphalt product has a viscosity of 0.6469 Pa·s to 1.33 Pa·s at a temperature of 135° C.
24. The asphalt product of claim 20 , wherein the asphalt product has a viscosity of 0.3244 Pa·s to 0.5435 Pa·s at a temperature of 150° C.
25. The asphalt product of claim 20 , wherein the asphalt product has a viscosity of 0.1808 Pa·s to 0.2825 Pa·s at a temperature of 165° C.