Fuel-resistant liquid asphalt binders and methods of making the same
A fuel-resistant liquid asphalt binder including a composition of fatty amine derivatives for improving the flowability and workability of a bituminous asphalt mix. The fuel-resistant liquid asphalt binder may include 0.4 wt % to 0.7 wt % of a composition of fatty amine derivatives, 2 wt % to 5 wt % styrene-butadiene-styrene, and 2 wt % to 5 wt % high acetate content ethyl vinyl acetate. The fuel-resistant liquid asphalt binder may be mixed with an aggregate to form a bituminous asphalt mix at temperatures ranging from 330° F. to 280° F.
1. A fuel-resistant liquid asphalt binder comprising a liquid asphalt binder base, cross-linked styrene-butadiene-styrene, high acetate content ethylene vinyl acetate, and a composition of fatty amine derivatives.
2. The fuel-resistant liquid asphalt binder of claim 1 , wherein the styrene-butadiene-styrene has a concentration in the range of 2 wt % to 5 wt %.
3. The fuel-resistant liquid asphalt binder of claim 1 , wherein the high acetate content ethylene vinyl acetate has a concentration in the range of 2 wt % to 5 wt %.
4. The fuel-resistant liquid asphalt binder of claim 1 , wherein the composition of fatty amine derivatives has a concentration in the range of 0.4 wt % to 0.7 wt %.
5. The fuel-resistant liquid asphalt binder of claim 1 , wherein the fuel-resistant liquid asphalt binder has an ASTM D7173 maximum temperature difference of less than or equal to 40° F. when using an ASTM D36 Ring and Ball apparatus.
6. The fuel-resistant liquid asphalt binder of claim 1 , wherein the fuel-resistant liquid asphalt binder meets an AASHTO M320 performance grade.
7. The fuel-resistant liquid asphalt binder of claim 1 , wherein the fuel-resistant liquid asphalt binder has an ASTM D6084 elastic recovery at 25° C. of greater than or equal to 85%.
8. The fuel-resistant liquid asphalt binder of claim 1 , wherein:
the liquid asphalt binder base has a concentration in the range of 89.3 wt % to 95.6 wt %;
the styrene-butadiene-styrene has a concentration in the range of 2 wt % to 5 wt %;
the high acetate content ethylene vinyl acetate has a concentration in the range of 2 wt % to 5 wt %; and
the composition of fatty amine derivatives has a concentration in the range of 0.4 wt % to 0.7 wt %.
9. A bituminous asphalt mix comprising:
a fuel-resistant liquid asphalt binder comprising a liquid asphalt binder base, cross-linked styrene-butadiene-styrene, high acetate content ethylene vinyl acetate, and a composition of fatty amine derivatives;
air voids; and
an aggregate.
10. The bituminous asphalt mix of claim 9 , wherein the fuel-resistant liquid asphalt binder has a concentration in the range of 4 wt % to 9 wt %.
11. The bituminous asphalt mix of claim 9 , wherein the air voids have a concentration in the range of 2 vol % to 3 vol %.
12. The bituminous asphalt mix of claim 9 , wherein the mix has a weight loss by fuel immersion of less than 2.5% when measured according to FAA P-601 test specifications.
13. The bituminous asphalt mix of claim 9 , wherein:
the liquid asphalt binder base has a concentration in the range of 89.3 wt % to 95.6 wt % in the fuel-resistant liquid asphalt binder;
the styrene-butadiene-styrene has a concentration in the range of 2 wt % to 5 wt % in the fuel-resistant liquid asphalt binder;
the high acetate content ethylene vinyl acetate has a concentration in the range of 2 wt % to 5 wt % in the fuel-resistant liquid asphalt binder; and
the composition of fatty amine derivatives has a concentration in the range of 0.4 wt % to 0.7 wt % in the fuel-resistant liquid asphalt binder.
14. A method of making a fuel-resistant liquid asphalt binder, the method comprising mixing a liquid asphalt binder base, cross-linked styrene-butadiene-styrene, high acetate content ethylene vinyl acetate, and a composition of fatty amine derivatives to thereby form the fuel-resistant liquid asphalt binder.
15. The method of claim 14 , wherein the styrene-butadiene-styrene has a concentration in the range of 2 wt % to 5 wt % in the fuel-resistant liquid asphalt binder.
16. The method of claim 14 , wherein the high acetate content ethylene vinyl acetate has a concentration in the range of 2 wt % to 5 wt % in the fuel-resistant liquid asphalt binder.
17. The method of claim 14 , wherein the composition of fatty amine derivatives has a concentration in the range of 0.4 wt % to 0.7 wt % in the fuel-resistant liquid asphalt binder.
18. The method of claim 14 , wherein:
the liquid asphalt binder base has a concentration in the range of 89.3 wt % to 95.6 wt % in the fuel-resistant liquid asphalt binder;
the styrene-butadiene-styrene has a concentration in the range of 2 wt % to 5 wt % in the fuel-resistant liquid asphalt binder;
the high acetate content ethylene vinyl acetate has a concentration in the range of 2 wt % to 5 wt % in the fuel-resistant liquid asphalt binder; and
the composition of fatty amine derivatives has a concentration in the range of 0.4 wt % to 0.7 wt % in the fuel-resistant liquid asphalt binder.
19. The method of claim 14 , wherein the fuel-resistant liquid asphalt binder has an ASTM D7173 maximum temperature difference of less than or equal to 40° F. when using an ASTM D36 Ring and Ball apparatus, meets an AASHTO M320 performance grade, has an ASTM D6084 elastic recovery at 25° C. of greater than or equal to 85%, or a combination thereof.