Binder composition for improved tack coat and stress absorbing membrane interlayer application for road construction
A method of installing an asphalt pavement, which method involves: identifying a surface to be paved; applying a non-tracking layer of binder composition to the surface; and permitting the application of an asphalt layer over the non-tracking layer of binder composition. The binder composition consists essentially of: at least one asphalt binder; at least one elastomer; and ethylene bis stearamide. In a further embodiment the binder composition consists essentially of: at least one asphalt binder; at least one elastomer; sulfur; and ethylene bis stearamide. The composition is applied as a tack coat and/or a stress absorbing membrane interlayer and is non-tracking.
1. A method of installing an asphalt pavement, comprising:
identifying a surface to be paved;
applying a non-tracking layer of binder composition to the surface, wherein the binder composition consists essentially of:
at least one asphalt binder,
at least one elastomer, and
ethylene bis stearamide; and
permitting the application of an asphalt layer over the non-tracking layer of binder composition.
2. The method of claim 1 , wherein the at least one elastomer comprises an SBS polymer.
3. The method of claim 1 , wherein the at least one elastomer comprises about 2 to about 5 wt. % of the binder composition.
4. The method of claim 1 , wherein the at least one asphalt binder comprises about 85 to about 97 wt. % of the binder composition.
5. The method of claim 1 , wherein the surface comprises a pre-existing asphalt surface.
6. The method of claim 1 , wherein the asphalt layer is applied directly onto the non-tracking layer.
7. The method of claim 6 , wherein the asphalt layer comprises a hot-mix asphalt.
8. The method of claim 1 , wherein the ethylene bis stearamide comprises about 1 to about 5 wt. % of the binder composition.
9. The method of claim 1 , wherein the method further comprises permitting the binder composition to migrate upward into the asphalt layer.
10. A method of installing an asphalt pavement, comprising:
identifying a surface to be paved;
applying a non-tracking layer of binder composition to the surface, wherein the binder composition consists essentially of:
at least one asphalt binder,
at least one elastomer,
sulfur, and
ethylene bis stearamide; and
permitting the application of an asphalt layer over the non-tracking layer of binder composition.
11. The method of claim 10 , wherein the at least one elastomer comprises an SBS polymer.
12. The method of claim 10 , wherein the at least one elastomer comprises about 2 to about 5 wt. % of the binder composition.
13. The method of claim 10 , wherein the at least one asphalt binder comprises about 85 to about 97 wt. % of the binder composition.
14. The method of claim 10 , wherein the surface comprises a pre-existing asphalt surface.
15. The method of claim 10 , wherein the asphalt layer is applied directly onto the non-tracking layer.
16. The method of claim 15 , wherein the asphalt layer comprises a hot-mix asphalt.
17. The method of claim 10 , wherein the ethylene bis stearamide comprises about 1 to about 5 wt. % of the binder composition.
18. The method of claim 10 , wherein the method further comprises permitting the binder composition to migrate upward into the asphalt layer.