BINDER COMPOSITION FOR IMPROVED TACK COAT AND STRESS ABSORBING MEMBRANE INTERLAYER APPLICATION FOR ROAD CONSTRUCTION
A binder composition for asphalt pavements that includes: an asphalt binder; an elastomeric polymer; a wax modifier; and optionally at least one of: i) fumed silica or fumed alumina; and ii) a saponified fatty acid and a resin acid gelling compound. The composition is applied as a tack coat and/or a stress absorbing membrane interlayer and is non-tracking.
1 - 18 . (canceled)
19 . A structure comprising:
a pavement surface having a width; and
a binder composition applied to the pavement surface, wherein the binder composition covers a substantial portion of the width of the pavement surface, and wherein said binder composition comprises:
at least one asphalt binder;
at least one elastomer; and
ethylene bis stearamide.
20 . The structure of claim 19 , wherein the at least one elastomer comprises a styrene-butadiene-styrene polymer.
21 . The structure of claim 19 , wherein the binder composition further comprises sulfur.
22 . The structure of claim 19 , wherein the at least one elastomer comprises about 2 to about 5 wt. % of the binder composition.
23 . The structure of claim 19 , wherein the at least one asphalt binder comprises about 85 to about 97 wt. % of the binder composition.
24 . The structure of claim 19 , wherein the ethylene bis stearamide comprises about 1 to about 5 wt. % of the binder composition.
25 . The structure of claim 19 , wherein the binder composition covers the entire width of the pavement surface.
26 . The structure of claim 19 , further comprising an asphalt layer placed over the binder composition, wherein the binder composition is positioned between the pavement surface and the asphalt layer.
27 . The structure of claim 26 , wherein the asphalt layer comprises a hot-mix asphalt.