Void reducing asphalt membrane composition, method and apparatus for asphalt paving applications

Abstract

A method of sealing pavement joints includes the steps of dispensing a first band of void reducing joint composition on a substrate. Applying a first pass of pavement over at least a portion of the void reducing joint composition. Dispensing a second pass of void reducing joint composition on the substrate. Applying a second pass of pavement of the second band of void reducing joint composition and against an edge of the first pass of pavement.

1 - 11 . (canceled) 
     
     
         12 . A method of forming a pavement construction joint, comprising:
 dispensing a band of a void reducing joint composition on a substrate using at least one spray application vehicle;   permitting the application of a paving pass over the band of joint composition, wherein the paving pass is positioned against an edge of a previously laid portion of pavement to form a pavement construction joint having a volume of air voids; and   allowing at least a portion of the joint composition to migrate upward to reduce the volume of air voids.   
     
     
         13 . The method of  claim 12 , wherein the substrate comprises a pre-existing pavement roadway. 
     
     
         14 . The method of  claim 12 , wherein the void reducing joint composition comprises at least one asphaltic binder, at least one elastomeric polymer, at least one thickener, and at least one additive to reduce tackiness. 
     
     
         15 . The method of  claim 12 , wherein the band of joint composition comprises a thickness of about 1/16 to about ⅜ inch. 
     
     
         16 . The method of  claim 12 , wherein the void reducing joint composition consists essentially of at least one asphaltic binder, at least one elastomeric polymer, at least one thickener, and at least one additive to reduce tackiness. 
     
     
         17 . The method of  claim 16 , wherein the at least one elastomeric polymer comprises a styrene-butadiene-styrene polymer. 
     
     
         18 . The method of  claim 12 , wherein the substrate comprises at least one of an asphalt concrete, a cement concrete, a milled asphalt concrete, a brick surface, or a chip seal surface. 
     
     
         19 . The method of  claim 12 , wherein the substrate comprises a milled asphalt concrete. 
     
     
         20 . The method of  claim 16 , wherein the joint composition comprises about 85 to about 97 wt. % of the least one asphalt binder. 
     
     
         21 . The method of  claim 12 , wherein the joint composition is resistant to lateral flow across the substrate. 
     
     
         22 . The method of  claim 12 , wherein the previously laid portion of pavement is positioned over the band of joint composition. 
     
     
         23 . The method of  claim 12 , wherein the band comprises a width of about 4 to about 24 inches.