Colored composite pavement structure

Abstract

A process for making a colored composite pavement structure comprising silylated glass aggregate particles and a polymeric binder composition is disclosed. Systems and methods are also disclosed for providing a colored composite material that cures into a pavement structure. In one embodiment, a colorant concentrate is provided by combining an inorganic colorant with a portion of a first component of a polymeric binder composition. The colorant concentrate can then be combined with the first and second components of the polymeric binder composition to provide a colored polymeric binder composition. The colored polymeric binder composition may then be applied to silylated glass aggregate particles to provide a colored composite material that cures into a pavement structure.

1 - 9 . (canceled) 
     
     
         10 . A mixing system for producing a colored composite material comprising at least one aggregate, a two component polymeric binder composition comprising a first component and a second component reactive with the first component, and a colorant concentrate, the mixing system comprising:
 an aggregate vessel for holding the aggregate;   a first vessel for holding the colorant concentrate;   a second vessel for holding the first component of the polymeric binder composition;   a third vessel for holding the second component of the polymeric binder composition;   a mixer in fluid communication with the first, second and third vessels for mixing the first component, the second component, and the colorant concentrate together to form a colored polymeric binder composition;   an applicator constructed and arranged to apply the colored polymeric binder composition onto the aggregate at an application rate; and   a mixing apparatus in communication with the aggregate vessel and the spray assembly, the second mixing apparatus being arranged to mix the glass aggregate particles with the colored polymeric binder composition to provide a colored composite material at a production rate.   
     
     
         11 . The mixing system of  claim 10 , wherein
 the mixer is a static mixer or an impingement mixer.   
     
     
         12 . The mixing system of  claim 10 , further comprising
 a conveying system arranged to transport the aggregate from the aggregate vessel to the mixing apparatus at a transport rate.   
     
     
         13 . The mixing system of  claim 10 , wherein
 the mixing apparatus comprises an auger rotatably disposed within a housing.   
     
     
         14 . The mixing system of  claim 10 , further comprising
 a first pump in fluid communication with the first vessel and the mixer;   a second pump in fluid communication with the second vessel and the mixer; and   a third pump in fluid communication with the third vessel and the mixer.   
     
     
         15 . The mixing system of  claim 14 , further comprising
 a controller for controlling the operation of the first pump, the second pump, the third pump, and the first mixing apparatus, the controller being for controlling the application rate of the colored polymeric binder composition and the production rate of the colored composite material.   
     
     
         16 . The mixing system of  claim 15 , wherein
 the first pump is arranged to deliver the colorant concentrate from the first vessel to the second vessel.