Method of resurfacing roads and bridge decks

Abstract

The resurfacing of roads and in particular bridge decks includes spreading with a squeegee a thin layer of polymer modified concrete over a bridge deck surface and then applying by broadcasting a layer of rock chips to the wet concrete to provide a high friction surface. A second layer of the polymer modified concrete is then applied over the first layer of rock chips using the squeegee and a second layer of rock chips is then broadcast over that layer and then heavy quartz sand is applied. In another embodiment, heating wires are laid on the road surface and a thick layer of polymer modified concrete is applied over the wires to embed them in the polymer modified concrete. Then a single layer of rock is applied to the surface of the polymer modified concrete. If ruts or potholes are present in the road surface, these defects are repaired prior to the road resurfacing. Repair of potholes is accomplished by mixing granite aggregate rock chips with polymer modified concrete to form a putty which is then screeded into the potholes and ruts. Anti-ponding lines may be formed into the polymer modified concrete by raking the surface while it is still wet.

I claim:  
     
         1 . A method of resurfacing roads, comprising the steps of: 
 a) applying a first layer of polymer modified concrete over a road surface;    b) applying a first layer of rock chips over the polymer modified concrete layer;    c) applying a second layer of polymer modified concrete over the layer of rock chips; and,    d) applying a second layer of rock chips over the second layer of polymer modified concrete.    
     
     
         2 . The method of resurfacing roads as set forth in  claim 1 , wherein the step of applying said first layer of polymer modified concrete to the road surface includes: 
 a) applying said first layer of polymer modified concrete in a thickness of approximately {fraction (1/16)}th to ⅛th inches using a squeegee to provide an even application of said concrete.    
     
     
         3 . The method of resurfacing roads as set forth in  claim 1 , wherein the step of applying said first layer of rock chips over said first layer of polymer modified concrete includes: 
 a) blowing said rock chips onto said first layer of polymer modified concrete with sufficient force to embed said chips in said first layer of polymer modified concrete.    
     
     
         4 . The method of resurfacing roads as set forth in  claim 1 , wherein the step of applying said second layer of polymer modified concrete over said second layer of rock chips over said layer of polymer modified concrete includes: 
 a) applying said second layer of polymer modified concrete in a thickness of approximately {fraction (1/16)}th to ⅛th inches in thickness using a squeegee to provide an even application of said concrete.    
     
     
         5 . The method of resurfacing roads as set forth in  claim 1 , wherein the step of applying said second layer of rock chips over said second layer of polymer modified concrete includes: 
 a) blowing said rock chips onto said second layer of polymer modified concrete with sufficient force to embed said chips in said second layer of polymer modified concrete.    
     
     
         6 . The method of resurfacing roads as set forth in  claim 1 , further including the step of: 
 a) filling in at least one pothole with a mixture of polymer modified concrete and rock chips and screeding said mixture to be substantially level with the road surface prior to application of said first layer of polymer modified concrete.    
     
     
         7 . The method of resurfacing roads as set forth in  claim 1 , wherein the step of applying said first layer of rock chips over said first layer of polymer modified concrete includes: 
 a) blowing rock chips of no larger than ¼ inch in width onto said first layer of polymer modified concrete.    
     
     
         8 . The method of resurfacing roads as set forth in  claim 1 , further including the step of: 
 a) allowing said first layer of polymer modified concrete to harden to form a firm supporting surface prior to application of said second layer of polymer modified concrete.    
     
     
         9 . A method of resurfacing roads, comprising the steps of: 
 a) applying a layer of polymer modified concrete to a road surface;    b) broadcasting rock chips onto said layer of polymer modified concrete while said polymer modified concrete layer is wet; and,    c) raking said road surface while said polymer modified concrete is wet to form anti-ponding lines.    
     
     
         10 . A method of resurfacing roads as set forth in  claim 9 , wherein the step of raking further includes: 
 a) forming said anti-ponding lines to extend from the center of the road surface to the edge of the road surface substantially perpendicular to the direction of travel of traffic on the road surface.    
     
     
         11 . The method of resurfacing roads as set forth in  claim 10 , wherein the step of forming said anti-ponding lines further includes: 
 a) applying said lines spaced apart approximately three-fourths of an inch to one inch.    
     
     
         12 . A method of resurfacing roads comprising the steps of: 
 a) applying a first layer of polymer modified concrete to the road surface;    b) placing electrical resistance heating elements on said first layer of polymer modified concrete;    c) applying a second layer of polymer modified concrete over said heating elements.    d) connecting said electrical heating elements to a power source.    
     
     
         13 . The method of resurfacing roads as set forth in  claim 12 , further comprising the step of: 
 a) applying a layer of rock chips onto said second layer of polymer modified concrete while said second layer is wet.    
     
     
         14 . The method of resurfacing roads as set forth in  claim 12 , wherein the step of placing said electrical heating elements on said first layer includes: 
 a) forming a grid of copper wires in the wheel lanes of the road surface.    
     
     
         15 . The method of resurfacing roads as set forth in  claim 12 , wherein the step of placing said electrical heating elements on said first layer includes: 
 a) forming a zigzag pattern of copper wires in the wheel lanes of the road surface.    
     
     
         16 . The method of resurfacing roads as set forth in  claim 12 , wherein the step of applying a first layer of polymer modified concrete to the road surface includes: 
 a) applying said first layer on the wheel lanes of the road surface.    
     
     
         17 . The method of resurfacing roads as set forth in  claim 16 , wherein the step of applying a first layer of polymer modified concrete to the road surface includes: 
 a) applying said first layer in three foot wide strips to cover the wheel lanes of the road surface.    
     
     
         18 . The method of resurfacing roads as set forth in  claim 12 , wherein the step of connecting said electrical heating elements to a power source includes: 
 a) connecting said electrical heating elements to a photovoltaic energy source.    
     
     
         19 . The method of resurfacing roads as set forth in  claim 12 , wherein the step of connecting said electrical heating elements to a power source includes: 
 a) connecting said electrical heating elements to a battery.