Road structure and method for the production thereof

Abstract

A method for producing a road structure, has the following steps: (i) applying a highly porous asphalt base layer onto a supporting structure, particularly applying a highly porous asphalt base layer onto a concrete structure; (ii) applying a reaction resin mix onto the highly porous asphalt base layer from step (i); (iii) applying a bonding agent onto the highly porous asphalt base layer from step (i), wherein the bonding agent is a thermoplastic which is solid at room temperature; (iv) applying a bitumen-based top layer.

1 . A method for producing a road structure comprising the steps
 (i) Application of a highly porous asphalt supporting layer on a supporting structure;   (ii) Application of a reaction resin mix on the highly porous asphalt supporting layer of step (i);   (iii) Application of an adhesive promoter on the highly porous asphalt supporting layer of step (i), wherein the adhesive promoter is a thermoplastic that is solid at room temperature;   (iv) Application of a bitumen-based top layer.   
     
     
         2 . The method according to  claim 1 , wherein the method also comprises a step
 (v) Application of an inorganic interspersing agent on the highly porous asphalt supporting layer from step (i).   
     
     
         3 . The method according to  claim 1 , wherein the highly porous asphalt supporting layer has a pore volume of 5-90%. 
     
     
         4 . The method according to  claim 1 , wherein the reaction resin mix is a two-component of epoxide resin resin compound. 
     
     
         5 . The method according to  claim 1 , wherein the adhesive promoter comprises polyolefins produced from the polymerization of ethylene with one or more unsaturated monomers selected from the group consisting of vinyl ester, maleic acid anhydride, acrylic acid, methacrylic acid, acrylic acid ester and methacrylic acid ester. 
     
     
         6 . The method according to  claim 5 , wherein the polyolefins have a melting point above 60° C. 
     
     
         7 . The method according to  claim 5 , wherein the amount of polyolefins is 15-60 wt %, relative to the total weight of the adhesive promoter. 
     
     
         8 . The method according to  claim 1 , wherein the adhesive promoter comprises a chemical expanding agent. 
     
     
         9 . The method according to  claim 1 , wherein the adhesive promoter comprises an epoxide solid resin. 
     
     
         10 . The method according to  claim 1 , wherein the adhesive promoter comprises at least one hydrocarbon resin. 
     
     
         11 . A road structure produced according to a method in accordance with  claim 1 . 
     
     
         12 . The method according to  claim 1  further comprising, increasing the adhesive composite breaking load and the adhesive tensile strength between a highly porous asphalt supporting layer poured with a reaction resin mix and a bitumen-based top layer.