Method for slope improvement

Abstract

A method for slope improvement including layering a life-extending layer on the surface of a protective layer made from mortar or concrete sprayed onto a slope in order to prevent rain water or the like from entering cracks in the protective layer, inhibit degradation of the protective layer, and prevent mortar pieces or concrete pieces from spalling off the protective layer, the method for slope improvement being characterized in that the life-extending layer is formed by a coating layer that has a crack conformability of 0.8 mm or larger and has salt-blocking properties and neutralization-preventing properties.

1 . A method for slope face improvement, in which a lifespan-extending layer is layered on a surface of a protective layer comprising mortar or concrete sprayed on a slope face, whereby penetration of rainwater from cracks that form in the protective layer is prevented, degradation of the protective layer is restricted, and detachment of mortar pieces or concrete pieces from the protective layer is prevented,
 wherein a coating layer having crack-following properties of 0.8 mm or greater, salt-blocking properties and neutralization-preventing properties is formed as the lifespan-extending layer.   
     
     
         2 . The method for slope face improvement as claimed in  claim 1 , wherein the coating layer comprises a polymer compound. 
     
     
         3 . The method for slope face improvement as claimed in  claim 1 , wherein a primer layer is formed between the protective layer and the lifespan-extending layer. 
     
     
         4 . The method for slope face improvement as claimed in  claim 1 , wherein a topcoat layer is formed on the lifespan-extending layer. 
     
     
         5 . The method for slope face improvement as claimed in  claim 2 , wherein the polymer compound is at least one selected from the group consisting of: polyurethane resin, polyurea resin, epoxy resin and acrylic resin. 
     
     
         6 . The method for slope face improvement as claimed in  claim 2 , wherein a primer layer is formed between the protective layer and the lifespan-extending layer. 
     
     
         7 . The method for slope face improvement as claimed in  claim 2 , wherein a topcoat layer is formed on the lifespan-extending layer. 
     
     
         8 . The method for slope face improvement as claimed in  claim 3 , wherein a topcoat layer is formed on the lifespan-extending layer. 
     
     
         9 . The method for slope face improvement as claimed in  claim 6 , wherein a topcoat layer is formed on the lifespan-extending layer. 
     
     
         10 . The method for slope face improvement as claimed in  claim 3 , wherein the polymer compound is at least one selected from the group consisting of: polyurethane resin, polyurea resin, epoxy resin and acrylic resin. 
     
     
         11 . The method for slope face improvement as claimed in  claim 6 , wherein the polymer compound is at least one selected from the group consisting of: polyurethane resin, polyurea resin, epoxy resin and acrylic resin. 
     
     
         12 . The method for slope face improvement as claimed in  claim 4 , wherein the polymer compound is at least one selected from the group consisting of: polyurethane resin, polyurea resin, epoxy resin and acrylic resin. 
     
     
         13 . The method for slope face improvement as claimed in  claim 7 , wherein the polymer compound is at least one selected from the group consisting of: polyurethane resin, polyurea resin, epoxy resin and acrylic resin. 
     
     
         14 . The method for slope face improvement as claimed in  claim 8 , wherein the polymer compound is at least one selected from the group consisting of: polyurethane resin, polyurea resin, epoxy resin and acrylic resin. 
     
     
         15 . The method for slope face improvement as claimed in  claim 9 , wherein the polymer compound is at least one selected from the group consisting of: polyurethane resin, polyurea resin, epoxy resin and acrylic resin.