Surface Course

 

 

 

 

 

 

The description of the surface course depends on the size of the aggregate and the density used in its make up.

The size varies from 20mm normal size to 6mm nominal size. The most common ones are 6mm and 10mm.

The density is either open graded, medium graded or dense.

6mm dense surface course is commonly used on drives, playgrounds and footpaths.

10mm open graded surface course is used on a surface that requires porosity.

The open graded materials are generally less strong then the dense materials.

The standard colour of surface course in black but with colour Resin bonded macadam, it is also available in buff, green and red finishes. Unfortunatly colour Resin bonded macadam is significantly more expensive.