What types of whitetopping are there?
Whitetopping is commonly classified into three categories: conventional whitetopping, thin whitetopping, or ultra-thin whitetopping (UTW). The classes are based on the thickness of the new concrete layer. Conventional whitetopping is the thickest, constructed with 8 inches or more of concrete. Ultra-thin whitetopping is the thinnest class, commonly constructed from 2 to 4 inches thick. Thin whitetopping is the intermediate thicknesses 4 to 8 inches where new opportunities lie to, in some cases, significantly increase the life of an existing pavement.
