wearing course

noun

1. the top layer of a road that carries the traffic; road surface Also calledcarpettopping

Example Sentences

Bitulithic or Warrenite.—The stone employed for these types is graded down from a size about equal to one-half of the thickness of the wearing course, and stone passing a 1¼ or 1½-inch screen is usually specified.

From Project Gutenberg

The wearing course of the mixed macadam is composed of graded broken stone or gravel and a bituminous binder.

From Project Gutenberg

Usually if the traffic is of a character requiring a concrete foundation, it is desirable to use a better wearing course than the mixed macadam, and the asphaltic concrete or sheet asphalt type of surface is employed.

From Project Gutenberg

It is the usual practice to permit gravel to be used for the foundation course in which the pebbles are as large as will pass a 3½-inch circular screen opening, and for the wearing course, as large as will pass a 2½-inch circular screen opening.

From Project Gutenberg

If larger pebbles are allowed in the wearing course, the surface is certain to become rough after a time.

From Project Gutenberg