Chapter 10

BITUMINOUS ROAD MATERIALS AND THEIR USE

Classes of Bituminous Materials--Coal Tar--Water Gas Tar--Natural Asphalt--Petroleum Asphalt--Mixtures--Classification According to Consistency--Road Oils--Liquid Asphalts--Asphalt Cements-- Fillers--Bitumen--Specifications--Surface Treatments--Applying the Bituminous Binder--Finishing the Surface--Patching-- Penetration Macadam--Foundation--Upper or Wearing Course-- Patching Characteristics--Hot Mixed Macadam--Foundation--Sizes of Stone--Mixing the Wearing Stone--Placing and Wearing Surface--Seal Coat--Characteristics--Asphaltic Concrete-- Bitulithic or Warrenite--Topeka Asphaltic Concrete--Foundation --Placing the Surface--Characteristics 116-129