Excerpt from Specifications for Bituminous Concrete With One Product of Stone Crushing Plant: Adopted October 14, 1915 General. Description. The bituminous concrete wearing course shall consist of a compact mixture of broken stone and asphalt cement or refined tar laid to conform to the required grades and cross sections, covered with i a seal coat of asphalt cement and broken stone chips, and constructed as hereinafter specified. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.