George W. Tillson
Published: 2015-08-05
Total Pages: 26
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Excerpt from Specifications for Sheet Asphalt Paving, Adopted October 14, 1915: These Specifications Will Be Modified From Time to Time to Keep Them Fully Up to Date, Suggestions as to Modifications or Additions Are Solicited and Should Be Sent to the Secretary, or to Francis P. Smith, 131-3 East 23d St., New York City, Chairman of T 1. Upon the foundation prepared and laid as elsewhere herein specified, shall be laid the pavement proper. This shall consist of: 1. A binder course ... inches in thickness when compressed. 2. An asphalt wearing surface ... inches in thickness when compressed. Materials. 2. The materials used must comply with the requirements of these specifications and be suitable for use upon the street or streets to be paved. They shall be mixed in definite proportions by weight, depending upon their character, and the traffic upon the street, and such materials and proportions must be satisfactory to the Engineer. 3. Methods of Testing - All tests herein specified must be conducted according to official methods on file in the office of the Engineer. All penetrations at 77 degrees Fahrenheit are expressed in hundredths of a centimeter and are to be taken (except where otherwise specified) with a number two needle acting for five (5) seconds without appreciable friction under a total weight of one hundred (100) grams. 4. Refined Asphalts - The refined asphalts admitted under these specifications shall be prepared from a natural mineral bitumen, either solid or liquid, or from combinations thereof, by such methods of refining as will produce a product complying with the requirements hereinafter given. The preparation and refining of all asphalts admitted under these specifications shall be subject to such inspection at the paving plants and refineries as the Engineer may direct. Every refined asphalt admitted under these specifications, if required by the Engineer, shall be equal in quality to the recognized standard for its particular kind or type of asphalt. If desired, the Contractor may use an asphalt cement prepared at the refinery. To be acceptable this asphalt cement must comply with the foregoing general requirements for refined asphalt, as well as requirements a, b, c, d, and e for asphalt cement. 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.