Aggregate Gradation for Highways Simplification, Standardization, and Uniform Application and a New Graphical Evaluation Chart
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Aggregate Gradation for Highways Simplification, Standardization, and Uniform Application and a New Graphical Evaluation Chart

Filetype[PDF-2.40 MB]


English
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  • Alternative Title:
    Aggregate Gradation: Simplification, Standardization, and Uniform Application and a New Graphical Chart for Evaluating Aggregate Gradation
  • Corporate Creators:
    United States. Department of Commerce. Bureau of Public Roads
  • Contributors:
  • Subject/TRT Terms:
  • Resource Type:
    Tech Report
  • Right Statement:
    Public Domain
  • Geographical Coverage:
    United States
  • Corporate Publisher:
    United States. Department of Commerce. Bureau of Public Roads
  • Abstract:
    The tremendous highway improvement program now underway in the United States has sparked the development of many new methods and techniques for engineering and construction. Their range has been diverse, but all have had common objectives: The most effective use of manpower, materials, machinery, and money. Some of the developments have been novel, even spectacularnew applications of photogrammetry, automatic guidance of roadbuilding machines, nuclear testing, and use of the electronic computer, for example. But there are other, less dramatic approaches toward the stated objectives that can be equally significant and equally productive of efficiency and economy. Among these lies an especially fertile field-simplification, standardization, and uniformity, within reason, of design practices and construction specifications. Within this broad area, aggregate gradation specifications seem particularly susceptible to improvement. It was with this objective that the Bureau of Public Roads undertook the analytical study reported in the first article in this pamphlet. It merits the careful consideration of all roadbuilding agencies and, it is hoped, prompt attention along the lines of the recommended course of action. Because it is closely related to the objective of improving aggregate gradations, there is included in this pamphlet an article on the development and use of the new Public Roads graphical chart for evaluating aggregate gradations.
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    PDF
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