The Effect of Aggregate Angularity on Base Course Performance

Abstract

The Vermont Agency of Transportation (VAOT) conducted a two-phase study to quantify the resilient modulus and strength characteristics of its subbase material. In Phase 1, a literature review was done to determine the various methods available for indexing the shape, texture, and angularity of coarse aggregates. In the second phase, described in this report, a study was conducted to relate particle index to the mechanical resilient and shear properties of base course materials. The particle index as modified by the Michigan Department of Transportation used the complete gradation and was a good indicator of the crushed (angular) content of a given base course gradation. The particle index test also may be used to indicate resilient and shear properties of base course aggregate gradation.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2001
Accession Number
ADA400534

Entities

People

  • John J. Bayer Ii
  • Vincent C. Janoo

Tags

DTIC Thesaurus Topics

  • Civil Engineering
  • Engineering
  • Engineers
  • Granular Materials
  • Internal Friction
  • Literature Surveys
  • Materials
  • Measurement
  • Mechanical Properties
  • Michigan
  • Moisture Content
  • Shear Properties
  • Shear Strength
  • Shear Stresses
  • Shear Tests
  • Test Methods
  • United States

Readers

  • Pavement Materials Engineering.