Granular Bases for Heavily Loaded Pavements

Abstract

This research improves the understanding of the permanent deformation characteristics of granular materials under repeated, reversed shear loadings in flexible pavements. In the laboratory, triaxial tests provided vertical repeated loadings, and a hollow cylinder apparatus was used to apply reversing shear stresses and associated rotating principal planes. The laboratory tests were analogous to larger scale tests that were run, using vertical plate and tire loadings. It was found that higher material densities lead to large improvements in permanent deformation resistance, and permanent deformation is significantly more when stresses are reversed in both the laboratory and in the field. The findings were validated, using two fully-instrumented pilot scale trafficking tests.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1993
Accession Number
ADA275171

Entities

People

  • S. F. Brown
  • W. K. Chan

Organizations

  • University of Nottingham

Tags

Communities of Interest

  • Engineered Resilient Systems

DTIC Thesaurus Topics

  • Actuators
  • Air Force Facilities
  • Civil Engineering
  • Computer Programming
  • Computer Programs
  • Computers
  • Engineering
  • High Density
  • Laboratory Tests
  • Materials
  • Measurement
  • Mechanical Properties
  • Shear Stresses
  • Stress Strain Relations
  • Stresses
  • Test Facilities
  • Test Methods

Readers

  • Explosive Engineering.
  • Fluid Dynamics.
  • Pavement Materials Engineering.