MEASUREMENT OF THE ELASTIC PROPERTIES OF GRANULAR MATERIALS USING A RESONANCE METHOD

The suitability of a simple resonance method of testing unbound granular materials as a method of characterising elastic properties relevant to transient pavement behaviour has been investigated. The elastic properties were found to be dependent on the loading history, the isotropic confining pressure, certain material characteristics and the deviator stress. The isotropic confining pressure could be varied in a range which was realistic for unbound granular pavement materials, and its magnitude appeared to be the major non-material factor affecting the elastic properties. Other non-material parameters likely to be important in influencing the behaviour of the material in the road could not be varied to a great extent however and it is evident that before drawing definite conclusions concerning the usefulness of the method it will be necessary to establish by some more powerful simulative technique the dependence of the elastic properties on some of these, in particular the deviator stress. /Author/TRRL/

• Corporate Authors:

  Transport and Road Research Laboratory (TRRL)

  Wokingham, Berkshire  United Kingdom 
• Authors:
  • Robinson, R G
• Publication Date: 1974

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: 26 p.
• Serial:
  • Issue Number: SR1

Subject/Index Terms

• TRT Terms: Aggregates; Deformation; Granular materials; Isotropy; Loads; Measurement; Mechanical elasticity; Modulus of elasticity; Poisson distributions; Poisson ratio; Pressure; Resonance; Shear strength; Stresses; Test procedures; Track ballast
• Uncontrolled Terms: Ballast; Loading
• ITRD Terms: 5595: Deformation; 4107: Granular; 5917: Isotropic; 5567: Load; 5919: Modulus of elasticity; 5924: Poisson's ratio; 5412: Pressure; 5569: Resonance; 5531: Shear; 5575: Stress (in material); 6288: Test method
• Subject Areas: Design; Geotechnology; Highways; Pavements; Railroads; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00096757
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: TRRL Rpt. 111 UC Series
• Files: ITRD, TRIS
• Created Date: Jul 24 1975 12:00AM