EVALUATION OF ELASTIC MODULUS OF PAVEMENT LAYERS AND MATERIALS BY DIFFERENT METHODS - A REVIEW

This paper reviews existing methods to determine the elastic modulus (E-values) of pavement layers, and discusses experiments on elastic modulus conducted by various investigators. The first approach to measuring a material's E-value is to conduct laboratory testing on laboratory-compacted specimens or undisturbed pavement samples; it is time-consuming and destroys the pavement structure. Its methods include: the plate load test, the repeated triaxial compression test, and the indirect tensile test. The second approach is to use non-destructive techniques, including: static deflections, steady state deflections, impact load response, and wave propagation. The article also briefly discusses the comparison between static and dynamic E-values, and the relationship between the E-value and the California Bearing Ratio (CBR). Tables are included to compare the range of values for dynamic E-value, based on the data available from experiments by various investigators. The tables use various classifications and groupings of the data, including variations of E-values based on type of pavement layer, velocity of hauling or test vehicle, season, or equipment type. Five conclusions from the review and comparisons are presented.

  • Availability:
  • Corporate Authors:

    Indian Roads Congress

    Jamnagar House, Shahjahan Road
    New Delhi,   India  110 011
  • Authors:
    • MURTHY, R S
    • SUKUMARAN, K
  • Publication Date: 1996-4

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 23-45
  • Serial:
    • Indian Highways
    • Volume: 24
    • Issue Number: 4
    • Publisher: Indian Roads Congress
    • ISSN: 0376-7256

Subject/Index Terms

Filing Info

  • Accession Number: 00729727
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Dec 26 1996 12:00AM