The variability of paving materials and the effects of such variations on the behavioral responses of pavement systems are evaluated. Methods for evaluating the effect of material variability on pavement system responses are presented and analyzed. Analyses are presented that evaluate the characteristic variations in components of pavement systems and methods of quantifying them. Factors such as the severity and location of variations are evaluated, and sensitivity analyses are performed to determine the relative and real effects of specific types, locations, and severities of the variations on pavement system responses. The paper discusses the relationship between the variability observed when discrete specimens of a material are tested and the variability of a continuum constructed from the same material. The importance of eliminating testing error and similar sources of error when the continuum is evaluated is emphasized. Monte Carlo simulation and other techniques are applied to obtain a pattern for pavement system responses on pavements with specific types of variations and loading conditions. Results show that the variability of the paving materials can have a profound effect on the responses of the pavement to load, especially to strain response, and that the location and extent of the variation are critical with respect to the response. Also, the Monte Carlo simulation technique for predicting the range of responses is limited unless a very large number of analyses are used in the simulation. /Author/

Media Info

  • Media Type: Print
  • Features: Figures; References;
  • Pagination: pp 27-38
  • Monograph Title: Role of probability and statistics in the structural analysis of pavements
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00139550
  • Record Type: Publication
  • ISBN: 0309024897
  • Files: TRIS, TRB
  • Created Date: Sep 16 1976 12:00AM