STRUCTURAL LAYER COEFFICIENT FOR FLEXIBLE PAVEMENT

The results of a study to derive structural layer coefficients of several Mississippi pavement materials - surface mixture and base mixture of asphalt concrete, soil-cement, and soil-lime - are presented. Fatigue cracking is the criterion employed in deriving the structural layer coefficients. A model is developed to estimate fatigue life or performance or both of pavements treating traffic, material characteristics, and environmental effects as stochastic variables. Although the inputs are probabilistic, the resulting model equation is deterministic and amenable to direct solution for the analysis/design of flexible pavements. Using this model with the stipulation that fatigue cracking in the wheel paths be less than 45%, the researcher establishes equivalent pavement cross sections. The layer equivalency of various materials is derived by comparing equivalent cross sections.

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  • Accession Number: 00387405
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Sep 28 1984 12:00AM