PREDICTING CAPACITIES OF LOW VOLUME AIRFIELD PAVEMENTS . THIRD INTERNATIONAL CONFERENCE ON BEARING CAPACITY OF ROADS AND AIRFIELDS. PROCEEDINGS, NORWEGIAN INSTITUTE OF TECHNOLOGY, TRONDHEIM, NORWAY, JULY 3-5 1990. VOLUMES 1-2

The ability to predict the capacity of marginal flexible pavement to sustain aircraft loadings is required, particularly in contingency situations and for pavements in Third World countries. Most evaluation procedures are developed for large numbers of repetitions of traffic and are not particularly accurate for less than 100 passes. This paper will describe an evaluation procedure for low traffic volume flexible pavements. The purpose of the study described in the paper was to develop a falling weight deflectometer (FWD)-based evaluation procedure to predict the allowable F-4 aircraft load and the allowable aircraft passes for marginal flexible pavements. Data from eleven pavement test sections that were trafficked to failure with an F-4 load cart were used to develop the evaluation methodology. Four of the test sections were constructed for the purpose of evaluating thin asphalt concrete (AC) surfaces. Seven test sections were environmentally aged pavements from 9 to 30 years old located in non-traffic areas of airfields. The FWD Impulse Stiffness Modulus (ISM) was selected as the best estimator for predicting the pavement performance for low-volume airfield pavements. A method for correcting ISM for temperature of the AC layer was developed. For evaluation, when California Bearing Ratio (CBR) is measured on all pavement layers, the Corps of Engineers CBR procedure is the next best estimator of performance of low volume pavements. (TRRL)

  • Availability:
  • Corporate Authors:

    Tapir

    Trondheim University, Gloeshaugen
    Trondheim-NTH,   Norway 
  • Authors:
    • BUSH, A J
    • Thompson, M R
  • Publication Date: 1990

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00612334
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • ISBN: 82-519-1033-1
  • Files: ITRD, TRIS
  • Created Date: Aug 31 1991 12:00AM