Abstract:
ACCELERATED TRAFFIC TESTS HAVE BEEN COMPLETED ON TWO FULL-SCALE TEST PAVEMENTS. THE TRAFFIC LOADINGS APPLIED WERE 150,000 LB. WITH A SINGLE WHEEL AND WITH A FOUR-WHEEL OR TWIN-TANDEM-GEAR CONFIGURATION. A COMPLETE DESCRIPTION OF THE TEST PAVEMENTS FOR THE MULTIPLE OR TWIN-TANDEM-WHEEL LOADING IS PRESENTED. THE TEST RESULTS GIVEN INCLUDE THE CRACK-PATTERN DEVELOPMENT ON THESE PAVEMENTS, AS WELL AS STRAIN AND DEFLECTION MEASUREMENTS AT SELECTED INTERVALS THROUGHOUT THE TRAFFIC LOADING. THIS LATTER IS OFFICIALLY DESIGNATED AS LOCKBOURNE NO. 2 MODIFICATION, MULTIPLE-WHEEL STUDY. COMPARATIVE STRAINS PRODUCED IN A 20-IN. THICK PAVEMENT ARE GIVEN FOR THE SINGLE AND MULTIPLE LOADINGS. RESULTS OF ALL ACCELERATED TRAFFIC TESTS OBTAINED THROUGHOUT THE PROGRAM ARE SUMMARIZED ON A CHART SHOWING TENTATIVELY THE PERCENT OF DESIGN THICKNESS REQUIRED FOR A GIVEN NUMBER OF LOAD REPETITIONS. /AUTHOR/
Supplemental Notes:
Vol 31, pp 87-100, FIGS, TABS, PHOT, 5 REF. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
