00625545

Component

http://onlinepubs.trb.org...trr/1992/1355/1355-007.pdf

https://scholar.google.co...ando&publication_year=1992

Multidepth deflectometers (MDDs) were successfully used to assess the relative damage of dual and wide base single tires. In this study MDDs were installed in two in-service asphaltic concrete highways (one thick, one thin) to measure the pavement response to vehicle loading. A specially configured 3S2 truck was used in the study. It is an 18-wheel water tanker that was converted to a 14-wheel tanker for this study. For the first set of data collection, dual tires were used on the tandem drive axle with wide base single tires on the tandem trailer axle. For the second set, wide base single tires were used on the tandem drive axle and dual tires on the trailer axle. Deflections measured at several depths within the pavement by MDD under dual and wide base single tires were used to calculate average vertical compressive strains. The Asphalt Institute subgrade limiting strain criteria were used to estimate the reduction in pavement life that will occur by using the wide base single tires in place of duals. Wide base single tires were found to be more damaging on both tandem drive and tandem trailer axle positions. At a speed of 55 mph and equivalent axle loading, it was found that the wide base single tires (trailer axle) reduced the anticipated pavement life on the thin and thick sections by a factor of between 2.5 and 2.8 over that predicted for standard dual tires.

This paper appears in Transportation Research Record No. 1355, Nondestructive Structural Evaluation of Pavements. 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

01405034

English

p. 59-66

1992

Transportation Research Record

030905219X

Figures (13) ; References (13) ; Tables (4)

Axle load force; Deflectometers; Pavements; Service life; Tires; Trucks

Dual tires; Wide base tires

Design; Highways; Motor Carriers; Pavements; Vehicles and Equipment; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

TRIS, TRB, ATRI

Dec 16 1993 12:00AM

• ALTERNATIVE METHOD FOR TEMPERATURE CORRECTION OF BACKCALCULATED EQUIVALENT PAVEMENT MODULI
• COMPREHENSIVE EVALUATION OF FIVE SENSORS USED TO MEASURE PAVEMENT DEFLECTION
• EFFECT OF DEPTH TO BEDROCK ON DEFLECTION BASINS OBTAINED WITH DYNAFLECT AND FALLING WEIGHT DEFLECTOMETER TESTS
• EFFECTS OF BUFFERS ON FALLING WEIGHT DEFLECTOMETER LOADINGS AND DEFLECTIONS (WITH DISCUSSION)
• EVALUATION OF A DUAL-LOAD NONDESTRUCTIVE TESTING SYSTEM TO BETTER DISCRIMINATE NEAR-SURFACE LAYER MODULI
• FIELD AND LABORATORY DETERMINATION OF ELASTIC PROPERTIES OF PORTLAND CEMENT CONCRETE USING SEISMIC TECHNIQUES
• MODELING OF GROUND-PENETRATING RADAR WAVE PROPAGATION IN PAVEMENT SYSTEMS
• NONLINEAR EFFECTS IN FALLING WEIGHT DEFLECTOMETER TESTS
• RADAR PAVEMENT THICKNESS EVALUATIONS FOR VARYING BASE CONDITIONS
• SIMPLIFIED, RATIONAL APPROACH TO FALLING WEIGHT DEFLECTOMETER DATA INTERPRETATION
• VARIABILITY IN ESTIMATION OF STRUCTURAL CAPACITY OF EXISTING PAVEMENTS FROM FALLING WEIGHT DEFLECTOMETER DATA