00674330

Component

http://onlinepubs.trb.org...trr/1994/1448/1448-008.pdf

https://scholar.google.co...ohde&publication_year=1994

A structural number is used as an indicator of pavement strength in a number of pavement design and deterioration models. In determining the structural number of an existing pavement structure, traditional methods of laboratory testing have become expensive and are not always appropriate. The parameter preferably is obtained from nondestructive deflection testing. Currently two techniques to determine structural numbers from surface deflections have been suggested and documented by AASHTO. A powerful alternative procedure for determining a pavement's structural number from falling-weight deflectometer surface deflections is presented. The approach has been verified and compared with other available techniques on 62 in-service pavement sections. The method is rapid, does not need mechanistic analysis tools, and is highly suitable for characterizing pavement strength in pavement management systems.

This paper appears in Transportation Research Record No. 1448, Strength and Deformation Characteristics of Pavement Sections. 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

01401281

English

p. 61-68

1994

Transportation Research Record

Figures (5) ; References (17) ; Tables (5)

Deflection; Falling weight deflectometers; Nondestructive tests; Pavement structural numbers; Pavements

Rapid methods

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

TRIS, TRB, ATRI

Feb 23 1995 12:00AM

• ABRIDGED PROCEDURE TO DETERMINE PERMANENT DEFORMATION OF ASPHALT CONCRETE PAVEMENTS
• BACKCALCULATION OF FLEXIBLE PAVEMENT MODULI USING ARTIFICIAL NEURAL NETWORKS
• COMPUTERIZED OVERLOAD PERMITTING PROCEDURE FOR INDIANA
• FIELD BEHAVIOR AND MODELING OF CRACKED-AND-SEATED SEMIRIGID PAVEMENT AFTER REHABILITATION
• FINITE ELEMENT SIMULATION OF PAVEMENT DISCONTINUITIES AND DYNAMIC LOAD RESPONSE
• INFLUENCE OF STRESS LEVELS AND SEASONAL VARIATIONS ON IN SITU PAVEMENT LAYER PROPERTIES
• INVESTIGATION OF SPATIAL REPEATABILITY USING A TIRE FORCE MEASURING MAT
• MODELING OF PAVEMENT RESPONSE UNDER SUPERHEAVY LOADS
• PAVEMENT STRAINS INDUCED BY SPENT-FUEL TRANSPORTATION TRUCKS
• THREE-DIMENSIONAL DYNAMIC RESPONSE MODEL FOR RIGID PAVEMENTS
• THREE-DIMENSIONAL, FINITE-ELEMENT SIMULATION OF PERMANENT DEFORMATIONS IN FLEXIBLE PAVEMENT SYSTEMS
• VARIATION OF DEFLECTION WITH MEASURING EQUIPMENT AND LOAD SPEED ON TEST TRACK