00637680

Component

http://onlinepubs.trb.org...trr/1993/1388/1388-012.pdf

A procedure for estimating the remaining fatigue life of existing bituminous pavements has been developed. This procedure incorporates laboratory fatigue data for tensile strain or surface curvature in terms of repetitions to failure. It also utilizes laboratory data on reduction of flexural stiffness with load repetitions. The proposed method was applied to investigate the remaining fatigue life of a dense-graded conventional asphalt concrete mix (CAC-DG) and a gap-graded asphalt-rubber hot mix (ARHM-GG) using laboratory flexure fatigue data and multilayer elastic analysis of typical pavement sections. Results show that for a given initial state of fatigue damage, the remaining fatigue life of ARHM-GG could be significantly longer than that of CAC-DG. It is also illustrated that thinner sections of ARHM-GG, compared with CAC-DG, will exhibit the same remaining fatigue life. This reduction in thickness becomes more significant with increasing foundation support under the pavement surface layer.

This paper appears in Transportation Research Record No. 1388, Rigid and Flexible Pavement Design and Rehabilitation. 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

01403222

English

p. 97-107

1993

Transportation Research Record

0309054575

Figures (15) ; References (12) ; Tables (3)

Asphalt concrete; Asphalt rubber; Elastic analysis; Estimating; Fatigue (Mechanics); Flexural strength; Gap grading; Hot mix asphalt; Laboratory tests; Repeated loads; Stiffness; Tension; Test sections; Thickness

Fatigue life; Flexural fatigue

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

TRIS, TRB, ATRI

Sep 28 1993 12:00AM

• ANALYSIS OF CRACK RESISTANCE OF ASPHALT CONCRETE OVERLAYS--A FRACTURE MECHANICS APPROACH
• ANALYTICAL AND EXPERIMENTAL INVESTIGATIONS OF OPERATING MECHANISMS IN REINFORCED ASPHALT PAVEMENTS
• ANALYTICAL CONSIDERATIONS FOR THIN CONCRETE OVERLAYS ON ASPHALT
• APPLICATION OF CRACKING AND SEATING AND USE OF FIBERS TO CONTROL REFLECTIVE CRACKING
• BREAKING AND SEATING OF CONCRETE PAVEMENTS: KENTUCKY'S EXPERIENCE
• COMPARISON OF FOUR DIFFERENT METHODS FOR MEASURING DEFLECTIONS IN JOINTED REINFORCED CONCRETE PAVEMENTS
• DEVELOPMENT AND IMPLEMENTATION OF A MECHANISTIC, EMPIRICALLY BASED OVERLAY DESIGN PROCEDURE FOR FLEXIBLE PAVEMENTS
• DEVELOPMENT OF STRATEGIC HIGHWAY RESEARCH PROGRAM LONG-TERM PAVEMENT PERFORMANCE CLIMATIC DATA BASE
• DIRECT TENSION AND SIMPLE STIFFNESS TESTS--TOOLS FOR THE FATIGUE DESIGN OF ASPHALT CONCRETE LAYERS
• EFFECTS OF TEMPERATURE ON EARLY CRACK FORMATION IN PORTLAND CEMENT CONCRETE PAVEMENTS
• ESTIMATION OF AXLE LOADS OF HEAVY VEHICLES FOR PAVEMENT STUDIES
• EXAMINATION OF PURE ENVIRONMENTAL EFFECTS ON PAVEMENT CONDITION
• LOAD EQUIVALENCY CONCEPTS: A MECHANISTIC REAPPRAISAL
• MAJOR FACTORS EXPLAINING PERFORMANCE VARIABILITY OF SEAL COAT PAVEMENT REHABILITATION OVERLAYS
• MAXIMUM BEARING STRESS OF CONCRETE IN DOWELED PORTLAND CEMENT CONCRETE PAVEMENTS (WITH DISCUSSION AND CLOSURE)
• PERFORMANCE MONITORING OF JOINT LOAD TRANSFER RESTORATION
• PERFORMANCE OF INTERLOCKING CONCRETE PAVEMENTS IN NORTH AMERICA
• REHABILITATION PROCEDURES FOR FAULTED RIGID PAVEMENT
• RIGID PAVEMENT DESIGN FOR PORTS IN CHILE
• SYSTEMS APPROACH TO THE USE OF AUTOMATION TECHNOLOGY IN DRILLED FOUNDATION CONSTRUCTION
• THEORETICAL ANALYSIS OF THE EFFECTS OF WIDE-BASE TIRES ON FLEXIBLE PAVEMENTS USING CIRCLY
• USE OF A THREE-DIMENSIONAL, DYNAMIC FINITE ELEMENT PROGRAM FOR ANALYSIS OF FLEXIBLE PAVEMENT