00621477

Component

http://onlinepubs.trb.org...trr/1991/1317/1317-010.pdf

https://scholar.google.co...erng&publication_year=1991

A cohesive crack model, which is similar to the Dugdale-Barenblatt model, was proposed to simulate the progressive crack development in asphalt concrete. Tensile strength, fracture energy, and the stress-separation relationship are the basic material properties associated with this model. To evaluate the material properties, indirect tensile tests and three-point bend tests were performed. From these experimental results, the effects of temperature on Young's modulus, the fracture energy, and the indirect tensile strength were evaluated. To determine the stress-separation relationship, a numerical simulation (or curve-fitting method) was used. Using the material properties obtained from the experimental study, temperature effects on different fracture parameters (i.e., critical stress intensity factor and critical J-integral) were studied. The theoretical predictions were found to be in good agreement with the available experimental results. This finding also indicates the potential applications of the proposed model in evaluating the performance of asphalt concrete pavements.

This paper appears in Transportation Research Record No. 1317, Asphalt Mixtures: Design, Testing, and Evaluation 1991. 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

01407169

p. 90-99

1991

Transportation Research Record

030905155X

Figures (14) ; References (16) ; Tables (3)

Asphalt concrete; Bend tests; Cracking; Fracture mechanics; Modulus of elasticity; Pavement performance; Simulation; Stresses; Temperature; Tensile strength; Tension tests

Crack propagation; Fracture energy; Indirect tensile test; Separation

Highways; Materials; Pavements; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials

TRIS, TRB, ATRI

Apr 30 1992 12:00AM

• DEVELOPMENT OF A PRACTICAL METHOD FOR DESIGN OF HOT-MIX ASPHALT
• EFFECT OF AGGREGATE GRADATION VARIATION ON ASPHALT CONCRETE MIX PROPERTIES
• EFFECT OF LOADING MAGNITUDE ON MEASURED RESILIENT MODULUS OF ASPHALTIC CONCRETE MIXES
• EFFECT OF TEMPERATURE AND MIXTURE VARIABLES ON FATIGUE LIFE PREDICTED BY DIAMETRAL FATIGUE TESTING
• EFFECT OF THE USE OF MODIFIERS ON PERFORMANCE OF ASPHALTIC PAVEMENTS
• EFFECTS OF SAMPLE PREPARATION AND AIR-VOID MEASUREMENT ON ASPHALT CONCRETE PROPERTIES
• EVALUATION OF MARSHALL AND HVEEM MIX DESIGN PROCEDURES FOR LOCAL USE
• EVALUATION OF MIX PROPERTIES OF COLD IN-PLACE RECYCLED MIXES
• EVALUATION OF RESIN-MODIFIED PAVING PROCESS
• INVESTIGATION OF RUTTING POTENTIAL USING STATIC CREEP TESTING ON POLYMER-MODIFIED ASPHALT CONCRETE MIXTURES
• MATERIAL CHARACTERIZATION AND INHERENT VARIATION ANALYSIS OF ASPHALTIC FIELD CORES
• METHODS TO DETERMINE POLYMER CONTENT OF MODIFIED ASPHALT
• NEW TECHNIQUE TO MEASURE MOISTURE IN HOT-MIX ASPHALT CONCRETE NONDESTRUCTIVELY
• PERFORMANCE ASSESSMENT OF BINDER-RICH POLYETHYLENE-MODIFIED ASPHALT CONCRETE MIXTURES (NOVOPHALT)