A STUDY OF THE TEMPERATURE-DEPENDENT RHEOLOGICAL CHARACTERISTICS OF ASPHALTIC-CONCRETE
CONSTANT-LOAD COMPRESSIVE TESTS WERE PERFORMED ON THE CYLINDRICAL TEST SPECIMENS. USING A STANDARD CREEP TESTING PROGRAM, THE INSTANTANEOUS ELASTIC, THE RETARDED ELASTIC, THE RETARDED ELASTIC, AND THE VISCOUS COMPONENTS OF THE TOTAL DEFORMATION WERE RECORDED AND ANALYZED. CYCLIC REPETITION OF LOADING AND UNLOADING WAS STUDIED. KINEMATIC VISCOSITY OF THE ASPHALTS USED IN THE BITUMINOUS MIXTURES WAS MEASURED, USING A SLIDING PLATE MICROVISCOMETER. CORRELATIONS BETWEEN TEMPERATURE, THE ORIGINAL ASPHALT VISCOSITY, THE RECOVERED BINDER VISCOSITY, THE ASPHALTIC- CONCRETE MIXTURE VISCOSITY, MIXTURE RHEOLOGICAL STRENGTH MODULI, AND MIXTURE DEFORMATIONS UNDER LOAD HAVE BEEN DEVELOPED FOR A WIDE RANGE OF LOADING TIMES. THE APPLICATION OF APPARENT ACTIVATION ENERGY CONCEPTS, THE LINEAR VISCOELASTIC THEORY, AND THE TIME-TEMPERATURE SUPERPOSITION PRINCIPLE TO DEFINE THE MECHANICAL PROPERTIES OF ASPHALTIC- CONCRETE MIXTURES UNDER THE CONDITIONS STUDIED HAS BEEN RIGOROUSLY INVESTIGATED AND VALIDATED.
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Supplemental Notes:
- Paper sponsored by Committee on Mechanical Properties of Bituminous Paving Mixtures and presented at the 45th Annual Meeting. 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
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Authors:
- Pagen, Charles A
- Publication Date: 1967
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 116-143
- Monograph Title: Bituminous concrete mixes
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Serial:
- Highway Research Record
- Issue Number: 158
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Activation (Chemistry); Asphalt concrete; Compression tests; Concrete; Creep; Deformation; Innovation; Linearity; Loading and unloading; Modulus of elasticity; Rheological properties; Specimens; Strength of materials; Temperature; Theory; Viscoelasticity; Viscosity
- Old TRIS Terms: Activation; Compressive strength tests; Concepts; Concrete creep; Loading time
- Subject Areas: Highways; Materials;
Filing Info
- Accession Number: 00210647
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Apr 20 1994 12:00AM