EFFECTS OF ASPHALT PROPERTIES ON INDIRECT TENSILE STRENGTH
The indirect tensile test on asphalt concrete mixes is a frequently used procedure for assessing likely pavement performance. Currently, the indirect tensile test is most commonly used for providing information on moisture susceptibility. However, the indirect tensile test may also be used to determine engineering properties needed for elastic and viscoelastic analyses and for evaluating thermal cracking, fatigue cracking, and potential problems with tenderness. Given the importance of this test, there appears to be a lack of information on the factors that determine indirect tensile strength (IDTS) of asphalt mixes. Consequently, the effects of asphalt composition and physical properties on IDTS values were obtained. Mixes were made with 15 different types of asphalt and with 2 different types of aggregate (traprock and gravel). Asphalt composition was characterized by gel permeation chromatographic analysis. The penetration of the thin-film oven test residue and IDTS values were strongly correlated. The IDTS values increase as penetration decreases. Asphalt composition also plays a significant role in determining the IDTS values of traprock mixes. Asphalt composition seems to account for differences of up to 55% in IDTS values of traprock mixes. However, the effect of asphalt composition on gravel mixes appears to be much less pronounced.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/0309050502
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Supplemental Notes:
- This paper appears in Transportation Research Record No. 1269, Asphalt Mix Materials and Mixtures 1990. 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:
- Garrick, Norman W
- Biskur, Ramesh R
- Publication Date: 1990
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 26-39
- Monograph Title: Asphalt mix materials and mixtures, 1990
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Serial:
- Transportation Research Record
- Issue Number: 1269
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Asphalt; Asphalt concrete; Gel permeation chromatography; Gravel; Materials selection; Oven tests; Pendulum tests; Physical properties; Tensile strength; Tension tests; Thin films; Trap rock
- Uncontrolled Terms: Indirect tensile test; Thin film oven test
- Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;
Filing Info
- Accession Number: 00602680
- Record Type: Publication
- ISBN: 0309050502
- Files: TRIS, TRB, ATRI
- Created Date: Dec 31 1990 12:00AM