00602680

Component

http://onlinepubs.trb.org...trr/1990/1269/1269-004.pdf

https://scholar.google.co...skur&publication_year=1990

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.

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

01407214

p. 26-39

1990

Transportation Research Record

0309050502

Figures (17) ; References (7) ; Tables (11)

Asphalt; Asphalt concrete; Gel permeation chromatography; Gravel; Materials selection; Oven tests; Pendulum tests; Physical properties; Tensile strength; Tension tests; Thin films; Trap rock

Indirect tensile test; Thin film oven test

Highways; Materials; I31: Bituminous Binders and Materials

TRIS, TRB, ATRI

Dec 31 1990 12:00AM

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• COMPARATIVE STUDY OF MANGANESE-TREATED AND CONVENTIONAL ASPHALT CONCRETE MIXTURES AND PAVEMENTS
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• SOLVENT REMOVAL FROM ASPHALT
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