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Title:

EVALUATION OF ASPHALT CEMENTS FOR LOW-TEMPERATURE PERFORMANCE

Accession Number:

00467868

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309044603

Abstract:

The primary objective of this research project was an evaluation of the temperature susceptibility and low-temperature fracture characteristics of asphalt cements from heavy crude sources in western Canada. Six samples of asphalt of grades 85/100 and 200/300 formulated from crude oils from Cold Lake, Lloydminster, and Redwater sources were tested to determine their physical properties. They were also used to prepare Marshall specimens for testing by the low-temperature indirect tensile test method at temperatures of 0 deg C, -10 deg C, -20 deg C and -30 deg C. From the results of the laboratory tests, it is concluded that the Redwater asphalt is the most temperature susceptible of the three asphalts studied. It was also confirmed that temperature as well as grade and crude source of asphalts have quite marked effects on the tensile properties of asphalt concrete mixtures. The asphalt cements produced from heavy crude sources of the Cold Lake and Lloydminster areas have been found to perform better at low temperature than those produced from the lighter crude source of the Redwater area. The 200/300 asphalt is also expected to perform better than the 85/100 asphalt. These observations are based on failure strain and stiffness values obtained by means of the indirect tensile test at various temperatures.

Supplemental Notes:

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 reservedmittee on Characteristics of Bituminous Materials.

Monograph Accession #:

01492601

Authors:

Leung, Sui C
Anderson, Kenneth O

Pagination:

pp 23-32

Publication Date:

1987

Serial:

Transportation Research Record

Issue Number: 1115
Publisher: Transportation Research Board
ISSN: 0361-1981

Conference:

66th Annual Meeting of the Transportation Board

Location: Washington District of Columbia, United States
Date: 1987-1-12 to 1987-1-15

ISBN:

0309044603

Media Type:

Print

Features:

Figures (8) ; References (15) ; Tables (4)

Uncontrolled Terms:

Indirect tensile test

Subject Areas:

Highways; Materials; I31: Bituminous Binders and Materials

Files:

TRIS, TRB, ATRI

Created Date:

Mar 31 1988 12:00AM

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