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Title:

RELATION OF ASPHALT PAVEMENT VARIABLES TO PERFORMANCE /WITH DISCUSSION/

Accession Number:

00210281

Record Type:

Component

Abstract:

PLASTIC DEFORMATION IN ASPHALT PAVEMENTS DETERMINES THE CONTRIBUTION OF TWO IMPORTANT FACTORS, SLOPE VARIANCE AND RUT DEPTH, IN THE AASHO SERVICEABILITY EQUATION. PREVIOUS RESEARCH ON A LABORATORY TEST TRACK SHOWED THE DEPENDENCE OF PLASTIC DEFORMATION ON THE VISCOSITY OF THE ASPHALT UNDER PAVEMENT CONDITIONS. THIS RESEARCH HAS NOW BEEN EXTENDED TO DETERMINE, ON 66 PAVEMENTS, THE EFFECT OF PAVEMENT VARIABLES SUCH AS ASPHALT CONTENT, FINES CONTENT AND COMPACTION. FACTORS AFFECTING ASPHALT VISCOSITY /TEMPERATURE SUSCEPTIBILITY, MIXING AT HIGH TEMPERATURE, AND AGING IN THE PAVEMENTS/ WERE ALSO STUDIED. THE CONTRIBUTIONS AND INTERACTIONS OF PAVEMENT AND ASPHALT VARIABLES WERE COMBINED IN A SINGLE EQUATION BY MEANS OF LEAST SQUARES MULTIPLE REGRESSION, ENABLING COMPARISON OF THE RELATIVE EFFECTS OF COMMON VARIATIONS IN THESE PROPERTIES. RESULTS ARE ILLUSTRATED BY A BAR CHART. CHARTS PRESENTED RELATE ACTUAL DEFORMATION TO THAT PREDICTED BY THE REGRESSION EQUATION. THE BASIC FORM OF THE EQUATION SHOULD NOW BE TESTED WITH DATA FROM ACTUAL ROADS IN SERVICE. /AUTHOR/

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 reserved.

Monograph Accession #:

01410060

Authors:

Brunstrum, L C
Ott, L E
Sisko, A W
Speer, T L
Wilke, R A
Evans, J V
Foster, C R

Discussers:

Foster, C R; Brunstrum, L C; Ott, L E; Sisko, A W; Speer, T L; Wilke, R A; Evans, J V

Pagination:

pp 1-17

Publication Date:

1965

Serial:

Highway Research Record

Issue Number: 104
Publisher: Highway Research Board

Media Type:

Digital/other

Features:

Appendices (1) ; Figures (14) ; References (3) ; Tables (7)

Identifier Terms:

AASHO Road Test

Uncontrolled Terms:

Rut; Serviceability Index

Old TRIS Terms:

Subject Areas:

Data and Information Technology; Design; Highways; Materials; Pavements

Files:

TRIS, TRB

Created Date:

Oct 7 1994 12:00AM

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