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Title:

PAVING ASPHALT PROPERTIES

Accession Number:

00211685

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309019621

Abstract:

AN INVESTIGATION OF CHANGES IN THE ASPHALT CONTAINED IN ASPHALTIC MIXES WAS UNDERTAKEN TO GAIN AN UNDERSTANDING OF THE FACTORS AFFECTING THE DURABILITY OF ASPHALT PAVEMENTS. PAVEMENTS WERE CONSTRUCTED TO DETERMINE PENETRATION-ABSOLUTE VISCOSITY RELATIONSHIPS FOR THE DIFFERENT ASPHALTS USED. SIX DIFFERENT ASPHALTS WERE USED, VARYING IN PENETRATION AND ABSOLUTE VISCOSITY. THREE PAVEMENTS WERE CONSTRUCTED BY USING THE SAME 6 ASPHALTS, BUT EACH WAS CONSTRUCTED WITH DIFFERENT AGGREGATE TYPES. INVESTIGATIONS WERE CONFINED TO THE WEARING COURSE. THE TEST PAVEMENTS WERE ASPHALTIC CONCRETE OVERLAYS ON PORTLAND CEMENT CONCRETE. FIELD DATA WERE ACCUMULATED DURING CONSTRUCTION AND PERIODICALLY AFTER CONSTRUCTION. PENETRATION, ABSOLUTE VISCOSITY, AND ASPHALTENE DETERMINATIONS WERE MADE. RESULTS FROM THESE PROJECTS INDICATE THAT A LOW-VISCOSITY ASPHALT (90 TO 100 PENETRATION AND 900 PLUS OR MINUS 200 POISE VISCOSITY) IS PERFORMING AS WELL AS OR BETTER THAN THE OTHER ASPHALTS. THIS IS BASED ON A RATING SYSTEM, DEVISED BY THE AUTHORS, RELATING PHYSICAL AND CHEMICAL CHANGES WITH AIR VOID CHANGES WITH TIME. /AUTHOR/

Supplemental Notes:

Sponsored by Committee on Characteristics of Bituminous Materials and presented at the 50th 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.

Monograph Accession #:

01410282

Authors:

Gotolski, William H
Smith, Richard W
Roberts, James M

Pagination:

pp 46-61

Publication Date:

1971

Serial:

Highway Research Record

Issue Number: 350
Publisher: Highway Research Board

Conference:

50th Annual Meeting of the Highway Research Board

Location: Washington District of Columbia, United States
Date: 1971-1-18 to 1971-1-22
Sponsors: Highway Research Board. Task Force on Effect of Studded Tires

ISBN:

0309019621

Media Type:

Digital/other

Features:

Figures (11) ; References (14) ; Tables (4)

Uncontrolled Terms:

Change; Graphical analysis; Relationships

Old TRIS Terms:

Subject Areas:

Highways; Materials

Files:

TRIS, TRB

Created Date:

Oct 3 1971 12:00AM

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