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Title:

QUANTITATIVE DETERMINATION OF POLYMERS IN ASPHALT CEMENTS AND HOT-MIX ASPHALT MIXES

Accession Number:

00714793

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/issn/03611981

Abstract:

The addition of polymers in asphalt cement has been widespread. Quantitative analysis of these polymers is essential to verify if specifications are being met. The analysis of two styrene butadiene rubber (SBR) latexes and ethylene vinyl acetate (EVA) and styrene butadiene styrene (SBS) polymers in three different asphalts was accomplished by Fourier transform infrared (FTIR) spectroscopy. Although the behavior of each SBR latex in each asphalt yielded somewhat different calibration curves, each latex-modified asphalt cement was successfully quantified. The values for latex determined by FTIR spectroscopy yielded a more linear relationship between the dynamic shear measurements and the latex concentration than the nominal values that accompanied the mixtures. Both EVA and SBS polymers were also quantified by using the analysis that was developed for the SBR latex-modified asphalt. The infrared analysis of SBR latex in asphalt was directly applied to the analysis of SBR latex in asphalt-aggregate mixes. Analysis of 3 weight percent SBR latex in asphalt concrete samples was achieved by removing the SBR latex-modified asphalt from aggregates and analyzing the latex content by FTIR spectroscopy. Three different aggregate types, gravel, granite, and limestone, were used.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1488, Unmodified and Modified Asphalt Binders. 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 #:

01399832

Language:

English

Authors:

Curtis, Christine W
Hanson, Douglas I
Chen, Shou Ta
Shieh, Guei-Jen
Ling, Mei

Pagination:

p. 52-61

Publication Date:

1995

Serial:

Transportation Research Record

Issue Number: 1488
Publisher: Transportation Research Board
ISSN: 0361-1981

Features:

Figures (6) ; References (13) ; Tables (3)

Subject Areas:

Highways; Materials; I31: Bituminous Binders and Materials

Files:

TRIS, TRB, ATRI

Created Date:

Nov 29 1995 12:00AM

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