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Title:

ADSORPTION OF ASPHALT AND ASPHALT FUNCTIONALITIES ONTO AGGREGATES PRECOATED WITH ANTISTRIPPING AGENTS

Accession Number:

00602682

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309050502

Abstract:

The adsorption behavior of asphalt and functionalities representative of those present in asphalt on aggregates precoated with antistripping agents was investigated. The amount of adsorption obtained was compared with that of uncoated aggregate. The aggregates used were a high-surface-area synthetic silica and low-surface-area actual siliceous aggregates; Warrior River sand from Alabama; and greywacke from California. The aggregates were precoated with commercial polyamine antistripping agents. The acidic functionalities benzoic acid and phenol demonstrated enhanced adsorption with the antistripping agent precoating, whereas the nonacidic functionalities phenylsulfoxide, benzylbenzoate, benzophenone, quinoline, and pyrene did not. The adsorption of AC-20 asphalt onto precoated silica and Warrior River sand showed decreased adsorption compared to that on the uncoated aggregate. The adsorption of AC-10 on precoated greywacke also showed decreased adsorption compared to uncoated greywacke. The ranking of the AC-20 adsorption on different uncoated aggregates when aggregate surface area was taken into account was Warrior River sand > silica > greywacke. Likewise, AC-20 adsorbed more on precoated Warrier River sand than on precoated silica. Desorption of AC-20 asphalt from precoated silica using distilled water appeared to be less than that from uncoated silica.

Supplemental Notes:

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

Monograph Accession #:

01407214

Authors:

Curtis, Christine W
Baik, Jeonghyeon
Jeon, Young W

Pagination:

p. 48-55

Publication Date:

1990

Serial:

Transportation Research Record

Issue Number: 1269
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309050502

Features:

Figures (6) ; References (13) ; Tables (2)

Old TRIS Terms:

Subject Areas:

Highways; Materials; I31: Bituminous Binders and Materials

Files:

TRIS, TRB, ATRI

Created Date:

Dec 31 1990 12:00AM

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