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Title:

STUDY OF THE EFFECTIVENESS OF STYRENE-BUTADIENE RUBBER LATEX IN HOT MIX ASPHALT MIXES

Accession Number:

00625145

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/030905205X

Abstract:

Many benefits are attributed to the use of styrene-butadiene rubber (SBR) latex in asphalt concrete pavements. These include decreased temperature susceptibility, increased rut resistance, and increased resistance to stripping. Potential benefits of SBR latex in hot mix asphalt mixtures were evaluated, and the results of the first 1 1/2 years of a 5-year study are reported. Six existing test sites were identified and selected for evaluation. The test sites were located throughout Alabama, and each contained a control mixture and SBR latex modified mixture. Condition surveys were performed at each site to compare performance parameters such as rutting, transverse cracking, raveling, and bleeding. The Alabama Highway Department's pavement management data base provided additional data. The data base was investigated to compare performance of pavements with the department's 416 (control) and 417 (SBR latex modified) surface mixes. The parameters analyzed included mean (rut depth/sqrt ESAL), present serviceability index, friction number, condition rating, and transverse cracking. On the basis of preliminary results, no significant long term benefits can be attributed to the use of SBR latex in dense graded asphalt mixtures. However, further testing is required to verify the results.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1342, Asphalt and Asphalt Additives. 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 #:

01404979

Language:

English

Authors:

Brown, E R
Parker Jr, Frazier
Smith, Michael R

Pagination:

p. 85-91

Publication Date:

1992

Serial:

Transportation Research Record

Issue Number: 1342
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

030905205X

Features:

Figures (1) ; References (8) ; Tables (9)

Uncontrolled Terms:

Effectiveness; Serviceability Index

Subject Areas:

Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials

Files:

TRIS, TRB, ATRI

Created Date:

Oct 20 1993 12:00AM

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