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Title:

PERFORMANCE-BASED FRACTURE CRITERION FOR EVALUATION OF MOISTURE SUSCEPTIBILITY IN HOT-MIX ASPHALT

Accession Number:

00984561

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States
Order URL: http://www.trb.org/Main/Public/Blurbs/155487.aspx

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Order URL: http://worldcat.org/isbn/0309094852

Abstract:

The laboratory testing procedures currently available for testing hot-mix asphalt moisture susceptibility all evaluate the effects of moisture damage in the laboratory by measuring the relative change of a single parameter before and after conditioning (i.e., tensile strength ratio, resilient modulus ratio). The use of a single parameter to evaluate moisture damage must be questioned. Instead, a single unified framework that accounts for changes in key mixture properties is needed to evaluate the effects of moisture damage in mixtures effectively. The use of a new performance-based fracture parameter, the energy ratio (ER), for quantifying the effects of moisture damage on the fracture resistance of mixtures is evaluated here. ER is used to determine the effects of moisture damage on changes in the fracture resistance of six granite mixtures prepared with and without the use of an antistripping additive. The granite aggregate used is a known stripping aggregate. In addition, one limestone mixture with a known high resistance to stripping was used. The results indicate that not only is the ER capable of detecting the effects of moisture damage on the fracture resistance of mixtures, it is also shown to detect the presence of antistripping agents in mixtures. Results indicate that the ER may form the basis of a promising combined performance-based fracture criterion for evaluating the effects of moisture damage in mixtures as well as the overall resistance to fracture.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1891, Bituminous Paving Mixtures 2004.

Monograph Accession #:

00984553

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Birgisson, B
Roque, R
Page, G C

Pagination:

p. 55-61

Publication Date:

2004

Serial:

Transportation Research Record

Issue Number: 1891
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309094852

Features:

Figures (7) ; References (19) ; Tables (4)

Uncontrolled Terms:

Subject Areas:

Highways; Materials; I31: Bituminous Binders and Materials

Files:

TRIS, TRB, ATRI

Created Date:

Jan 14 2005 12:00AM

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