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Title:

STATISTICAL MODEL OF PAVEMENT RUTTING IN ASPHALT CONCRETE MIXES

Accession Number:

00821028

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

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Order URL: http://worldcat.org/isbn/0309072255

Abstract:

Pavement deterioration models are important inputs for the efficient management of pavement systems, the allocation of cost responsibilities to various vehicle classes for their use of the highway system, and the design of pavement structures. The development of an empirical rutting progression model with an experimental data set from WesTrack is described. The salient features of the model specification are as follows: (a) three properties of the mix are sufficient to model the performance of the asphalt concrete pavement at WesTrack accurately; (b) the model captures the effects of the high air temperatures at WesTrack; and (c) the model predicts rut depths by adding predicted values of the increment of rut depth for each time period, which is particularly advantageous in a pavement management context. The three mix properties are a gradation index, which is obtained from the aggregate gradation; the voids filled with asphalt obtained for the construction mix in the Superpave gyratory compactor; and the initial in-place air voids. The specified model is nonlinear in the variables and the parameters and is estimated by using a random-effects specification to account for unobserved heterogeneity. The estimation results and prediction tests show that the model replicates the observed pavement behavior at WesTrack well.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1764, Assessing and Evaluating Pavements.

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Archilla, A R
Madanat, S

Pagination:

p. 70-77

Publication Date:

2001

Serial:

Transportation Research Record

Issue Number: 1764
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309072255

Features:

Figures (6) ; References (8) ; Tables (2)

Uncontrolled Terms:

Subject Areas:

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

Files:

TRIS, TRB, ATRI

Created Date:

Dec 17 2001 12:00AM

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