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Title:

Evaluation of Influence Factors to Crack Initiation of LTPP Resurfaced Asphalt Pavements Using Parametric Survival Analysis

Accession Number:

01337162

Record Type:

Component

Abstract:

Survival model with Weibull hazard function was employed to evaluate the influence of different factors on the crack initiation of resurfaced asphalt pavement. Data from SPS-5 experiments of Long Term Pavement Performance (LTPP) program were used to conduct the analysis. The initiation time of four types of cracks including the alligator (fatigue) crack, longitudinal crack on wheel path, non-wheel path longitudinal crack and transverse crack were evaluated. Analyzed factors include overlay thickness, traffic volume, freeze index, mixture (using RAP or virgin) and mill (or no mill) before overlay. It was found that traffic level was a significant factor for all of the four types of cracks. High traffic level accelerated the initiation of cracking. Thick overlay delayed the initiation of cracking except for the non-wheel path longitudinal crack, which is mainly caused by poor construction. Severe freeze thaw conduction accelerated the occurrence of the non-wheel path longitudinal and transverse cracks; whereas, mill before overlay significantly retarded the occurrence of the two types of cracking. Incorporating 30% recycled asphalt material in the overlay accelerated the initiation of longitudinal crack on wheel path, but did not influence the initiation of other three types of cracking.

Supplemental Notes:

The DVD lists the title of this paper as: Evaluation of Influence Factors on Crack Initiation of Long-Term Pavement Performance Resurfaced Asphalt Pavements Using Parametric Survival Analysis.

Monograph Accession #:

01329018

Report/Paper Numbers:

11-2723

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Dong, Qiao
Huang, Baoshan

Pagination:

16p

Publication Date:

2011

Conference:

Transportation Research Board 90th Annual Meeting

Location: Washington DC, United States
Date: 2011-1-23 to 2011-1-27
Sponsors: Transportation Research Board

Media Type:

DVD

Features:

Figures; Photos; References (16) ; Tables (3)

Subject Areas:

Highways; Maintenance and Preservation; Pavements; I61: Equipment and Maintenance Methods

Source Data:

Transportation Research Board Annual Meeting 2011 Paper #11-2723

Files:

TRIS, TRB

Created Date:

Feb 17 2011 6:16PM