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Title:

Analysis of Completed Monitoring Data for SPS-3 Experiment

Accession Number:

01337421

Record Type:

Component

Abstract:

The Specific Pavement Study-3 (SPS-3) of the Long Term Pavement Performance (LTPP) program continued for almost 20 years. The performance monitoring of maintenance treatments constructed as a part of the SPS-3 experiment, namely thin overlay, slurry seal, crack sealing, and chip seal has been ongoing since the experiment construction in 1990. In this study, the treatment life and structural contribution of the treatments in the SPS-3 experiment were assessed to determine ultimate performance. A survival analysis was first conducted to estimate the life expectancy of the treatments, and the results indicated that sections with good conditions always perform better than both fair and poor conditions for all treatments. Thin overlay performs best at high survival probability while chip seal performs best at low survival probability. The life expectancies for thin overlay, slurry seal, crack sealing, and chip seal were 10.0, 8.6, 7.4 and 10.8 years, respectively, at a 50% survival probability. A Friedman Test was then performed to assess whether the treatments have affected the structural stiffness of the pavements, measured as the deflection response to Falling Weight Deflection (FWD) testing. Results indicated that all treatments make a statistically significant contribution to the pavement structural capacity as compared with the control section, except for crack sealing. The thin overlay provides the greatest contribution, followed by slurry seal and chip seal treatments.

Monograph Accession #:

01329018

Report/Paper Numbers:

11-2516

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Morian, Dennis A
Wang, Guangming
Frith, Douglas
Reiter, Joe B

Pagination:

17p

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 (11) ; References (12) ; Tables (3)

Uncontrolled Terms:

Crack sealing; Performance monitoring

Subject Areas:

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

Source Data:

Transportation Research Board Annual Meeting 2011 Paper #11-2516

Files:

TRIS, TRB

Created Date:

Feb 17 2011 6:11PM