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Title:

Quantification of Benefits of Subsurface Drainage on Pavement Performance in Indiana
Cover of Quantification of Benefits of Subsurface Drainage on Pavement Performance in Indiana

Accession Number:

01550208

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

The objective of this research was to evaluate pavement subsurface drainage performance and its cost benefit in Indiana. This study presents a comprehensive pavement performance evaluation to determine the effectiveness of subsurface drainage in a few aspects: lab testing of subgrade materials due to the moisture variation, pavement distress field survey, outlet spacing and maintenance inspection, and annual monitoring and evaluation of pavement performance. The subgrade materials investigated are A-4, A-6, and A-7-6 soils commonly found in Indiana. It was observed that with an increase of 2% in optimum moisture content (OMC), the resilient modulus decreases as much as four times. The field survey showed that the distress in drained pavement had relative low severity and there was less distress than that of the undrained pavement. However, the benefit of a drainage layer may not be evident for all sites of investigated pavement because of incorrect maintenance and construction. An annual in situ monitoring program was initiated to determine the effects of subsurface drainage on the performance of asphalt and concrete pavements. The in situ pavement structural performance was evaluated using Falling Weight Deflectometer (FWD) testing and backcalculation. The pavement functional performance was evaluated using a profiler. Based on the annual monitoring data, the researchers found that the drainage layer appears to positively impact the structural and functional performance of pavement. Cost benefit analysis was performed to determine the benefits of subsurface drainage on initial construction costs.

Supplemental Notes:

This paper was sponsored by TRB committee AFS60 Subsurface Drainage. Alternate title: Quantification of Benefits of Subsurface Drainage on Pavement Performances in Indiana.

Monograph Accession #:

01550057

Report/Paper Numbers:

15-3206

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Ji, Richard
Nantung, Tommy

Pagination:

22p

Publication Date:

2015

Conference:

Transportation Research Board 94th Annual Meeting

Location: Washington DC, United States
Date: 2015-1-11 to 2015-1-15
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; Maps; Photos; References; Tables

Geographic Terms:

Indiana

Subject Areas:

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways

Source Data:

Transportation Research Board Annual Meeting 2015 Paper #15-3206

Files:

PRP, TRIS, TRB, ATRI

Created Date:

Dec 30 2014 1:04PM