Performance Evaluation of Stabilized Support Layers for Concrete Pavements

DeSantis, John; Roesler, Jeffery

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https://hdl.handle.net/2142/113442 Copy

Description

Title

Performance Evaluation of Stabilized Support Layers for Concrete Pavements

Author(s)

• DeSantis, John
• Roesler, Jeffery

Issue Date

2022-02

Keyword(s)

• Concrete Pavements
• Jointed Plain Concrete Pavements
• Falling Weight Deflectometer
• MIRA
• Hamburg Wheel-tracking Device

Abstract

A research investigation was conducted on the erosion potential of stabilized subbases under concrete pavements and asphalt layers supporting concrete overlays. Through field surveys and testing in Illinois, this project evaluated if existing concrete pavements with stabilized subbases and concrete overlays were exhibiting potential erosion of the underlying support layer. The field evaluation testing included falling weight deflectometer testing, distress surveys, coring, and ultrasonic tomography scanning. A laboratory performance test was also established using the Hamburg wheel-tracking device to assess the erodibility of the various stabilized subbase layers for new construction and existing asphalt layers available for a concrete overlay. The analyzed field test results were coupled together with the laboratory performance testing to provide recommendations for updating the Illinois Department of Transportation’s “Bureau of Design and Environment Manual” guidance. No changes were recommended for hot-mix asphalt stabilized subbases, but testing using the Hamburg wheel-tracking device should be considered for Portland cement concrete stabilized support layers (e.g., CAM II) under concrete pavements. For testing of asphalt support layers for concrete pavement overlays, the Hamburg wheel-tracking device is recommended with performance criteria similar to flexible pavements for appropriate functional classes.

Publisher

Illinois Center for Transportation/Illinois Department of Transportation

Series/Report Name or Number

FHWA-ICT-22-003

ISSN

0197-9191

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/113442

DOI

https://doi.org/10.36501/0197-9191/22-003

Sponsor(s)/Grant Number(s)

IDOT-R27-193-6

Copyright and License Information

No restrictions. This document is available through the National Technical Information Service, Springfield, VA 22161.

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