Thickness Design for Cement-Treated Base Pavements

Thompson, Marshall

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https://hdl.handle.net/2142/123232 Copy

Description

Title

Thickness Design for Cement-Treated Base Pavements

Author(s)

Thompson, Marshall

Issue Date

2024-06

Keyword(s)

• Cement-Treated Base
• Pavement Design
• Soil Cement
• Full-Depth Reclamation with Cement

Abstract

This project developed a cement-treated base (CTB) thickness design procedure for the Illinois Department of Transportation based on CTB fatigue (stress ratio criterion). The researcher developed a comprehensive ILLI-PAVE database for a range of thickness design inputs (7-day compressive strength, CTB thickness, and subgrade modulus). A CTB flexural stress algorithm was derived from the comprehensive ILLI-PAVE database. Minimum CTB thicknesses for IDOT Class III and Class IV pavements were established, and the results were presented in tabular form. Falling weight deflectometer testing and project site reviews of several existing typical CTB projects indicated CTB compressive strengths are significant (average of 750 psi), and the projects are performing well. As expected, transverse shrinkage cracks have occurred in the projects.

Publisher

Illinois Center for Transportation/Illinois Department of Transportation

Has Part

• https://doi.org/10.36501/0197-9191/24-015
• ISSN: 0197-9191

Series/Report Name or Number

FHWA-ICT-24-013

Type of Resource

text

Language

eng

Sponsor(s)/Grant Number(s)

IDOT-R27-235

Copyright and License Information

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

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