Fatigue Failure Testing in Section F

Shannon Beranek; Carpenter, Samuel H.

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https://hdl.handle.net/2142/45970 Copy

Description

Title

Fatigue Failure Testing in Section F

Author(s)

• Shannon Beranek
• Carpenter, Samuel H.

Issue Date

2009-11

Keyword(s)

Hot Mix Asphalt, perpetual pvements, fatigue-resistant asphalt, fatigue cracking

Abstract

Project IHR-R39, titled “Validation of Design Concepts for Extended Life Hot Mix Asphalt Pavements (ELHMAP), was funded by the Illinois Department of Transportation (IDOT) to develop data in support of the philosophy of design and performance of the newly proposed concept of Perpetual Pavements (PP). The concept of a PP was to have a rut-resistant surface, a fatigue-resistant asphalt rich lower layer, and sufficient total thickness to eliminate the development of fatigue cracking. The total thickness would produce a tensile strain at the bottom of the asphalt layers that would be below 70 micro strain during the hottest period of the year. A major part of the testing was directed toward developing updated laboratory fatigue algorithms for current IDOT mixtures. The full scale test sections included a six inch thick section constructed for testing to fatigue failure. This testing was designed to illustrate the degree of conservatism involved in using the laboratory design fatigue algorithms relative to actual testing in the field. This report describes the testing and results that support the concept of healing, rest periods between wheel loads, in extending the fatigue life in the field relative to the laboratory predictions. The testing reported here supports a life extension ranging from 10 to 20 based on field crack development.

Series/Report Name or Number

ICT-09-058 UILU-ENG-2009-2040

ISSN

0197-9191

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/45970

Sponsor(s)/Grant Number(s)

ICT R39

Copyright and License Information

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

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