Unbound Materials Characterization for Pavement ME Implementation in Idaho

Mishra, Debakanta; Jibon, Md; Kassem, Emad; Bayomy, Fouad; Robinur, S. M; Chowdhury, Mohshin; Boise State University. Department of Civil Engineering; Oklahoma State University; University of Idaho

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Unbound Materials Characterization for Pavement ME Implementation in Idaho

2019-09-01
By Mishra, Debakanta ; Jibon, Md ; Kassem, Emad ; ...

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English

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Creators:

Mishra, Debakanta ; Jibon, Md ; Kassem, Emad ; Bayomy, Fouad ; Robinur, S. M ; ... More +

Mishra, Debakanta ; Jibon, Md ; Kassem, Emad ; Bayomy, Fouad ; Robinur, S. M ; Chowdhury, Mohshin Less -
Corporate Creators:

Boise State University. Department of Civil Engineering ; Oklahoma State University ; University of Idaho

Boise State University. Department of Civil Engineering ; Oklahoma State University ; University of Idaho Less -
Corporate Contributors:

Idaho. Transportation Department. Research Program ; United States. Department of Transportation. Federal Highway Administration

Idaho. Transportation Department. Research Program ; United States. Department of Transportation. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Aggregates Mechanistic-empirical Pavement Design Mechanistic Empirical Pavement Design Guide (MEPDG) Modulus Of Resilience Paving Materials Resilient Modulus, Subgrade (Pavements) Unbound Materials,
Publication/ Report Number:

FHWA-ID19-263
Resource Type:

Tech Report
Geographical Coverage:

Idaho ; United States

Idaho ; United States Less -
Edition:

Final Report 11/01/2016 - 04/30/2019
Corporate Publisher:

Idaho. Transportation Department
Abstract:

This research study focused on laboratory testing of typical subgrade soils and unbound aggregates used in pavement applications across the state of Idaho. A total of eighteen (18) aggregates and sixteen (16) subgrade soils were tested in the laboratory to support ITD’s efforts towards statewide implementation of Mechanistic-Empirical (M-E) pavement design practices. Standard soil and aggregate tests were performed in the laboratory along with repeated load triaxial testing for resilient modulus characterization. The research team attempted to develop statistically significant correlations to predict soil and aggregate resilient modulus values from easy-to-establish index and/or mechanical properties; this would ITD avoid the cumbersome and resource-intensive resilient modulus test. Although aggregate base/subbase modulus values could be predicted from index properties with reasonable accuracy, no acceptable correlation could be developed for the subgrade soils. A database with all laboratory-established soil/aggregate properties was developed as a project deliverable; it can be used as a source for unbound material input properties required by AASHTOWare Pavement ME Design. Although it was not possible to develop unique correlation equations to predict soil and aggregate resilient modulus values from index properties, the developed database will significantly enhance the confidence level associated with unbound material input properties during pavement design in Idaho. When direct laboratory testing data is not available, ITD engineers are recommended to use this database to obtain unbound material input properties rather than relying on nation-wide or regional default values.
Format:

PDF
Funding:

BSU-17-01
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:b29827f41917c678d82ae19390be917ddb2dbdbc931b467de14941e18b40c7ea
Download URL:

https://rosap.ntl.bts.gov/view/dot/63577/dot_63577_DS1.pdf
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Unbound Materials Characterization for Pavement ME Implementation in Idaho

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