Resilient Modulus at the Limits of Gradation and Varying Degrees of Saturation

Hodek, Ralph J.{44756}; Mayrberger, Torsten; Michigan Technological University. Dept. of Civil and Environmental Engineering

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Resilient Modulus at the Limits of Gradation and Varying Degrees of Saturation

2007-11-28
By Hodek, Ralph J.{44756} ; Mayrberger, Torsten

[PDF-1.98 MB]

English

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Creators:

Hodek, Ralph J.{44756} ; Mayrberger, Torsten

Hodek, Ralph J.{44756} ; Mayrberger, Torsten Less -
Corporate Creators:

Michigan Technological University. Dept. of Civil and Environmental Engineering
Corporate Contributors:

Michigan. Dept. of Transportation. Construction and Technology Division ; Michigan Tech Transportation Institute

Michigan. Dept. of Transportation. Construction and Technology Division ; Michigan Tech Transportation Institute Less -
Subject/TRT Terms:

[+]

Aggregate Gradation Base Course (Pavements) Granular Materials Highways I36: Aggregates Materials Modulus Of Resilience Moisture Content Percent Saturation Quality Control Stiffness
Publication/ Report Number:

RC -1497
Resource Type:

Tech Report
Geographical Coverage:

Michigan ; United States

Michigan ; United States Less -
TRIS Online Accession Number:

01115029
Edition:

Final Report
Corporate Publisher:

Michigan. Dept. of Transportation. Construction and Technology Division
Abstract:

This report details a laboratory study which was intended to evaluate the 4G aggregate specification as a quality control specification. The study variables were the gradation, the material, and the moisture condition. The characteristic to be controlled was the stiffness, and the stiffness of each compacted unbound granular material was measured by the resilient modulus. Findings showed that the stiffness is dependent on material type. As a generalization, natural gravel is always softest, dolomite and slag behave similarly and are stiffest, and crushed concrete occupies an intermediate position. The stiffness is also dependent upon the ratio of fine to coarse aggregate within the specification. As the ratio increases, the material’s compacted stiffness decreases. Significant stiffness differences occur within the limits of the 4G specification band; stiffnesses could vary by up to 50%. For every material type it was also observed that the effect of moisture content increases as the ratio of fine to coarse fraction increases. An increase in moisture content was shown to decrease stiffness.
Format:

PDF
Funding:

03-0063
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:0a4cefb17bf11b6991873979139dd93d4be47320598bd25dc7003371bd7d9f74
Download URL:

https://rosap.ntl.bts.gov/view/dot/37976/dot_37976_DS1.pdf
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Resilient Modulus at the Limits of Gradation and Varying Degrees of Saturation

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