Resilient Modulus of Select Aggregate Bases and Their Correlations with Other Engineering Properties

Laguros, Joakim G.; Zaman, Musharraf; Chen, Dar-Hao

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Resilient Modulus of Select Aggregate Bases and Their Correlations with Other Engineering Properties

1993-09-01
By Laguros, Joakim G. ; Zaman, Musharraf ; Chen, Dar-Hao

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English

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Creators:

Laguros, Joakim G. ; Zaman, Musharraf ; Chen, Dar-Hao
Corporate Creators:

University of Oklahoma. School of Civil Engineering and Environmental Science
Corporate Contributors:

Oklahoma. Department of Transportation. Research & Development Division ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Aggregate Gradation Aggregates California Bearing Ratio Cohesion Compaction Correlation Analysis Dynamic Loads Friction Mechanical Elasticity Modulus Of Resilience Moisture Content Pavement Base Course Size
Publication/ Report Number:

FHWA/OK 93(06), ORA 125-6073
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

Oklahoma. Department of Transportation
Abstract:

Six most commonly encountered aggregate materials which are used as subbases/bases in Oklahoma are selected and tested under dynamic loading by using AASHTO designation T292-91I. A vibratory compaction method was successfully developed to prepare the 6-in.-diameter and 12-in.-long specimen at optimum moisture content. The gradation of the specimens met the Oklahoma Department of Transportation (ODOT) 1988 specification Type A and Type B. Exploratory tests were carried out to assess the effect of varying gradations, compaction method, moisture content, specimen size, and testing procedures on the resilient modulus (RM). Statistical correlations were established between the RM and California bearing ratio (CBR), between the RM and cohesion and friction angle, and between the RM and elasticity (E). For a given gradation, the RM values of the six aggregate types at the same bulk stress are relatively close; the influence of gradation and compaction method on RM values were less significant compared to the effects of moisture content and the stress state; the T294-92I testing procedure gave higher RM values than those obtained by using the T292-91I testing procedure; the RM values for 4-in. specimens were higher than those for 6-in. specimens; and the best correlations exist between the cohesion and friction angle and the RM values.
Format:

PDF
Funding:

2189
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:9c2838c197725f2dfaed63db429836be3f785a9106881677fb0a5a4823ae64cc97976bce4a7de055934d8b3cdc98bf4f346b000e9c71b1f0f37406f65ef88748
Download URL:

https://rosap.ntl.bts.gov/view/dot/89193/dot_89193_DS1.pdf
File Type:

[PDF - 22.09 MB ]

File Language:

English

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