Evaluation of Geosynthetic-Reinforced Flexible Pavements using Static Plate Load Tests

McCartney, John S.; Cox, Brady R.; Wood, Clinton M.; Curry, Brandon; University of Arkansas, Fayetteville; University of Colorado (System)

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ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.

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Evaluation of Geosynthetic-Reinforced Flexible Pavements using Static Plate Load Tests

2010-01-01
By McCartney, John S. ; Cox, Brady R. ; Wood, Clinton M. ; ...

English

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Details:

Creators:

McCartney, John S. ; Cox, Brady R. ; Wood, Clinton M. ; Curry, Brandon

McCartney, John S. ; Cox, Brady R. ; Wood, Clinton M. ; Curry, Brandon Less -
Corporate Creators:

University of Arkansas, Fayetteville ; University of Colorado (System)

University of Arkansas, Fayetteville ; University of Colorado (System) Less -
Subject/TRT Terms:

[+]

Admixtures Asphalt Pavements Design Fiber Reinforced Concrete Flexible Pavements Geogrids Geosynthetics Geotechnology Geotextiles Highways I22: Design Of Pavements I23: Properties Of Road Surfaces Pavement Reinforcement Pavements Plate Bearing Test Plate Load Test Railways And Guideways Reinforced Concrete Pavements Research Hub
Publication/ Report Number:

FHWA/MT-02-008/20040,
Resource Type:

Tech Report
Geographical Coverage:

Colorado ; United States

Colorado ; United States Less -
TRIS Online Accession Number:

00962882
Edition:

Final Report August 17, 1999 – November 30, 2002
Corporate Publisher:

University of Colorado Boulder
Abstract:

This study focuses on the response of full-scale geogrid-reinforced flexible pavements to static surface loading. Specifically, static plate load (SPL) tests were performed on a low-volume, asphalt pavement frontage road in Eastern Arkansas, USA (the Marked Tree Site). This site is among the most unique geosynthetic-reinforced pavement research sites in the USA, consisting of sixteen 15 m-long sections including different geosynthetic types, two base course thicknesses, and control sections. Maximum deflections under a maximum static surface stress of 540 kPa ranged from 2.5 to 4 mm. At least four unload-reload curves were obtained for each section to dampen the effects of the visco-elastic response of the asphalt surface layer on the system stiffness. The range in tangent stiffness obtained from the third reload cycle for the pavement sections ranged from 495 to 905 kPa/mm during the winter (dry season), and 452 to 725 kPa/mm during the late spring (wet season). A smaller decrease in stiffness from the wet season to the dry season was noted for the reinforced sections. The trends in the stiffness values indicate logical trends with reinforcement type and base course thickness, indicating that the SPL test is suitable for global characterization of the geosynthetic reinforced sections. Three-layer elastic analyses using moduli determined using Spectral Analysis of Surface Waves (SASW) were found to be useful in quantifying the impact of geosynthetic reinforcement on the surface settlement. Although predicted elastic settlements were greater than measured settlements, the trends were similar. The Poisson’s ratios of the base course layers in each section (incorporating the geosynthetic reinforcement as a composite) were found to be a useful parameter to account for the effect of geosynthetic reinforcement on the base lateral confinement.
Format:

PDF
Funding:

2010-91CG
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:f1f731b9e6307df8635fd58d4b85b16e53ac31936c25026c726443d2d8273f07
Download URL:

https://rosap.ntl.bts.gov/view/dot/34450/dot_34450_DS1.pdf
File Type:

[PDF-234.88 KB]