Assessing Performance of Geosynthetic Reinforced Pavement with a Large-Scale Tracking Wheel Test and Dynamic Cone Penetrometer

Eun, Jongwan; Kim, Seunghee; Song, Chung R.; Zhu, Jinying; Robertson, Daniel; Alhowaidi, Yusuf; Van, Hung; Ibdah, Laith; Owusu, Kenaz; University of Nebraska

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Assessing Performance of Geosynthetic Reinforced Pavement with a Large-Scale Tracking Wheel Test and Dynamic Cone Penetrometer

2024-02-01
By Eun, Jongwan ; Kim, Seunghee ; Song, Chung R. ; ...

[PDF-4.56 MB]

English

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Creators:

Eun, Jongwan ; Kim, Seunghee ; Song, Chung R. ; Zhu, Jinying ; Robertson, Daniel ; ... More +

Eun, Jongwan ; Kim, Seunghee ; Song, Chung R. ; Zhu, Jinying ; Robertson, Daniel ; Alhowaidi, Yusuf ; Van, Hung ; Ibdah, Laith ; Owusu, Kenaz Less -
Corporate Creators:

University of Nebraska
Corporate Contributors:

University of Nebraska. Mid-America Transportation Center ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology ; United States. Department of Transportation. University Transportation Centers (UTC) Program

University of Nebraska. Mid-America Transportation Center ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology ; United States. Department of Transportation. University Transportation Centers (UTC) Program Less -
Subject/TRT Terms:

[+]

Cone Penetrometers Direct Shear Test Direct Shear Tests Dynamic Cone Penetrometer Test Geosynthetics Large-scale Numerical Control Numerical Modeling Pull Out Test Pullout Test, Reinforced Concrete Pavements Subgrade (Pavements) Tracking Wheel Wheels
Publication/ Report Number:

25-1121-0005-004-45
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final Report
Corporate Publisher:

University of Nebraska-Lincoln. Mid-America Transportation Center
Abstract:

This study presents an evaluation of geosynthetic reinforced pavements using the Large-Scale Tracking Wheel (LSTW) Test. The performance of geosynthetic reinforced pavement layer was assessed under rolling wheel loading which replicates the real-world traffic loading scenario. The parameters assessed included the permanent deformation (rutting), strength/stiffness change and pressure reduction effects at the pavement layer interface. Results from this research indicated that geosynthetic placed at the interface of the subgrade/base layer led to improvement in pavement strength/stiffness, as observed through the Dynamic Cone Penetrometer (DCP) Index and Resilient Modulus Results. A reduction in permanent deformation, commonly known as rutting was obtained for the geosynthetic reinforced case as well. Additionally, the pressure exerted on the subgrade layer also reduced with the application of geosynthetics between the subgrade/base layers. This notable reduction in pressure on the subgrade highlights the crucial role of geosynthetic reinforcement in distributing loads more evenly within the pavement structure, thereby enhancing its longevity and durability. Employing numerical modeling with parameters obtained from laboratory tests, simulations of practical pavement layers were conducted for different scenarios involving different geosynthetic types and positions. Results of these simulations showed a reduction in settlement and vertical stress for geosynthetic reinforced cases as compared with unreinforced cases. These simulations affirmed the findings of the largescale tests as well.
Format:

PDF
Funding:

69A3551747107
Collection(s):

University Transportation Centers
Main Document Checksum:

[+]

urn:sha-512:ebae0265354cb44bce41788bc4eb3ee15142696673b497b7d507fa016440383e3ccafef06d53a01b045991d055da84cb3d0d63aa45210133533a7b75bf6d1d36
Download URL:

https://rosap.ntl.bts.gov/view/dot/77832/dot_77832_DS1.pdf
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Assessing Performance of Geosynthetic Reinforced Pavement with a Large-Scale Tracking Wheel Test and Dynamic Cone Penetrometer

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