Deflection and Elastic Modulus Assessment of Subgrade in Flexible Pavement mixed with Waste Tire Scrap Material

This study aims to assess the deflection and elastic modulus (Es) of subgrade in flexible pavements, focusing on a comparative analysis between pavements with clayey soil subgrade and subgrade modified with tire scrap. The research utilized Falling Weight Deflectometer (FWD) for measuring subgrade d...

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Main Authors: Sujoy Sarkar, Sumit Kumar Biswas, Saibal Chakraborty
Format: Article
Language:English
Published: D. G. Pylarinos 2024-04-01
Series:Engineering, Technology & Applied Science Research
Subjects:
Online Access:https://etasr.com/index.php/ETASR/article/view/6858
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author Sujoy Sarkar
Sumit Kumar Biswas
Saibal Chakraborty
author_facet Sujoy Sarkar
Sumit Kumar Biswas
Saibal Chakraborty
author_sort Sujoy Sarkar
collection DOAJ
description This study aims to assess the deflection and elastic modulus (Es) of subgrade in flexible pavements, focusing on a comparative analysis between pavements with clayey soil subgrade and subgrade modified with tire scrap. The research utilized Falling Weight Deflectometer (FWD) for measuring subgrade deflection, essential in evaluating pavement performance. The FWD applied a dynamic load to the pavement, with deflection measurements processed using the KGP-BACK software to calculate the Es of the pavement subgrade. This approach included assessing the Lower Layer Index (LLI) and Es of the subgrade. Findings revealed a notable reduction of 37.5% in deflection and 2.68 times increase in Es for the tire scrap modified subgrade pavement compared to the standard clayey soil subgrade pavement. These results demonstrate significant enhancements in pavement structure, underlining the potential of recycled materials in sustainable civil engineering practices.
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spelling doaj.art-85d6cf23d2d24615b95ac4055ba66a3c2024-04-03T06:14:15ZengD. G. PylarinosEngineering, Technology & Applied Science Research2241-44871792-80362024-04-0114210.48084/etasr.6858Deflection and Elastic Modulus Assessment of Subgrade in Flexible Pavement mixed with Waste Tire Scrap MaterialSujoy Sarkar0Sumit Kumar Biswas1Saibal Chakraborty2Department of Civil Engineering, Jadavpur University, IndiaDepartment of Civil Engineering, Jadavpur University, IndiaDepartment of Civil Engineering, Jnan Chandra Ghosh Polytechnic, IndiaThis study aims to assess the deflection and elastic modulus (Es) of subgrade in flexible pavements, focusing on a comparative analysis between pavements with clayey soil subgrade and subgrade modified with tire scrap. The research utilized Falling Weight Deflectometer (FWD) for measuring subgrade deflection, essential in evaluating pavement performance. The FWD applied a dynamic load to the pavement, with deflection measurements processed using the KGP-BACK software to calculate the Es of the pavement subgrade. This approach included assessing the Lower Layer Index (LLI) and Es of the subgrade. Findings revealed a notable reduction of 37.5% in deflection and 2.68 times increase in Es for the tire scrap modified subgrade pavement compared to the standard clayey soil subgrade pavement. These results demonstrate significant enhancements in pavement structure, underlining the potential of recycled materials in sustainable civil engineering practices. https://etasr.com/index.php/ETASR/article/view/6858deflectionelastic modulusfalling weight deflectometersubgrade
spellingShingle Sujoy Sarkar
Sumit Kumar Biswas
Saibal Chakraborty
Deflection and Elastic Modulus Assessment of Subgrade in Flexible Pavement mixed with Waste Tire Scrap Material
Engineering, Technology & Applied Science Research
deflection
elastic modulus
falling weight deflectometer
subgrade
title Deflection and Elastic Modulus Assessment of Subgrade in Flexible Pavement mixed with Waste Tire Scrap Material
title_full Deflection and Elastic Modulus Assessment of Subgrade in Flexible Pavement mixed with Waste Tire Scrap Material
title_fullStr Deflection and Elastic Modulus Assessment of Subgrade in Flexible Pavement mixed with Waste Tire Scrap Material
title_full_unstemmed Deflection and Elastic Modulus Assessment of Subgrade in Flexible Pavement mixed with Waste Tire Scrap Material
title_short Deflection and Elastic Modulus Assessment of Subgrade in Flexible Pavement mixed with Waste Tire Scrap Material
title_sort deflection and elastic modulus assessment of subgrade in flexible pavement mixed with waste tire scrap material
topic deflection
elastic modulus
falling weight deflectometer
subgrade
url https://etasr.com/index.php/ETASR/article/view/6858
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AT sumitkumarbiswas deflectionandelasticmodulusassessmentofsubgradeinflexiblepavementmixedwithwastetirescrapmaterial
AT saibalchakraborty deflectionandelasticmodulusassessmentofsubgradeinflexiblepavementmixedwithwastetirescrapmaterial