Characterization of the Geotechnical Properties of Expansive Soil Improved by Sludge Waste

Recently, a great rise in the population and fast manufacturing processes were noticed. These processes release significant magnitudes of waste. These wastes occupied a notable ground region, generating big issues for the earth and the environment. To enhance the geotechnical properties of fine-gra...

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Main Authors: Soran Jabbar Hama Salih, Nihad Bahaadin Salih, Zozk Kawa Abdalqadir
Format: Article
Language:English
Published: University of Baghdad 2023-09-01
Series:Journal of Engineering
Subjects:
Online Access:https://joe.uobaghdad.edu.iq/index.php/main/article/view/1867
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author Soran Jabbar Hama Salih
Nihad Bahaadin Salih
Zozk Kawa Abdalqadir
author_facet Soran Jabbar Hama Salih
Nihad Bahaadin Salih
Zozk Kawa Abdalqadir
author_sort Soran Jabbar Hama Salih
collection DOAJ
description Recently, a great rise in the population and fast manufacturing processes were noticed. These processes release significant magnitudes of waste. These wastes occupied a notable ground region, generating big issues for the earth and the environment. To enhance the geotechnical properties of fine-grained soil, a sequence of research projects in the lab were conducted to analyze the impacts of adding sludge waste (SW). The tests were done on both natural and mixed soil with SW at various proportions (2%, 4%, 6%, 8%, and 10%) based on the dry mass of the soil used. The experiments conducted focused on consistency, compaction, and shear strength. With the addition of 10% of SW, the values of LL and PI decreased by 29.7% and 38.5%, respectively. Also, with 10% of SW, the values of swelling percent (SP) and swelling pressure (SPR) decreased by 34% and 33%. On the other hand, SW content increase led to the rise in unconfined compressive strength (UCS) of the soil tested from 511kPa to 726kPa with the addition of 10% SW. Based on the findings, it can be confirmed that 10% SW in its natural state is notable for improving fine-grained soil strength and reducing the environmental hazard related to this waste type.
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spelling doaj.art-e4bdd734a98c41f4b5d185c0c1de4e442023-09-03T18:54:17ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392023-09-01290910.31026/j.eng.2023.09.07Characterization of the Geotechnical Properties of Expansive Soil Improved by Sludge WasteSoran Jabbar Hama SalihNihad Bahaadin SalihZozk Kawa Abdalqadir0College of Engineering- University of Sulaimani Recently, a great rise in the population and fast manufacturing processes were noticed. These processes release significant magnitudes of waste. These wastes occupied a notable ground region, generating big issues for the earth and the environment. To enhance the geotechnical properties of fine-grained soil, a sequence of research projects in the lab were conducted to analyze the impacts of adding sludge waste (SW). The tests were done on both natural and mixed soil with SW at various proportions (2%, 4%, 6%, 8%, and 10%) based on the dry mass of the soil used. The experiments conducted focused on consistency, compaction, and shear strength. With the addition of 10% of SW, the values of LL and PI decreased by 29.7% and 38.5%, respectively. Also, with 10% of SW, the values of swelling percent (SP) and swelling pressure (SPR) decreased by 34% and 33%. On the other hand, SW content increase led to the rise in unconfined compressive strength (UCS) of the soil tested from 511kPa to 726kPa with the addition of 10% SW. Based on the findings, it can be confirmed that 10% SW in its natural state is notable for improving fine-grained soil strength and reducing the environmental hazard related to this waste type. https://joe.uobaghdad.edu.iq/index.php/main/article/view/1867Expansive soilGeotechnical characteristicsStabilizationSludge wasteSwelling
spellingShingle Soran Jabbar Hama Salih
Nihad Bahaadin Salih
Zozk Kawa Abdalqadir
Characterization of the Geotechnical Properties of Expansive Soil Improved by Sludge Waste
Journal of Engineering
Expansive soil
Geotechnical characteristics
Stabilization
Sludge waste
Swelling
title Characterization of the Geotechnical Properties of Expansive Soil Improved by Sludge Waste
title_full Characterization of the Geotechnical Properties of Expansive Soil Improved by Sludge Waste
title_fullStr Characterization of the Geotechnical Properties of Expansive Soil Improved by Sludge Waste
title_full_unstemmed Characterization of the Geotechnical Properties of Expansive Soil Improved by Sludge Waste
title_short Characterization of the Geotechnical Properties of Expansive Soil Improved by Sludge Waste
title_sort characterization of the geotechnical properties of expansive soil improved by sludge waste
topic Expansive soil
Geotechnical characteristics
Stabilization
Sludge waste
Swelling
url https://joe.uobaghdad.edu.iq/index.php/main/article/view/1867
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AT nihadbahaadinsalih characterizationofthegeotechnicalpropertiesofexpansivesoilimprovedbysludgewaste
AT zozkkawaabdalqadir characterizationofthegeotechnicalpropertiesofexpansivesoilimprovedbysludgewaste