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Influence of Eggshell Ash and Stone Powder on Geotechnical Properties of Expansive Clay in Dukem Town.

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Title: Influence of Eggshell Ash and Stone Powder on Geotechnical Properties of Expansive Clay in Dukem Town.
Authors: Teferra, Tadesse Endale1 (AUTHOR), Assefa, Eleyas2 (AUTHOR), Assefa, S. M.2 (AUTHOR)
Source: Advances in Civil Engineering. 10/31/2023, p1-16. 16p.
Subjects: Albite, Clay, Eggshells, Orthoclase, Magnetite, Scanning electron microscopy
Abstract: Expansive clays exhibit a distinctive swelling–shrinkage behavior, leading to structural distress and damage when subjected to varying moisture levels during different seasons. So, to mitigate these issues, stabilization techniques are commonly employed, aiming to diminish swelling tendencies and enhance the strength characteristics of expansive clays. This study delves into the transformative impact of utilizing eggshell ash (ESA) and stone powder (SP) as stabilizing agents on both the index properties and strength parameters of expansive clays. The selection of these stabilizing agents is guided by criteria encompassing cost-effectiveness, availability, and environmental compatibility. Through comprehensive analysis utilizing scanning electron microscopy (SEM) and X-ray diffraction (XRD), the mineralogical compositions of both soil and additives are meticulously examined. The XRD analysis of the expansive clay unveils the presence of minerals such as quartz, sanidine (potassium or sodium feldspar), and magnetite. Incorporating ESA into the expansive clay matrix yields substantial improvements across various soil index values, encompassing the free swell index, free swell ratio, linear shrinkage, and unconfined compressive strength value. To further amplify these benefits, the study extends its focus to the influence of SP while maintaining a consistent 6% ESA content. Notably, the addition of SP exhibits a significant enhancement in compressive strength, alongside other crucial properties. Synthesizing these findings, the laboratory results point to an optimal combination ratio of 6% ESA and 15% SP, as a recommended approach to achieve superior stabilization effects. This research contributes to a deeper understanding of the interplay between stabilizing agents and expansive clays, paving the way for improved engineering practices and more resilient structural designs. [ABSTRACT FROM AUTHOR]
Copyright of Advances in Civil Engineering is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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PubType: Academic Journal
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  Label: Title
  Group: Ti
  Data: Influence of Eggshell Ash and Stone Powder on Geotechnical Properties of Expansive Clay in Dukem Town.
– Name: Author
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  Data: <searchLink fieldCode="AR" term="%22Teferra%2C+Tadesse+Endale%22">Teferra, Tadesse Endale</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Assefa%2C+Eleyas%22">Assefa, Eleyas</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Assefa%2C+S%2E+M%2E%22">Assefa, S. M.</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Advances+in+Civil+Engineering%22">Advances in Civil Engineering</searchLink>. 10/31/2023, p1-16. 16p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Albite%22">Albite</searchLink><br /><searchLink fieldCode="DE" term="%22Clay%22">Clay</searchLink><br /><searchLink fieldCode="DE" term="%22Eggshells%22">Eggshells</searchLink><br /><searchLink fieldCode="DE" term="%22Orthoclase%22">Orthoclase</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetite%22">Magnetite</searchLink><br /><searchLink fieldCode="DE" term="%22Scanning+electron+microscopy%22">Scanning electron microscopy</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Expansive clays exhibit a distinctive swelling–shrinkage behavior, leading to structural distress and damage when subjected to varying moisture levels during different seasons. So, to mitigate these issues, stabilization techniques are commonly employed, aiming to diminish swelling tendencies and enhance the strength characteristics of expansive clays. This study delves into the transformative impact of utilizing eggshell ash (ESA) and stone powder (SP) as stabilizing agents on both the index properties and strength parameters of expansive clays. The selection of these stabilizing agents is guided by criteria encompassing cost-effectiveness, availability, and environmental compatibility. Through comprehensive analysis utilizing scanning electron microscopy (SEM) and X-ray diffraction (XRD), the mineralogical compositions of both soil and additives are meticulously examined. The XRD analysis of the expansive clay unveils the presence of minerals such as quartz, sanidine (potassium or sodium feldspar), and magnetite. Incorporating ESA into the expansive clay matrix yields substantial improvements across various soil index values, encompassing the free swell index, free swell ratio, linear shrinkage, and unconfined compressive strength value. To further amplify these benefits, the study extends its focus to the influence of SP while maintaining a consistent 6% ESA content. Notably, the addition of SP exhibits a significant enhancement in compressive strength, alongside other crucial properties. Synthesizing these findings, the laboratory results point to an optimal combination ratio of 6% ESA and 15% SP, as a recommended approach to achieve superior stabilization effects. This research contributes to a deeper understanding of the interplay between stabilizing agents and expansive clays, paving the way for improved engineering practices and more resilient structural designs. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Advances in Civil Engineering is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1155/2023/6690298
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      – Code: eng
        Text: English
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        PageCount: 16
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      – SubjectFull: Albite
        Type: general
      – SubjectFull: Clay
        Type: general
      – SubjectFull: Eggshells
        Type: general
      – SubjectFull: Orthoclase
        Type: general
      – SubjectFull: Magnetite
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      – SubjectFull: Scanning electron microscopy
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      – TitleFull: Influence of Eggshell Ash and Stone Powder on Geotechnical Properties of Expansive Clay in Dukem Town.
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            NameFull: Teferra, Tadesse Endale
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            NameFull: Assefa, Eleyas
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            NameFull: Assefa, S. M.
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            – D: 31
              M: 10
              Text: 10/31/2023
              Type: published
              Y: 2023
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