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Optimizing straw in rheology and compression–permeability of cemented dredged slurry.

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Title: Optimizing straw in rheology and compression–permeability of cemented dredged slurry.
Authors: Xu, Guizhong1 (AUTHOR), Wu, Fahong2 (AUTHOR), Geng, Weijuan3 (AUTHOR) geng@ujs.edu.cn
Source: Marine Georesources & Geotechnology. May2025, Vol. 43 Issue 5, p832-847. 16p.
Subjects: Rice straw, Dynamic viscosity, Water immersion, Hydraulic conductivity, Natural fibers
Abstract: This study investigated the rheological and compression–permeability attributes of dredged slurry reinforced using waste rice straws. Recognizing the potential of natural waste fibers in geotechnical applications, this study aimed to elucidate the effects of fiber length and pretreatment processes on the relocation dynamics of the cemented slurry. A series of laboratory evaluations were conducted to gauge critical parameters such as flow consistency, viscosity, one-dimensional compression, and hydraulic conductivity. Results indicated that straw lengths greater than 0.075 mm significantly increased slurry slump flow due to altered surface area and water adsorption. Dynamic viscosity decreased with increasing straw length, yet overall performance improved with straw inclusion. The influence of immersing straws in pure water emerged as a determinant in the study. A 24-h pretreatment duration influenced the flowability, viscosity, and the structural integrity of the fibers. Based on the observations, the study deduces that straw powder finer than 0.075 mm, subjected to a 24-h immersion in pure water, optimally bolsters the flow properties of cemented waste slurry. While the benefits associated with elongated straw fibers necessitate exploration and validation, this work underscores the potential of rice straw as a sustainable reinforcement material in geotechnical endeavors, promoting waste recycling and reducing environmental impact. [ABSTRACT FROM AUTHOR]
Copyright of Marine Georesources & Geotechnology is the property of Taylor & Francis Ltd 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.)
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DbLabel: Engineering Source
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  Data: Optimizing straw in rheology and compression–permeability of cemented dredged slurry.
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  Data: <searchLink fieldCode="AR" term="%22Xu%2C+Guizhong%22">Xu, Guizhong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wu%2C+Fahong%22">Wu, Fahong</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Geng%2C+Weijuan%22">Geng, Weijuan</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> geng@ujs.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Marine+Georesources+%26+Geotechnology%22">Marine Georesources & Geotechnology</searchLink>. May2025, Vol. 43 Issue 5, p832-847. 16p.
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  Data: <searchLink fieldCode="DE" term="%22Rice+straw%22">Rice straw</searchLink><br /><searchLink fieldCode="DE" term="%22Dynamic+viscosity%22">Dynamic viscosity</searchLink><br /><searchLink fieldCode="DE" term="%22Water+immersion%22">Water immersion</searchLink><br /><searchLink fieldCode="DE" term="%22Hydraulic+conductivity%22">Hydraulic conductivity</searchLink><br /><searchLink fieldCode="DE" term="%22Natural+fibers%22">Natural fibers</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study investigated the rheological and compression–permeability attributes of dredged slurry reinforced using waste rice straws. Recognizing the potential of natural waste fibers in geotechnical applications, this study aimed to elucidate the effects of fiber length and pretreatment processes on the relocation dynamics of the cemented slurry. A series of laboratory evaluations were conducted to gauge critical parameters such as flow consistency, viscosity, one-dimensional compression, and hydraulic conductivity. Results indicated that straw lengths greater than 0.075 mm significantly increased slurry slump flow due to altered surface area and water adsorption. Dynamic viscosity decreased with increasing straw length, yet overall performance improved with straw inclusion. The influence of immersing straws in pure water emerged as a determinant in the study. A 24-h pretreatment duration influenced the flowability, viscosity, and the structural integrity of the fibers. Based on the observations, the study deduces that straw powder finer than 0.075 mm, subjected to a 24-h immersion in pure water, optimally bolsters the flow properties of cemented waste slurry. While the benefits associated with elongated straw fibers necessitate exploration and validation, this work underscores the potential of rice straw as a sustainable reinforcement material in geotechnical endeavors, promoting waste recycling and reducing environmental impact. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Marine Georesources & Geotechnology is the property of Taylor & Francis Ltd 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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    Identifiers:
      – Type: doi
        Value: 10.1080/1064119X.2024.2366516
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 16
        StartPage: 832
    Subjects:
      – SubjectFull: Rice straw
        Type: general
      – SubjectFull: Dynamic viscosity
        Type: general
      – SubjectFull: Water immersion
        Type: general
      – SubjectFull: Hydraulic conductivity
        Type: general
      – SubjectFull: Natural fibers
        Type: general
    Titles:
      – TitleFull: Optimizing straw in rheology and compression–permeability of cemented dredged slurry.
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            NameFull: Xu, Guizhong
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            NameFull: Wu, Fahong
      – PersonEntity:
          Name:
            NameFull: Geng, Weijuan
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          Dates:
            – D: 01
              M: 05
              Text: May2025
              Type: published
              Y: 2025
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              Value: 1064119X
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              Value: 43
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              Value: 5
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            – TitleFull: Marine Georesources & Geotechnology
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