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Evaluation of Early-Age Volume Changes of Shotcrete Using Ring Specimens.

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Title: Evaluation of Early-Age Volume Changes of Shotcrete Using Ring Specimens.
Authors: Menu, Bruce1 (AUTHOR) bruce-gandhi.menu.1@ulaval.ca, Bissonnette, Benoit2 (AUTHOR) Benoit.Bissonnette@gci.ulaval.ca, Jolin, Marc2 (AUTHOR) Marc.Jolin@gci.ulaval.ca
Source: Journal of Materials in Civil Engineering. Nov2023, Vol. 35 Issue 11, p1-16. 16p.
Subjects: Shotcrete, Fly ash, Creep (Materials), Silica fume
Abstract: In this study, both free and restrained shrinkage tests were performed to derive the total tensile strain behavior (i.e., creep effect) of wet-mix and dry-mix shotcretes. A simple analysis procedure is presented to quantify the tensile creep properties of shotcrete using results obtained from standard ring tests and mechanical property tests. The results showed that the rings dried along the axial direction had higher total tensile strain properties compared with those dried along the radial direction. The results further showed that coarse aggregate content of shotcrete affects the total tensile strain properties. Similarly, adding silica fume, fly ash, polymer, shrinkage-reducing admixture (SRA), and crack-reducing admixture (CRA) reduces the total tensile strain properties of shotcrete. However, the decrease observed when using SRA and CRA does not increase the risk of early-age cracking because shrinkage is also reduced proportionally. Thus, a higher total tensile strain capacity is only beneficial in reducing cracking if it does not cause a proportional increase in shrinkage. Overall, the analysis indicates that the effect of creep is a crucial factor in the evaluating of the risk and sensitivity to cracking of shotcrete. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials in Civil Engineering is the property of American Society of Civil Engineers 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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Header DbId: egs
DbLabel: Engineering Source
An: 172023372
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Evaluation of Early-Age Volume Changes of Shotcrete Using Ring Specimens.
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  Data: <searchLink fieldCode="AR" term="%22Menu%2C+Bruce%22">Menu, Bruce</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> bruce-gandhi.menu.1@ulaval.ca</i><br /><searchLink fieldCode="AR" term="%22Bissonnette%2C+Benoit%22">Bissonnette, Benoit</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> Benoit.Bissonnette@gci.ulaval.ca</i><br /><searchLink fieldCode="AR" term="%22Jolin%2C+Marc%22">Jolin, Marc</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> Marc.Jolin@gci.ulaval.ca</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+in+Civil+Engineering%22">Journal of Materials in Civil Engineering</searchLink>. Nov2023, Vol. 35 Issue 11, p1-16. 16p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Shotcrete%22">Shotcrete</searchLink><br /><searchLink fieldCode="DE" term="%22Fly+ash%22">Fly ash</searchLink><br /><searchLink fieldCode="DE" term="%22Creep+%28Materials%29%22">Creep (Materials)</searchLink><br /><searchLink fieldCode="DE" term="%22Silica+fume%22">Silica fume</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this study, both free and restrained shrinkage tests were performed to derive the total tensile strain behavior (i.e., creep effect) of wet-mix and dry-mix shotcretes. A simple analysis procedure is presented to quantify the tensile creep properties of shotcrete using results obtained from standard ring tests and mechanical property tests. The results showed that the rings dried along the axial direction had higher total tensile strain properties compared with those dried along the radial direction. The results further showed that coarse aggregate content of shotcrete affects the total tensile strain properties. Similarly, adding silica fume, fly ash, polymer, shrinkage-reducing admixture (SRA), and crack-reducing admixture (CRA) reduces the total tensile strain properties of shotcrete. However, the decrease observed when using SRA and CRA does not increase the risk of early-age cracking because shrinkage is also reduced proportionally. Thus, a higher total tensile strain capacity is only beneficial in reducing cracking if it does not cause a proportional increase in shrinkage. Overall, the analysis indicates that the effect of creep is a crucial factor in the evaluating of the risk and sensitivity to cracking of shotcrete. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Materials in Civil Engineering is the property of American Society of Civil Engineers 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:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1061/JMCEE7.MTENG-16125
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 16
        StartPage: 1
    Subjects:
      – SubjectFull: Shotcrete
        Type: general
      – SubjectFull: Fly ash
        Type: general
      – SubjectFull: Creep (Materials)
        Type: general
      – SubjectFull: Silica fume
        Type: general
    Titles:
      – TitleFull: Evaluation of Early-Age Volume Changes of Shotcrete Using Ring Specimens.
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            NameFull: Menu, Bruce
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            NameFull: Bissonnette, Benoit
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            NameFull: Jolin, Marc
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            – D: 01
              M: 11
              Text: Nov2023
              Type: published
              Y: 2023
          Identifiers:
            – Type: issn-print
              Value: 08991561
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              Value: 35
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              Value: 11
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            – TitleFull: Journal of Materials in Civil Engineering
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