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Effect of Mix Design on Fresh Self-Consolidating Concrete and Inferences on Formwork Pressure.

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Title: Effect of Mix Design on Fresh Self-Consolidating Concrete and Inferences on Formwork Pressure.
Authors: Ruiz-Ripoll, L.1 lidia.ruiz@uclm.es, Shah, S. P.2 s-shah@northwestern.edu, Barragán, B. E.3 bryan.barragan@owenscorning.com, Turmo, J.4 jose.turmo@upc.edu
Source: Journal of Materials in Civil Engineering. Jul2015, Vol. 27 Issue 7, p4014202-1-4014202-7. 7p.
Subjects: Self-consolidating concrete, Casting (Manufacturing process), Viscosity, Yield stress, Thixotropy
Abstract: The use of self-consolidating concrete (SCC) has become more prevalent due to its economic and technological advantages over other types of concrete. Nevertheless, issues relating to casting and placement hinder its widespread use. One of the primary concerns of using SCC is related to its high formwork pressure, which affects any type of structural element, whether it is precast or cast on site. This study aimed to make correlations between different parameters obtained through slump flow and shear rheological tests in order to determine what the implication would be on the evolution of formwork pressure for five typical precast SCC mixes. The parameters were slump flow diameter, spreading rate, yield stress, plastic viscosity, and rate of structural rebuilding (stress relaxation). In addition, the advantages, from the point of view of cost and safety, of incorporating nanoclays and viscosity-modifying admixtures in SCC to reduce initial pressure and increase rate of pressure drop to optimize the formwork design were demonstrated. [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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DbLabel: Engineering Source
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PubType: Academic Journal
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  Data: Effect of Mix Design on Fresh Self-Consolidating Concrete and Inferences on Formwork Pressure.
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  Data: <searchLink fieldCode="DE" term="%22Self-consolidating+concrete%22">Self-consolidating concrete</searchLink><br /><searchLink fieldCode="DE" term="%22Casting+%28Manufacturing+process%29%22">Casting (Manufacturing process)</searchLink><br /><searchLink fieldCode="DE" term="%22Viscosity%22">Viscosity</searchLink><br /><searchLink fieldCode="DE" term="%22Yield+stress%22">Yield stress</searchLink><br /><searchLink fieldCode="DE" term="%22Thixotropy%22">Thixotropy</searchLink>
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  Data: The use of self-consolidating concrete (SCC) has become more prevalent due to its economic and technological advantages over other types of concrete. Nevertheless, issues relating to casting and placement hinder its widespread use. One of the primary concerns of using SCC is related to its high formwork pressure, which affects any type of structural element, whether it is precast or cast on site. This study aimed to make correlations between different parameters obtained through slump flow and shear rheological tests in order to determine what the implication would be on the evolution of formwork pressure for five typical precast SCC mixes. The parameters were slump flow diameter, spreading rate, yield stress, plastic viscosity, and rate of structural rebuilding (stress relaxation). In addition, the advantages, from the point of view of cost and safety, of incorporating nanoclays and viscosity-modifying admixtures in SCC to reduce initial pressure and increase rate of pressure drop to optimize the formwork design were demonstrated. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  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:
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      – Type: doi
        Value: 10.1061/(ASCE)MT.1943-5533.0001163
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 7
        StartPage: 4014202-1
    Subjects:
      – SubjectFull: Self-consolidating concrete
        Type: general
      – SubjectFull: Casting (Manufacturing process)
        Type: general
      – SubjectFull: Viscosity
        Type: general
      – SubjectFull: Yield stress
        Type: general
      – SubjectFull: Thixotropy
        Type: general
    Titles:
      – TitleFull: Effect of Mix Design on Fresh Self-Consolidating Concrete and Inferences on Formwork Pressure.
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            NameFull: Ruiz-Ripoll, L.
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            NameFull: Shah, S. P.
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            NameFull: Barragán, B. E.
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            NameFull: Turmo, J.
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            – D: 01
              M: 07
              Text: Jul2015
              Type: published
              Y: 2015
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              Value: 27
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              Value: 7
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            – TitleFull: Journal of Materials in Civil Engineering
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