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Self-compacting recycled aggregate concrete using out-of-service railway superstructure wastes.

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Title: Self-compacting recycled aggregate concrete using out-of-service railway superstructure wastes.
Authors: Sainz-Aja, Jose1 (AUTHOR), Carrascal, Isidro1 (AUTHOR), Polanco, Juan A.1 (AUTHOR), Thomas, Carlos1 (AUTHOR) thomasc@unican.es, Sosa, Israel1 (AUTHOR), Casado, Jose1 (AUTHOR), Diego, Soraya1 (AUTHOR)
Source: Journal of Cleaner Production. Sep2019, Vol. 230, p945-955. 11p.
Subjects: Self-consolidating concrete, Concrete durability, Concrete, Ballast (Railroads), Freeze-thaw cycles, Railroads
Abstract: Slab track is replacing obsolete ballasted track. This work proposes crushing out-of-service ballast and sleepers for use as aggregates for constructing the slab track. Three kinds of recycled self-compacting concretes were designed; the first one with aggregates from crushed ballast, the second one with aggregates from crushed sleepers and the third one with both kinds of aggregates in the proportion they appear in the track. The mechanical and durability properties of these concretes were analysed. The durability test was focused on freeze-thaw and drying-wetting cycles. The results obtained lead to the conclusion that out-of-service track could be used to build the new one, closing the loop. • The use of out of service railway superstructure wastes is validated. • Durability and mechanical properties of self-compacting recycled concrete have been analysed. • The same crushing procedure can provide different tribological properties for different wastes. • Recycled concrete fulfils the requirements of slab track standards. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Cleaner Production is the property of Elsevier B.V. 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: 137094181
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Self-compacting recycled aggregate concrete using out-of-service railway superstructure wastes.
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  Data: <searchLink fieldCode="AR" term="%22Sainz-Aja%2C+Jose%22">Sainz-Aja, Jose</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Carrascal%2C+Isidro%22">Carrascal, Isidro</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Polanco%2C+Juan+A%2E%22">Polanco, Juan A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Thomas%2C+Carlos%22">Thomas, Carlos</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> thomasc@unican.es</i><br /><searchLink fieldCode="AR" term="%22Sosa%2C+Israel%22">Sosa, Israel</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Casado%2C+Jose%22">Casado, Jose</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Diego%2C+Soraya%22">Diego, Soraya</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Cleaner+Production%22">Journal of Cleaner Production</searchLink>. Sep2019, Vol. 230, p945-955. 11p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Self-consolidating+concrete%22">Self-consolidating concrete</searchLink><br /><searchLink fieldCode="DE" term="%22Concrete+durability%22">Concrete durability</searchLink><br /><searchLink fieldCode="DE" term="%22Concrete%22">Concrete</searchLink><br /><searchLink fieldCode="DE" term="%22Ballast+%28Railroads%29%22">Ballast (Railroads)</searchLink><br /><searchLink fieldCode="DE" term="%22Freeze-thaw+cycles%22">Freeze-thaw cycles</searchLink><br /><searchLink fieldCode="DE" term="%22Railroads%22">Railroads</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Slab track is replacing obsolete ballasted track. This work proposes crushing out-of-service ballast and sleepers for use as aggregates for constructing the slab track. Three kinds of recycled self-compacting concretes were designed; the first one with aggregates from crushed ballast, the second one with aggregates from crushed sleepers and the third one with both kinds of aggregates in the proportion they appear in the track. The mechanical and durability properties of these concretes were analysed. The durability test was focused on freeze-thaw and drying-wetting cycles. The results obtained lead to the conclusion that out-of-service track could be used to build the new one, closing the loop. • The use of out of service railway superstructure wastes is validated. • Durability and mechanical properties of self-compacting recycled concrete have been analysed. • The same crushing procedure can provide different tribological properties for different wastes. • Recycled concrete fulfils the requirements of slab track standards. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Cleaner Production is the property of Elsevier B.V. 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: 10.1016/j.jclepro.2019.04.386
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 945
    Subjects:
      – SubjectFull: Self-consolidating concrete
        Type: general
      – SubjectFull: Concrete durability
        Type: general
      – SubjectFull: Concrete
        Type: general
      – SubjectFull: Ballast (Railroads)
        Type: general
      – SubjectFull: Freeze-thaw cycles
        Type: general
      – SubjectFull: Railroads
        Type: general
    Titles:
      – TitleFull: Self-compacting recycled aggregate concrete using out-of-service railway superstructure wastes.
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          Name:
            NameFull: Sainz-Aja, Jose
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            NameFull: Carrascal, Isidro
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            NameFull: Polanco, Juan A.
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            NameFull: Thomas, Carlos
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            NameFull: Sosa, Israel
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            NameFull: Casado, Jose
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            NameFull: Diego, Soraya
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            – D: 01
              M: 09
              Text: Sep2019
              Type: published
              Y: 2019
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              Value: 230
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            – TitleFull: Journal of Cleaner Production
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