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Effect of temperature on fatigue behaviour of self-compacting recycled aggregate concrete.

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Title: Effect of temperature on fatigue behaviour of self-compacting recycled aggregate concrete.
Authors: Sainz-Aja, Jose A.1 (AUTHOR), Carrascal, Isidro A.1 (AUTHOR), Polanco, Juan A.1 (AUTHOR), Thomas, Carlos1 (AUTHOR) thomasc@unican.es
Source: Cement & Concrete Composites. Jan2022, Vol. 125, pN.PAG-N.PAG. 1p.
Subjects: Temperature effect, Concrete fatigue, Self-consolidating concrete, Fatigue life, Concrete, Concrete testing, Fatigue testing machines
Abstract: The most recommendable frequency range for concrete fatigue tests is between 1 and 15 Hz. It has been clearly established that performing the tests at low frequency (<1 Hz) reduces the fatigue limit because it increases test time and therefore, creep damage. On the other hand, there are not enough studies analysing tests above 15 Hz, which could greatly reduce test time. In this work, three recycled concretes were characterized, starting with the comparison between tests at moderate frequency (10 Hz) with tests at very high frequency (90 Hz). From these tests it was observed that, in all cases, the fatigue limit or fatigue life was notably lower in the case of performing the tests at high frequency. The test results show that, in the case of tests performed over the fatigue limit, the temperature of the specimens rises up to approximately 100 °C, while, in the case of tests performed with strength lower the fatigue limit, the temperature stabilises at around 65 °C. In order to analyse whether the temperature was the cause of the reduction in the fatigue limit, creep tests were carried out at 3 temperatures: 20, 65 and 100 °C, and it was possible to verify that creep damage became significantly greater as temperature was increased, and that this effect was emphasized in those cases where the concretes were made with recycled crushed concrete aggregates. [ABSTRACT FROM AUTHOR]
Copyright of Cement & Concrete Composites 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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DbLabel: Engineering Source
An: 153871126
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Effect of temperature on fatigue behaviour of self-compacting recycled aggregate concrete.
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Sainz-Aja%2C+Jose+A%2E%22&quot;&gt;Sainz-Aja, Jose A.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Carrascal%2C+Isidro+A%2E%22&quot;&gt;Carrascal, Isidro A.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Polanco%2C+Juan+A%2E%22&quot;&gt;Polanco, Juan A.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Thomas%2C+Carlos%22&quot;&gt;Thomas, Carlos&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;i&gt; thomasc@unican.es&lt;/i&gt;
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Cement+%26+Concrete+Composites%22&quot;&gt;Cement &amp; Concrete Composites&lt;/searchLink&gt;. Jan2022, Vol. 125, pN.PAG-N.PAG. 1p.
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– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The most recommendable frequency range for concrete fatigue tests is between 1 and 15 Hz. It has been clearly established that performing the tests at low frequency (&lt;1 Hz) reduces the fatigue limit because it increases test time and therefore, creep damage. On the other hand, there are not enough studies analysing tests above 15 Hz, which could greatly reduce test time. In this work, three recycled concretes were characterized, starting with the comparison between tests at moderate frequency (10 Hz) with tests at very high frequency (90 Hz). From these tests it was observed that, in all cases, the fatigue limit or fatigue life was notably lower in the case of performing the tests at high frequency. The test results show that, in the case of tests performed over the fatigue limit, the temperature of the specimens rises up to approximately 100 &#176;C, while, in the case of tests performed with strength lower the fatigue limit, the temperature stabilises at around 65 &#176;C. In order to analyse whether the temperature was the cause of the reduction in the fatigue limit, creep tests were carried out at 3 temperatures: 20, 65 and 100 &#176;C, and it was possible to verify that creep damage became significantly greater as temperature was increased, and that this effect was emphasized in those cases where the concretes were made with recycled crushed concrete aggregates. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: &lt;i&gt;Copyright of Cement &amp; Concrete Composites is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder&#39;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.&lt;/i&gt; (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.cemconcomp.2021.104309
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Temperature effect
        Type: general
      – SubjectFull: Concrete fatigue
        Type: general
      – SubjectFull: Self-consolidating concrete
        Type: general
      – SubjectFull: Fatigue life
        Type: general
      – SubjectFull: Concrete
        Type: general
      – SubjectFull: Concrete testing
        Type: general
      – SubjectFull: Fatigue testing machines
        Type: general
    Titles:
      – TitleFull: Effect of temperature on fatigue behaviour of self-compacting recycled aggregate concrete.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Sainz-Aja, Jose A.
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            NameFull: Carrascal, Isidro A.
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            NameFull: Polanco, Juan A.
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          Name:
            NameFull: Thomas, Carlos
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          Dates:
            – D: 01
              M: 01
              Text: Jan2022
              Type: published
              Y: 2022
          Identifiers:
            – Type: issn-print
              Value: 09589465
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            – Type: volume
              Value: 125
          Titles:
            – TitleFull: Cement & Concrete Composites
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