1 Ocak 2018 Dergi makalesi Açık Erişim

Tuyan, Murat; Ahari, Reza Saleh; Erdem, Tahir Kemal; Cakir, Ozge Andic; Ramyar, Kambiz

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        "affiliation": "Ege Univ, Dept Civil Engn, Bornova, Turkey", 
        "name": "Tuyan, Murat"
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      {
        "affiliation": "Islamic Azad Univ, Dept Civil Engn, Tabriz Branch, Tabriz, Iran", 
        "name": "Ahari, Reza Saleh"
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      {
        "affiliation": "Izmir Inst Technol, Dept Civil Engn, Urla Izmir, Turkey", 
        "name": "Erdem, Tahir Kemal"
      }, 
      {
        "affiliation": "Ege Univ, Dept Civil Engn, Bornova, Turkey", 
        "name": "Cakir, Ozge Andic"
      }, 
      {
        "affiliation": "Ege Univ, Dept Civil Engn, Bornova, Turkey", 
        "name": "Ramyar, Kambiz"
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    "description": "In this experimental study, the influence of thixotropy determined by different test methods on the formwork pressure of self-consolidating concrete (SCC) with varying compositions was investigated. In order to determine the effect of water/binder (w/b) ratio, slump flow diameter and coarse aggregate/total aggregate (CA/TA) ratio on thixotropy and formwork pressure of SCC, fifteen concrete mixtures were prepared. Four different test methods i.e., \"structural break-down area\" (SBDA), \"break-down percentage\" (BDP), \"drop in apparent viscosity\" (DAV) and \"yield value at rest\" (YVR) were performed to determine the thixotropy of the SCC mixtures. Test results showed that the SBDA, DAV and YVR methods were more appropriate to evaluate the thixotropy of SCC than the BDP method. A strong correlation between thixotropy and formwork pressure was found using SBDA, DAV and YVR methods in SCC mixtures having low w/b ratio. There was a strong relationship between thixotropy determined by SBDA, BDP and DAV methods and formwork pressure in low slump flow SCC mixtures, while thixotropy determined by the YVR method showed good correlation with the formwork pressure in SCC mixtures having high slump flow values. Finally, new models were developed to estimate the formwork pressure of all kinds of mixtures as a function of thixotropy and time. The models were found to be successful for each of the thixotropy measurement method. (C) 2018 Elsevier Ltd. All rights reserved.", 
    "doi": "10.1016/j.conbuildmat.2018.04.046", 
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    "journal": {
      "pages": "189-200", 
      "title": "CONSTRUCTION AND BUILDING MATERIALS", 
      "volume": "173"
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    "publication_date": "2018-01-01", 
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    "title": "Influence of thixotropy determined by different test methods on formwork pressure of self-consolidating concrete"
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