Gamma ray and neutron shielding characteristics of polypropylene fiber-reinforced heavyweight concrete exposed to high temperatures

Basit Öğe Kaydı
dc.authoridGokce, H. Suleyman/0000-0002-6978-0135
dc.contributor.authorDemir, I
dc.contributor.authorGumus, M.
dc.contributor.authorGokce, H. S.
dc.date.accessioned2024-10-04T18:51:02Z
dc.date.available2024-10-04T18:51:02Z
dc.date.issued2020
dc.departmentBayburt Üniversitesien_US
dc.description.abstractThe residual properties of shielding structures need to be redefined after exposure to elevated temperatures due to their probable radiological hazards on biodiversity. In this study, the effect of high temperatures on mechanical, gamma ray and neutron attenuation characteristics was determined for limestone, barite and siderite concrete shields reinforced with polypropylene fiber. The increase in temperature up to 600 degrees C reduced the ultrasonic pulse velocity and compressive strength values of these shields by 59% and 62%, respectively. A good linear correlation (R-2 >= 0.97) was found between these values. While the gamma ray linear attenuation coefficients increased by 9% for barite concrete, and reduced by 15% for normal concrete and by 17% for siderite concrete at 600 degrees C, trivial fluctuations (from -1% to +7%) were observed at 300 degrees C. The neutron attenuation factors of these shields gradually reduced up to 31% with the increase of temperature. The performance of siderite concrete was found to be slightly better than that of barite concrete in terms of strength and neutron shielding characteristics. With the satisfactory linear attenuation coefficients at all energy levels of gamma rays, barite concrete seems to be the most suitable concrete type under high temperature risks. (C) 2020 Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [117M880]en_US
dc.description.sponsorshipThe present study was financially supported with a project (Project No: 117M880) by the Scientific and Technological Research Council of Turkey (TUBITAK).en_US
dc.identifier.doi10.1016/j.conbuildmat.2020.119596
dc.identifier.issn0950-0618
dc.identifier.issn1879-0526
dc.identifier.scopus2-s2.0-85084956115en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.conbuildmat.2020.119596
dc.identifier.urihttp://hdl.handle.net/20.500.12403/3344
dc.identifier.volume257en_US
dc.identifier.wosWOS:000545559400080en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofConstruction and Building Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectShielding of gamma rays and neutronsen_US
dc.subjectConcrete shieldsen_US
dc.subjectLimestoneen_US
dc.subjectBariteen_US
dc.subjectSideriteen_US
dc.subjectHigh temperatureen_US
dc.subjectResidual compressive strengthen_US
dc.titleGamma ray and neutron shielding characteristics of polypropylene fiber-reinforced heavyweight concrete exposed to high temperaturesen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu