Gamma-ray attenuation coefficients and transmission thickness of high consistency heavyweight concrete containing mineral admixture

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dc.authorid36782041200
dc.authorid55915792500
dc.authorid6603962061
dc.authorid25635150300
dc.contributor.authorGökçe H.S.
dc.contributor.authorÖztürk B.C.
dc.contributor.authorÇam N.F.
dc.contributor.authorAndiç-Çakır Ö.
dc.date.accessioned20.04.201910:49:12
dc.date.accessioned2019-04-20T21:43:02Z
dc.date.available20.04.201910:49:12
dc.date.available2019-04-20T21:43:02Z
dc.date.issued2018
dc.departmentBayburt Üniversitesien_US
dc.description.abstractIn the study, high consistency heavyweight concrete mixtures containing barite aggregate were produced by using some common mineral admixtures (viscosity modifier, silica fume and fly ash) at various water/binder ratios and binder contents. Gamma-ray linear attenuation coefficients of the concrete mixtures were determined by using gamma sources of 137Cs and 60Co in NaI(Tl) gamma spectrometry system. The relationship between specimen thickness and transmission of the rays was constituted by emphasizing their mean free path, half-value layer, and tenth-value layer. Moreover, experimental mass attenuation coefficients of the concrete specimens were determined and compared with theoretical mass attenuation coefficients calculated by XCOM software depending on elemental fractions of these concrete in equivalent energies (662 keV, 1173 keV and 1332 keV). As a result, the replacement of the aforementioned admixtures with ordinary cement negatively affected the linear attenuation coefficients of the heavyweight concrete. A relative change of up to 25% was observed between the least and the highest attenuation thickness values at a certain gamma-ray transmission. A good regression relationship has been established between density and linear attenuation coefficients, density and mean free path, and density and half- or tenth-value layers of the heavyweight concrete. Theoretical (XCOM) mass attenuation coefficients were found similar to the experimental mass attenuation coefficients of the heavyweight concretes. Although there is a good linear regression relation between the theoretical and experimental mass attenuation coefficients at 662 keV energy of gamma rays, the relations were disappeared at 1173 and 1332 keV energies of gamma rays. © 2018 Elsevier Ltden_US
dc.identifier.doi10.1016/j.cemconcomp.2018.05.015
dc.identifier.endpage69
dc.identifier.issn0958-9465
dc.identifier.scopus2-s2.0-85047795211en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage56
dc.identifier.urihttps://dx.doi.org/10.1016/j.cemconcomp.2018.05.015
dc.identifier.urihttps://hdl.handle.net/20.500.12403/357
dc.identifier.volume92
dc.identifier.wosWOS:000442190700006en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Ltd
dc.relation.ispartofCement and Concrete Compositesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBarite aggregate
dc.subjectGamma rays
dc.subjectHigh consistency heavyweight concrete
dc.subjectMass and linear attenuation coefficient
dc.subjectMineral admixtures
dc.subjectTransmission thickness
dc.subjectAggregates
dc.subjectBarite
dc.subjectComputerized tomography
dc.subjectConcrete additives
dc.subjectConcrete mixtures
dc.subjectElectromagnetic wave attenuation
dc.subjectFly ash
dc.subjectMixtures
dc.subjectSilica fume
dc.subjectSodium Iodide
dc.subjectGamma-ray attenuation coefficients
dc.subjectHeavyweight concretes
dc.subjectLinear attenuation coefficients
dc.subjectMass and linear attenuation coefficients
dc.subjectMass attenuation coefficients
dc.subjectMineral admixtures
dc.subjectRegression relationship
dc.subjectViscosity modifiers
dc.subjectGamma rays
dc.subjectBarite aggregate
dc.subjectGamma rays
dc.subjectHigh consistency heavyweight concrete
dc.subjectMass and linear attenuation coefficient
dc.subjectMineral admixtures
dc.subjectTransmission thickness
dc.subjectAggregates
dc.subjectBarite
dc.subjectComputerized tomography
dc.subjectConcrete additives
dc.subjectConcrete mixtures
dc.subjectElectromagnetic wave attenuation
dc.subjectFly ash
dc.subjectMixtures
dc.subjectSilica fume
dc.subjectSodium Iodide
dc.subjectGamma-ray attenuation coefficients
dc.subjectHeavyweight concretes
dc.subjectLinear attenuation coefficients
dc.subjectMass and linear attenuation coefficients
dc.subjectMass attenuation coefficients
dc.subjectMineral admixtures
dc.subjectRegression relationship
dc.subjectViscosity modifiers
dc.subjectGamma rays
dc.titleGamma-ray attenuation coefficients and transmission thickness of high consistency heavyweight concrete containing mineral admixtureen_US
dc.typeArticleen_US

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