Synthesis and characterization of metakaolin-based geopolymers doped with CRT waste glass for radiation shielding applications

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dc.contributor.authorAl-Buriahi, M. S.
dc.contributor.authorKırkbınar, Mine
dc.contributor.authorAlrowaili, Ziyad Awadh
dc.contributor.authorKatubi, Khadijah Mohammedsaleh
dc.contributor.authorAlsaiari, Norah Salem
dc.contributor.authorAlalawi, Amani
dc.contributor.authorAlomayrah, Nora
dc.contributor.authorOlarinoye, I. O.
dc.date.accessioned2024-10-30T13:30:13Z
dc.date.available2024-10-30T13:30:13Z
dc.date.issued2024
dc.departmentFakülteler, Mühendislik Fakültesi, Nanoteknoloji Mühendisliği Bölümü
dc.description.abstractThis study presents the influence of CRT glass on the gamma-ray interaction processes in metakaolin-based geopolymers. Four batches of G-CRT composites (namely, G, G-10CRT, G-20CRT, and G-30CRT, which represent geopolymer (G) samples doped with 0, 10, 20, and 30 wt% of CRT glass) were prepared using the cold hydrostatic press method. The mass attenuation coefficients of the prepared C-xCRT samples were computed using XCOM and FLUKA simulations for photons within the energy range of 15 keV-15 MeV. The density of the pristine geopolymer increased from about 1.86 g/cm3 3 to 2.09, 2.26, and 2.34 g/cm3 3 for G-10CRT, G-20CRT, and G-30CRT, respectively. The photon mass and linear attenuation coefficients of the geopolymers increased with CRT glass concentration. The half-value layer and mean free path were within the ranges 0.070-18.079 cm and 0.101-26.083 cm for G; 0.036-15.110 cm and 0.052-21.799 cm for G-10CRT; 0.024-13.197 cm and 0.014-19.039 cm for G-20CRT; and 0.018-12.074 and 0.026-17.419 cm for G-30CRT. The G-30CRT had the best gamma attenuating prowess in contrast to other G-xCRT. CRT-rich G-xCRT had a higher effective atomic number. For 10 mm thick geopolymer, the absorbed dose rates were 0.211 mu R/h, 0.66 mu R/h, 1.11 mu R/h, and 1.55 mu R/h for G, G-10CRT, G-20CRT, and G-30CRT, respectively, for 100 keV photons. The introduction of CRT glass into the geopolymer matrix improved their photon interaction cross-section. The geopolymers showed outstanding photon interaction ability compared to ordinary concrete and some shielding glasses at low photon energies. The CRT glass-doped geopolymer samples are useful for preparing radiation shielding concrete.
dc.description.sponsorshipPrincess Nourah bint Abdulrahman University
dc.identifier.doi10.1016/j.jrras.2024.101123
dc.identifier.issn1687-8507
dc.identifier.issue4
dc.identifier.urihttps://hdl.handle.net/11501/1546
dc.identifier.urihttps://doi.org/10.1016/j.jrras.2024.101123
dc.identifier.volume17
dc.identifier.wosWOS:001332603100001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.institutionauthorKırkbınar, Mine
dc.institutionauthorid0000-0001-8703-1421
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofJournal of Radiation Research and Applied Sciences
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectMetakaolin Geopolymers
dc.subjectCRT Glass
dc.subjectRadiation Shielding
dc.subjectGamma Dose
dc.titleSynthesis and characterization of metakaolin-based geopolymers doped with CRT waste glass for radiation shielding applications
dc.typeArticle

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