Novel concrete compositions for γ-rays and neutron shielding using WC and B4C

Soni, Bhargav; Makwana, R.; Mukherjee, S.; Barala, Surendra Singh; Parashari, Siddharth; Chauhan, Rakesh; Jodha, A.S.; Katovsky, Karel

doi:10.1016/j.rinma.2021.100177

Cited by 11 publications

(3 citation statements)

References 28 publications

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“…Research on additives of nano-CaCO 3 and nano-silica in steel slag RSC used up to 3% of the weight of the cement. Research on the neutron absorbing additive of WC and B 4 C used 20% of the total mixture weight [ 102 ]. WC is effective in absorbing neutrons due to the presence of carbon, which is similar to boron in the ceramic material of B 4 C. An earlier study used carbon powder of up to 15% of the cement weight in hematite RSC [ 103 ].…”

Section: Alternative Materials Used In Rscmentioning

confidence: 99%

Recent Trends in Advanced Radiation Shielding Concrete for Construction of Facilities: Materials and Properties

et al. 2022

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Nuclear energy offers a wide range of applications, which include power generation, X-ray imaging, and non-destructive tests, in many economic sectors. However, such applications come with the risk of harmful radiation, thereby requiring shielding to prevent harmful effects on the surrounding environment and users. Concrete has long been used as part of structures in nuclear power plants, X-ray imaging rooms, and radioactive storage. The direction of recent research is headed toward concrete’s ability in attenuating harmful energy radiated from nuclear sources through various alterations to its composition. Radiation shielding concrete (RSC) is a composite-based concrete that was developed in the last few years with heavy natural aggregates such as magnetite or barites. RSC is deemed a superior alternative to many types of traditional normal concrete in terms of shielding against the harmful radiation, and being economical and moldable. Given the merits of RSCs, this article presents a comprehensive review on the subject, considering the classifications, alternative materials, design additives, and type of heavy aggregates used. This literature review also provides critical reviews on RSC performance in terms of radiation shielding characteristics, mechanical strength, and durability. In addition, this work extensively reviews the trends of development research toward a broad understanding of the application possibilities of RSC as an advanced concrete product for producing a robust and green concrete composite for the construction of radiation shielding facilities as a better solution for protection from sources of radiation. Furthermore, this critical review provides a view of the progress made on RSCs and proposes avenues for future research on this hotspot research topic.

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Section: Alternative Materials Used In Rscmentioning

confidence: 99%

Recent Trends in Advanced Radiation Shielding Concrete for Construction of Facilities: Materials and Properties

et al. 2022

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“…At the same time, the incorporation of bulk mixtures of materials is available only in a few works. For instance, Soni et al [ 43 ] combined WC and B 4 C particles in concrete, while Nikbin et al [ 20 ] proposed the introduction of nano-Bi 2 O 3 and nano-WO 3 particles for targeted improvement of radiation shielding.…”

Section: Introductionmentioning

confidence: 99%

Functional Bi2O3/Gd2O3 Silica-Coated Structures for Improvement of Early Age and Radiation Shielding Performance of Cement Pastes

Cendrowski,

Federowicz,

Techman

et al. 2024

Nanomaterials

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This study presents a new approach towards the production of sol-gel silica-coated Bi2O3/Gd2O3 cement additives towards the improvement of early mechanical performance and radiation attenuation. Two types of silica coatings, which varied in synthesis method and morphology, were used to coat Bi2O3/Gd2O3 structures and evaluated as a cement filler in Portland cement pastes. Isothermal calorimetry studies and early strength evaluations confirmed that both proposed coating types can overcome retarded cement hydration process, attributed to Bi2O3 presence, resulting in improved one day compressive strength by 300% and 251% (depending on coating method) when compared to paste containing pristine Bi2O3 and Gd2O3 particles. Moreover, depending on the type of chosen coating type, various rheological performances of cement pastes can be achieved. Thanks to the proposed combination of materials, both gamma-rays and slow neutron attenuation in cement pastes can be simultaneously improved. The introduction of silica coating resulted in an increment of the gamma-ray and neutron shielding thanks to the increased probability of radiation interaction. Along with the positive early age effects of the synthesized structures, the 28 day mechanical performance of cement pastes was not suppressed, and was found to be comparable to that of the control specimen. As an outcome, silica-coated structures can be successfully used in radiation-shielding cement-based composites, e.g. with demanding early age performances.

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“…There are many material studied in the literature that is focused on radiation shielding [6][7][8][9][10], especially glasses and ceramics systems have been examined [11][12][13][14] but alloys are more preferred than other materials in radiation protection applications [15] as they have optimal properties such as density, heat resistance, melting point, homogeneity, and mechanical strength, and have high production possibilities in many different combinations [16,17]. Aluminum alloys are widely used in many application areas, such as nuclear reactor boilers, where good weldability and excellent corrosion resistance are required [18].…”

Section: Introductionmentioning

confidence: 99%

Microstructural, thermal, and radiation shielding properties of Al50B25Mg25 alloy prepared by mechanical alloying

Yaykaşlı

Eskalen

Kavun

et al. 2021

J Mater Sci: Mater Electron

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Novel concrete compositions for γ-rays and neutron shielding using WC and B4C

Cited by 11 publications

References 28 publications

Recent Trends in Advanced Radiation Shielding Concrete for Construction of Facilities: Materials and Properties

Recent Trends in Advanced Radiation Shielding Concrete for Construction of Facilities: Materials and Properties

Functional Bi2O3/Gd2O3 Silica-Coated Structures for Improvement of Early Age and Radiation Shielding Performance of Cement Pastes

Microstructural, thermal, and radiation shielding properties of Al50B25Mg25 alloy prepared by mechanical alloying

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