Investigation of gamma-ray shielding properties of concrete containing different percentages of lead

Rezaei-Ochbelagh, D.; Azimkhani, S.

doi:10.1016/j.apradiso.2012.06.020

Cited by 74 publications

(22 citation statements)

References 10 publications

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“…The study of tissue-equivalent substitutes, dosimetric materials, radiation shielding materials, building materials is useful in radiation protection, medical radiation therapy, nuclear physics, electronics industry, material modification, etc. (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13). For the study of these effects, to study the interaction and absorption of gamma rays in materials or samples is also important (14).…”

Section: Introductionmentioning

confidence: 99%

Effects of gamma irradiation on some chemicals using an NaI (Tl) detector

Bhosale

Gaikwad

Pawar

et al. 2016

Radiation Effects and Defects in Solids

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The present work was carried out to find out the gamma ray shielding properties and to study the effects using an NaI (Tl) detector using radioactive sources 57 Co, 133 Ba, 137 Cs, 54 Mn, 60 Co and 22 Na at energies 122, 356, 511, 662, 840, 1170, 1275 and 1330 keV, for some chemicals, namely, sodium thiosulfate (Na 2 S 2 O 3 ), benzoic acid (C 7 H 6 O 2 ), sodium hydroxide (NaOH), poly vinyl alcohol (PVA) (C 2 H 4 O), potassium nitrate (KNO3), naphthalene (C 10 H 8 ). Mass attenuation coefficient (µ m ) values obtained from the experiment were used to determine the effective atomic numbers (Z eff ) and effective electron densities (N eff ), atomic cross-sections (σ t ) and electronic cross-sections (σ e ); it will be observed from the present work that the variation in the obtained values is only due to the increase or decrease in the gamma ray energy and the chemical composition of the sample. It was seen that the calculated and obtained values showed good agreement. The investigated data are useful in the electronic industry, plastic industry, building materials and agriculture fields. From the present work it was found that the PVA could be used as a better gamma shielding material. ARTICLE HISTORY

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Section: Introductionmentioning

confidence: 99%

Effects of gamma irradiation on some chemicals using an NaI (Tl) detector

Bhosale

Gaikwad

Pawar

et al. 2016

Radiation Effects and Defects in Solids

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show abstract

“…Therefore, the powdered or coarse additions containing the heavy metals are increasingly used for manufacturing such concretes [ 29 ]. Commonly known is the use of the lead powders [ 30 ] and aggregates [ 31 ], but due to the potential toxicity [ 32 ] the use of lead in the shielding concretes has been limited. For this reason, such wastes as the IOT, iron oxides concentrates obtained from the combustion of the minerals and the wastes from the processes of mining and crushing the igneous rocks are increasingly used in the shielding concretes [ 33 , 34 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Elevated Temperatures on the Properties of Cement Mortars with the Iron Oxides Concentrate

et al. 2020

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Using the waste materials in the production of the building materials limits the storage of the wastes, burdensome for the environment and landscape, and makes possible to manufacture the materials and products with the use of the less volume of the raw materials. Cement concretes and mortars as the basic building materials offer the broad prospects of utilization of the recyclable or waste materials. The wastes from the iron ore processing are the solid wastes resulting from the process of enrichment of the ore concentrate. The paper presents the results of testing three mortars, in which a part of fine aggregate was replaced with the iron oxide concentrate (IOC) resulting from such a process. IOC has been used as a substitute of 10%, 20% and 30% (by mass) of the fine aggregate. The effect of the concentrate on the mechanical performance of the mortars at the high temperature (up to 600 °C) was also investigated. The IOC is a neutral material, not affecting chemically the process of cement hydration. The addition of IOC slightly improves the strength of the cement mortars (by 5% to 10%). In the case of the larger amount (20–30%) of the addition, the use of superplasticizer is necessary. The IOC significantly improves the high temperature resistance of the cement mortars (300 °C). The cement mortars containing 30% of the IOC addition keep 80% of the initial flexural and compressive strength when exposed to the temperature 450 °C.

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“…To design an effective shielding, a precise knowledge of the properties of shielding materials such as radiation attenuation coefficient is needed . Some studies showed that using material with high atomic number and high density (such as iron, barite, and lead) affect significantly the shielding effect against X‐rays . These materials work very well in combination with concrete, which intrinsically possesses the ability to attenuate radiation.…”

Section: Introductionmentioning

confidence: 99%

“…2 Some studies showed that using material with high atomic number and high density (such as iron, barite, and lead) affect significantly the shielding effect against X-rays. [3][4][5][6][7][8][9][10][11][12][13] These materials work very well in combination with concrete, which intrinsically possesses the ability to attenuate radiation. However, heavy aggregates can lead segregation and bleeding effects, with a great expenditure of energy during the vibration and compaction.…”

Section: Introductionmentioning

confidence: 99%

Design of bismuth oxide nanoparticles as lightweight aggregate in cement composites against X‐rays

Restuccia

Favero

Jagdale

et al. 2019

Mat Design Process Comm

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Nowadays, heavy concrete is becoming one of the most commonly used materials against X‐ray radiation (medical or nuclear). This type of concrete is enriched by heavy aggregates with high density and/or high atomic number such as magnetite or barite, which allow to obtain an appreciable shielding effect but may present problems related to high manufacturing costs. Moreover, very heavy concretes can be achieved with iron or lead shot as aggregate, but in this case, the big problem is related to the toxicity and harmful for human health. In this research work, bismuth—a cheap, nontoxic, and biocompatible element, characterized by having a high atomic number Z (Z = 83)—has been used as additive in cement mixture, with the purpose to indagate its effectiveness as shielding agent and to analyze the mechanical strength response.

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Investigation of gamma-ray shielding properties of concrete containing different percentages of lead

Cited by 74 publications

References 10 publications

Effects of gamma irradiation on some chemicals using an NaI (Tl) detector

Effects of gamma irradiation on some chemicals using an NaI (Tl) detector

Effects of Elevated Temperatures on the Properties of Cement Mortars with the Iron Oxides Concentrate

Design of bismuth oxide nanoparticles as lightweight aggregate in cement composites against X‐rays

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