Experimental Investigation of Clay Fly Ash Bricks for Gamma-Ray Shielding

Mann, Harjinder Singh; Brar, G. S.; Mann, Kulwinder Singh; Mudahar, Gurmel S.

doi:10.1016/j.net.2016.04.001

Cited by 90 publications

(26 citation statements)

References 22 publications

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“…Using the Origin 7.5 program (demo), the net area counts were determined via the least-squares fitting method. Furthermore, the experimental uncertainties in the measurements were calculated according to the following equation [19,20]:…”

Section: Materials and Methods 21 Experimental Detailsmentioning

confidence: 99%

Comparison of experimental and theoretical radiation shielding parameters of several environmentally friendly materials

et al. 2019

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In this study, the gamma radiation shielding features of several environmentally friendly materials were investigated. For this purpose, several attenuation parameters, such as the mass attenuation coefficient (l=q), radiation protection efficiency (RPE), and effective atomic number (Z eff) were determined experimentally and compared with numerical data obtained using WinXCom software. In the measurements, the emitted gamma photons were counted by a gamma spectrometer equipped with an HPGe detector using 22 Na, 54 Mn, 57 Co, 60 Co, 133 Ba, and 137 Cs radioactive point sources in the energy region of 81-1333 keV. The obtained results indicate that the l=q and RPE values of the samples decrease with an increase in photon energy. The experimental values are in good agreement with those obtained using WinXCom software. The RPE and Z eff results show that among the studied materials, the NaY 0.77 Yb 0.20 Er 0.03 F 4 sample has the best gamma radiation shielding effectiveness.

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Section: Materials and Methods 21 Experimental Detailsmentioning

confidence: 99%

Comparison of experimental and theoretical radiation shielding parameters of several environmentally friendly materials

et al. 2019

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“…Regarding the particle size distribution results, the particle size near 1 µm seems to be more influential for the overall investigated properties than other mean particle size curves. So, thanks to the incorporation of fly ash in the clay, the finer particles of fly ash fill the pores of the clay and contribute to the reduction of empty spaces and increase the strength of the mixture [44].…”

Section: Discussionmentioning

confidence: 99%

3D printing of kaolinite clay with small additions of lime, fly ash and talc ceramic powders

Revelo

Colorado

2019

PAC

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Direct ink writing technique, an extrusion based additive manufacturing process, has been used to fabricate kaolinite clay based-ceramics with several inexpensive ceramic powders: lime, fly ash and talc. All the above materials are commonly used in the traditional ceramics industry, in both small and large industries, and therefore available worldwide. This research shows the simplicity of the process feasible not only for companies but also for individual users. The samples were fabricated with water to clay ratios (W/C) between 0.68 and 0.72. Additives were tested in 3.0, 5.0 and 7.0 wt.% with respect to the clay contents, although 3 wt.% of additives worked best. Cylindrical samples were fabricated with 20 mm in diameter and 20 mm in height in order to test their compressive strength and density. Measurement samples were previously cured for three days at room temperature and then exposed to 1100°C for 1 h. The powdered additives and their corresponding mixtures with clay were characterized with scanning electron microscopy, X-ray fluorescence and X-ray diffraction techniques. Results showed that samples with 0.70 W/C ratio and using fly ash as an additive were the best in terms of workability, mechanical properties and surface finishing.

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“…Radioactive isotopes were used in a lot of fields such as nuclear research, medicine, industry and agriculture. Using these radioactive isotopes can cause dangerous damage of the workers and exposures tissues (Gençel et al, 2010;Mann et al, 2016). For radiation protection inside houses, factories and hospitals, the building materials used must provide adequate protection for workers at a reasonable cost (Bashter et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

Aggregates grain size and press rate dependence of the shielding parameters for some concretes

Mahmoud

Ташлыков

Wakil

et al. 2020

Progress in Nuclear Energy

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This study points to evaluate the effect of crushed basalt grain size and the press rate on gamma ray shielding properties for some concretes. Nine different concretes were made up of 75% basalt, 25% Portland cement and drops of sodium meta silicate. Three concretes were performed with an average grain size varied between 25 and 107 μm. The other six concretes were performed under different press rate varied between 1.01 and 142.76 kg/ cm 2 using a hydraulic press. The mass attenuation coefficient (μ m ) of the prepared concretes was measured using the narrow beam transmission method using a hyper pure germanium detector at gamma ray energies 661.6,

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Experimental Investigation of Clay Fly Ash Bricks for Gamma-Ray Shielding

Cited by 90 publications

References 22 publications

Comparison of experimental and theoretical radiation shielding parameters of several environmentally friendly materials

Comparison of experimental and theoretical radiation shielding parameters of several environmentally friendly materials

3D printing of kaolinite clay with small additions of lime, fly ash and talc ceramic powders

Aggregates grain size and press rate dependence of the shielding parameters for some concretes

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