Radiation transmission of concrete including boron waste for 59.54 and 80.99keV gamma rays

Demir, Demet; Keleş, Gürbüz

doi:10.1016/j.nimb.2005.11.139

Cited by 61 publications

(36 citation statements)

References 9 publications

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“…On the other hand, Demir et al [6] have prepared the concrete specimens including borogypsum and colemanite concentrator wastes. They tested the differences in gamma rays passing energies for normal and boron waste (BW) additive concretes specimens.…”

Section: Boron Compounds (Bc) Such As Boric Acid (B[oh]mentioning

confidence: 99%

The Effect of Boron Compound to Cement Hydration and Controllability of this Effect

Davraz

2015

Acta Phys. Pol. A

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The use of boron compounds as composites of cementitious, except for the limited usage conditions like setting retarder has not become widespread because of the hardening and the related problems. In this study, the effects of the boron compounds into hydration process of the different cement types and controllability of these effects was investigated. Portland cement, boron modified active belite cement, and calcium aluminate cement were used in the mortar mixtures as binder material. Except for the control mixture, boric acid (BA) was used at the ratios of 0.25-1.00% of weight of cement in mortar mixtures with Portland cement. Setting times dependent on pH, EC and T changes of fresh mortars were measured. With increasing BA concentration, setting times of the mortars rather increased, pH, electrical conductivity, and T values of the mortars significantly reduced. To suppress the affect of BA on the hydration process, the two various stabilizers were used in the mortars, setting times, pH, electrical conductivity, and T values of these mortars were measured again. As a result, the optimum workability times and the parameters of the hydration reaction taking into account, the most suitable type and usage ratio of stabilizer were determined for mortars with BA.

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Section: Boron Compounds (Bc) Such As Boric Acid (B[oh]mentioning

confidence: 99%

The Effect of Boron Compound to Cement Hydration and Controllability of this Effect

Davraz

2015

Acta Phys. Pol. A

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“…The photon interaction with the matter depends on the incoming photon energy and the density of the shielding material [3,4]. A good shielding material should have high absorption cross-section for radiation and at the same time irradiation effects on its mechanical properties should be small [5]. The concrete shielding properties may vary depending on the material components of the concrete.…”

Section: Introductionmentioning

confidence: 99%

“…Addition of metal particles to concrete to enhance its density can be used for gamma and X-ray shielding purposes. There are many different theoretical and experimental studies working on improvement of concrete properties to suit the shielding requirements by means of photon attenuation coefficient [2,3,[5][6][7][8][9]. X-rays have three principal uses as diagnostic, therapeutic and in non medical radiographic devices.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Shielding Performance of Concretes Produced with Iron Fillings Using Betatron X-Ray Radiography

et al. 2016

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One of the most widely used structural materials in radiation shielding is concrete. Addition of metal particulates to concrete to enhance its density can be used for gamma and X-ray shielding purposes. In this study radiation shielding performance of concrete containing different amounts of iron filling were evaluated using Betatron X-ray radiation source. For this purpose concretes were produced by adding iron filling in the ratios of 0%, 10%, 20%, 30% (in weight) to the cement. CIT/7.5 Betatron source which is a compact, circular electron accelerator, generating directional X-ray beam, was used in this study. Experiments were performed by using conventional radiography test. The results were compared with results for normal concrete. It was observed that the film density differences between the iron filling and normal concrete are in the range of about 10-60%.

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“…Boron carbide is frequently used as a shielding material, either alone or combined with other material for radiation shielding [6]. B 4 C is used extensively in nuclear reactors as a neutron absorber [4] and as a constituent material of neutron shields because of its high absorption of neutrons [7]. Due to its many versatile properties such as high melting point, low density, low thermal conductivity and high neutron absorption efficiency, B 4 C becomes an attractive absorber material [4] [ 8].…”

Section: Introductionmentioning

confidence: 99%

Preliminary study of neutron absorption by concrete with boron carbide addition

Abdullah

Ariffin

Hamid

et al. 2014

AIP Conference Proceedings

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New shielding material development for compact accelerator-driven neutron source AIP Advances 7, 045213 (2017) . Concrete has become a conventional material in construction of nuclear reactor due to its properties like safety and low cost. Boron carbide was added as additives in the concrete construction as it has a good neutron absorption property. The sample preparation for concrete was produced with different weight percent of boron carbide powder content. The neutron absorption rate of these samples was determined by using a fast neutron source of Americium-241/Be (Am-Be 241) and detection with a portable backscattering neutron detector. Concrete with 20 wt % of boron carbide shows the lowest count of neutron transmitted and this indicates the most neutrons have been absorbed by the concrete. Higher boron carbide content may affect the concrete strength and other properties.

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Radiation transmission of concrete including boron waste for 59.54 and 80.99keV gamma rays

Cited by 61 publications

References 9 publications

The Effect of Boron Compound to Cement Hydration and Controllability of this Effect

The Effect of Boron Compound to Cement Hydration and Controllability of this Effect

Investigation of Shielding Performance of Concretes Produced with Iron Fillings Using Betatron X-Ray Radiography

Preliminary study of neutron absorption by concrete with boron carbide addition

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