Measurements of activation reaction rates in transverse shielding concrete exposed to the secondary particle field produced by intermediate energy heavy ions on an iron target

Ogawa, Tatsuhiko; Morev, M. N.; Iimoto, Takeshi; Kosako, Toshiso

doi:10.1016/j.nimb.2011.11.008

Cited by 1 publication

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References 13 publications

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“…Rocks with high-density minerals are the most preferred for heavy concrete aggregate [1,2,6]. Absorption properties of concretes made by barite, magnetite, serpentine, and hematite aggregates are explored in the literature [2,4,[6][7][8][9][10][11]. The critical challenge in the mixtures of HWCs using aggregates with high unit weight is determining the water/cement (w/c) ratio.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and radiation attenuation properties of conventional and heavy concrete with diverse aggregate and water/cement ratios

2022

JCE

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This paper presents the results of comprehensive laboratory work conducted for investigating the mechanical and radiation attenuation characteristics of heavyweight concrete produced with pyrite, chromium, and magnetite aggregates and normal weight concretes produced with three different water/ cement (w/c) ratios. Various experiments were conducted to determine the compressive strengths, ultrasound transmission velocities, experimental elasticity modules, and mass attenuation coefficients of these concretes. Heavy and normal weight concretes exhibited similar behaviour in terms of compressive strength and elasticity modules. In heavyweight concretes, with increased w/c ratios (by keeping the amount of water constant and decreasing the amount of cement), the corresponding density increased due to the increase in the amount of high-density aggregates rather than cement in the composition of concrete. Thus, heavyweight concretes produced with a high w/c ratio and low strength can absorb more X-rays. Mass attenuation coefficients converge in heavy and normal weight concretes with different densities at high energy levels.

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Section: Introductionmentioning

confidence: 99%

Mechanical and radiation attenuation properties of conventional and heavy concrete with diverse aggregate and water/cement ratios

2022

JCE

View full text Add to dashboard Cite

show abstract

Measurements of activation reaction rates in transverse shielding concrete exposed to the secondary particle field produced by intermediate energy heavy ions on an iron target

Cited by 1 publication

References 13 publications

Mechanical and radiation attenuation properties of conventional and heavy concrete with diverse aggregate and water/cement ratios

Mechanical and radiation attenuation properties of conventional and heavy concrete with diverse aggregate and water/cement ratios

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