Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Potential of biochar reinforced concrete as neutron shielding material

  • Received : 2022.02.04
  • Accepted : 2022.03.22
  • Published : 2022.09.25
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Abstract

Biochar is a novel carbon based material derived from waste that shows promising properties for several applications. In this paper we investigate its potential use as a low cost, greener alternative to commonly used aggregates employed to enhance the neutron shielding performance of concrete. Monte Carlo simulations are performed with the PHITS code to estimate the neutron attenuation of blank and biochar-reinforced concrete exposed to high energy neutrons. We find that the shielding performance of concrete with 15% biochar is comparable with commonly used materials such as Boron Carbide at 20% and exceeds that of Basalt fibers with the same concentration, making these composites an interesting greener alternative to current solutions. A combination of biochar and heavier fillers also show extremely promising performance.

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References

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