Modelling of gamma-ray radiation shielding properties for different compositions of basalt-boron fiber reinforced concrete

Objectives

The objective of this WP is to study the influence of basalt-boron fiber to gamma-ray radiation shielding properties of concrete with different fiber dosages, different boron content in basalt fiber and different boron enrichment in basalt fiber. The wide range of fiber dosages, different boron content in basalt fiber and different boron enrichment in basalt fiber will be modelled with help of Serpent Monte Carlo code and WinXCom software. Also, the impact of different heavy aggregates (like barite, MagnaDense etc) to the gamma-ray radiation shielding properties will be investigated.

Expected results and deliverables:

  1. Models for gamma-ray radiation shielding calculations with different source energy spectra.
  2. Established radiation shielding properties for modelled composites as a function of fiber dosage, boron content in basalt fiber, boron enrichment in basalt fiber and heavy aggregate.
  3. Recommendations for optimum content of proposed composite material from viewpoint of industrial implementation.

Current status:

  1. Models for gamma-ray radiation shielding calculations with different source energy spectra have prepared in Serpent code.
  2. Established radiation shielding properties for modelled composites as a function of fiber dosage, boron content in basalt fiber, boron enrichment in basalt fiber and heavy aggregate have obtained.
  3. Recommendations for optimum content of proposed composite material from viewpoint of industrial implementation have prepared.

Results this research were printed in the journal «Nuclear and Radiation Safety» , 1(77), 52 – 58, 2018

The paper presents a new composite material for radiation protection based on extra-heavy concrete reinforced by basalt fiber. Two types of extra-heavy concrete were used for presented paper. The main gamma-ray attenuation coefficients such as mean atomic number, mean atomic mass, mean electron density, effective atomic number, effective electron density, Murty effective atomic number were analyzed with help of WinXCom software. It has been shown that the addition of basalt fiber to concrete does not impair its gamma-ray radiation shielding properties. With increasing the basalt fiber dosage in concrete, the radiation properties against gamma radiation are improved.