Influence of heavyweight aggregates on the physico-mechanical and radiation attenuation properties of serpentine-based concrete

Evaluation of the effects of bismuth oxide (Bi2O3) micro and nanoparticles on the mechanical, microstructural and γ-ray/neutron shielding properties of Portland cement pastes

“…Energy-dependent effective atomic numbers, on the other hand, provide reliable values. The energy dependence of Zeff for photon interaction (ZPI, eff) and photon energy absorption (ZEA, eff) are given by Zayed et al [61] (Eq. 10):…”

Autoclave-free ultra-early strength concrete preparation using an early strength agent and microstructure properties

“…The properties of ITZ were much important for concrete. [40][41][42] The microhardness at both interfacial transition zone (ITZ) and matrix of concrete at different ages was tested, and the results are shown in Fig. 6.…”

Preparation and Comprehensive Properties of a High-Radiation-Shielding UHPC by Using Magnetite Fine Aggregate

“…Nuclear shielding technology is also eliciting public attention. Generally, gamma and neutron rays are the most destructive radiation types released by nuclear explosion or radioactive waste [ 5 , 6 , 7 ]. The danger of these radiation types primarily originates from their high penetration and ionization energy, which can destroy normal human cells and lead to gene mutation.…”

“…The interaction modes of a ray and matter include a photoelectric effect, Compton scattering, and an electron pair effect [ 2 , 6 ]. The principle of radiation shielding can be simply understood as when a ray passes through an antiradiation material, part of the energy of the incident photon is absorbed by the antiradiation material, the original photon is scattered, and its motion direction and energy change, thus the radiation energy is attenuated.…”