High-performance radiation-shielding concrete

Abstract

The invention relates to a high-performance nuclear radiation-shielding concrete material which is mixed by concrete, aggregate, water and the like. The radiation-shielding concrete takes the crystal water-enriched olivinite as the aggregate, so that the material is higher in crystal water content (the moisture content is 6-14%), thereby being better in neutron shielding capability. The shielding concrete for shielding the neutron ray, the shielding concrete for shielding the gamma ray, and the shielding concrete for shielding the neutron ray and the gamma ray can be prepared by changing the density of the radiation-shielding concrete. The high-performance radiation-shielding concrete contains a mass of light nucleus substances, so that the material has good characteristic in the aspect of the neutron shielding characteristic. Aiming at the problem that the current common concrete package material is heavy in weight, small in volume, and inconvenient for long-distance transportation, the concrete package material is prepared due to the characteristic that the material is enriched in the crystal water, so that the aims of weight reducing and volume enlarging can be achieved.

Description

technical field [0001] The invention belongs to the technical field of building materials, and relates to high-performance radiation shielding concrete materials and solidification treatment of medium and low radioactive nuclear waste. Background technique [0002] In order to prevent radiation from harming the human body, a shield (protector) must be installed when building a building with a radiation source. Cement concrete is currently the most widely used radiation protection material, mainly used to make the inner shell of nuclear reactors and solidify nuclear waste. [0003] Radiation-resistant concrete generally prevents α, β, γ, X-rays and neutron flow. Due to the low penetrating ability of α and β rays, they are easily absorbed. The most important thing in the design of radiation-proof concrete is to consider the shielding of gamma rays and neutron rays. Gamma rays have strong penetrating ability. Usually, when they pass through high-density building materials, t...

AI Technical Summary

Problems solved by technology

However, with the advancement of science and technology and the development of concrete technology, the deterioration of the use environment and the complexity of the protective building structure, there are still many problems that have not been studied or systematically studied in radiation-proof concrete, and these problems are directly related to nuclear technology. The further development of nuclear energy and the wide application of nuclear energy

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