Barium aluminate cement-based radiation shielding concrete and preparation method thereof

Abstract

The invention belongs to the field of concrete, and particularly discloses barium aluminate cement-based radiation shielding concrete and a preparation method thereof. The concrete is prepared from the following materials in parts by weight: 300 to 350 parts of cement, 900 to 1200 parts of fine aggregate, 1200 to 1500 parts of coarse aggregate, 10 to 20 parts of neutron absorbent, 0.4 to 0.6 partof a water reduction agent, and 140 to 160 parts of water. The prepared barium aluminate cement-based radiation shielding concrete has the characteristics that the strength requirement of C40 concreteis met, the segregation is avoided, the collapsing degree and extendibility are good, the volume weight is 2900 to 2950kg.m<3>, and the volume weight requirements of the radiation shielding concreteare met; the working property is excellent, the anti-radiation property is good, the cost is low, the fire-refractory property is realized, and the like; the problems of easiness in segregation, poorhomogenizing property, poor construction property and the like in the traditional radiation shielding concrete, and the problem of application difficulty in fire-resistant environments are solved.

Description

technical field [0001] The invention belongs to the field of concrete, and specifically discloses a barium aluminate cement-based radiation-proof concrete and a preparation method thereof. Background technique [0002] Radiation exists throughout the universe and can be divided into natural radiation and artificial radiation. Natural radiation mainly comes from cosmic rays, etc. Artificial radiation mainly comes from α, β, γ, X and neutron streams and other rays produced in the process of applying nuclear technology in nuclear power, military, education, medical treatment, scientific research and other fields. After being exposed to these rays for a long time, it is easy to induce cancer, leukemia, thyroid dysfunction, infertility, birth defects and other diseases, and it is also easy to induce gene mutations in other animals or plants. In order to prevent radiation from harming human beings, when building buildings with radiation sources, it is generally necessary to insta...

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Problems solved by technology

The annual discharge of copper slag in my country is huge, and most of them are in the state of accumulation and storage. At present, the stock of copper slag in my country has already exceeded 50 million tons, which not only occupies land, pollutes the environment, but also causes a huge waste of resources.

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