Boron-containing barium-rich sulphoaluminate cement clinker with negative temperature resistance and anti-radiation performance

Abstract

The invention discloses a boron-containing barium-rich sulphoaluminate cement clinker with negative temperature resistance and anti-radiation performance. The cement clinker comprises the following minerals by weight percentage: 48-62% of Ba-bearing calcium sulphoaluminate, 5-12% of dicalcium ferrite, 20-26% of dicalcium silicate, 8-15% of barium aluminate and 3-8% of calcium borate. The cement clinker provided by the invention has high strength, good durability, high compactness, low dry shrinkage rate, good anti-radiation performance and excellent frost resistance, and is suitable for the construction of nuclear power engineering structures such as a containment building, a shielded factory building, an auxiliary building and the like, which are likely to be damaged by freeze thawing incold highland regions such as world poles, northern China and the like.

Description

technical field [0001] The invention relates to a boron-containing barium-rich sulfoaluminate cement clinker for nuclear power projects in high-latitude regions with resistance to negative temperature and radiation protection, and belongs to the technical field of special cement preparation. Background technique [0002] Nuclear energy was developed during World War II to meet the needs of war. After the war, the peaceful use of nuclear energy has become the focus of research by many scientists. In 1951, the United States first tried nuclear reactor power generation at the Idaho National Reactor Test Center, which produced 100 kilowatts of nuclear power, which was the first step for mankind to use nuclear energy peacefully. In June 1954, the former Soviet Union built the world's first nuclear power plant to send electricity to the industrial grid in Yuebninsk, a suburb of Moscow, but the power was only 5000kW. In July 1961, the United States built the first commercial nucle...

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Problems solved by technology

Chinese patent CN201410243401.X discloses a radiation-proof cement and its preparation method. The cement can shield α, β, γ and X-rays, and also has a certain absorption effect on neutron radiation. However, the material belongs to Portland cement and cannot Suitable for construction in alpine regions

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