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A high-temperature-resistant and radiation-proof boron-containing calcium strontium aluminophosphate cement clinker

A cement clinker and anti-radiation technology, which is applied in the field of special cement, can solve the problems of unreasonable utilization, pollution of the environment, and large land, and achieve the effects of avoiding heat accumulation, high density, and strong absorption and shielding effect

Active Publication Date: 2021-11-02
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These strontium slags have been discarded in the slag yard for a long time and cannot be rationally utilized. It not only occupies a large amount of land, but also easily melts into streams and rivers under the action of natural wind and rain, polluting the environment

Method used

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  • A high-temperature-resistant and radiation-proof boron-containing calcium strontium aluminophosphate cement clinker
  • A high-temperature-resistant and radiation-proof boron-containing calcium strontium aluminophosphate cement clinker
  • A high-temperature-resistant and radiation-proof boron-containing calcium strontium aluminophosphate cement clinker

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Experimental program
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Embodiment

[0016] First, the raw materials are prepared according to different oxide ratios, and the resulting fine powder is mixed evenly after crushing and grinding. ) calcined and kept for 2 hours, you can get 4 different boron-containing calcium strontium aluminophosphate cement clinkers. The oxide ratio of the sample raw materials required by each group is shown in Table 1:

[0017] Table 1 raw material composition (proportioning design is carried out with the quality of oxide)

[0018]

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Abstract

The invention discloses a high-temperature-resistant and radiation-proof boron-containing calcium strontium aluminophosphate cement clinker. The mineral phase composition of the cement clinker is: 32-55 percent of calcium strontium aluminophosphate, 20-30 percent of calcium strontium aluminate, Calcium aluminate 15-20%, dicalcium ferrite 5-15% and calcium borate 5-8%; the corresponding oxide composition is as follows: SrO 10-25%, Al 2 o 3 30-41%, CaO 20-38%, P 2 o 5 5-8%, Fe 2 o 3 4~13%, B 2 o 3 3-8%. The clinker calcination temperature is 1390-1450°C. The anti-radiation calcium strontium aluminophosphate cement clinker of the present invention can not only shield and protect α, β, γ, and X-rays produced in nuclear power engineering, but also absorb neutron radiation in protecting nuclear power radiation, and has excellent radiation protection performance. At the same time, industrial wastes such as strontium slag are used to achieve the purpose of solid waste utilization and environmental protection.

Description

technical field [0001] The invention relates to a radiation-proof boron-containing calcium strontium aluminophosphate cement clinker capable of high temperature and belongs to the field of special cement. Background technique [0002] As we all know, energy directly restricts economic development. With the development of modern science and technology, nuclear technology has also been developed rapidly, and is widely used in military, medical, daily life and other fields; today's world energy has entered the age of nuclear energy. Nuclear energy is not only the most mature, safe, economical and clean new energy, but also the most potential and promising new energy. In today's world where energy is increasingly scarce, despite the occurrence of nuclear power plant accidents, countries all over the world still insist that the development and utilization of nuclear energy is the only way to solve the problem of energy shortage, and has important strategic significance for econo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B12/02
Inventor 王守德毕海峰李树森黄永波芦令超程新
Owner UNIV OF JINAN