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Barite radiation-proof concrete

A barite and radiation protection technology, applied in the field of building materials, can solve the problems of easy cracks, affect concrete strength, affect concrete radiation protection ability, etc., to avoid cracks, save the amount of cement, and help heat dissipation Effect

Active Publication Date: 2018-11-13
北京建工新型建材有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The density of barite is high, which can increase the density of concrete, but the texture of barite is relatively brittle, and a suitable mix ratio is required to ensure the strength of concrete. The higher the strength of concrete, the higher the heat of hydration, which is prone to cracks. It not only affects the strength of the concrete, but also affects the radiation resistance of the concrete

Method used

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  • Barite radiation-proof concrete

Examples

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Effect test

preparation example 1

[0035] (1) by comprising the compound of 4-butylaminobenzoic acid nine polyethylene glycol monomethyl ether ester-maleic anhydride-lignosulfonate calcium polymer graft copolymer 15Kg, polyethylene glycol 15Kg and acrylic acid 2.5Kg React in the presence of water at 80°C for 5 hours and dry to obtain mixture A;

[0036](2) React the mixture comprising the mixture A of step (1), 2.5Kg of acrylic acid and 15Kg of water glass in the presence of water at 80°C for 4 hours, and cool to 40°C to obtain mixture B;

preparation example 2

[0038] (1) by comprising the compound of 4-butylaminobenzoic acid nine polyethylene glycol monomethyl ether ester-maleic anhydride-calcium lignosulfonate polymer graft copolymer 18Kg, Polyethylene Glycol 8Kg and acrylic acid 3.5Kg React in the presence of water at 90°C for 6 hours and dry to obtain mixture A;

[0039] (2) React the mixture comprising the mixture A of step (1), 3.5Kg of acrylic acid and 18Kg of water glass in the presence of water at 85°C for 5 hours, and cool down to 45°C to obtain mixture B;

preparation example 3

[0041] (1) by the mixture comprising 4-butylaminobenzoic acid nine polyethylene glycol monomethyl ether ester-maleic anhydride-lignosulfonate calcium polymer graft copolymer 20Kg, Polyethylene Glycol 10Kg and acrylic acid 5Kg React in the presence of water for 7 hours at 99°C and dry to obtain mixture A;

[0042] (2) React the mixture comprising the mixture A of step (1), 3.5Kg of acrylic acid and 18Kg of water glass in the presence of water at 90°C for 6 hours, and cool down to 50°C to obtain mixture B;

[0043] (3) Add 3Kg of defoamer to the mixture B of step (2), and use sodium bicarbonate to adjust the pH value to 9.0 to obtain a water reducer; Preparation example 1 of retarder: mix sodium gluconate 5Kg, ( L+)-10Kg of tartaric acid, 2Kg of sodium citrate, 2Kg of maleic anhydride-acrylic acid copolymer, 10Kg of pumice powder, and 0.3Kg of calcium sugar are uniformly mixed.

[0044] Preparation example 2 of retarder: 6Kg of sodium gluconate, 12Kg of (L+)-tartaric acid, 3Kg ...

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Abstract

The invention discloses barite radiation-proof concrete and belongs to the field of a building material. The barite radiation-proof concrete comprises the following components in parts by weight: 207to 255 parts of cement, 2360 to 2700 parts of heavy aggregate, 85 to 105 parts of lead-containing glass, 360 to 480 parts of iron ore sand, 97 to 103 parts of coal ash, 62 to 79 parts of ore powder, 20 to 40 parts of glass fiber, 3.88 to 4.46 parts of a water reducer and 1.22 to 2.33 parts of a retarder, wherein the water-adhesive ratio is 0.40 to 0.45. The barite radiation-proof concrete has theadvantages of high strength, insusceptibility to crack and high radiation-proof performance.

Description

technical field [0001] The invention relates to the field of building materials, more specifically, it relates to a barite anti-radiation concrete and a construction method thereof. Background technique [0002] Barite is a non-metallic mineral product with barium sulfate as the main component. Pure barite is white and shiny. Barite is chemically stable, insoluble in water and hydrochloric acid, non-magnetic and toxic, and has the ability to absorb X-rays. performance. [0003] In modern society, due to the development of the nuclear industry and the application of radioisotopes in industry, medical treatment and scientific research laboratories, how to shield radiation to protect workers from harm has become an urgent problem to be solved. Most materials attenuate these high-energy, high-frequency electromagnetic waves mainly according to the attenuation efficiency of the Compton scattering effect, which is roughly proportional to the mass or density of the material on the...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00258C04B2201/20C04B2201/50C04B14/06C04B14/368C04B14/22C04B14/36C04B18/08C04B18/142C04B14/42C04B2103/302C04B24/06C04B24/2664C04B14/02
Inventor 曹长柱王杰之于吉明王军孔凡敏
Owner 北京建工新型建材有限责任公司