A kind of anti-radiation decorative cement

A radiation protection and cement technology, applied in the field of building materials, can solve problems such as cracking and alkali return of decorative cement, achieve excellent radiation protection performance, reduce the risk of cracking, and avoid the effect of alkali return

CN107651893BActive Publication Date: 2020-07-10JIAHUA SPECIAL CEMENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-07-10

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Abstract

The invention discloses a radiation-proof decoration cement, and belongs to the technical field of building materials. The decoration cement comprises, by weight, 40-50 parts of radiation-proof cement, 0-4 parts of an expanding agent, 4-10 parts of metakaolin, 2-6 parts of silicon powder, 1-3 parts of whiskers, 5-10 parts of redispersible latex powder, 1-2 parts of a water reducer, 0.3-1.0 part ofan antifoaming agent, 0.1-0.15 part of cellulose ether and 25-30 parts of barite powder. The radiation-proof cement is one of barium cement, strontium cement and boron-containing cement. The radiation-proof decoration cement has the advantages of no alkali efflorescence or cracking problems, good workability, good corrosion resistance and very strong radiation resistance.
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Description

Technical field

[0001] The invention relates to a cement, in particular to a radiation-proof decorative cement, which belongs to the technical field of building materials. Background technique

[0002] Industrial buildings are mostly concrete structures, steel-concrete structures, steel structures, etc. The outer wall materials may be steel plates, wood boards, or calcium-silica boards. In order to be more harmoniously consistent with the external environment, the blue gray of the cement itself can be better integrated The environment is more in line with the aesthetic style of modern people, and more and more fair-faced concrete construction industries have confirmed this. The existing decorative cement includes white cement and colored cement, which are mainly used in construction projects. It can be formulated into colored mortar or made various colored and white concrete. Compared with natural decorative materials, it has the advantages of convenient use, easy color adjustm...

Examples

Embodiment 1

[0030] A radiation-proof decorative cement composed of the following raw materials in parts by weight: 50 parts of barium cement, 4 parts of expansion agent, 4 parts of metakaolin, 6 parts of silica fume, 1 part of whiskers, 8 parts of redispersible latex powder , 1.5 parts of water reducing agent, 0.37 parts of defoaming agent, 0.13 parts of cellulose ether, 25 parts of barite powder.

[0031] In this embodiment, the expansion agent is a sulfoaluminate expansion agent.

[0032] In this embodiment, the redispersible latex powder is a redispersible latex powder with a glass transition temperature of -3°C.

[0033] In this embodiment, the cellulose ether is hydroxypropyl methylcellulose with a viscosity of 300 mPa.s.

[0034] In this embodiment, the whiskers are calcium sulfate whiskers, with an average diameter of 1 um and an average length of 30 um.

[0035] In this embodiment, the barium sulfate content of the barite powder is greater than 90%, and the average particle size is 1 μm.

...

Embodiment 2

[0039] A radiation-proof decorative cement composed of the following raw materials in parts by weight: 40 parts barium cement, 2 parts expansion agent, 9.9 parts metakaolin, 3 parts silica fume, 2 parts whiskers, 10 parts redispersible latex powder , 2 parts of water reducing agent, 1 part of defoamer, 0.1 part of cellulose ether, 30 parts of barite powder.

[0040] In this embodiment, the expansion agent is a sulfoaluminate expansion agent.

[0041] In this embodiment, the redispersible latex powder is a redispersible latex powder with a glass transition temperature of 0°C.

[0042] In this embodiment, the cellulose ether is hydroxypropyl methylcellulose with a viscosity of 400 mPa.s.

[0043] In this embodiment, the whiskers are calcium sulfate whiskers with an average diameter of 8um and an average length of 200um.

[0044] In this embodiment, the barium sulfate content of the barite powder is greater than 90%, and the average particle size is 10 μm.

[0045] In this embodiment, the ...

Embodiment 3

[0048] A radiation-proof decorative cement composed of the following raw materials in parts by weight: 45 parts of barium cement, 4 parts of expansion agent, 6.88 parts of metakaolin, 3 parts of silica fume, 3 parts of whiskers, and 10 parts of redispersible latex powder , 2 parts of water reducing agent, 1 part of defoamer, 0.12 parts of cellulose ether, 25 parts of barite powder.

[0049] In this embodiment, the expansion agent is a sulfoaluminate expansion agent.

[0050] In this embodiment, the redispersible latex powder is a redispersible latex powder with a glass transition temperature of 3°C.

[0051] In this embodiment, the cellulose ether is hydroxypropyl methylcellulose with a viscosity of 500 mPa.s.

[0052] In this embodiment, the whiskers are calcium sulfate whiskers with an average diameter of 6um and an average length of 100um.

[0053] In this embodiment, the barium sulfate content of the barite powder is greater than 90%, and the average particle size is 5 μm.

[0054] ...