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High-performance cement and preparation method thereof

A high-performance, cement technology, applied in the field of cement preparation, can solve the problems of insufficient bonding strength, compressive strength and flexural strength of decorative cement, avoid cracking and shedding, improve strength, good corrosion resistance and construction performance Effect

Inactive Publication Date: 2020-09-08
重庆知翔科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a high-performance cement and a preparation method thereof to solve the problem of how to optimize the components and dosage based on the high-performance cement disclosed in the Chinese patent application document "A Decorative Cement (Publication No.: CN107628790B)". The bonding strength, compressive strength and flexural strength of decorative cement are not high enough

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  • High-performance cement and preparation method thereof
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Examples

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Embodiment 1

[0031] A high-performance cement, in parts by weight, comprising the following raw materials: 55 parts of Portland cement, 3 parts of expansion agent, 7 parts of metakaolin, 4 parts of silica fume, 2 parts of whiskers, and 7.5 parts of redispersible latex powder 1.5 parts of water reducer, 0.7 parts of defoamer, 0.12 parts of cellulose ether, 17.5 parts of heavy calcium, 9 parts of reduced iron, 3 parts of vinyl acetate copolymer wax, and 5 parts of barium chromate.

[0032] The Portland cement is ordinary Portland 42.5 cement; the expansion agent is a sulphoaluminate expansion agent.

[0033] The whiskers are calcium sulfate whiskers with an average diameter of 2 μm and an average length of 34 μm.

[0034] The redispersible latex powder is a redispersible latex powder with a glass transition temperature of -2 to 3°C.

[0035] The water reducer is a powdery polycarboxylate water reducer; the defoamer is a powdery polyether defoamer; the cellulose ether is hydroxypropylmethylc...

Embodiment 2

[0039] A high-performance cement, in parts by weight, comprising the following raw materials: 60 parts of Portland cement, 2 parts of expansion agent, 10 parts of metakaolin, 2 parts of silica fume, 3 parts of whiskers, 5 parts of redispersible latex powder 2 parts, water reducer 2 parts, defoamer 0.3 parts, cellulose ether 0.15 parts, heavy calcium 15 parts, reduced iron 10 parts, vinyl acetate copolymer wax 2 parts, barium chromate 6 parts.

[0040] The Portland cement is ordinary Portland 52.5 cement; the expansion agent is a sulphoaluminate expansion agent.

[0041] The whiskers are calcium sulfate whiskers with an average diameter of 6 μm and an average length of 95 μm.

[0042] The redispersible latex powder is a redispersible latex powder with a glass transition temperature of -1 to 2°C.

[0043] The water reducer is a powdery polycarboxylate water reducer; the defoamer is a powdery polyether defoamer; the cellulose ether is hydroxypropylmethylcellulose with a viscosit...

Embodiment 3

[0047] A high-performance cement, in parts by weight, comprising the following raw materials: 45 parts of Portland cement, 4 parts of expansion agent, 4 parts of metakaolin, 6 parts of silica fume, 1 part of whiskers, and 10 parts of redispersible latex powder 1 part of water reducer, 1.0 part of defoamer, 0.1 part of cellulose ether, 20 parts of heavy calcium, 6 parts of reduced iron, 4 parts of vinyl acetate copolymer wax, and 4 parts of barium chromate.

[0048] The Portland cement is high-magnesium low-heat cement; the expansion agent is a sulphoaluminate expansion agent.

[0049] The whiskers are calcium sulfate whiskers with an average diameter of 7 μm and an average length of 200 μm.

[0050] The redispersible latex powder is a redispersible latex powder with a glass transition temperature of -3 to 3°C.

[0051] The water reducer is a naphthalene-based high-efficiency water reducer; the defoamer is a powdery polyether defoamer; the cellulose ether is hydroxypropylmethy...

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Abstract

The invention discloses high-performance cement and a preparation method thereof, and belongs to the technical field of cement preparation. The high-performance cement is prepared from the following raw materials: Portland cement, an expanding agent, metakaolin, silicon powder, whiskers, redispersible latex powder, a water reducing agent, a defoaming agent, cellulose ether, ground calcium carbonate, reduced iron, vinyl acetate copolymer wax and barium chromate. The high-performance cement is prepared by the steps of drying, grinding, uniform mixing and the like. By improving the prior art forpreparing the cement, the bonding strength, the compressive strength and the flexural strength are remarkably improved, and the application requirements are met.

Description

technical field [0001] The invention belongs to the technical field of cement preparation, and in particular relates to a high-performance cement and a preparation method thereof. Background technique [0002] Industrial buildings are mostly concrete structures, steel-concrete structures, steel structures, etc., and their exterior wall materials may be steel plates, wood panels, or calcium-silicon panels. The environment is also more in line with the aesthetic style of modern people, which is confirmed by more and more fair-faced concrete construction industries. Existing decorative cements include white cement and colored cement, which are mainly used in construction projects. It can be formulated into colored mortar or made into various colored and white concrete. Compared with natural decorative materials, it has the advantages of convenient use, easy color adjustment and low price, but its adhesion is poor, and it is easy to fall off the surface of steel plates, wood b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/34
CPCC04B28/04C04B2201/10C04B2201/50C04B2111/343
Inventor 不公告发明人
Owner 重庆知翔科技有限公司
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