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a decorative cement

A technology of cement and portland cement, which is applied in the field of cement and decorative cement, can solve the problems of cracking and alkali return in decorative cement, and achieve the effects of reducing the risk of cracking, avoiding cracking and falling off, and reducing moisture growth

Active Publication Date: 2020-04-24
JIAHUA SPECIAL CEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the technical problem that the decorative cement in the prior art is prone to cracking and alkali return, and provides a new decorative cement, which can prevent cracking and alkali return through the selection of raw materials and specific proportion design. , and has good construction properties such as ease and adhesion

Method used

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  • a decorative cement

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Embodiment 1

[0030] A decorative cement, consisting of the following raw materials in parts by weight: Portland cement 42.5 51 parts, expansion agent 4 parts, metakaolin 8 parts, silica fume 6 parts, whiskers 1 part, redispersible latex powder 8 parts 1.5 parts of water reducer, 0.37 parts of defoamer, 0.13 parts of cellulose ether, 20 parts of heavy calcium.

[0031] In this embodiment, the expansion agent is a sulphoaluminate 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 average particle diameter of heavy calcium is 1 μm.

[0036] In this embodiment, the water reducer is a powdered polycarboxylate water ...

Embodiment 2

[0039] A decorative cement, consisting of the following raw materials in parts by weight: 42.5 to 55 parts of Portland cement, 2 parts of expansion agent, 9.9 parts of metakaolin, 3 parts of silica fume, 2 parts of whiskers, and 10 parts of redispersible latex powder 1 part, 2 parts of water reducer, 1 part of defoamer, 0.1 part of cellulose ether, 15 parts of heavy calcium.

[0040] In this embodiment, the expansion agent is a sulphoaluminate 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 8 um and an average length of 200 um.

[0044] In this embodiment, the average particle diameter of heavy calcium is 10 μm.

[0045] In this embodiment, the water reducer is a...

Embodiment 3

[0048] A decorative cement, consisting of the following raw materials in parts by weight: 52.5 to 45 parts of Portland cement, 4 parts of expansion agent, 8.88 parts of metakaolin, 6 parts of silica fume, 3 parts of whiskers, and 10 parts of redispersible latex powder 2 parts, 2 parts of water reducer, 1 part of defoamer, 0.12 parts of cellulose ether, 20 parts of heavy calcium.

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

[0050] In this embodiment, the redispersible latex powder is a redispersible latex powder with a glass transition temperature of 5°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 6 um and an average length of 100 um.

[0053] In this embodiment, the average particle diameter of heavy calcium is 5 μm.

[0054] In this embodiment, the water reducer i...

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Abstract

The invention discloses decorative cement and belongs to the technical field of building materials. The decorative cement comprises, by weight, 45 to 60 parts of Portland cement, 0 to 4 parts of an expander, 4 to 10 parts of metakaolin, 2 to 6 parts of silicon powder, 1 to 3 parts of whiskers, 5 to 10 parts of redispersible latex powder, 1 to 2 parts of a water reducing agent, 0.3 to 1.0 part of adefoaming agent, 0.1 to 0.15 parts of cellulose ether and 15 to 20 parts of ground calcium carbonate. The decorative cement prevents alkali crystallization and cracking and has good workability and corrosion resistance.

Description

technical field [0001] The invention relates to a kind of cement, in particular to a kind of 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., 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 boards, e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04
Inventor 王宁
Owner JIAHUA SPECIAL CEMENT
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