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Green and environment-friendly flexible facing brick capable of preventing alkali efflorescence and preparation method thereof

A flexible facing, green and environmentally friendly technology, applied in the field of building decoration materials

Active Publication Date: 2021-04-23
万卓(江苏)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] It can be seen that in the prior art, due to the use of cement in the decorative materials, the content of inorganic salts is relatively large. Therefore, the phenomenon of alkali return in the decorative materials is relatively common, thereby affecting the appearance of the wall. The present invention aims to prepare a green environmental protection anti-corrosion Alkali-returning flexible decorative brick and its preparation method, the decorative brick prepared by the method has high mechanical properties, and can effectively prevent the alkali-returning phenomenon

Method used

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  • Green and environment-friendly flexible facing brick capable of preventing alkali efflorescence and preparation method thereof
  • Green and environment-friendly flexible facing brick capable of preventing alkali efflorescence and preparation method thereof
  • Green and environment-friendly flexible facing brick capable of preventing alkali efflorescence and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0056] Preparation method of recycled concrete material

[0057] Step a, separating impurities such as steel bars in the concrete;

[0058] Step b, performing preliminary cyclic reciprocating crushing treatment on the concrete block through the crushing device; for the primary crushed material of the concrete block, the primary crushed concrete is obtained;

[0059] Step c, the concrete in step b is subjected to multi-point crushing treatment through a concrete recycling device, and the concrete block is crushed in two stages to obtain recycled concrete materials;

[0060] The particle size of the recycled concrete material is 200-400 mesh.

Embodiment 2

[0062] To prepare a green, environmentally friendly and anti-alkali-returning flexible facing brick, the ingredients are prepared according to the following raw materials: 20 parts of silicon acrylic emulsion, 4 parts of fluorine-containing polyacrylate elastic emulsion, 15 parts of cement, 30 parts of recycled concrete material, polyacrylamide 5 parts of gel, 1 part of inorganic pigment and 20 parts of water. Among them, the recycled concrete materials are all 400-mesh particle size.

[0063] The specific steps are as follows: 1) Add 30 parts of recycled concrete materials into the polyacrylamide hydrogel solution, and stir to make the hydrogel adsorb to the surface layer of the recycled concrete materials to obtain hydrogel modified recycled concrete materials.

[0064] 2) Weigh 15 parts of cement and 30 parts of modified recycled concrete material by weight, add them into a kneader, and mix them uniformly to obtain a mixed powder.

[0065] 3) Weigh 20 parts of silicone-acr...

Embodiment 3

[0069] To prepare a green, environmentally friendly and anti-alkali-returning flexible facing brick, the ingredients are prepared according to the following raw materials: 20 parts of silicon acrylic emulsion, 4 parts of fluorine-containing polyacrylate elastic emulsion, 15 parts of cement, 30 parts of recycled concrete material, polyacrylamide 1 part of gel, 1 part of inorganic pigment and 20 parts of water. Among them, the recycled concrete materials are all 400-mesh particle size.

[0070] The specific steps are as follows: 1) Add 30 parts of recycled concrete materials into the polyacrylamide hydrogel solution, and stir to make the hydrogel adsorb to the surface layer of the recycled concrete materials to obtain hydrogel modified recycled concrete materials.

[0071] 2) Weigh 15 parts of cement and 30 parts of modified recycled concrete material by weight, add them into a kneader, and mix them uniformly to obtain a mixed powder.

[0072] 3) Weigh 20 parts of silicone-acry...

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Abstract

The invention discloses a green and environment-friendly flexible facing brick capable of preventing alkali efflorescence. The green and environment-friendly flexible facing brick is characterized by being prepared from the following raw materials in parts by weight: 20-30 parts of silicone acrylic emulsion, 1-5 parts of fluorine-containing polyacrylate elastic emulsion, 15-25 parts of cement, 30-50 parts of recycled concrete material, 1-5 parts of polyacrylamide gel, 1-3 parts of inorganic pigment and 10-25 parts of water. The polyacrylamide hydrogel is added into the raw materials of the facing brick so that the moisture change microenvironment in the facing brick can be effectively controlled, the moisture can be locked by the hydrogel substances, the moisture is effectively prevented from being diffused in the facing brick, inorganic salt is prevented from being separated out, and the alkali efflorescence phenomenon of the facing brick is reduced.

Description

technical field [0001] The invention belongs to the field of building decoration materials, and in particular relates to a green, environment-friendly and alkali-return-resistant flexible decorative brick and a preparation method thereof. Background technique [0002] The main reason for the anti-alkali of the wall, commonly known as cement blooming, is that the calcium hydroxide in the cement product reacts with carbon dioxide in the atmosphere to form calcium carbonate and deposit on the surface of the concrete product; or: in the calcium hydroxide solution of the hydration product, when the water evaporates Finally, calcium hydroxide crystallizes in the concrete crevices and accumulates on its surface. In addition, limestone or building sand contains a certain amount of soluble alkali-containing organic matter, and the hydroxide, carbonate or other alkali-salt solutions formed by them can easily and quickly ooze "frost" on the concrete surface. salt” and frosting. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/20C04B111/50C04B111/82
CPCC04B28/04C04B2111/00017C04B2111/2023C04B2111/82C04B2111/50C04B24/42C04B24/2682C04B18/16C04B24/2652C04B14/022C04B14/305C04B14/308C04B14/307Y02W30/91
Inventor 邓琪
Owner 万卓(江苏)新材料有限公司
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