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Non-cement-base dry powder decoration mortar

A decorative mortar and base dry powder technology, which is applied in the field of decorative mortar for building exterior walls, can solve the problems of slow hydration reaction, high brittleness, cracking, etc., and achieve the effects of improving long-term weather resistance, increasing bonding strength, and reducing transportation costs

Inactive Publication Date: 2012-10-24
JIANGSU NIGAO SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] There are also some applications of colored decorative mortar in China, but the proportion is small, mainly due to the use of cement and other inorganic materials as cementitious materials, slow hydration reaction and high brittleness, resulting in pan-alkali and cracks in the decorative layer of colored mortar. The high water absorption rate of inorganic materials leads to poor stain resistance of the coating, which affects the popularization and application of colored finishing mortar
At present, low-cement colored mortar has been studied in China. By reducing the amount of cement, it can reduce problems such as efflorescence and cracking, but it has not been successfully used.

Method used

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  • Non-cement-base dry powder decoration mortar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1. Formula

[0034] The following formulations added different amounts of organic polymers for comparative experiments.

[0035] Raw material name

1#

2#

3#

organic polymer

150g

200g

250g

Graded aggregate

630g

580g

530g

[0036] filler

150g

150g

150g

Additives

40g

40g

40g

Inorganic pigments

30g

30g

30g

total

1000g

1000g

1000g

[0037] The preparation method of the above-mentioned non-cement-based dry powder decorative mortar is as follows: according to the ratio of raw materials, various raw materials are added to the mixing device in sequence. The principle of adding materials is to add raw materials with large amount first, then add raw materials with small amount, and finally stir Mix well and set aside.

[0038] 2. Specimen preparation and test observation

[0039] Take the ...

Embodiment 2

[0044] 1. Formula

[0045] The following recipes are without fillers

[0046] Raw material name

4#

organic polymer

200g

Graded aggregate

830g

filler

0g

Additives

40g

Inorganic pigments

30g

total

1000g

[0047] The preparation method of the decorative mortar described in this embodiment is basically the same as that in Embodiment 1.

[0048] 2. Specimen preparation and test observation

[0049] Take the well-mixed 4# non-cement-based dry powder decorative mortar of this example, add 160g of water, stir evenly with a mixer, and prepare test specimens according to standards JG / T 24-2000 and JC / T 1024-2007. After the cycle test, the artificial aging resistance of the decorative mortar coating obtained by the 4# formula appeared pulverized, which indicated that the filler had an important effect on improving the weather resistance.

Embodiment 3

[0051] 1. Formula

[0052] The following recipes use organic pigments

[0053] 2. Specimen preparation and test observation

[0054] Raw material name

5#

organic polymer

200g

Graded aggregate

580g

filler

150g

Additives

40g

organic pigment

30g

total

1000g

[0055] The preparation method of the decorative mortar described in this embodiment is basically the same as that in Embodiment 1.

[0056] 2. Specimen preparation and test observation

[0057]Take the uniformly mixed 5# non-cement-based dry powder decorative mortar of this example, add 160g of water, stir evenly with a mixer, and prepare test specimens according to standards JG / T 24-2000 and JC / T 1024-2007. After the cycle test, the artificial aging resistance of the decorative mortar coating obtained by the 5# formula changed color, which indicated that the inorganic pigment made the coating have better long-term color re...

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Abstract

The present invention discloses a non-cement-base dry powder decoration mortar, which comprises, by weight, 15-25% of an organic polymer, 50-70% of a graded aggregate, 10-25% of a filler, 2-5% of an additive, and 0.5-3.0% of an inorganic pigment. According to the present invention, with the ratio of the raw materials, the organic polymer is adopted as a gelling material, and is dispersed and dissolved into a uniform emulsion system when contacting water so as to solve problems of efflorescence, cracking and the like, improve bonding strength of the decoration surface coat, improve long term weathering resistance, and reduce water absorption of the coat, such that the coat has excellent stain resistance, and has characteristics of good impact resistance, low water absorption and the like. In addition, the decoration mortar of the present invention is a powder material, such that costs of production, package, storage, and transportation are low.

Description

technical field [0001] The invention relates to the field of decorative mortar for building exterior walls, in particular to a decorative mortar using an organic polymer as a gelling material. Background technique [0002] Domestic building exterior wall decorations are mainly glazed bricks, organic coatings, and colored finishing mortars. In addition, there are a small proportion of stone decorations, glass curtain wall decorations, and aluminum-plastic panel decorations. [0003] The advantage of facing brick veneer is that it is strong and durable, has good durability and texture, bright colors, rich decorative effects, and has the characteristics of easy cleaning, fire prevention, water resistance, wear resistance, corrosion resistance and low maintenance costs. It has disadvantages such as high cost, high sticking requirements, difficult construction, heavy load, poor air permeability, and many safety hazards. [0004] The thickness of the organic coating finish is sma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/04
Inventor 吴开胜蒋青青马德功王友力薛鹦琪管继南
Owner JIANGSU NIGAO SCI & TECH