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Environment-friendly wall cement mortar without chromatic aberration and preparation method thereof

A technology of cement mortar without color difference, which is applied in the field of building materials and can solve problems such as water separation, flocculation of pigment particles, and color change

Active Publication Date: 2020-07-07
深圳市纳路特建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] During the research and development process of the present invention, technicians found that the problems of uneven chroma and color difference of cement mortar are mainly reflected in the storage of water-based color paste and the process of mixing with cement mortar, often resulting in poor hue, reduced color strength, Pigment particle flocculation, thickening, system water separation and other problems are mainly due to the poor stability of the color paste. It was unexpectedly found through experiments that the wetting agent configured by the present invention is added to the color paste, including gelatin, soybean lecithin, Glycerin, sodium carboxymethyl cellulose, the mass ratio is (1-2): 1: (5-10): (2-7), and at the same time, after the addition sequence mentioned in the present invention, in the suitable inorganic pigment When the content is low, the prepared water-based color paste has good mixing compatibility with the cement mortar system and good storage stability. After 7 days, the sedimentation rate of the pigment particles is lower than 7.2%, thus effectively solving the problem of poor stability of the color paste. Problems such as color difference and uneven chroma in cement mortar

Method used

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  • Environment-friendly wall cement mortar without chromatic aberration and preparation method thereof
  • Environment-friendly wall cement mortar without chromatic aberration and preparation method thereof
  • Environment-friendly wall cement mortar without chromatic aberration and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1 Environmentally friendly and color-free wall cement mortar

[0036] Raw material composition (mass percentage): cement 20%, rubber powder 2%, water reducer powder polycarboxylate 0.1%, sodium sulfate 0.01%, volcanic ash 7%, calcium powder 2%, silica airgel 2%, 10% of color paste, 1% of aluminum oxide and the rest are aggregates, the sum of the contents of the above components is 100%.

[0037] The color paste comprises the following components by weight ratio: 5% of wetting agent, 10% of titanium dioxide, 2% of setting retarder and water as the remainder, and the sum of the contents of the above components is 100%.

[0038] The wetting agent includes gelatin, soybean lecithin, glycerin, and sodium carboxymethylcellulose in a mass ratio of 1:1:5:2.

[0039] The retarder is a compound of isopentyl glycol and arabinose, and the mass ratio of isopentyl glycol and arabinose is 1:1.

[0040] The pore size of silica airgel is 20-70nm, the porosity reaches 95%-98%, ...

Embodiment 2

[0045] Example 2 Environmentally friendly and color-free wall cement mortar

[0046] Composition of raw materials (mass percentage): 30% of cement, 4% of rubber powder, 0.2% of water reducer sodium lignosulfonate, 0.2% of sodium sulfate, 12% of volcanic ash, 7% of calcium powder, 5% of silica airgel, 15% of color paste, 7% of aluminum oxide and the rest are aggregates, the sum of the contents of the above components is 100%.

[0047] The color paste comprises the following components by weight ratio: 10% of wetting agent, 20% of iron blue, 5% of setting retarder and water as the remainder, and the sum of the contents of the above components is 100%.

[0048] The wetting agent includes gelatin, soybean lecithin, glycerin, and sodium carboxymethylcellulose in a mass ratio of 2:1:10:7.

[0049] The retarder is a compound of butanediol and mannose, and the mass ratio of butanediol and mannose is 1:3.

[0050] The pore size of silica airgel is 20-70nm, the porosity reaches 95%-...

Embodiment 3

[0055] Example 3 Environmentally friendly and color-free wall cement mortar

[0056] Raw material composition (mass percentage): 22% cement, 2.5% rubber powder, 0.15% sodium lignosulfonate water reducer, 0.05% sodium sulfate, 9% volcanic ash, 3% calcium powder, 3% silica airgel, 12% of color paste, 2% of aluminum oxide and the remainder are aggregates, the sum of the contents of the above components is 100%.

[0057] The color paste comprises the following components by weight ratio: 6% of wetting agent, 12% of iron oxide yellow, 2.5% of setting retarder and water as the remainder, and the sum of the contents of the above components is 100%.

[0058] The wetting agent includes gelatin, soybean lecithin, glycerin, and sodium carboxymethylcellulose in a mass ratio of 2:1:6:3.

[0059] The retarder is a compound of glycerin and erythrose, and the mass ratio of glycerin and erythrose is 1:1.5.

[0060] The pore size of silica airgel is 20-70nm, the porosity reaches 95%-98%, an...

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Abstract

The invention provides environment-friendly wall cement mortar without chromatic aberration, which is prepared from the following components in percentage by weight: 20 to 30 percent of cement, 2 to 4percent of rubber powder, 0.1 to 0.2 percent of water reducing agent, 0.01 to 0.2 percent of sodium sulfate, 7 to 12 percent of volcanic ash, 2 to 7 percent of calcium powder, 2 to 5 percent of silicon dioxide aerogel, 10 to 15 percent of color paste, 1 to 7 percent of aluminum oxide and the balance of aggregate, totaling 100 percent. Compared with similar cement mortars, the environment-friendlywall cement mortar without chromatic aberration is shorter in drying time, free of shrinkage, small in deformation coefficient, higher in bending strength, tensile strength and breaking strength andhigher in adaptability.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an environmentally friendly wall cement mortar without color difference and a preparation method thereof. Background technique [0002] At present, my country is in a period of large-scale infrastructure construction, and concrete projects such as high-rise, long-span buildings, bridges, and hydraulic engineering are increasing day by day. Cement mortar refers to a mixture made of cementitious material (organic, inorganic or organic-inorganic composite), granular aggregate, water, chemical admixtures and mineral admixtures that need to be added in an appropriate proportion, or After hardening, it forms a composite material with an accumulation structure (usually cementitious material, water, fine aggregate, coarse aggregate, when necessary, admixtures and mineral admixtures are mixed in an appropriate proportion. Concrete is the most contemporary One of the main civil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02C04B14/30C04B24/38C04B103/54C04B111/82C04B111/20
CPCC04B28/02C04B40/0039C04B2103/54C04B2111/00508C04B2111/82C04B2201/50C04B2201/10C04B2111/20C04B24/24C04B14/28C04B14/303C04B14/06C04B2103/302C04B22/147C04B14/14C04B14/064C04B14/305C04B24/14C04B24/003C04B24/02C04B24/383C04B24/10C04B14/308Y02W30/91
Inventor 杜宥谕杜勋虎
Owner 深圳市纳路特建材科技有限公司
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