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Waste concrete powder paint and preparation method thereof

A technology of waste concrete and powder coatings, applied in the direction of coating, etc., can solve the problems of soil and air pollution, occupying large land, etc., and achieve the effects of increasing added value, good coating properties, and saving natural resources

Inactive Publication Date: 2015-06-03
SHANDONG JIANZHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Landfill not only takes up a lot of land, but also pollutes the soil and air

Method used

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  • Waste concrete powder paint and preparation method thereof
  • Waste concrete powder paint and preparation method thereof
  • Waste concrete powder paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment one, the preparation of waste concrete powder coating

[0038] A kind of waste concrete powder coating, the mass percentage of each component is shown in the product in table 1. (the percentages described in the present invention are all mass percentages)

[0039] Such as figure 1 Shown, the preparation steps of waste concrete powder coating of the present invention are specifically as follows:

[0040] (1) Take each raw material according to the formula in Table 1, first add water, dispersant, wetting agent, defoamer, film-forming aid, and 90% ethylene glycol into the beaker, and stir at a high speed of 1000r / min with a mixer 15 minutes;

[0041] (2) Weigh titanium dioxide, heavy calcium carbonate, waste concrete powder, kaolin, and wollastonite with particles larger than 800 mesh and add them to the above solution, stir at high speed to make them disperse evenly without agglomeration;

[0042] (3) Then the solution obtained in step (2) was ground at 200...

Embodiment 2

[0046] Embodiment two, the performance of waste concrete powder coating

[0047] The performance test results of the waste concrete powder coating prepared according to the present invention are shown in Table 2. Among them, the constructability of the coating is carried out according to GB / T 9755; the adhesion test of the coating film is carried out according to GB / T 1720; the hardness of the coating film is carried out according to GB / T 1730; / T 1733, the alkali resistance is measured according to GB / T 9265, and the scrub resistance is measured according to GB / T9266.

[0048] Table 1 Product formula

[0049]

[0050] Among them, 1# product - additives: 1% leveling agent, 1% dispersant, 1% wetting agent, 1% defoamer, 0.5% film-forming aid, 0.3% ethylene glycol, thickener 0.1%, AMP-950.1%; filler: titanium dioxide 9%, heavy calcium carbonate 9%, kaolin 8.1%, wollastonite powder 8.1%.

[0051] 2# product - additives: 1% leveling agent, 0.9% dispersant, 1% wetting agent, 0...

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Abstract

The invention discloses waste concrete powder paint and a preparation method thereof. According to the paint, a styrene-acrylic emulsion is taken as an adhesive, common filler and waste concrete powder are taken as filler, and other components comprise auxiliaries such as water, a dispersant, a wetting agent, a coalescing agent, a leveling agent, a thickening agent and the like. According to the preparation method, the prepared waste concrete powder paint has high paint film quality and high water resistance, alkali resistance and scrub resistance, the production cost is reduced, conditions are provided for production of a high value-added waste concrete product, and high-quality recycling of building waste is realized.

Description

technical field [0001] The invention relates to the field of construction waste recycling, in particular to a waste concrete powder coating and a preparation method thereof. Background technique [0002] Construction concrete waste accounts for about 40% of construction waste, and the amount is very large. At present, the amount that can be reused is very small, and the main part is sent to landfill. Landfilling not only takes up a lot of land, but also pollutes the soil and air. At the same time, in cement, concrete, building ceramics, coatings, etc., a large amount of natural sand and gravel are consumed every year. [0003] Construction concrete waste is currently being used in many ways. Paving roads is the most commonly used attempt for construction concrete waste. Large-sized construction waste concrete waste is used to prepare recycled concrete and mortar. Due to its low strength, most of it is used to prepare Low-strength building structure, construction concrete w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14C09D7/12
CPCC09D125/14C08K3/22C08K3/26C08K3/34C08K3/346C08K3/36C08K5/053C08K13/02C08K2003/2241C08K2003/265C09D7/40C09D7/61C09D7/63
Inventor 隋玉武李小兰张丰庆肖莉娟王琦
Owner SHANDONG JIANZHU UNIV
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