CN103588441B - Environment-friendlycolor color dry-powder crack-sealer and preparation method thereof - Google Patents

Abstract

The present invention relates to a kind of Environment-friendlycolor color dry-powder crack-sealer and preparation method thereof.Raw material composition of the present invention and weight percent thereof are: cement 25 ~ 35%; Superfine steel slag micropowder 15 ~ 20%; Sand 40 ~ 50%; Calcite in powder 10 ~ 15; Redispersible latex powder 2 ~ 3%; Adhesion promotor 0.1 ~ 0.2%; Alkali inhibitor 0.5 ~ 1.5%; Hydrophober 0.1 ~ 0.2%; Thickening material 0.05 ~ 0.1%; Tinting material 0.3 ~ 0.5%; Mineral dye 2 ~ 5%.Environment-friendlycolor color dry-powder crack-sealer of the present invention has that caking ability is high, water proof anti-seepage, splitting resistance are good, suppresses the excellent properties such as the accumulation of salt in the surface soil, rich color.Simultaneously due to this jointing agent with industrial solid castoff superfine steel slag micropowder for raw material; with low cost; production technique and equipment simple; for industrial solid castoff opens the new way of a recycling; while protecting environment; also a saving natural resources, there is good economic benefit, social benefit and environmental benefit, be suitable for suitability for industrialized production and apply.

Description

Environment-friendly colored dry powder pointing agent and preparation method thereof

technical field

The invention relates to a dry powder pointing agent and a preparation method thereof, in particular to an environment-friendly colored dry powder pointing agent and a preparation method thereof.

Background technique

Steel slag is an industrial solid waste discharged during the steelmaking process. In recent years, my country has discharged nearly 100 million tons of steel slag, and it is still increasing at a rate of 80 million tons every year. However, the utilization rate of steel slag in my country is less than 17%, resulting in a large amount of steel slag accumulation, which not only occupies a large amount of land resources, but also brings serious pollution to the local environment. In the process of resource utilization of steel slag, the application of steel slag in the construction industry has always been a research hotspot, including pointing agents.

Pointing agent, also known as caulking agent and grouting agent, is mainly used to fill the gaps between tiles or stones, and cooperate with decorative materials such as tiles and stones to provide beautiful finishes and ensure the bonding and anti-corrosion between facing tiles. Seep. Traditional jointing materials are mainly made of cement, quartz sand and various additives, which generally have problems such as poor adhesion, easy to fall off, poor water resistance, easy to efflorescence, large shrinkage, easy to crack, and single color. Thus affecting the quality and aesthetics of the entire building. The new jointing agent prepared by the present invention uses industrial solid waste---ultrafine steel slag micropowder as raw material, which not only has the characteristics of strong cohesive force, inhibition of efflorescence, small shrinkage rate, and various colors, but also opens up the possibility of solid waste A new way of resource utilization of steel slag protects the natural environment and saves resources and energy.

Contents of the invention

One of the objects of the present invention is to provide an environment-friendly colored dry powder pointing agent to solve the problems of poor adhesion, easy efflorescence, easy cracking and single color of traditional pointing materials.

The second object of the present invention is to provide the preparation method of this environment-friendly colored dry powder grouting agent.

An environment-friendly colored dry powder pointing agent is characterized in that the composition and weight percentage of the pointing agent are:

Cement 25～35% Superfine steel slag powder 15～20%

Silica sand 40～50% Calcite powder 10～15%

Redispersible latex powder 2～3% Adhesion promoter 0.1～0.2%

Alkali inhibitor 0.5～1.5% Hydrophobic agent 0.1～0.2%

Thickener 0.05～0.1% Colorant 0.3～0.5%

Inorganic pigments 2-5%;

The sum of the mass percentages of the above components is 100%;

Described cement is 42.5 grade ordinary portland cement;

The ultra-fine steel slag micropowder is converter or electric furnace steel slag, which is ground after magnetic separation and iron removal treatment, and its specific surface area

≥600m ² /kg, ultra-fine steel slag powder with a particle size of less than 30μm accounts for more than 90% of the total mass, and the metallic iron content is ≤0.5%;

The particle size of the silica sand is 0.05-0.5mm;

Described calcite powder, its fineness is 200 orders;

The redispersible latex powder is a hydrophobic ethylene/vinyl laurate/vinyl chloride ternary copolymer powder that can be redispersed in water, and its fineness is 100 mesh;

Described adhesion promoter is polyvinyl alcohol;

Described alkali inhibitor is acrylic acid rubber powder;

The water-repellent agent is a modified silane/siloxane powder high-efficiency water-repellent agent obtained by spray-drying and wrapping silane with a water-soluble protective colloid and an anti-caking agent;

The thickener is at least one of methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxyethylmethylcellulose, and hydroxypropylmethylcellulose, and the fineness is 100 mesh;

Described colorant is titanium dioxide;

The said inorganic pigments are colored metal oxides or insoluble metal salts.

The above water-soluble protective colloids are: EVA dispersible latex powder, silicone powder

The above-mentioned water-soluble anti-caking agent is: calcium hardate.

The oxides of the above-mentioned non-ferrous metals are: iron oxide red iron oxide black.

The aforementioned insoluble metal salt is: chrome yellow.

A preparation method for the above-mentioned environment-friendly colored dry powder pointing agent is characterized in that the specific steps of the method are: fully mixing the above formula evenly to obtain an environment-friendly colored dry powder pointing agent. Add water when using, the water-cement ratio is 0.5:1, fully stir evenly.

The pointing agent prepared by the present invention is a new type of environmentally friendly colored dry powder pointing agent, and it has the following characteristics:

1. The present invention uses steel slag as a raw material to prepare jointing agent, which reduces the amount of cement and opens up a new way for the comprehensive utilization of industrial solid waste. The invention not only reduces the production cost of the pointing agent, but also achieves the dual effects of environmental protection and waste utilization.

2. The present invention adds an effective amount of water-repellent agent and alkali inhibitor, which improves the waterproof, anti-seepage and anti-pan-alkaline performance of the new environmentally friendly pointing agent, and ensures its long-lasting weather resistance.

3. The invention adds an effective amount of thickener and adhesion promoter, which can make the product have high water retention rate and small shrinkage rate, and enhance the crack resistance and adhesion of the product.

4. The invention adds effective amounts of various pigments and colorants, which increases the user's personalized choice and enhances the decorative effect of the building.

Detailed ways

Specific embodiments of the present invention are described below.

Example 1

In this embodiment, the preparation of 100 kg of jointing agent is taken as an example, and its preparation method is as follows.

Weigh the ingredients according to the prescribed ratio, and the amount of each raw material is:

Cement 25kg

Ultra-fine steel slag powder 15kg

Sand 44kg

Calcite powder 10kg

Redispersible latex powder 2.4kg

Adhesion promoter 0.1kg

Alkali Inhibitors 1kg

Hydrophobic agent 0.15kg

Thickener 0.05kg

Colorant 0.3kg

Iron oxide pigments 2kg

Put the above-mentioned various raw materials into the mixer, and after fully mixing evenly, a new type of environmentally friendly colored dry powder pointing agent can be obtained. When using, add appropriate amount of water to adjust evenly.

The new environment-friendly colored dry powder pointing agent obtained from the above implementation cases was tested according to the provisions on pointing agent in the standard of JG158-2004 "Rubber Powder Polystyrene Particle Exterior Wall External Thermal Insulation System", and its various technical performance indicators all meet the requirements of the national standard. relevant standards.

Example 2

In this embodiment, the preparation of 100 kg of jointing agent is taken as an example, and its preparation method is as follows.

Weigh the ingredients according to the prescribed ratio, and the amount of each raw material is:

Cement 30kg

Ultra-fine steel slag powder 16kg

Sand 30kg

Calcite powder 15kg

Redispersible latex powder 3kg

Adhesion promoter 0.2kg

Alkali Inhibitors 1.5kg

Hydrophobic agent 0.1kg

Thickener 0.1kg

Colorant 0.5kg

Iron oxide pigments 3.6kg

Put the above-mentioned various raw materials into the mixer, and after fully mixing evenly, a new type of environmentally friendly colored dry powder pointing agent can be obtained. When using, add appropriate amount of water to adjust evenly.

The new environment-friendly colored dry powder jointing agent prepared by the above implementation cases was tested according to the provisions on jointing agent in the standard of JG158-2004 "Rubber Powder Polystyrene Particle Exterior Wall External Thermal Insulation System", and its technical performance indicators all meet the requirements of the national standard. relevant standards.

Claims (4)

1. An environment-friendly colored dry powder pointing agent is characterized in that the composition and weight percentage of the pointing agent are: Cement 25～35% Superfine steel slag powder 15～20% Silica sand 40～50% Calcite powder 10～15% Redispersible latex powder 2～3% Adhesion promoter 0.1～0.2% Alkali inhibitor 0.5～1.5% Hydrophobic agent 0.1～0.2% Thickener 0.05～0.1% Colorant 0.3～0.5% Inorganic pigments 2-5%; The sum of the mass percentages of the above components is 100%; Described cement is 42.5 grade ordinary portland cement; The ultra-fine steel slag micropowder is converter or electric furnace steel slag, which is ground after magnetic separation and iron removal treatment, and its specific surface area ≥600m ² /kg, ultra-fine steel slag powder with a particle size of less than 30μm accounts for more than 90% of the total mass, and the metallic iron content is ≤0.5%; The particle size of the silica sand is 0.05-0.5 mm; Described calcite powder, its fineness is 200 orders; The redispersible latex powder is a hydrophobic ethylene/vinyl laurate/vinyl chloride ternary copolymer powder that can be redispersed in water, and its fineness is 100 mesh; Described adhesion promoter is polyvinyl alcohol; Described alkali inhibitor is acrylic acid rubber powder; The water-repellent agent is a modified silane/siloxane powder high-efficiency water-repellent agent obtained by spray-drying and wrapping silane with a water-soluble protective colloid and anti-caking agent; The thickener is at least one of methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxyethylmethylcellulose, and hydroxypropylmethylcellulose, and the fineness is 100 mesh; Described colorant is titanium dioxide; The said inorganic pigments are colored metal oxides or insoluble metal salts. 2. The environment-friendly colored dry powder pointing agent according to claim 1, characterized in that the water-soluble protective colloid is: EVA dispersible latex powder or organic silicon powder. 3. The environment-friendly colored dry powder pointing agent according to claim 1, characterized in that said insoluble metal salt is: chrome yellow. 4. A preparation method for preparing an environment-friendly colored dry powder pointing agent according to claim 1, characterized in that the specific steps of the method are: fully mixing the above-mentioned formula to obtain an environment-friendly colored dry powder pointing agent, Add water when using, the water-cement ratio is 0.5:1, and stir well.