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Concrete base surface cleaning alkali-resistant material and preparation method thereof

A concrete and base surface technology, applied in chemical instruments and methods, surface-active detergent compositions, detergent compounding agents, etc., can solve problems such as poor alkali resistance, achieve good antifreeze, good promotion effect, and relieve panning. The effect of alkali phenomenon

Inactive Publication Date: 2020-06-19
武汉东方聚仁防水保温有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Whether it is the phenomenon of pan-alkali blooming on buildings or roads and bridges, it has always been a difficult problem in the world. The cause of pan-alkaline is that the main component of concrete is calcium silicate (chemical salt). After the hydration reaction occurs, free calcium, silicic acid and hydroxide radicals are formed. The incompactness of concrete determines that the concrete has a certain moisture content. When the concrete contains water, the water can rise along the capillary pores. At this time, the The chemical salt is carried out by the water and attached to the concrete surface. At the same time, other salts in the concrete such as calcium hydroxide and other substances will also be precipitated. After reaching the concrete surface, as the water evaporates, these substances remain on the concrete surface and form a white powder. This is how concrete efflorescence is formed, so it is necessary to carry out regular anti-alkali cleaning on the concrete base surface, while the traditional anti-alkali cleaning materials for the concrete base surface generally have the defect of poor anti-alkali effect, and cannot be well treated The efflorescence phenomenon of the concrete base is well alleviated; therefore, we propose the anti-alkali material for cleaning the concrete base and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Anti-alkali materials for cleaning concrete base, including the following ingredients (by mass percentage): 24% anti-alkali sealing emulsion, 16% pure acrylic emulsion, 4.5% anhydrous potassium carbonate, 4.8% silicone defoamer, 2.4 surfactant %, PH regulator 1.3%, antifreeze 4.6%, builder 3.5%, and water as the balance.

[0019] Further, the anti-alkali blocking emulsion is an acrylic emulsion; the surfactant is OP-10.

[0020] Further, the pH regulator is dimethylethanolamine; the antifreeze agent is ethylene glycol; and the builder is sodium nitrate.

[0021] The preparation method of the anti-alkali material for cleaning the concrete base comprises the following steps:

[0022] S1: Weigh a predetermined amount of anti-alkali sealed emulsion and pure acrylic emulsion into a high-speed stirring tank, stir at a speed of 300r / min for 5 minutes, control the stirring temperature to 45°C, and obtain a mixed emulsion after stirring;

[0023] S2: Add a predetermined amount...

Embodiment 2

[0027] Anti-alkali materials for cleaning concrete bases, including the following ingredients (by mass percentage): 25% anti-alkali sealing emulsion, 15% pure acrylic emulsion, 5.5% anhydrous potassium carbonate, 4% organic silicon defoamer, and 2.8% surfactant %, PH regulator 2%, antifreeze 5.2%, builder 4%, and water as the balance.

[0028] Further, the anti-alkali blocking emulsion is an acrylic emulsion; the surfactant is TX-10.

[0029] Further, the pH regulator is dimethylethanolamine; the antifreeze agent is propylene glycol; the builder is potassium nitrate.

[0030] The preparation method of the anti-alkali material for cleaning the concrete base comprises the following steps:

[0031] S1: Weigh a predetermined amount of anti-alkali sealed emulsion and pure acrylic emulsion into a high-speed stirring tank, stir at a speed of 350r / min for 7 minutes, control the stirring temperature to 50°C, and obtain a mixed emulsion after stirring;

[0032] S2: Add a predetermined...

Embodiment 3

[0036] Anti-alkali materials for cleaning concrete base, including the following ingredients (by mass percentage): 28% anti-alkali sealing emulsion, 12% pure acrylic emulsion, 6.5% anhydrous potassium carbonate, 3.2% organic silicon defoamer, 3.2% surfactant %, PH regulator 2.5%, antifreeze 5.8%, builder 4.5%, and water as the balance.

[0037] Further, the anti-alkali blocking emulsion is an acrylic emulsion; the surfactant is OP-10.

[0038] Further, the pH regulator is dimethylethanolamine; the antifreeze agent is propylene glycol; and the builder is sodium nitrate.

[0039] The preparation method of the anti-alkali material for cleaning the concrete base comprises the following steps:

[0040] S1: Weigh a predetermined amount of anti-alkali sealed emulsion and pure acrylic emulsion into a high-speed stirring tank, stir at a speed of 400r / min for 10 minutes, control the stirring temperature to 55°C, and obtain a mixed emulsion after stirring;

[0041] S2: Add a predetermi...

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Abstract

The invention discloses a concrete base surface cleaning alkali-resistant material, which is prepared from the following components in percentage by mass: 20-30% of alkali-resistant sealing emulsion,12-18% of pure acrylic emulsion, 4.5-6.5% of anhydrous potassium carbonate, 3.2-4.8% of organic silicon defoamer and 2.4-3.2% of a surfactant. The invention further discloses a preparation process ofthe concrete base surface cleaning alkali-resistant material, wherein the preparation process comprises the steps of high-speed stirring and cooling. According to the invention, the formula of the concrete base surface cleaning alkali-resistant material is reasonable; alkali-resistant blocking emulsion and pure acrylic emulsion are used as main raw materials, and a variety of auxiliary additives are cooperatively added, so that the prepared water-based cleaning material is high in activity, good in anti-freezing property and good in alkali-resistant cleaning effect, can well clean alkaline powder on a concrete base surface, and can effectively relieve the efflorescence phenomenon of the concrete base surface while ensuring the mechanical property of concrete; and the preparation process issimple, the equipment requirement is low, and the popularization effect is good.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an alkali-resistant material for cleaning a concrete base surface and a preparation method thereof. Background technique [0002] Whether it is the phenomenon of pan-alkali blooming on buildings or roads and bridges, it has always been a difficult problem in the world. The cause of pan-alkaline is that the main component of concrete is calcium silicate (chemical salt). After the hydration reaction occurs, free calcium, silicic acid and hydroxide radicals are formed. The incompactness of concrete determines that the concrete has a certain moisture content. When the concrete contains water, the water can rise along the capillary pores. At this time, the The chemical salt is carried out by the water and attached to the concrete surface. At the same time, other salts in the concrete such as calcium hydroxide and other substances will also be precipitated. After reaching th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/72C11D3/37C11D3/30C11D3/20C11D3/04C11D3/60
CPCC11D1/72C11D3/046C11D3/048C11D3/2044C11D3/30C11D3/3765
Inventor 李威峰
Owner 武汉东方聚仁防水保温有限公司
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