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Cement-based capillary crystalline waterproof coating and preparation method thereof

A osmotic crystalline waterproofing and cement-based technology, which is applied in the field of cement-based osmotic crystalline waterproofing coatings and its preparation, and waterproof engineering, can solve problems such as poor structure, weak adhesion, and poor strength

Inactive Publication Date: 2014-02-05
王福刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above waterproof coatings have different degrees of waterproof ability, but the biggest problem is that the structure between the cement sand layer and the concrete layer is not good, the adhesion is not strong, falling off, sanding, and the strength is poor, resulting in poor waterproof effect.

Method used

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  • Cement-based capillary crystalline waterproof coating and preparation method thereof
  • Cement-based capillary crystalline waterproof coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] This embodiment provides a preparation process of cement-based permeable crystalline waterproof coating, which mainly includes the following steps:

[0056] one. Weigh raw materials: 685 kg of cement, 293 kg of quartz powder, 12 kg of methyl triethoxysilane, 10 kg of dehydrated ammonium aluminum sulfate; cement, quartz powder, methyl triethoxysilane, and dehydrated ammonium aluminum sulfate are all powder ;

[0057] Cement: Portland cement;

[0058] two. Preparation of powder

[0059] First put cement and quartz powder into the dry powder mixer, stir evenly, then add methyltriethoxysilane, stir for 30 minutes, then add dehydrated ammonium aluminum sulfate, stir for 10 minutes, and discharge to obtain powder-type cement Based penetrating crystalline waterproof coating.

[0060] Construction method:

[0061] When in use, it is first necessary to prepare: the coating according to the present embodiment: the mass ratio of water is 4~4.5:4~4.5, respectively weigh the...

Embodiment 2-14

[0066] The raw materials and quality used in Examples 2-14 are shown in Table 1 below, and its preparation method and use (construction) method are the same as in Example 1; Table 1 below shows the specific materials used in Examples 1-14. Raw materials and quality. According to the requirements of GB18445-2001, the coatings of the various embodiments of the present invention are detected, and the following table 2 shows the detection data of the cement-based permeable crystalline waterproof coatings obtained in Examples 1-14. As can be seen from the detected data, this The invented cement-based osmotic crystalline waterproof coating has high strength, which is basically similar to cement. In addition, it has the function of osmosis and waterproof, so it is an ideal architectural waterproof coating.

[0067] Table 1

[0068]

[0069] Table 2

[0070] Test items Flexural strength 28d Compressive strength 28d Adhesive strength on wet substrate stability ...

Embodiment 15

[0072] This embodiment provides a preparation process of cement-based permeable crystalline waterproof coating, which mainly includes the following steps:

[0073] one. Weighing raw materials: 685 kg of cement, 293 kg of quartz powder, 12 kg of methyltriethoxysilane, 10 kg of dehydrated ammonium aluminum sulfate, 300 kg of emulsion base material, 241.6 kg of water, 120 kg of polyvinyl alcohol, 2.4 kg of additives , 3 kg of sodium methyl silicate; cement, quartz powder, methyltriethoxysilane, and dehydrated ammonium aluminum sulfate are powders;

[0074] Cement: Portland cement.

[0075] Emulsion base material: refers to the mixture of silicone rubber emulsion and VAE emulsion in any proportion. The so-called mixture of any proportion means that it can be any one of silicone rubber emulsion or VAE emulsion, or silicone rubber emulsion and VAE emulsion according to a certain proportion of the mixture;

[0076]Sodium methyl silicate: a sodium methyl silicate solution with a co...

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Abstract

The invention discloses a cement-based capillary crystalline waterproof coating. A preparation method of the cement-based capillary crystalline waterproof coating comprises the steps of taking 630.8-748 parts of cement, 234.4-351.6 parts of quartz powder, 9.6-14.4 parts of methyl triethoxysilane, 8-12 parts of dehydrated ammonium aluminum sulfate, 240-350 parts of an emulsion binder, 192.7-289.5 parts of water, 96-144 parts of polyvinyl alcohol, 1.9-2.9 parts of an assistant and 2.4-3.6 parts of sodium methyl silicate; mixing the cement, the quartz powder, methyl triethoxysilane and dehydrated ammonium aluminum sulfate and stirring to obtain a powder material; mixing the emulsion binder, water, polyvinyl alcohol, the assistant and sodium methyl silicate and stirring to obtain a slurry; and mixing the powder material, the slurry and water according to a mass ratio of 6-6.5:4-4.5:4-4.5, and thus a cement-based capillary crystalline waterproof coating capable of being used instantly is obtained. The cement-based capillary crystalline waterproof coating can form a cement crystalline layer on building cement, so that self-waterproof cement concrete can be obtained.

Description

Technical field [0001] The present invention involves a waterproof material and its preparation methods, especially a cement -based crystalline waterproof coating and its preparation methods. It is mainly used for waterproof projects such as building roofs, kitchen and bathrooms, and basement. Background technique [0002] In recent years, due to underground structure waterproof and poor waterproof waterproof, the underground room water incident occurred.The leakage of the building will not only cause adverse effects on the living environment of residents; if the underground concrete structure is long -term exudation, on the one hand, the calcium in the concrete will be lost in large quantities, and on the other hand, the reinforcement in the concrete will rustThe overallness of the structure affects the stability and service life of the main structure.Therefore, the waterproof of the underground structure of buildings (especially high -rise buildings) will not only bring a comfo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
Inventor 王福刚
Owner 王福刚
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