CN103030425A - Interface waterproofing agent - Google Patents

Abstract

The invention provides an interface waterproofing agent, which is composed of components A and B, component A is liquid, component B is powder, components A and B respectively include the following components and contents in parts by mass: wherein group A Components include 370-450 parts of waterproof glue; 1-2 parts of defoamer; 1-2 parts of preservative; 1-2 parts of wetting agent; 550-630 parts of water; 500-600 parts; heavy calcium 500-600 parts; acrylic rubber powder 10-20 parts. The preparation of the A and B components can be carried out by mixing and stirring the components uniformly by conventional methods. When using, the A:B components are mixed mechanically or manually in a ratio of 1:2, and then directly painted on the construction site. The invention integrates waterproof and interface effects, reduces on-site construction procedures, is convenient to use, and saves labor and material costs.

Description

interface waterproofing agent

technical field

The invention relates to building waterproof materials, in particular to an interface waterproofing agent.

Background technique

Waterproof technology is a specialized technology to ensure project quality and avoid water erosion hazards, and it occupies an important position in project construction. In daily life, ground leakage in houses, leakage and humidity in hotel toilets, leakage and humidity in underground projects are common problems. Water is a polar substance with a surface tension of about 72mN/m. It has strong diffusivity and can wet a variety of substances. It can not only flow through large void channels under gravity, but also flow in all directions through capillary pores. Therefore, an effective way to solve engineering leakage and moisture problems is to develop and apply waterproof materials.

At present, the known waterproofing agent has poor effect, complicated construction, and easy cracking and falling off. The United States ensures that the waterproofing agent needs to treat the building structure when it is used, that is, the ground or wall should be treated with water before the waterproofing agent is applied, so that the base layer can absorb water and saturate before applying the waterproofing agent. After condensing for 1-2 hours, water and maintain for 24 hours, and there is white precipitate sodium hydroxide on the surface of the building structure, and it must be cleaned. The M1500 cement sealing and waterproofing agent introduced by Zhejiang University is mainly composed of inorganic salts and other chemical substances. When using it, the base material needs to be saturated with water, and the white precipitate sodium hydroxide needs to be washed off after use. There is also a silicone waterproofing agent, which requires a large amount and complicated construction. The current waterproofing agents all have the characteristics of poor comprehensive properties. After coating, it is difficult to guarantee the construction quality, and the service life is short. Soon after coating, water leakage and penetration will occur.

However, the interface agent used in the market often achieves only the effect of the interface and has no waterproof function, which limits its scope of use. To make the interface agent have a waterproof effect, it is often necessary to add an additional waterproof process, which further increases the amount of work.

Contents of the invention

In order to solve the above technical problems, the object of the present invention is to provide an interface waterproofing agent with good comprehensive properties and waterproof and anti-seepage effect.

The adopted technical scheme is as follows:

An interface waterproofing agent is composed of components A and B, component A is liquid, component B is powder, components A and B respectively include the following components and contents in parts by mass:

A component:

Waterproof glue 370-450 parts;

1-2 parts of defoamer;

1-2 parts of preservatives;

Wetting agent 1-2 parts;

Water 550-630 parts;

B component:

Cement 800-1000 parts;

Sand 400-600 parts;

Heavy calcium 400-600 parts;

Acrylic rubber powder 10-20 parts.

Preferably, the ratio of components A and B is 1:2.

Further preferably, the A and B components include the following components and contents:

A component:

Waterproof glue 400 parts;

Defoamer 2 parts;

Preservatives 2 parts;

Wetting agent 1 part;

600 parts of water;

B component:

1000 parts of cement;

Sand 500 parts;

Heavy calcium 500 parts;

Acrylic rubber powder 10 parts.

Preferably, the waterproof emulsion is PS608AP produced by BASF. The physical properties of the product are shown in Table 1:

Table 1 Physical properties of PS608AP

lotion type Acrylate and Styrene Copolymer Emulsion Exterior milky white liquid Solid content (W%) 49.0-51.0 Viscosity (MPa·s) 500-2000 (23℃ DIN EC ISO2555) pH 7.0-9.0 Minimum film forming temperature (°C) ≈10℃ particle size 0.1-0.2

Preferably, the acrylic rubber powder is 6031E produced by Baochen Chemical Company. The physical properties of the product are shown in Table 2:

Physical properties of form 26031E

Exterior White powder Bulk density 500±100g/L average particle size ≈80μm Minimum film forming temperature (°C) 0°C residual moisture ≤1.5% Film Appearance translucent, elastic-plastic pH 7.0±1.0

The preparation of the A and B components can be carried out by mixing and stirring the components uniformly by conventional methods.

When in use, A:B components are mixed mechanically or manually in a ratio of 1:2, and then directly brushed on the construction site, and the impermeability pressure of the present invention is measured after 7 days. The measurement method is: JCT907-2002 Concrete Interface Treatment Agent --GB23440-2009 inorganic waterproof plugging material --6.5 Determination of coating impermeability pressure. The result of the measurement is: the impermeability pressure (7day) ≥ 0.5MPa.

The scope of application of the present invention may include surface treatment of ceramic tiles, glass mosaics, polished tiles, vitrified tiles, marble, terrazzo, brushed stone, concrete, cement mortar, etc.

When the present invention is used on the concrete surface, because the concrete surface is too smooth, by using the present invention, the surface of the base layer can be roughened, the adhesion to the base layer can be increased, and the plastering layer can be avoided from bulging, thereby replacing the artificial chiseling process ; It has strong permeability, can fully infiltrate the surface of the layer material, improve the adsorption force between the new putty and the base material, and increase the bonding ability. Using the interface measurement method provided by JCT907-2002 concrete interface treatment agent, the shear bond strength measured after 7 days is ≥1.0MPa, the tensile bond strength is ≥0.4MPa; the shear bond strength measured after 14 days is ≥1.5MPa , Tensile bond strength ≥ 0.6MPa.

The invention can not only be used as a conventional concrete interface agent, that is, besides the performance of the conventional concrete interface agent, it also has the effect of waterproof and anti-seepage.

The invention integrates waterproof and interface effects, reduces on-site construction procedures, is convenient to use, and saves labor and material costs.

Detailed ways

The present invention can be further understood through the specific examples of the present invention given below, but they are not intended to limit the present invention. Some non-essential improvements and adjustments made by those skilled in the art according to the description in this specification are also deemed to fall within the protection scope of the present invention.

In addition, unless otherwise specified, the parts used in the present invention are all parts by mass.

Example 1

An interface waterproofing agent, which is composed of A and B components, A component is liquid, B component is powder, A and B components include the following components and contents:

A component:

Waterproof glue 370 parts;

1 part of defoamer;

Preservatives 2 parts;

Wetting agent 2 parts;

550 parts of water;

B component:

840 parts of cement;

Sand 500 parts;

Heavy calcium 500 parts;

Acrylic rubber powder 10 parts.

The preparation of the A and B components can be carried out by mixing and stirring the components uniformly by conventional methods.

When in use, A:B components are mixed mechanically or manually in a ratio of 1:2, and then directly painted on the construction site, and the impermeability pressure of the present invention is measured after 7 days, and the impermeability pressure (7day) is 0.7MPa. The shear bond strength measured after 7 days was 1.0MPa, and the tensile bond strength was 0.5MPa; the shear bond strength measured after 14 days was ≥1.6MPa, and the tensile bond strength was 0.6MPa.

Example 2

With reference to Example 1, its A and B components are as follows:

A component:

Waterproof glue 400 parts;

Defoamer 2 parts;

Preservatives 2 parts;

Wetting agent 1 part;

600 parts of water;

B component:

1000 parts of cement;

Sand 500 parts;

Heavy calcium 500 parts;

Acrylic rubber powder 10 parts.

When in use, A:B components are mixed mechanically or manually in a ratio of 1:2, and then directly painted on the construction site. After 7 days, the impermeability pressure of the present invention is measured, and the impermeability pressure (7day) is 1.0MPa. The shear bond strength measured after 7 days was 1.1MPa, and the tensile bond strength was 0.4MPa; the shear bond strength measured after 14 days was 1.6MPa, and the tensile bond strength was 0.7MPa.

Example 3

With reference to Example 1, its A and B components are as follows:

A component:

450 copies of waterproof glue;

Defoamer 2 parts;

Preservatives 2 parts;

Wetting agent 1 part;

630 parts of water;

B component:

1000 parts of cement;

sand 600 parts;

Heavy calcium 550 parts;

Acrylic rubber powder 20 parts.

When in use, A:B components are mixed mechanically or manually in a ratio of 1:2, and then directly painted on the construction site, and the impermeability pressure of the present invention is measured after 7 days, and the impermeability pressure (7day) is 0.6MPa. The shear bond strength measured after 7 days was 1.1MPa, and the tensile bond strength was 0.4MPa; the shear bond strength measured after 14 days was 1.5MPa, and the tensile bond strength was 0.6MPa.

It can be seen from the above examples 1-3 that the present invention has a synergistic effect by adding waterproof emulsion and acrylic rubber powder and other components of the formula, so that it has the effect of waterproof and anti-seepage in addition to the performance of the conventional concrete interface. And its waterproof and impermeable pressure reaches above 0.5MPa.

Claims (5)

1. an interface water-resisting agent is characterized in that, is comprised of A, B component, and the A component is liquid, and the B component is powder, and A, the point counting of B components in mass portion do not comprise following composition and content:

The A component:

Waterproof glue 370-450 part;

Defoamer 1-2 part;

Sanitas 1-2 part;

Wetting agent 1-2 part;

Water 550-630 part;

The B component:

Cement 800-1000 part;

Sand 500-600 part;

Coarse whiting 500-600 part;

Vinylformic acid rubber powder 10-20 part.

2. interface as claimed in claim 1 water-resisting agent, it is characterized in that: described A, B ratio of component are 1:2.

3. interface as claimed in claim 2 water-resisting agent is characterized in that described A, B component comprise following component and content:

The A component:

400 parts of waterproof glues;

2 parts of defoamers;

2 parts of sanitass;

1 part of wetting agent;

600 parts in water;

The B component:

1000 parts of cement;

500 parts in sand;

500 parts of coarse whitings;

10 parts of vinylformic acid rubber powders.

4. such as each described interface water-resisting agent of claim 1-3, it is characterized in that: described water-proof emulsion is the PS608AP that BASF AG produces.

5. such as each described interface water-resisting agent of claim 1-3, it is characterized in that: described vinylformic acid rubber powder is the 6031E that precious occasion chemical company produces.