KR101518465B1 - Composition for floor material and construction method using thereof - Google Patents

Abstract

The present invention relates to a composition of a complex floor material for processing a wall side of a concrete structure and a construction method of a complex floor layer using the same, and aims to have water repellency, heat insulation, and heat cut-off at the same time by gradually stacking a lower channel including acrylic latex on the wall side of the concrete structure located outside or inside, an intermediate channel elastic layer, and an upper channel coating layer. The present invention comprises: a lower channel material composition having 30 to 60 wt% of the acrylic latex, 20 to 40 wt% of an inorganic silane resin, 1 to 10 wt% of portland cement, 0.2 to 1 wt% of a dispersing agent, 0.2 to 1 wt% of antifoamer, and 10 to 30 wt% of water; an intermediate channel material composition having 30 to 60 wt% of the acrylic latex, 10 to 50 wt% of a rubber chip, 10 to 30 wt% of calcium carbonate, 0.5 to 3 wt% of the dispersing agent, 0.2 to 3 wt% of preservative, 1 to 5 wt% of the antifoamer, 2 to 10 wt% of titanium oxide, and 1 to 20 wt% of aerogel; and an upper channel material composition having 30 to 60 wt% of the acrylic latex, 3 to 20 wt% of a ceramic hollow filler, 3 to 20 wt% of sillica (8, 9), 3 to 10 wt% of diatomite, 0.2 to 3 wt% of the anitofoamer, 0.2 to 3 wt% of the dispersing agent, 0.2 to 10 wt% of a pigment, and 1 to 5 wt% of a vicosity agent.

Description

Technical Field [0001] The present invention relates to a composite flooring composition for treating a base surface of a concrete structure and a composite flooring construction method using the same,

The present invention relates to a composite flooring composition for treating a floor surface of a concrete structure and a composite flooring construction method using the same, and more particularly, to a flooring structure for a concrete structure which has excellent adhesion to the concrete surface, The present invention relates to a composite flooring composition for surface treatment of a concrete structure and a composite flooring construction method using the composite flooring composition.

Generally, flooring is applied on the bottom surface of schools, sports facilities, factories, shopping malls, offices, restaurants, underground communal multi-facilities, etc. to prevent water infiltration and improve activity or workability.

Epoxy resin, urethane resin, and vinyl resin are used as flooring materials such as synthetic resin paint type flooring materials and cement based flooring materials. Epoxy resins and urethane resins are excellent in flexibility, stretchability, dustproofness and stain resistance, and excellent workability and quick drying property Not only has excellent initial adhesive strength, is excellent in water resistance, and can be used in a large amount of various fillers, and is most widely used.

However, since the epoxy flooring material is insufficient in resistance to the behavior of the backing concrete, it is easily broken when the concrete is broken, and peeling and peeling phenomenon occur due to the behavior of the concrete. Especially, the epoxy resin based flooring has a problem that it is not suitable for the high temperature environment outdoors because the hardening time is long and the scratches and the like are easily damaged during the work, .

Since the urethane resin has excellent physical properties of the material itself, water present on the lower surface of the base concrete is difficult to be discharged through the coating, and therefore, when the outdoor application is performed, .

Particularly, although the conventional flooring has predetermined durability and waterproofness, it does not have its own heat shielding and heat insulating function, and when the concrete base surface coated with the flooring material is exposed for a long time by sunlight, Which is absorbed by the concrete base surface to generate heat energy, thereby raising the temperature of the concrete base surface, thereby lowering the activity and workability of the users.

Published Patent Publication No. 10-2012-0009961 (Feb. 2, 2012) Patent Registration No. 10-0873403 (December 4, 2008) Patent Registration No. 10-1263382 (2013.05.06) Patent Registration No. 10-0900078 (2009.05.22)

The object of the present invention is to provide a concrete structure which has a waterproof property, a heat insulating property and a heat insulating property simultaneously by laminating a base layer including an acrylic latex, a middle elastic layer and an upper coating layer successively on a base surface of a concrete structure located in the outdoor or indoors, And a composite floor layer construction method using the composite floor composition.

The present invention relates to an undercoat composition comprising 30 to 60 wt% of an acrylic latex, 20 to 40 wt% of an inorganic silane resin, 1 to 10 wt% of a portland cement, 0.2 to 1 wt% of a dispersant, 0.2 to 1 wt% of an antifoaming agent and 10 to 30 wt% % Of an antioxidant, 2 to 10 wt% of an antioxidant, 2 to 10 wt% of an antioxidant, 1 to 20 wt% of an airgel, 30 to 60 wt% of an acrylic latex, 10 to 50 wt% of a rubber chip, 10 to 30 wt.% Of calcium carbonate, 0.5 to 3 wt.% Of a dispersant, 0.2 to 3 wt. And 3 to 20 wt% of a ceramic hollow filler, 3 to 20 wt% of silica sand (No. 8, No. 9), 3 to 10 wt% of diatomaceous earth, 0.2 to 3 wt% of an antifoaming agent, 3 to 5 wt%, a pigment of 0.2 to 10 wt%, and a thickener of 1 to 5 wt% based on the total weight of the concrete structure.

The present invention relates to a base material composition which is adhered without lifting due to reaction with a base surface of a concrete structure, a middle material composition which maximizes heat insulation and absorption effect by using a material of titanium oxide and an airgel, A composite floor layer composed of a lower layer, a middle elastic layer and an upper coating layer is formed on a base surface of a concrete structure by using an upper layer composition which is formed to convert heat energy into thermal conversion kinetic energy from solar heat to consume heat , And the composite bottom layer has excellent durability, heat insulation, heat resistance and elasticity, has no peeling phenomenon, and can be applied both indoors and outdoors of concrete structures.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an exemplary view of a composite bottom layer structure in accordance with the present invention;

1 shows an exemplary composite floor structure according to the present invention, wherein the flooring composition of the present invention comprises 30 to 60 wt% of an acrylic latex, 20 to 40 wt% of an inorganic silane resin, 1 to 10 wt% of a portland cement, By weight, an antifoaming agent in an amount of 0.2 to 1% by weight, and water in an amount of 10 to 30% by weight,

% Of an antioxidant, 2 to 10 wt% of an antioxidant, 2 to 10 wt% of an antioxidant, 1 to 20 wt% of an airgel, 30 to 60 wt% of an acrylic latex, 10 to 50 wt% of a rubber chip, 10 to 30 wt.% Of calcium carbonate, 0.5 to 3 wt.% Of a dispersant, 0.2 to 3 wt. And

3 to 20 wt% of acrylic latex, 3 to 20 wt% of ceramic hollow filler, 3 to 20 wt% of silica sand (No. 8, No. 9), 3 to 10 wt% of diatomaceous earth, 0.2 to 3 wt% of defoamer, 0.2 to 3 wt% %, And 1 to 5 wt% of a thickener.

The undercoat composition is adhered to the surface of the concrete structure by reaction to form a coat, which improves the adhesion of the middle elastic layer formed by the intermediate composition.

The undercoat composition includes an acrylic latex, a portland cement, a dispersant, and an antifoaming agent.

Unlike conventional acrylic emulsion resins (opaque liquids, water-diluted resins having a particle size of 0.1 탆 or less and a molecular weight of 200,000 or less), the acrylate latex has a stabilized structure, And has good storage stability properties.

The acrylic latex is a water-dispersible resin (hydrophobic polymer) having a milky light transparent property, a particle size of 0.1 to 0.5 mu m and a molecular weight of more than 200,000, and is widely used as an epoxy resin and an acrylic emulsion When compared with resin, there are differences as shown in [Table 1] and [Table 2] below.

[Table 1]

[Table 2]

When the acrylic latex is added in an amount of less than 30 wt%, inter-particle stability is lowered and the density of the network cured film of the waterproof coating film is decreased. When the content of the acrylic latex is more than 60 wt%, adhesion, viscosity, water resistance and alkali resistance Therefore, it should be added within an appropriate range.

Such an acrylic latex is obtained by copolymerizing butyl acrylate (BA) with acrylic acid (AA), methyl methacrylate (MMA), and 2-ethylhexyl acrylate (2-EHA).

The Portland cement has an apparent specific gravity of 4.05 and a particle size of 30 to 60 占 퐉. If it is less than 1% by weight, the curing rate is low. If it exceeds 10% by weight, the curing rate is accelerated and the workability is poor, .

The inorganic silane resin is a transparent liquid phase composed of an aqueous colloidal nano silica and has a high alkalinity of 1,240 kg / m 3 and PH 12.5. The inorganic silane resin penetrates into the concrete base surface by excellent osmosis action and reacts with water with concrete, The substrate and the interior are strengthened and protected.

If the amount of the inorganic silane is less than 20% by weight, the effect of improving the water tightness and water resistance may be insufficient because the inorganic silane is not sufficiently penetrated into the concrete. If the inorganic silane is more than 40% by weight, the water tightness and water resistance are improved. Competitiveness may deteriorate

That is, since the silane has a very small molecular size and can permeate into the inside of the aggregate, the acrylic latex is water-soluble. Therefore, when the silane is coated on the surface of the aggregate, the silane exhibits excellent adhesion with the hydrate. The cohesive force of the baggage is decreased. When the silane content is high, the content of the acrylic latex is relatively decreased, and the acrylic latex is not sufficiently applied to the concrete surface, so that the adhesion with the bag is deteriorated.

The undercoat composition as described above is formed by mixing the acrylic latex, the inorganic silane resin and the cement at a certain ratio, so that the bonding force between the latex and the inorganic silane resin is increased and the peeling phenomenon does not occur, Waterproof effect by the reaction of water.

That is, the undercoat composition of the present invention is not only harmless to the human body during construction work, but also penetrates into the base of the structure to efficiently fill the voids of the concrete structure, thereby making the undercoat layer It has the enhancement and waterproof effect.

In addition, the undercoat composition has a high drying speed and can be applied even in a slightly wetted water state. In addition, the undercoat composition is excellent in permeability and flexibility, so that the peeling phenomenon of the undercoat layer does not occur, Is not only excellent in waterproof effect but also free from cracking of the undercoat layer (coating film) due to freezing and thawing.

The middle layer composition is prepared by mixing calcium carbonate, titanium oxide and airgel in an acrylic latex to maximize heat insulation and sound absorbing effect and to provide an external deterioration and anti-frosting effect. A rubber chip, a dispersant, a preservative and a defoaming agent .

If the amount of the calcium carbonate is less than 10 wt%, the coating film is not formed to a required thickness or more. If the amount exceeds 30 wt%, physical properties such as elasticity, elongation, and adhesive strength decrease and it becomes difficult to maintain the waterproof performance.

In addition, the calcium carbonate has a specific surface area of about 7 m2 / g to about 51 m2 / g and a whiteness of 88 to 98%, which can increase the physical properties of the intermediate composition.

Further, the above-mentioned calcium carbonate uses heavy carbon or hard coal, preferably heavy carbon having a particle size of 10 to 20 mu m.

The titanium oxide not only has the effect of improving the heat insulation performance by suppressing the transmission of the radiant light but also performs the decomposition of organic matter and the air purification. Particularly, the titanium oxide has an ultraviolet shielding effect (resistance to ultraviolet rays) Provides antifouling properties.

In addition, titanium oxide having a particle diameter of 2 to 9 탆 is preferably used, and the titanium oxide in such a particle diameter range has a high refractive index, thereby decreasing the light transmittance, thereby improving the hiding power and improving the heat insulating performance of the middle layer .

When the amount of the titanium oxide dms is less than 2 wt%, cohesion is reduced to deteriorate the water stopping effect. When the amount exceeds 10 wt%, the cohesive property is increased and the elasticity is deteriorated, so that the concrete can not actively cope with the flow.

The airgel has a density of about 0.05 to 0.2 g, a porosity of 90 to 98%, a specific surface area of 200 to 2,000 m 2 / g, preferably 400 to 1,800 m 2 / g, a pore volume of 2 to 10 cm 3 / g, Which is a transparent nanoporous material having a particle size of 10 to 2,000 mu m.

If the particle size of the aerogels is less than 10 탆, the aerogels are too light to disperse evenly during the formation of the intermediate elastic layer, and the porosity existing in the particles is lowered to deteriorate the adiabatic effect. It is undesirable that the particles are too large and the surface becomes rough in the case of a thin coating film.

If the pore volume of the airgel is less than 2 cm 3 / g, the space occupied by the air becomes too small, and at the same time, the heat conduction path to the skeleton becomes dominant to deteriorate the heat insulating effect. When the pore volume exceeds 10 cm 3 / g, Is too large, the heat insulating effect may be deteriorated by convection of air.

The above-mentioned airgel may be a silica airgel powder or hydrophobized aerogel powder, more preferably a silica airgel powder in which the surface of the airgel is hydrophobized.

The aerogels may be prepared by diluting methanol with methyl silicate as a raw material of silk, adding water, and subjecting the wet gel prepared by the hydrolysis and condensation reaction to aging and supercritical drying in alcohol for several weeks.

Such an airgel has a very good solar transmittance and a very efficient super insulation property due to its inherent structural characteristics, and gives excellent heat insulation performance in forming a middle elastic layer.

The rubber chip may be a natural rubber chip or a recycled rubber chip such as a waste tire or a rubber glove. The rubber chip may be ground to a particle size of 0.2 to 0.8 mm. The rubber chip may be mixed with an acrylic latex, It is possible to provide a function of preventing adiabatic and dew condensation and to prevent the damage and lifting of the middle elastic layer due to the crack and the behavior of the concrete and to provide a function of absorbing the external impact.

The above-mentioned intermediate composition is formed of an environmentally friendly rubber chip and an airgel having a concrete protection function to form a moderate elastic layer having no elasticity and no tearing, cracking or swelling.

The topcoat composition forms an upper coating layer having heat resistance, heat insulating property and waterproof property, and includes acrylic latex, ceramic hollow filler, silica sand, diatomaceous earth, antifoaming agent, dispersant, pigment and thickener.

The ceramic hollow filler is dispersed in an acrylic latex in the form of a spherical body having a hollow space formed therein, in the form of very fine granules having a diameter of several tens of microunits.

Such a ceramic hollow filler has sunlight reflection, heat dissipation, heat shielding, humidity control, and endothermic function, and diffracts near infrared rays, visible light, and ultraviolet rays of sunlight that hit the film, And 90% or more of the heat absorbed is radiated to the outside to suppress temperature rise of the coating film.

In addition, the ceramic hollow filler can absorb a larger amount of moisture by allowing fine moisture absorbed by the coating to stay on the surface of the hollow filler, and the temperature rise of the coating film can be suppressed through evaporation of moisture absorbed and stored. That is, since the ceramic hollow filler is in the form of fine granules, the sum of the surface area of each ceramic hollow filler reaches several times the surface of the coating film, so that it can absorb a larger amount of moisture.

In addition, since the ceramic hollow filler is prevented from being transferred to the inside by the vacuum part, the ceramic hollow filler has an excellent heat insulating effect and a heat shielding effect.

When the amount of the ceramic hollow filler is less than 3 wt%, the sunlight reflection, heat dissipation, heat shielding, humidity control, and endothermic function may be deteriorated. When the ceramic hollow filler is added in an amount exceeding 20 wt% But also the coating film in which the ceramic hollow filler is uniformly dispersed and arranged can not be formed, so that functions such as sunlight reflection or heat dissipation can not be normally performed.

The diatomaceous earth has a function of increasing abrasion resistance and slip resistance, and improves the adhesion to the center, and is added in a range of 3 to 10 wt% in consideration of adhesiveness, fluidity and water absorption.

In addition, the diatomaceous earth absorbs water vapor which is in contact with the surface of the coated film to prevent heat transfer, and prevents vapor pressure and lifting and swelling of the coating film caused by moisture contained in the concrete base surface.

In addition, since the diatomite has a low density and a high porosity, it has a large surface area, thereby preventing peeling while promoting the drying of the coating film, and further enhancing heat resistance by mixing with a ceramic hollow filler.

The sandpaper has a function of fixing the coating film, that is, the top coat layer, and uses No. 8 or No. 9 silica, preferably No. 8 silica.

The above-mentioned topcoat composition is coated on the intermediate elastic layer to form an upper coating layer containing the ceramic hollow filler and the diatomaceous earth. The ceramic hollow filler has a characteristic of converting heat energy into thermal conversion kinetic energy And the diatomaceous earth has excellent abrasion resistance, slip resistance and water absorbing property, and the top coating layer formed by the top coat composition lowers the reflection heat insulating function and the atmospheric temperature to about 3 to 15 캜 on the surface, (Heat Island) phenomenon is prevented and the effect of lowering the temperature of the room is cool in summer and warm in winter.

In addition, the top coating layer formed of the topical composition includes wear resistance and slip resistance. When applied to athletic facilities such as tennis courts, basketball courts, volleyball courts, badminton courts, etc. where fatigue is low, It is effective.

The above-mentioned undercoat composition, the intermediate composition and the dispersant of the topcoat composition act to improve uniform dispersion, storage stability, and workability of the raw materials during mixing with other raw materials, And to destroy the generated bubbles.

The thickener of the topical composition is a viscosity controlling agent. The thickening agent precipitates during the storage of the completed coating composition, and the caking agent is placed on the bottom of the container. (cakes).

In addition, organic or inorganic pigments may be used as the pigment of the top coat composition.

The dispersant, antifoaming agent, thickener, preservative, and pigment are well known in the technical field of the present invention, so that detailed description thereof will be omitted.

Hereinafter, a method of applying a flooring material using the flooring composition of the present invention comprising a grounding material composition, a middle material composition, and a top coat composition will be described.

A priming step of applying a primer composition one or two times to a base surface (100) of a concrete structure to form a primer layer (10) having a thickness of 0.2 mm to 50 mm;

An intermediate coating step of coating a middle layer composition on the primer layer to form a midpoint elastic layer 20 having a coating thickness of 1.5 mm to 100 mm;

And a top coating step of forming an upper coating layer (30) by applying a top coat composition on the moderate elastic layer,

The undercoat composition comprises 30 to 60 wt% of an acrylic latex, 20 to 40 wt% of an inorganic silane resin, 1 to 10 wt% of a portland cement, 0.2 to 1 wt% of a dispersant, 0.2 to 1 wt% of an antifoaming agent and 10 to 30 wt%

The intermediate composition is composed of 30 to 60 wt% of an acrylic latex, 10 to 50 wt% of a rubber chip, 10 to 30 wt% of calcium carbonate, 0.5 to 3 wt% of a dispersant, 0.2 to 3 wt% of a preservative, 1 to 5 wt% of an antifoaming agent and 1 to 20 wt% In addition,

The topcoat composition comprises 30 to 60 wt% of acrylic latex, 3 to 20 wt% of ceramic hollow filler, 3 to 20 wt% of silica sand (No. 8, No. 9), 3 to 10 wt% of diatomaceous earth, 0.2 to 3 wt% of defoamer, , A pigment of 0.2 to 10 wt%, and a thickener of 1 to 5 wt%.

Example

The underlayer layer (0.25 mu m) was formed by applying the undercoat composition on the base surface (2 m 2 m) of the concrete structure, and the middle layer composition was coated on the undercoat layer to form a middle layer elastic layer having a thickness of 3 mm, A top layer composition was coated on the middle elastic layer to form an upper coating layer (0.3 m) to form a composite bottom layer having a lower layer, a middle elastic layer and an upper coating layer, and then the surface temperature thereof was measured. The results are shown in Table 3.

At this time, the undercoat composition was composed of 50 wt% of acrylic latex, 20 wt% of inorganic silane resin, 8 wt% of portland cement, 0.5 wt% of dispersant, 0.5 wt% of defoamer and 21 wt%

The middle layer composition is composed of 50 wt% of acrylic latex, 11 wt% of rubber chip, 20 wt% of calcium carbonate, 1 wt% of dispersant, 1 wt% of antiseptic agent, 2 wt% of antifoaming agent, 5 wt% of titanium oxide and 10 wt%

The topcoat composition was composed of 60 wt% of acrylic latex, 10 wt% of ceramic hollow filler, 10 wt% of silica sand (No. 8, No. 9), 8 wt% of diatomaceous earth, 2 wt% of defoamer, 2 wt% of dispersing agent, 5 wt% of pigment and 3 wt% Respectively.

As a contrast group, the surface temperature was measured by applying a commercially available elastic urethane flooring material, and both the present invention and the contrast group were applied on July 12.

At this time, the elastic urethane flooring material of the contrast group was coated with a primer on a concrete base surface, and applied with an EPDM chip of 12 mm, urethane (semi-rigid) of 1.5 mm, urethane (rigid) of 1.5 mm and a top coating.

[Table 3]

As can be seen from the above Table 3, it can be seen that the surface temperature of the composite bottom layer according to the present invention is remarkably lower than the surface temperature of conventional general urethane flooring.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

(10): Undercoat layer (20): Moderate elastic layer
(30): upper coating layer (40): composite bottom layer
(100): Concrete structure base surface

Claims (6)

A base material composition comprising 30 to 60 wt% of an acrylic latex, 20 to 40 wt% of an inorganic silane resin, 1 to 10 wt% of a portland cement, 0.2 to 1 wt% of a dispersant, 0.2 to 1 wt% of an antifoaming agent and 10 to 30 wt%
% Of an antioxidant, 2 to 10 wt% of an antioxidant, 2 to 10 wt% of an antioxidant, 1 to 20 wt% of an airgel, 30 to 60 wt% of an acrylic latex, 10 to 50 wt% of a rubber chip, 10 to 30 wt.% Of calcium carbonate, 0.5 to 3 wt.% Of a dispersant, 0.2 to 3 wt. ≪ / RTI >
3 to 20 wt% of acrylic latex, 3 to 20 wt% of ceramic hollow filler, 3 to 20 wt% of silica sand (No. 8, No. 9), 3 to 10 wt% of diatomaceous earth, 0.2 to 3 wt% of defoamer, 0.2 to 3 wt% %, And 1 to 5 wt% of a thickener, based on the total weight of the composition.
The method of claim 1,
The acrylic latex is obtained by copolymerizing acrylic acid (AA), methyl methacrylate (MMA), and 2-ethylhexyl acrylate (2-EHA) with butyl acrylate (BA) Composition.
delete The method of claim 1,
Wherein the airgel is a silica airgel powder or a hydrophobized aerogel powder.
The method of claim 1,
Wherein the aerogels are prepared by diluting methyl silicate with methanol, adding water, and subjecting the wet gel prepared by the hydrolysis and condensation reaction to aging and supercritical drying in an alcohol.
A lower coating step of applying a primer composition one or two times to a base surface of a concrete structure to form a primer layer having a thickness of 0.2 to 50 mm;
An intermediate coating step of coating a middle layer composition on the primer layer to form a middle elastic layer having a coating thickness of 1.5 mm to 100 mm;
And an upper coating step of forming an upper coating layer by applying a top coat composition on the intermediate elastic layer,
The undercoat composition comprises 30 to 60 wt% of an acrylic latex, 20 to 40 wt% of an inorganic silane resin, 1 to 10 wt% of a portland cement, 0.2 to 1 wt% of a dispersant, 0.2 to 1 wt% of an antifoaming agent and 10 to 30 wt%
Wherein the core material composition comprises 30 to 60 wt% of an acrylic latex, 10 to 50 wt% of a rubber chip, 10 to 30 wt% of calcium carbonate, 0.5 to 3 wt% of a dispersant, 0.2 to 3 wt% of a preservative, 1 to 5 wt% of a defoaming agent, , And 1 to 20 wt% of an airgel,
The topcoat composition comprises 30 to 60 wt% of an acrylic latex, 3 to 20 wt% of a ceramic hollow filler, 3 to 20 wt% of silica sand (No. 8, No. 9), 3 to 10 wt% of diatomaceous earth, 0.2 to 3 wt% of a defoaming agent, %, A pigment of 0.2 to 10 wt%, and a thickener of 1 to 5 wt% based on the total weight of the composite flooring composition.

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