KR101859113B1 - Functional flooring mortar composition and mortar flooring construction method therewith - Google Patents

Abstract

The present invention relates to a functional flooring mortar composition and a flooring mortar construction method using the same. The functional flooring mortar composition comprises: 10-90 wt% of a binding material; 5-80 wt% of fine aggregate; and 1-50 wt% of water. The binding material comprises: 20-90 wt% of white portland cement; 5-50 wt% of calcium or magnesiumsulfoaluminate; 0.1-20 wt% of fly ash; 01.-20 wt% of phyllite powder; 0.1-20 wt% of hollow silica powder; 0.1-20 wt% of calcium silica; 0.1-30 wt% of desulfurized gypsum; 0.1-10 wt% of sepiolite; 0.001-10 wt% of fibroferrite; 0.01-10 wt% of cyclohexylamine nitrite; 0.01-10 wt% of met hacrylate copolymer of ethylene-methyl acrylate; 0.01-10 wt% of copolymer of vinyl acetate-maleic acid diethyl; 0.001-5 wt% of a vegetable forming agent; and 0.01-5 wt% of a retarder. According to the present invention of the functional flooring mortar composition, fluidity and workability are enhanced, cracking is minimized, and pressure-feeding is enhanced, thereby reducing a construction period and enhancing construction quality. Due to self-flowability, labor costs and maintenance costs are reduced. As eco-friendly materials are used in the composition, the functional flooring mortar composition exhibits excellent humidity control, deodorizing, antibacterial, far-infrared radiation effects, and the like.

Description

TECHNICAL FIELD [0001] The present invention relates to a functional mortar composition and a method of constructing the mortar composition using the mortar composition.

More particularly, the present invention relates to a functional antistatic mortar composition, and more particularly, to an antistatic mortar composition and method for improving the fluidity and workability, minimizing the occurrence of cracks, To a functional antifungal mortar composition having humidity control, deodorizing effect, antimicrobial effect, far infrared effect and the like using an eco-friendly material, and a method of constructing a mortar using the same.

In general, dry mortar products, which are premixed with fine aggregates and various special admixtures based on ordinary portland cement, are produced and developed for various purposes. For example, as a repair material, a surface repair material as a repairing and reinforcing material, a grout material as an inner filling material, a building material for an inflatable filler or a floor construction, a plaster material, a parking lot flooring material, a shotcrete material, a covering material, .

However, most of the dried mortar products are made of cement and show various problems. Such a cement product has a weak adhesive force with itself and is not integrated with the matrix concrete, resulting in peeling and peeling in the joint. In addition, shrinkage such as shrinkage due to drying and self-shrinkage is very large, so that cracks due to shrinkage occur after construction. As a result, the penetration of the deterioration factor into the cracked portion is easy, and the durability is lowered. In addition, since the minimum construction thickness is 10 mm or more, the use amount is increased. In addition, there is a problem that the time (curing time) until the strength development after the application is relatively long, and the subsequent process is delayed.

On the other hand, dry cement mortar and wet cement mortar are used in the conventional cement mortar that is installed on the exterior of the building or the ondol structure. However, due to the lack of characteristics suitable for the tendency of the super high- The use of water and cement in order to secure fluidity and workability at the time of pressurization resulted in an increase in the aspect of cracks occurring at the time of construction, as well as a decrease in workability and an increase in labor costs. Also, as the quality of life of modern people is improved, it is demanded that construction materials for residential buildings are added to materials other than simple concrete materials.

The problem to be solved by the present invention is to provide a resin composition which is excellent in strength and durability and excellent in fluidity and workability, and is excellent in field applicability, workability, durability, adhesion property and waterproof property, It is easy to construct because of its excellent fluidity and does not cause material separation even during long distance transportation. It does not cause bleeding even during curing process, and it cures within a short time, shortening the construction period and reducing the construction cost. , A functional antifungal mortar composition having humidity control, deodorizing effect, antibacterial effect, far infrared effect and the like by using an eco-friendly material, and a method of constructing a mortar using the same.

As used herein, the term " vulcanized mortar " refers to a type of plastering that is generally abbreviated as " floor trough ". In this context, Refers to a mortar to be used and is a widely used term in the technical field. Generally, the building is installed with the piping structure for the ondol on the inner floor of a house or an apartment, and is usually constructed in large quantity using a remicon car and a pump. Therefore, the mixing of materials must be uniform, It is known that the floor finish material to be subsequently installed may cause lifting phenomenon, so it is a process that must be taken into consideration during construction.

The present invention provides a functional antistatic mortar composition comprising 10 to 90% by weight of a binder, 5 to 80% by weight of a fine aggregate, and 1 to 50% by weight of water.

The binder is usually 20 to 90% by weight of portland cement, 5 to 50% by weight of calcium or magnesium sulfoaluminate, 0.1 to 20% by weight of fly ash, 0.1 to 20% by weight of phyllite powder, 0.1 to 20% 0.1 to 30 wt% of calcium silicate, 0.1 to 30 wt% of desulfurized gypsum, 0.1 to 10 wt% of sepiolite, 0.001 to 10 wt% of fibrin glue, 0.01 to 10 wt% of cyclohexylamine nitrite, 0.01 to 10% by weight of an ethylene-methyl acrylate methacrylic copolymer, 0.01 to 10% by weight of a vinyl acetate-maleic acid diethyl copolymer, 0.001 to 5% by weight of a vegetable base foam and 0.01 to 5% have.

The fine aggregate comprises 50 to 95% by weight of silica silica and 5 to 50% by weight of sericite.

The binder may further comprise 0.1 to 20% by weight of bauxite to improve strength, abrasion resistance and fire resistance.

In addition, the binder may further contain 0.001 to 10% by weight of a starch thickener-polyvinylamine mixture mixed with starch thickener and polyvinylamine at a weight ratio of 1: 0.05 to 0.5 in order to improve viscosity and material separation resistance have.

In addition, the binder may further comprise 0.001 to 10% by weight of a methyl acrylate-vinyl chloride copolymer.

Further, the binder may further contain 0.001 to 10% by weight of at least one material selected from a polycarboxylic acid-based fluidizing agent, a naphthalene-based fluidizing agent and polyethylene oxide.

The present invention also provides a method of manufacturing a slab, comprising the steps of: removing latent, foreign matter, and impurities from a bottom surface of a slab by using a grinder, a water jet, etc. and cleaning the slab using a vacuum suction device; Applying a primer to prevent penetration and increase adhesion to a floor surface; placing the functionalized antistatic mortar composition on the applied top; curing the applied functional antistatic mortar composition; The method comprising the steps of: installing a heating piping at a predetermined interval on a cured upper part; placing the functional emulsion mortar composition on the installed upper part and finishing the surface by finishing the surface; and curing the mortar composition ≪ / RTI >

The functional antistatic mortar composition according to the present invention is excellent in field applicability, workability, durability, adhesiveness and durability, so that it is possible to increase the public period, reduce the maintenance cost, and improve the workability.

In addition, the functional antidandruff mortar composition of the present invention has an excellent fluidity, which can improve the compressibility and shorten the length of air, improve the quality of the construction, and reduce the labor cost and maintenance cost due to the magnetic smoothness.

In addition, it has harmless effect on the human body by using the environment-friendly material and having the function of controlling humidity, deodorizing effect, far-infrared ray effect and the like.

Hereinafter, preferred embodiments according to the present invention will be described in detail. However, it should be understood that the following embodiments are provided so that those skilled in the art will be able to fully understand the present invention, and that various modifications may be made without departing from the scope of the present invention. It is not.

A functional emulsion mortar composition according to a preferred embodiment of the present invention comprises a binder, fine aggregate and water. The functional antistatic mortar composition preferably comprises 10 to 90% by weight of a binder, 5 to 80% by weight of a fine aggregate, and 1 to 50% by weight of water.

The fine aggregate is preferably contained in the functional antifungal mortar composition in an amount of 5 to 80% by weight. The fine aggregate includes silica sand having a particle diameter in the range of 0.05 to 2 mm and aggregate materials having strong adsorption power and far-infrared ray emission, and have a bioactivity effect by emitting far-infrared rays, and include sericite to obtain humidity control and deodorization performance. The silica silica is preferably contained in an amount of 50 to 95% by weight based on the fine aggregate. It is preferable that the sericite is contained in an amount of 5 to 50% by weight based on the fine aggregate.

It is preferable that the binder is contained in the functional emulsion mortar composition in an amount of 10 to 90% by weight. Wherein the binder comprises 20 to 90% by weight of ordinary Portland cement, 5 to 50% by weight of calcium or magnesium sulfoaluminate, 0.1 to 20% by weight of fly ash, 0.1 to 20% by weight of phyllite powder, 0.1 to 20% 0.1 to 10 wt% of sepiolite, 0.001 to 10 wt% of pivaloate, 0.01 to 10 wt% of cyclohexylamine nitrite, and 0.1 to 10 wt% of ethylene-methyl 0.01 to 10 wt% of an ethylene-methyl acrylate methacrylic copolymer, 0.01 to 10 wt% of a vinyl acetate-maleic acid diethyl copolymer, 0.001 to 5 wt% of a vegetable base foam, and 0.01 to 5 wt% .

The ordinary Portland cement is preferably those specified in KS, and ordinary Portland cement distributed in the market can be used. The ordinary Portland cement is preferably contained in an amount of 20 to 90% by weight based on the binder.

The calcium or magnesium sulfoaluminate is an inorganic-based ultra-rapid-speed material. When it comes into contact with water, the calcium or magnesium sulfoaluminate is reacted with water in an instant to generate an ettringite hydrate. Thus, And the compressive strength of the cement can be obtained within a few hours. The calcium or magnesium sulfoaluminate is preferably contained in an amount of 5 to 50% by weight based on the binder. If the content of calcium or magnesium sulfoaluminate is less than 5% by weight, it is difficult to expect sufficient initial strength development. If the content of calcium or magnesium sulfoaluminate exceeds 50% by weight, initial strength development is excellent, but workability and economical efficiency may be deteriorated.

The fly ash and cemented carbide powders are inorganic hydrates of the hydration and pozzolanic reaction and improve the long term strength of the cement hardened body and tighten the hydrated structure of the hardened cement body to increase chemical resistance and durability. The fly ash and cyanobacterial powders are preferably contained in an amount of 0.1 to 40% by weight based on the binder. If the total content of the fly ash and cyanide powder is less than 0.2% by weight, the effect of improving long-term strength and improving durability may be insignificant. If the content is more than 40% by weight, initial strength development may be delayed.

The hollow silica powder is a porous material and has excellent adsorption power and is used to improve long-term strength and durability due to pozzolanic reaction. The hollow silica powder is preferably contained in an amount of 0.1 to 20% by weight based on the binder. If the content of the hollow silica powder is less than 0.1% by weight, the effect of improving the filling property becomes weak and the effect of improving the long-term strength and durability is insufficient. If the content of the hollow silica powder is more than 20% by weight, Can be lowered.

When calcium silicate is mixed with gypsum and mixed with water, it reacts to form etlin zeite, and when it is mixed with cement, it becomes swellable and is used to prevent initial strength development and drying shrinkage. The calcium silicate preferably contains 0.1 to 20% by weight of the binder. If the content of the calcium silicate is less than 0.1 wt%, it is difficult to expect sufficient initial strength development and shrinkage reduction effect. If the content exceeds 20 wt%, the shrinkage reduction effect is excellent, but the workability may be deteriorated.

The desulfurized gypsum is used to improve initial strength and shrinkage reduction effect. The desulfurization gypsum is preferably contained in an amount of 0.1 to 30% by weight based on the binder. If the content of the desulfurized gypsum is less than 0.1% by weight, the initial strength development and shrinkage reduction effect may be insufficient. If the content is more than 30% by weight, workability and water resistance may be deteriorated.

The sepiolite is used to improve the viscosity and the material separation resistance of the functional antistatic mortar composition. The amount of the sepiolite is preferably 0.1 to 10% by weight based on the weight of the binder. If the content of the sepiolite is less than 0.1% by weight, the effect of improving the viscosity and the material separation resistance may be insignificant. If the content exceeds 10% by weight, viscosity and workability may be lowered.

The fibrin perlite is used to lighten the functional antistatic mortar composition. The fibrin perlite is preferably contained in an amount of 0.001 to 10 wt% based on the binder. When the content of the fibrin perlite is less than 0.001% by weight, the effect of lighter weight may be weak. When the content of the fibrin perlite exceeds 10% by weight, workability and strength may be lowered.

The cyclohexylamine nitrite salt is used to improve strength and chemical resistance. The cyclohexylamine nitrite is preferably contained in an amount of 0.01 to 10 wt% based on the binder. When the weight ratio of the cyclohexylamine nitrite salt is increased, the strength and chemical resistance are exhibited. When the content of the cyclohexylamine nitrite salt is less than 0.01 wt%, the effect of improving the strength and chemical resistance may be insignificant, and the content of the cyclohexylamine nitrite salt If the content is more than 10% by weight, further improvement in performance can not be obtained and the production cost is increased, which is not economical.

The ethylene-methyl acrylate methacrylic copolymer is used for improving durability. The ethylene-methyl acrylate methacrylic copolymer is preferably contained in an amount of 0.01 to 10% by weight based on the binder. If the content of the ethylene-methyl acrylate methacrylic copolymer is more than 10% by weight, the endurance performance improvement effect is obvious but the economical efficiency is deteriorated. If the content is less than 0.01% by weight, the performance improvement effect is insufficient.

The vinyl acetate-diethyl maleate copolymer is used for improving the adhesion and durability. The vinyl acetate-maleic acid diethyl copolymer is preferably contained in an amount of 0.01 to 10% by weight based on the binder. If the content of the vinyl acetate-maleic acid diethyl copolymer exceeds 10% by weight, the endurance performance improvement effect is obvious but the economical efficiency is deteriorated. If the content is less than 0.01% by weight, the performance improvement effect is insufficient.

The vegetable base foaming agent is used as a main raw material for high biodegradability and has bubble stability and uniform foaming property so as to improve the light weight and heat insulation of the composition. As the vegetable base foaming agent, any one selected from saponin, gelatin, and carboxymethylcellulose is used. The vegetable base foaming agent is preferably contained in an amount of 0.01 to 10% by weight based on the binder. If the content of the vegetable base foaming agent is more than 10% by weight, the foaming property is improved but the strength and durability are deteriorated. If the content is less than 0.01% by weight, the effect of lightening and improving the heat insulating property is deteriorated.

The retarder is used for delaying rapid curing in order to ensure workability for a certain period of time, and it is preferable that the retarder is contained in an amount of 0.01 to 10 wt% with respect to the binder. Examples of the delaying agent include generally known substances such as glucose, glucose, a sugar such as dextran, glucuronic acid, malic acid, citric acid, an acid such as citric acid or a salt thereof, an aminocarboxylic acid, A salt thereof, a phosphonic acid or a derivative thereof, and a polyhydric alcohol such as glycerin. If the content of the retarder is less than 0.01% by weight, the reaction delay effect may be insignificant. If the content exceeds 10% by weight, the reaction may be accelerated and the workability may be deteriorated.

In addition, the binder may further contain 0.1 to 20% by weight of bauxite to improve strength, abrasion resistance and fire resistance. The bauxite is used for improving strength, abrasion resistance and fire resistance. The bauxite is preferably contained in an amount of 0.1 to 20% by weight based on the binder. If the content of the bauxite is less than 0.1 wt%, the workability is improved but the performance improvement effect is insufficient. If the content of the bauxite exceeds 20 wt%, the performance is improved but the price competitiveness is decreased.

The binder may further contain 0.001 to 10% by weight of a starch thickener-polyvinylamine mixture, which is a mixture of starch thickener and polyvinylamine in a weight ratio of 1: 0.05 to 0.5, in order to improve viscosity and material separation resistance . A mixture of starch thickener and polyvinylamine is used to improve viscosity and material separation resistance. It is preferable that the starch thickener-polyvinylamine mixture is a mixture of starch thickener and polyvinylamine at a weight ratio of 1: 0.05 to 0.5. The starch thickener-polyvinylamine mixture is preferably contained in an amount of 0.001 to 10 wt% based on the binder. When the content of the starch thickener-polyvinylamine mixture exceeds 10% by weight, viscosity increases and workability decreases. When the content of the starch-based thickener-polyvinylamine mixture is less than 0.001% by weight, material separation occurs.

In addition, the binder may further comprise 0.001 to 10% by weight of a methyl acrylate-vinyl chloride copolymer. The methyl acrylate-vinyl chloride copolymer is used to improve strength and durability. The methyl acrylate-vinyl chloride copolymer is preferably contained in an amount of 0.001 to 10% by weight based on the binder. If the content of the methyl acrylate-vinyl chloride copolymer exceeds 10% by weight, the performance is improved but the workability is lowered. If the content is less than 0.001% by weight, the performance improvement effect is insufficient.

Further, the binder may further contain 0.001 to 10% by weight of at least one material selected from a polycarboxylic acid-based fluidizing agent, a naphthalene-based fluidizing agent and polyethylene oxide. The fluidizing agent is used for improving workability and workability. The fluidizing agent is preferably contained in an amount of 0.001 to 10 wt% with respect to the binder. The fluidizing agent may be composed of at least one material selected from a polycarboxylic acid-based fluidizing agent, a naphthalene-based fluidizing agent, and polyethylene oxide.

The binder may further include a defoaming agent, and the defoaming agent is preferably contained in an amount of 0.01 to 5% by weight based on the binder. The antifoaming agent may be composed of at least one material selected from the group consisting of polyethers, silicones, ethyl alcohols and ethylene glycols.

The functional emulsion mortar composition according to a preferred embodiment of the present invention can be prepared by mixing a binder, a fine aggregate and water, wherein 10 to 90% by weight of the binder and 5 to 80% by weight of the fine aggregate are mixed using a forced mixer or a vacuum mixer The mixture is stirred for a predetermined time (for example, 2 to 10 minutes), pre-mixed, added with 1 to 50% by weight of water and stirred for a predetermined time (for example, 1 to 5 minutes) using a forced mixer or a continuous mixer, Followed by stirring to prepare a functional emulsion mortar composition.

The method for constructing the Mortar Mortar using the functional antistatic mortar composition according to the preferred embodiment of the present invention includes the steps of removing the laitance, foreign matter, and impurities of the bottom surface of the slab by using a grinder, a water jet, Applying a primer to the top of the cleaned top layer to prevent penetration of surface reinforcement, water, harmful substances, etc. and increase adhesion to the bottom surface; placing a functionalized antistatic mortar composition on the applied top; A step of curing the functionalized formaldehyde mortar composition, a step of installing a heating pipe at regular intervals on the cured upper part, a step of finishing the surface by inserting the functional emulsion mortar composition on the installed upper part, Curing step.

The primer may be composed of at least one material selected from styrene-butadiene copolymer, ethylene-vinyl acetate emulsion, and acrylic emulsion.

Hereinafter, embodiments of the functional emulsion mortar composition according to the present invention will be more specifically shown and the present invention is not limited by the following embodiments.

≪ Example 1 >

25% by weight of binder and 60% by weight of fine aggregate were added to a forced mixer and stirred. Further, 15% by weight of water was further mixed and stirred for 2 minutes to prepare a functional antifungal mortar composition.

The binder is composed of 40 wt% of ordinary Portland cement, 14 wt% of calcium or magnesium sulfoaluminate, 10 wt% of fly ash, 5 wt% of iron carbonate powder, 5 wt% of hollow silica powder, 5 wt% of calcium silicate, 5% by weight of gypsum, 5% by weight of sepiolite, 1% by weight of fibrillate, 1% by weight of cyclohexylamine nitrite, 1% by weight of ethylene-methyl acrylate methacrylic copolymer, 1% by weight of diethyl vinyl acetate- 1% by weight of a vegetable base foaming agent, 1% by weight of a retardation agent, 1% by weight of bauxite, 1% by weight of a starch thickener and a polyvinylamine mixture, 1% by weight of a methyl acrylate- And 1% by weight of a defoaming agent were mixed and used. The gypsum used was desulfurized gypsum. Carboxymethylcellulose was used as the vegetable base foaming agent. As the fluidizing agent, a polycarboxylic acid-based fluidizing agent was used. As the retarder, citric acid was used. The defoamer was a silicone defoamer.

In order to compare the physical properties of the functional antistatic mortar composition prepared according to Example 1 described above, a currently widely used cement mortar composition is shown as Comparative Example 1.

≪ Comparative Example 1 &

25 wt% of ordinary Portland cement and 67 wt% of fine aggregate were added to a forced mixer and stirred. 8 wt% of water was further mixed and then stirred for 2 minutes to prepare a cement mortar composition. At this time, 1 wt% of pearlite and 1 wt% of carboxymethylcellulose were added to ordinary portland cement.

The following test examples show experimental results comparing characteristics of Example 1 and Comparative Example 1 in order to more easily grasp the characteristics of Example 1 according to the present invention.

≪ Test Example 1 >

The compressive strength and water retention test were carried out with KS L 5220 (dry cement mortar) according to the formulation shown in Example 1 and Comparative Example 1, and the flexural strength and the adhesion strength were measured by KS F 2476 (test method of polymer cement mortar) And the rate of change of length were measured. The thermal conductivity test was performed by KS F 4039 and KS F 4042, the deodorization test was carried out by KFIA-FI-1004 (ammonia gas detection tube), and FT-IR spectrometer The far infrared ray radiation characteristics were measured with the blackbody contrast value, and the micro cracking resistance and impact resistance were measured by KS F 4716 (cement based base material). The results are shown in Table 1 below.

division Example 1 Comparative Example 1 Compressive strength (N / mm ² )
7 days 16.5 14.8 28th 20.5 18.1 Conservative (%) 82 78 Bending strength (N / mm ² ) 3.5 2.6 Adhesion strength (N / mm ² ) 1.0 0.7 Length change rate (28 days,%) 0.05 0.1 Thermal conductivity (W / mk) 0.52 0.82 Deodorization (%) 92 80 Far-infrared radiation energy (× 10 ² W / m ² · μm) 3.8 - Microcrack resistance clear Occur Impact resistance clear Splintering, peeling occurred

As shown in Table 1, it was found that the composition prepared according to Example 1 exhibited excellent performance as compared with the composition prepared according to Comparative Example 1.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, This is possible.

Claims (6)

The present invention relates to a mortar composition for use in an interior floor of a house or an apartment,
10 to 90% by weight of a binder, 5 to 80% by weight of a fine aggregate, and 1 to 50%
The binder is usually 20 to 90% by weight of portland cement, 5 to 50% by weight of calcium or magnesium sulfoaluminate, 0.1 to 20% by weight of fly ash, 0.1 to 20% by weight of phyllite powder, 0.1 to 20% 0.1 to 30 wt% of calcium silicate, 0.1 to 30 wt% of desulfurized gypsum, 0.1 to 10 wt% of sepiolite, 0.001 to 10 wt% of fibrin glue, 0.01 to 10 wt% of cyclohexylamine nitrite, 0.01 to 10% by weight of ethylene-methyl acrylate methacrylic, 0.01 to 10% by weight of diethyl vinyl acetate-maleic acid copolymer, 0.001 to 5% by weight of vegetable base foaming agent, 0.01 to 5% By weight of a starch thickener and 0.001 to 10% by weight of a starch thickener-polyvinylamine mixture, 0.001 to 10% by weight of a methyl acrylate-vinyl chloride copolymer, , Methyl acrylate-vinyl chloride copolymer And 0.001 to 10% by weight of at least one material selected from a polycarboxylic acid-based fluidizing agent, a naphthalene-based fluidizing agent and polyethylene oxide,
Wherein the fine aggregate comprises 50 to 95% by weight of silica silica and 5 to 50% by weight of sericite,
The thermal conductivity (W / mk) was 0.52 in the thermal conductivity test conducted according to KS F 4039 and KS F 4042 for the composition, and the deodorization (%) in the deodorization test conducted according to KFIA-FI-100 was 92 , And the far-infrared radiation energy (x 10 ² W / m ²占 퐉) measured by the black body contrast value using an FT-IR spectrometer is 3.8, and the micro cracking resistance and impact resistance measured according to KS F 4716 are abnormal Lt; RTI ID = 0.0 > 1, < / RTI >
delete delete delete delete A method of constructing a mortar with a functional anticorrosive mortar composition according to claim 1,
Cleaning the slab floor;
Applying a primer to reinforce the surface layer on the cleaned top, prevent penetration of water or toxic substances, and increase adhesion with the bottom surface;
Placing and curing the functional emulsion mortar composition on the coated top;
Installing a heating pipe at regular intervals on the cured upper part;
Placing the functional emulsion mortar composition on the installed upper part, finishing the surface by finishing the surface; And
And curing the mortar.