KR20140074587A - Construction method this rox and composition floor finishes inorganic of dangerous goods storage facility - Google Patents
Construction method this rox and composition floor finishes inorganic of dangerous goods storage facility Download PDFInfo
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- KR20140074587A KR20140074587A KR1020120142700A KR20120142700A KR20140074587A KR 20140074587 A KR20140074587 A KR 20140074587A KR 1020120142700 A KR1020120142700 A KR 1020120142700A KR 20120142700 A KR20120142700 A KR 20120142700A KR 20140074587 A KR20140074587 A KR 20140074587A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/02—Cellulosic materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
- C04B22/142—Sulfates
- C04B22/143—Calcium-sulfate
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
- C04B41/522—Multiple coatings, for one of the coatings of which at least one alternative is described
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
- C04B2103/0088—Compounds chosen for their latent hydraulic characteristics, e.g. pozzuolanes
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/34—Flow improvers
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/44—Thickening, gelling or viscosity increasing agents
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/50—Defoamers, air detrainers
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention relates to a composition and an application method of an inorganic floor finish of a hazardous material storage facility, and more particularly,
Removing the laitance, foreign matter, and exposed or damaged portions when the floor to be constructed is a concrete or cement mortar floor; Applying a water-soluble primer to the removed bottom surface using a spray, a brush, or a roller in an amount of about 30 to about 150 g / m 2; Drying the coated water-soluble primer for 30 minutes to 1 hour, mixing the powder composition and the liquid composition using a stirrer, and applying the coating composition to a thickness of 3 to 20 mm; When 5 hours have elapsed after the above-mentioned application, the step of applying the aqueous topcoat using a spray, a brush or a roller at a rate of about 50 to 120 g / m < 2 > and a step of 5 to 7 hours The present invention is an inorganic flooring finish which is stable even in an environment exposed to moisture and has ventilating properties to prevent lifting due to moisture generated at the concrete floor to be applied, The present invention relates to a mineral flooring composition for a hazardous material storage facility, and a method of using the inorganic flooring finish composition.
Description
The present invention relates to an inorganic flooring material for a hazardous material storage facility, and more particularly, to a flooring material for a hazardous material storage facility, which has a flammable property such as an epoxy flooring material, an epoxy resin flooring material, a urethane flooring material, a methyl methacrylate (MMA) It is possible to substitute the inorganic flooring finishing composition which is not flammable even in the event of fire in the case of a strong organic flooring material and to use a special primer having excellent adhesion to the organic flooring material without completely removing the flooring material , And can be constructed thereon, thereby reducing the construction period and the cost, thereby financially benefiting the finishing material.
The present invention is an inorganic floor finishing material which is stable even in an environment exposed to moisture and has air permeability to prevent lifting due to moisture generated in a concrete floor to be applied, thereby increasing durability and increasing the life expectancy of the floor finishing material The present invention relates to a mineral flooring composition for a hazardous material storage facility and a method of using the same.
Generally, floor of dangerous facilities such as gas station static pressure chamber, gas area static pressure chamber, oil room, apartment building parking lot, shopping mall parking lot, department store and large discount mart parking lot, floor of building parking lot such as hotel parking lot, floor of factory, hospital and public institution Is made of concrete or cement mortar and a floor finish is applied thereon. It is mainly applied to an organic resin such as an epoxy resin, an epoxy resin, a resin urethane resin, a methyl methacrylate resin, etc., a curing agent and an accelerator, a filler, And the like are applied to the bottom of the vaginal floor by the organic flooring material.
It is difficult to evolve due to the rapid propagation of flame due to the strong flammability at the time of fire when the existing organic flooring material is applied and harmful volatile organic compounds are generated and it can give health risks to the users after a certain period of time. And toxic gas is generated, causing a serious danger to the human body.
In addition, after a certain period of time after construction, concrete or cement mortar and organic flooring add additional reaction to cause the concrete and cement mortar to lose their alkalinity and become neutralized, which leads to deterioration and consequently to be contained in concrete or cement mortar The moisture on the evaporation screen weakens the adhesion to the interface between the concrete or the cement mortar and the organic flooring, and the peeling phenomenon occurs.
In this situation, when the loads of the inspectors and users of the dangerous goods storage facility, the vehicles of various parking lots, the vehicles of factories, and the user's loads are applied, the portions where the peeling and lifting phenomenon occur are easily broken and the characteristics of the floor finishing material are lost , Dust is generated in deteriorated concrete or cement mortar, and air pollution occurs in dangerous storage facilities, parking lot, etc., and it is harmful to human body.
In addition, a product manufacturing factory such as a factory acts as a foreign substance and adversely affects the quality of a product to be produced.
Looking at the prior art in this field,
The inorganic pigment composition for flooring and the method for producing the same according to the present invention include 35 to 40% by weight of an acrylic urethane hybrid resin, 2.0 to 5.0% by weight of a dispersant, 0.2 to 0.5% by weight of a color separation inhibitor 1 to 60% by weight of a pigment group containing at least one kind of an inorganic pigment, 0.5 to 1.0% by weight of a coating preparation, 0.1 to 0.7% by weight of an antifoaming agent, 0.5 to 2.0% An inorganic pigment composition for flooring is disclosed which is prepared by mixing 3 to 6% by weight of water and 20 to 5.0% by weight of a diluent and then adding 0.3 to 1.0% by weight of a pH adjuster.
In the prior art 1, in general, a powder type pigment or an organic type pigment having a low hydrophilicity is used in order to color the entire bottom layer in various colors by mixing with a bottom material. As a result, the binding force or coloring power of the pigment is decreased Therefore, it is understood that the bottom layer tends to be easily damaged.
As another prior art, the environmentally friendly inorganic-based fire retardant color mortar flooring composition of JP-A-1038769 (Prior Art 2) and a method for its production are disclosed in JP-A- , Wherein the composition for the intermediate is comprised of an intermediate fire retardant color mortar mixture having a weight of 75% by weight based on the total weight of the composition for the intermediate weight and 25% by weight of water, wherein the moderate inorganic non- The mixture contains 20 to 30 wt% of cement and 37 to 47 wt% of wollastonite aggregate having a particle size of 3 mm to 0.1 mm with respect to the total weight of the medium inorganic flame-retardant color mortar mixture, and 5 to 7 wt% From 0.005 to 0.015% by weight of thickener or defoamer, from 4 to 6% by weight of anhydrous gypsum, from 4 to 5% by weight of 300 mesh wollastonite
And a redispersible resin powder of from 5.75 to 5.85% by weight, and from 0.5 to 5% by weight of a powder of kaolin, kaolin, 6-8 wt% of kaolin powder, 0.15-0.25 wt% of dispersant powder, 0.005-0.015 wt% of accelerator, 2-4 wt% An inorganic fire retardant color mortar flooring composition containing 1.5% by weight of an antimicrobial agent is disclosed.
In the prior art 2, unsaturated polyester is used as a finishing material for a floor surface requiring fire resistance such as the floor of a conventional chemical factory, but unsaturated polyester exhibits a shrinkage ratio of 5 to 10% When the unsaturated polyester is applied alone on the concrete floor, the unsaturated polyester is peeled off from the bottom of the concrete, and cracks, leaks, dust, wear, running noise, oil pollution and corrosion due to calcium chloride It is seen that there are various problems such as frequent occurrences.
However, in the prior art 1, a plurality of pigment compositions such as an inorganic pigment and an extender pigment, which are mainly composed of an acrylic urethane hybrid resin capable of drying at room temperature, and the like, such as a ceramic mortar self-leveling agent or an organic composite mortar, However, when it is used as a floor material for dangerous facilities such as a gas static pressure chamber, a gas static pressure chamber, and a oil room, there is a problem that it is not suitable as a flame retardant flooring for preventing color change and fire. Nonflammable and breathable raw materials are used, however, there is a nonflammability. However, there is a problem in that the construction is inconvenient and the composition of the flooring material is excessively required because it is required to be divided into a middle part and a middle part.
The present invention does not cause damage to constructors and users due to no occurrence of harmful volatile organic compounds, which is a problem that occurs in conventional organic flooring materials, and does not directly affect a hazardous material storage facility because a flame does not propagate in the event of a fire , The parking lot of various buildings, the parking lot of the hospital, the factory, etc., the flame does not propagate even in the event of a fire, so that the direct damage caused by the flooring can be suppressed, thereby protecting the human body and property.
In addition, since the composition of the present invention is made of a material such as concrete or cement mortar, which is the bottom surface to be applied, there is no sense of heterogeneity in the adhesion interface, and the moisture trapped in the interior is ventilated. Therefore, it is possible to increase the durability of the flooring finishing material due to no peeling or lifting phenomenon, thereby extending the life expectancy of the flooring finishing material and to provide convenience and economy.
In order to solve the object of the present invention, the floor finishing composition of a site to be installed in a dangerous-
1) The primer having excellent adhesion to the organic flooring material and the inorganic flooring material is composed of 53 to 70% by weight of non-ionic styrene and acrylic copolymer emulsion, 0.1 to 1% by weight of defoamer, 0.1 to 1% by weight of thickener, 45% by weight of water-soluble primer.
2-1) 18-23% by weight of Portland cement, 1-5% by weight of pozzolanic substance, 2-7% by weight of anhydrous gypsum, 0.5-3.5% by weight of slaked lime, 5-10% 0.05 to 0.3 wt% of a thickener, 1 to 3 wt% of an expanding agent, 0.03 to 0.2 wt% of a defoaming agent, 0.01 to 0.1 wt% of a retarder, 0.06 to 0.2 wt% of a curing accelerator, 1.5 to 4 wt% of a pigment, By weight, 0.5 to 3% by weight of a powdery resin, and 39 to 70% by weight of sand.
2-2) A liquid composition comprising 35 to 70% by weight of a water-soluble acrylic emulsion, 0.1 to 0.7% by weight of a mineral oil defoaming agent, 0.1 to 0.3% by weight of a wetting agent and 29.8 to 64% by weight of water is prepared.
The powder composition formed in the above 2-1) may contain at least one selected from the group consisting of Portland cement, pozzolanic material, anhydrous gypsum, slaked lime, internal economizer, fluidizing agent, thickener, expanding agent, defoamer, retarder, curing accelerator, pigment, 20 to 32% by weight of a liquid composition consisting of a water-soluble acrylic emulsion, antifoaming agent, wetting agent and water constituted in 2-2) is mixed with 100% by weight of a powder composition obtained by mixing do.
3) The water-based topcoat applied to the surface after the inorganic flooring finish is applied to the surface is composed of 84-98% by weight of emulsion synthesized with acrylic emulsion and silane, defoamer and water, 1 ~ 10% by weight of antistatic agent, 1 ~ 6% by weight of flame retardant To prepare an aqueous phase topping agent.
The composition of the present invention thus prepared overcomes the problems of existing organic flooring materials, overcomes the problems caused by fire or static electricity, and improves durability, thereby providing a safety and economical advantage composition do.
The composition of the present invention thus prepared overcomes the problems of the existing organic flooring material as a bottom finishing material for a dangerous goods storage facility and removes the flooring material that is applied when the flooring material is reused on the flooring that has been previously applied, To prevent the risk of fire caused by the explosion in the dangerous goods storage facility, the antifouling agent is contained in the top coat agent after the floor finishing material is applied. Therefore, Secondary damage due to static electricity that can be generated can be suppressed, which is effective. The durability and the curing time are shortened, which is advantageous in terms of safety management and economics of the inspectors and users.
In order to accomplish the above object, the present invention provides a water-soluble primer composition comprising a styrene and an acrylic copolymer emulsion, a defoaming agent, a thickener, and water as a primer having excellent adhesion to an organic flooring material and an inorganic flooring material .
A powder composition obtained by mixing Portland cement, pozzolanic substance, anhydrous gypsum, slaked lime, internal economy, fluidizing agent, thickener, expanding agent, antifoaming agent, retarding agent, hardening accelerator, pigment, powdered resin,
An inorganic flooring finish composition of a hazardous material storage facility is provided by mixing a liquid composition consisting of a water-soluble acrylic emulsion, defoamer, humectant and water
The aqueous topcoat composition is provided with an aqueous topcoat composition comprising an acrylic emulsion, a silane, a defoamer, an emulsion in which water is synthesized, an antistatic agent, and a flame retardant.
The emulsion constituting the primer in the present invention is a copolymer of styrene and acrylic copolymer (solid content: 48%), and has a viscosity of 1,000 to 2,500 mPa s s and a MFFT (Minimum Film Forming Temperature) of 0 캜, And a little stickiness remains even after drying. The emulsion is used in the range of 53 to 70% by weight in the primer composition.
The liquid defoaming agent constituting the primer according to the present invention may be prepared by mixing two kinds of mineral oil defoaming agents up to 0.1 to 1% by weight in order to suppress bubbles generated during the production of the primer. That is, by mixing two kinds of the same mineral oil-based components than by using one mineral oil-based component, the use amount can be reduced and the vesicle function can be increased.
The main component of the liquid thickening agent constituting the primer of the present invention is ethylene oxide urethane, which is used for increasing the viscosity of the primer to increase the adhesion. In this case, the liquid thickening agent is used in the range of 0.1 to 1 wt% in the primer composition.
Water constituting the primer in the present invention uses tap water within the range of 29.8 to 45 wt%.
In the cement constituting the powder composition of the present invention, one or two or more kinds of white cement or ordinary Portland cement selected to meet the required color are used. These cements are used in the range of 18 to 23% by weight in the inorganic binder mixture.
The pozzolan constituting the powder composition of the present invention is substantially free of hydraulic hardness in itself, but it is preferable that the water present in the mortar or concrete reacts with calcium hydroxide at room temperature to produce a siliceous or aluminum- The representative materials are fly ash generated in dust collecting facilities of thermal power plants, slag powder produced as a by-product in steel industry, and waste gas generated in producing silicon, ferro silicon, silicon alloy, etc. There is silica fume, which is a by-product of ultrafine particles obtained by collecting silicon dioxide with a dust collector. These pozzolanic substances prevent initial cracking by suppressing the heat of hydration of mortar or concrete, affect the long-term increase in compressive strength, improve the watertightness and reduce damage to freezing and thawing, and deterioration of mortar or concrete due to neutralization There is an advantage that it can be reduced.
The use of the pozzolanic substance in the present invention is one or two or more kinds among fly ash, slag powder and silica fume. Such a pozzolanic substance is used in the range of 1 to 5 wt% in the powder composition, and when it is more than 5 wt%, unreacted material is generated, which hinders physical performance such as compression strength and curing time. It becomes meaningless.
In the present invention, gypsum is used as the gypsum constituting the powder composition to impart reactivity to the cementitious composition. Examples of the gypsum include gypsum anhydrite (CaSO4), hemihydrate gypsum (CaSO4 · 1/2 H2O) 2H2O). In the present invention, 2 to 7% by weight of natural anhydrous gypsum having a content of CaO of not more than 45% by weight and not less than 46% by weight of SO 3 is used. When less than 2% by weight is used, Over-expansion occurs due to excessive reaction during use.
In the present invention, slaked lime is used in the powder composition. The effect plays an auxiliary role in the hardening time of the above economy. The slaked lime is used in the range of 0.5 to 3.5 wt% in the powder composition, and when it is more than 3.5 wt%, the hardening is delayed and the overhang occurs to cause destruction of the hardened body.
In the fast economy constituting the powder composition of the present invention, one to two or more kinds of high-speed cement, alumina cement with an Al 2 O 3 content of 50 wt% or more and calcium sulphur aluminate with an Al 2 O 3 content of 32 wt% do. The speed economy is in the range of 5 to 10% by weight in the powder composition, and when it is more than 10% by weight, the curing time is too fast and smooth construction is not achieved.
In the present invention, the fluidizing agent constituting the powder composition is mixed with one or two kinds of fluidizing agents such as naphthalene type, melamine type and polycarboxylic type. In this case, in the present invention, it is necessary to use up to 0.3 to 1.2% by weight of the powder composition to exhibit the properties required in the present invention. When the content is less than 0.3% by weight, self leveling property can not be exhibited, When the amount is more than 1.2% by weight, problems such as material separation and bleeding may occur.
In the present invention, the thickener constituting the powder composition includes cellulose-based thickener, starch-based thickener, xanthan gum-based thickener and the like. Particularly, the natural thickener, xanthan, The polysaccharide gum obtained by pure fermentation of carbohydrates by using Xanthomonas Campestris was purified, dried and pulverized in isopropyl alcohol. Sodium, potassium and calcium salts of glucose, mannose and glucuronic acid ≪ / RTI > It is a pale yellow powder which is well soluble in water and the solution is neutral. It dissolves in water and does not dissolve in ethanol. Particularly, they are dispersed in cold water and dissolve in hot water. It has excellent heat resistance, and especially in the presence of glacial acetic acid, citric acid and the like, the viscosity is lowered even when heated. Natural thickener such as xanthan gum is stable even in the range of pH 2 ~ 13 when viscosity of acidic or alkaline substance coexists, but viscosity does not decrease due to black color pH of xanthan gum. Zanthanum Black has a higher viscosity than other thickeners and gradually increases viscosity according to the concentration.
In the present invention, a xanthan gum thickener is used which is resistant to alkaline, excellent in bleeding inhibition, does not cause material separation, and does not delay curing time, thereby preventing a drop in initial strength.
At this time, in the present invention, it is necessary to use 0.05 to 0.3% by weight of the xanthan gum thickener in the powder composition to exhibit the properties required in the present invention. When the amount is less than 0.05% by weight, material separation occurs during the construction of the inorganic floor finish, Dust is generated after curing and the quality of the construction is lowered. If the content exceeds 0.3% by weight, aggregation occurs excessively and the liquid mixture is excessively used, which causes bleeding due to material separation, resulting in deterioration of the construction quality.
In the present invention, the CSA-based expanding material is used in the range of 1 to 3% by weight of the powder composition, and only the expansion and contraction compensation is performed.
That is, in consideration of shrinkage, which is a fatal disadvantage of cement, by using an expanding agent, the shrinkage of the cement is suppressed so that the expansion is caused only to the extent that the over-expansion or expansion is not insufficient. When the amount of the above-mentioned 3 weight% or more is used, excessive expansion occurs and the cured product is broken, and the overall physical properties are rapidly deteriorated.
In the present invention, the antifoaming agent constituting the powder composition is a white fine powder which is dispersible in water and which is easily dispersed in water, thereby suppressing bubbling and increasing the watertightness. The defoamer for powder is added to the composition in an amount of 0.03 to 0.2% by weight, and when the weight% is mixed, the defoaming effect of the foam is remarkably exhibited.
In the present invention, the retarder constituting the powder composition has a function of inhibiting the formation of cement hydrate and freely adjusts the curing time, and examples thereof include gluconic acid, citric acid, oxycarboxylic acid-based compounds and saccharides. In the present invention, To 2% by weight of the powder composition.
Examples of the curing accelerator constituting the powder composition in the present invention include inorganic and organic compounds. Examples of inorganic curing accelerators include chlorides and alkaline carbonates such as CaCl 2 , Na 2 CO 3 , Al (OH) 3 and NaAlO 2 , , Water glass, etc. There are other cement minerals, organic ones include glycerin and triethanolamine (TEA).
In the present invention, 0.06 to 0.2% by weight of at least one or more curing accelerators are used in the inorganic material.
In the present invention, the pigments constituting the powder composition include inorganic pigments and organic pigments. The organic pigments tend to be discolored because of their high coloring power, but are often not durable against heat and light. On the other hand, It is chemically stable against heat, light, alkali and has great hiding power.
In the present invention, 1.5 to 4% by weight of a chemically stable oxide-based inorganic pigment is used as a pigment in the powder composition. When the amount is more than 4% by weight, the hiding power is good, but the excess portion acts as an impurity and the compressive strength remarkably drops.
The powdered resin constituting the powder composition of the present invention uses an EVA (ethylene vinyl acetate) -based re-oiled powder resin and is effective in suppressing cracking due to its water resistance, impact resistance and moisturizing effect. In the present invention, 0.5 to 3% by weight of the powder composition is used.
The natural fiber constituting the powder composition according to the present invention has an effect of preventing cracks that may occur during the curing time and plays an auxiliary role in the thickening agent, so that stable construction can be achieved without causing material separation and bleeding as a whole have. In the present invention, 0.05 to 0.5% by weight of the powder composition is used.
Since the sand constituting the powder composition of the present invention is strong in abrasion resistance and water content influences the mixing and manufacturing of the powder composition, it is possible to use dry sand having good particle size and fine shape management of the sand. The amount of sand in the powder composition is in the range of 39 to 70 wt%, considering the specific gravity of the sand, .
The water-soluble acrylic emulsion constituting the liquid composition in the present invention has a solid content of 48 ± 2 and a minimum film forming temperature (MFF) of 3 ° C. and is used in an amount of 35 to 70% by weight. .
The liquid defoaming agent constituting the liquid composition according to the present invention may be prepared by mixing two kinds of mineral oil type defoaming agent up to 0.1 to 0.7 wt% in order to suppress the bubbles which may be generated when mixing with the powder composition. That is, by mixing two kinds of the same mineral oil-based components than by using one mineral oil-based component, the use amount can be reduced and the vesicle function can be increased.
The wetting agent constituting the liquid composition in the present invention uses a low viscosity wetting agent as a surfactant for uniform mixing of the water-soluble acrylic emulsion and the powder composition, and 0.1 to 0.3% by weight of the liquid composition is used.
In the liquid composition of the present invention, pure water not mixed with impurities unnecessary for the cement hydration reaction is mixed with 29.8-64 wt% in addition to the above components. Water containing impurities adversely affects condensation, hardening, strength development, volume change, etc. Therefore, groundwater is not used and tap water is used.
The components of the emulsion (solid content: 35%) constituting the aqueous topcoat in the present invention are synthesized with pure acrylic emulsion, water, defoamer and silane having a strong penetration ability on the surface after the floor finish is applied, It is used within the range of% by weight.
The antistatic agent constituting the aqueous topcoat in the present invention is an antistatic agent which is added to plastics or added to the surface of a finished product to reduce or remove static electricity formed on the surface of the product. Static electricity can cause loss of productivity, fire, electric shock, and dust adsorption. In order to improve the electrostatic property by such static electricity, there are a method of introducing hydrophilicity by chemically treating the surface, a method of grafting a hydrophilic monomer, a method of adding a material of a good conductor such as a metal powder, The most commonly used method due to productivity problems is the use of antistatic agents. The antistatic agent used in the aqueous phase in the present invention is an amine based antistatic agent and is used in an amount of 1 to 10% by weight based on the aqueous phase.
In the flame retardant constituting the aqueous topcoat in the present invention, plastic is easy to burn, and when it is burned, high temperature, black smoke and toxic gas are generated and become a source of pollution, so a flame retardant is added to suppress combustion. Examples of the flame retardant include tricresyl phosphate, chlorinated paraffin, and inorganic materials such as antimony oxide, ammonium phosphate, and boric acid. Examples of the reactive flame retardant include a brominated polyol, a phosphorus polyol, and a halogenated phthalic anhydride. The flame retardant used in the aqueous topcoat in the present invention is ammonium phosphate, which is used in the range of 1 to 6 wt% of the aqueous phase topping agent.
Hereinafter, the inorganic flooring finish composition of the hazardous material storage facility and the construction method using the same will be described in detail.
Table 1 shows the quality standards of the self-level mortar of the mineral flooring finish.
Table 2 shows the mixing ratio of the inorganic flooring finish.
According to the test results in Table 3, it can be seen that the difference between the selection of the thickening agent in Examples 1 and 2 and the Comparative Example 1 is that the xanthan gum thickener applied in Example 1 and Example 2 of the present invention It is understood that the use does not affect the flow value and the occurrence of bleeding is suppressed and the alkali is stronger than the cellulose type thickening agent applied in Comparative Example 1 and does not greatly affect the curing time and compressive strength.
Also, according to the test results, the difference in curing time can be known depending on whether or not the economy is used in Examples 1 and 2. In the case of using the calcium sulphoaluminate-based economy applied in Example 1 of the present invention, If the vehicle opening time is 5N / mm2 or more after the road construction, it is suggested by the Japan Road Authority. In the present invention, since it is necessary to carry out the daily inspection even after installation in the dangerous material storage facility installed in the present invention, it can be inspected within 5 to 7 hours. Also, it can be seen that cracks due to shrinkage do not occur as in Comparative Example 2 due to shortening of curing time.
Also, according to the test results, in Examples 1 and 3, it is possible to determine whether cracks have occurred after construction according to whether natural fibers are used or not. The use of natural fibers having a length of 200 to 600 mu m as applied in Example 1 of the present invention can suppress the generation of cracks and does not greatly affect the flow value due to the increase in viscosity and the length of the natural fibers is very short, Which is not exposed to water.
On the other hand, in Comparative Example 3, fine cracks due to plastic shrinkage occurred due to the non-use of natural fibers.
Table 4 shows changes over time after application of the inorganic flooring finish for each type of primer.
※ Condition 1: Application of primer on concrete floor,
Condition 2: The result of applying the primer to the base finish material of Example 1 after application of the primer onto the epoxy flooring applied in the past shows an elongation phenomenon over time.
X: No change. O: Extension occurred
Example 3 of the present invention was the same as that of Example 3 except that the nonionic styrene and acrylic copolymer emulsion (having a solid content of 48%, a viscosity of 1,000 to 2,500 mPa s, a MFFT (Minimum Film Forming Temperature) of 0 캜) of 63% By weight, 0.3% by weight of a thickener, and 36% by weight of water. According to the above test results, all three types of organic primers occurred in the condition 2 according to the time after the application. However, the primer of Example 2 shown in the present invention showed no lifting phenomenon even after 12 months, It can be seen that it is a suitable primer even if it is applied on the floor finish material.
Table 5 shows surface resistance and flame retardant performance of the aqueous phase topping agent.
The test results are shown in Table 4. The results of the test are shown in the results of applying the aqueous top coat agent on the surface after the inorganic floor finish agent application. In Example 4, the surface resistance was improved and the flame retardant agent was excellent due to the use of the flame retardant agent.
A mixture of the powder composition of Example 1 and the liquid composition, the composition of the primer of Example 3, and the composition of the aqueous topcoat of Example 4 were prepared and applied in the following manner.
Step 1: If the floor to be constructed is a concrete or cement mortar floor, remove the lateness or foreign matter, or if the floor surface to be constructed is a flooring that has been applied, remove the exposed or damaged part to avoid friction.
Step 2: The primer of the present invention is applied to the removed bottom surface by using a spray, a brush or a roller at about 30 to 150 g / m 2.
Step 3: After drying the primer for 30 minutes to 1 hour, the powder composition of the present invention and the liquid composition are mixed using a stirrer, and the required thickness of the coating is applied within a range of 3 to 20 mm thickness. A spike roller or the like is used.
Step 4: Since it is possible to walk after about 5 hours after the application, the aqueous topcoat of the present invention is applied by spraying, brush or roller at about 50 to 120 g / m 2, and is opened when the surface is not tacky.
The present invention overcomes the problems of the existing organic flooring material with the floor finishing material of the dangerous goods storage facility and the flame is generated by the physical collision between the eliminator and the flooring material in removing the flooring material when re- It is applied without removing the flooring material to suppress the risk of fire caused by the explosion in the dangerous goods storage facility. Since the antistatic agent is contained in the topcoat after the floor finishing material is applied, Secondary damage due to static electricity can be suppressed, which is effective. The durability and the curing time are shortened, which is advantageous in terms of safety management and economics of the inspectors and users.
In particular, since the antistatic agent of the present invention contains an antistatic agent, secondary damages due to static electricity, which may be generated in a hazardous material storage facility, can be suppressed, and in order to remove the organic flooring, If a fire is generated by a physical collision between the eliminator and the flooring, it is a risk factor that a secondary explosion may occur in a hazardous material storage facility.
For this reason, the deteriorated organic flooring can not be removed mechanically, and therefore, the repairs are repeatedly performed in a relatively short period of time. However, the primer used in the flooring finishing material of the present invention is a special primer having excellent adhesion to the organic flooring It has excellent durability because it does not peel off without peeling off completely without mechanical removal because it has good adhesion with existing flooring material of deteriorated oil mill.
Also, when re-installing on existing flooring of hazardous materials storage facility, existing organic flooring or inorganic flooring should be available for more than 1 day after installation. Inspectors and safety managers should check every day from time to time. The floor finish of the present invention is excellent in hardenability and therefore it is difficult to perform safety management because it can be walked for 5 to 7 hours after the construction depending on the curing environment none.
The present invention can be applied to the floor of dangerous facilities such as the gas earth static pressure chamber, the gas static pressure chamber, and the oil room, the floor of the building such as the apartment parking lot, the mall parking lot, the department store and the large discount mart parking lot, Since the floor where the floor material storage facility of the engine is present is made by the inorganic flooring finishing composition and the construction method using the flooring composition, the antistatic agent is contained in the topping agent after the floor finishing material is applied, so that static electricity And it is advantageous in terms of safety management and economics of the inspectors and users due to increase in durability and shortening of curing time.
Claims (13)
Wherein the liquid composition is mixed with a water-soluble acrylic emulsion, a mineral oil-based defoaming agent, a wetting agent and water, and 20 to 32 wt% of the liquid composition is mixed with 100 wt% of the powder composition.
The powder composition comprises 18 to 23 wt% of Portland cement, 1 to 5 wt% of pozzolanic substance, 2 to 7 wt% of anhydrous gypsum, 0.5 to 3.5 wt% of slaked lime, 5 to 10 wt% 0.05 to 0.3 wt% of a thickener, 1 to 3 wt% of an expanding agent, 0.03 to 0.2 wt% of a defoaming agent, 0.01 to 0.1 wt% of a retarder, 0.06 to 0.2 wt% of a curing accelerator, 1.5 to 4 wt% of a pigment, By weight of a powdered resin, 0.5 to 3% by weight of a powdered resin, and 39 to 70% by weight of sand.
The liquid composition comprises a mineral floor of a hazardous material storage facility characterized by a liquid composition mixed with 35 to 70% by weight of a water-soluble acrylic emulsion, 0.1 to 0.7% by weight of a mineral oil defoamer, 0.1 to 0.3% by weight of a wetting agent and 29.8 to 64% Finishing composition.
Wherein the powder composition comprises 0.05 to 0.3% by weight of xanthan gum thickener.
Characterized in that 0.05 to 0.3% by weight of xanthan gum thickener and 0.05 to 0.5% by weight of natural fiber are used together in the powder composition.
Wherein the powdery resin of the powder composition comprises 0.5 to 3% by weight of an EVA (ethylene vinyl acetate) re-oil type powder resin.
The liquid composition has a water-soluble acrylic emulsion having a solid content of 48 ± 2,
And a MFFT (Minimum Film Forming Temperature) of 3 占 폚.
Wherein the water-soluble primer composition has a non-ionic styrene and acrylic copolymer emulsion having a solid content of 48%, a viscosity of 1,000 to 2,500 mPa s s and a MFFT (Minimum Film Forming Temperature) of 0 캜. Floor finish composition.
Wherein the thickener of the water-soluble primer composition is 0.1-1 wt% of ethylene oxide-urethane thickener.
Wherein the emulsion of the aqueous topcoat composition comprises silane. ≪ RTI ID = 0.0 > 15. < / RTI >
Removing the laitance, foreign matter and exposed or damaged portions when the floor to be constructed is a concrete or cement mortar floor;
Applying a water-soluble primer to the removed bottom surface using a spray, a brush, or a roller in an amount of about 30 to about 150 g / m 2;
Drying the coated water-soluble primer for 30 minutes to 1 hour, mixing the powder composition and the liquid composition using a stirrer, and applying the coating composition to a thickness of 3 to 20 mm;
Coating the aqueous topcoat with a spraying agent, a brush or a roller in an amount of about 50 to 120 g / m < 2 >, and when the applied surface is not tacky, Construction method of mineral floor finishing materials.
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