WO2015034164A1 - 콘크리트 함수율 100% 습윤상태에서 프라이머 없이 시공이 가능한 무기질계 중성화방지, 방수, 방식, 바닥마감재 도료 조성물과 이를 이용한 중성화방지, 방수, 방식, 바닥재 시공방법 - Google Patents

콘크리트 함수율 100% 습윤상태에서 프라이머 없이 시공이 가능한 무기질계 중성화방지, 방수, 방식, 바닥마감재 도료 조성물과 이를 이용한 중성화방지, 방수, 방식, 바닥재 시공방법 Download PDF

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WO2015034164A1
WO2015034164A1 PCT/KR2014/005236 KR2014005236W WO2015034164A1 WO 2015034164 A1 WO2015034164 A1 WO 2015034164A1 KR 2014005236 W KR2014005236 W KR 2014005236W WO 2015034164 A1 WO2015034164 A1 WO 2015034164A1
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weight
parts
inorganic
proof
powder
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PCT/KR2014/005236
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English (en)
French (fr)
Korean (ko)
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신영태
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주식회사 대명콘스텍
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Priority to CN201480059491.5A priority Critical patent/CN105722805B/zh
Publication of WO2015034164A1 publication Critical patent/WO2015034164A1/ko

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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
    • C04B28/06—Aluminous cements
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
    • C04B2111/00293—Materials impermeable to liquids
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482—Coating or impregnation materials
    • C04B2111/00508—Cement paints
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/60—Flooring materials
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the present invention relates to an inorganic anti-neutralization, waterproof, anticorrosive, floor finishing material coating composition and a method for constructing anti-neutralization, waterproof, anticorrosive, flooring using the same, concrete structure even in the air humidity 100%, concrete moisture content 100% state without the application of primer Eco-friendly inorganic material that is applied directly on the surface of the base, has excellent adhesion, impact resistance, breathability and slip resistance, chemical resistance, water resistance, abrasion resistance, and nonflammability, and does not require primer applicable as anti-neutralization, waterproof, anticorrosive, and floor finishing material. It relates to a coating composition and a construction method using the same.
  • the pillars, beams, walls and floors of concrete and steel structures are the most frequently used structural members that are most intimately contacted by residents or users, and should not be harmful to human health.
  • the concrete used for this (base) is formed by hydration with cement, and has low chemical resistance such as acid resistance and chemical resistance, and low abrasion resistance due to its incomplete texture, which causes dust in the room, causing discomfort to residents.
  • chemical resistance such as acid resistance and chemical resistance
  • low abrasion resistance due to its incomplete texture, which causes dust in the room, causing discomfort to residents.
  • finishing materials used for concrete protection and sanitary purposes have been increasing since the 1980s due to the explosive increase in the population density of the metropolitan area and the number of registered automobiles in Korea. Especially, the activation of underground parking lot prevents the development and application of floor finishing materials. It became a factor to further promote.
  • the organic type is a product using epoxy or urethane resin. It is a polymer type that forms a cross-linking type at room temperature. It is manufactured as a petrochemical derivative, and has excellent texture and almost color as desired. Therefore, it can give elasticity and anti-slip function, and it is quick to dry and relatively easy to maintain after construction.
  • organic coating agents such as epoxy and urethane are harmful to the human body and make the working environment poor, and the bottom coating layer formed of the organic coating agent has problems of noise generation and flammability.
  • the conventional organic coatings have excellent adhesion with concrete, but durability is degraded because of the fact that the four seasons are clear due to the high strength of the material itself and the large difference in coefficient of thermal expansion with the concrete. Or defects such as frequent repairs.
  • the coating method also includes sand and silica sand when finishing the coating after coating the base coat. It is a method of forming irregularities on the finish surface by spraying or repainting with an embossing coat, which is accompanied by difficulties in construction, and over time, sand and silica were removed, and dust was removed in the grooves from which silica was removed. Due to this contamination, the appearance and environmental damage is poor, the construction time takes a relatively long disadvantage.
  • the inorganic flooring material can be largely classified into powder hardener, inorganic liquid hardeners, polymer cement mortar, etc.
  • the powder hardner exhibits a relatively good performance at a reasonable price / cost ratio. It is well known that it is very durable without peeling or partial damage, and it is known that there are many differences in performance and appearance depending on the quality of construction, but there is a high possibility of occurrence of structural cracks and hair cracks. This relatively low and limited coloration and discoloration has not been able to escape from the low-cost flooring concept.
  • the inorganic liquid hardeners are convenient for construction and are used for general concrete and concrete coated in the East Sea. They have good effect on the initial strength improvement and excellent wear resistance and chemical resistance. Rather than forming, it acts to reinforce the floor surface and is not a fundamental countermeasure against structural cracks and microcracks. It is a transparent liquid, which causes problems such as exposing concrete colors or contaminated surfaces.
  • polymer cement mortar is the most actively developed inorganic flooring in recent years, the basic composition of cement, such as portland cement, back cement, cemented carbide alumina cement, such as silica sand, calcium carbonate, etc. It contains a proper amount of various additives such as a water reducing agent, a fluidizing agent, an accelerator, a retarder, and is uniformly mixed to form a powder.
  • the polymer cement mortar is coated with a polymer emulsion type and an epoxy primer once or twice, and then Cement mortar was usually applied to the plaster of a trowel or sprayer with a thickness of about 3 to 10 mm and cured for a certain period of time before the top coat was applied.
  • the concrete structure when the concrete structure is wet, in order to apply the primer and polymer cement mortar, the concrete structure must be completely dried to a water content of 8% or less, and when water is present on the surface, construction difficulties occur.
  • Patent Document 1 Registered Patent Publication No. 10-1086495 (2011.11.17)
  • Patent Document 2 Registered Patent Publication No. 10-0914048 (2009.08.19)
  • Patent Document 3 Registered Patent Publication No. 10-0881772 (2009.01.28)
  • Patent Document 4 Registered Patent Publication No. 10-0854987 (2008.08.22)
  • the present invention is a foreign matter removing step of removing the foreign matter on the base surface of the concrete structure;
  • the inorganic anti-neutralization, waterproof, anticorrosive, flooring coating composition has an inorganic powder 200 to 300 parts by weight with respect to 100 parts by weight of the aqueous phase, the aqueous phase is an acrylic aqueous solution having 15 to 50wt% solid content, the inorganic powder Silica powder 45-70 parts by weight, inorganic pigments 15-22 parts by weight, alumina cement 0.5-4 parts by weight, PC (Polycarboxylate) dispersant 0.31-0.5 part by weight, powder defoamer 0.2-0.4 It is to contain a weight part, 0.1-0.2 weight part of surface stabilizers, and 0.05-0.1 weight part of bentonite.
  • the inorganic anti-neutralization, waterproof, anticorrosive, and floor finish coating composition of the present invention further comprises 80 to 150 parts by weight of silica (No. 5 to 7 silica sand).
  • the present invention is 100 parts by weight of the aqueous phase consisting of an aqueous solution of MMA or MA-based acrylic, 100 parts by weight of environmentally friendly inorganic powder, 45 to 70 parts by weight of silica powder, 15 to 22 parts by weight of inorganic pigments, 0.5 to 4 alumina cement Consisting of 200 to 300 parts by weight of inorganic powder including parts by weight, 0.31 to 0.5 parts by weight of a PC (polycarboxylate) dispersant, 0.2 to 0.4 parts by weight of powder antifoaming agent, 0.1 to 0.2 parts by weight of surface stabilizer, and 0.05 to 0.1 parts by weight of bentonite. It can be installed on the ground surface of concrete structures and steel structures with moisture content of more than%, relative humidity and atmospheric humidity of more than 90%.
  • PC polycarboxylate
  • the present invention is not only a new construction of concrete structures but also various water structures (water purification, sedimentation basin, drainage, filter paper, seed needle, underground machine room of building, etc.) and food factory (kimchi production plant, meat processing) Factory, aquatic product processing plant, etc.), fish market, greengrocers market, etc. It is also applicable to repair and reinforcement of structures that are continuously using water or submerged in water. Even at 100% and atmospheric humidity, it can be applied directly to the base surface without additional primer application work, and it can transmit the gas pressure due to moisture and moisture on the concrete base through the breathability like Gore-Tex. Like it does not cause blisters, lifting, or falling.
  • the present invention is applied to concrete structures on local roads and highways whose durability is degraded due to the penetration of exhaust gas and carbon dioxide of cars, chlorides and water sprayed during winter snow removal operations, and waterproof, chemical (flame resistant), and neutralization prevention functions. Therefore, it is possible to prevent the damage and aging of the concrete structures of the highway, especially the median and barriers, the toll gate structure.
  • the present invention can be applied directly to the base surface of the concrete structure and steel structure, without additional primer coating work, as well as inorganic to the concrete structure by the hydration reaction of the moisture and the wet composition in the concrete structure to maintain the wet state
  • the coating film formed by the system coating composition is integrated.
  • the present invention is made of an inorganic powder of homogeneous concrete and is provided with air permeability through the gas pressure caused by moisture, and is caused by the lifting phenomenon and the weight impact pressure caused by the water pressure which is a drawback in organic flooring materials such as epoxy. Problems such as breakage do not occur.
  • the present invention is applied to dry and wet ground, and has strong adhesion to concrete, wood, metal, tile, epoxy, etc. and abrasion resistance against wheel friction, as well as excellent waterproofing, and has a concrete base and steel structures such as underground parking lots, factories, buildings, etc.
  • it is innovatively applied to prevent safety accidents due to slipping on the ship due to its corrosion resistance and anti-slip resistance, especially applied to the exterior of the ship.
  • the present invention can be applied not only after 24 hours of concrete pouring, but also takes about 24 to 48 hours for curing time, so construction and use are possible within a short time.
  • the present invention has excellent physical properties of compressive strength of 270 kgf / cm 2 to 350 kgf / cm 2 and adhesion strength of about 39.0 kg f / cm 2 or more, that is, almost similar to that of a concrete structure, thereby preventing cracking of the coating film.
  • the present invention has a mobility of about 8 inches with respect to about 200 g of the inorganic coating composition, and has excellent magnetic smoothness, thereby making it easy to form smooth surfaces even inexperienced plasterers. It is provided.
  • the coating film thickness is about 7 mm or more, there is no deformation up to a low temperature of -45 ° C., and it is not only resistant to hot water washing at 120 ° C. after 7 days of curing, but also indirectly at 300 ° C. or more after 28 days of curing. It also has heat resistance against heat.
  • the inorganic powder forms the pores to absorb and settle the water, thereby preventing slippage, absorbing frictional heat and noise, and significantly improving the noise problem generated in the room while protecting the concrete floor layer, thereby improving the surface strength and wear resistance of the floor layer. To improve.
  • the present invention can be easily mixed with inorganic pigments, so that the color can be freely realized by the combination of the five primary colors, thereby not only beautiful aesthetics of the bottom layer, but also long life and elution of harmful components even when moisture is in contact. Equipped with no eco-friendliness.
  • the present invention is applied to the base surface of the concrete structure to provide a waterproof, anticorrosive effect, as well as having a predetermined elasticity, and has a crack prevention effect.
  • the present invention can be cured at a low temperature of about 5 °C image, excellent in water resistance and adhesion, improved wear resistance and heat resistance, excellent impact resistance and flame resistance and chemical resistance, can be installed only by roller or brush work It can be applied to various base surfaces including wet base surface due to strong adhesiveness due to organic and inorganic coupling.
  • the present invention has the effect of improving the convenience of the operation during the coating operation is not discharged of toxic harmful gas.
  • the present invention is mixed with an acrylic emulsion and an inorganic powder and applied to a concrete structure has the effect of having excellent waterproof resistance as well as excellent chemical resistance, weather resistance, crack resistance, impact resistance and hydrophilicity and high tensile strength.
  • the present invention has the effect of mixing cement but greatly improving the tensile strength and elongation rate to have excellent performance not separated or separated from the road surface of the concrete structure.
  • the present invention is to further include a titanium oxide coated mica powder, to further improve the removal efficiency of volatile organic solvents (VOCs), formaldehyde harmful to the human body, release a large amount of anion and far infrared rays beneficial to the human body, construction site And not only improve the environment of the work site, it has the effect of minimizing pollution by imparting antifouling property to the flooring.
  • VOCs volatile organic solvents
  • the inorganic powder since the inorganic powder is used, shrinkage and expansion are performed together with the concrete, and by easily discharging the moisture of the concrete to the outside, the corrosion of the concrete can be prevented, so that the life of the building can be extended. .
  • FIG. 1 is an exemplary view showing a floor structure of a concrete structure according to the present invention
  • Figure 2 is a block diagram showing a construction method according to the present invention
  • the inorganic anti-neutralization, waterproofing, anticorrosive, and floor coating composition according to the present invention (hereinafter referred to as inorganic coating composition) are provided with 200 to 300 parts by weight of inorganic powder with respect to 100 parts by weight of an aqueous phase, and the aqueous phase is a solid content 15 Acrylic aqueous solution having ⁇ 35wt%, the inorganic powder is
  • the inorganic coating composition of this invention contains 80-150 weight part of silicas (No. 5-7 silica sand) further.
  • the aqueous phase is a mixture of MMA-based or MA-based acrylic resin copolymers mixed and stirred, and the aqueous phase has a pH of 8-9.
  • Such an aqueous phase has excellent water resistance, alkali resistance, and inorganic powder mixing property, and has elasticity and elasticity so that it has crack followability to fine cracks of the mother body. That is, the aqueous phase is not only coated on the surface of the inorganic powder when mixed with the inorganic powder, it improves the adhesion to the concrete structure.
  • the aqueous solution phase may be a mixture of a surfactant or a dispersant is stirred and mixed, the surfactant or dispersant is mixed and stirred in the range of about 0.1 to 2 parts by weight based on 100 parts by weight of the aqueous phase, the surfactant or dispersant is known Use it.
  • the acrylic aqueous solution does not affect the adhesion improvement when too little is added, and when it is added too much, the permeability of the penetrating component is lowered due to poor air permeability of the bottom coating layer, so it is added within an appropriate range. .
  • the inorganic powder is composed of a strong alkaline powder of pH 12 ⁇ 13, and hydrates with water contained in the base surface of the concrete structure and water in the aqueous phase to form a coating film.
  • the binder powder is composed of a single cement or a blast furnace slag powder alone or mixed, the mixed use of the back cement and blast furnace slag powder is a mixture of the back cement and blast furnace slag powder in a weight ratio of 1: 0.5 to 2.
  • the back cement has excellent color embodying ability and is mixed with water in an aqueous acrylic solution and water contained in a concrete structure to cause a hydration reaction and harden to express a predetermined strength.
  • the back cement is not particularly limited in the degree of powder, but when the powder degree is 4,000 to 9,000 cm 2 / g, the surface area is wide to promote the water and the hydration reaction, thereby improving the water tightness of the stress and high strength.
  • the surface area of the cement when the powder is less than 4,000 cm 2 / g, the surface area of the cement is small, the hydration reaction is reduced, and this may reduce the reinforcing effect due to the limitation of stress and strength, and the surface area is wide when the powder is more than 9,000 cm 2 / g. Water and hydration are promoted to improve stress and strength, but the air permeability is reduced and the economic effect is weak.
  • the blast furnace slag (fine powder) is to induce a latent hydraulic reaction to increase the strength, the powder also uses more than 4,000 cm 2 / g.
  • a dense impermeable gel thin film is formed on the surface of the blast furnace slag particles, preventing water from invading into the particles and preventing further reactions (potential hydraulic reaction), alumina cement and back cement Ca (OH) 2 produced by the hydration reaction of Alkine serves as an alkali stimulator to break the impermeable gel thin film of blast furnace slag powder, thereby promoting the latent hydraulic reaction of blast furnace slag powder to enhance the overall strength.
  • the mixing ratio of the back cement and the blast furnace slag powder is for crack-free curing and strength enhancement due to the hydration reaction of cement particles and the latent hydraulic properties of the blast furnace slag fine powder during application curing.
  • the silica powder (silica saru) has a characteristic of excellent color realization, and reacts with the lime component in the inorganic powder to promote hardening of the coating film and at the same time react with the glass lime component in the floor surface of the concrete structure.
  • the silica powder uses about 325 to 500 mesh (0.028 to 0.043 mm), preferably about 400 mesh (0.035 mm) passage.
  • the inorganic pigment is not particularly limited in the present invention, and includes all inorganic pigments known in the art. Such inorganic pigments are intended to give an appropriate coloring effect when forming a coating film on the bottom surface of a concrete structure, and lead chromium salt, titanium dioxide (TiO 2) or iron oxide green (Iron Oxide Green) and iron oxide red (IronOxideRed), Titanium, iron, cobalt, chromium, antimony, zinc, copper, molybdenum, manganese, and other metals and their oxides can be selected and mixed to achieve color.
  • the inorganic pigment is less than 15 parts by weight can not implement a clear coating color, if it exceeds 22 parts by weight, not only the coating is not easy, the curing of the coating is long, cracks are easily generated, the surface roughness of the coating film Becomes rough and a phenomenon in which physical properties fall.
  • the alumina cement (AC) is a special cement based on calcium aluminate, and provides roughness, chemical resistance, and fire resistance.
  • the alumina cement is preferably used to the aluminum oxide of 30 to 40wt% in order to perform the role to give the initial expansion and reduce dry shrinkage.
  • the alumina cement is less than 0.5 parts by weight based on 100 parts by weight of cement, there is a problem in that the pot speed becomes slow and the dry shrinkage rate is high, which causes a lot of restrictions on the use, and when it exceeds 4 parts by weight, the content of other components is relatively high. Since it decreases and overall strength falls, it is preferable to add in the appropriate range.
  • the polycarboxylic acid (PC) -based dispersant plays a role of increasing the compatibility by improving the dispersibility and storage stability of the mixture to be added, when less than 0.31 parts by weight, the dispersibility of the additive is lowered, the storage stability is lowered If the amount of the dispersant is more than 0.5 parts by weight, separation of the material may occur due to the high dispersibility of the additive.
  • the antifoaming agent is to remove bubbles generated during the mixing process of the aqueous phase and the inorganic powder, and the powder antifoaming agent may be prepared and used directly, or a commercially known powder antifoaming agent may be purchased and used.
  • the antifoaming agent may be a silicone antifoaming agent.
  • the surface stabilizer is to improve the agglomeration prevention and dispersibility of the aqueous acrylic solution, it uses an aerosol (microcell) type surface stabilizer. Since the surface stabilizer uses a known surface stabilizer, detailed description thereof will be omitted.
  • the bentonite absorbs water or moisture, exhibits increased adhesion and swelling properties, and serves to adjust viscosity.
  • the inorganic powder of the present invention further comprises 0.2 to 5 parts by weight of titanium oxide coated mica hair powder based on 100 parts by weight of cement.
  • the titanium oxide coated mica powder releases a large amount of anions and far infrared rays, which are beneficial to the human body, to adsorb and remove harmful substances such as volatile organic solvents (VOCs), formaldehyde, and heavy metals, which are harmful to the human body.
  • VOCs volatile organic solvents
  • the biotite powder is added to the aqueous phase consisting of an aqueous acrylic solution without a coating of titanium oxide, when mixed, the biotite powder is not uniformly dispersed in the aqueous solution due to the absorption of the biotite powder itself, harmful components Since the adsorption capacity is lowered, one coated with titanium oxide is used.
  • the titanium oxide-coated cicadas powder is heated for 5 to 10 minutes at 70 to 80 ° C., and 15 to 20 parts by weight of titanium oxide powder is added to 100 parts of cicadas to maintain 70 to 80 ° C.
  • the mixture is heated and kneaded for 15 to 20 minutes, and then cured at room temperature, that is, 18 to 25 ° C. for 50 to 60 hours, so that the titanium oxide is firmly bonded to the surface of the mica powder.
  • the biotite powder thus formed emits more than 90% of far-infrared rays of 5-20 microwaves at room temperature, and has excellent adsorptive power to emit strong anions (4,000-6,500). With functions.
  • the biotite powder should be pulverized to have a particle size of 1,000 to 2,000 mesh, so as to retain the characteristics of the biotite even after the coating of titanium oxide.
  • the biotite powder reacts with the lime component in the inorganic powder to produce a reaction product, and the reaction product forms an extremely fine gel on the surface of the particle, and the gel is gradually cured as a hydrated mineral to produce a tension (reaction reaction). Since the force of the products to connect the particles to each other) is generated, not only the crack of the coating film is prevented by this tension, but also increases the surface strength of the coating film and has a surface stability function.
  • the present invention may further add known additives known in the art in addition to the above-described composition, the selection and content of such additives may be appropriately selected and modified by those skilled in the art. It can be used within the range that the physical properties of the inorganic coating composition according to the invention are not modified.
  • the silica is added to stably form the coating film of 1mm ⁇ 8mm, using No. 5-7 silica sand, and reacts with the lime component in the inorganic powder to promote the curing of the coating film and at the same time It reacts with the glass lime component in the floor surface to form needle crystals of fine silicate silica in the fine pores of the floor surface, thereby enhancing the adhesion between the concrete structure and the coating film.
  • the inorganic coating composition of the present invention as described above, by using the aqueous phase containing an acrylic copolymer mixed with an inorganic powder in a wet state of moisture content of 80% or more, and the merging effect on the floor ground surface of the concrete structure and 2 There is an advantage of initial curing within ⁇ 4 hours, and it does not require additional primer work because it contains an acrylic resin solution with adhesion to the bottom surface and bubble prevention effect.
  • the inorganic paint composition as described above is mixed with an aqueous phase, when applied to a concrete structure having a wet state of water content of 80% to 100%, a strong alkaline inorganic powder and an aqueous phase of pH 8 is mixed.
  • a strong alkaline inorganic powder and an aqueous phase of pH 8 is mixed.
  • the curing is performed to gradually form each molecule through physical reaction (moisture evaporation) to form a coating film.
  • the inorganic powder of the present invention is to be surface-coated by mixing with an aqueous solution consisting of an aqueous acrylic solution, thereby improving the adhesive force of the inorganic coating composition itself, and at the same time to produce a hydrate by the hydration reaction to harden the concrete structure The heterogeneous phenomenon of the over is prevented.
  • the inorganic powder of the present invention is neutralized to a minimum pH of 7 to 8 with a passage of time of about 28 days or more due to moisture and air contact, the present invention does not cause whitening.
  • the present invention is to contain silica, and the silica reacts with calcium hydroxide in the surface and the interior of the concrete structure to produce calcium silicate of acicular crystals, the calcium silicate produced by the needle penetrates the surface of the concrete structure to be three-dimensional To form a bond.
  • the aqueous acrylic solution penetrates between the acicular structure and exhibits stronger adhesive force.
  • the composition ratio of the present invention is a wetted concrete structure with a water content of 80 to 100% and the formation of hydrates by mixing and reacting inorganic powders and aqueous phases, dissolving soluble components by residual moisture, and carbonate through continuous hydration of residual moisture.
  • the hydration reaction of the inorganic powder is the main reaction, so that the strength can be enhanced and the curing time can be shortened.
  • FIG. 1 is an exemplary view showing a concrete structure base layer structure according to the present invention
  • Figure 2 is a block example showing a construction method according to the present invention, the present invention is to remove foreign substances on the concrete structure base surface Removing step
  • a wet composition step of spraying water on the floor base surface 10 of the concrete structure from which foreign substances have been removed 1 to 2 hours before construction to form a wet state 20 It includes; coating film forming step of forming and coating the inorganic coating material composition on the bottom surface 10 of the concrete structure having a wet state to form a coating film (30).
  • the present invention further includes a finishing step of forming a surface coating layer 40 by applying a one-component water-soluble urethane coating agent (dip seal) on the coating film.
  • the foreign material removal step is to remove oil, foreign matter, redundancy cleanly with detergent or equipment.
  • the wet forming step is to create a wet state by spraying water to have a moisture content of 80% or more with respect to the base surface of the concrete structure, to spray water to moisturize the base surface of the concrete structure about 1 to 2 hours before construction
  • the moisture content in the concrete structure is about 80% or more, that is to have 80% to 100%.
  • the water accumulated on the base surface of the concrete structure is preferably removed by a cloth or a straw.
  • the moisture content in the concrete structure is less than 80%, air present in the pores and pinholes in the concrete structure not only decreases the film formation due to bubbles and blisters generated on the surface of the inorganic paint composition, but also affects the surface of the coating film. Since dichroism occurs, the water content is 80% or more, preferably 90% or more.
  • the coating film forming step is to mix the aqueous phase and the inorganic powder, and to penetrate it to form the inorganic paint composition, and then to the inorganic paint composition on the floor base surface of the concrete structure to maintain the moisture content of 80 ⁇ 100% Apply with a special brush, roller or special spray.
  • the coating film forming step may further include, in the inorganic coating composition, further blending silica, and applying a dedicated brush, roller or spray.
  • blended can form the coating film of 1-10 mm or more of coating film thickness minimums.
  • the finishing step is a step of applying a one-component water-soluble urethane coating (dipsil), the water-soluble urethane coating is used by water when the water is used before the inorganic coating is cured in a state where the construction time is short in a lot of water It is coated with perishability to prevent damage to the coating. In this case, after about 14 days, the one-component water-soluble urethane disappears and the slip resistance of the surface of the coating film is maintained.
  • a one-component water-soluble urethane coating dipsil
  • the water-soluble urethane coating agent is coated in order to prevent the occurrence of contamination due to the sliding resistance peculiar to the inorganic flooring material in the underground parking lot and logistics warehouse that does not use water.
  • the present invention is preferably applied in a wet state by spraying water, it is possible to apply even if a separate primer is applied. That is, in the case of concrete base surface, if the moisture content is not maintained more than 80% on the base, bubbles are generated on the surface of the coated product due to the pressure of the air layer before the curing immediately after construction. After the primer is completed after the primary work using, the inorganic coating composition according to the present invention can be applied.
  • the present invention is a foreign matter removal step of removing the foreign matter on the base surface of the concrete structure;
  • the coating film forming step of forming and coating the inorganic coating material composition on the bottom surface 10 of the concrete structure to form a coating film (30).
  • the primer is a known primer (trade name BC-48) or use an aqueous acrylic solution phase as a primer, preferably an acrylic aqueous solution primer.
  • the curing of the primer is completed (about 10 hours on the basis of about 25 ° C.), and the inorganic coating composition according to the present invention is coated and cured.
  • inorganic powder 250 parts by weight of inorganic powder was mixed with 100 parts by weight of an aqueous acrylic solution (20 wt% of a solid content, MMA-based acrylic copolymer) to form an inorganic coating composition, and the inorganic coating composition was formed on the base surface of the concrete structure (water content: 100%). After coating once at a thickness of 1 mm or less with a size of 5 ⁇ 5 m, it was confirmed that the coating film form and cracks after 24 hours, and the results are shown in [Table 1].
  • the inorganic powder is 100 parts by weight of binder powder (back cement: blast furnace slag fine powder 1: 1 weight ratio), 60 parts by weight of silica powder (400 mesh), 15 parts by weight of inorganic pigment (zinc oxide), 2 parts by weight of alumina cement, 0.5 parts by weight of a PC (Polycarboxylate) -based dispersant, 0.3 parts by weight of a powder antifoaming agent (trade name: Deforma), 0.2 parts by weight of a surface stabilizer (trade name: Oni,), 0.1 parts by weight of bentonite, the curing temperature is 18 ⁇ 25 °C, and the atmospheric humidity was about 80%.
  • binder powder back cement: blast furnace slag fine powder 1: 1 weight ratio
  • silica powder 400 mesh
  • inorganic pigment zinc oxide
  • 2 parts by weight of alumina cement 0.5 parts by weight of a PC (Polycarboxylate) -based dispersant
  • 0.3 parts by weight of a powder antifoaming agent
  • an aqueous acrylic solution (20 wt% solids, MMA-based acrylic copolymer
  • 250 parts by weight of an inorganic powder and 80 parts by weight of silica (7) were mixed to form an inorganic coating composition.
  • the inorganic paint composition was applied to the base surface (water content 100%) of the concrete structure with a thickness of 5 ⁇ 5m with a thickness of 1 to 3 mm, and after 24 hours, it was confirmed that the coating and cracks were obtained. ].
  • the inorganic powder is 100 parts by weight of the binder powder (back cement: blast furnace slag fine powder 1: 1 weight ratio), 60 parts by weight of silica powder (400 mesh), 15 parts by weight of inorganic pigment (zinc oxide), 2 parts by weight of alumina cement, PC (Polycarboxylate) -based dispersant 0.5 parts by weight, powder defoamer (trade name: Deforma) 0.3 parts by weight, surface stabilizer (trade name: Onishel) 0.2 parts by weight, bentonite 0.1 parts by weight of the curing conditions, the atmospheric temperature is 18 ⁇ 25 °C And an atmospheric humidity of about 80%.
  • the binder powder back cement: blast furnace slag fine powder 1: 1 weight ratio
  • silica powder 400 mesh
  • inorganic pigment zinc oxide
  • 2 parts by weight of alumina cement alumina cement
  • PC Polycarboxylate
  • dispersant 0.5 parts by weight
  • powder defoamer trade name: Deforma
  • surface stabilizer trade name
  • an aqueous acrylic solution (20 wt% solids, MMA-based acrylic copolymer
  • 250 parts by weight of an inorganic powder and 120 parts by weight of silica (No. 6) were mixed to form an inorganic coating composition.
  • the inorganic coating composition was applied to the base surface (100% water content) of the concrete structure with a thickness of 5-5 m in a size of 3 to 5 mm, and after 24 hours, it was confirmed that the coating and cracks were obtained. ].
  • the inorganic powder is 100 parts by weight of the binder powder (back cement: blast furnace slag fine powder 1: 1 weight ratio), 60 parts by weight of silica powder (400 mesh), 15 parts by weight of inorganic pigment (zinc oxide), 2 parts by weight of alumina cement, PC (Polycarboxylate) -based dispersant 0.5 parts by weight, powder defoamer (trade name: Deforma) 0.3 parts by weight, surface stabilizer (trade name: Onishel) 0.2 parts by weight, bentonite 0.1 parts by weight of the curing conditions, the atmospheric temperature is 18 ⁇ 25 °C And an atmospheric humidity of about 80%.
  • the binder powder back cement: blast furnace slag fine powder 1: 1 weight ratio
  • silica powder 400 mesh
  • inorganic pigment zinc oxide
  • 2 parts by weight of alumina cement alumina cement
  • PC Polycarboxylate
  • dispersant 0.5 parts by weight
  • powder defoamer trade name: Deforma
  • surface stabilizer trade name
  • an aqueous acrylic solution (20 wt% of a solid content, MMA-based acrylic copolymer
  • 250 parts by weight of an inorganic powder and 150 parts by weight of silica (No. 6) were mixed to form an inorganic coating composition.
  • the inorganic paint composition was applied to the base surface (90% water content) of the concrete structure with a thickness of 5-7 mm with a size of 5 ⁇ 5 m, and after 24 hours, the coating film shape and cracking were confirmed. As a result, [Table 1 ].
  • the inorganic powder is 100 parts by weight of the binder powder (back cement: blast furnace slag fine powder 1: 1 weight ratio), 60 parts by weight of silica powder (400 mesh), 15 parts by weight of inorganic pigment (zinc oxide), 2 parts by weight of alumina cement, PC (Polycarboxylate) -based dispersant 0.5 parts by weight, powder defoamer (trade name: Deforma) 0.3 parts by weight, surface stabilizer (trade name: Onishel) 0.2 parts by weight, bentonite 0.1 parts by weight of the curing conditions, the atmospheric temperature is 18 ⁇ 25 °C And an atmospheric humidity of about 80%.
  • the binder powder back cement: blast furnace slag fine powder 1: 1 weight ratio
  • silica powder 400 mesh
  • inorganic pigment zinc oxide
  • 2 parts by weight of alumina cement alumina cement
  • PC Polycarboxylate
  • dispersant 0.5 parts by weight
  • powder defoamer trade name: Deforma
  • surface stabilizer trade name
  • the present invention can be seen that the coating film is formed, as well as the crack does not occur even at 90% moisture content of the concrete structure.
  • the curing time is rapidly started to 4-12 hours, and after about 20 hours after construction, its use is simple.
  • test pieces 1,2,3 100 parts by weight of an aqueous acrylic solution (20 wt% of a solid content, MMA-based acrylic copolymer), 200 parts by weight, 250 parts by weight, and 300 parts by weight of inorganic powder were mixed to form an inorganic coating composition (test pieces 1,2,3).
  • the compressive strength (KS F 2405) and adhesion strength (KS F 4918) for the specimens (cube mold 50 ⁇ 50 ⁇ 50mm) were measured by the respective inorganic paint compositions, and the results are shown in [Table 2]. It was.
  • the inorganic powder is 100 parts by weight of binder powder (back cement: blast furnace slag fine powder 1: 1 weight ratio), 60 parts by weight of silica powder (400 mesh), 15 parts by weight of inorganic pigment (zinc oxide), 2 parts by weight of alumina cement, 0.5 parts by weight of a PC (Polycarboxylate) -based dispersant, 0.3 part by weight of a powder antifoaming agent (trade name: Deforma), 0.2 part by weight of a surface stabilizer (trade name: Onishel), and 0.1 part by weight of bentonite.
  • binder powder back cement: blast furnace slag fine powder 1: 1 weight ratio
  • silica powder 400 mesh
  • inorganic pigment zinc oxide
  • alumina cement 0.5 parts by weight of a PC (Polycarboxylate) -based dispersant
  • a powder antifoaming agent trade name: Deforma
  • a surface stabilizer trade name: Onishel
  • bentonite 0.1 part by weight
  • an aqueous acrylic solution (20 wt% of solid content, MMA-based acrylic copolymer
  • 250 parts by weight of inorganic powder and 120 parts by weight of silica (6) were mixed to form an inorganic coating composition, and the inorganic coating composition was concrete.
  • the color uniformity of the coating film was tested after 24 hours, and the results are shown in [Table 3].
  • the curing conditions were provided with an atmospheric temperature of 18-25 °C, about 80% of the atmospheric humidity.
  • the inorganic powder is a binder powder (back cement: blast furnace slag fine powder 1: 1 weight ratio) 100 parts by weight, 60 parts by weight of silica powder (400 mesh), 2 parts by weight of alumina cement, 0.5 parts by weight of a PC (polycarboxylate) -based dispersant, 0.3 parts by weight of powder antifoaming agent (trade name: Deforma), 0.2 parts by weight of surface stabilizer (trade name: Onishel), 0.1 parts by weight of bentonite, 10 parts by weight of inorganic pigment (zinc oxide) (No. 1), 15 parts by weight ( No. 2), 22 parts by weight (No. 3) and 35 parts by weight (No. 4) were combined, respectively, and color uniformity was classified into 1 to 5 defects, 6 to 8: normal, and 9 to 10: excellent. .
  • back cement blast furnace slag fine powder 1: 1 weight ratio
  • the present invention not only has excellent color uniformity, but also shows that cracking does not occur.
  • Contrast group 1 is epoxy
  • contrast group 2 is eucrete (urethane resin and silica sand).
  • the inorganic powder is 100 parts by weight of the binder powder (back cement: blast furnace slag fine powder 1: 1 weight ratio), 60 parts by weight of silica powder (400 mesh), 15 parts by weight of inorganic pigment (zinc oxide), 2 parts by weight of alumina cement, PC 0.5 parts by weight of a (Polycarboxylate) -based dispersant, 0.3 part by weight of a powder antifoaming agent (trade name: Deforma), 0.2 part by weight of a surface stabilizer (trade name: Onishel), and 0.1 part by weight of bentonite.
  • back cement blast furnace slag fine powder 1: 1 weight ratio
  • silica powder 400 mesh
  • inorganic pigment zinc oxide
  • 2 parts by weight of alumina cement 0.5 parts by weight of a (Polycarboxylate) -based dispersant
  • 0.3 part by weight of a powder antifoaming agent trade name: Deforma
  • 0.2 part by weight of a surface stabilizer trade name: Onish

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PCT/KR2014/005236 2013-09-09 2014-06-16 콘크리트 함수율 100% 습윤상태에서 프라이머 없이 시공이 가능한 무기질계 중성화방지, 방수, 방식, 바닥마감재 도료 조성물과 이를 이용한 중성화방지, 방수, 방식, 바닥재 시공방법 WO2015034164A1 (ko)

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