WO2006129727A1 - Materiau protecteur/renforcant pour surface de revetement en ciment et materiau de revetement pulverisable en ciment sous forme d'aerosol - Google Patents

Materiau protecteur/renforcant pour surface de revetement en ciment et materiau de revetement pulverisable en ciment sous forme d'aerosol Download PDF

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Publication number
WO2006129727A1
WO2006129727A1 PCT/JP2006/310912 JP2006310912W WO2006129727A1 WO 2006129727 A1 WO2006129727 A1 WO 2006129727A1 JP 2006310912 W JP2006310912 W JP 2006310912W WO 2006129727 A1 WO2006129727 A1 WO 2006129727A1
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WIPO (PCT)
Prior art keywords
cement
coating material
spray coating
coated surface
surface protection
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2006/310912
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English (en)
Japanese (ja)
Inventor
Takeshi Shirakawa
Fumio Nakayama
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IDM CO Ltd
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IDM CO Ltd
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Publication date
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Publication of WO2006129727A1 publication Critical patent/WO2006129727A1/fr
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • C09D1/06—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement
    • C09D1/08—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement with organic additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/58—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with separate inlets for contents and propellant feeding into a duct upstream of the dispensing valve
    • 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
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • 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
    • 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
    • C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
    • C04B41/61—Coating or impregnation
    • C04B41/70—Coating or impregnation for obtaining at least two superposed coatings having different compositions
    • C04B41/71—Coating or impregnation for obtaining at least two superposed coatings having different compositions at least one coating being an organic material

Definitions

  • the present invention for example, applies a thin coating material mainly composed of cement to materials widely used in civil engineering structures and building structures such as concrete, mortar, and slate.
  • the present invention relates to a cement coated surface protection reinforcing material, a cement spray coating material, an aerosol product, and a construction method using them.
  • a cement coating material mainly composed of cement has been applied to a base such as concrete, mortar, or slate with a brush, a roller, or the like for the purpose of repair.
  • a base such as concrete, mortar, or slate
  • a brush, a roller, or the like for the purpose of repair.
  • the dry out phenomenon occurs at the interface between the base surface and the coating material due to various factors such as non-uniformity of the base, weather and temperature during construction, and the presence of direct sunlight.
  • the applied coating material lacks strength.
  • the present invention has been made in view of the above points, and is easy to use, convenient to carry on the construction site, and has a stable effect with a small loss of material and provides a stable effect. Reinforcing materials, cement spray coating materials, their aerosol products, and applications using them Provides a method.
  • the gist is a cement-coated surface protection reinforcing material containing water and a thickener.
  • the cement-coated surface protection reinforcing material of the present invention contains a thickener when applied to an object (base) such as concrete, mortar, slate, etc., so that it does not sag and the base absorbs liquid. Even if it is easy to maintain, a film of water (liquid) is maintained for a certain period of time without being suddenly sucked into the substrate.
  • base such as concrete, mortar, slate, etc.
  • a coating material for example, a cement coating material containing cement as a main component, cement paste, cement paste, or cement-based aerosol spraying
  • Applying a thin coating material with a coating thickness of about 2 mm or less can prevent the cement contained in the coating material from drying out.
  • the strength of the film itself is improved. That is, the cement coated surface protection reinforcing material of the present invention has a dry-out of a coating material such as cement as the material itself.
  • the method of applying the cement-coated surface protection reinforcing material of the present invention can also prevent dry-out of the cement. And the strength of the film itself formed by the coating material is improved.
  • a uniform water film can be formed at any location on the ground, so that the coating material may be applied to a non-uniform object such as a concrete ground, or Even when the application site is outdoors and the conditions such as the influence of the weather and the orientation of the substrate are not constant, the adhesion between the substrate and the coating material and the strength of the coating material itself can be improved evenly over the entire substrate. You can. That is, according to the present invention, it is possible to solve a problem caused by uneven conditions at the construction site of construction and civil engineering. The above-described effects of the present invention are particularly effective for repairing concrete structures, which have been increasing in recent years.
  • the thickener is a water-soluble polymer thickener, synthetic polymer thickener, polysaccharide thickener 2.
  • the cement-coated surface protection reinforcing material of the present invention is one or more selected from a water-soluble polymer thickener, a synthetic polymer thickener, a polysaccharide thickener, and an inorganic thickener.
  • a water-soluble polymer thickener for example, sufficient strength can be obtained even if the cement coating material applied after applying the cement coating surface protection reinforcing material or before applying it is thin. I can do it.
  • Examples of the water-soluble polymer thickener include methyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, polyethylene oxide and the like.
  • Examples of the synthetic polymer thickener include polyacrylic acid, acrylic polymer polyurethane, and polyether.
  • Examples of polysaccharide thickeners include xanthan gum, uelan gum, guar gum, and derivatives thereof.
  • Examples of inorganic thickeners include aluminum magnesium silicate, bennite, and synthetic hectorite.
  • All of the above thickeners have a structurally high polymer structure, and when dissolved in water, the thickener is thickened by containing water in the polymer structure.
  • a cement-coated surface protection reinforcing material containing these thickeners is applied by spraying, water is taken into the polymer structure to prevent water dissipation, sudden suction into the base, and even the base. It is effective to make a film of a certain amount of water on the surface.
  • the cement-coated surface protection reinforcing material of the present invention has an effect of maintaining a constant water film by preventing the dissipation of water and rapid suction into the ground surface on the surface of the ground surface by having a viscosity of 5 cps or more. Is even higher.
  • the cement-coated surface protection reinforcing material of the present invention has a viscosity of 5000 cps or less, so that, for example, when spraying the cement-coated surface protection reinforcing material, the rod-shaped, mousse-shaped, or spray-free It can be atomized uniformly without being possible.
  • the viscosity can be controlled by the addition amount of the thickener and the molecular weight of the thickener. If the thickener has a large molecular weight, If the addition amount of the thickener is reduced and the molecular weight of the thickener is small, by adding more, the above viscosity range and
  • the viscosity in the present invention is measured using a BL-type tachometer under conditions of a temperature of 20 ° C, a rotor No. 60, and a rotational speed of 6 Orpm.
  • the cement-coated surface according to any one of claims 1 to 3, wherein the emulsion contains an emulsion such that the active ingredient is in a ratio of 2 to 25 wt% with respect to the total amount of the cement-coated surface protection reinforcing material.
  • the gist is protection reinforcement.
  • the cement-coated surface protection reinforcing material of the product of the present invention contains an emulsion.
  • the cement coating material applied after or before applying the cement-coated surface protection reinforcing material is a thin coating. Can give enough strength.
  • the emulsion in the present invention is not particularly limited, and examples thereof include acrylic, ethylene vinyl acetate, and styrene butadiene.
  • acrylic emulsions have good stability when aerosolized and are not too high in viscosity, so that they can be aerosolized and formed into a uniform atomized state when sprayed.
  • the cement coated surface protection reinforcing material film becomes transparent, and it is preferable not to form a cloudy film like when other emulsions are dried.
  • the mixing ratio of the emulsion is in the range of 2 to 25 wt% of the total amount of the cement-coated surface protective reinforcing material in terms of the effective component equivalent amount of the emulsion.
  • the content is 2 wt% or more, the above-described effect due to the incorporation of emulsion is further improved.
  • the cement coated surface protection reinforcing material of the present invention is used for the purpose of strengthening the surface protection after applying a cement-based thin coating material, cement paste, cement paste, or cement-based aerosol-type spray coating material, The surface of the coating material with high effect can be strengthened.
  • the aerosol can be stably formed.
  • spraying it is possible to perform a uniform spray that is made into a fine force that does not come out in the form of a stick or become mousse.
  • the cement-coated surface protection reinforcing material of the present invention has an emulsion particle size of 0.1 ⁇ m or less (more preferably microemulsion of 0.05 / zm or less). Transparency when converted into
  • microemulsion Since the transparency of the cement-coated surface protection reinforcing material depends on the proportion of the active ingredient, microemulsion is not necessarily an essential requirement for achieving transparency, but stability is good. Microemulsion is also preferable from the viewpoint that a wide range of mixing amounts can be taken.
  • cement-coated surface protection reinforcing material of the present invention is used as an aerosol product, it is convenient to carry at the site where it is used (many of which are construction and civil engineering sites). Can be used on site. Also, there is no need to clean equipment.
  • cement-based coating materials in recent years is dispersed in various places such as repairing concrete cracks, repairing partial color unevenness, concealing repair marks after filling concrete defects, repairing, and renovation.
  • Small area repair work There are many repair applications, and it is less likely to be applied to a large area at once. In such a case, the cement coated surface protection reinforcing material of the present invention used as an aerosol product is efficient and useless in use.
  • An aerosol product for enhancing the protection of the cement coated surface characterized by having a propellant gas.
  • the aerosol product of the present invention is convenient to carry at the site of use (many of which are construction and civil engineering sites) and can be used at the next site as it is after use. In addition, there is no need to clean equipment.
  • cement-based coating materials includes repair of concrete cracks and partial color unevenness.
  • the aerosol product of the present invention is efficient and useless in use.
  • the injection gas in the present invention is not particularly limited as long as the cement-coated surface protection reinforcing material can be stably discharged.
  • the cement-coated surface protection reinforcing material for example, DME, liquid nitrogen, liquefied carbon dioxide, LPG, chlorofluorocarbon, and a mixture thereof Is mentioned.
  • the propellant gas is at least one selected from DME, liquid nitrogen, liquefied carbon dioxide gas, LPG, and Freonka.
  • the cement coated surface protection reinforcing material can be discharged stably.
  • the cement-coated surface protection reinforcing material according to any one of claims 1 to 6 is first applied to a portion of the object (base) to which the cement-based coating material is applied later. Then, a cementitious coating material can be applied. Thereafter, a cement coated surface protection reinforcing material may be further coated on the cement-based coating material.
  • a cement-based coating material may be first applied to an object (base), and then the cement-coated surface protection reinforcing material according to any one of claims 1 to 6 may be applied thereon.
  • cement-based coating material cement-based thin coating material, cement paste, cement paste, cement-based aerosol-type spraying material, etc.
  • cement-based thin coating material cement paste, cement paste, cement-based aerosol-type spraying material, etc.
  • the main point is a cement spray coating material that is used as the contents of an aerosol product that includes A) a fast-hardening cement and B) an organic polymer of powder, and sprays the powder.
  • the cement spray coating material of the present invention can be used, for example, as follows. First, create a water film by spraying water on the surface of a cement-based substrate such as concrete, mortar, or slate, and spray the cement spray coating material of the present invention there. To do.
  • a cement-based substrate such as concrete, mortar, or slate
  • the cement spray coating material of the present invention is cured by causing a hydration reaction of the cement in a very short time and exhibits strength as a coating film.
  • the cement spray coating material of the present invention is a coating film having sufficient strength even in a very thin cement layer without drying out due to the interaction between the fast-curing cement and the powdered organic polymer. Can be made.
  • the cement spray coating material of the present invention due to mutual curing of the fast-curing cement and the powdered organic polymer, the cement comes into contact with water and reacts to cure and develop strength through a so-called hydration reaction.
  • the cement spray coating material of the present invention includes a powdered organic polymer, and thus has high adhesion to the substrate.
  • the color, dirt, and dirt of materials generally used widely in civil and civil engineering such as concrete, mortar, and slate, and inside and outside of building structures are used. Can be repaired easily and economically. That is,
  • the cement spray coating material of the present invention contains a fast-curing cement, so that curing progresses in a short time after spraying, and also contains a powdered organic polymer, so that moisture necessary for the hydration reaction of the fast-curing cement is included. Can be secured It has only water retention and improves the strength and adhesion of the coating after curing.
  • Examples of the powdered organic polymer in the present invention include, for example, ethylene vinyl acetate powder polymer, trade names DM-200, DM1645P, D5100P, LE-201C 5, manufactured by Clariant Polymer, and trade names 1080, manufactured by NSC Japan. 50E100, HM110, methylcellulose, hydroxyethyl cellulose, carboxymethylcellulose and the like.
  • the particle size of the powdered organic polymer is preferably in the range of 20 to 300 ⁇ m.
  • the blending ratio (weight ratio) of A) fast-curing cement and B) organic polymer of powder is preferably in the range of 1: 0.05 to 0.30.
  • the dosage form of the cement spray coating material of the present invention is, for example, substantially free of water! /, In a powder form.
  • the cement spray coating material according to claim 11, wherein the fast-setting cement is any one of alumina cement, jet cement, and super-hard setting cement, or a mixture of two or more kinds.
  • the cement spray coating material of the present invention contains the above-mentioned cement as a fast-curing cement, it is particularly excellent in fast-curing.
  • the fast-curing cement further contains Portland cement, it is particularly excellent in fast-curing!
  • the cement spray coating material of the present invention can produce various colors by, for example, mixing pigments. In that case, it is preferable to contain white alumina cement and Portland cement.
  • the gist of the cement spray coating material according to any one of claims 11 to 13, characterized in that it contains gypsum in a proportion of 3 to 30 wt% with respect to the fast-curing cement component.
  • the cement spray coating material of the present invention is a ratio of 3 to 30 wt% with respect to the fast-curing cement component
  • gypsum By including gypsum, it is cured by simply spraying it with an aerosol method and making it collide with a water film on the object, giving the desired strength. In other words, a faster instantaneous curing speed can be achieved.
  • the blending amount of gypsum is 3 wt% or more with respect to the fast-curing cement component, so that it is further excellent in fast-curing property, and if it is 30 wt% or less, the durability of the coating film after curing, Water resistance is even better.
  • Examples of the gypsum include natural anhydrous gypsum and natural dihydrate gypsum.
  • Titanium oxide and Z or inorganic powder pigment is added in an amount of 0.1 to 2 with respect to the sum of the components A) and B).
  • the gist of the present invention is the cement spray coating material according to any one of claims 11 to 14, which is contained at a ratio of / c ⁇ .
  • the cement spray coating material of the present invention contains titanium oxide, inorganic powder pigments of each color, or both in a proportion of 0.1 to 20 wt% of the total amount of A) and B) components. It is possible to produce various colors, and the value of the product is high.
  • the amount of titanium oxide and inorganic powder pigment is 0.1 lwt% or more, the coloring power is further increased, and by 20 wt% or less, the coating strength after curing is increased. As a result, it is possible to obtain an effect that the color fading is small when a long time has passed after coating, and the cost of the product can be kept low.
  • Examples of the inorganic powder pigments include iron oxide yellow, ben pattern, acid chromium, carbon black, and the like.
  • the particle size of the inorganic powder pigment is preferably in the range of 0.5 to LO m.
  • the color of the cement spray coating material is gray when using a cement gray color or white cement.
  • the cement spray coating material of the present invention contains silica sand, calcium carbonate, clay, talc pulverized to a particle size of 100 microns or less, preferably 60 microns or less, or a mixture of two or more.
  • the blending ratio of the inorganic powder is 5 to 200 parts by weight (more preferably 10 to: LOO parts by weight) with respect to the total amount of components A) and B).
  • it is 5 parts by weight or more (more preferably 10 parts by weight or more)
  • the spray from the nozzle becomes smooth when spraying, and so-called shortness of breath does not occur.
  • the surface of the coating layer does not become brittle because the strength of the coating layer of the cement spray coating material is high by being 200 parts by weight or less (more preferably 100 parts by weight or less).
  • the particle size of the inorganic powder is adjusted to a particle size of 100 microns or less, more preferably 60 microns or less, in view of how the material passes through the spray nozzle or suction port in the can. Is good.
  • the water-soluble polymer contained functions as a water retention agent, and secures moisture necessary for the hydration reaction of fast-curing cement. Therefore, the effect of preventing dry-out and improving the strength and adhesion of the coating after curing is even more remarkable.
  • the water-soluble polymer for example, there are one or more types in which methyl cellulose, hydroxyethyl cellulose, and force methylcellulose strength are also selected.
  • the blending amount of the water-soluble polymer is preferably, for example, in the range of 0.05 wt% to 0.2 wt% of the fast-curing cement.
  • the molecular weight of the water-soluble polymer is preferably in the range of, for example, the viscosity power of the 2 wt% aqueous solution, OOOcps to 15000 cps.
  • a cement spray coating material having the composition of claims 11 to 17 is filled in an aerosol container and ejected with an injection gas.
  • aerosol By applying aerosol, it is possible for anyone to easily perform repair painting that requires special equipment and devices.
  • the area to be repaired is a small area, it can be constructed without loss of cement spray coating material.
  • the injection gas is LPG or DMF (N, N-dimethyl
  • the aerosol container includes a container main body and a valve mechanism provided on an upper portion of the container main body, and the valve mechanism includes a housing communicating with the inside of the container main body, and an orifice that opens in the housing.
  • the stem is inserted into the housing so as to be movable up and down, the biasing means for biasing the stem upward, and the stem.
  • a stem gasket that seals the orifice when not pushed down and opens the orifice when the stem is pushed down, and the housing includes the inside of the housing and the container body for the injection.
  • a communication hole communicating with a gas-filled portion of the gas, and the stem gasket is moved up and down the stem; It slides on the side surface of the serial stem and gist aerosol product according to claim 18 or 19, characterized in.
  • the stem gasket slides on the side surface of the stem when the stem moves up and down.
  • the stem gasket 17 when the stem 13 is pushed down, the stem gasket 17 is in contact with the position A above the orifice 25 on the outer surface of the stem 13.
  • the stem gasket 17 slides between the position A force and the orifice 25 on the outer surface of the stem 13 To do.
  • the cement spray coating material adhering to the periphery of the orifice 25 on the outer surface of the stem 13 can be removed, so that the orifice 25 is not clogged.
  • the aerosol product of the present invention remains in the housing by having a communication hole that communicates the inside of the housing and the portion of the container body that is filled with the gas phase of the injection gas. Cement spray coating can be removed. This will be described in detail below with reference to FIG.
  • a mixed liquid of, for example, cement spray coating material and a mixture of spraying gas remains in the housing 11 . If the mixed liquid remains as it is, the cement spray coating material in the mixed liquid may obstruct the operation of the stem 13 or clog the orifice 25.
  • the spray gas force communication hole 18 in the container body 5 flows into the inside of the housing 11 and the cement spray coating material and the spray gas are supplied.
  • the liquid level of the liquid mixture with the liquid is pushed down to the liquid level formed by the injection gas. This allows the cement spray coating material in the housing 11 to be removed.
  • the operation of the stem 13 is not hindered by the cement spray coating material remaining in the housing 11 and the stem 25 is not clogged.
  • the gist of the repair method is characterized by having a process of spraying on the surface.
  • a liquid containing water is sprayed on an object, and then the cement spray coating material according to any one of claims 11 to 17 is powdered on the sprayed portion. Can be sprayed with. Thereafter, a liquid containing water may be further sprayed.
  • the cement spray coating material according to any one of claims 11 to 17 is sprayed on the object in a powder state, and then a liquid containing water is sprayed on the sprayed portion. be able to.
  • the organic powdered water is necessary for the hydration reaction of fast-curing cement.
  • a fast-hardening cement in the cement spray coating material causes a hydration reaction with water in a short time while maintaining the above, so that a high-strength coating film can be stably formed in a short time.
  • Examples of the object in the present invention include a base material that is widely used in civil engineering structures and building structures such as concrete, mortar, and slate.
  • liquid containing water examples include water, various aqueous solutions, and the cement-coated surface protection reinforcing material of the invention according to claims 1 to 6.
  • the cement spray coating material can be applied using the aerosol product according to claims 17-18.
  • construction can be performed without other tools and equipment, so the use site is small and scattered in each place. Is preferred.
  • FIG. 1 is a cross-sectional view of an aerosol product when a stem is not pushed down.
  • FIG. 2 is a cross-sectional view of an aerosol product when the stem is pushed down.
  • FIG. 3 is an explanatory diagram showing the action and effect of the aerosol product, where (a) shows a state in which liquid remains in the housing, and (b) shows a state in which the housing force liquid is pushed down.
  • microemulsion mainly composed of 2-ethylhexyl acrylate having a particle size of 0.035 microns and a solid content of 35 WT% was mixed.
  • the amount of microemulsion was 10 wt% of the total active ingredient solution (including microemulsion).
  • the cement-coated surface protection reinforcing material produced in (a) above was stored as its contents in a well-known aerosol container.
  • the aerosol container was filled with DME (1,2-dimethoxyethane) as a filling gas. At this time, the ratio of the cement coated surface protection reinforcement and DME was 200 g: 60 g of harm IJ.
  • the cement-coated surface protection reinforcing material and the filling gas may be mixed and stored in the aerosol container or may be stored separately.
  • an inner bag made of a stretchable material cover is provided inside the aerosol container, and the second coated surface protection reinforcing material is stored therein, and the filling gas is outside the inner bag ( It can be filled between the inner bag and the housing of the aerosol container.
  • the coating amount by spraying was set to 0.15 kg / m 2 .
  • the sprayed cement-enhanced surface-protecting reinforcing material is in a uniform spray form, and even when sprayed onto the concrete surface, there is no dripping and rapid absorption into the ground! .
  • cement paste was applied to the portion where the cement-coated surface protection reinforcing material was applied by a brush coating method.
  • the coating amount of the cement paste is 1. Okg / m 2.
  • the composition of the cement paste is as follows. (Cement paste;)
  • cement paste was applied to the surface of the concrete flat plate.
  • the composition, application method and application amount of the concrete flat plate and cement paste were the same as those in Example 1.
  • the cement coated surface protection reinforcing material is applied to the surface of the cement paste film by using the aerosol product for reinforcing cement coated surface protection manufactured in (b) of Example 1 above. Sprayed.
  • the coating amount by spraying was set to 0.15 kg / m 2 .
  • the application method is a method using a hand-type spray bottle, and the application amount is 0.15 kg / m 2 .
  • a cement paste without applying a base material was applied to the same concrete flat plate as in Example 1.
  • the composition, coating amount, and coating method of the cement paste are the same as in Example 1. (Test to confirm the effect of the invention)
  • Example 1 For each of Example 1, Comparative Example 1, and Comparative Example 2, the cement paste was applied and then cured at 20 ° for 14 days.
  • Table 1 shows the test results.
  • Example 2 Also in Example 2, the same effect as in Example 1 was observed.
  • alumina cement and 75 parts by weight of Portland cement were mixed and ground using an Ishikawa-type Reika machine to obtain a fast-hardening cement.
  • 10 parts by weight of ethylene vinyl acetate powder polymer (trade name DM-200, manufactured by Clariant Polymer Co., Ltd.) as an organic polymer, and 60 parts by weight of silica sand No. 300 (under 60 micron particle size) A small V-shaped The mixture was mixed until it became uniform with a blender to obtain a cement spray coating material. In order to avoid water contamination as much as possible, these machines were thoroughly dried and performed in an atmosphere of dry air.
  • the finished cement spray coating material has a powder dosage form and is substantially free of water.
  • FIG. 1 is a cross-sectional view of the aerosol container when the stem is not pushed down
  • FIG. 2 is a cross-sectional view of the aerosol container when the stem is pushed down.
  • the aerosol container 1 includes a substantially cylindrical container body 5 having an opening 3 on the upper side thereof, a valve mechanism 7 provided in the opening 3, and a valve mechanism 7 in the opening 3 of the container body 5. And a metal lid body 9 for caulking and fixing to the body. Further, the valve mechanism 7 includes a housing 11, a stem 13, a panel (biasing means) 15, a stem gasket 17, a tube 19,
  • the housing 11 is a member having a two-stage substantially cylindrical shape whose diameter is larger at the upper side and smaller at the lower side, and is fixed to the opening 3 of the container body 5 by the lid body 9.
  • the housing 11 has an upper opening 21 on its upper surface, and a rubber stem gasket 17 is attached thereto.
  • the housing 11 is provided with a lower opening 23 on the lower surface thereof, and the inside of the housing 11 and the inside of the container body 5 are communicated with each other through the lower opening 23. Further, the housing 11 is provided with a communication hole 18 on the side surface thereof for communicating the inside of the housing 11 with the inside of the container body 5.
  • the stem 13 is a substantially cylindrical member, and has an outlet 31 on the upper surface thereof and an orifice 25 on the side surface thereof.
  • the outlet 31 and the orifice 25 communicate with each other through a hollow portion in the stem 13.
  • the stem 13 is a stem provided at the center of the stem gasket 17.
  • a stem hole 29 provided at the center of the lid body 9 and the stem hole 29 is inserted so as to be movable up and down.
  • the outer surface of the stem 13 is in airtight contact with the stem hole 27 of the gasket 17.
  • the outlet 31 of the stem 13 is outside the container body 5, and the orifice 25 is located inside the housing 11.
  • the panel 15 has an upper end held in an annular panel fixing groove 33 formed on the lower side of the stem 13, and a pedestal portion 35 with its lower end projecting inward from the housing 11. It is made to contact. Therefore, this panel 15 urges the stem 13 upward.
  • the upper end of the tube 19 is fitted to the outside of the portion 37 whose diameter is reduced in the housing 11, and the lower end thereof reaches the vicinity of the bottom of the container body 5.
  • the aerosol container 1 having the above-described configuration contains a cement spray coating material, LPG, and a glass ball 39 for promoting stirring, and is allowed to stand, the container body 5 as shown in FIG. 1 and FIG. Inside, a cement spray coating layer, an LPG liquid layer, and an LPG gas layer are formed in descending order. At this time, the communication hole 18 formed in the housing 11 is in the gas layer of LPG.
  • the aerosol product of this example has an effect that the cement spray coating material does not easily clog the orifice 25 due to the above-described configuration. This will be specifically described below.
  • the stem gasket 17 When the stem 13 is pushed down, as shown in FIG. 2, the stem gasket 17 is in contact with a position A (see FIG. 2) above the orifice 25 on the outer surface of the housing 11.
  • the stem gasket 11 When returning the position of the stem 13 from the state of FIG. 2 to the state of FIG. 1, the stem gasket 11 is moved from the position A to the orifice. Slide the outer surface of the stem 13 up to 25. As a result, it is possible to remove the cement spray coating material adhering to the periphery of the orifice 25, so that the orifice 25 is not clogged.
  • the housing 11 is provided with the communication hole 18 opened in the gas phase of LPG, the cement spray coating material remaining inside the housing 11 can be removed. This will be specifically described below with reference to FIG. Since the mixed liquid of cement spray coating material and LPG (liquid layer) passes through the inside of the housing 11 when being discharged, immediately after discharging, the liquid is mixed inside the housing 11 as shown in FIG. The liquid mixture remains. If the mixed liquid remains as it is, the cement spray coating material contained in the mixed liquid may obstruct the operation of the stem 13 or clog the orifice 25.
  • the mixed liquid can be removed from the housing 11 by the action of the communication hole 18. That is, when the aerosol container 1 is allowed to stand after discharging, a cement spray coating layer, an LPG liquid layer, and an LPG gas layer are also formed in this order in the container body 5 as shown in FIG. 3 (b). Thus, the communication hole 18 comes to face the LPG gas layer. Then, the LPG gas flows into the inside of the housing 11 from the communication hole 18 and pushes down the liquid level of the mixed liquid of the cement spray coating material and LPG (liquid layer) to the LPG liquid level. As a result, the cement spray coating material in the housing 11 can be removed.
  • the cement spray coating material and the spray gas may be mixed and stored in an aerosol container, or may be stored separately.
  • an inner bag made of a stretchable material cover is provided inside the aerosol container, in which cement spray coating material is stored, and the propellant gas is outside the inner bag (inner bag). And between the aerosol container housing).
  • the concrete pier which was graffitied with color spray, was removed with a graffiti remover (cleaner, thinner).
  • a graffiti remover cleaning, thinner
  • the color spray penetrated into the inside through a minute hole on the concrete surface, and it was impossible to completely remove it.
  • the texture will be different and the result will be uncomfortable.
  • Example 4 the raw materials for the cement spray coating material were as follows.
  • Alumina cement 25 parts by weight
  • Powdered organic polymer (same as Example 3): 10 parts by weight
  • Titanium oxide manufactured by Ishihara Sangyo Co., Ltd., trade name: R—820: 5: parts by weight
  • Iron oxide yellow as inorganic powder pigment 0.4 parts by weight
  • the titanium oxide and inorganic powder face The material was added simultaneously with the powdered organic polymer and silica sand.
  • Example 4 The cement spray coating material and aerosol product produced in Example 4 exhibited the same effects as in Example 3.
  • Example 5 Basically, in the same manner as in Example 3, a cement spray coating material and an aerosol product were produced. However, in Example 5, the raw materials for the cement spray coating material were as follows.
  • Alumina cement 25 parts by weight
  • Powdered organic polymer (same as Example 3): 10 parts by weight
  • Gypsum (made by Kokusai Shoji Co., Ltd., trade name: natural anhydrous gypsum): 10 parts by weight
  • the gypsum was added simultaneously with the powdered organic polymer and silica sand.
  • Example 6 Basically, in the same manner as in Example 3, a cement spray coating material and an aerosol product were produced. However, in Example 6, the raw materials for the cement spray coating material were as follows.
  • Alumina cement 25 parts by weight
  • Powdered organic polymer (same as Example 3): 10 parts by weight
  • the methyl cellulose, hydroxyethyl cellulose, and carboxymethyl cellulose were added simultaneously with the powdered organic polymer and silica sand.
  • Example 6 The cement spray coating material and aerosol product produced in Example 6 exhibited the same effects as in Example 3. It is needless to say that the present invention is not limited to the above-described embodiments, and can be implemented in various modes without departing from the present invention.
  • Example 3 instead of applying water to the base, the cement-coated surface protection reinforcing material produced in Example 1 can be applied. Further, instead of watering after application of the cement spray coating material, the cement coated surface protection reinforcing material produced in Example 1 can be applied.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
  • Aftertreatments Of Artificial And Natural Stones (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

L'invention concerne un matériau protecteur/renforçant pour des surfaces de revêtement en ciment, présentant une facilité d'utilisation, une portabilité in situ satisfaisante, une perte de matière réduite, et produisant un effet stable ; un matériau de revêtement pulvérisable en ciment ; un aérosol contenant ce matériau ; et un procédé d'application utilisant ces produits. Du méthyle de cellulose de catégorie #1000 est ajouté à de l'eau pour préparer une solution ayant une viscosité de 300 cP, et la solution est mélangée avec une microémulsion acrylique ayant un diamètre de particule de 0,04 µm pour obtenir un matériau protecteur/renforçant pour des surfaces de revêtement en ciment. Ce matériau protecteur/renforçant pour des surfaces de revêtement en ciment est emballé dans un récipient aérosol, et pulvérisé sur la surface d'une plaque de béton plate. Consécutivement, une pâte de ciment est appliquée avec une brosse sur la partie enduite du matériau protecteur/renforçant pour des surfaces de revêtement en ciment.
PCT/JP2006/310912 2005-06-01 2006-05-31 Materiau protecteur/renforcant pour surface de revetement en ciment et materiau de revetement pulverisable en ciment sous forme d'aerosol Ceased WO2006129727A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2005161367 2005-06-01
JP2005-161367 2005-06-01
JP2006107691A JP2007008801A (ja) 2005-06-01 2006-04-10 セメント塗布面保護強化材及びセメントスプレー塗材
JP2006-107691 2006-04-10

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WO2006129727A1 true WO2006129727A1 (fr) 2006-12-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014118183A (ja) * 2012-12-17 2014-06-30 Daiwa Can Co Ltd 噴霧容器

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7394434B2 (ja) * 2019-05-21 2023-12-08 株式会社フォーシェル ひび割れ補修方法およびひび割れ補修スプレー
JP7819010B2 (ja) * 2022-03-28 2026-02-24 日本ペイント株式会社 クリヤー塗料組成物およびコンクリート構造物の補修方法

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JPH0323281A (ja) * 1989-06-20 1991-01-31 Taisei Corp コンクリート類表面の養生方法
JPH09111152A (ja) * 1995-10-18 1997-04-28 Touyoko Giken Kk コンクリート用着色材
JPH09221374A (ja) * 1996-02-15 1997-08-26 Wacker Chemie Gmbh 鉱物性建材の被覆及び撥水性含浸法及び鉱物性建材の建材被覆剤
JPH1061201A (ja) * 1996-08-22 1998-03-03 Kankyo Biken:Kk コンクリ−トの亀裂に対する防水補修工法及びそれに用いるエア−スプレ−缶
JPH10279830A (ja) * 1997-04-03 1998-10-20 Shikoku Chem Corp 壁面塗装材及び壁面塗装方法
JPH11323195A (ja) * 1998-03-13 1999-11-26 Toto Ltd 光触媒性コ―ティング組成物
JP2003080515A (ja) * 2001-09-14 2003-03-19 Sumitomo Osaka Cement Co Ltd 超速硬セメントモルタル又は超速硬コンクリートの湿式吹付け施工方法
JP2003301142A (ja) * 2002-01-31 2003-10-21 Taiheiyo Material Kk セメント施工用プライマー、セメント施工方法、及びセメント構造物
JP2004074005A (ja) * 2002-08-16 2004-03-11 Toyo Aerosol Ind Co Ltd 粉末エアゾール用定量噴射装置
JP2004123401A (ja) * 2002-09-30 2004-04-22 Kindai Unit Kk 粉体混和剤含有一材型セメント系モルタル組成物
JP2004137428A (ja) * 2002-10-21 2004-05-13 Three Bond Co Ltd エマルジョン樹脂を用いた塗料組成物及びそれを用いたエアゾール塗料組成物

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61232178A (ja) * 1985-03-25 1986-10-16 チッソ株式会社 吐出装置
JPH0323281A (ja) * 1989-06-20 1991-01-31 Taisei Corp コンクリート類表面の養生方法
JPH09111152A (ja) * 1995-10-18 1997-04-28 Touyoko Giken Kk コンクリート用着色材
JPH09221374A (ja) * 1996-02-15 1997-08-26 Wacker Chemie Gmbh 鉱物性建材の被覆及び撥水性含浸法及び鉱物性建材の建材被覆剤
JPH1061201A (ja) * 1996-08-22 1998-03-03 Kankyo Biken:Kk コンクリ−トの亀裂に対する防水補修工法及びそれに用いるエア−スプレ−缶
JPH10279830A (ja) * 1997-04-03 1998-10-20 Shikoku Chem Corp 壁面塗装材及び壁面塗装方法
JPH11323195A (ja) * 1998-03-13 1999-11-26 Toto Ltd 光触媒性コ―ティング組成物
JP2003080515A (ja) * 2001-09-14 2003-03-19 Sumitomo Osaka Cement Co Ltd 超速硬セメントモルタル又は超速硬コンクリートの湿式吹付け施工方法
JP2003301142A (ja) * 2002-01-31 2003-10-21 Taiheiyo Material Kk セメント施工用プライマー、セメント施工方法、及びセメント構造物
JP2004074005A (ja) * 2002-08-16 2004-03-11 Toyo Aerosol Ind Co Ltd 粉末エアゾール用定量噴射装置
JP2004123401A (ja) * 2002-09-30 2004-04-22 Kindai Unit Kk 粉体混和剤含有一材型セメント系モルタル組成物
JP2004137428A (ja) * 2002-10-21 2004-05-13 Three Bond Co Ltd エマルジョン樹脂を用いた塗料組成物及びそれを用いたエアゾール塗料組成物

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014118183A (ja) * 2012-12-17 2014-06-30 Daiwa Can Co Ltd 噴霧容器

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