WO2008013033A1 - Composite de ciment et son procédé de formation - Google Patents
Composite de ciment et son procédé de formation Download PDFInfo
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- WO2008013033A1 WO2008013033A1 PCT/JP2007/063406 JP2007063406W WO2008013033A1 WO 2008013033 A1 WO2008013033 A1 WO 2008013033A1 JP 2007063406 W JP2007063406 W JP 2007063406W WO 2008013033 A1 WO2008013033 A1 WO 2008013033A1
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- Prior art keywords
- cement
- substance
- agent
- pigments
- water
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
- C04B41/4857—Other macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B41/4861—Polyalkenes
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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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/62—Coating or impregnation with organic materials
- C04B41/63—Macromolecular compounds
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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
- 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
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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
- 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
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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
- 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
- C04B2111/24—Sea water resistance
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
Definitions
- the present invention relates to a hardened cement body mainly used in the civil engineering and construction fields. Background art
- a resin type such as a silicate-based or silicone-based impregnating agent or an talyl resin or epoxy resin is used.
- the surface coating material or the polymer cement mortar for thin coating is applied.
- the impregnating agent the shielding effect of the substance that causes corrosion is insufficient, and the resin-based surface coating material has an excellent shielding effect on the substance, but it is a work process in which multiple layers are applied, so the period of time is long. It was a long and very expensive material, and neither material nor construction costs were economical.
- thin polymer segment mortar can be applied at low cost, there is a problem that if it is not applied with a certain thickness (for example, 2 mm or more), there will be no sufficient material shielding effect and cracking will occur.
- Non-Patent Document 1 In order to prevent cracks due to moisture evaporation, in addition to the method of suppressing shrinkage as expanded concrete, covering with a sheet, flooding, and spreading a curing agent are being implemented. For example, keep the surface concrete moist and set the formwork JP2007 / 063406 has been adjusted (see Non-Patent Document 1).
- the concrete temperature is often higher than the indoor temperature at the time of demolding, and there is a problem in that the amount of expansion decreases due to the scattering of moisture in the concrete.
- Non-Patent Document 1 “Section 8 Curing”, Building Construction Standard Specification ⁇ Description, JASS 5 Reinforced Concrete Construction, pp. 25-26
- a method for reducing the drying shrinkage of hardened cement paste cement mixing A shrinkage reducing agent or an expansion material is used as the material.
- Shrinkage reducing agents and expansion materials are materials that reduce drying shrinkage in hardened cement bodies, such as general buildings such as walls and floor slabs, general structures that accompany road widening, various repair materials, and cement products. It is also used for applications such as drying shrinkage prevention and curing shrinkage compensation.
- Non-Patent Document 2 For example, about 20 to 30 kg per lm 3 of concrete, general structures such as walls, roof slabs and flooring, hydraulic structures such as aquariums and pools, pavements, floor slabs, and boxes It is known to be used for general structures such as force rubbing and secondary products to prevent drying shrinkage and compensate for curing shrinkage (see Non-Patent Document 2).
- the strength of the hardened cement containing the expansion agent and shrinkage reducing agent in the realization field does not reach the specified design strength, and the hydration of the cement due to the splashing of water and the drying shrinkage may occur greatly. As a result, the resistance to a given crack may be reduced.
- Non-Patent Document 2 “Expansion Material and Shrinkage Reducing Agent”, Concrete Engineering, Vol.24 No.2, Feb 1986, pp. 56-62 Also, coating film to prevent cracking of mortar and concrete Curing agents are used, and organic coating curing agents (Patent Document 1) and organic-inorganic composite coating curing agents (Patent Documents 2 and 3) have been developed.
- organic one-inorganic composite type coating curing agent (substance shielding agent) is superior to conventional organic coating curing agent in reducing cracking, and is effective in suppressing neutralization and penetration of chloride ions.
- This coating curing agent is prone to whitening when wet, and uses aesthetics such as secondary secondary concrete in tunnels, secondary concrete products such as segments, and slab concrete in parking lots. There were some aspects that were difficult to apply. Furthermore, further improvements in performance were required for the effect of suppressing neutralization and increasing the resistance to penetration of chloride ions.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2004-244255
- Patent Document 2 Japanese Patent Laid-Open No. 2002-274976
- Patent Document 3 Japanese Patent Laid-Open No. 2005-162534 Disclosure of Invention
- the present invention is intended to solve the above-mentioned problem, and is specific to a cemented body. It is an object to provide a cement composite that has a large shielding effect on substances that cause corrosion and cracking by covering with a substance shielding agent, is suppressed in neutralization, and is difficult to whiten, and a method for forming the same. And Means for solving the problem
- the swellable clay mineral contains fluorine.
- the substance shielding agent contains a water-soluble resin.
- the hardened cement body in the present invention is a general term for hardened bodies of cement paste, mortar, and concrete.
- the cement composite coated with the material shielding agent of the present invention has better material barrier properties than those without coating, and can protect concrete and mortar from various corrosive factors such as chloride ions, carbon dioxide gas, water and acidic substances. it can. In addition, the evaporation of moisture from the inside of the concrete or mortar can be suppressed, so that the occurrence of cracks due to shrinkage can be reduced. Further, the cement composite coated with the substance shielding agent containing the pigment of the present invention has an improved neutralization inhibitory effect compared with the cement composite coated with the conventional organic-inorganic composite coating curing agent, It can also prevent whitening when wet. Therefore, it is possible to prolong the life of concrete structures by applying it to concrete structures that are newly established or close to them as preventive maintenance measures.
- the synthetic resin aqueous dispersion used in the present invention is generally a synthetic resin emulsion, an aromatic vinyl monomer, an aliphatic conjugation monomer, an ethylenically unsaturated fatty acid monomer,
- one or two or more of the other copolymerizable monomers can be obtained by emulsion polymerization.
- styrene-butadiene latex mainly composed of styrene, methyl methacrylate butadiene latex copolymerized with styrene-acrylic emulsion or styrene, ethylene-acrylic emulsion.
- the synthetic resin emulsion is more preferably one having a carboxyl group or a hydroxyl group.
- the emulsion polymerization is a general emulsion polymerization method in which monomers to be polymerized are mixed, and an emulsifier, a polymerization initiator, etc. are added to this to carry out in an aqueous system.
- the particle diameter of the synthetic resin aqueous dispersion is generally from 100 to 300 nm, but preferably has a small particle diameter of about 60 to 100 nm.
- water-soluble resins include modified starch or derivatives thereof, cellulose derivatives, polyvinyl acetate or derivatives thereof, polymers having sulfonic acid groups or salts thereof, polymers or copolymers of acrylic acid, or the like. Examples include salts, acrylamide polymers and copolymers, polyethylene glycol, and oxazoline group-containing polymers, and one or more of them can be used.
- any water-soluble resin may be used as long as it has a solubility in pure water of 1% or more at room temperature, and the hydrogen bonding group or ionic group per unit weight of the resin is preferably 10 to 60%. Further, the average molecular weight is preferably from 2, 00 to 1, 0 0 0, 0 0 0.
- the amount of water-soluble resin used is not particularly limited, but may be between 0.05 and 200 parts in terms of solids relative to 100 parts of solids in the synthetic resin aqueous dispersion. That's fine. If it is less than 0.5 part, the stability as an emulsion may be deteriorated, and if it exceeds 20 part, the durability may be lowered. Swellable clay minerals play an important role in the substance shielding effect.
- the swellable clay mineral is present in the synthetic resin aqueous dispersion, so that the clay mineral forms a laminated structure in the film during film formation. Therefore, when the substance moves from the inside or outside of the hardened cement body, it becomes a shielding wall and the moving path length becomes long, so that it provides an effect of excellent shielding performance as compared with the case where a film is formed by emulsion alone.
- swellable clay minerals include layered silicate minerals belonging to the genus Sukumetite. For example, montmorillonite, piderite, nontronite, saponite, and bentonite. These can be used for natural products, synthetic products, and processed products.
- mica can be used, and those exhibiting B-richness are preferable.
- two-key type disilisic type
- three-key type trilithic type
- four-key type Each type of tetralithic is present.
- the tetracaen mica is preferred because it has swelling properties.
- These swelling clay minerals may be used in combination of two or more.
- the aspect ratio of the swollen '14 clay mineral is preferably 50 to 5,00.
- the aspect ratio is the ratio of the length Z thickness of the clay mineral dispersed in layers obtained by electron micrographs.
- the amount of the swellable clay mineral is preferably 1 to 50 parts with respect to 100 parts of the solid content of the synthetic resin aqueous dispersion. If it is less than 1 part, shielding properties may not be obtained, and if it exceeds 50 parts, the film forming ability may be reduced.
- the pigment is used for the purpose of adjusting the color tone when coated on the hardened cement.
- a substance-shielding agent that does not add pigment forms a nearly transparent film when coated on a hardened cement and dried, but when it becomes a darker color that is slightly wetter than the color of the hardened cement before coating, Or it may become white. The cause is considered to depend on the condition of the concrete surface, the humidity in the air, and the weather.
- a coating with a certain color can be obtained regardless of the surface condition and environmental conditions of the concrete. Further, by using a pigment, neutralization and penetration of chloride ions can be remarkably suppressed, and whitening when wet can be prevented.
- the pigments used in the present invention can be classified into inorganic pigments and organic pigments based on their components.
- Inorganic pigments include natural mineral facials and chemically synthesized facials.
- organic pigments were mainly dyed from plants, such as indigo, solidified by various methods, but are currently used industrially and are all petrochemical-based. This is a synthetic pigment. Pigments are enacted by JIS.
- Inorganic pigments can be broadly classified into natural mineral pigments and synthetic inorganic pigments. Because the production volume is much higher than that of organic pigments, the Japanese Industrial Standards stipulate that 12 products with particularly high production volumes are subject to the unified standard. Ceramic pigments used for coloring ceramics are also included in inorganic pigments. Organic pigments are classified into varieties (insoluble pigments) whose chemical structure is insoluble, and lake pigments in which an inherently water-soluble synthetic dye is insolubilized.
- Natural pigments have traditionally been made by pulverizing natural rocks or minerals as they are, except for the black color that uses the firewood when burning oils and fats.
- the black cocoon is now called carbon black and is used in a wide variety of applications.
- a petal (iron oxide) and cinnabar (mercury sulfide) were used in red.
- industrially used materials are brown materials derived from natural soils such as Amberya Sienna, calcium carbonate (white or colorless) and kaolin (clay: colorless).
- colorless pigments are used to make pale colors and are also used as a raw material for lake pigments.
- a special example is a pearl pigment (with a pearly luster) that is used by grinding white mica.
- synthetic inorganic pigments synthesized chemically are zinc white (suboxide oxide) as white pigments.
- Lead and titanium white (titanium oxide) are used, and other typical inorganic pigments include synthetic petrol (red), cadmium yellow, strontium chromate (yellow), viridian, and talented cide of chrome. (Green) and synthetic ultramarine (blue).
- Inorganic pigments generally lack coloring power, transparency, and clarity compared to organic pigments, but they have good weather resistance and are often used in paints. Aluminum powder used in silver and gold paint paints is also an inorganic pigment.
- organic pigments pigments mainly composed of organic compounds are collectively referred to as organic pigments.
- Organic pigments are broadly classified into azo pigments and polycyclic pigments due to their chemical structure, but they can also be classified according to hue, and sometimes classified into insoluble pigments and lake pigments.
- Insoluble pigments are mainly polycyclic and azo.
- Typical examples of polycyclic pigments are phthalocyanine pigments, and phthalocyanine blue is an organic compound containing copper that has a clear blue color and good weather resistance. Green phthalocyanine green is a similar compound.
- Azo pigments are synthesized in water by the reaction of an aromatic amine and a coupling component. The hue changes from yellow to orange, red, and magenta, and its tinting strength is generally stronger than that of inorganic pigments.
- Lake pigments are pigments obtained by solidifying water-soluble dyes, and many of them have a high concentration and clear hues such as red lake c and wet red. These facial departments are used for printing inks.
- Lake organic pigments also include natural organic pigments that have been used to insolubilize dyes derived from animals and plants.
- one or more of the pigments listed above can be used in combination, but it is preferable to select an inorganic pigment from the standpoint of the substance shielding effect.
- an inorganic pigment from the standpoint of the substance shielding effect.
- a mixed system of triiron tetroxide and titanium dioxide is preferable.
- the blending ratio of the pigment is not particularly limited, but is usually 0.1 with respect to 100 parts of the substance shielding agent containing the synthetic resin aqueous dispersion, the water-soluble resin, the swellable clay mineral, and the pigment. ⁇ 30 parts are preferred, and 1-10 parts are more preferred. If the amount is less than 0.1 part, stable color development may not be obtained, and improvement of the substance shielding effect may not be expected. If the amount exceeds 30 parts, the improvement of the effect is reduced or the workability is lowered. There is a case.
- a crosslinking agent can also be used.
- a crosslinking agent means a cross-linking, polymerizing (three-dimensional network structure), or hydrophobic reaction by reacting with a hydrophilic functional group such as a carboxyl group, an amide group, and a hydroxyl group of an aqueous dispersion of a water-soluble resin or synthetic resin.
- a hydrophilic functional group such as a carboxyl group, an amide group, and a hydroxyl group of an aqueous dispersion of a water-soluble resin or synthetic resin.
- Those having an oxazoline group that undergoes an addition reaction with a carboxyl group also serve as a water-soluble resin, and are preferable.
- the amount of the crosslinking agent used is preferably from 0.01 to 30 parts in terms of solid content with respect to 100 parts of the total solid content of the synthetic resin aqueous dispersion and the water-soluble resin. If it is less than 1 part, the crosslinkability is low and the polymer cannot be polymerized. If it exceeds 30 parts, the effect reaches its peak.
- the method for synthesizing the substance shielding agent of the present invention is preferably a method in which a water-soluble resin, a swellable clay mineral and a pigment are mixed in water in advance, and then a synthetic resin aqueous dispersion and a crosslinking agent are mixed.
- the pigment may be mixed after the water-soluble resin and the swellable clay mineral are previously mixed in water, then the synthetic resin aqueous dispersion and the crosslinking agent are mixed, and finally mixed.
- the method for coating the substance shielding agent of the present invention is not particularly limited as long as it can form a substance shielding film uniformly, and can be sprayed or applied with a brush or a roller. .
- the material shielding agent of the present invention is basically coated on a hardened material.
- a hardened material for example, when a new hardened cement body is produced, the point at which the solidification of the cement proceeds and the fluidity is lost (for example, When finishing the iron, it may be covered with a cement around the start time of cement setting.
- Coverage of material shielding agent of the present invention is preferably 5 0 ⁇ 5 0 0 g Zm 2, 1 0 0 ⁇ 4 0 0 g is more preferable. If it is less than 50 g Zm 2 , the substance shielding effect cannot be expected, and if it exceeds 500 g / m 2 , the shielding effect reaches its peak instead of the cost.
- the cement hardened body covering the substance shielding agent of the present invention is not particularly limited and can be applied to ordinary cement paste, mortar, and concrete. Mortar contains cement, fine aggregate, and water, and admixtures and admixtures are added as necessary. Added. Concrete also contains coarse aggregate.
- the material shielding agent of the present invention is mainly applied to members constructed using cement, but in some cases, it is molded with other than cement such as stone, brick, wood, tile, gypsum plaster, gypsum etc. It can be applied to other than hardened cement bodies such as molded bodies.
- various portland cements such as normal, early strength, very early strength, low heat, and moderate heat, various mixed cements obtained by mixing these portland cements with blast furnace slag, fly ash, or silica, Also included are filler cement mixed with limestone powder and blast furnace slow-cooled slag fine powder, environmentally friendly cement manufactured using various industrial wastes as the main raw material, so-called eco-cement, etc. More than one species can be used together.
- the aggregate used in the present invention is not particularly limited. Specific examples include natural aggregates such as key sand and limestone, artificial aggregates such as blast furnace water slag, blast furnace slow-cooled slag, and recycled aggregate. In addition, a heavy aggregate having a specific gravity of 3 O g Z cm 3 or more can be used. Specific examples thereof include, for example, an electric furnace oxidation period slag-based aggregate, Non-ferrous fine slag aggregates, such as nickel slag, Hue chrome slag, copper slag, zinc slag, and lead slag, and natural aggregates include peridotite aggregates, so-called Examples include olivine sand and emery ore. In the present invention, one or more of these can be used in combination.
- the amount of water used when producing mortar and concrete is not particularly limited because it varies depending on the purpose of use, application, and the blending ratio of each material, but usually 25 to 60% in terms of water cement The range is preferably 30 to 55%. If the water cement is less than 25%, it is difficult to obtain fluidity, and the calorific value becomes extremely large. Conversely, if it exceeds 60%, it may be difficult to ensure strength development. In addition, mass transfer tends to be easy, and durability tends to be difficult to ensure.
- Agent AE water reducing agent, high performance water reducing agent, high performance AE Water reducing agent, setting modifier, antifoaming agent, thickener, antifungal agent, antifreezing agent, shrinkage reducing agent, fiber material such as steel fiber, vinylon fiber, carbon fiber, wollastonite fiber, polymer, bentonite, etc.
- clay minerals and anion exchangers such as hydrotalcite can be used as long as the object of the present invention is not substantially inhibited.
- the method of protecting a hardened cement body with the substance shielding agent of the present invention has improved resistance compared to a method in which it is not coated against any corrosion factors.
- preventive maintenance that covers the surface of concrete structures in order to protect them from the ingress of salt, ions, carbon dioxide, water, and acidic substances. It can also be used for the purpose of delaying the progress of corrosion when the degree of deterioration is slight.
- it can be used in combination with construction that removes the deteriorated part and repairs the cross section with polymer cement mortar, electrochemical repair work, etc., and it can be repaired with higher quality by combining with various repair methods. is there.
- Example 1 it is possible to suppress mass transfer from the inside of the hardened cement body, and in particular, it is possible to suppress the moisture evaporation speed that causes cracking due to drying. It can be used as a curing agent during construction, and can also be used to protect concrete and mortar from cracking.
- Example 1 It is possible to suppress mass transfer from the inside of the hardened cement body, and in particular, it is possible to suppress the moisture evaporation speed that causes cracking due to drying. It can be used as a curing agent during construction, and can also be used to protect concrete and mortar from cracking.
- Mortar was prepared by mixing 50 parts of water and 200 parts of fine aggregate with 100 parts of cement. Using this mortar, soil with a thickness of 100 mm and an area of 1 O m 2 was placed. After congealing and curing until 3 days of age, 3 parts of various pigments shown in Table 1 are added to 7 parts of the substance shielding agent, and this substance shielding agent is applied at 200 g per 1 m 2 of the mortar surface. did. The occurrence of cracks was observed after 9 days of age.
- the same amount of the same substance shielding agent was applied to the 40 X 40 X 16 O mm specimens made from the same mortar at the same time, and neutralization resistance due to accelerated neutralization or simulated seawater The penetration resistance of chloride ion was evaluated by immersion. .
- Fine aggregate Himekawa, Niigata Prefecture, specific gravity 2.6 2
- Pigment Commercially available white inorganic pigment, titanium dioxide
- Pigment mouth Commercially available black inorganic pigment, carbon black
- Pigment C Commercially available gray inorganic pigment, mixed system of triiron tetroxide and titanium dioxide
- Pigment II Commercially available brown inorganic pigment, ferric trioxide
- Pigment E Commercially available yellow inorganic pigment, chromium oxide
- Organic one inorganic composite type film curing agent Product name “CA 2 1 2” manufactured by Toagosei Co., Ltd., synthetic resin aqueous dispersion (ethylene acrylic acid copolymer emulsion, molecular weight: 2 7 500, acrylic acid) Z copolymerized ethylene ratio: 1 5/8 5, solids: 3 0%) over swelling clay mineral (N a tetrasic My force, the composition formula:. NaMg 2 5 (SkO) F 2) of the complex type (pigment Does not contain)
- Substance shielding agent A mixture of the above organic one-inorganic composite type coating curing agent with pigments.
- Conventional coating curing agent Commercially available EVA coating curing agent
- Chloride ion penetration resistance test After aging at 20 ° C up to 14 days of age, It was immersed in simulated seawater for 4 weeks. The cured product was cut and the penetration depth of chloride ion was measured by the silver nitrate-fluoroceion method.
- Whitening confirmation test coated with coating curing agent in a proportion of 2 00 gZm 2 to concrete pavement plate 30 c mX 30 cm.
- the pavement board was immersed in water at 20 ° C from the first day after coating, and pulled up from the water from the third day after immersion, and observed for whitening.
- X when the area was whitened over 1Z5 or more, ⁇ when the area was less than 1/5 of the area and 1/10 or more was whitened, and ⁇ when the area was less than 1-10.
- Experiment No.1-9 uses EVA coating curing agent. From Table 1, the treatment method of the present invention prevents cracking of mortar, dramatically reduces neutralization and penetration of chloride ions, Moreover, it turns out that whitening is difficult when wet.
- Example 2
- Example 2 The coating amount per 1 m 2 of the substance shielding agent used in Experiment No.1-3 of Example 1 (mixture of organic-inorganic composite type film curing agent and pigment) changed as shown in Table 2. The procedure was the same as in Example 1 except that. The results are also shown in Table 2. Table 2
- Coarse aggregate Commercial coarse aggregate, G max 25 mm Table 3
- Example 4 After using the mortar used in Example 1, at the timing shown in Table 4, the material shielding agent containing the pigment used in Experiment No. 1-3 of Example 1 per 20 m 2 was added. 0 g was applied. However, poultice curing was performed from the end of the setting (measured according to AS TM C4003) to the application of the substance shielding agent. After applying the substance shielding agent, we removed the compress. The occurrence of cracking after 1 day of age was confirmed in the same manner as in Example 1. The results are also shown in Table 4. Table 4
- the substance shielding agent of the present invention By using the substance shielding agent of the present invention, cracking of mortar or concrete is effectively prevented, and the neutralization suppressing effect and chloride ion shielding properties are also improved. In addition, since it can prevent whitening when wet, it can be used widely in civil engineering and construction fields.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Paints Or Removers (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07768157.5A EP2045229A4 (en) | 2006-07-26 | 2007-06-28 | CEMENT COMPOSITE AND MANUFACTURING METHOD THEREFOR |
JP2008526715A JP5356814B2 (ja) | 2006-07-26 | 2007-06-28 | セメント複合体およびその形成方法 |
CN200780027955.4A CN101495426B (zh) | 2006-07-26 | 2007-06-28 | 水泥复合体及其形成方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006202801 | 2006-07-26 | ||
JP2006-202801 | 2006-07-26 |
Publications (1)
Publication Number | Publication Date |
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WO2008013033A1 true WO2008013033A1 (fr) | 2008-01-31 |
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ID=38981349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2007/063406 WO2008013033A1 (fr) | 2006-07-26 | 2007-06-28 | Composite de ciment et son procédé de formation |
Country Status (5)
Country | Link |
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EP (1) | EP2045229A4 (ja) |
JP (1) | JP5356814B2 (ja) |
CN (1) | CN101495426B (ja) |
TW (1) | TWI447092B (ja) |
WO (1) | WO2008013033A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010202467A (ja) * | 2009-03-04 | 2010-09-16 | Denki Kagaku Kogyo Kk | 組成物及び含浸用組成物 |
JP2010241664A (ja) * | 2009-04-10 | 2010-10-28 | Denki Kagaku Kogyo Kk | セメントコンクリート硬化体、及びそれを用いたコンクリート構造物内部にある鋼材の防食方法 |
JP2012206900A (ja) * | 2011-03-30 | 2012-10-25 | Takenaka Komuten Co Ltd | コンクリートからのアンモニアガス放散の抑制方法 |
CN109384425A (zh) * | 2018-12-04 | 2019-02-26 | 贵州欧瑞欣合环保股份有限公司 | 一种覆盖材料的增韧方法 |
Families Citing this family (1)
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KR102287712B1 (ko) * | 2018-01-10 | 2021-08-06 | 미쓰이스미토모겐세쓰 가부시키가이샤 | 모르타르와 그 제조 방법 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002274976A (ja) | 2001-03-14 | 2002-09-25 | Toagosei Co Ltd | 水硬性無機材料の硬化方法 |
JP2004244255A (ja) | 2003-02-13 | 2004-09-02 | Taiheiyo Material Kk | モルタル・コンクリート用塗膜養生剤 |
JP2005162534A (ja) | 2003-12-03 | 2005-06-23 | Denki Kagaku Kogyo Kk | セメント硬化体の養生方法 |
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2007
- 2007-06-28 CN CN200780027955.4A patent/CN101495426B/zh not_active Expired - Fee Related
- 2007-06-28 WO PCT/JP2007/063406 patent/WO2008013033A1/ja active Application Filing
- 2007-06-28 JP JP2008526715A patent/JP5356814B2/ja active Active
- 2007-06-28 EP EP07768157.5A patent/EP2045229A4/en not_active Withdrawn
- 2007-07-25 TW TW096127027A patent/TWI447092B/zh not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002274976A (ja) | 2001-03-14 | 2002-09-25 | Toagosei Co Ltd | 水硬性無機材料の硬化方法 |
JP2004244255A (ja) | 2003-02-13 | 2004-09-02 | Taiheiyo Material Kk | モルタル・コンクリート用塗膜養生剤 |
JP2005162534A (ja) | 2003-12-03 | 2005-06-23 | Denki Kagaku Kogyo Kk | セメント硬化体の養生方法 |
Non-Patent Citations (3)
Title |
---|
"Expansive Admixtures and Shrinkage Reducing Agents", CONCRETE ENGINEERING, vol. 24, no. 2, February 1986 (1986-02-01), pages 56 - 62 |
"Standard Specifications for construction work and Explanations", JASS 5 REINFORCED CONCRETE WORK, pages 25 - 26 |
See also references of EP2045229A4 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010202467A (ja) * | 2009-03-04 | 2010-09-16 | Denki Kagaku Kogyo Kk | 組成物及び含浸用組成物 |
JP2010241664A (ja) * | 2009-04-10 | 2010-10-28 | Denki Kagaku Kogyo Kk | セメントコンクリート硬化体、及びそれを用いたコンクリート構造物内部にある鋼材の防食方法 |
JP2012206900A (ja) * | 2011-03-30 | 2012-10-25 | Takenaka Komuten Co Ltd | コンクリートからのアンモニアガス放散の抑制方法 |
CN109384425A (zh) * | 2018-12-04 | 2019-02-26 | 贵州欧瑞欣合环保股份有限公司 | 一种覆盖材料的增韧方法 |
Also Published As
Publication number | Publication date |
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CN101495426A (zh) | 2009-07-29 |
TWI447092B (zh) | 2014-08-01 |
JP5356814B2 (ja) | 2013-12-04 |
CN101495426B (zh) | 2013-01-02 |
EP2045229A4 (en) | 2013-08-14 |
EP2045229A1 (en) | 2009-04-08 |
JPWO2008013033A1 (ja) | 2009-12-17 |
TW200815312A (en) | 2008-04-01 |
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