KR101790990B1 - Elastomeric Concrete Composition and Constructing Methods Using Thereof - Google Patents

Elastomeric Concrete Composition and Constructing Methods Using Thereof Download PDF

Info

Publication number
KR101790990B1
KR101790990B1 KR1020150107110A KR20150107110A KR101790990B1 KR 101790990 B1 KR101790990 B1 KR 101790990B1 KR 1020150107110 A KR1020150107110 A KR 1020150107110A KR 20150107110 A KR20150107110 A KR 20150107110A KR 101790990 B1 KR101790990 B1 KR 101790990B1
Authority
KR
South Korea
Prior art keywords
weight
parts
concrete composition
elastic concrete
elastic
Prior art date
Application number
KR1020150107110A
Other languages
Korean (ko)
Other versions
KR20170015593A (en
Inventor
김문희
Original Assignee
주식회사 제니스코리아
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 주식회사 제니스코리아 filed Critical 주식회사 제니스코리아
Priority to KR1020150107110A priority Critical patent/KR101790990B1/en
Publication of KR20170015593A publication Critical patent/KR20170015593A/en
Application granted granted Critical
Publication of KR101790990B1 publication Critical patent/KR101790990B1/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24Macromolecular compounds
    • C04B24/28Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B24/282Polyurethanes; Polyisocyanates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02Granular materials, e.g. microballoons
    • C04B14/04Silica-rich materials; Silicates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/02Alcohols; Phenols; Ethers
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/08Fats; Fatty oils; Ester type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats

Abstract

The present invention relates to an elastic concrete composition which comprises, based on the total weight of the elastic concrete composition, 5 to 15 weight% of a base consisting of 20 to 60 wt% of a polyurethane prepolymer, 1 to 10 wt% of an anionic emulsifier, 1 to 10 wt% of caustic soda, and 20 to 60 wt% part; 5 to 10 parts by weight of a curing agent consisting of 5 to 10% by weight of octylphenol ethoxylate, 45 to 75% by weight of castor oil, hydrogenated castor oil or a mixture thereof, and 15 to 45% by weight of calcium nitrate; And 75 to 90 parts by weight of a filler composed of 5 to 10% by weight of a ceramic binder, 3 to 7% by weight of silica, 55 to 75% by weight of cement and 15 to 30% by weight of a filler, and a method of using the same .
The elastic concrete composition according to the present invention, specifically the quick-setting elastic concrete composition, not only provides a rapid curing rate, but also provides desired physical properties in concrete construction.

Description

Elastomeric Concrete Composition and Constructing Methods Using Thereof
The present invention relates to an elastic concrete composition and a construction method using the same. More particularly, the present invention relates to an elastic concrete composition for use in an asphalt bridge, a tollgate repair, a construction expansion joint, a drainage crinkle and an asphalt finishing treatment, A concrete composition and a construction method using the same.
Concrete is used as the center of civil engineering work or construction materials such as dams, road pavement, and bridges by using cement paste to surround aggregate with hydration reaction by cement reacting with water.
A small amount of concrete is required for repairing and reinforcing houses and various buildings. In some cases, it is difficult to enter the concrete truck when the concrete is installed at the construction site.
On the other hand, ordinary Portland cement concrete is used for repairing asphalt bridges, toll gates, construction expansion joints, drainage crinches, and asphalt finishing treatment.
In this case, it is standard to apply after curing for at least 14 days and chipping and grinding the plane and side of the installation site to make a straight face.
In areas where sandblasting is possible, sandblasting is performed to remove contaminants and the like.
However, when the above-mentioned Portland cement concrete is used, it is not suitable for repairing structures such as asphalt bridges and toll gates that must be repaired promptly due to high frequency of use due to prolonged curing.
Therefore, there is a case in which a structure is repaired using a quick hard concrete composition. However, such a method is problematic in that a hydration process, deterioration and hydrolysis of the concrete cause the gas coming out of the pores, moisture caused by the osmotic phenomenon, Cracks and the like occur due to the action of expansion. As a result, after 1 to 2 years, there is a problem such as cracking, peeling and lifting phenomenon at the concrete casting site, and it is necessary to repair it from time to time.
The present invention has been made to solve the above-mentioned problems, and provides an elastic concrete composition, preferably a quick-setting elastic concrete composition, which can be applied to construction or repair of a building requiring rapid repair work.
The present invention
Based on the total weight of the elastic concrete composition,
5 to 15 parts by weight of a base consisting of 20 to 60% by weight of a polyurethane prepolymer, 1 to 10% by weight of an anionic emulsifier, 1 to 10% by weight of caustic soda and 20 to 60% by weight of water;
5 to 10 parts by weight of a curing agent consisting of 5 to 10% by weight of octylphenol ethoxylate, 45 to 75% by weight of castor oil, hydrogenated castor oil or a mixture thereof, and 15 to 45% by weight of calcium nitrate; And
And 75 to 90 parts by weight of a filler composed of 5 to 10% by weight of a ceramic binder, 3 to 7% by weight of silica, 55 to 75% by weight of cement and 15 to 30% by weight of a filler,
Further comprising 5 to 40 parts by weight of a deformation preventing agent based on 100 parts by weight of the elastic concrete composition,
Further comprising 1 to 10 parts by weight of a smoothing agent based on 100 parts by weight of the elastic concrete composition,
Further comprising 1 to 8 parts by weight of an amino group-containing siloxane based on 100 parts by weight of the elastic concrete composition,
Further comprising 5 to 20 parts by weight of octyltriethoxysilane based on 100 parts by weight of the elastic concrete composition,
Further comprising 10 to 50 parts by weight of an anti-peeling agent based on 100 parts by weight of the elastic concrete composition,
Further comprising 1 to 10 parts by weight of a crosslinked polyacrylate salt based on 100 parts by weight of the elastic concrete composition,
Further comprising 1 to 10 parts by weight of tetraethylene pentamine based on 100 parts by weight of the elastic concrete composition,
And 0.5 to 5 parts by weight of polyvinyl acetate ethylene latex based on 100 parts by weight of the elastic concrete composition.
delete
delete
delete
In addition,
A construction surface cleaning step of cleaning the construction surface to clean the elastic concrete composition;
5 to 15 parts by weight, based on the total weight of the elastic concrete composition, of a base consisting of 20 to 60% by weight of a polyurethane prepolymer, 1 to 10% by weight of an anionic emulsifier, 1 to 10% by weight of caustic soda, and 20 to 60% 5 to 10 parts by weight of a curing agent consisting of 5 to 10% by weight of octylphenol ethoxylate, 45 to 75% by weight of castor oil, hydrogenated castor oil or a mixture thereof, and 15 to 45% by weight of calcium nitrate; And 75 to 90 parts by weight of a filler consisting of 5 to 10% by weight of ceramic binder, 3 to 7% by weight of silica, 55 to 75% by weight of cement and 15 to 30% by weight of filler, and an elasticity- And 5 to 40 parts by weight based on 100 parts by weight of the elastic concrete composition. The smoothing agent further comprises 1 to 10 parts by weight based on 100 parts by weight of the elastic concrete composition, wherein the amino group-containing siloxane is contained in an amount of 1 to 8 wt. Further comprising octyltriethoxysilane in an amount of 5 to 20 parts by weight based on 100 parts by weight of the elastic concrete composition and further comprising 10 to 50 parts by weight of an anti-peeling agent based on 100 parts by weight of the elastic concrete composition, Further comprising 1 to 10 parts by weight of a polyacrylate salt based on 100 parts by weight of the elastic concrete composition, Wherein the elastic concrete composition further comprises 1 to 10 parts by weight of tylenepentamine based on 100 parts by weight of the elastic concrete composition and 0.5 to 5 parts by weight of polyvinyl acetate ethylene latex based on 100 parts by weight of the elastic concrete composition, ;
Placing the concrete composition in which the agitating step is completed by placing the elastic concrete composition on the surface of the concrete; And
And a finishing step of finishing and finishing the pouring part after the pouring step is completed.
delete
delete
delete
The elastic concrete composition according to the present invention, particularly the quick-setting elastic concrete composition, not only provides a rapid curing rate, but also provides a desired physical property at the time of concrete construction.
Hereinafter, the present invention will be described in detail.
In one aspect, the present invention relates to a method for producing an elastic concrete composition, which comprises, by weight based on the total weight of the elastic concrete composition, 20 to 60% by weight of a polyurethane prepolymer, 1 to 10% by weight of an anionic emulsifier, 1 to 10% by weight of caustic soda, 5 to 15 parts by weight; 5 to 10 parts by weight of a curing agent consisting of 5 to 10% by weight of octylphenol ethoxylate, 45 to 75% by weight of castor oil, hydrogenated castor oil or a mixture thereof, and 15 to 45% by weight of calcium nitrate; And 75 to 90 parts by weight of a filler composed of 5 to 10% by weight of a ceramic binder, 3 to 7% by weight of silica, 55 to 75% by weight of cement and 15 to 30% by weight of a filler.
According to another aspect of the present invention, there is provided a method for constructing an elastic concrete composition, the method comprising: 5 to 15 parts by weight, based on the total weight of the elastic concrete composition, of a base consisting of 20 to 60% by weight of a polyurethane prepolymer, 1 to 10% by weight of an anionic emulsifier, 1 to 10% by weight of caustic soda, and 20 to 60% 5 to 10 parts by weight of a curing agent consisting of 5 to 10% by weight of octylphenol ethoxylate, 45 to 75% by weight of castor oil, hydrogenated castor oil or a mixture thereof, and 15 to 45% by weight of calcium nitrate; And 75 to 90 parts by weight of a filler composed of 5 to 10% by weight of a ceramic binder, 3 to 7% by weight of silica, 55 to 75% by weight of cement and 15 to 30% by weight of a filler, and stirring the mixture uniformly step; Placing the concrete composition in which the agitating step is completed by placing the elastic concrete composition on the surface of the concrete; And a finishing step of finishing and finishing the poured portion after the pouring step is completed.
The elastic concrete composition according to the present invention, preferably a quick-setting elastic concrete composition, is used for repairing new buildings, bridges, tollgates, asphalt finishing, drainage crunches and the like.
The elastic concrete composition according to the present invention comprises a base, a hardener and a filler.
Here, the base includes 20 to 60% by weight of a polyurethane prepolymer, 1 to 10% by weight of an anionic emulsifier, 1 to 10% by weight of caustic soda, and 20 to 60% by weight of water.
The polyurethane prepolymer according to the present invention is not particularly limited as long as it is a polyurethane prepolymer commonly used in the art, but is preferably a polyether polyol, a polyester polyol, a copolymer polyol, ethylene glycol, propylene glycol, It is preferable to use a polyurethane prepolymer prepared by reacting 25 to 30% by weight of a mixture of two or more compounds with 70 to 75% by weight of methylene diphenyl diisocyanate.
Here, the polyol affects fluidity and workability before curing, affects physical and chemical performance after curing, and blistering phenomenon and unevenness may occur on the surface during curing when it is used in excess, It is preferable to adjust it appropriately.
The amount of the polyurethane prepolymer used is preferably 20 to 60% by weight based on 100% by weight of the base.
The anionic emulsifier according to the present invention is intended to facilitate the dispersion of the fine particles contained in the solvent contained in the base of the elastic concrete composition, i.e., water, and any anionic emulsifier conventionally used in the art having such an object It may be used.
Preferable examples of the anionic emulsifier include sodium acid salts such as sodium methanesulfonate, alkali metal salts of ligninsulfonic acid, naphthalene sulfonic acid derivatives, chlorobenzene derivatives, higher fatty acid alkali metal salts, alkylbenzene sulfonates, alpha-olefin sulfonates, poly Oxyethylene alkylphenyl ethers, sodium alkylaryl sulfonates, or mixtures thereof.
The amount of the anionic emulsifier used is preferably 1 to 10% by weight based on 100% by weight of the base.
The caustic soda according to the present invention allows the elastic concrete composition to maintain an appropriate pH, for example, a pH of 7 to 12. When the pH is less than 7, calcium nitrate does not react.
 The caustic soda is preferably used in an amount of 1 to 10% by weight based on 100% by weight of the base constituting the elastic concrete composition.
The water according to the present invention is used as a solvent of the base, and the amount of the water used is preferably 20 to 60% by weight based on 100% by weight of the base constituting the elastic concrete composition.
The octylphenol ethoxylate according to the present invention is an ethoxylated octylphenol derivative, which is included in the curing agent constituting the elastic concrete composition and mixed with the base so that curing can be easily performed when the concrete is laid.
The amount of the octylphenol ethoxylate to be used is preferably 5 to 10% by weight based on 100% by weight of the curing agent constituting the elastic concrete composition.
The castor oil, hydrogenated castor oil or a mixture thereof according to the present invention is mixed with a base to allow the concrete composition to cure, while keeping the curing agent in an emulsion form.
The castor oil is a natural oil having an iodine value of 120 or less, a hydroxyl value of 100 to 200, and an acid value of 1 or less is used, and affects the curing rate, physical and chemical performance after curing, .
The amount of the castor oil, hydrogenated castor oil, or mixture thereof is preferably 45 to 75 wt% based on 100 wt% of the curing agent.
The calcium nitrate according to the present invention is used for curing the base, and it is preferably used in an amount of 15 to 45% by weight based on 100% by weight of the curing agent constituting the elastic concrete composition.
The filler according to the present invention is contained in an elastic concrete composition, preferably a quick-setting elastic concrete composition, so as to perform not only a binder but also add physical properties of the cured concrete.
The filler is in the form of a powder and comprises 5 to 10% by weight of a ceramic binder, 3 to 7% by weight of silica, 55 to 75% by weight of cement, 15 to 30% by weight of a filler or a mixture thereof, To 90 parts by weight are used.
The particle size of the filler is not particularly limited, but it is preferable to have a particle size of several millimeters to several nanometers.
The ceramic binder according to the present invention is preferably a mixture of sodium silicate, potassium silicate, lithium silicate or a mixture of at least one of them.
As the amount of the ceramic binder to be used increases, the color, weatherability, adsorption force and coloring effect are increased, and carbon dioxide floating in the air is absorbed and absorbed through the whole of the ultraviolet wavelength region and the visible light wavelength region It can act as an ultraviolet stabilizer.
The cement according to the present invention may include cement commonly used in the art, for example, general Portland cement, special cement, and the like.
The filler according to the present invention may be any filler conventionally used in the art, but preferably an organic filler or an inorganic filler may be used, and silica, acrylic powder, aluminum hydroxide or the like may be preferably used .
In a specific embodiment, the elastic concrete composition according to the present invention may further comprise 5 to 40 parts by weight of a strain inhibitor based on 100 parts by weight of the composition.
It is recommended that suitable antidegradants include polyethylene, ethylene vinyl acetate, polybutene, impact polystyrene, polypropylene or mixtures thereof.
If the amount of the antifriction agent is less than 5 parts by weight, the effect of preventing deformation is insignificant. When the amount of the antifriction agent is more than 40 parts by weight, mixing with other components is not easy when the asphalt layer is produced.
In another specific embodiment, the elastic concrete composition according to the present invention may further comprise 1 to 10 parts by weight of fibers based on 100 parts by weight of the elastic concrete composition in order to improve compressive strength, flexural strength and crack resistance.
The fiber may be any fiber as long as it is a conventional fiber in the art, but it is preferable to use at least one of carbon fiber, synthetic fiber, glass fiber, vinyl fiber and aramid fiber or a mixture thereof good.
In another specific embodiment, the elastic concrete composition according to the present invention may further comprise a retarding agent for controlling the operation time and / or the strength development rate, and the amount thereof is 0.05 to 2 parts by weight based on 100 parts by weight of the elastic concrete composition .
Preferred as the retarder is a carboxylic acid such as tartaric acid, citric acid, gluconic acid, or a salt thereof, or a mixture of at least one selected from these.
In another specific embodiment, the composition may further comprise 1 to 10 parts by weight of a leveling agent based on 100 parts by weight of the elastic concrete composition according to the present invention.
The smoothing agent is added in order to improve the self-leveling (self-charging performance) of the paste, and any one or more selected from the group consisting of a polyoxide system, a urethane system and a polycarboxylic acid system may be used. However, May be used.
In another specific embodiment, the elastic concrete composition according to the present invention further comprises an amino-functional siloxane to effectively cure at room temperature and to provide improved properties such as heat resistance, low temperature performance, chemical resistance, solvent resistance and oil resistance can do.
The amino-containing siloxane is not particularly limited, and examples thereof include aminomethylpolydimethylsiloxane. The amount of the amino-containing siloxane to be used is preferably 1 to 8 parts by weight based on 100 parts by weight of the elastic concrete composition.
As another specific embodiment, the elastic concrete composition according to the present invention may further contain octyltriethoxysilane to improve the adhesion to the construction surface and the adhesion strength.
The octyltriethoxysilane may be used in the form of a monomer. The molecular weight of the monomer is not particularly limited, but is preferably 150 to 450 Da, and the amount of the octyltriethoxysilane used is preferably 5 to 20 wt. It is recommended to wife.
In another specific embodiment, the elastic concrete composition according to the present invention may further include 10 to 50 parts by weight of an anti-peeling agent based on 100 parts by weight of the elastic concrete composition in order to prevent peeling from the surface to be applied easily.
Preferred examples of the anti-peeling agent include a polyacid-based anti-peeling agent having a specific gravity of 1.0 or more and a viscosity of 110 cPs, An amine-based anti-peeling agent having an acid value of 10 KOH / g or less and a total amine value of 140 to 400 HCl / g.
In another embodiment, the elastic concrete composition according to the present invention may further comprise 1 to 10 parts by weight of a crosslinked polyacrylate salt based on 100 parts by weight of the elastic concrete composition in order to prevent moisture penetration and improve durability.
When the water penetrates into the concrete, the crosslinked polyacrylate salt expands due to moisture to fill the voids in the concrete, thereby preventing the penetration of moisture, thereby enhancing the durability of the interior of the concrete.
More specifically, the crosslinked polyacrylate salt is a crosslinked material of a polymer of an acrylate salt, and is formed of a copolymer of acrylic acid and sodium acrylate containing acrylic acid as a crosslinking agent becomes, for (C 3 H4O 2 .C 3 H 3 O 2 Na) it has a molecular formula of x.
The crosslinked polyacrylate salt having the above structure can be obtained by crosslinking a polyacrylate salt in an asphalt layer according to the introduction of a hydrophilic group in a three-dimensional network structure or a single-chain structure through cross-linking between polymer chains When it infiltrates into the water, it inflates to fill the voids in the concrete, thereby preventing the penetration of moisture and improving the durability.
In another specific embodiment, the elastic concrete composition according to the present invention may further comprise 1 to 10 parts by weight of tetraethylenepentamine (TEPA) based on 100 parts by weight of the concrete composition for the purpose of controlling viscosity and strength.
Tetraethylenepentamine is a kind of polyamine which provides strength enhancement of concrete through curing and viscosity control of concrete composition and its amount to be used is 1 to 10 parts by weight based on 100 parts by weight of concrete composition, If the amount is more than 10 parts by weight, an excess amount thereof may adversely affect the inherent properties of the concrete.
 In another specific embodiment, the elastic concrete composition according to the present invention may further contain 0.5 to 5 parts by weight of polyvinyl acetate ethylene latex based on 100 parts by weight of the concrete composition to improve adhesion and elasticity. Polyvinyl acetate ethylene latex Is less than 0.5 part by weight, the effect of improving the elasticity is insufficient. When the amount is more than 5 parts by weight, further improvement in adhesion and elasticity is not expected and it is not economical.
In another particular embodiment, the filler according to the invention may additionally comprise additives, for example additives consisting of a dimer, a chain extender, a fluidizer, a water reducing agent, a pigment or a mixture of at least two selected from these have.
Herein, it is preferable to use those which are commonly used in the art in the above-mentioned diminution agent, chain extender, fluidizing agent, water reducing agent and pigment.
The amount of the additive contained in the filler can be changed according to the user's choice, but it is preferable to use 2 to 20 parts by weight based on the total filler weight.
In one embodiment, it is preferable to use one of the dimers as trimeric acid ester, benzoic acid ester, ethylcyclohexane, 2,2,4-trimethyl-1,3-pentanediol diisobutyrate.
The chain extender may be a polyester polyol having an alkylene side chain, which is a polycondensation product of adipic acid and 2-butyl-2-ethylpropane-1,3-diol having hydroxyl groups at both ends.
The fluidizing agent is for improving the mixing and flowability of the elastic concrete composition and is not particularly limited as long as it is a fluidizing agent usually used in the art, but preferably a lignin compound, a naphthalene compound, a melamine compound and / It is preferable to use a polycarboxylic acid-based compound.
The water reducing agent is an admixture which is used to adjust the small air bubbles in the concrete when the concrete is applied.
The water reducing agent is a surfactant having an excellent bubble-generating property, and generates small bubbles evenly in the concrete to improve freezing-thawing resistance, corrosion resistance, durability and the like.
In addition, the water reducing agent improves the fluidity of the elastic concrete composition, preferably the quick-setting elastic concrete composition, thereby facilitating the concrete pouring operation, lowering the thermal conductivity of the hardened concrete, and improving the water tightness.
At this time, the water reducing agent used in the concrete composition generally has a water reducing rate of about 10 to 15%, but a water reducing rate of 20 to 30% is preferably used.
The preferred water reducing agent is preferably a naphthalene type, a melamine type, a polycarboxylic acid type, an aminosulfonic acid type water reducing agent or a mixture thereof. The content thereof is not particularly limited and can be appropriately adjusted as required. For example, 100 parts by weight of a filler 0.01 to 10 parts by weight may be used as a standard.
As another preferable water reducing agent, it is preferable to use a naphthalene type high performance water reducing agent alone or a mixed composition comprising 80 to 95% by weight of a naphthalene type water reducing agent and 5 to 20% by weight of a polycarboxylic acid type water reducing agent.
The pigment is used to add color to the elastic concrete composition to be applied, and any pigment conventionally used in the art having such a purpose may be used.
As the preferable pigment, it is preferable to use an inorganic pigment and / or an organic pigment.
The inorganic pigments include iron oxide, iron hydroxide, chromium oxide, titanium oxide, or mixtures thereof.
At this time, iron oxide and iron hydroxide show reddish brown color, chromium oxide shows green, and titanium oxide shows white.
The organic pigments may be carbon black, azo pigments or mixtures thereof.
The method for applying the elastic concrete composition according to the present invention, specifically the quick-setting elastic concrete composition, is not particularly limited as long as it is a method commonly used in the art. However, in order to explain the present invention more easily, Then,
The method of constructing the elastic concrete composition includes: a surface preparation step of cleaning the surface to be cleaned of the elastic concrete composition;
5 to 15 parts by weight, based on the total weight of the elastic concrete composition, of a base consisting of 20 to 60% by weight of a polyurethane prepolymer, 1 to 10% by weight of an anionic emulsifier, 1 to 10% by weight of caustic soda, and 20 to 60% 5 to 10 parts by weight of a curing agent consisting of 5 to 10% by weight of octylphenol ethoxylate, 45 to 75% by weight of castor oil, hydrogenated castor oil or a mixture thereof, and 15 to 45% by weight of calcium nitrate; And 75 to 90 parts by weight of a filler composed of 5 to 10% by weight of a ceramic binder, 3 to 7% by weight of silica, 55 to 75% by weight of cement and 15 to 30% by weight of a filler, and stirring the mixture uniformly step;
Placing the concrete composition in which the agitating step is completed by placing the elastic concrete composition on the surface of the concrete; And
And a finishing step of finishing and finishing the poured portion after the pouring step is completed.
Here, the surface preparation step includes performing mechanical cleaning using an abrasive or a grinding machine to remove the cement latent on the surface and clean the surface.
As a specific aspect, the method of applying the elastic concrete composition, preferably the quick-setting elastic concrete composition according to the present invention is a step of applying a primer uniformly to the surface of the concrete for the stable concrete pouring after the completion of the surface preparation step .
The primer may be any of the primers commonly used in the art, but preferably includes 20 to 60% by weight of a polyurethane prepolymer, 1 to 10% by weight of an anionic emulsifier, 1 to 10% by weight of caustic soda, And 20 to 60% by weight of water; And a curing agent comprising 5 to 10% by weight of octylphenol ethoxylate, 45 to 75% by weight of castor oil, hydrogenated castor oil or a mixture thereof, and 15 to 45% by weight of calcium nitrate in a weight ratio of 1: 1 It is good to do.
Hereinafter, the present invention will be described in detail by way of examples. However, the following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
[Example 1]
28 g of polyether polyol and 72 g of methylene diphenyl diisocyanate were reacted to prepare a polyurethane prepolymer.
Next, 50 g of the polyurethane prepolymer was mixed with 5 g of sodium sulfate maleate as an anionic emulsifier, 5 g of caustic soda and 40 g of water to prepare a base.
Then, 8 g of octylphenol ethoxylate, 50 g of hydrogenated castor oil and 42 g of calcium nitrate were mixed to prepare a curing agent.
Then, 7 g of sodium silicate, 5 g of silica sand, 65 g of Portland cement and 23 g of acrylic powder as a filler were mixed as a ceramic binder to prepare a filler.
Next, 10 g of the base, 5 g of the curing agent and 85 g of the filler were mixed to prepare an elastic concrete composition.
[Example 2]
28 g of polyether polyol and 72 g of methylene diphenyl diisocyanate were reacted to prepare a polyurethane prepolymer.
Next, 50 g of the polyurethane prepolymer was mixed with 5 g of sodium sulfate maleate as an anionic emulsifier, 5 g of caustic soda and 40 g of water to prepare a base.
Then, 8 g of octylphenol ethoxylate, 50 g of castor oil and 42 g of calcium nitrate were mixed to prepare a curing agent.
Then, 7 g of sodium silicate, 5 g of silica sand, 65 g of Portland cement and 23 g of aluminum hydroxide as a filler were mixed as a ceramic binder to prepare a filler.
Next, 10 g of the base, 5 g of the curing agent and 85 g of the filler were mixed to prepare an elastic concrete composition.
[Example 3]
5 g of a fluidizing agent containing a lignin compound as a main component and 5 g of a polycarbonate salt-based water reducing agent were further added in the same manner as in Example 1 to prepare an elastic concrete composition.
[Example 4]
The elastic concrete composition was prepared in the same manner as in Example 2 except that 5 g of a fluidizing agent containing a lignin compound as a main component and 5 g of dimer ester as a dimer were added during the production of the filler.
[Example 5]
The elastic concrete composition was prepared in the same manner as in Example 1 except that 20 g of ethylene vinyl acetate was added based on 100 g of the elastic concrete composition.
[Example 6]
The elastic concrete composition was prepared in the same manner as in Example 1 except that 1 g of tartaric acid was further added based on 100 g of the elastic concrete composition.
[Example 7]
The elastic concrete composition was prepared in the same manner as in Example 1 except that 5 g of a polyoxide-based smoothing agent was further added based on 100 g of the elastic concrete composition.
[Example 8]
The elastic concrete composition was prepared in the same manner as in Example 1 except that 5 g of aminomethyl polydimethylsiloxane was further added based on 100 g of the elastic concrete composition.
[Example 9]
The elastic concrete composition was prepared in the same manner as in Example 1 except that 10 g of octyltriethoxysilane was further added based on 100 g of the elastic concrete composition.
[Example 10]
The elastic concrete composition was prepared in the same manner as in Example 1 except that 5 g of tetraethylenepentamine (TEPA) was further added based on 100 g of the elastic concrete composition.
[Example 11]
The elastic concrete composition was prepared in the same manner as in Example 1 except that 4 g of polyvinyl acetate ethylene latex was added based on 100 g of the elastic concrete composition.
[Example 12]
The elastic concrete composition was prepared in the same manner as in Example 1 except that 25 g of a polyphosphoric acid-based anti-peeling agent having a specific gravity of 1.0 or more and a viscosity of 110 cPs as a liquid based on 100 g of the elastic concrete composition was added.
[Comparative Example 1]
The elastic concrete composition was prepared in the same manner as in Example 1 except that 50 g of asphalt was used instead of 50 g of the polyurethane prepolymer.
[Experiment 1]
The elastic concrete compositions prepared according to Examples 1 to 12 and Comparative Example 1 were placed in a certain container and cured, and physical properties such as compressive strength, elasticity, tensile strength, elongation, and pot life were measured.
 The results are shown in Table 1.
Figure 112015073694010-pat00001
As shown in Table 1, when the concrete was poured into the concrete using the elastic concrete composition prepared according to Examples 1 to 12, preferably a quick-setting elastic concrete composition, the curing speed was quicker than about 10 minutes and the tensile strength , Elasticity, elongation, tear resistance, compression deformation, and shear strength were found to satisfy the properties required for concrete construction.
Furthermore, the elastic concrete produced according to Examples 1 to 12 was superior to Comparative Example 1 in tensile strength, elasticity, elongation and impact resistance, and had a short pot life and was rapidly cured.
As described above, those skilled in the art will understand that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the embodiments described above are all illustrative and not restrictive. The scope of the present invention should be construed as being included in the scope of the present invention without departing from the scope of the present invention.

Claims (5)

  1. Based on the total weight of the elastic concrete composition,
    5 to 15 parts by weight of a base consisting of 20 to 60% by weight of a polyurethane prepolymer, 1 to 10% by weight of an anionic emulsifier, 1 to 10% by weight of caustic soda and 20 to 60% by weight of water;
    5 to 10 parts by weight of a curing agent consisting of 5 to 10% by weight of octylphenol ethoxylate, 45 to 75% by weight of castor oil, hydrogenated castor oil or a mixture thereof, and 15 to 45% by weight of calcium nitrate; And
    And 75 to 90 parts by weight of a filler composed of 5 to 10% by weight of a ceramic binder, 3 to 7% by weight of silica, 55 to 75% by weight of cement and 15 to 30% by weight of a filler,
    Further comprising 5 to 40 parts by weight of a deformation preventing agent based on 100 parts by weight of the elastic concrete composition,
    Further comprising 1 to 10 parts by weight of a smoothing agent based on 100 parts by weight of the elastic concrete composition,
    Further comprising 1 to 8 parts by weight of an amino group-containing siloxane based on 100 parts by weight of the elastic concrete composition,
    Further comprising 5 to 20 parts by weight of octyltriethoxysilane based on 100 parts by weight of the elastic concrete composition,
    Further comprising 10 to 50 parts by weight of an anti-peeling agent based on 100 parts by weight of the elastic concrete composition,
    Further comprising 1 to 10 parts by weight of a crosslinked polyacrylate salt based on 100 parts by weight of the elastic concrete composition,
    Further comprising 1 to 10 parts by weight of tetraethylene pentamine based on 100 parts by weight of the elastic concrete composition,
    Wherein the polyvinyl acetate ethylene latex further comprises 0.5 to 5 parts by weight based on 100 parts by weight of the elastic concrete composition.
  2. delete
  3. A construction surface cleaning step of cleaning the construction surface to clean the elastic concrete composition;
    5 to 15 parts by weight, based on the total weight of the elastic concrete composition, of a base consisting of 20 to 60% by weight of a polyurethane prepolymer, 1 to 10% by weight of an anionic emulsifier, 1 to 10% by weight of caustic soda, and 20 to 60% 5 to 10 parts by weight of a curing agent consisting of 5 to 10% by weight of octylphenol ethoxylate, 45 to 75% by weight of castor oil, hydrogenated castor oil or a mixture thereof, and 15 to 45% by weight of calcium nitrate; And 75 to 90 parts by weight of a filler consisting of 5 to 10% by weight of ceramic binder, 3 to 7% by weight of silica, 55 to 75% by weight of cement and 15 to 30% by weight of filler, and an elasticity- And 5 to 40 parts by weight based on 100 parts by weight of the elastic concrete composition. The smoothing agent further comprises 1 to 10 parts by weight based on 100 parts by weight of the elastic concrete composition, wherein the amino group-containing siloxane is contained in an amount of 1 to 8 wt. Further comprising octyltriethoxysilane in an amount of 5 to 20 parts by weight based on 100 parts by weight of the elastic concrete composition and further comprising 10 to 50 parts by weight of an anti-peeling agent based on 100 parts by weight of the elastic concrete composition, Further comprising 1 to 10 parts by weight of a polyacrylate salt based on 100 parts by weight of the elastic concrete composition, Wherein the elastic concrete composition further comprises 1 to 10 parts by weight of tylenepentamine based on 100 parts by weight of the elastic concrete composition and 0.5 to 5 parts by weight of polyvinyl acetate ethylene latex based on 100 parts by weight of the elastic concrete composition, ;
    Placing the concrete composition in which the agitating step is completed by placing the elastic concrete composition on the surface of the concrete; And
    And a finishing step of finishing and finishing the poured portion after the pouring step is completed.












  4. delete
  5. delete
KR1020150107110A 2015-07-29 2015-07-29 Elastomeric Concrete Composition and Constructing Methods Using Thereof KR101790990B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150107110A KR101790990B1 (en) 2015-07-29 2015-07-29 Elastomeric Concrete Composition and Constructing Methods Using Thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150107110A KR101790990B1 (en) 2015-07-29 2015-07-29 Elastomeric Concrete Composition and Constructing Methods Using Thereof

Publications (2)

Publication Number Publication Date
KR20170015593A KR20170015593A (en) 2017-02-09
KR101790990B1 true KR101790990B1 (en) 2017-10-30

Family

ID=58154305

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150107110A KR101790990B1 (en) 2015-07-29 2015-07-29 Elastomeric Concrete Composition and Constructing Methods Using Thereof

Country Status (1)

Country Link
KR (1) KR101790990B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101953831B1 (en) * 2018-09-06 2019-03-04 김경구 Durable Room Temperature-Cured Elastic Injection Material Composition For Expansion Joint Of Structure And Method For Constructing The Joint Using The Composition
KR101964590B1 (en) 2018-09-05 2019-04-04 주식회사 광림티엔아이 Polyurea resin coating composition and method for repairing and reinforcing non-structure using the same
KR101971100B1 (en) 2018-08-10 2019-04-24 주식회사 광림티엔아이 Low temperature curable polyurea coating composition and method of construction using the same
KR102100959B1 (en) * 2019-06-27 2020-04-21 우산건설 주식회사 Modified concrete composition and Manufacturing method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102130741B1 (en) * 2019-12-16 2020-07-06 주식회사 조은에스피에스 Organic and inorganic complex composition for concrete surface treatment for polyurea coating and method of surface treatment using the same
KR102077054B1 (en) * 2019-12-16 2020-02-13 주식회사 지케이기술연구소 Asphalt Concrete Compositions of Packing Type for Pothole Repair Which is Heated on the Spot and Constructing Methods Using Thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101156460B1 (en) 2011-10-28 2012-06-18 (주)에이엠지그룹건축사사무소 This construction method using mortar and elastic
KR101252447B1 (en) * 2012-10-24 2013-04-16 주식회사 제니스코리아 Quick hardening environment-friendly flooring material and constructing methods using thereof
KR101347793B1 (en) 2013-07-30 2014-01-06 강창구 Environment-friendly quick-hardening concrete composition for repairing using seaweeds and constructing methods using thereof
KR101462201B1 (en) 2014-07-23 2014-11-21 (주)대한하이텍건설 Bridge Joint Structure Comprising Elastic Mortar
KR101512966B1 (en) * 2014-11-13 2015-04-21 (주)코메스코리아 Elastomeric Mortar Composition and Constructing Methods Using Thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101156460B1 (en) 2011-10-28 2012-06-18 (주)에이엠지그룹건축사사무소 This construction method using mortar and elastic
KR101252447B1 (en) * 2012-10-24 2013-04-16 주식회사 제니스코리아 Quick hardening environment-friendly flooring material and constructing methods using thereof
KR101347793B1 (en) 2013-07-30 2014-01-06 강창구 Environment-friendly quick-hardening concrete composition for repairing using seaweeds and constructing methods using thereof
KR101462201B1 (en) 2014-07-23 2014-11-21 (주)대한하이텍건설 Bridge Joint Structure Comprising Elastic Mortar
KR101512966B1 (en) * 2014-11-13 2015-04-21 (주)코메스코리아 Elastomeric Mortar Composition and Constructing Methods Using Thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101971100B1 (en) 2018-08-10 2019-04-24 주식회사 광림티엔아이 Low temperature curable polyurea coating composition and method of construction using the same
KR101964590B1 (en) 2018-09-05 2019-04-04 주식회사 광림티엔아이 Polyurea resin coating composition and method for repairing and reinforcing non-structure using the same
KR101953831B1 (en) * 2018-09-06 2019-03-04 김경구 Durable Room Temperature-Cured Elastic Injection Material Composition For Expansion Joint Of Structure And Method For Constructing The Joint Using The Composition
KR102100959B1 (en) * 2019-06-27 2020-04-21 우산건설 주식회사 Modified concrete composition and Manufacturing method thereof

Also Published As

Publication number Publication date
KR20170015593A (en) 2017-02-09

Similar Documents

Publication Publication Date Title
KR101790990B1 (en) Elastomeric Concrete Composition and Constructing Methods Using Thereof
KR101776893B1 (en) A Eco-friendly Waterproofing Treatment Composition for Road and Waterproofing Methods using Thereof
KR101710300B1 (en) Method of repairing bridge surface pavement using ultra rapid hardening latex modified concrete with enhanced freezing and thawing durability, salt damage resistance and crack resistance
KR101811276B1 (en) Environment-friendly Waterproofing Concrete Composition for Construction using Seaweed Powders and Constructing Methods Using Thereof
KR101347793B1 (en) Environment-friendly quick-hardening concrete composition for repairing using seaweeds and constructing methods using thereof
KR101624950B1 (en) Mortar composition for repairing and reinforcing concrete structures, and method of repairing and reinforcing concrete structures using the same
KR101665945B1 (en) Mortar composition of ultra rapid hardening type for repairing and reinforcing with enhanced freezing and thawing durability, salt damage resistance and crack resistance, and method of repairing and reinforcing deteriorated part of road, runway and L-type side gutter using the same
KR101133782B1 (en) Concrete structure with strengthened durability by means of novel polymer composite material and crack reparing material comprising carbon nanotubes and finishing method for the same
KR100854987B1 (en) High speed hardening cement composition for water-proof and paving method thereof
KR101676296B1 (en) High early strength concrete composition modified with nano hardend silica and phenylethene-ethyl propenoate polymer synthetic latex, and repairing method for concrete pavement using the same
KR101663690B1 (en) Mortar composition for repairing and reinforcing road gutter and small-damaged part of road, and method of repairing and reinforcing road gutter and small-damaged part of road using the same
KR101625411B1 (en) Mortar composition for repairing and reinforcing concrete structures, and method of repairing and reinforcing concrete structures using the same
KR101859643B1 (en) Mastic Asphalt Concrete Composition Comprising Crum Rubber Modifier and Constructing Methods Using Thereof
KR101630269B1 (en) Mortar composition for repairing and reinforcing concrete structures, and method of repairing and reinforcing concrete structures using the same
KR101056825B1 (en) Mortar composition using waterbone binder and repairing-reinforcing method for concrete structure
KR100916306B1 (en) The concrete surface rehabilitation method using carboxyleted stylene butadiene syntetic latex modified mortar
KR101621199B1 (en) Mortar composition for repairing and reinforcing concrete structure of road gutter and small-damaged part of road, and method of repairing and reinforcing concrete structure of road gutter and small-damaged part of road using the same
KR102153401B1 (en) Heat-resistant latex modified super hard concrete and bridge concrete paving method using the same
KR101700133B1 (en) Mortar composition for repairing and reinforcing concrete structures, and method of repairing and reinforcing concrete structures using the same
KR101068958B1 (en) Flooring composition using eco-friendly recycled aggregate and construction method using the same
KR101931321B1 (en) High early strength repair materials compositions for concrete bridge deck and repairing method for concrete bridge deck using that
KR101670413B1 (en) Quick-hardening Concrete Composition Using Seaweeds and Constructing Methods Using Thereof
KR100922137B1 (en) High speed hardening road surface reforming compositoin and method thereof
KR101670410B1 (en) Quick-hardening Blended Cement Composition Using Seaweeds and Constructing Methods Using Thereof
KR101586488B1 (en) Inorganic waterstop composition with water-soluble inflation and quick setting

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant