KR102043397B1 - Imptoved Durability Eco-friendly Quick-hardening Concrete Composition for Decreasing Fine Dust, Minute Plastic and Carbon Dioxide Using Seaweed and Constructing Methods Using Thereof - Google Patents

Abstract

The present invention relates to an environmentally-friendly ultra-rapid hardening pavement concrete composition with reduced production of fine dust, microplastic, and carbon dioxide and increased durability by using seaweed, and a construction method using the same. According to the present invention, the environmentally-friendly ultra-rapid hardening pavement concrete composition comprises 20 to 150 parts by weight of cement, 10 to 1,000 parts by weight of aggregate, 10 to 40 parts by weight of calcium sulfoaluminate, 2 to 10 parts by weight of metakaolin, 10 to 70 parts by weight of fly ash, 20 to 60 parts by weight of blast furnace slag, 3 to 15 parts by weight of methylmethacrylate, 1 to 10 parts by weight of a retarder, 1 to 10 parts by weight of an air entraining agent, and 0.5 to 5 parts by weight of a defoamer with respect to 100 parts by weight of seaweed. Accordingly, carbon dioxide is absorbed during curing of concrete without generating fine dust and microplastic, thereby providing an effect of reducing generation of greenhouse gas. Moreover, the composition is quickly hardened while satisfying required physical properties such as durability, compressive strength and the like, thereby providing an effect of reducing a construction period.

Description

Environment-friendly super hard pavement concrete composition for reducing fine dust, fine plastics and carbon dioxide using seaweed and improving its durability and construction method using the same {Imptoved Durability Eco-friendly Quick-hardening Concrete Composition for Decreasing Fine Dust, Minute Plastic and Carbon Dioxide Using Seaweed and Constructing Methods Using Thereof}

The present invention relates to an environment-friendly super hard pavement concrete composition and a construction method using the same, which reduces fine dust, fine plastics and carbon dioxide by using seaweed, and improves durability, and more particularly, scattering dust and tires generated by driving a car. Eco-friendly super hard pavement concrete composition that minimizes the occurrence of dust and fine plastics, which are binders for road pavement, and reduces fine dust, fine plastics and carbon dioxide by using seaweeds to absorb carbon dioxide during concrete curing and road operation. It relates to a construction method using the same.

In general, as the industrial society develops, the utilization rate of vehicles increases, and accordingly, safety facilities for the construction of many bridges and roads and accident prevention are installed for smooth communication and safety of traffic.

In particular, the bridge and road paving method used in the construction of the road is mainly made of asphalt pavement having a base layer and a surface layer having a thickness of 2 to 10cm or cement concrete pavement consisting of a roadbed and concrete plates thereon.

On the other hand, in general, a bridge refers to an expensive structure that is constructed to pass through the upper part of a river, a coast, a road, and the like, and the surface of the bridge is paved to allow a vehicle to pass smoothly. Form a packaging layer.

Such cross-section pavement is a part that directly transmits traffic load, and should have a suitable strength and crack resistance, as well as being exposed to moisture such as rainwater, and thus waterproof performance is required. Low chlorine ion permeability is required to prevent this corrosion.

As such a pavement paving method, a conventional concrete paving method or ascon paving method has been known and widely used.

Here, the asphalt concrete used for paving the asphalt concrete is a name for reducing asphalt concrete, also referred to as a paving heating asphalt mixture (KS F 2349 standard), HMA (hot mix asphalt) and the like.

General ascon is prepared by mixing asphalt binder (asphalt binder), coarse aggregate (Aggregate), fine aggregate (Sand) and filler (filler) at a high temperature, and is widely used as a road paving material.

In particular, ascon road paving method using asphalt concrete has been mainly implemented as a general road paving method.

However, the above-mentioned Ascon pavement may cause severe driving problems along the running tracks before 5 years of construction, or cause serious driving problems. Even if there is no plastic deformation problem, the packaging material gradually ages and eventually becomes aging. There is a problem that should be periodically maintained by generating a severe crack, as an example of such a repair method, Korean Patent Registration No. 0880030, asphalt cement 60 ~ 80% by weight; 15 to 35% by weight of vegetable oil; and an ascon composition for road pavement emergency repair comprising a binder comprising aliphatic polyamides (Aliphatic polyamides) is disclosed.

Furthermore, in order to increase the physical properties of concrete or asphalt concrete used for the pavement of the road, various polymer resins may be used as modifiers and / or waste tires.

However, in the conventional pavement, the surface of the road is worn out while driving, and dust scattering such as tire dust is generated, and styrene-butadiene rubber, polypropene latex, styrene-butadiene styrene, styrene isoprene styrene, and crushing are used as binders for road pavement. Microplastics are generated due to exposure of rubber modifiers and waste tires.

In addition, the concrete composition used for the road paving is used for the purpose of improving the properties of the cement to improve the physical properties, various mixtures are used in the case of such a mixture to emit carbon dioxide has an adverse effect on the global environment.

On the other hand, various methods have been applied to research and development of durable cross-linking and concrete pavement materials such as styrene-butadiene copolymerized latex in general concrete, resistance to freezing thawing and scaling, and prevention of neutralization by polymer cement complex hydrate. In addition, the road construction materials that use cemented carbide are showing the line because maintenance works requiring traffic blocking of roads cause traffic jams along with road congestion. In particular, fast-moving concrete is used because the traffic must be opened within 3 to 5 hours after the start of construction, but the freeze-thawing resistance, durability, etc. are weaker than general Portland cement due to the properties of superhard cement. There is a problem that often occurs.

The present invention was created to solve the above problems, by constructing a packaging concrete composition using seaweed, which is a natural plant, by generating carbon dioxide during concrete curing without generating fine dust and fine plastics to generate greenhouse gases It is an object of the present invention to provide an environmentally friendly super hard pavement concrete composition.

The present invention

Based on 100 parts by weight of seaweed,

20 to 150 parts by weight of cement;

10 to 1,000 parts by weight of aggregate;

Calcium sulfoaluminate 10 to 40 parts by weight;

2-10 parts by weight of metakaolin;

10 to 70 parts by weight of fly ash;

Blast furnace slag 20 to 60 parts by weight;

3 to 15 parts by weight of methyl methacrylate;

Retardant 1 to 10 parts by weight;

1 to 10 parts by weight of an air entrainer;

Antifoam 0.5-5 parts by weight; And

It provides an environmentally friendly super hard pavement concrete composition comprising 0.01 to 5 parts by weight of a high performance water reducing agent.

In addition, the present invention to remove the foreign matter on the construction surface to remove the foreign matter-cleaning step;

20 to 150 parts by weight of cement, 10 to 1,000 parts by weight of aggregate, 10 to 40 parts by weight of calcium sulfoaluminate, 2 to 10 parts by weight of metakaolin, based on 100 parts by weight of seaweed on the surface of the foreign material removal-cleaning step, 10 to 70 parts by weight of fly ash, 20 to 60 parts by weight of blast furnace slag, 3 to 15 parts by weight of methyl methacrylate, 1 to 10 parts by weight of retardant, 1 to 10 parts by weight of air entrainer, 0.5 to 5 parts by weight of antifoaming agent, And a pouring step of mixing the environment-friendly super hard pavement concrete composition including 0.01-5 parts by weight of a high-performance water reducing agent with water and then pouring. And

It provides a construction method of eco-friendly cemented carbide pavement concrete composition comprising a curing step of curing the pavement concrete composition after the pouring step.

Pavement concrete composition according to the present invention while absorbing carbon dioxide during curing of concrete without generating fine dust and fine plastic, while reducing the generation of greenhouse gases, while satisfying the properties such as durability, compressive strength required by the concrete composition There is an effect that can be cured quickly to shorten the air.

Hereinafter, the present invention will be described in detail.

In one aspect, the present invention, based on 100 parts by weight of seaweed, 20 to 150 parts by weight of cement; 10 to 1,000 parts by weight of aggregate; Calcium sulfoaluminate 10 to 40 parts by weight; 2-10 parts by weight of metakaolin; 10 to 70 parts by weight of fly ash; Blast furnace slag 20 to 60 parts by weight; 3 to 15 parts by weight of methyl methacrylate; Retardant 1 to 10 parts by weight; 1 to 10 parts by weight of an air entrainer; Antifoam 0.5-5 parts by weight; And it provides an environmentally friendly super hard boulder packaging concrete composition comprising 0.01 to 5 parts by weight of a high performance water reducing agent.

In another aspect, the present invention is a foreign material removal-cleaning step of cleaning after removing the foreign matter on the construction surface; 20 to 150 parts by weight of cement, 10 to 1,000 parts by weight of aggregate, 10 to 40 parts by weight of calcium sulfoaluminate, 2 to 10 parts by weight of metakaolin, based on 100 parts by weight of seaweed on the surface of the foreign material removal-cleaning step, 10 to 70 parts by weight of fly ash, 20 to 60 parts by weight of blast furnace slag, 3 to 15 parts by weight of methyl methacrylate, 1 to 10 parts by weight of retardant, 1 to 10 parts by weight of air entrainer, 0.5 to 5 parts by weight of antifoaming agent, And a pouring step of mixing the environment-friendly super hard pavement concrete composition including 0.01-5 parts by weight of a high-performance water reducing agent with water and then pouring. And it provides a construction method of environmentally friendly super hard pavement concrete composition comprising a curing step of curing the packaging concrete composition after the pouring step is completed.

The seaweed according to the present invention is contained in an eco-friendly super hard pavement concrete composition which reduces the fine dust, fine plastics and / or carbon dioxide and improves the durability by using the packaging concrete composition, in particular, the algae, and drying and curing the packaging concrete composition. Shrinkage is provided to overcome cracking or flexing and impact strength due to weak shrinkage.

In addition, the seaweed according to the present invention improves abrasion resistance of the road structure formed of pavement concrete composition, the generation of scattering dust due to the wear of the road surface is lower than the other additives, and because it is a natural plant fine plastics due to the use of chemicals There is no emission of harmful substances, and it acts as a blue carbon absorbing carbon dioxide when curing concrete, and also has a carbon dioxide absorption effect when operating the road.

Moreover, the seaweed according to the present invention has a large amount of sodium alginate, a natural thickener, so that sodium alginate is dissolved in the blended water, thereby improving the bonding strength of concrete products due to the formation of a high viscosity aqueous solution and thin film, thereby improving watertightness, ion permeation resistance, and water resistance. Can be promoted.

In general, the latex mixed modified concrete, styrene butadiene rubber (SBR), styrene isoprene styrene (SIS), crushed rubber modifier (CRM), waste tires, etc. used additives, there was a problem that harmful substances occur when the road surface wear .

Thus, the algae according to the present invention performs the same function as the latex used in the Latex Modified Concrete (LMC) method, there is no harmful substance generated, and the algae powder independently acts during the concrete placing work, so the fluidity of concrete In the process of hydration, seaweed powder particle film is formed around cement hydrate to increase adhesion, and after hardening, it is possible to suppress the occurrence of cracking as the micropores in concrete are filled by seaweed. Do it.

In addition, the seaweed promotes the bonding between the components constituting the environment-friendly fast-hard concrete composition to improve the compressive strength, flexural strength, adhesion strength, dry shrinkage, thermal expansion coefficient, elastic modulus, freeze-thawing resistance, etc. To prevent cracking.

Here, about 8,000 species of seaweeds in the world and about 1,000 species inhabit the waters of Korea. About 100 of these species are widely known, and in particular, about 20 species, such as seaweed and kelp, are produced in large quantities. Although it can be used, it is preferable to use at least one selected from green algae, brown algae, red algae, or these as a preferred seaweed.

As a typical seaweed, the green algae may be thorny seaweed, hole blue cheontae, haecam, blue sea, hole brown seaweed, auditory, bead hearing, jade, salt weekend, etc., but are not limited thereto. , Horseshoe horses, horses, horses, shellfish, seaweed, sea bream, gompi, rhubarb, iron seacoast, cousin, mackerel, hoesaeng hat mabu, jichungyi, 톳 and the like can be used, but is not limited to the red alga Laver, woodfish, light starfish, kotoni, dog gambling, boulder, ox radish, buckwheat, grasshopper, stalk, jindubal, gambling gourd, spiny radish, silk grass, cuttlefish, stone star, stone tree, jinari But it is not limited thereto.

Particularly, among the algae, perforated greens, stalks, hat stalks, wood starfish, greens and the like are known to have a large effect on reducing greenhouse gases by absorbing carbon dioxide.

The algae according to the present invention is recommended to use those prepared in powder form after drying the above seaweeds.

Here, the method of powdering the dried algae may be used as long as it is a conventional method in the art, but it is recommended to powder by the ball-mill method.

The content of the seaweeds other than the seaweeds constituting the eco-friendly cemented carbide pavement concrete composition, which reduces fine dust, fine plastics and carbon dioxide and improves durability by using the packed concrete composition, specifically seaweed, is based on 100 parts by weight of seaweed. It is done.

The cement according to the present invention is not particularly limited as long as it is a cement commonly used in the art, and preferably, special port such as general portland cement or blast furnace slag cement, ultra fine powder cement, cemented carbide etc. may be used.

It is preferable that the cement is preferably 3,200 to 6,500 cm ² / g, and the amount of the cement used is 20 to 150 parts by weight based on 100 parts by weight of seaweed.

Aggregate according to the present invention is a construction mineral material that can be aggregated by constituting components of the concrete composition, for example, cement, calcium sulfoaluminate, metakaolin, fly ash, blast furnace slag, etc. Stable.

Aggregate refers to sand, gravel, basalt, stones, basalt, vermiculite and the like.

Specifically, the aggregate may further include basic veins having a particle diameter of about 25 mm and an absorption rate of about 0.7% and / or bauxite having a particle size of about 5 mm and an absorption rate of 5.40%.

According to the size of the aggregate is less than 0.074mm or less than 4.76mm is called fine aggregate, and more than 4.76mm is called coarse aggregate. The amount of the preferred aggregate is preferably 10 to 1,000 parts by weight based on 100 parts by weight of seaweed, and the mixing amount of fine aggregate and coarse aggregate included in the aggregate is not particularly limited and may be appropriately adjusted as necessary.

Calcium Sulfo Aluminate according to the present invention is a material for imparting shrinkage compensation, high strength, for example, high compressive strength and flexural strength, and super speed diameter, and any calcium sulfoaluminate having such a purpose may be used. Also, it is recommended that the amount is 10 to 40 parts by weight based on 100 parts by weight of seaweed.

Here, when the amount of the calcium sulfo aluminate used is less than 10 parts by weight, the curing rate may decrease, and when the amount is 40 parts by weight or more, a problem may occur in which the volume is expanded.

On the other hand, the calcium sulfoaluminate reacts with water in an instant to generate ettringite hydrate, thereby obtaining the compressive strength of the cement within a few minutes to several hours.

At this time, ultra-fine amorphous calcium sulfoaluminate may be used for a faster hydration reaction.

The fine powder of the ultrafine amorphous calcium sulfoaluminate used to increase the hydration reactivity is preferably about 5,000 to 8,000 cm 2 / g.

Metakaolin according to the present invention is preferably used in the conventional metakaolin in the art, the amount is preferably 2 to 10 parts by weight based on 100 parts by weight of seaweed.

Here, the metakaolin has a rapid reaction rate in the early stage of hydration to increase the initial strength, in the long-term by reacting with Ca (OH) ₂ generated during the cement hydration process to produce CASH (Calcium aluminum silicate hydroxide) hydrate, Compared to concrete manufactured using general cement, the pores are more compact to increase the strength.

When the fly ash according to the present invention is used in an appropriate amount mixed with the packaging concrete composition, the workability is improved, the heat of curing is alleviated, and the long-term strength and water tightness can be improved.

Accordingly, the fly ash is not particularly limited as long as it is a fly ash used for the above-mentioned purposes, and preferably, coal ash collected by a dust collector from a flue gas of a boiler for burning pulverized coal is used.

The particle size of the fly ash is about the same as cement, and alumina and silica are main components.

In a particular embodiment, the fly ash according to the present invention may use pulverized fly ash, wherein the pulverized fly ash provides improved high strength and / or fluidity than using an unpulverized fly ash. .

At this time, the finely pulverized fly ash powder degree is 3,000 to 3,800 cm ² / g, preferably 3,000 to 3,800 cm ² / g, more preferably less than 3,700 cm ² / g, the density is 1.5 to 2.8 g / cm ³ , preferably about 2.2 g / cm ³ .

The amount of the preferred fly ash is preferably 10 to 70 parts by weight based on 100 parts by weight of seaweed.

Blast furnace slag according to the present invention is to improve the fluidity and to have a sufficient compressive strength and bending strength while eliminating the elution of harmful substances, may be any conventional blast furnace slag in the art having this purpose. However, like is supposed fineness is 3,700 to 4,000cm ² / g, preferably about 3,850cm ² / g, a density of 2.9 to 3.5g / cm ^3, preferably from about 3.1g / cm ³ of blast furnace slag It is good to use.

The amount of the preferred blast furnace slag is not particularly limited, but is preferably 20 to 60 parts by weight based on 100 parts by weight of seaweed.

Methyl methacrylate (MMA: Methyl Meth Acrylate) according to the present invention is intended to improve the physical and chemical safety of the construction of the packaging concrete composition, harmless to the human body, excellent environmental friendliness, excellent binder properties and mechanical properties By maintaining this, it is possible to significantly reduce cracks and dropouts caused by external impact or environment.

The methyl methacrylate is methyl meth obtained by mixing 49 to 70 wt% of a low viscosity methyl methacrylate resin having a viscosity of 10 to 1,000 cps and 20 to 50 wt% of a high viscosity methyl methacrylate having a viscosity of 2,000 to 20,000 cps. Modified methylmethacrylate may be used in which the acrylate mixture is mixed with 1 to 10% by weight of one or more mixtures selected from SIS (stylene isoprene stylene), SBR (stylene butadiene rubber) and SBS (stylene butadiene stylene).

In this case, when the content of the SIS, SBR and / or SBS is less than 1% by weight, cracks may occur due to a decrease in impact resistance, and when the content of the SIS, SBR and / or SBS is greater than 10% by weight, the work may be due to an increase in the viscosity of the modified methyl methacrylate resin. Sex problems can occur.

The amount of the preferred methyl methacrylate is preferably 3 to 15 parts by weight based on 100 parts by weight of seaweed.

The retarder according to the present invention is for controlling the working time and / or the rate of strength expression, and may be used as long as it is commonly used in the art for this purpose, but preferably tartaric acid, citric acid, gluconic acid It is preferable to use at least one or more mixtures selected from or as carboxylic acids or salts thereof, and the amount thereof is preferably 1 to 10 parts by weight based on 100 parts by weight of seaweed.

Air entraining agent (air entraining agent) according to the present invention is an admixture containing an anionic surfactant as a main component, easy to control the amount of air and economical, improves the durability against concrete freeze-thaw and workability of concrete. These air entrainers have no side effects when used in combination with other admixtures. Thus, the air entraining agent may be employed without being limited to conventional air entrainers such as Alky benzene Sulfonate Fe and / or olefin sufonate Fe applied in the art. Can be.

The amount of the preferred air entraining agent is not particularly limited, but is preferably 1 to 10 parts by weight based on 100 parts by weight of seaweed.

Defoamer according to the present invention is to reduce the increase in the amount of air due to the generation of entrained air.

The preferred amount of antifoaming agent is 0.5 to 5 parts by weight based on 100 parts by weight of seaweed.

Preferred antifoaming agents include mineral oil-based antifoaming agents such as kerosene, paraffin, mineral oil, ethanol synthetic oil, etc., oil-based antifoaming agents such as animal and vegetable oils, sesame oil, castor oil and their alkylene oxide adducts, oleic acid, stearic acid and their alkylene oxides. Fatty acid-based antifoaming agent, polyoxyalkylenes, (poly) oxyalkyl ether, such as fatty acid antifoaming agent, glycerin monolicinolate, alkenyl amber acid fluid, sorbitol monolaurate, sorbitol trioleate, natural wax, etc. Oxyalkylene antifoaming agents, such as acetylene ethers, (poly) oxyalkylene alkyl phosphate esters, (poly) oxyalkylene alkylamines, (poly) oxyalkylene amides, octyl alcohol, hexadecyl alcohol, acetylene alcohol, Alcoholic antifoaming agents such as glycols, Amide antifoaming agents such as acrylate polyamine, tributyl phosphate, nat Octyl phosphoric acid ester base defoaming agents, such as phosphate, aluminum stearate, calcium oleate (polyorganosiloxanes such as dimethyl polysiloxane), metal soap-based defoaming agent, dimethyl silicone oil, silicone, pay seut, silicone emulsions, organic modified polysiloxanes such as. Any one or more selected from the group consisting of silicone antifoaming agents such as fluorosilicone oil may be used, but is not limited thereto.

The high performance water reducing agent according to the present invention is a admixture used to even out the small air bubbles in the concrete composition when constructing the concrete composition, and has a good foaming property, thereby generating small bubbles evenly in the composition. Improve durability, etc.

In particular, the water reducing agent is added to the premixed base concrete composition to make it more gentle by stirring it, and is used for the purpose of improving the constructability of the composition without degrading the quality of the concrete composition.

In addition, the water reducing agent has a secondary effect such as to improve the fluidity of the concrete composition to facilitate the pouring operation, to lower the thermal conductivity of the hard concrete, to improve the water-tightness.

At this time, the water-reducing ratio of the water reducing agent used in the concrete composition is generally about 10 to 15%, of which the water reduction ratio is 20 to 30%.

Preferred high performance sensitizers are preferably naphthalene type, melamine type, polycarboxylic acid type, amino sulfonic acid type sensitizers or mixtures thereof, and the content thereof is not particularly limited and may be appropriately adjusted as necessary.

At this time, typical examples of the naphthalene-type sensitizer are modified lignin, alkylarylsulfonic acid and active sustained polymers, polyalkylylsulfonic acid salts and reactive polymers, alkylarylsulfonate polycondensates, polysulfonic acid group-containing polycyclic polymers, alkylnaphthalenesulfonic acid salts, alkylaryls And sulfonate-modified lignin co-condensates and modified lignin, lignin derivatives and alkylarylsulfonates or at least one selected from these.

Typical examples of the melamine type water reducing agent include modified methyl melamine condensate, a water-soluble special polymer compound, a sulfonated melamine high condensate, or one or more mixtures thereof.

Typical examples of the polycarboxylic acid type reducing agent include copolymers or salts thereof containing unsaturated carboxylic acid monomers as a single component, such as poly (alkylene glycol) monoacrylate, poly (alkylene glycol) monomethacrylate, maleic anhydride and Copolymers of styrene, copolymers of acrylates or methacrylates, copolymers derived from monomers copolymerizable with these monomers, and the like.

Representative examples of the amino sulfonic acid type reducing agent include aromatic aminosulfonic acid polymer compounds, aromatic polymer condensates and lignin sulfonic acid derivatives, or at least one or more mixtures thereof selected from them.

In addition, a preferred high performance water reducing agent is a naphthalene type high performance water reducing agent alone or a mixed composition consisting of 80 to 95% by weight of a naphthalene-based high performance water reducing agent, 5 to 20% by weight of a polycarboxylic acid type high performance water reducing agent.

The amount of the high performance water reducing agent is preferably such that the total air amount in the solidifying agent is about 4 to 6% by volume. Too much use is not only economical, but also causes various obstacles such as a decrease in the compressive strength and a decrease in the bond strength with the rebar.

The amount of the preferred high performance water reducing agent is recommended to use 0.01 to 5 parts by weight based on 100 parts by weight of seaweed.

Eco-friendly cemented carbide pavement concrete composition according to the present invention, eco-friendly cemented carbide pavement concrete composition that specifically reduces fine dust, fine plastics and carbon dioxide by using seaweed and improves durability is one of the additives according to the following specific embodiments Or it may further comprise one or more.

As a specific aspect, the eco-friendly cemented carbide pavement concrete composition according to the present invention, in particular, the eco-friendly cemented carbide pavement concrete composition, which reduces fine dust, fine plastics and carbon dioxide by using seaweed and improves durability, is used when the composition is applied to concrete production. Absorbs water to improve workability, thereby reducing the number of units in the concrete and may further include an absorbent polymer to be excellent in increasing the strength.

As the water absorbent polymer, any one or more selected from polyacrylate, a derivative thereof, and a polyethylene oxide derivative may be used, and the amount of the absorbent polymer may be 5 to 30 parts by weight based on 100 parts by weight of seaweed.

In another specific aspect, the environmentally friendly cemented carbide packaged concrete composition according to the present invention may further comprise magnesium silicate in an amount of 0.1 to 3 parts by weight based on 100 parts by weight of seaweed to extend the life of the composition.

Since the magnesium silicate has excellent chemical resistance, chemical resistance and weathering resistance, the life of the filler composition is extended.

In another specific embodiment, the environmentally friendly cemented carbide packaged concrete composition according to the present invention may further include sodium bentonite in an amount of 1 to 10 parts by weight based on 100 parts by weight of seaweed in order to densify voids, prevent leakage, and improve strength. .

The sodium bentonite absorbs a large amount of water and expands to several times its original volume and becomes a gel-like state to densely fill the pores of the composition, thereby preventing leakage and improving strength, thereby contributing to crack prevention.

In another specific embodiment, the eco-friendly cemented carbide packaged concrete composition according to the present invention may further include 1 to 5 parts by weight of sodium bicarbonate, based on 100 parts by weight of seaweed, in order to suppress the rapid reaction when mixing the composition to improve the stability of the reaction. Can be.

In another specific embodiment, the environmentally friendly cemented carbide packaged concrete composition according to the present invention may further include 1 to 5 parts by weight of polyvinylidene fluoride resin based on 100 parts by weight of seaweed to prevent cohesion of the composition and separation of materials. have.

In another specific embodiment, the eco-friendly cemented carbide packaged concrete composition according to the present invention is a Welan gum 0.1 to 3 based on 100 parts by weight of welan gum in order to prevent the separation of the material according to the specific gravity difference between the components of the composition The weight part may further include.

In another specific aspect, the eco-friendly cemented carbide packaged concrete composition according to the present invention is based on 100 parts by weight of sodium oleate based on 100 parts by weight of seaweed in order to not only increase workability and quality stability, but also increase interfacial adhesion to the surface to be bonded. It may include more wealth.

In another specific embodiment, the eco-friendly cemented carbide packaged concrete composition according to the present invention promotes the dissolution of the composition quickly to increase the initial heat of reaction to accelerate the coagulation hardening to ensure the initial strength by using potassium phosphate based on 100 parts by weight of seaweed 1 to 5 parts by weight may be further included, if it exceeds 5 parts by weight based on 100 parts by weight of seaweed may shrink due to the fastening performance, cracking may occur, if less than 1 part by weight hydrolysis rate is lowered and the strength is poor not.

In another specific embodiment, the environmentally friendly cemented carbide packaged concrete composition according to the present invention is 1 to 6 parts by weight of butyl glycidyl ether based on 100 parts by weight of seaweed to adjust the viscosity of the composition and improve adhesion. When the amount is less than 1 part by weight based on 100 parts by weight of seaweed, the effect of viscosity control and adhesion improvement is insignificant, and when it exceeds 6 parts by weight, curing is delayed and surface hardness is lowered. There is this.

In another embodiment, the environmentally friendly cemented carbide packaged concrete composition according to the present invention may further contain ammonium nonylphenol ether sulfate in an amount of 1 to 5 parts by weight based on 100 parts by weight of seaweed in order to improve the filling and durability of the composition. It may include.

In another specific embodiment, the environmentally friendly superhard pavement concrete composition according to the present invention is lithium carbonate (Li ₂ CO ₃ ) 0.1 to 100 parts by weight based on 100 parts by weight of algae to promote curing of the composition and to improve compressive strength and flexural strength. It may further comprise 2 parts by weight.

In another specific embodiment, the environmentally friendly cemented carbide packaged concrete composition according to the present invention may further include 1 to 10 parts by weight of acrylonitrile based on 100 parts by weight of seaweed in order to improve durability and alkali resistance of the composition. When less than 1 part by weight based on 100 parts by weight of seaweed, the effect of improving durability and alkali resistance is insignificant, and when it exceeds 10 parts by weight, the viscosity may be increased, thereby reducing workability.

In another specific embodiment, the environmentally friendly cemented carbide packaged concrete composition according to the present invention may further include calcium pyrophosphate in order to maintain the initial working performance of the composition and improve its strength, the amount of which is used based on 100 parts by weight of seaweed. To 2 parts by weight is good.

In another specific embodiment, the environmentally friendly cemented carbide packaged concrete composition according to the present invention may further include 1 to 10 parts by weight of calcium nitrite based on 100 parts by weight of seaweed in order to suppress corrosion and improve dispersibility of the composition.

In another specific embodiment, the eco-friendly cemented carbide packaged concrete composition according to the present invention is 1 to 5 parts by weight of lithium hydroxide based on 100 parts by weight of seaweed in order to improve curing reactivity by preventing curing of the eco-friendly cemented carbide packaged concrete composition and organic matter. It may further include.

In another specific embodiment, the environmentally friendly cemented carbide packaged concrete composition according to the present invention may further comprise tetrafluoroethylene in an amount of 1 to 10 parts by weight based on 100 parts by weight of seaweed in order to improve the elongation and strength of the composition. If it is less than 1 part by weight based on 100 parts by weight of the seaweed, the effect of improving elongation and strength is insignificant, and if it exceeds 10 parts by weight, it is not economical.

In another specific embodiment, the environmentally friendly cemented carbide packaged concrete composition according to the present invention may further include 1 to 10 parts by weight of allite (Alite, C3S) based on 100 parts by weight of seaweed to increase the initial strength of the composition.

Here, the allite means a mixture such as 3CaOSiO ₂ , which promotes a hydration reaction to reach the highest degree of supersaturation of calcium hydroxide (Ca (OH) ₂ ) in the solution, and the precipitation of the hydration product becomes very active. The strength is increased.

In another specific embodiment, the environmentally friendly cemented carbide packaged concrete composition according to the present invention may further include 2 to 8 parts by weight of kaolinite based on 100 parts by weight of seaweed to increase the bonding strength of the composition.

Here, the kaolinite is mainly used as a material of porcelain due to its excellent absorption and viscosity as the main component of kaolin.

In addition, the kaolinite is relatively fine, the hardness is 2 to 2.5 so that when the composition is applied to the ground and / or reinforcement surface penetrates between the components of the composition to solidify the strength of the ground and / or reinforcement surface further Strengthen.

In another specific embodiment, the eco-friendly cemented carbide packaged concrete composition according to the present invention further comprises 0.1 to 3 parts by weight of hypochlorite based on 100 parts by weight of seaweed in order to fill the pores of the composition to prevent voids during construction. Can be.

In another specific embodiment, the environmentally friendly cemented carbide packaged concrete composition according to the present invention is based on 100 parts by weight of sulfoxypolyethylene glycol allyl ether based on 100 parts by weight of seaweed in order to facilitate blending between components constituting the composition and to improve stability of the composition. It may be further included as 10 to 10, if the content is less than 1 part by weight based on 100 parts by weight of seaweed is not easy to mix the composition, if it exceeds 10 parts by weight is not good because the stability is excessively reduced.

In another specific embodiment, in order to prevent ionization of the eco-friendly cemented carbide packaged concrete composition composition according to the present invention may further comprise 1 to 10 parts by weight of sodium hexametaphosphate based on 100 parts by weight of seaweed.

As another specific aspect, the eco-friendly cemented carbide packaged concrete composition according to the present invention may further comprise 1 to 5 parts by weight of sorbitan monooleic acid ester based on 100 parts by weight of seaweed to improve the strength and water resistance of the composition.

As another specific aspect, the environmentally friendly super hard pavement concrete composition according to the present invention may further include 1 to 3 parts by weight of phenylpropanolamine based on 100 parts by weight of seaweed to improve alkali ion promotion.

As another specific aspect, the eco-friendly cemented carbide packaged concrete composition according to the present invention may further comprise 1 to 5 parts by weight of polysilicon sludge based on 100 parts by weight of seaweed to improve compressive strength and permeability.

Here, the polysilicon sludge has a light gray color, is discharged at a high moisture content of 62%, low density and light, and has a fine powder form of 7,122 cm 3 / g. It is composed of SiO ₂ and CaO and contains trace amounts of alkali components K ₂ O and Na ₂ O.

In addition, after the polysilicon sludge powder is dried at 60 ° C. for at least 24 hours, the obtained crystal phase is composed of CaCO ₃ and contains a small amount of NaCl, a compound of Na ₂ O and Cl.

In another specific embodiment, the eco-friendly cemented carbide packaged concrete composition according to the present invention may further include 15 to 30 parts by weight of waste glass powder based on 100 parts by weight of seaweed as a substitute for reducing the amount of cement from which carbon dioxide is emitted during manufacture. Can be.

As another specific aspect, the eco-friendly cemented carbide pavement concrete composition according to the present invention may further comprise 1 to 10 parts by weight of potassium sorbate, based on 100 parts by weight of seaweed, to suppress the occurrence of mold that may occur on the concrete surface. .

In another specific embodiment, the eco-friendly cemented carbide packaged concrete composition according to the present invention contains 1 to 10 itaconic acid (IA) based on 100 parts by weight of algae to maintain dispersibility and fluidity of the composition for a certain time. The weight part may further include.

In another specific embodiment, the eco-friendly cemented carbide packaged concrete composition according to the present invention is 1 to 10 parts by weight of trizimite based on 100 parts by weight of seaweed in order to enhance the strength of the composition and to improve the water resistance, salt resistance, and freeze thawability. It may further include.

As another specific aspect, the eco-friendly cemented carbide packaged concrete composition according to the present invention may further include 0.1 to 10 parts by weight of peat based on 100 parts by weight of seaweed.

Here, the peat has an excellent water retention of about 10 times due to its unique fiber structure, thereby improving long-term strength expression and durability of the eco-friendly superhard pavement concrete composition.

In another specific embodiment, the environmentally friendly cemented carbide packaged concrete composition according to the present invention may further include 1 to 10 parts by weight of cellulose acetate butyrate based on 100 parts by weight of seaweed to improve the viscosity and water retention of the composition.

In another specific embodiment, the eco-friendly cemented carbide packaged concrete composition according to the present invention may further include 1 to 10 parts by weight of magnesium oxide based on 100 parts by weight of seaweed to prevent the composition from shrinking.

Here, the magnesium oxide may provide an effect of hardly improving the surface to be repaired when water enters the surface to be repaired during construction such as cross-sectional repair.

In another specific embodiment, the environmentally friendly cemented carbide packaged concrete composition according to the present invention may further include 2 to 8 parts by weight of cocobetaine, based on 100 parts by weight of seaweed, to improve plasticity and water retention of the composition, and to prevent cracking and increase strength. have.

The construction method using the eco-friendly cemented carbide pavement concrete composition according to the present invention having the above configuration is not particularly limited as long as it is a method commonly used in the art, but such an example will be described in order to explain the present invention more easily. Is as follows.

First, to remove the foreign matter on the construction surface to remove the foreign matter-cleaning step;

20 to 150 parts by weight of cement, 10 to 1,000 parts by weight of aggregate, 10 to 40 parts by weight of calcium sulfoaluminate, 2 to 10 parts by weight of metakaolin, based on 100 parts by weight of seaweed on the surface of the foreign material removal-cleaning step, 10 to 70 parts by weight of fly ash, 20 to 60 parts by weight of blast furnace slag, 3 to 15 parts by weight of methyl methacrylate, 1 to 10 parts by weight of retardant, 1 to 10 parts by weight of air entrainer, 0.5 to 5 parts by weight of antifoaming agent, And a pouring step of mixing the environment-friendly super hard pavement concrete composition including 0.01-5 parts by weight of a high performance water reducing agent with water; And

After the pouring step is completed, the curing step of curing the concrete composition.

Hereinafter, the present invention will be described in detail through examples. However, the following examples are only for illustrating the present invention in detail and are not intended to limit the scope of the present invention by these examples.

Example 1

100 g of seaweed mixed with 50 g of green seaweed powder and 50 g of kelp powder, 70 g of Portland cement having a powder level of about 5,000 cm ² / g, 200 g of sand, 20 g of ultrafine amorphous calcium sulfoaluminate having a grain density of about 6,000 cm 2 / g, metakaolin 6g, fineness of about 3,600cm ² / g and a density of about 2.2g / cm ³ of milling the fly ash 45g, a density of about 3.1g / cm ³ of blast furnace slag 40g, methyl methacrylate 8g, tartaric acid 3 g, alkyl benzene sulfonic acid iron salt 5 g, paraffin 2 g, and alkyl aryl sulfonic acid 3 g were mixed to prepare a packaged concrete composition.

Example 2

The same procedure as in Example 1 was conducted except that 15 g of polyacrylate was further added.

Example 3

The same procedure as in Example 1 was conducted except that 2 g of magnesium silicate was used.

Example 4

The same procedure as in Example 1 was conducted except that 5 g of sodium bentonite was further added.

Example 5

The same procedure as in Example 1 was conducted except that 2 g of sodium bicarbonate was added.

Example 6

The same procedure as in Example 1 was conducted except that 0.5 g of sodium benzoate was further added.

Example 7

The same procedure as in Example 1 was conducted except that 3 g of polyvinylidene fluoride resin was further added.

Example 8

The same procedure as in Example 1 was conducted except that 2 g of wellan gum was added.

Example 9

The same procedure as in Example 1 was carried out except that 3 g of sodium oleate was further added.

Example 10

The same procedure as in Example 1 was carried out except that 3 g of potassium phosphate was added.

Example 11

The same procedure as in Example 1 was conducted except that 3 g of butylglycidyl ether was further added.

Example 12

The same procedure as in Example 1 was conducted except that 3 g of ammonium noniphenol ether sulfate was further added.

Example 13

The same procedure as in Example 1 was conducted except that 1 g of lithium carbonate was further added.

Example 14

The same procedure as in Example 1 was conducted except that 5 g of acrylonitrile was added.

Example 15

The same procedure as in Example 1 was conducted except that 1 g of calcium pyrophosphate was further added.

Example 16

The same procedure as in Example 1 was conducted except that 5 g of calcium nitrite was further added.

Example 17

The same procedure as in Example 1 was conducted except that 3 g of lithium hydroxide was further added.

Example 18

The same procedure as in Example 1 was conducted except that 5 g of tetrafluoroethylene was further added.

Example 19

The same procedure as in Example 1 was conducted except that 5 g of allite was further added.

Example 20

The same procedure as in Example 1 was carried out except that 4 g of kaolinite was added.

Example 21

The same procedure as in Example 1 was carried out except that 2 g of hypochlorite was further added.

Example 22

The same procedure as in Example 1 was conducted except that 5 g of sulfoxypolyethylene glycol allyl ether was further added.

Example 23

The same procedure as in Example 1 was conducted except that 5 g of sodium hexametaphosphate was further added.

Example 24

The same procedure as in Example 1 was carried out except that 3 g of sorbitan monooleic acid ester was further added.

Example 25

The same procedure as in Example 1 was conducted except that 2 g of phenylpropanolamine was further added.

Example 26

The same procedure as in Example 1 was conducted except that 3 g of polysilicon sludge was added.

Example 27

The same procedure as in Example 1 was carried out except that 20 g of waste glass powder was added.

Example 28

The same procedure as in Example 1 was carried out except that 5 g of potassium sorbate was added.

Example 29

The same procedure as in Example 1 was conducted except that 5 g of itaconic acid was further added.

Example 30

The same procedure as in Example 1 was carried out except that 5 g of trizimite was added.

Example 31

The same procedure as in Example 1 was conducted except that 5 g of peat was added.

Example 32

It carried out in the same manner as in Example 1, but was further carried out with 5g of cellulose acetate butyrate.

Example 33

It carried out in the same manner as in Example 1, but was further carried out with 5g of magnesium oxide.

Example 34

It carried out in the same manner as in Example 1, it was carried out by further containing 5g cocobetaine.

Example 35

The same procedure as in Example 1 was carried out except that all the additives added in Examples 2 to 34 were added.

[Experiment]

Pavement concrete composition prepared according to the embodiment was mixed with water to prepare a concrete layer of 60mm thickness and then measured physical properties, such as curing time, specifically physical curing time, chemical curing time, compressive strength and the like.

 The results are shown in Table 1.

Curing Time (hr) Chemical curing time (day) Compressive strength (MPa) Example 1 26 7 79 Example 2 25 8 79 Example 3 25 8 78 Example 4 26 7 79 Example 5 24 8 78 Example 6 25 7 79 Example 7 23 6 78 Example 8 22 7 76 Example 9 24 6 77 Example 10 25 6 77 Example 11 23 7 76 Example 12 24 8 79 Example 13 26 8 79 Example 14 25 6 80 Example 15 25 7 79 Example 16 25 6 79 Example 17 24 6 75 Example 18 23 6 76 Example 19 25 5 76 Example 20 24 5 77 Example 21 24 8 78 Example 22 23 5 79 Example 23 23 6 77 Example 24 25 5 76 Example 25 24 6 76 Example 26 25 5 78 Example 27 24 7 76 Example 28 23 6 77 Example 29 24 6 78 Example 30 24 6 76 Example 31 25 7 76 Example 32 24 7 78 Example 33 24 6 76 Example 34 23 7 77 Example 35 24 7 78

As shown in Table 1, the pavement concrete composition prepared according to the examples was fast enough to cure in only one day, and the compressive strength was found to sufficiently meet the properties required by the concrete.

As described above, those skilled in the art to which the present invention pertains will understand that the present invention may be implemented in other specific forms without changing the technical spirit or essential features. Therefore, it should 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 all changes or modifications derived from the meaning and scope of the claims to be described later rather than the detailed description and equivalent concepts thereof.

Claims (5)

Based on 100 parts by weight of seaweed,
20 to 150 parts by weight of cement;
10 to 1,000 parts by weight of aggregate;
Calcium sulfoaluminate 10 to 40 parts by weight;
2-10 parts by weight of metakaolin;
10 to 70 parts by weight of fly ash;
Blast furnace slag 20 to 60 parts by weight;
3 to 15 parts by weight of methyl methacrylate;
Retardant 1 to 10 parts by weight;
1 to 10 parts by weight of an air entrainer;
Antifoam 0.5-5 parts by weight; And
Eco-friendly cemented carbide packaged concrete composition comprising 0.01 to 5 parts by weight of a high performance water reducing agent,
Welan gum further comprises 0.1 to 3 parts by weight based on 100 parts by weight of seaweed,
Sodium oleate further comprises 1 to 5 parts by weight based on 100 parts by weight of seaweed,
Butyl glycidyl ether further comprises 1 to 6 parts by weight based on 100 parts by weight of seaweed,
Lithium carbonate further comprises 0.1 to 2 parts by weight based on 100 parts by weight of seaweed,
Acryl nitrile further comprises 1 to 10 parts by weight based on 100 parts by weight of seaweed,
Calcium pyrophosphate further comprises 0.1 to 2 parts by weight based on 100 parts by weight of seaweed,
Calcium nitrite further comprises 1 to 10 parts by weight based on 100 parts by weight of seaweed,
Lithium hydroxide further comprises 1 to 5 parts by weight based on 100 parts by weight of seaweed,
Tetrafluoroethylene further comprises 1 to 10 parts by weight based on 100 parts by weight of seaweed,
It further comprises 1 to 10 parts by weight of allite based on 100 parts by weight of seaweed,
Kaolinite further comprises 2 to 8 parts by weight based on 100 parts by weight of seaweed,
Hypochlorite further comprises 0.1 to 3 parts by weight based on 100 parts by weight of seaweed,
Sulfoxy polyethylene glycol allyl ether further comprises 1 to 10 parts by weight based on 100 parts by weight of seaweed,
Sodium hexametaphosphate further comprises 1 to 10 parts by weight based on 100 parts by weight of seaweed,
Sorbitan monooleic acid ester further comprises 1 to 5 parts by weight based on 100 parts by weight of seaweed,
It further comprises 1 to 3 parts by weight of phenylpropanolamine based on 100 parts by weight of seaweed,
Potassium sorbate further comprises 1 to 10 parts by weight based on 100 parts by weight of seaweed,
It further comprises 1 to 10 parts by weight of itaconic acid based on 100 parts by weight of seaweed,
Trizimite further comprises 1 to 10 parts by weight based on 100 parts by weight of seaweed,
Peat is further included 0.1 to 10 parts by weight based on 100 parts by weight of seaweed,
Further comprising cellulose acetate butyrate in 1 to 10 parts by weight based on 100 parts by weight of seaweed,
Magnesium oxide further comprises 1 to 10 parts by weight based on 100 parts by weight of seaweed,
Eco-friendly cemented carbide packaged concrete composition further comprises 2 to 8 parts by weight based on 100 parts by weight of seaweed.

The method of claim 1,
The seaweeds are thorny green, whole blue green, haecam, green, greenish blue, auditory, beaded, jade, salty seaweed, seaweed, kelp, barn horse, seaweed powder, shellfish, hookberry, brown seaweed, Ecklonia cava, gompi , Rhubarb, small seaweed cousin, mother and child, hoe-san mother and child, worm, squid, laver, woodpecker, firefly starfish, kotoni, dog gambling, boulder, ox radish, bird foot, greenery Eco-friendly super hard pavement concrete composition comprising at least one selected from powders made of spiny radish, silk grass, scabbard, stone starch, stone or Jinari.
delete delete Foreign material removal-cleaning step of cleaning after removing foreign materials on the construction surface;
20 to 150 parts by weight of cement, 10 to 1,000 parts by weight of aggregate, 10 to 40 parts by weight of calcium sulfoaluminate, 2 to 10 parts by weight of metakaolin, based on 100 parts by weight of seaweed on the surface of the foreign material removal-cleaning step, 10 to 70 parts by weight of fly ash, 20 to 60 parts by weight of blast furnace slag, 3 to 15 parts by weight of methyl methacrylate, 1 to 10 parts by weight of retardant, 1 to 10 parts by weight of air entrainer, 0.5 to 5 parts by weight of antifoaming agent, And 0.01 to 5 parts by weight of a high-performance water-reducing agent, and an eco-friendly cemented carbide packaged concrete composition further comprising 0.1 to 3 parts by weight of wellan gum based on 100 parts by weight of seaweed, and 1 to 5 parts by weight of sodium oleate based on 100 parts by weight of seaweed. It further comprises 1 to 6 parts by weight of butyl glycidyl ether based on 100 parts by weight of seaweed, and 0.1 to 2 parts by weight of lithium carbonate based on 100 parts by weight of seaweed It includes, more than 1 to 10 parts by weight of acrylonitrile based on 100 parts by weight of seaweed, and further comprises 0.1 to 2 parts by weight of calcium pyrophosphate based on 100 parts by weight of seaweed, 1 calcium nitrite based on 100 parts by weight of seaweed To 10 parts by weight further comprises, Lithium hydroxide further comprises 1 to 5 parts by weight based on 100 parts by weight of seaweed, Tetrafluoroethylene further comprises 1 to 10 parts by weight based on 100 parts by weight of seaweed, Allite seaweed It further comprises 1 to 10 parts by weight based on 100 parts by weight, kaolinite further comprises 2 to 8 parts by weight based on 100 parts by weight of seaweed, and further comprises hypochlorite as 0.1 to 3 parts by weight based on 100 parts by weight of seaweed, Foxy polyethylene glycol allyl ether further comprises 1 to 10 parts by weight based on 100 parts by weight of seaweed, sodium hexametaphosphate 10 1 to 10 parts by weight based on 0 parts by weight, sorbitan monooleic acid ester further comprises 1 to 5 parts by weight based on 100 parts by weight of seaweed, and 1 to 3 based on 100 parts by weight of phenylpropanolamine It further comprises by weight, further comprises 1 to 10 parts by weight of potassium sorbate, based on 100 parts by weight of seaweed, and further comprises 1 to 10 parts by weight of itaconic acid based on 100 parts by weight of seaweed, trijimite 100 parts by weight of seaweed It further comprises 1 to 10 parts by weight on the basis, and further comprises 0.1 to 10 parts by weight based on 100 parts by weight of seaweed, further comprises 1 to 10 parts by weight of cellulose acetate butylate based on 100 parts by weight of seaweed, magnesium oxide It further comprises 1 to 10 parts by weight based on 100 parts by weight of seaweed, further comprising 2 to 8 parts by weight based on 100 parts by weight of seaweed After placing step of placing a mixed environment friendly packaging per second concrete composition with water; And
Construction method of environmentally friendly super hard pavement concrete composition comprising a curing step of curing the packaging concrete composition after the pouring step.