KR100899375B1 - An asphalt composition comprising recycled asphalt and recycled concrete and said asphalt production method therof - Google Patents

Abstract

The present invention relates to an asphalt mixture, and more particularly to a circulating asphalt mixture composed of a mixture of waste ascon crushes, aggregates, cements, additives and emulsified asphalt. The aggregate uses any one or more of natural aggregate, recycled waste concrete, or aged steelmaking slag, and in particular, when circulating waste concrete, an electric shock composed of a discharge gap, an electric controller, a capacitor, and an electrode electrically connected to each other. Device; A hopper in which circulating aggregate crushed in water and a plurality of times is supplied therein and the electrode is in contact with water therein; A transport pipe which is installed in the fluid storage tank and has a fitting portion formed at one side of the circumferential surface so that the bottom of the hopper is fitted, and is installed in the transport pipe and has one end connected to a driving motor, the other end of the water and circulation aggregate introduced from the hopper. A conveying means composed of a conveying screw for conveying to the plate; And one end rotatably installed at the end of the conveying pipe, the other end protruding to the outside of the fluid storage tank, and a plurality of water discharge holes are formed on the circumferential surface to feed water introduced with the circulation aggregate into the fluid storage tank. The circulation device composed of porous pipes discharged to the

The circulating asphalt mixture of the present invention uses waste steel crushed material, natural aggregate, and steelmaking slag crushed material that have undergone an aging process to reduce the porosity of the asphalt mixture by peeling off the cement mortar foreign matter adhered to the waste concrete.

The acrylic polymer is used as an additive to improve adhesion and tensile strength between aggregates, and anionic emulsified asphalt has the characteristics of significantly reducing adhesive strength, tensile strength, durability and wear rate between aggregates compared to conventional asphalt mixtures.

Waste Ascon, Waste Concrete, Circulation, Regeneration, Electrode, Acrylic Polymer

Description

An asphalt composition comprising recycled asphalt and recycled concrete and said asphalt production method therof}

The present invention relates to an asphalt mixture, and to a circulating asphalt mixture in which cement, emulsified asphalt and additives are mixed with at least one of used ascon and waste concrete, new aggregate or recycled slag.

Asbestos and waste concrete, which account for the largest proportion of waste from industrial sites, take a long time to be naturally decomposed and recycled, so they are neglected in terms of eco-friendly construction methods and recycling of resources. It is preferable to reuse it rather than to discard it. However, only 130,000 tons of waste ascons produced in 2006 were recycled and only 130,000 tons were used. Most of them were used only for road floors or landfills, and recycled ascons made of mixed ascons among 28 million tons of total ascon production. It is only 520,000 tons (1.86%), which is very low compared to Japan's 71% recycled ascon, 60% Germany and 36% Belgium.

The largest part of the industrial regeneration is used for simple reclamation, but in the case of simple reclamation, it is the oil component that is discharged from the waste ascon and there is a risk of soil or water pollution. desirable.

As road paving material, it can be divided into heating asphalt pavement and asphalt pavement. Heated asphalt pavement is a method of heating and mixing when mixing asphalt and aggregate. It causes environmental problems by releasing harmful gases such as carbon dioxide, tar decomposition products, sulfur or nitrogen oxides during the heating process. It is pointed out that there are many problems in that.

On the other hand, asphalt pavement takes a long time to cure due to the slow evaporation rate of water after pavement, and has a weak physical strength.However, it does not require a heating cost, it is eco-friendly due to low emissions of harmful gases, and even when the aggregate surface is wet. It is recognized as an advantage that there is no big problem in the adhesive effect. In this regard, road paving materials using aggregates such as waste ascon and waste concrete for asphalt pavement are urgently required.

Conventionally, as a method of circulating waste ascon or waste concrete by aggregate, it is crushed by the first crusher, and then the foreign matter is removed from the crushed matter by using electromagnet and forced exhaust method. After spraying water and washing, at the same time, it removes organic contaminants such as oil or fine dust, and then shred again by the second shredder and finish by shredding the appropriate amount with the third shredder to meet the construction standard by using the sorter. do.

However, the waste ascon or waste concrete that has been processed and recycled through the general process as described above does not completely remove the cement mortar, and some of the remains remain poor, as well as adversely affecting the action of cement. The binding force of the recycled waste ascon or waste concrete is reduced, and the water content is increased by increasing the porosity, so that the strength of the recycled aggregates is reduced.

The present invention has been made to solve the above problems, a recycled asphalt mixture containing a suitable additive and emulsified asphalt in order to increase the binding force between the aggregate using the waste concrete, the cement mortar is removed, recycled waste ascon and waste concrete The purpose is to provide.

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The present invention relates to 100 parts by weight of waste ascon crushes; An electric shock device comprising a discharge gap, an electric controller, a capacitor, and an electrode electrically connected to each other; A hopper in which circulating aggregate crushed in water and a plurality of times is supplied therein and the electrode is in contact with water therein; A transport pipe which is installed in the fluid storage tank and has a fitting portion formed at one side of the circumferential surface so that the bottom of the hopper is fitted, and is installed in the transport pipe and has one end connected to a driving motor, the other end of the water and circulation aggregate introduced from the hopper. A conveying means composed of a conveying screw for conveying to the plate; And one end rotatably installed at the end of the conveying pipe, the other end protruding to the outside of the fluid storage tank, and a plurality of water discharge holes are formed on the circumferential surface to feed water introduced with the circulation aggregate into the fluid storage tank. 5 to 45 parts by weight of recycled waste concrete recycled by using a circulation device consisting of a porous pipe discharged to; 4.1 to 9.1 parts by weight of cement; 100 to 150 parts by weight of butyl acrylate monomer (BAM), 100 to 150 parts by weight of water, 0.3 to 0.5 parts by weight of emulsifier and 0.05 to 0.2 based on 100 parts by weight of methylmethacylate monomer (MMA) 2.1 to 5.8 parts by weight of the additive is mixed in parts by weight; And 1.1 to 3.5 parts by weight of emulsified asphalt; provides a circulating asphalt mixture, characterized in that the mixture is configured.

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The present invention also relates to 100 parts by weight of waste ascon crushed; Steelmaking slag is pulverized, carbonic acid gas is dissolved in water to prepare a carbonic acid solution having a pH of 3.6 to 4.2, and the carbonic acid solution and the steelmaking slag are reacted until the pH is 6.5 to 7.0. ; 4.1 to 9.1 parts by weight of cement; 100 to 150 parts by weight of butyl acrylate monomer (BAM), 100 to 150 parts by weight of water, 0.3 to 0.5 parts by weight of emulsifier and 0.05 to 0.2 based on 100 parts by weight of methylmethacylate monomer (MMA) 2.1 to 5.8 parts by weight of the additive is mixed in parts by weight; And 1.1 to 3.5 parts by weight of emulsified asphalt; provides a circulating asphalt mixture, characterized in that the mixture is configured.

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The circulating asphalt mixture of the present invention uses waste steel crushed material, natural aggregate, and steelmaking slag crushed material that have undergone an aging process to reduce the porosity of the asphalt mixture by peeling off the cement mortar foreign matter adhered to the waste concrete.

The acrylic polymer is used as an additive to improve adhesion and tensile strength between aggregates, and anionic emulsified asphalt has the characteristics of significantly reducing adhesive strength, tensile strength, durability and wear rate between aggregates compared to conventional asphalt mixtures.

Hereinafter, the present invention will be described in detail with the accompanying drawings.

Terms used in the present invention are as follows.

By "circulation" is meant a process to recycle the waste generated from the construction waste or road resurfacing process, using a mixture of recycling or circulation depending on the context.

"Aggregate" is a material that can be a skeleton of mortar or concrete. A natural aggregate (new aggregate) composed of solid, chemically stable sand, gravel, or a mixture thereof, which is hardened by mixing cement or mortar with asphalt and sand or gravel. After circulating and crushing process, it means all of the recycled aggregates that were transported to the shredding of construction waste having a particle size similar to the grain size of sand or gravel, and it means both natural aggregate (new aggregate) and recycled aggregate unless otherwise specified. Use in combination.

"Asphalt" means a mixture consisting mainly of carbon and hydrogen, the remainder of which is left after distillation of all volatile components in petroleum crude oil.

"Concrete" refers to a mixture of coarse aggregate (gravel) and / or fine aggregate (sand), chopped by being surrounded by cement mortar of cement with water, generally including reinforcement with reinforcing bars or wire mesh, etc. it means.

"Ascon" is a name for shortening asphalt concrete (Asphalt Concrete) refers to a mixture of asphalt, coarse aggregate (gravel) and / or fine aggregate (sand) and pavement filler.

"Additives" are substances added to concrete other than cement, water and aggregate to improve the properties before and after hardening of concrete (cure speed, dispersibility, waterproofness, expandability, foamability, antifoaming, coloring, durability, water repellency, etc.) It means a substance used in a small amount that does not affect the volume calculation of concrete.

"Emulsified asphalt" means asphalt mixed with an emulsifier so that asphalt remains dispersed in water without causing phase separation.

"Steel making slag" is the residue left after extraction of metal from the ore, which means that it forms a layer on pig iron during steelmaking and flows out of the furnace.

The circulating asphalt mixture which can be mixed without using the heating step of the present invention is 10 to 45 parts by weight of aggregate, 4.1 to 9.1 parts by weight of cement, 2.1 to 5.8 parts by weight of additives, and 1.1 to emulsified asphalt, based on 100 parts by weight of waste ascon crushed material. It is characterized in that it is configured by mixing 3.5 parts by weight. When the aggregate is mixed to less than 10 parts by weight it is difficult to adjust the mixing particle size to an appropriate level, it is possible to exceed 45 parts by weight, but because it is difficult to conduct a material test of the circulated aggregate is contained less than 45 parts by weight desirable. In the case of the cement, it is preferable to mix in the range of 4.1 to 9.1 parts by weight so as to allow proper interlocking action between the aggregate and the waste ascon crushed material. The additive is mixed to enhance adhesion, tensile strength, durability, and other functionalities of circulating asphalt, and when added in an amount of less than 2.1 parts by weight, it is difficult to exhibit the functionality as an additive, and when it exceeds 5.8 parts by weight, it may affect the overall viscosity. It is preferable to mix in 2.1-5.8 weight part because it can. The emulsified asphalt serves to restore the performance of aged asphalt and combine aggregates, and may vary depending on the aggregate mixing ratio and the particle size, the average charge of the particles, and the required curing rate. When used in the range shows an appropriate emulsification and curing rate.

The waste ascon crushed product is a primary crushing process of waste ascon generated in the process of removing ascon which is already used for pavement in the process of resurfacing the road; A separation step of removing suspended solids such as metal impurities, waste wood, and garbage contained in the crushed material that has undergone the primary crushing process; A water washing step of removing oil residues and fine dust from the crushed matter after the separation process; A second crushing step of crushing the crushed matter which has been subjected to the washing process again; After the crushed material subjected to the secondary crushing process is separated by components, it is recycled through a third crushing process of selectively crushing components that do not reach a desired particle size.

The aggregate may be used by mixing any one or two or more of natural aggregate, recycled waste concrete or steelmaking slag crushed material.

The circulated waste concrete may be used through a normal circulation process, but it is more preferable to use cement mortar that is not completely removed in the circulation process by using a spark shock wave by an electrode.

In more detail, the process of circulating waste concrete,

An electric shock device comprising a discharge gap, an electric controller, a capacitor, and an electrode electrically connected to each other;

A hopper in which circulating aggregate crushed in water and a plurality of times is supplied therein and the electrode is in contact with water therein;

A transport pipe which is installed in the fluid storage tank and has a fitting portion formed at one side of the circumferential surface so that the bottom of the hopper is fitted, and is installed in the transport pipe and has one end connected to a driving motor, the other end of the water and circulation aggregate introduced from the hopper. A conveying means composed of a conveying screw for conveying to the plate; And

One end is rotatably installed at the end of the conveying pipe, the other end is protruded to the outside of the fluid storage tank, a plurality of water discharge holes are formed on the circumferential surface and the water injected with the circulating aggregate inside the fluid storage tank By using the circulation device composed of porous pipes to discharge,

The water stored in the fluid supply tank 60 is supplied into the hopper 20 through the supply pipe P2, and the circulating aggregate is also introduced into the hopper 20 through the aggregate transport conveyor C1, thereby providing an electric shock device ( When the electrode 14 of the 10) is sensed submerged in the water by the water level sensor S to supply external power to generate a spark shock wave in the electrode 14, the impact force through the water due to the spark shock wave When delivered to the circulating aggregate, foreign matter such as sludge on the surface of the circulating aggregate is peeled off with a fine particle size.

At the same time as the above operation is made, the driving motor (M1) is operated to mix the foreign matter, such as sludge separated from the surface of the circulating aggregate and the circulating aggregate, the porous pipe 50 by the rotational force of the transfer screw in the transfer pipe 41 It is conveyed to the side, at this time by the projection (42a) formed on the surface of the conveying screw 42, the circulating aggregate causes the friction, the foreign matter on the surface of the circulating aggregate is peeled again.

Through this process, when the mixed water and circulating aggregate separated from the foreign substances separated into the porous pipe 50 are transported, the separated foreign substances are discharged into the water discharge hole 51 of the porous pipe 50 and stored in the fluid storage tank 30. Then, the circulating aggregate is discharged to the other end of the porous pipe 50 and transported / stored to the yard by the aggregate discharge conveyor C2. In this process, the porous pipe 50 is rotated by the rotational force of the rotary motor (M2) connected by the belt pulley, the circulation aggregate is rubbed on the projection 52 formed on the inner circumferential surface of the porous pipe 50 on the surface of the circulating aggregate The attached foreign matter is removed again.

In addition, the water mixed with the fine powder stored in the fluid storage tank 30 is discharged to the outside of the fluid storage tank 30 through the discharge pipe (P1) by operating the pump (PP1) installed on the discharge pipe (P1), At this time, the fine powder mixed in the water through the filter (F) is filtered. The fine powder thus filtered is discharged to the fine powder discharge conveyor (C3). The water purified by the filter through this process is supplied into the fluid supply tank 60 through the discharge pipe (P1). The water stored in the fluid supply tank is supplied into the hopper 20 through the supply pipe P2 by operating the pump PP2 installed on the supply pipe P2.

Waste concrete, which has undergone the circulation process, has the cement mortar debris removed from the outside to lower the porosity of the aggregate, thereby increasing the water repellency, thereby significantly increasing the strength of the circulating asphalt mixture, and simultaneously rinsing with water, thereby reducing the circulation process time. There is a characteristic.

The steelmaking slag combines water with free CaO contained therein to form Ca (OH) ₂ , causing volume expansion of the steelmaking slag, which may cause cracking during the curing process. It is preferable to use so as to reduce the expansion through.

As a process of aging the steelmaking slag,

A reaction step of injecting water onto the slag and simultaneously injecting exhaust gas to react with the exhaust gas and water;

An injection step of injecting a product generated by the reaction of the exhaust gas and water onto slag; And

Using a process consisting of reacting the product with slag to stabilize free CaO contained in the slag,

Grinding step of grinding steelmaking slag;

A carbonic acid solution preparing step of dissolving carbonic acid gas in water to prepare a carbonic acid solution having a pH of 3.6 to 4.2; And

An aging process consisting of a reaction step of reacting the carbonate solution and the steelmaking slag until the pH 6.5 to 7.0 may be used.

When the pH of the carbonic acid solution is 3.6, it is almost saturated. When the pH of the carbonic acid solution is more than 4.2, the amount of the carbonic acid solution required for the reaction increases. When the carbonic acid solution and the steelmaking slag are reacted, if the pH is less than 6.5, the reaction is not sufficiently completed. If the carbonic acid solution and the steelmaking slag are exceeded, the reaction is completed in the above range.

The additive may be a general additive used for road pavement asphalt, it is more preferable to use an acrylic polymer to increase the binding force between the particles of the circulating asphalt concrete.

The acrylic polymer is a butyl acrylate monomer (BAM), 100 to 150 parts by weight, 100 to 150 parts by weight of water, 0.3 to 0.5 parts by weight of an emulsifier based on 100 parts by weight of methyl methacrylate monomer (MMA). And 0.05 to 0.2 parts by weight of the catalyst.

As the emulsifier, it is more preferable to use a general alkaline sulfonate, and the catalyst is preferably used by mixing ammonium persulfate and sodium bisulfite as a main catalyst.

The acrylic polymer,

An emulsifier dissolving step of dissolving an emulsifier in water;

A monomer dissolving step of mixing MMA and BAM in a solution in which the emulsifier is dissolved;

A main catalyst mixing step of mixing the main catalyst in a solution in which the monomer is dissolved; And

The main catalyst is prepared through a subcatalyst mixing step of mixing the subcatalyst in the mixed solution.

When the additive is used in the circulating asphalt mixture, a network structure is formed between the aggregate and the aggregate to reduce the porosity, increase the adhesion and tensile strength between the aggregates, protect the road surface, reduce the wear rate, and reduce the occurrence of cracks. It works.

The emulsified asphalt is preferably used an anionic emulsified asphalt in order to improve the adhesion of the circulating asphalt mixture and to give an appropriate curing time,

Asphalt is more preferably composed of 35 to 50%, 40 to 45% moisture, 0.3 to 0.5% hydrogen sulfide, 2.0 to 2.5% emulsifier and 2 to 4% surfactant.

The anionic surfactants used in the emulsified asphalt include sodium resinate salts, lignin sulfonic acid alkali metal salts, naphthalene sulfonic acid, formaldehyde, alkyl naphthalene derivatives, chlorinated benzene derivatives, alkylloryl sulfonic acids, fatty acid alkali metal salts, and alkaline benzene sulfones. Any one or more of acid salts, α-olefinsulfonates, polyoxyethylenealkylphenylethers, sodium alkylallylsulfonates, alkylphosphates, alkylallyl ether sulfates, or ammoniumalkylallylethersulfates Can be.

When the anionic emulsified asphalt is used, it is possible to prepare an asphalt mixture having excellent hardening and adhesive strength by releasing the emulsified state of the asphalt concrete mixture.

EXAMPLES Preparation of Circulating Asphalt Mixture

Waste ascon at the mixing ratio as shown in Table 1; Any one of waste concrete, recycled slag or natural aggregate as aggregate; cement; Acrylic polymers; And the emulsion asphalt mixture was mixed and cured to prepare a circulating asphalt mixture of the present invention. In the following Table 1 waste corn means that the waste concrete recycled by the waste concrete recycling method of the present invention mixed with aggregate, slag means that the mixed slag recycled into aggregate, mixed aggregate is natural aggregate, waste The aggregate means a mixture of concrete and recycled slag in the same weight ratio.

Waste Ascon aggregate cement Acrylic Polymer Emulsified asphalt Control group 1 6.16 0 0.49 0.25 0.11 Example 1 Waste Cone 6.24 0.8 0.56 0.28 0.12 Control 2 7.05 0 0.56 0.28 0.12 Example 2 Waste Cone 6.25 0.8 0.56 0.28 0.12 Control group 3 7.05 0 0.56 0.28 0.12 Example 3 slag 6.49 0.8 0.32 0.28 0.12 Example 4 Natural Aggregate 6.49 0.8 0.32 0.28 0.12 Example 5 Waste Corn 6.25 0.8 0.56 0.28 0.12 Example 6 Mixing 6.49 0.8 0.32 0.28 0.12 Control group 4 6.37 0 0.28 0.25 0.11 Example 7 Waste Cone 6.32 0.8 0.48 0.24 0.16 Example 8 slag 6.32 0.8 0.48 0.24 0.16 Example 9 Natural Aggregate 6.32 0.8 0.48 0.24 0.16 Control group 5 7.29 0 0.32 0.28 0.12 Example 10 slag 6.49 0.8 0.32 0.28 0.12 Example 11 Natural Aggregate 6.49 0.8 0.32 0.28 0.12 Example 12 Waste Cone 6.49 0.8 0.32 0.28 0.12 Example 13 Mixing 6.49 0.8 0.32 0.28 0.12 Control group 6 7.29 0 0.32 0.28 0.12 Example 14 slag 6.49 0.8 0.32 0.28 0.12 Example 15 Natural Aggregate 6.49 0.8 0.32 0.28 0.12 Example 16 Waste Cone 6.49 0.8 0.32 0.28 0.12

[Quality test] Quality test of circulating asphalt mixture

Test Example 1 Mixed Particle Size Test

The particle size curve of Figure 4 is the particle size curve of Example 1, it can be seen that the construction waste materials recycling road pavement guidelines. The particle size curves of Examples 2 to 16 also fit the above guidelines (not shown).

[Test Example 2] Quality test of circulating asphalt mixture

Porosity and Marshall stability were measured using a mixture of Controls 1 to 3 and Examples 1 to 6. The test was performed by averaging six molds (test specimens) of 1.15 Kg each. Compaction recovery was performed uniformly 50 times.

Porosity was measured using the theoretical maximum density (KS F 2366) and apparent density (KS F 2353) as shown in the following equation.

In addition, Marshall stability is the process of curing the mixture of the control groups 1 to 3 and Examples 1 to 6 at room temperature in the mold for 1 day; Curing the mold in a drying furnace at 38 ° C. for 1 day after demolding; Marshall stability was measured at 25 ° C. in three specimens not immersed and immersed.

Porosity and Marshall stability measurement results are shown in Table 2 below.

density Theoretical density Porosity Marshall Stability Room temperature Immersion Residue Film Ratio (%) Flow value Control group 1 2.15 2.43 11.60 30305 29792 98.3 95 30.90 Example 1 2.14 2.44 12.10 32322 31678 98.0 95 29.72 Control 2 2.17 2.48 12.20 30305 29792 98.3 95 30.90 Example 2 2.17 2.47 12.03 32322 31678 98.0 95 29.72 Control group 3 2.18 2.46 11.09 30305 29792 98.3 95 30.90 Example 3 2.20 2.45 10.25 34925 34085 97.6 95 27.64 Example 4 2.19 2.45 10.56 33832 32885 97.2 95 27.94 Example 5 2.19 2.46 10.95 32322 31678 98.0 95 29.72 Example 6 2.18 2.45 11.02 31350 30378 97.9 95 29.13

As a result of the measurement, the mixture of Examples 1 to 6 of the present invention was found to be suitable for application to a low traffic road.

[Test Example 3] Quality test of circulating asphalt mixture

Porosity and Marshall stability were measured using a mixture of Controls 4 to 6 and Examples 7 to 16. The test was performed by averaging six molds (test specimens) of 1.15 Kg each. Compaction recovery was performed uniformly 75 times.

Porosity was measured using the theoretical maximum density (KS F 2366) and apparent density (KS F 2353) as shown in the following equation.

Curing the mixture of Control 4 to Control 6 and Examples 7 to 16 at room temperature in a mold for 3 days; After demolding, curing for 4 days by depressurizing to 10-20mmHg at room temperature; And Marshall stability was measured in the state which the specimen was immersed at 60 degreeC for 30 minutes.

Porosity and Marshall stability measurement results are shown in Table 3 below.

density Theoretical density Porosity Marshall Stability Immersion Film Ratio (%) Flow value Control group 4 2.18 2.48 12.14 37082 95 29.00 Example 7 2.18 2.50 12.85 30308 95 28.34 Example 8 2.27 2.55 10.68 42647 95 20.90 Example 9 2.27 2.55 10.68 42882 95 18.77 Control group 5 2.15 2.49 13.61 37082 95 29.00 Example 10 2.27 2.55 10.68 42647 95 20.90 Example 11 2.18 2.48 12.10 42882 95 18.77 Example 12 2.19 2.51 12.78 30308 95 27.27 Example 13 2.22 2.52 11.90 33268 95 29.34 Control group 6 2.20 2.47 10.94 37082 95 29.00 Example 14 2.27 2.52 9.82 42647 95 20.9 Example 15 2.21 2.46 10.22 42882 95 18.77 Example 16 2.21 2.47 10.57 30308 95 27.27

As a result of the measurement, it was confirmed that the mixture of Examples 7 to 16 of the present invention is suitable for application to heavy traffic roads.

The test results confirmed that the circulating asphalt mixture of the present invention is a quality suitable for both low traffic and heavy traffic roads when the mixing ratio and curing method are properly adjusted.

1 is a schematic diagram schematically showing a waste concrete circulation process.

2 is a perspective view of the waste concrete circulation process.

Figure 3 is a detailed view of the transport means during the waste concrete circulation process.

4 is a particle size curve of Example 1. FIG.

<Code Description of Main Parts of Drawing>

10: electric shock device 11: condenser 12: electric controller

13 discharge gap 14 electrode 20 hopper

30: fluid storage tank 40: transfer means 41: transfer pipe

42: transfer screw 50: porous pipe 60: fluid supply tank

C1: Aggregate transport conveyor C2: Aggregate discharge conveyor

C3: Fine powder discharge conveyor M1: Drive motor M2: Rotary motor

P1: discharge pipe P2: supply pipe S: water level sensor

Claims (7)

delete delete delete Based on 100 parts by weight of waste ascon crushes; An electric shock device comprising a discharge gap, an electric controller, a capacitor, and an electrode electrically connected to each other; A hopper in which circulating aggregate crushed in water and a plurality of times is supplied therein and the electrode is in contact with water therein; A transport pipe which is installed in the fluid storage tank and has a fitting portion formed at one side of the circumferential surface so that the bottom of the hopper is fitted, and is installed in the transport pipe and has one end connected to a driving motor, the other end of the water and circulation aggregate introduced from the hopper. A conveying means composed of a conveying screw for conveying to the plate; And one end rotatably installed at the end of the conveying pipe, the other end protruding to the outside of the fluid storage tank, and a plurality of water discharge holes are formed on the circumferential surface to feed water introduced with the circulation aggregate into the fluid storage tank. 5 to 45 parts by weight of recycled waste concrete recycled by using a circulation device consisting of a porous pipe discharged to; 4.1 to 9.1 parts by weight of cement; 100 to 150 parts by weight of butyl acrylate monomer (BAM), 100 to 150 parts by weight of water, 0.3 to 0.5 parts by weight of emulsifier and 0.05 to 0.2 based on 100 parts by weight of methylmethacylate monomer (MMA) 2.1 to 5.8 parts by weight of the additive is mixed in parts by weight; And Emulsified asphalt 1.1 to 3.5 parts by weight; circulating asphalt mixture, characterized in that the mixture is configured. Based on 100 parts by weight of waste ascon crushes; Steelmaking slag is pulverized, carbonic acid gas is dissolved in water to prepare a carbonic acid solution having a pH of 3.6 to 4.2, and the carbonic acid solution and the steelmaking slag are reacted until the pH is 6.5 to 7.0. ; 4.1 to 9.1 parts by weight of cement; 100 to 150 parts by weight of butyl acrylate monomer (BAM), 100 to 150 parts by weight of water, 0.3 to 0.5 parts by weight of emulsifier and 0.05 to 0.2 based on 100 parts by weight of methylmethacylate monomer (MMA) 2.1 to 5.8 parts by weight of the additive is mixed in parts by weight; And Emulsified asphalt 1.1 to 3.5 parts by weight; circulating asphalt mixture, characterized in that the mixture is configured. delete delete

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