KR101860848B1 - Composition for extruding building panel with fine particle of carbonized waste concrete of mineral carbonization process, manufacturing method of extruding building panel using thereof, and extruding panel - Google Patents

Abstract

The present invention relates to an extruded panel composition for a building, mixed with a fine powder of carbonized waste concrete in a mineral carbonization process, a manufacturing method for an extruded panel for a building using the same, and an extruded panel for a building. Specifically, the extruded panel used as a construction material is manufactured from a fine powder of carbonized waste concrete, which is a mineral carbonization matter in which calcium carbonate generated during the mineral carbonization process and waste concrete are mixed. Thus, the extruded panel has excellent economic feasibility by recycling the waste concrete which is construction waste and solves environment pollution problems by reducing the amount of waste. The extruded panel also has excellent durability, and the extruded panel composition has effects such as irradiation of far-infrared rays and anions.

Description

TECHNICAL FIELD The present invention relates to an extrusion panel composition for architectural use mixed with carbonated waste concrete fine powder of a mineral carbonation process, and a method for manufacturing an extrusion panel for construction using the same, and an extrusion panel for construction using the same. BACKGROUND OF THE INVENTION EXTRUDING BUILDING PANEL USING THEREOF, AND EXTRUDING PANEL}

The present invention relates to an extruded panel composition for construction mixed with carbonated waste concrete powder of a mineral carbonation process, and a method for manufacturing an extruded panel for construction using the same, and more particularly, to a method of manufacturing an extruded panel for construction using calcium carbonate and waste concrete By using the carbonated waste concrete fine powder that is mixed mineral carbonate, it is possible to recycle waste concrete, which is a construction waste, by manufacturing the extruded panel necessary for building materials, thereby solving the environmental pollution problem by reducing the waste as well as being economical. The present invention relates to an extruded panel composition for construction, in which carbonized waste concrete powder is mixed with a mineral carbonation process, and a manufacturing method and an extruded panel for a construction extruded panel.

With the development of industry, global warming problem is rising due to the increase of atmospheric concentration of carbon dioxide. The main cause of increase of atmospheric carbon dioxide concentration is fossil fuel such as coal, oil, liquefied natural gas .

From the beginning of industrialization in the early 19th century, the concentration of greenhouse gases such as nitrogen dioxide (CO ₂ ), methane (CH ₄ ), nitrogen dioxide and halocarbon increased in the atmosphere and rapidly increased since the middle of the 20th century.

As global warming is accelerated due to the increase of greenhouse gases, regulations on emission and treatment are becoming strict. Global concerns about global warming are increasingly being raised at the UN Conference on Environment and Development in Rio in Brazil in June 1992. Developed countries, including the United States and Japan, will cut global greenhouse gas emissions by 5.2% There is international consensus on how to reduce greenhouse gas emissions. Particularly, separation and fixing of carbon dioxide, which accounts for about 80% of greenhouse gases causing global warming phenomenon, became more important problem.

Techniques to reduce carbon dioxide emissions include energy saving technologies for reducing emissions, separation and recovery technologies for carbon dioxide emissions, technologies for using or fixing carbon dioxide, and renewable energy technologies for not emitting carbon dioxide.

As a carbon dioxide separation and recovery technology that has been studied so far, the absorption method, the adsorption method, the membrane separation method, and the deep sea cooling method are suggested as realistic alternatives. Particularly, the absorption method is easy to apply for large-volume gas treatment and is suitable for low-concentration gas separation, so that it can be easily applied to most industrial plants and power plants and is currently in commercial operation.

Mineral carbonation technology is a technique to synthesize carbon dioxide (CO ₂ ) collected from a source with new mineral which reacts with inorganic industrial waste or inorganic industrial waste emitted from industry. It uses mineral and CO ₂ (CaCO ₃ , MgCO ₃ ). The carbonate produced is stable, does not dissolve in water, and can not release atmospheric carbon dioxide. As a environmentally harmless mineral, it can provide a permanent storage solution of carbon dioxide. Solid carbonate can also be used as building materials.

Concrete-based by-products contain about 20 to 60% by weight of calcium oxide (CaO), which is a starting material for mineral carbonation, except for aggregates, and are suitable for mineral carbonation. And as a material having a high silica content in the case of a residue after the carbonate recovery, there is a possibility to utilize it as a material that can replace natural resources.

Mineral carbonation by using all the concrete wastes generated in the whole country can achieve 6,971,000 tons of greenhouse gas reduction effect per year. Therefore, mineral carbonation using waste concrete is a very useful means for reducing greenhouse gas. However, Mineral carbonation of minerals has been limited and research on the reaction products after minerals carbonation process has been very limited.

(Prior art 1) Korean Patent Registration No. 10-0879247 (Prior art 2) Korean Patent Registration No. 10-1659892

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a carbonated mineral concrete which is a mineral carbonated material mixed with carbonate minerals (CaCO ₃ , MgCO ₃ ) The present invention has been made in view of the above problems, and it is an object of the present invention to provide an extruded panel composition for construction using mixed carbonated spent concrete powder of a mineral carbonation process for producing an extruded panel.

The present invention also relates to a method for producing carbon dioxide minerals (CaCO ₃ , MgCO ₃ ) which does not dissolve in water by reacting waste concrete fine powder with carbon dioxide, And a carbonated mineral precipitate, that is, carbonate carbonate minerals can be utilized, and a method for manufacturing an extruded panel using the same, and an extrusion panel using the composition There is another purpose.

According to an aspect of the present invention,

The pulp fiber is used in an amount of from 0.5 to 2.0% by weight and the thickener is used in an amount of from 0.5 to 2.0% by weight, the pulverized fibrous material containing 70 to 80% by weight of carbonated pulverized concrete powder, 15 to 25% .

The powder-based material is characterized by comprising 30 to 55% by weight of one kind of ordinary Portland cement having an average particle size in the range of 15 to 75 mu m, an SiO2 content of 85% by weight, and an average particle size 30 to 40% by weight of the fine silica powder and 15 to 30% by weight of the carbonated waste concrete fine powder having an average particle size in the range of 15 to 75 占 퐉.

The thickening agent is methyl cellulose.

The carbonated waste concrete fine powder is carbonated by supplying carbon dioxide to sludge mixed with 5 to 20 wt% of pulverized concrete fine powder and 80 to 95 wt% of water.

Next, the carbonated waste concrete fine powder contains 43 to 46 wt% of SiO ₂ , 26 to 30 wt% of CaO, 11 to 13 wt% of Al ₂ O ₃ , 5 to 6 wt% of Fe ₂ O ₃ , K ₂ O 3 to 4 2 to 3 wt% of MgO, 1 to 2 wt% of Na ₂ O, 0.5 to 0.7 wt% of TiO ₂ , 0.1 to 0.2 wt% of MnO and 1.7 to 1.9 wt% of other components.

Subsequently, the carbonized waste concrete fine powder is injected into the inside of the sponge carrier to increase the carbon dioxide removal rate during carbonation.

According to another aspect of the present invention,

In the method of manufacturing an extruded panel using the extruded panel composition for architectural use mixed with carbonated waste concrete fine powder, 70 to 80% by weight of powdered material containing carbonated waste concrete fine powder, 15 to 25% by weight of water, To 3 wt%, polypropylene (PP) fiber 0.5 to 2.0 wt%, and thickener 0.5 to 2.0 wt%; A molding step of extruding the mixture into an extruder; And a curing step of curing the molded product.

The mixing step is carried out in such a manner that 70 to 80% by weight of powdered material containing carbonated waste concrete fine powder, 1 to 3% by weight of pulp fibers, 0.5 to 2.0% by weight of polypropylene (PP) fibers, 0.5 to 2.0% For 5 minutes, and 15 to 25% by weight of water are added thereto, followed by secondary mixing for 5 to 7 minutes.

Further, the powder-based material is characterized by comprising 30 to 55% by weight of one kind of ordinary Portland cement having an average particle size in the range of 15 to 75 占 퐉, 85% by weight of SiO2 and having an average particle size 30 to 40% by weight of the fine silica powder and 15 to 30% by weight of the carbonated waste concrete fine powder having an average particle size in the range of 15 to 75 占 퐉.

The curing step is performed by steam curing at a temperature of 80 ° C and a relative humidity of 100%, or autoclave curing at 10 ° C and 180 ° C.

According to still another aspect of the present invention,

And an extrusion panel manufactured by a manufacturing method of a building extrusion panel using the extrusion panel composition for construction mixed with the carbonated waste concrete fine powder.

According to the present invention, the extrusion panel composition for construction mixed with the carbonated waste concrete fine powder of the mineral carbonation process of the present invention and the manufacturing method and extrusion panel for the construction extrusion panel using the same, calcium carbonate and waste concrete generated in the mineral carbonation process By manufacturing extruded panels, which are building materials, by using carbonated waste concrete fine powder, which is a mixed mineral carbonated material, waste concrete, which is a construction waste, is recycled to solve not only economical efficiency but also environmental pollution problem by reducing waste, The building material composition can have effects such as anion and far-infrared radiation.

In addition, according to the present invention, it is possible to produce a carbonate mineral (CaCO ₃ , MgCO ₃ ) which does not dissolve in water due to the reaction of waste concrete fine powder with carbon dioxide and can not release atmospheric carbon dioxide, Solution.

In addition, according to the present invention, a carbonate mineral can be directly used as a construction material, and as a material having a high silica content in the case of a residue after recovering a carbonate mineral, it can be utilized as a substitute for natural resources.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a process diagram for explaining a method for manufacturing an extrusion panel for a building using a composition for extruding panels for construction mixed with carbonated waste concrete powder of a mineral carbonation process according to the present invention. FIG.
2 is a view of a mineral carbonation reactor applied to an experimental example of the present invention.
FIG. 3 is a graph showing the influence of the waste concrete storage tank and sponge carrier supply on mineral carbonation.
4 is an SEM photograph of carbonated waste concrete fine powder produced by a mineral carbonation reactor.
5 is a graph showing penetration resistance and water / binder ratio according to an experimental example of the present invention.
6 is a graph showing the compressive strength according to the experimental example of the present invention.
7 is a graph showing the bending strength according to an experimental example of the present invention.
FIGS. 8 and 9 are graphs showing the C / S molar ratios according to substitution ratios of each compound substituting the silica fine powder, the waste concrete fine powder raw material sample and the carbonated waste concrete fine powder.
10 is a graph showing the compressive strength according to Experimental Examples for Replacing the Fine Silica Powder of the Present Invention.
11 is a graph showing the flexural strength according to the experimental example of substituting the fine silica powder of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an extrusion panel composition for construction in which a carbonated waste concrete fine powder of a mineral carbonation process according to the present invention is mixed will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and these may be changed according to the intention of the user, the operator, or the like. Therefore, the definition should be based on the contents throughout this specification.

First, the composition for the extrusion panel in which the carbonated waste concrete fine powder of the mineral carbonation process according to the present invention is mixed comprises 70 to 80% by weight of powdery material containing carbonated waste concrete fine powder, 15 to 25% by weight of water, 3 to 3 wt% of polypropylene (PP) fiber, 0.5 to 2.0 wt% of polypropylene (PP) fiber, and 0.5 to 2.0 wt% of a thickener.

Then, the powder-based material is one kinds of ordinary Portland cement and 30-55% by weight, SiO ₂ content 85% by weight, the particles have an average particle size of 20 ~ 50㎛ range particles have a mean particle size in the range 15 ~ 75㎛ 30 to 40% by weight of fine silica powder having a mean particle size in the range of 15 to 75 占 퐉, and 20 to 30% by weight of carbonated waste concrete fine powder having a particle size in the range of 15 to 75 占 퐉.

At this time, one kind of ordinary Portland cement is a cement according to KS L 5201, and the particles have an average particle size in the range of 15 to 75 μm and are mixed in 30 to 55% by weight. When they are mixed in less than 30% If it exceeds 55% by weight, the production cost is increased, preferably 50% by weight.

In addition, the silica fine powder (silica fine powder) is collected by the dust collector in the aggregate production process and is mixed at 25 to 35% by weight. When mixed at less than 20% by weight, the strength is weakened. Preferably 37.5% by weight.

The carbonated waste concrete powder in the mineral carbonation process is carbonated by supplying carbon dioxide to sludge or remicon concentrate mixed with 5 to 20 wt% of pulverized concrete fine powder and 80 to 95 wt% of water to produce carbonated mineral (CaCO ₃ , MgCO ₃ ) And unreacted waste concrete fine powder and when mixed with 10-30% by weight of the fine silica powder, satisfies the optimum hydrothermal synthesis condition and contributes to the strength enhancement, and when it exceeds 30% by weight, the strength is weakened By weight, preferably 12.5% by weight. At this time, the carbonation waste concrete powder is SiO ₂ 43 ~ 46 wt%, CaO 26 ~ 30 _{wt%, Al 2 O 3 11 ~} 13 _{weight%, Fe 2 O 3 5 ~} 6 wt%, K ₂ O 3 ~ 4 parts by weight %, MgO 2 ~ 3 wt%, Na ₂ O 1 ~ ₂ wt%, TiO ₂ 0.5 ~ 0.7 wt%, MnO 0.1 ~ 0.2 weight%, and others are constituents of 1.7 ~ 1.9% by weight, preferably SiO ₂ 44.8 weight%, CaO 28.1 wt%, Al ₂ O ₃ 12.3 wt.%, Fe ₂ O ₃ 5.49 wt.%, K ₂ O 3.27 wt%, MgO 2.27% by weight, Na ₂ O 1.17% by weight, TiO ₂ 0.635% by weight, MnO 0.149% by weight, and the other components 1.861% by weight. In addition, it is preferable to inject the sponge carrier into the inside of the carbonated waste concrete fine powder so as to increase the carbon dioxide removal rate during carbonation.

The pulp fibers are then mixed in an amount of from 1 to 3% by weight so that the length of the pulp fibers is less than 2 mm, so that the surface finish is smooth, the productivity is increased and the bending strength of the extruded product is enhanced. When the amount is more than 3% by weight, the production cost is increased, and preferably 1.4% by weight.

Subsequently, the polypropylene (PP) fiber has a length of less than 20 mm to prevent cracking in the compression panel, prevent explosion by acting as a passage of internal water vapor at high temperature exposure, and improve bending strength, impact resistance and toughness If the content is less than 0.5% by weight, the effect is insignificant. If the content is more than 2% by weight, the production cost is increased, and preferably the content is 0.6% by weight.

On the other hand, the thickening agent is a methyl cellulose system and is mixed in an amount of 0.5 to 2.0 wt% so as to ensure a kneading agent at a low water / binder ratio. When the amount is less than 0.5 wt%, the effect is insignificant, , The production cost is increased, and preferably 0.5 wt%.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like elements, and wherein: FIG. 1 is a perspective view of a construction extrusion panel according to an embodiment of the present invention;

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a process diagram for explaining a method for manufacturing an extrusion panel for a building using a composition for extruding panels for construction mixed with carbonated waste concrete powder of a mineral carbonation process according to the present invention. FIG.

Referring to FIG. 1, a method for manufacturing an extrusion panel for a building using a composition extrusion panel for construction mixed with carbonated waste concrete fine powder of a mineral carbonation process according to the present invention comprises a mixing step (S10), a molding step (S20) (S30).

&Quot; Mixing process-S10 &

First, 70 to 80% by weight of powdered material including carbonated waste concrete fine powder, 15 to 25% by weight of water, 1 to 3% by weight of pulp fiber, 0.5 to 2.0% by weight of polypropylene (PP) fiber, %. In the mixing step S10, 70 to 80% by weight of powdered material containing carbonated waste concrete fine powder, 1 to 3% by weight of pulp fibers, 0.5 to 2.0% by weight of polypropylene (PP) fibers, 0.5 to 2.0% (S11), and 15 to 25% by weight of water are added thereto, followed by secondary mixing for 5 to 7 minutes (S12).

Also, the powder-based material has 30 to 55% by weight of one kind of ordinary Portland cement having a powder range of 3,000 to 4,000 cm 2 / g, an SiO 2 content of 85% by weight and a particle having an average particle size in the range of 20 to 50 μm 30 to 40% by weight of fine silica powder, and 20 to 30% by weight of the carbonated waste concrete fine powder having an average particle size in the range of 15 to 75 占 퐉.

&Quot; Forming process-S20 "

When mixing of the mixture is completed, the mixture is extruded into a panel form.

"Curing Process-S30"

When the molding is completed, the molded article is cured. At this time, the curing process (S30) is performed by steam curing at a temperature of 80 DEG C and a relative humidity of 100%, or autoclave curing at 10 atm and 180 DEG C.

&Quot; Experimental Example &

First, FIG mineral after covering the surface of the solution put into the sponge carrier to waste concrete reservoir supernatant 400㎖ contained in the carbonation reaction vessel with the sponge carrier 5% carbon dioxide _{(CO 2) 200㎖ / min,} 400 to the mixed gas flow, respectively shown in Ml / min, 800 ml / min, and the mineral carbonation efficiency was evaluated.

FIG. 3 is a graph showing the influence of the waste concrete tank and the sponge carrier on the mineral carbonation, and FIG. 4 is an SEM photograph of the carbonated waste concrete powder produced by the mineral carbonation reactor.

As shown in Table 1 and FIG. 3, when the residence time in the solution of carbon dioxide was induced by using the sponge carrier, the mineral carbonation efficiency was increased, and it was confirmed that carbonated waste concrete fine powder was generated as shown in FIG. This can be confirmed by the mineral carbonation reactor in the mineral carbonation process.

1. Experimental Plan

As shown in the following Table 2, the experimental plan was set as a control mixture using 100% of the one kind of ordinary Portland cement (OPC), and also the fine powder of silica, the waste concrete fine powder, The experiment was carried out by replacing carbonated waste concrete fine powder (mixed state of calcium carbonate fine powder and waste concrete fine powder) by 25% and 50% by weight, respectively. The chemical composition of each material is shown in Table 3, and the SiO ₂ content of the waste concrete fine powder and the carbonated waste concrete fine powder was as high as 45% by weight. Table 4 shows the experimental mixtures. At this time, in the case of carbonated waste concrete fine powder, there is a waste concrete fine powder and calcium carbonate generated in the carbonation process without carbon dioxide ending, that is, the carbon dioxide concentration is changed, and they are separated from water and used as carbonated waste concrete fine powder . At this time, separate dehydration, drying and pulverization processes can be performed.

2. Experimental results

2.1 Intrusion Resistance

5 is a graph showing penetration resistance and water / binder ratio according to an experimental example of the present invention. In the case of penetration resistance, it represents the quality of the extrusion panel molding, which is related to the formation of the reinforcement. The amount of water used was adjusted so that the water / binder ratio had a constant value for a certain level of penetration resistance according to the formulation. As shown in FIG. 3, the water / binder ratio of the extruded panel using the waste concrete was higher than that of the silica fine powder, regardless of the state of the waste concrete. This is probably due to the pores of the waste concrete fine powder in which the binder is reacted. It is considered that the absorption rate of carbonated waste concrete powder does not change much.

2.2 Compressive strength

6 is a graph showing the compressive strength according to the experimental example of the present invention. As a result, the compressive strength tended to increase with the substitution rate of silica fine powder in the autoclave curing. This is because it was close to the optimal CaO / SiO ₂ molar ratio as the substitution ratio of the silica fine powder increased. In the case of using the waste concrete fine powder, the strength was decreased compared with the case of using the silica fine powder. However, when 50% of the carbonated waste concrete powder is replaced, the strength is somewhat increased as compared with the existing waste concrete. Therefore, it may be used as a substitute material for mixing with the fine silica powder.

2.3 Flexural strength

7 is a graph showing the bending strength according to an experimental example of the present invention. As a result, it showed the highest strength when replacing 50 wt% of silica fine powder like the tendency of compressive strength in autoclave curing. In the case of the specimens in which carbonated waste concrete fine powder was replaced by 50 wt%, the difference in flexural strength was about 7 MPa compared to the specimens in which the silica fine powder was replaced by 50 wt%. However, when 25 wt% And about 2 MPa, respectively, indicating that there is a possibility of use. It is considered that the lower bending strength was exhibited in the case of replacing 50% by weight because the silica content of carbonated waste concrete fine powder is lower than that of high purity silica fine powder.

The carbonated waste concrete powder and waste concrete powder showed similar strength. Based on these results, it is concluded that the mineral carbonation process has no harmful effect on the reaction of binders. In addition, carbonated waste concrete fine powders are considered to be worthwhile to exhibit strength equivalent to that of conventional waste concrete fine powders, even though they are secondary byproducts reacted with carbon dioxide.

2.4 C / S mole ratio of each compound

8 and 9 are graphs showing the C / S molar ratios according to substitution ratios of the respective substitutes of the fine powder of silica, the waste concrete fine powder raw material and the carbonated waste concrete fine powder, and are graphs for predicting suitable hydrothermal synthesis conditions.

It was found that there was no satisfactory formulation in the range of 0.85 ~ 1.0 suggested by the optimal C / S molar ratio in various literature for the hydrothermal synthesis reaction among the compounds used in the experiment, and 50% by weight of the silica powder having the highest strength This C / S molar ratio was closest to 0.68. In the case of using the waste concrete fine powder raw material and the carbonated waste concrete fine powder, the C / S molar ratio was found to be as high as 1.6 even after replacing 50% by weight. As shown in FIG. 8, the waste concrete fine powder sample and the carbonated waste When the concrete fine powder is mixed with 25 to 50 wt% of the fine silica powder, the optimum C / S molar ratio satisfies the range of 0.85 to 1.0.

2.5 Replacement of Waste Concrete with Fine Particles of Silica

2.5.1 Compressive Strength

10 is a graph showing the compressive strength according to Experimental Example of Alternative Silica Fine Powder of the Present Invention, wherein 50% by weight of one kind of ordinary Portland cement (OPC) and 50% by weight of fine silica powder were set as control, 25 is a graph showing the compressive strength of an extruded panel in which 25 wt% of fine silica powder is replaced with a waste concrete fine powder raw material sample and carbonated waste concrete fine powder. As a result, in case of curing cement, the tendency was shown to be slight but the tendency to increase with the substitution regardless of the carbonation of waste concrete, and this tendency was more evident in the autoclave curing. The strength of specimens replaced with 50 wt% waste concrete specimen was lowered due to cracking during curing, but the strength of specimens replaced with 25 wt% waste concrete specimen increased by 3.8 MPa. The strength of carbonated waste concrete specimens replacing 25 wt.% And 50 wt.% Of specimens was similar to that of standard specimens.

From the results, it was found that 25 ~ 50 wt% of the fine powder of silica was mixed with the waste concrete fine powder and the result was favorable in strength. Among them, the carbonated waste concrete powder showed higher strength when used. In the case of the carbonated waste concrete fine powder, the SiO ₂ content is similar to that of the pulverized concrete fine powder sample, and the effect of the hydrothermal synthesis reaction is similar, but the size of the calcium carbonate produced by the carbonation reaction is relatively smaller This is because it plays a better role as a filler.

2.5.2 Flexural strength

FIG. 11 is a graph showing the bending strength according to the experimental example of the fine silica powder of the present invention, in which 25 and 50% by weight of the fine powder of silica were replaced with the waste concrete fine powder sample and carbonated waste concrete fine powder, Graph. As a result, the compressive strength was similar to the compressive strength, and the strength was improved when the waste concrete fine powder was used alternatively. However, in the case of 50% by weight of carbonated waste concrete powder, the strength of the specimens replaced with 25% by weight of specimens was lower than that of specimens of 25% by weight.

As a result of the compressive strength, the bending strength showed a positive effect on the strength enhancement when the waste concrete powder was replaced. Among them, the strength enhancement was high when the carbonated waste concrete powder was substituted.

3. Conclusion

In this experiment, the possibility of using carbonated waste concrete powder as a silica material in the mineral carbonation process was evaluated. As a result, the compressive and flexural strengths were lower than those of silica fine powder at high temperature and high pressure condition, but they were equal or higher than those of waste concrete powder.

Based on the following results, it was confirmed that the carbonated waste concrete powder could be used for the same purpose as the existing waste concrete, and it was confirmed that the mineral carbonation process had no harmful effect on the reaction between the binders. These results can have positive effects on both carbon capture and recycling of secondary by-products from the mineral carbonation process.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood, however, that the invention is not to be limited to the specific forms thereof, which are to be considered as being limited to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

Claims (11)

43 to 46 wt% of SiO ₂ , 26 to 30 wt% of CaO, 11 to 13 wt% of Al ₂ O ₃ , 5 to 6 wt% of Fe ₂ O _3, 4 to 4 wt% of K ₂ O, 2 to 3 wt% 70 to 80% by weight of a powdered material containing carbonated waste concrete fine powder composed of 1 to 2% by weight of Na ₂ O, 0.5 to 0.7% by weight of TiO ₂ , 0.1 to 0.2% by weight of MnO and 1.7 to 1.9% The carbonated waste concrete fine powder of mineral carbonation process is characterized by mixing 15 to 25 wt% of water, 1 to 3 wt% of pulp fiber, 0.5 to 2.0 wt% of polypropylene (PP) fiber, and 0.5 to 2.0 wt% Mixed architectural extrusion panel composition. The method according to claim 1,
The powder-
30 to 55 wt.% Of one kind of ordinary Portland cement having an average particle size in the range of 15 to 75 mu m, an SiO2 content of 85 wt.%, And a fine silica powder having an average particle size in the range of 20 to 50 mu m And 15 to 30% by weight of the carbonated waste concrete fine powder having an average particle size in the range of 15 to 75 占 퐉 are mixed with each other. The carbonitrided waste concrete extruded panel Composition. The method according to claim 1,
Preferably,
The present invention relates to an extrusion panel composition for architectural use mixed with carbonated waste concrete fine powder of a mineral carbonation process, characterized in that it is methyl cellulose. The method according to claim 1,
The carbonated waste concrete fine powder may be,
Wherein the waste concrete fine powder is carbonated by supplying carbon dioxide to 5 to 20 wt% of water and 80 to 95 wt% of water in a sludge or remicon supernatant liquid, characterized in that the mineral carbonation process comprises carbonated waste concrete fine powder . delete The method according to claim 1,
The carbonated waste concrete fine powder may be,
Wherein the sponge carrier is introduced into the interior of the extruded panel to increase the carbon dioxide removal rate during carbonation. A manufacturing method of a building extrusion panel using the extrusion panel composition for construction mixed with the carbonated waste concrete fine powder of the mineral carbonation process of claim 1,
43 to 46 wt% of SiO ₂ , 26 to 30 wt% of CaO, 11 to 13 wt% of Al ₂ O ₃ , 5 to 6 wt% of Fe ₂ O _3, 4 to 4 wt% of K ₂ O, 2 to 3 wt% 70 to 80% by weight of a powdered material containing carbonated waste concrete fine powder composed of 1 to 2% by weight of Na ₂ O, 0.5 to 0.7% by weight of TiO ₂ , 0.1 to 0.2% by weight of MnO and 1.7 to 1.9% A mixing step of mixing 15 to 25% by weight of water, 1 to 3% by weight of pulp fibers, 0.5 to 2.0% by weight of polypropylene (PP) fibers and 0.5 to 2.0% by weight of a thickener;
A molding step of extruding the mixture into an extruder; And
And a curing step of curing the molded product. The method for manufacturing the extruded panel for building using the composition for the extrusion panel for construction mixed with the carbonated waste concrete fine powder of mineral carbonation process. 8. The method of claim 7,
In the mixing step,
A primary mixing of 3 to 5 minutes for 70 to 80% by weight of powdered material containing carbonated waste concrete fine powder, 1 to 3% by weight of pulp fibers, 0.5 to 2.0% by weight of polypropylene (PP) And 15 to 25% by weight of water is added thereto and the mixture is mixed for 5 to 7 minutes. The method for manufacturing the extruded panel for building using the composition for extrusion panel for construction mixed with the carbonated waste concrete fine powder. 9. The method of claim 8,
The powder-
30 to 55 wt.% Of one kind of ordinary Portland cement having an average particle size in the range of 15 to 75 mu m, an SiO2 content of 85 wt.%, And a fine silica powder having an average particle size in the range of 20 to 50 mu m And 15 to 30% by weight of the carbonated waste concrete fine powder having an average particle size in the range of 15 to 75 占 퐉 are mixed with each other. The carbonitrided waste concrete extruded panel (Manufacturing method of extruded panel for building using composition). 8. The method of claim 7,
In the curing step,
Wherein the steam curing is carried out at a temperature of 80 ° C and a relative humidity of 100% or an autoclave curing is carried out at 10 atm and 180 ° C, or in a construction using an extruded panel composition for building mixed with carbonated waste concrete fine powder Manufacturing method of extruded panel. An extrusion panel manufactured by a manufacturing method of a building extrusion panel using the extrusion panel composition for construction mixed with the carbonated waste concrete fine powder of the mineral carbonation process of claim 7.

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