KR102247266B1 - Roadside protection plate using eco-friendly photocatalyst color aggregate and its manufacturing method and construction method - Google Patents

Abstract

The present invention relates to a street tree protection plate using an eco-friendly photocatalyst color aggregate, and a manufacturing method and construction method thereof, for manufacturing a street tree protection plate, which improves a city's aesthetics by coating natural stone with beautiful colors harmonizing with surrounding environment and contributes to the growth of street tree by having excellent water permeability, and air purification. The manufacturing method of the street tree protection plate comprises the steps of: preparing a color aggregate by coloring a pigment in a pulverized natural stone, which is at least one selected from basalt, granite, dolomite, silica sand, zircon, and germanium; mixing and stirring the color aggregate, polyurethane resin, and curing accelerator; putting a mixture of agitated color aggregate, polyurethane resin, and curing accelerator into a first molding machine, and press-molding the same into a protective plate body having permeable voids and a through hole through which a root of a street tree penetrates in a central part thereof; demolding the protective plate body molded in the first molding machine from the first molding machine; and curing the protective plate body demolded in the first molding machine.

Description

Roadside protection plate using eco-friendly photocatalyst color aggregate and its manufacturing method and construction method}

The present invention relates to a roadway protection plate, and in particular, an eco-friendly photocatalyst color aggregate that has an air purification function and contributes to the growth of roadside trees with excellent water permeability while improving the aesthetics of the city by coating natural stone with beautiful colors in harmony with the surrounding environment is used. It relates to a street tree protection plate and its manufacturing method and construction method.

Roads, sidewalks, and park roads are planted along the edges to enhance the urban landscape while providing greenery to create a more pleasant environment.

In this way, around roadside trees planted on roads, sidewalks, or park roads, in order to protect the planted roadside trees and prevent the outflow of soil covering the tree roots, a roadside tree protection plate in the form of a "ㅁ" shape, a horseshoe shape, or a circular ring is usually installed. It is installed, as shown in Figure 1, such a street tree protection plate (1) is made of a protective frame installed on the outside and a protective cover in which the tree is located inside the protection frame while being installed inside the protection frame, and is mainly made of a metal material.

As such, the roadway protection plate made of metal is manufactured by cutting a steel plate with a laser processing machine, etc., and then drilling a number of perforated holes, thereby preventing the leakage of soil and allowing rainwater and air to pass through.

However, in the case of manufacturing the street tree protection plate with a metal plate like this, theft accident occurred and corrosion occurred over time, causing a problem of damaging the urban landscape. The problem of such a street tree protection plate was to counter the trend of giving a more lively and bright feeling by allowing the recently constructed sidewalks to have various patterns and colors.

In addition, in the case of the protective frame installed at the periphery of the street tree protection plate, it was almost meaninglessly installed only to formally surround the installation area of the street tree protection plate, and did not play a practical role in protecting the protection cover.

Korean Registered Patent Publication No. 10-1196294 (2012.10.25.)

Accordingly, the present invention has been proposed to solve the problems of the related art as described above, and an object of the present invention is to improve the appearance of the city by applying beautiful colors in harmony with the surrounding environment to the natural stone, and to promote the growth of street trees with excellent water permeability. It is to provide a roadway protection plate using eco-friendly photocatalyst color aggregate, which contributes and has an air purification function, and its manufacturing method and construction method.

In order to achieve the above object, the method for manufacturing a street tree protection plate according to the technical idea of the present invention is to prepare a colored aggregate by coloring a pigment on the aggregate obtained by grinding at least one natural stone selected from basalt, granite, dolomite, silica sand, zircon, and germanium. step; Mixing and stirring the color aggregate, a polyurethane resin, and a curing accelerator; Injecting a mixture of the stirred color aggregate, polyurethane resin, and curing accelerator into a first molding machine to form a protective plate body having permeable pores and having a through hole through which the base of the street tree passes through the center portion; Demolding the protective plate body molded in the first molding machine in a first molding machine; It characterized in that it comprises a; curing the protective plate body demolded in the first molding machine.

Here, 70 to 95% by weight of the color aggregate, 4 to 30% by weight of the polyurethane resin, and 0.001 to 3% by weight of the curing accelerator are mixed, and the protective plate body is easily removed from the first molding machine. It may be characterized in that the water-type release agent is sprayed into the first molding machine before the mixture of the stirred color aggregate, the polyurethane resin, and the curing accelerator is added.

In addition, the step of preparing the color aggregate may include pulverizing the aggregate made of natural stone to an average particle size of 0.5 to 50 mm; Separating the pulverized aggregate by particle size; Mixing and stirring the aggregate separated for each particle size with a pigment; Heating the stirred aggregate and the pigment to color the aggregate; Mixing and stirring an epoxy resin, a UV stabilizer, and a curing accelerator to the colored aggregate to coat the surface; Heat-impregnating the aggregate surface-coated with an epoxy resin, a UV stabilizer, and a curing accelerator; Cooling and drying the heat-impregnated aggregate; It may be characterized in that consisting of; applying a photocatalyst to the cooled and dried aggregate.

In addition, 50 to 90% by weight of the aggregate, 1 to 10% by weight of the pigment, 1 to 30% of the epoxy resin, 0.1 to 5% of the UV stabilizer, 0.1 to 5% by weight of the curing accelerator are mixed, and the pigment for the aggregate In order to increase the coloring efficiency, the aggregate may be cleaned before mixing the aggregate and the pigment, and the surface thereof may be subjected to plasma treatment.

In addition, in the step of impregnating the aggregate surface-coated with the epoxy resin, UV stabilizer, and curing accelerator by heating, the first heating to a temperature of 300 to 780°C and then secondary heating to a temperature of 300 to 780°C is performed. It can be characterized.

In addition, manufacturing a mortar for forming a container-shaped protective plate frame body surrounding the lower surface and side surfaces of the protective plate body and having a plurality of permeable holes formed in the bottom layer; Molding the protective plate frame body in the shape of a container surrounding the lower surface and the side surface of the protective plate body and having a plurality of permeable holes formed in the bottom layer in a second molding machine; Demolding and curing the protective plate frame body molded in the second molding machine in a second molding machine; Applying a photocatalyst to the cured protective plate frame; The step of incorporating the protective plate frame body with the protective plate body further includes, wherein the mortar is 49 to 55% by weight of blast furnace slag cement, 0.05 to 0.2% by weight of PE blend, 0.2 to 1.5% by weight of polymer, 0.02 to 0.1% by weight of thickener, It may be characterized in that it contains 0.05 to 0.2% by weight of the foaming agent and 40 to 50% by weight of fine aggregates.

In addition, to the mortar for molding the protective plate frame, 3 to 6 cm of short fiber PE plying yarn is added in a uniformly dispersed form, but in order to provide a single fiber PE plying yarn with both ends bent in a ring shape, tensile force is applied to the PE plying string. In the process of applying and applying a tensile force to the PE braided string, the epoxy is first sprayed and applied, and before the applied epoxy is cured, inorganic particles having a particle diameter of 10 to 100 μm are scattered on the surface of the PE braided string. It may be characterized in that the process of forming the protrusions by and the process of shortening the PE braided string into several strands are carried out step by step.

In addition, foamed urethane is uniformly applied to the lower side of the bottom layer of the protective plate frame to form an impact relief layer, and communicates with the permeable holes formed in the bottom layer of the protective plate frame before the foamed urethane of the shock absorbing layer is cured. It may be characterized in that the strength reinforcing layer is formed by bonding synthetic wood having through holes.

On the other hand, in the case of a street tree protection plate according to the present invention, it is manufactured by the above-described tree tree protection plate manufacturing method and is characterized in its technical configuration.

The roadway protection plate using the environmental photocatalytic color aggregate according to the present invention, and its manufacturing method and construction method, improve the aesthetics of the city by applying beautiful colors in harmony with the surrounding environment to the natural stone, and have excellent water permeability, contributing to the promotion of the growth of roadside trees, and It is equipped with a purification function, and it is possible to manufacture and construct a roadway protection plate that protects the roadside trees from the smoke generated by vehicles running on the road and makes the surroundings comfortable.

In addition, the present invention is made of eco-friendly mortar that does not use Portland cement even the protection plate frame provided to reinforce the protection plate body made of colored aggregates, so that an eco-friendly product can be realized together with the protection plate body made of eco-friendly colored aggregates. have.

In addition, the present invention adds a ring-shaped short fiber PE ply to the mortar used for manufacturing the protective plate frame, and forms an impact mitigating layer of a foamed urethane material and a strength reinforcing layer of a synthetic wood material bonded to the bottom layer. It is possible to implement a product that can effectively prevent damage.

Meanwhile, the method of constructing a roadway protection plate according to the present invention comprises the steps of preparing a colored aggregate by coloring a pigment in an aggregate obtained by grinding at least one natural stone selected from basalt, granite, dolomite, silica sand, zircon, and germanium; Mixing and stirring the color aggregate, a polyurethane resin, and a curing accelerator; Injecting a mixture of the stirred color aggregate, polyurethane resin, and curing accelerator into a first molding machine to form a protective plate body having permeable pores and having a through hole through which the base of the street tree passes through the center portion; Demolding the protective plate body molded in the first molding machine in a first molding machine; And curing the protective plate main body demolded in the first molding machine; a first step of preparing a street tree protective plate provided with the protective plate main body manufactured through; A second step of compacting the ground when the roadside trees are to be planted and forming a seating groove in which the roadside tree protection plate is to be seated; A third step of mounting the roadway protection plate in the mounting groove formed in the second step; It characterized in that it comprises a; a fourth step of finishing the arrangement after the roadway protection plate is seated in the seating groove.

Here, in the first step, manufacturing a mortar for forming a container-shaped protective plate frame having a plurality of permeable holes in the bottom layer; Molding the protective plate frame body in the shape of a container surrounding the lower surface and the side surface of the protective plate body and having a plurality of permeable holes formed in the bottom layer in a second molding machine; Demolding and curing the protective plate frame body molded in the second molding machine in a second molding machine; Applying a photocatalyst to the cured protective plate frame; by uniformly applying a foam urethane to the lower side of the bottom layer of the protective plate frame manufactured through a certain thickness to form an impact mitigating layer to alleviate external impact, and the applied foam urethane Before being cured, a strength reinforcing layer is further formed by joining synthetic wood having through holes in the bottom layer of the protective plate frame body to communicate with the permeable holes formed in the bottom layer of the protective plate frame body, and then combining the protective plate frame body to surround the lower surface and the side surfaces of the protective plate body. It may be characterized by preparing a roadway protection plate.

1 is a reference diagram for explaining a roadway protection plate according to the prior art
2 is a perspective view of a roadway protection plate according to an embodiment of the present invention
3 is an exploded perspective view of a roadway protection plate according to an embodiment of the present invention
4 is a partial cross-sectional view for explaining the internal configuration of the bottom of the protective plate frame body in the street tree protective plate according to an embodiment of the present invention
Figure 5 is a cross-sectional reference view for explaining the internal configuration of the protective plate frame in the roadway protective plate according to an embodiment of the present invention
6 is a flow chart for explaining a manufacturing method for manufacturing the protective plate main body of the roadway protective plate according to an embodiment of the present invention
Figure 7 is a flow chart for explaining in detail the manufacturing step of the color aggregate in the manufacturing method of the protective plate main body of the roadway protective plate according to an embodiment of the present invention
Figure 8 is a flow chart for explaining a manufacturing method for manufacturing the protective plate frame of the roadway protective plate according to an embodiment of the present invention
9 is a block diagram of a manufacturing apparatus for implementing a method for manufacturing a roadway protection plate according to an embodiment of the present invention
10 is an arrangement state diagram showing an arrangement state of a manufacturing apparatus for implementing a method for manufacturing a roadway protection plate according to an embodiment of the present invention
11 is a side view for explaining the configuration of a foreign substance remover among a manufacturing apparatus for implementing a method for manufacturing a roadway protection plate according to an embodiment of the present invention
12 and 13A to 13D are a series of reference diagrams for explaining the manufacturing process of short-fiber PE ply yarn used in the method for manufacturing a roadway protection plate according to an embodiment of the present invention.

With reference to the accompanying drawings will be described in detail with respect to the manufacturing method of the roadway protection plate according to embodiments of the present invention. Since the present invention can be modified in various ways and has various forms, specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific form of disclosure, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention. In describing each drawing, similar reference numerals have been used for similar elements. In the accompanying drawings, dimensions of structures are shown to be enlarged than actual for clarity of the present invention, or reduced than actual to understand a schematic configuration.

In addition, terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. Meanwhile, unless otherwise defined, all terms used herein including technical or scientific terms have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in the present application. Does not.

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2 is a perspective view of a roadway protection plate according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of a roadway protection plate according to an embodiment of the present invention, and FIG. 4 is a view of the bottom of the protection plate frame body in the roadway protection plate according to the embodiment of the present invention. It is a partial cross-sectional view for explaining the internal configuration. And Figure 5 is a cross-sectional reference view for explaining the internal configuration of the protective plate frame in the roadway protective plate according to an embodiment of the present invention.

As shown, the street tree protection plate 300 according to the embodiment of the present invention covers the protection plate body 310 formed of a color aggregate and the protection plate body 310 while protecting it from being damaged while providing a safe and convenient construction. It is made of a combination of the protective plate frame body 320 to enable. These protective plate body 310 and protective plate frame body 320 are manufactured and constructed in a divided form as shown in the drawings in preparation for repair or removal.

The protective plate main body 310 has a plate-shaped body such as a disk or a square plate, and a horizontal tree through hole 311 through which the tree base passes is formed in a large center.

Note that the protective plate main body 310 is formed of a color aggregate. To this end, a color aggregate is prepared by coloring a pigment in the aggregate obtained by pulverizing at least one natural stone selected from basalt, granite, dolomite, silica sand, zircon, and germanium, followed by mixing and stirring the color aggregate, polyurethane resin, and a curing accelerator, It is prepared by pressing a mixture of agitated color aggregate, polyurethane resin, and curing accelerator. As such, when the protective plate body 310 is made of a color aggregate, it has pores that can be naturally permeable, and creates a unique color of the color aggregate that is in harmony with the surrounding environment.

In addition, a photocatalyst is applied to the surface of the color aggregate constituting the protective plate body 310 _{to remove contamination of nitrogen oxides (NO X} ) caused by exhaust gas generated from a vehicle traveling on a road and purify the air. As a result, it is planted along the road to harmonize with the street trees that not only save the city's aesthetics, but also purify the air.

In the case of the protective plate body 310, it may be possible to construct and construct a street tree protection plate alone without the protection plate frame body 320, and may be constructed by configuring a street tree protection plate in a form combined with the protection plate frame body 320. However, in the present invention, since the protection plate body 310 has the advantages of incorporating the protection plate frame body 320, the description will be made with consideration of the street tree protection plate in the form of a combination.

The protective plate frame body 320 covers the plate-shaped protective plate body 310 manufactured by pressing the color aggregate to protect it from being damaged, while helping to facilitate construction in a standardized form. The protective plate frame body 320 surrounds the lower surface and side surfaces of the protective plate body 310 and is formed of a container-shaped body in which a plurality of permeable holes 321b are formed in the bottom layer 321.

Mortar 350 for manufacturing the protective plate frame 320 is blast furnace slag cement 49-55% by weight, PE laminated 0.05-0.2% by weight, polymer 0.2-1.5% by weight, thickener 0.02 to 0.1% by weight, foaming agent 0.05-0.2 It can be noted that Portland cement, which is toxic, is not used at all, consisting of 40 to 50% by weight of fine aggregates and% by weight. In addition, the PE ply yarn included in the mortar 350 is provided with short fiber PE plying yarns 351 and 352 having a length of 3 to 6 cm with both ends bent in a ring shape to increase bonding and tensile strength as shown in FIG. 5 to be uniformly dispersed. . Epoxy layer 353a formed by coating epoxy, a material that improves bonding properties with other components, particularly mortar, on the surfaces of short-fiber PE braids 351 and 352, and surface bonding and flame retardancy to the epoxy layer 353a For improvement, a plurality of inorganic particle protrusions 353b are formed. When such a unique single fiber PE plying yarn (351,352) is included in the mortar, a number of single fiber PE plying yarns (351, 352) are entangled with each other by both ends bent in a ring shape. ).

Further, the impact relief layer 323 formed by uniformly applying foamed urethane to the lower side of the bottom layer 321 of the protective plate frame 320 to a predetermined thickness, and before the foamed urethane of the impact relief layer 323 is cured, the A strength reinforcing layer 324 formed by bonding synthetic wood having a through hole communicating with a permeable hole 321b formed in the bottom layer 321 of the protective plate frame 320 is further provided.

In this way, the impact relief layer 323 interposed between the bottom layer 321 of the protection plate frame body 320 and the strength reinforcing layer 324 is formed of urethane foam, and the bottom layer 321 of the protection plate frame body 320 made of mortar and Although the surface texture of the strength reinforcing layer 324 made of synthetic wood is heterogeneous, it helps to be smoothly bonded to each other. In addition, it minimizes the impact applied from the outside and the resulting damage.

In the case of the strength reinforcing layer 324, the protection plate frame 320 is momentarily deformed during or after construction, thereby minimizing the problem of being easily broken or damaged.

Continuing below, a method of manufacturing a roadway protection plate according to an embodiment of the present invention will be described with reference to FIGS. 6 to 12 and 13A to 13D.

The method of manufacturing a roadway protection plate according to an embodiment of the present invention includes, first, a color aggregate manufacturing step (S11), a color aggregate and a polyurethane resin mixing stirring step (S12), as shown in FIG. 6 in order to manufacture the protective plate body 310, It includes a release agent injection step (S13), a pressure molding step (S14), a demoulding step (S15), and a curing step (S16).

In the color aggregate manufacturing step (S11), an eco-friendly color aggregate is manufactured by coloring a pigment on the aggregate obtained by pulverizing natural stone. In the case of colored aggregates manufactured at this stage, it emits a beautiful color with almost no discoloration or discoloration based on semi-permanent natural stone, but there is no pollution due to whitening or hydration reaction of cement products, and it removes pollution from automobile exhaust gas and removes air. As shown in Figs. 9 and 10, as the aggregate is transferred by the conveyor, which is the transfer device 190, the first pulverizer 110a and the second pulverizer 110b, foreign matter remover 120, and particle size Star separator 130, plasma processing device 140, first stirrer 150a and second stirrer 150b, coloring furnace 160a, heating furnace 160b, cooling dryer 170, first photocatalyst coating device It is manufactured through 180. The color aggregate manufacturing step will be described in detail later.

In the stirring step of mixing the color aggregate and the polyurethane resin (S12), the color aggregate prepared in the previous step, the two-component polyurethane resin, and the curing accelerator are mixed and stirred in the third agitator 210. At this time, 70 to 95% by weight of the color aggregate, 4 to 30% by weight of the polyurethane resin, and 0.001 to 3% by weight of the curing accelerator are mixed. Here, the polyurethane resin mixed with the colored aggregate completely replaces the cement and serves to bind the colored aggregate with high strength, and the curing accelerator accelerates the curing of the polyurethane resin to shorten the curing time.

In the releasing agent spraying step (S12), the water-type releasing agent is sprayed into the first molding machine 220 before the mixture of the stirred color aggregate, polyurethane resin, and curing accelerator is added to the first molding machine 220. Here, the moisture release agent is intensively sprayed onto the upper and lower molds of the first molding machine 220. This process prevents adhesion of the polyurethane resin and the color aggregate to the first molding machine 220 to facilitate the removal of the protective plate body 310 molded from the first molding machine 220, and helps to reduce the overall process time. Becomes.

In the pressure molding step (S14), a mixture of the agitated color aggregate, polyurethane resin, and curing accelerator is put into the first molding machine 220 and then pressurized to form the protective plate body 310.

In the demolding step (S15), the protective plate body 310 molded in the first molding machine 220 is demolded from the first molding machine 220. The demolding of the protective plate body 310 is easily performed without the problem of adhesion of the polyurethane resin or the color aggregate due to the moisture release agent sprayed in the previous step.

In the curing step (S16), the protective plate body 310 removed from the first molding machine 220 is gradually passed through the first curing machine 230 installed along the conveyor, which is the transfer device 190, or stored for a sufficient time. It will be cured. The protective plate body 310 cured in this way is measured and packaged while passing through the packaging machine 240. Here, the first curing device 230 is configured in a form in which a plurality of cooling fans are installed, and the cooling fan may be selectively used to control a curing time.

As a result, water permeability is excellent, and there is no discoloration or discoloration, so it can be used semi-permanently, so that maintenance costs can be reduced, and there is no problem of contamination due to the use of cement while contributing to prevention of groundwater depletion and promotion of the growth of trees, and air purification. It is possible to obtain an eco-friendly non-toxic protective plate body 310 equipped with functions.

In the following, the color aggregate manufacturing step (S11) will be described in more detail.

The color aggregate manufacturing step (S11), as shown in FIG. 7, the aggregate crushing step (S101), the foreign matter removing step (S102), the particle size separation step (S103), the cleaning step (S104), the plasma treatment step (S105) ), pigment mixing and stirring step (S106), heating coloring step (S107), protective agent mixing and stirring step (S108), protective agent heating impregnation step (S109), cooling drying step (S110), photocatalyst coating step (S111) It is done by doing.

In the aggregate crushing step (S101), an aggregate composed of one or more of natural stones selected from basalt, granite, dolomite, silica sand, zircon, and germanium is pulverized to an average particle size of 0.5 to 50 mm. To this end, it is possible to pulverize one pulverizer until the aggregate is required, but if the environment permits, the first pulverizer 110a and the second pulverizer 110b are serially connected as shown in Figs. 9 and 10. It is preferable in terms of crushing quality to pulverize the aggregate in stages by installing a furnace.

In the foreign matter removing step (S102), unnecessary fine powders and various foreign matters included together with the pulverized aggregate are removed. For this purpose, as shown in FIG. 11, while the foreign material remover 120 vibrates and lifts the aggregate (S) crushed by the vibration plate 121, the blower 123 applies the blowing pressure on one side and the duct 124 on the other side. A sucks and removes the foreign material E1 blown by the blowing pressure, and the electromagnet 125 adsorbs and removes the metallic foreign material E2 from the upper side. This process of removing foreign substances is performed by adjusting the time according to the amount of the pulverized aggregate (S). For reference, the vibration plate 121 is installed in a form surrounding a fence 121a composed of a mesh network along the periphery of the upper surface to block the separation of the aggregate (S) from the vibration plate 121, while the blowing pressure or the electromagnet by the blower 123 Allow the magnetic force by (125).

In the particle size separation step (S103), the operation of separating the pulverized aggregate by particle size is performed. To this end, the separator 130 is provided with a plurality of meshes made of pores of different sizes, or a bar for each particle size to filter and separate the pulverized aggregate by particle size.

In the washing step (S104), the aggregate separated by particle size is washed by spraying high-pressure steam or washing water. As a result, it is possible to remove even the fine powder remaining on the surface of the aggregate without being removed in the preceding foreign matter removing step (S102). This process is preceded in order to increase the efficiency of the subsequent plasma treatment operation.

In the plasma treatment step (S105), in order to increase the coloring efficiency of the pigment for the aggregate, the surface of the cleaned aggregate is subjected to plasma treatment before mixing the aggregate and the pigment. To this end, the atmospheric pressure plasma processing device 140 can be simply installed on a line without the need to implement it in a vacuum device or a large-sized mechanical device. At this time, at room temperature, the discharge area is 3kw, and the amount of nitrogen and oxygen gas is adjusted to about 60:1 for plasma generation, and the transport speed of the aggregate is about 1 to 2m per minute, while the plasma treatment time can be set to 1 to 5 minutes. . By such plasma treatment, an etching phenomenon appears on the surface of the aggregate, which was initially smooth, and micro-craters in a rough form are formed, thereby increasing the value of the root mean square (RMS) roughness. This provides conditions in which the binding of the pigment component to the aggregate surface can be easily achieved. If the work of heating and coloring by mixing and stirring the aggregate and the pigment without the above-described plasma treatment step (S105) is performed immediately, the amount of pigment should be increased, and the time required for mixing and stirring and heating coloring should be significantly increased. There are difficulties. However, through such plasma treatment, the amount of pigment and the time required for coloring can be drastically reduced, and the overall coloring quality is also improved.

In the pigment mixing and stirring step (S106), the plasma-treated aggregate and the pigment are mixed and sufficiently stirred in a dedicated first stirrer 150a. Thereby, the pigment is uniformly dispersed and applied on the surface of the aggregate in a sufficient amount.

In the heating coloring step (S107), the aggregate and the pigment stirred in the first stirrer 150a are heated in the coloring furnace 160a to stably color the pigment in the aggregate. At this time, the heating temperature is suitable in the range of 200℃ or higher to 1000℃.

In the protective agent mixing and stirring step (S108), an epoxy resin, a UV stabilizer, and a curing accelerator are mixed and stirred in the colored aggregate to coat the surface. The use of the epoxy resin, UV stabilizer, and curing accelerator is to protect the colored pigments from flying away from the aggregate and to preserve the gloss, where these are not applied together in the coloring step together with the pigment, but are applied in stages. . As a result, when coloring the pigment, it has the advantage that it is possible to perform coloring by setting the heating temperature more freely without taking into consideration the limitation of heating due to the epoxy resin, and the pigment is protected by covering the surface after the pigment is completely colored. It is also preferable in terms of protecting the surface of the colored aggregate. Here, 50 to 90% by weight of the aggregate, 1 to 10% by weight of pigment, 1 to 30% of epoxy resin, 0.1 to 5% of UV stabilizer, and 0.1 to 5% by weight of a curing accelerator are mixed.

In the protective agent heating impregnation step (S109), an aggregate material coated with an epoxy resin, a UV stabilizer, and a curing accelerator is added to the heating furnace 160b to be impregnated. At this time, the first heating is performed at a temperature of 300 to 780°C, followed by secondary heating at a temperature of 300 to 780°C.

In the cooling drying step (S110), the aggregate impregnated with the protective agent is cooled and dried in the heating furnace 160b. To this end, as shown in FIG. 5, the aggregate heated in the heating furnace 160b is passed through a cooling dryer 170 installed long along a conveyor, which is a conveying device 190. The cooling dryer 170 is composed of a box-shaped body 171 that provides a passage through which a conveyor for transporting aggregates can pass, and a plurality of blowing fans 172 arranged along the conveyor in the box-shaped body 171 to be heated. It effectively cools and dries the aggregated material.

In the photocatalyst coating step (S111), the photocatalyst is applied in an amount of 20 to 100L per ^{m 2} using the first photocatalyst coating device 180 including a high-pressure sprayer on the cooled and dried aggregate. _{Although titanium oxide (TiO 2} ) is considered as the photocatalyst, it may be provided as a composite of titanium oxide and tin oxide to which metal ions are added, or a composite of a titanium oxide and metal tungsten oxide junction structure to increase the efficiency in visible light. I can. For reference, when the first photocatalyst coating device 180 is passed, the production of the color aggregate is completed.

When the photocatalyst coating step (S111) is performed in this way, it is possible to remove contamination of _{nitrogen oxides (NO X) caused by vehicle exhaust gas and purify the air.}

Subsequently, a system for manufacturing a street tree protection plate according to an embodiment of the present invention will be described below.

As shown in FIGS. 9 to 11, the tree-lined protective plate manufacturing system includes a first crusher 110a and a second crusher 110b for manufacturing the protective plate body 310, a foreign substance remover 120, and a separator 130 for each particle size. ), a plasma processing device 140, a first stirrer 150a and a second stirrer 150b, a coloring furnace 160a, a heating furnace 160b, a cooling dryer 170, a first photocatalyst coating device 180, A fourth stirrer 240 for manufacturing the protective plate frame body 320 together with the transfer device 190, the third stirrer 210, the first molding machine 220, and the first curing machine 230, and the second molding machine 250 ), a second curing device 260 and a second photocatalyst applying device 270, and an assembly portion 280 for incorporating the manufactured protective plate body 310 and the protective plate frame 320 is additionally provided. Accordingly, a series of processes for manufacturing an eco-friendly, non-toxic street tree protection plate are performed.

Hereinafter, each of the above components will be described in more detail.

The first and second pulverizers 110a and 110b serve to pulverize an aggregate composed of one or more natural stones selected from basalt, granite, dolomite, silica sand, zircon, and germanium to an average particle size of 0.5 to 50 mm. Here, when the first grinder 110a and the second grinder 110b are installed in series and configured to pulverize the aggregate in stages, the load applied to the grinder can be reduced, and it is also preferable in terms of grinding quality of the aggregate.

The foreign material remover 120 serves to remove unnecessary fine powders and various foreign materials included together with the pulverized aggregate. As shown in FIG. 11, the foreign matter remover 120 vibrates and lifts the pulverized aggregate while being supported by the actuator 122, and a blower that applies blowing pressure from one side of the vibration plate 121 (123), a duct 124 that sucks and removes foreign substances blown by the blowing pressure from the other side of the vibration plate 121, and a metallic foreign substance mixed with the pulverized aggregate installed on the upper side of the vibration plate 121. It includes an electromagnet 125 that is adsorbed and removed. According to this configuration, while the foreign matter remover 120 vibrates and lifts the aggregate (S) crushed by the vibration plate 121, the blower 123 applies the blowing pressure on one side, and the duct 124 applies the blowing pressure on the other side. The foreign matter E1 blown by is sucked and removed, and from the upper side, the electromagnet 125 adsorbs and removes the metallic foreign matter E2. This makes it possible to quickly remove various foreign substances mixed with the aggregate. On the other hand, the diaphragm 121 is installed in a form surrounding a fence 121a composed of a mesh network along the upper surface. This serves to allow magnetic force by the electromagnet 125 because it is the blowing pressure by the blower 123 while blocking the aggregate (S) from being separated from the vibration plate 121.

The particle size separator 130 serves to separate the pulverized aggregate by particle size. To this end, the separator 130 for each particle size is provided with a plurality of meshes made of pores of different sizes or a bar for each particle size to filter and separate the pulverized aggregate for each particle size.

The plasma treatment apparatus 140 serves to perform plasma treatment on the surface of the cleaned aggregate before mixing the aggregate and the pigment in order to increase the coloring efficiency of the pigment with respect to the aggregate. To this end, the atmospheric pressure plasma processing device 140 can be simply installed on a line without the need to implement it in a vacuum device or a large-sized mechanical device. When such a plasma processing apparatus 140 is provided, micro-craters are formed on the surface of the aggregate, thereby increasing a root mean square (RMS) roughness value. This provides conditions in which the binding of the pigment component to the aggregate surface can be easily achieved.

The first stirrer 150a serves to mix and sufficiently stir the plasma-treated aggregate and pigment. This allows the pigment to be uniformly dispersed and applied on the surface of the aggregate in a sufficient amount.

The coloring furnace 160a serves to stably color the pigment in the aggregate by heating the aggregate and the pigment stirred in the first stirrer 150a in the coloring furnace 160a. The heating temperature made in the coloring furnace 160a is suitable in a range of 200°C or higher to 1000°C.

The second stirrer 150b serves to coat the surface by mixing and stirring an epoxy resin, a UV stabilizer, and a curing accelerator in the colored aggregate.

The heating furnace 160b serves to impregnate the aggregate with an epoxy resin, UV stabilizer, and curing accelerator surface-coated into the heating furnace 160b. Although the heating furnace 160b is provided with the same type as the coloring furnace 160a, it is preferable to provide each of the heating furnaces 160b because they handle different materials.

The cooling dryer 170 serves to cool and dry the aggregate impregnated with the protective agent in the heating furnace 160b. To this end, the cooling dryer 170 passes the aggregate heated in the heating furnace 160b through the cooling dryer 170 installed long along the conveyor, which is the conveying device 190, as shown in FIG. 10. The cooling dryer 170 is composed of a box-shaped body 171 providing a passage through which a conveyor for transporting aggregate can pass, and a plurality of blowing fans 172 arranged along the conveyor in the box-shaped body 171. According to the configuration of the cooling dryer 170, it is possible to quickly cool and dry the heated aggregate.

The first photocatalyst coating device 180 has a plurality of high-pressure sprayers capable of spraying the photocatalyst at high pressure therein, and the photocatalyst is applied in an amount of 20 to 100L per ^{m 2.} _{Although titanium oxide (TiO 2} ) is considered as the photocatalyst, it may be provided as a composite of titanium oxide and tin oxide to which metal ions are added, or a composite of a titanium oxide and metal tungsten oxide junction structure to increase the efficiency in visible light. May be. When the first photocatalyst coating device 180 is passed, it can be said that the production of the color aggregate is completed.

The third stirrer 210 mixes and stirs the color aggregate manufactured through the above facilities, a two-component polyurethane resin, and a curing accelerator. At this time, 70 to 95% by weight of the color aggregate, 4 to 30% by weight of the polyurethane resin, and 0.001 to 3% by weight of the curing accelerator are mixed. Here, the polyurethane resin mixed with the colored aggregate completely replaces the cement and serves to bind the colored aggregate with high strength, and the curing accelerator accelerates the curing of the polyurethane resin to shorten the curing time.

The first molding machine 220 pressurizes the mixture of color aggregate, polyurethane resin, and curing accelerator stirred in the third stirrer 210 into the protective plate body 310. The first molding machine 220 is pre-sprayed with a moisture-type release agent before pressing, so as to prevent a problem in which the polyurethane resin or color aggregate is adhered.

The first curing machine 230 gradually passes the protective plate body 310 removed from the first molding machine 220 through the first curing machine 230 installed along the conveyor, which is the transfer device 190, or stored for a sufficient time. It plays a role of curing while doing. The first curing machine 230 is provided with a plurality of cooling fans to adjust the curing speed of the protective plate body 310 after the molding has been completed.

The controller plays a role of overall controlling the processing and transfer process of the aggregate in connection with the various devices mentioned above, including the transfer device 190.

As described above, the apparatus for manufacturing a street tree protection plate according to an embodiment of the present invention smoothly performs a series of original processes for manufacturing the eco-friendly non-toxic protection plate body 310 by appropriately arranging the above-mentioned various devices.

As a result, water permeability is excellent, and there is no discoloration or discoloration, so it is possible to use semi-permanently, thereby reducing maintenance costs. It contributes to prevention of groundwater depletion and promotion of the growth of trees, and there is no problem of contamination due to the use of cement, and it is not suitable for photocatalysts. By this, it is possible to obtain an eco-friendly non-toxic protective plate body 310 equipped with an air purification function.

On the other hand, as shown in Fig. 8 in order to manufacture the protective plate frame 320, a mortar manufacturing step (S21), a mortar stirring step (S22), a pressure molding step (S23), a demoulding step (S24), a curing step (S25) and It includes a photocatalyst coating step (S26).

In the mortar manufacturing step (S21), 49 to 55% by weight of blast furnace slag cement, 0.05 to 0.2% by weight of PE blend, 0.2 to 1.5% by weight of polymer, 0.02 to 0.1% by weight of thickener, 0.05 to 0.2% by weight of foaming agent, and 40 to 50 of fine aggregates To prepare a mortar containing% weight. It can be noted that this composition does not use any toxic Portland cement.

Herein, as shown in FIG. 5, the PE ply yarn is provided as short fiber PE ply yarns 351 and 352 having a length of 3 to 6 cm in which both ends are bent in a ring shape to increase bonding and tensile strength, and is added in a uniformly dispersed form.

Here, the short-fiber PE ply yarns (351, 352) with both ends bent in a ring shape apply a tensile force to the high elastic PE ply yarns (35) used as fishing lines in the market, and in that state, the PE ply yarns (35) are multiplied. It is produced by a unique process that cuts it shortly. To this end, as shown in FIG. 12, several rows of PE plying strings 35 are simultaneously stretched by the holder W1, and in that state, several blades W4a are formed at intervals of 3 to 6 cm as shown in FIGS. 13C and 13D. It is cut with an excitation bite (W4). At this time, before cutting the PE braid file 35, apply the epoxy by spraying the epoxy while moving the spray nozzle W2 as shown in FIG. 13A, and before the applied epoxy is cured, 10 to 100 as shown in FIG. 13B. The process of forming protrusions 353b by inorganic particles on the surface of the PE braided string 35 by spraying aluminosilicate with a particle diameter of ㅅm with a spray (W3) is additionally performed in the middle.

As a result, as shown in FIG. 5, the epoxy layer 353a formed by applying epoxy, which is a material that improves bonding properties with other components of the mortar, is applied to the surface of the short-fiber PE ply yarns 351 and 352, and the epoxy layer 353a. In order to improve surface adhesion and flame retardancy, a number of inorganic particle protrusions 353b are formed to form short fiber PE plying yarns 351 and 352 having a unique shape. When such unique single fiber PE plying yarns 351 and 352 are included in the mortar, numerous single fiber PE plying yarns 351 and 352 are entangled with each other by both ends bent in a ring shape, thereby contributing to having an integrated internal structure as a whole. In this way, the bonding property of the mortar forming the protection plate frame body 320 is improved by the structural characteristics centering on the single fiber PE plying yarns 351 and 352, and the tensile strength of the protection plate frame body 320 formed therefrom is improved.

Here, in the case of the single-fiber PE plying yarns 351 and 352, it is preferable not to provide a single length, but to provide two types of short and long relative lengths. While the length of the short-fiber PE ply (351,352) does not exceed the range of 3 to 6 cm, one type is the first short-fiber PE ply yarn 351 having a length of 3 to 4 cm, and the other type has a length of 5 to 6 cm. It is provided with a second short fiber PE ply yarn (352). As a result, the short-fiber PE plying yarns 351 and 352 can be uniformly diffused in the same space and added at a higher density. In order to provide the short-fiber PE ply yarns 351 and 352 as the first short-fiber PE plying yarn 351 and the second short-fiber PE plying yarn 352 having different lengths, the bite cuts the PE yarns When preparing the ply yarns 351 and 352, simply use two types of bites with different blade intervals.

In the case of blast furnace slag cement in the mortar, it contains blast furnace slag as the largest component by weight, and it is possible to generate _{ethrinzite (3CaO·Al 2} O ₃ ·3CaSO ₄ ·32H _{2 O) through hydration reaction.} It contains phosphorus, lime and anhydrous gypsum as essential ingredients.

Looking specifically at the components of the blast furnace slag cement, 38 to 70% by weight of blast furnace slag, 5 to 15% by weight of gypsum, 6 to 20% by weight of auin, 0.3 to 2.5% by weight of water reducing agent or superplasticizer, and the balance Portland cement Including, but the Portland cement is included in an amount of less than 13% by weight so as to be less than 8% by weight of the total mortar composition, so that practical cementation of Portland cement can be achieved.

In the mortar stirring step (S22), the mortar prepared in the previous step is stirred in the fourth stirrer 240. At this time, the added short fiber PE plying yarns 351 and 352 are uniformly dispersed in the mortar.

In the press molding step (S23), the mortar prepared in the previous step and then stirred is introduced into the second molding machine 250 and then pressurized to form the protective plate frame body 320.

In the demolding step (S24), the protective plate frame body 320 formed in the second molding machine 250 is demolded from the second molding machine 250.

In the curing step (S25), while passing the protective plate frame 320 removed from the second molding machine 250 gradually through the second curing machine 260 installed along the conveyor, which is the transfer device 190, or storing it for a sufficient time. It will be cured.

In the photocatalyst coating step (S26), the photocatalyst is sprayed at high pressure on the surface of the cured protective plate frame body 320 by using the second photocatalyst coating device 270. Like the color aggregate above, the photocatalyst is applied in an amount of 20 to 100L per ^{m 2.} _{Although titanium oxide (TiO 2} ) is considered as the photocatalyst, it may be provided as a composite of titanium oxide and tin oxide to which metal ions are added, or a composite of a titanium oxide and metal tungsten oxide junction structure to increase the efficiency in visible light. May be. When the photocatalyst application step is completed, it can be said that the manufacturing of the protective plate frame body 320 is completed.

When the protection plate frame body 320 is combined with the protection plate body 310 in the assembly unit 280, the street tree protection plate 300 according to an embodiment of the present invention is completed.

As a result, it is possible to obtain a roadway protection plate using eco-friendly photocatalytic color aggregates with excellent water permeability, contributing to the promotion of growth of street trees, and air purification functions, while improving the aesthetics of the city by coating natural stone with beautiful colors in harmony with the surrounding environment.

The area A1 for manufacturing the protective plate frame body 320 is provided in the vicinity of the area for manufacturing the protective plate body 310, as shown in FIG. 10, and the fourth agitator 240, the second molding machine 250, It consists of a second curing device 260 and a second photocatalyst coating device 270.

The fourth stirrer 240 serves to uniformly mix the components of the mortar, and in particular, the short fiber PE ply yarns 351 and 352 are uniformly dispersed in the mortar.

The second molding machine 250 pressurizes the mortar stirred in the fourth stirrer 240 into the protective plate frame body 320.

The second curing machine 260 gradually passes the protective plate frame 320 removed from the second molding machine 250 through the second curing machine 260 installed along the conveyor, which is the transfer device 190, or stored for a sufficient time. It plays a role of curing while doing. The second curing machine 260 includes a plurality of cooling fans to adjust the curing speed of the molded protective plate frame 320.

The second photocatalyst coating device 270, like the first photocatalyst coating device 180, has a plurality of high-pressure sprayers capable of injecting a photocatalyst at high pressure therein, and the photocatalyst in an amount of 20 to 100L per ^{m 2} It will be applied. _{Although titanium oxide (TiO 2} ) is considered as the photocatalyst, it may be provided as a composite of titanium oxide and tin oxide to which metal ions are added, or a composite of a titanium oxide and metal tungsten oxide junction structure to increase the efficiency in visible light. May be. When the second photocatalyst coating device 270 is passed, it can be said that the protective plate frame body 320 has been manufactured.

Continuing below, a brief description will be given of the construction method of constructing the street tree protection plate manufactured as above.

First, a first step of preparing the street tree protection plate 300 is performed by the method described above. Here, the street tree protection plate 300 may be constructed and constructed as the protection plate body 310 alone, or may be constructed in a form in which the protection plate body 310 and the protection plate frame body 320 are combined.

First, in the case of the protective plate body 310, as mentioned above, preparing a colored aggregate by coloring a pigment in the aggregate obtained by grinding at least one natural stone selected from basalt, granite, dolomite, silica sand, zircon, germanium; Mixing and stirring the color aggregate, a polyurethane resin, and a curing accelerator; Injecting a mixture of the stirred color aggregate, polyurethane resin, and curing accelerator into a first molding machine to form a protective plate body 310 having permeable pores and having a through-hole through which the base of the street tree passes through the center portion; Demolding the protective plate body 310 molded in the first molding machine in a first molding machine; And curing the protective plate body 310 demolded in the first molding machine.

And in the case of the protective plate frame body 320, also as described above, the steps of producing a mortar for molding the protective plate frame body 320 in the shape of a container in which a plurality of permeable holes are formed in the bottom layer; Molding the protective plate frame body 320 in the shape of a container surrounding the lower surface and side surfaces of the protective plate body 310 and having a plurality of permeable holes formed in the bottom layer in a second molding machine; Demolding and curing the protective plate frame 320 formed in the second molding machine in a second molding machine; Applying a photocatalyst to the cured protection plate frame body 320; forming an impact mitigating layer for mitigating external impact by uniformly applying foamed urethane to the lower side of the bottom layer of the protection plate frame body 320 manufactured through , Before the applied foamed urethane is cured, a strength reinforcing layer is further formed by bonding a synthetic wood having a through hole communicating with a permeable hole formed in the bottom layer of the protective plate frame body 320.

Thereafter, when the protective plate frame body 320 is combined to surround the lower surface and the side surface of the protective plate body 310, the roadway protective plate 300 is prepared. However, in the case where only the protective plate main body 310 is constructed as the street tree protective plate 300 alone, there is no need for a process of preparing and incorporating the protective plate frame body 320 as described above.

Thereafter, the second step of compacting the ground on which the roadside trees are to be planted and forming a seating groove in which the roadside tree protection plate 300 will be seated is performed.

Thereafter, a third step of mounting the roadway protection plate 300 in the mounting groove formed in the second step proceeds.

Thereafter, the fourth step of performing a finishing arrangement such as compacting the ground, used tools and foreign substances, etc. after the roadway protection plate 300 is seated in the seating groove proceeds. In this way, the construction of the street tree protection plate 300 is completed.

Although a preferred embodiment of the present invention has been described above, the present invention can use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Therefore, the above description does not limit the scope of the present invention determined by the limits of the following claims.

110a: first grinder 110b: second grinder
120: foreign matter remover 121: vibration plate
121a: mesh fence 122: actuator
123: blower 124: duct
125: electromagnet 130: separator for each particle size
140: plasma processing apparatus 150a: first stirrer
150b: second agitator 160a: coloring furnace
160b: heating furnace 170: cooling dryer
180: photocatalyst coating device 190: conveying device
210: third agitator 220: pressure molding machine
230: Curing period 240: 4th stirring period
250: second molding machine 260: second curing machine
270: second photocatalyst coating device 280: coalescence unit
300: street tree protection plate 310: protection plate body
320: protective plate frame 351, 352: single fiber PE ply

Claims (9)

As a method for manufacturing a street tree protection plate using color aggregate,
Coloring a pigment in the aggregate obtained by grinding at least one natural stone selected from basalt, granite, dolomite, silica sand, zircon, and germanium to prepare a color aggregate; Mixing and stirring the color aggregate, a polyurethane resin, and a curing accelerator; Injecting a mixture of the stirred color aggregate, polyurethane resin, and curing accelerator into a first molding machine to form a protective plate body having permeable pores and having a through hole through which the base of the street tree passes through the center portion; Demolding the protective plate body molded in the first molding machine in a first molding machine; And curing the protective plate body demolded in the first molding machine,
Manufacturing a mortar for forming a container-shaped protective plate frame body that surrounds the lower surface and the side surface of the protective plate body and has a plurality of permeable holes formed in the bottom layer; Molding the protective plate frame body in the shape of a container surrounding the lower surface and the side surface of the protective plate body and having a plurality of permeable holes formed in the bottom layer in a second molding machine; Demolding and curing the protective plate frame body molded in the second molding machine in a second molding machine; Applying a photocatalyst to the cured protective plate frame; Including; incorporating the protective plate frame body with the protective plate body,
The mortar includes 49-55% weight of blast furnace slag cement, 0.05-0.2% weight of PE blend, 0.2-1.5% weight of polymer, 0.02-0.1% weight of thickener, 0.05-0.2% weight of foaming agent, and 40-50% weight of fine aggregate, ,
A process of applying a tensile force to the PE plying string in order to prepare a short-fiber PE plying yarn of 3 to 6 cm in a uniformly dispersed form to the mortar for forming the protective plate frame body, but both ends are bent in a ring shape. ; Applying by spraying epoxy first while applying tensile force to the PE braided string, and spraying inorganic particles having a particle diameter of 10 to 100 μm before the applied epoxy is cured, thereby forming protrusions caused by inorganic particles on the surface of the PE braiding string. Forming process; And a process of shortly cutting the PE braided line into several strands; a method for manufacturing a street tree protection plate, characterized in that it proceeds step by step. delete The method of claim 1,
The step of preparing the color aggregate,
Pulverizing the aggregate made of natural stone to an average particle size of 0.5 to 50 mm;
Separating the pulverized aggregate by particle size; Mixing and stirring the aggregate separated for each particle size with a pigment; Heating the stirred aggregate and the pigment to color the aggregate; Mixing and stirring an epoxy resin, a UV stabilizer, and a curing accelerator to the colored aggregate to coat the surface; Heat-impregnating the aggregate surface-coated with an epoxy resin, a UV stabilizer, and a curing accelerator; Cooling and drying the heat-impregnated aggregate; And applying a photocatalyst to the cooled and dried aggregate,
50 to 90% by weight of the aggregate, 1 to 10% by weight of pigment, 1 to 30% of epoxy resin, 0.1 to 5% of UV stabilizer, and 0.1 to 5% by weight of curing accelerator,
In order to increase the coloring efficiency of the pigment with respect to the aggregate, the aggregate is cleaned before mixing the aggregate and the pigment, and plasma treatment is performed on the surface thereof,
In the step of impregnating the aggregate surface-coated with the epoxy resin, UV stabilizer, and curing accelerator by heating, it is characterized in that the first heating is performed at a temperature of 300 to 780°C, followed by secondary heating at a temperature of 300 to 780°C. How to manufacture a roadway protection plate. delete delete The method of claim 1,
Foam urethane is evenly applied to the lower side of the bottom layer of the protective plate frame to form an impact mitigating layer to alleviate external impacts, and before the applied foam urethane is cured, in the permeable holes formed in the bottom layer of the protective plate frame. A method for manufacturing a street tree protection plate, characterized in that the strength reinforcing layer is formed by joining synthetic wood having communication through holes. A street tree protection plate, characterized in that it is manufactured by the method of manufacturing a street tree protection plate according to claim 1. As a roadway protection plate construction method for constructing a roadway protection plate manufactured by the method of manufacturing a roadway protection plate according to any one of claims 1, 3, and 6,
Coloring a pigment in the aggregate obtained by grinding at least one natural stone selected from basalt, granite, dolomite, silica sand, zircon, and germanium to prepare a color aggregate; Mixing and stirring the color aggregate, a polyurethane resin, and a curing accelerator; Injecting a mixture of the stirred color aggregate, polyurethane resin, and curing accelerator into a first molding machine to form a protective plate body having permeable pores and having a through hole through which the base of the street tree passes through the center portion; Demolding the protective plate body molded in the first molding machine in a first molding machine; And curing the protective plate main body demolded in the first molding machine; a first step of preparing a street tree protective plate provided with the protective plate main body manufactured through;
A second step of compacting the ground when the roadside trees are to be planted and forming a seating groove in which the roadside tree protection plate is to be seated;
A third step of mounting the roadway protection plate in the mounting groove formed in the second step;
A fourth step of arranging the finish after the roadside tree protection plate is seated in the seating groove. A method of constructing a roadside tree protection plate comprising: a. The method of claim 8,
In the first step, manufacturing a mortar for forming a container-shaped protective plate frame body in which a plurality of permeable holes are formed in the bottom layer; Molding the protective plate frame body in the shape of a container surrounding the lower surface and the side surface of the protective plate body and having a plurality of permeable holes formed in the bottom layer in a second molding machine; Demolding and curing the protective plate frame body molded in the second molding machine in a second molding machine; Applying a photocatalyst to the cured protection plate frame; by uniformly applying a foam urethane to the lower side of the bottom layer of the protective plate frame produced through a certain thickness to form an impact mitigating layer to alleviate external impact, and the applied foam urethane Before being cured, a strength reinforcing layer is further formed by joining synthetic wood having through holes in the bottom layer of the protection plate frame body to communicate with the permeable holes formed in the bottom layer of the protection plate frame body. A roadway protection plate construction method, characterized in that to prepare a roadway protection plate.

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