KR101853693B1 - Polymer concrete block, manufacturing device and method of polymer concrete block - Google Patents

Abstract

The present invention relates to a polymer concrete block, and to a device and a method for manufacturing a polymer concrete block. More particularly, the present invention relates to the polymer concrete block, which is manufactured without deteriorating productivity by applying a mold releasing material excellent in releasability, and to the device and method for manufacturing the polymer concrete block. The present invention includes a base layer and a surface layer, wherein the base layer includes a base layer aggregate having the particle size of 5 mm or more and a polymer binder for the base layer, and the surface layer includes a surface layer aggregate having the particle size of 5 mm or less and a polymer binder for the surface layer.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polymer concrete block, a polymer concrete block manufacturing apparatus,

The present invention relates to a polymer concrete block, an apparatus for producing a polymer concrete block, and a manufacturing method. More particularly, the present invention relates to a polymer concrete block, a polymer concrete block manufacturing apparatus, and a manufacturing method, which are manufactured without deteriorating productivity by applying a release material excellent in releasability.

Generally, pavement block for road pavement is cement concrete block. Such a cement concrete block is formed by putting a cement-binder concrete into a mold.

Korean Patent Registration No. 10-1514741 for such a cement concrete block provides a high strength and high durability cement concrete composition having high strength and durability and a method for producing a concrete block using the same.

Korean Utility Model Registration No. 20-0337302 also provides a press block in which a press block is formed thicker than a general press block and a void groove is formed at the bottom to maintain the permeability of the paper so that the entire surface of the paper is not chipped .

Such a cement concrete block has a problem that the continuous penetration power is rapidly lowered due to a large amount of water absorption at the time of rainfall because of its excellent water absorption ability, and slipping phenomenon is increased due to freezing of road surface due to excessive water absorption during the winter season.

In order to solve the problems of the conventional cement concrete block, it is an object of the present invention to provide an environmentally friendly polymer concrete block which is excellent in permeability and water permeability, has no freezing phenomenon on the winter season, and has no environmental pollution.

It is another object of the present invention to provide an apparatus and a method for manufacturing a polymer concrete block which prevent the mixing of polymer concrete and the productivity of putting equipment from being deteriorated by scale.

It is another object of the present invention to provide an apparatus and a method for manufacturing a polymer concrete block that prevent the productivity of a pressurizing equipment of a polymer concrete block from being degraded by a scale.

The present invention relates to a method for producing a polymer composite material, which comprises mixing a polymer binder for a base layer and a base material aggregate in a mixing tank to discharge a polymer concrete for a base layer, and blending the polymer binder for a surface layer and a surface layer aggregate to discharge the polymer concrete for a surface layer; And a molding step of press-molding the polymer concrete for a base layer with a pressurizing part and press-forming the polymer concrete for a surface layer formed on the polymer concrete for the base layer by the pressurizing part to produce a polymer concrete block A method for manufacturing a polymer concrete block is provided.

Also, in the mixing step, instead of discharging the polymer concrete for the base layer, the cement binder is mixed with the base aggregate to discharge the cement concrete, and in the forming step, instead of press-molding the polymer concrete for the base layer, The concrete can be pressure-molded.

The mixing tank may be a solid or liquid release material.

The molding step may include supplying the polymer concrete for the base layer to the molding frame by a presser for the base layer of the polymer concrete for the base layer and a flow hood for the surface layer before the press molding of the polymer concrete for the surface layer, Wherein the fluidized hopper for the base layer, the fluidized hopper for the surface layer, and the molding die may be a solid or liquid release material.

The supply portion receives the polymer concrete for the surface layer discharged from the mixing tank and supplies the polymer concrete for the surface layer to the flow hopper for the surface layer and supplies the polymer concrete for the base layer discharged from the mixing tank to the flow hopper for the base layer Wherein the solid or liquid release material can be applied to the supply portion.

The method may further include a washing step of washing the pressing portion at the same time when the surface layer flow hood feeds the surface layer polymer concrete to the forming mold.

The cleaning step may further include transferring the liquid release material to the cleaning brush to clean the pressing part.

It is preferable that the solid phase release material comprises at least one of polyethylene, Teflon, paraffin, and polyvinyl alcohol, and the liquid phase release material includes at least one of volatile solvent, light oil, silicone release agent and vegetable oil .

The present invention also relates to a mixing tank for discharging a polymer concrete for a base layer by blending a polymer binder for a base layer and a base aggregate and discharging the polymer concrete for a surface layer by blending a polymer binder for a surface layer and a surface layer aggregate; And a pressing part for pressing the polymer concrete for the base layer and the polymer concrete for the surface layer to a pressing surface to form a polymer concrete block.

In addition, the mixing tank may discharge the cement concrete by mixing the cement binder with the base aggregate instead of discharging the polymer concrete for the base layer, and the pressing portion may pressurize the cement concrete instead of pressing the polymer concrete for the base layer. It is possible to pressurize.

A molding frame located below the pressing surface to receive the polymer concrete for the base layer and the polymer concrete for the surface layer; A flow hopper for a base layer for supplying the forming polymeric concrete to the forming mold; And a surface layer flow hopper for supplying the surface layer polymer concrete to the forming mold, wherein a solid or liquid release material can be applied to the poured portion.

In addition, a supply unit for receiving the polymer concrete for a surface layer discharged from the mixing tank and supplying the polymer concrete for the surface layer to the flow hopper for the surface layer, and supplying the polymer concrete for the base layer discharged from the mixing tank to the flow hopper for the base layer And the solid or liquid release material may be applied to the supply part.

The cleaning brush may include a brush bar having a hollow shape and a brush connected to the brush bar. The brush bar may be provided with a plurality of The pressurized surface may be cleaned by contacting the pressurized surface in accordance with the operation of the surface layer flow hopper.

Further, the brush bristles of the cleaning brush may be formed of the solid release material.

Also, the cleaning brush may include a brush bristle and a brush bar, and the liquid release material supplied from the outside may be transferred to the brush bristle through a discharge trough formed on an outer peripheral surface of the center rod of the brush.

The present invention also includes a base layer and a surface layer, wherein the base layer includes a base layer aggregate having a particle size of 5 mm or more and a polymer binder for a base layer, wherein the surface layer includes a surface layer aggregate having a particle size of 5 mm or less and a polymer binder for a surface layer The polymeric concrete block comprising:

In addition, the polymer binder for the base layer and the surface layer may be composed of a main and a curing agent, and the subject may include an environmentally friendly bio-polyol and a hard polyol, wherein the curing agent is a first curing agent comprising an isocyanate compound; And a second curing agent comprising an isocyanate compound and a soft polyol.

Also, the viscosity of the subject may be 600 to 5500 cps / 23 占 폚, the viscosity of the first curing agent may be 170 to 250 cps / 23 占 폚, and the viscosity of the second curing agent may be 300 to 1400 cps / 23 占 폚.

The base layer may be composed of 92 to 98% by weight of the base layer aggregate and 2 to 8% by weight of the polymer binder for the base layer, and the surface layer may consist of 92 to 98% by weight of the surface layer aggregate and 2 to 8% by weight of the polymer binder for the surface layer .

In addition, the base layer may include a cement binder instead of the polymer binder for the base layer.

In addition, the NCO groups contained in the polymer binder for the surface layer and the OH groups included in the production process of the cement binder may be bonded by the polyurethane polymerization reaction.

The present invention can provide an eco-friendly polymer concrete block which is excellent in water permeability and water permeability persistence, free from icing on the road surface in the winter season, and free from environmental pollution by utilizing a polymer binder.

In addition, the present invention can provide an apparatus and a method for manufacturing a polymer concrete block, which prevent the mixing of polymer concrete and the productivity of putting equipment from being deteriorated by scale, by applying a mold releasing material excellent in releasability.

In addition, the present invention can provide a device for manufacturing a polymer concrete block and a manufacturing method of the polymer concrete block so that the productivity of the molding equipment of the polymer concrete block is not lowered by the scale, by providing a device for washing the pressurizing equipment of the polymer concrete block.

1 is a perspective view of a polymer concrete block according to a preferred embodiment of the present invention.
2 is a cross-sectional view of a mixing tank in a polymer concrete block production apparatus according to a preferred embodiment of the present invention.
FIG. 3 is a view for explaining a supply portion in a polymer concrete block production apparatus according to a preferred embodiment of the present invention.
4 is a perspective view of a pouring part and a pressing part in a polymer concrete block manufacturing apparatus according to a preferred embodiment of the present invention.
5 is a view for explaining the operation of a flow hopper for a base layer in a polymer concrete block production apparatus according to a preferred embodiment of the present invention.
FIG. 6 is a view for explaining a press forming operation of a pressing portion in a polymer concrete block producing apparatus according to a preferred embodiment of the present invention. FIG.
7 is a view for explaining the operation of the surface flow hopper and the cleaning brush in the polymer concrete block manufacturing apparatus according to the preferred embodiment of the present invention.
8 is a perspective view of a cleaning brush in an apparatus for producing a polymer concrete block according to a preferred embodiment of the present invention.
9 is a flowchart illustrating a method of manufacturing a polymer concrete block according to a preferred embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a 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. In addition, the preferred embodiments of the present invention will be described below, but it is needless to say that the technical idea of the present invention is not limited thereto and can be variously modified by those skilled in the art.

1 is a perspective view of a polymer concrete block according to a preferred embodiment of the present invention.

Referring to FIG. 1, the polymer concrete block includes a surface layer 10 and a base layer 20.

The surface layer 10 is formed of polymer concrete for the surface layer including the surface layer aggregate 11 and the surface layer polymer binder 12. [ The plurality of surface layer aggregates 11 are connected by the surface layer polymer binder 12, and the surface layer 10 is formed.

In one embodiment, the surface layer aggregate 11 may be a silica sand or a wheat grain aggregate having a particle size of 0.5 to 5 mm.

In one embodiment, the surface layer 10 may have a thickness of at least 6 mm.

The base layer 20 is formed of a polymer concrete for a base layer including a base layer aggregate 21 and a polymer binder 22 for a base layer. The plurality of base aggregates 21 are connected by the polymer binder 22 for the base layer, and the base layer 20 is formed.

In one embodiment, the base layer aggregate 21 may be a crushed stone having a granular size of 5 to 20 mm. Accordingly, the water introduced through the surface layer 10 can be well permeated, economical efficiency can be achieved, and sufficient air gaps can be secured to prevent breakage due to water expansion.

In one embodiment, the base layer 20 may have a thickness of 4 to 7 cm.

In one embodiment, the polymer binders 12 and 22 for the surface layer and the base layer may be composed of a base and a curing agent. The subject may include eco-friendly bio-polyols and hard polyols and may have a viscosity of 600-5500 cps / 23 ° C.

The curing agent may be one of a first curing agent having an isocyanate compound and a viscosity of 170 to 250 cps / 23 ° C, and a second curing agent having an isocyanate and a soft polyol and having a viscosity of 300 to 1400 cps / 23 ° C.

Test Items unit Cement concrete blocks Test result of the present invention Test Specification Compressive strength MPa 12 or more 24.9 KS F 2405 Flexural strength MPa 1.2 or higher 9.8 KS F 2408 The compressive strength after freezing and thawing (100 cycles) MPa 9.6 or higher 18.1 KS F 2456
KS F 2405 Flexural strength after freezing and thawing (100 cycles) MPa 4.19 KS F 2456
KS F 2408 Permeability coefficient cm / sec 0.01 or more 0.16 KS F 2322

Table 1 shows the physical properties of the polymer concrete block according to the present invention.

Referring to Table 1, the polymer concrete block has excellent compressive strength, flexural strength, compressive strength after 100 cycles, and flexural strength after 100 cycles after curing concrete block.

In addition, the test result of the permeability coefficient according to the test standard KS F 2322 is 0.16 cm / sec, which is superior to the water permeable cement concrete block.

Also, the polymer concrete block according to the present invention can be shipped within 3 hours after the blending, thereby reducing the management cost and increasing the productivity. In addition, there is no absorption of moisture, and the water-repellent persistence is excellent, and there is no freezing phenomenon in the winter season. In addition, the eight major heavy metals are not eluted, and four heavy metals are not detected, so that there is an eco-friendly effect.

However, the concrete using the polymer as a binder has a high curing rate after curing compared with the cement concrete, has a strong adhesive force during the curing process and can be adhered to the manufacturing apparatus, and the productivity of the manufacturing apparatus Can be degraded. Therefore, there is a need for a manufacturing apparatus and a manufacturing method in which productivity is reduced due to curing of concrete using a polymer as a binder.

A manufacturing apparatus and a manufacturing method for improving productivity by curing will be described later.

In one embodiment, a cement binder may be formed in place of the polymer binder 22 for the base layer, and the base layer 20 may be formed of common cement concrete. In the case of the polymer concrete block according to the present invention, since the polymer binder for a surface layer 12 formed on the surface layer 10 is a key constituent for enhancing permeability and permeability sustainability, the cement concrete is applied to the base layer 20 While maintaining economic efficiency, permeability and permeability persistence can be kept high. When the base layer 20 is formed of cement concrete, the polymer binder for surface layer 12 may be used for reacting with water for efficient adhesion with the base layer 20 composed of a water-rich cement binder.

The surface layer 10 and the base layer 20 are bonded together by the OH group contained in the base layer 20 of the cement binder manufacturing process and the NCO group contained in the polymer binder for surface layer 12 of the surface layer 10 by the polyurethane polymerization reaction. It is not necessary to use a separate adhesive or a bonding process, so that an economical and excellent bonding can be realized.

2 is a cross-sectional view of a mixing tank in a polymer concrete block production apparatus according to a preferred embodiment of the present invention.

Referring to FIG. 2, the mixing tank 110 mixes the aggregate and the polymer binder.

The mixing tank 110 has a receiving portion 111, a mixing screw 112, and an outlet 113 through which aggregate and a polymer binder can be supplied. The containing portion 111 is provided at the uppermost portion of the mixing tank 110 and the mixing screw 112 is provided at the lower portion of the storing portion 111 and the discharging opening 113 is provided at the lower portion of the mixing screw 112.

The blending screw 112 includes a first blending screw 112a and a second blending screw 112b. The first and second blending screws 112a and 112b are provided in the form of columns connecting opposite side surfaces of the mixing tank 110. [

In one embodiment, the first and second blending screws 112a and 112b may be one of a non-core screw, a taper screw, and a ribbon screw.

The first and second blending screws 112a and 112b are rotated to form an aggregate and a polymer binder. When the aggregate and the polymer binder are compounded while passing through the compounding screw 112, polymer concrete is produced. The generated polymer concrete can be discharged to the outside through the discharge port 113.

In one embodiment, a release material having excellent releasability may be applied to all surfaces that contact the polymer binder and the polymer concrete of the receiving portion 111 of the compounding tank 110, the compounding screw 112, and the outlet 113. In the method in which the releasing material is applied, a solid or liquid release material can be coated on the surface, and a board, tape, sheet or the like made of a solid release material can be attached to the surface.

By applying the releasing material, the scale of the compounding tank 110 due to the hardening of the polymer binder and the polymer concrete may not be generated, and the productivity may not be deteriorated.

In one embodiment, the solid phase release material applied to the compounding tank 110 may be one of polyethylene, Teflon, paraffin, polyvinyl alcohol, and the liquid phase release material may be a volatile solvent, light oil, silicone release agent, Oil. ≪ / RTI > The solid and liquid release materials applied to the supply unit 120, the placement unit 130 and the pressurization unit 140, which will be described later, can also be composed of components such as solid and liquid release materials applied to the mixing tank 110 .

The mixing tank 110 can mix the surface layer aggregate 11 and the surface polymer binder 12 to discharge the surface layer polymer concrete and mix the base layer aggregate 21 and the polymer binder 22 for the base layer, The polymer concrete can be discharged, and the base aggregate 21 and the cement binder can be mixed to discharge the cement concrete.

FIG. 3 is a view for explaining a supply portion in a polymer concrete block production apparatus according to a preferred embodiment of the present invention.

Referring to FIG. 3, the supply unit 120 transfers the polymer concrete to the placement unit 130. The supply section 120 includes a primary hopper 121 for a base layer, a secondary hopper 122 for a base layer, a primary hopper 123 for a surface layer, and a secondary hopper 124 for a surface layer.

The primary hopper 121 receives the polymer concrete or cement concrete for the base layer discharged from the mixing tank 110. The primary hopper 121 for the base layer has a capacity capable of stably accommodating the polymer concrete or cement concrete for the base layer and stably supplying it to the secondary hopper 122 for the base layer.

The base second hopper 122 receives the polymer concrete or cement concrete for the base layer supplied from the primary hopper 121 for the base layer and supplies it to the flow hopper 131 for the base layer. Since the secondary hopper for base layer 122 has a smaller capacity than the primary hopper for base layer 121, the supply from the primary hopper for base layer 121 to the secondary hopper for base layer 122 is divided . Layer hopper 122 can supply a certain amount of polymer concrete or cement concrete for the base layer to the base flow hopper 131 using a timer device or a metering device.

The surface primary hopper 123 receives the polymer concrete for the surface layer discharged from the mixing tank 110. The surface layer primary hopper 123 has a capacity capable of stably accommodating the surface layer polymer concrete and stably supplying the surface layer secondary hopper 124 with the surface layer.

The surface-layer secondary hopper 124 receives the surface-layer polymer concrete supplied from the surface layer primary hopper 123 and supplies it to the surface layer flow hopper 135. Since the surface layer secondary hopper 124 has a relatively small capacity as compared with the surface layer primary hopper 123, the supply from the surface layer primary hopper 123 to the surface layer secondary hopper 124 is divided . The surface-layer secondary hopper 124 can supply a predetermined amount of surface-layer polymer concrete to the surface layer flow hopper 135 by using a timer device or a metering device.

In one embodiment, the polymeric concrete of the primary hopper 121 for the base layer, the secondary hopper 122 for the base layer, the primary hopper 123 for the surface layer and the secondary hopper 124 for the surface layer, All surfaces that come into contact can be subjected to a release mold having excellent releasability. In the method in which the releasing material is applied, a solid or liquid release material can be coated on the surface, and a board, tape, sheet or the like made of a solid release material can be attached to the surface.

By applying the releasing material, the supply part 120 may not generate scale due to hardening of the polymer concrete, and productivity may not be deteriorated.

FIG. 4 is a perspective view of a pouring part and a pressing part in a polymer concrete block manufacturing apparatus according to a preferred embodiment of the present invention, and FIG. 5 is a view showing an apparatus for producing a polymer concrete block according to a preferred embodiment of the present invention, FIG. 6 is a view for explaining the press forming operation of the pressing portion in the polymer concrete block producing apparatus according to the preferred embodiment of the present invention. FIG.

7 is a view for explaining the operation of the surface flow hopper and the cleaning brush in the polymer concrete block manufacturing apparatus according to the preferred embodiment of the present invention, and FIG. 8 is a view showing the operation of the polymer concrete block according to the preferred embodiment of the present invention. FIG. 2 is a perspective view of a cleaning brush in a manufacturing apparatus. FIG.

4 to 8, the poured portion 130 and the pressing portion 140 form a polymer concrete block.

The poured portion 130 includes a flow hopper 131 for a base layer, a flow device 132, a support plate 133, a molding frame 134, a surface flow hopper 135 and a cleaning brush 136, (140) includes a pressing surface (141) and a partitioning wall (142).

The base fluidized hopper 131 and the surface fluidized hopper 135 are formed on the upper side of the support plate 133 and the fluidizing device 132 is connected to the fluidized hopper 131 for the base layer and the fluidized hopper 135 for the surface layer . The base fluid hopper 131 supplies the polymer concrete or cement concrete for the base layer supplied from the secondary hopper 122 for the base layer to the forming die 134 and the surface layer flow hopper 135 supplies the surface layer secondary hopper 124 are supplied to the mold frame 134. The mold frame 134 is made of polymer concrete for surface layer. The flow hopper 131 for the base layer and the flow hopper 135 for the surface layer include openings 131a and 135a at the bottom.

In one embodiment, the cleaning brush 136 may be formed in connection with the surface layer flow hopper 135. The cleaning brush 136 is formed on the top of the surface layer flow hopper 135, and serves to clean the pressing portion 140.

In one embodiment, the flow device 132 may be connected to the side of the flow hopper 131 for the base layer and the flow hopper 135 for the surface layer. The flow device 132 serves to move the flow hopper 131 for the base layer and the flow hopper 135 for the surface layer.

In one embodiment, the flow device 132 may include one of a hydraulic device, a pneumatic device, and an electric motor to move the flow hopper 131 for the base layer and the flow hopper 135 for the surface layer.

The support plate 133 is a plate having a predetermined thickness for supporting the fluidized hopper 131 for the base layer and the fluidized hopper 135 for the surface layer from the lower part of the base layer flow hopper 131 and the surface layer flow hopper 135. The flow hopper 131 for the base layer and the flow hopper 135 for the surface layer can move along the upper surface of the support plate 133.

The forming hopper 131 and the surface layer hopper 135 are formed between the supporting plates 133 on both sides so that the forming hopper 131 and the surface layer hopper 135 move along the supporting plate 133, .

The mold frame 134 has a partition 134a. A plurality of molding compartments 134b capable of receiving the concrete are formed while the space in which the molding mold 134 can receive the concrete is divided by the partition 134a.

In one embodiment, the partition 134a may be provided in various forms. Therefore, the number and shape of the molding compartment 134b can be varied corresponding to the shape of the partition 134a.

All of the surfaces in contact with the polymer concrete of the base layer flow hopper 131, the surface layer flow hopper 135, the support plate 133 and the mold frame 134 of the poured portion 130 have excellent releasability Release materials can be applied. In the method in which the releasing material is applied, a solid or liquid release material can be coated on the surface, and a board, tape, sheet or the like made of a solid release material can be attached to the surface.

By applying the releasing material, the cast part 130 may not be scaled by the hardening of the polymer concrete, and productivity may not be deteriorated.

 The pressing portion 140 is formed on the upper portion of the forming die 134 and the pressing surface 141 of the pressing portion 140 is disposed toward the forming die 134. The pressing surface 141 presses and forms the concrete supplied to the forming mold 134.

The pressing surface 141 has a shape corresponding to the shape of the molding chamber 134b of the molding die 134. [ That is, the pressing portion 140 has a plurality of pressing surfaces 141 capable of pressing the concrete housed in the plurality of molding compartments 134b, respectively, and a plurality of pressing surfaces 141 corresponding to the partition 134a The partitioning groove 142 is formed concavely so that the pressing surface 141 and the partition 134a are not in contact with each other.

In one embodiment, the pressing surface 141 of the pressing portion 140 may be a releasing material having excellent releasability. In the method in which the releasing material is applied, a solid or liquid release material can be coated on the pressing surface 141, and a board, a tape, a sheet or the like made of a solid release material can be attached to the surface.

By applying the releasing material, the cast part 130 may not be scaled by the hardening of the polymer concrete, and productivity may not be deteriorated.

5, a description will be given of a process in which the polymer concrete or cement concrete for a base layer supplied to the fluidized hopper 131 for a base layer is supplied to the mold frame 134.

5 (a), when the polymer concrete or the cement concrete for the base layer is supplied to the fluidized hopper 131 for the base layer, the fluidizing device 132 operates to move the fluidized hopper 131 for the base layer. The base flow hopper 131 moves along the support plate 133 to the upper portion of the forming die 134. Since the support plate 133 has a structure for closing the opening 131a of the flow hopper 131 for the base layer, when the base hopper 131 is positioned above the support plate 133, the polymer concrete for the base layer or the cement concrete It is not discharged.

5 (b), when the fluidized hopper 131 for the base layer is moved to the upper portion of the forming mold 134, the polymer concrete or cement concrete for the base layer is discharged through the opening 131a, Respectively, into a plurality of molding compartments 134b.

When the polymer concrete for the base layer or the cement concrete is supplied to each of the molding compartments 134b, the flow device 132 operates to move the flow hopper 131 for the base layer to the original position.

6, the operation of press-molding the polymer concrete or cement concrete for the base layer supplied to the forming mold 134 will be described.

As shown in FIG. 6 (a), when the polymer concrete or the cement concrete for the base layer is supplied to the mold frame 134, the pressing portion 140 is lowered. As the pressing portion 140 descends, the pressing surface 141 of the pressing portion 140 press-molds the polymer concrete or the cement concrete for the base layer.

As shown in FIG. 6 (b), when the polymer concrete for a base layer or the cement concrete is press-formed, the pressing portion 140 is raised.

Referring to FIG. 7, a process of supplying the surface layer polymer concrete supplied to the surface layer flow hopper 135 to the mold frame 134 and a process of cleaning the pressing portion 140 by the cleaning brush 136 will be described.

As shown in FIG. 7 (a), when the pressurization of the polymer concrete or cement concrete for the base layer is completed and the pressurizing portion 140 rises, the fluidizing device 132 operates to move the surface layer flow hopper 135. The surface layer flow hopper 135 is moved to the upper portion of the forming die 134 along the support plate 133. Since the support plate 133 has a structure for closing the opening 135a of the surface layer flow hopper 135, when the surface layer flow hopper 135 is located above the support plate 133, the surface layer polymer concrete is not discharged .

7 (b), when the surface layer flow hopper 135 is moved to the upper portion of the forming mold 134, the surface layer polymer concrete is discharged through the opening 135a, and a plurality of And is supplied to each of the molding compartments 134b.

When the polymer concrete for the surface layer is supplied to each of the molding compartments 134b, the flow device 132 operates to move the surface layer flow hopper 135 in place.

In one embodiment, the cleaning brush 136 may clean the pressing portion 140 with the operation of the surface layer flow hopper 135.

When the pressing portion 140 presses the polymer concrete for the base layer, the polymer concrete for the base layer can be attached to the pressing surface 141 by viscosity. When the pressurizing portion 140 presses the polymer concrete for the surface layer in a state where the polymer concrete for the base layer adhered to the pressurizing surface 141 is not cleaned, the fine particles of the polymer concrete for the surface layer adhere to the polymer concrete for the base layer, The surface of the substrate 10 can not be formed flat. Thus, a process of cleaning the pressure surface 141 with the cleaning brush 136 is needed.

7A and 7B, since the cleaning brush 136 is connected to the surface layer flow hopper 135, the cleaning brush 136 moves together with the movement of the surface layer flow hopper 135. The cleaning brush 136 is moved in contact with the pressing surface 141, so that the polymer concrete for the base layer adhered to the pressing surface 141 can be cleaned.

In one embodiment, a drive unit that rotates the cleaning brush 136 may be provided, and the cleaning brush 136 may clean the pressing surface 141 while rotating by operation of the drive unit. The cleaning brush 143 can rotate at 50 RPM or more.

Referring to FIG. 8, the cleaning brush 136 includes a brush bar 137 and a brush bristle 138 in a hollow form. A brush brush 138 is connected to the brush brush 137 located at the center of the cleaning brush 136.

In one embodiment, a perforation 139 may be formed on the outer circumferential surface of the brush bar 137. The perforation 139 serves as a passage through which the liquid release material flowing into the interior of the brush bar 137 from the outside is discharged toward the brush bristles 138. As the cleaning brush 136 rotates, a centrifugal force is applied to the liquid release material located inside the brush bar 137, and the liquid release material is discharged toward the brush bristles 138 through the bore 139. In one embodiment, the perforations 139 may be less than 1 mm in diameter.

The liquid release material discharged through the perforations 139 is transferred to the brush bristles 138 and transferred onto the pressing surface 141 while washing the pressure surface 141. [ The liquid release material is transferred to the brush bristles 138 and the pressure surface 141, whereby the cleaning effect of the cleaning brush 136 can be enhanced.

The liquid release material is transferred to the brush bristles 138 through the perforations 139 so that a maximum cleaning effect can be obtained while using a minimum amount of liquid release material. Further, there is an effect of preventing the liquid release material from falling into the forming die 134.

In one embodiment, the bristles 138 may be constructed of a solid release material. The cleaning effect of the cleaning brush 136 can be enhanced by making the brush bristles 138 of the solid release material.

When the supply of the surface layer polymer concrete by the surface layer flow hopper 135 and the cleaning of the pressure surface 141 by the cleaning brush 136 are completed, the pressing portion 140 press-molds the surface layer polymer concrete. When the surface layer concrete is press-formed, the polymer concrete block is completed.

9 is a flowchart illustrating a method of manufacturing a polymer concrete block according to a preferred embodiment of the present invention.

Referring to FIG. 9, a method of manufacturing a polymer concrete block according to the present invention includes a blending step (S110), a supplying step (S120), a forming step and a cleaning step (S130).

In the compounding step (S110), the aggregate and the polymer binder are compounded by the compounding tank (110) to produce a polymer concrete or a cement concrete for a base layer and a polymer concrete for a surface layer, and is discharged through an outlet (113).

In the supplying step S120, the primary hopper 121 for the base layer receives the polymer concrete or cement concrete for the base layer discharged from the mixing tank 110 and supplies the polymer concrete or the cement concrete to the secondary hopper 122 for the base layer, (122) feeds the polymer concrete or cement concrete for the base layer to the flow hopper (131) for the base layer. The surface layer primary hopper 123 receives the polymer concrete for the surface layer discharged from the mixing tank 110 and supplies the polymer concrete to the surface layer secondary hopper 123. The surface layer secondary hopper 124 is a surface layer flow hopper 135). ≪ / RTI >

The flow hopper 131 for the base layer supplies the polymer concrete or cement concrete for the base layer supplied from the second hopper 122 for the base layer to the forming die 134 and the pressurizing part 140, The polymer concrete for the base layer or the cement concrete is pressure-molded. Next, the surface-layer flow hopper 135 supplies the surface-layer polymer concrete supplied from the surface-layer secondary hopper 124 to the mold frame 134. When the pressurizing portion 140 pressurizes the polymer concrete for the base layer, the cleaning brush 136 rinses the pressurizing surface 141 as the surface layer flow hopper 135 moves. Next, when the pressing portion 140 press-molds the surface layer polymer concrete, the polymer concrete block is completed.

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

110: Mixing tank
120:
130:
131: Flow hopper
134: Molding frame
140:
141: Pressurized surface
143: Cleaning brush

Claims (23)

Mixing a polymer binder for a base layer and a base aggregate in a mixing tank to discharge the polymer concrete for a base layer and blending the polymer binder for the surface layer and the surface aggregate to discharge the polymer concrete for the surface layer; And
Forming a polymer concrete block by press-molding the polymer concrete for a base layer with a pressurizing part and press-molding the polymer concrete for a surface layer formed on the polymer concrete for the base layer by the pressurizing part;
Wherein the forming step comprises supplying the polymer concrete for the base layer to the forming mold by a flow hog for a press forming preform of the polymer concrete for the base layer and supplying the polymer concrete for surface layer to the forming mold, To the frame,
The fluidized hopper for the base layer, the fluidized hopper for the surface layer, and the molding die are applied with a solid or liquid release material,
Wherein the supplying unit receives the polymer concrete for the surface layer discharged from the mixing tank and supplies the polymer concrete for the surface layer to the flow hopper for the surface layer and supplies the polymer concrete for the base layer discharged from the mixing tank to the flow hopper for the base layer Further included,
Wherein the supply portion is applied with the solid or liquid release material. The method according to claim 1,
Wherein the mixing step is a step of discharging the cement concrete by mixing the cement binder with the base aggregate instead of discharging the polymer concrete for the base layer,
Wherein the forming step comprises press-molding the cement concrete instead of press-molding the polymer concrete for the base layer. The method according to claim 1,
Wherein the mixing tank is applied with a solid or liquid release material. delete delete The method according to claim 1,
Further comprising a washing step of washing the pressing portion at the same time when the surface layer flow hood feeds the surface layer polymer concrete to the forming mold. The method according to claim 6,
Wherein the cleaning step further comprises transferring the liquid release material to the cleaning brush before cleaning the pressurizing part. The method according to any one of claims 3, 6, and 7,
Wherein the solid release material comprises at least one of polyethylene, Teflon, paraffin, and polyvinyl alcohol,
Wherein the liquid release material comprises at least one of volatile solvent, light oil, silicone release agent, and vegetable oil. A mixing tank for mixing the polymer binder for base layer and the base aggregate to discharge the polymer concrete for the base layer, and blending the polymer binder for the surface layer and the surface aggregate to discharge the polymer concrete for the surface layer;
A pressurizing unit that pressurizes the polymer concrete for a base layer and the polymer concrete for a surface layer to a pressing surface to form a polymer concrete block;
A forming mold positioned below the pressing surface to receive the polymer concrete for the base layer and the polymer concrete for the surface layer;
A flow hopper for a base layer for supplying the forming polymeric concrete to the forming mold; And a surface hopper for supplying the surface layer polymer concrete to the forming hopper; And
And a supply part for receiving the polymer concrete for the surface layer discharged from the mixing tank and supplying the polymer concrete for the base layer to the flow hopper for the surface layer and for supplying the polymer concrete for the base layer discharged from the mixing tank to the flow hopper for the base layer,
Wherein the pouring portion and the supplying portion are applied with a solid or liquid release material. 10. The method of claim 9,
Wherein the mixing tank discharges the cement concrete by mixing the cement binder with the base aggregate instead of discharging the polymer concrete for the base layer,
Wherein the pressurizing portion pressurizes the cement concrete instead of pressurizing the polymer concrete for the base layer. 10. The method of claim 9,
Wherein the mixing tank is applied with a solid or liquid release material. delete delete 10. The method of claim 9,
Wherein the pouring portion further comprises a cleaning brush connected to the surface layer flow hopper,
Wherein the cleaning brush is adapted to clean the pressure surface in contact with the pressure surface in accordance with operation of the surface layer flow hopper. 15. The method of claim 14,
Wherein the brush bristles of the cleaning brush are made of the release material of a solid phase. 15. The method of claim 14,
Wherein the cleaning brush includes a hollow brush bar and a brush formed on the brush bar, wherein a plurality of pores are formed on an outer circumferential surface of the brush bar, and the liquid release material is flowed and transferred through the pores. Concrete block manufacturing equipment. The method according to any one of claims 9, 14, 15, and 16,
Wherein the solid release material comprises at least one of polyethylene, teflon, paraffin, and polyvinyl alcohol
Wherein the liquid release material comprises at least one of volatile solvent, light oil, silicone release agent, and vegetable oil. A base layer having a water permeability coefficient of 0.16 cm / sec or more and a surface layer
The base layer includes a base layer aggregate having a particle size of 5 mm or more and a polymer binder for a base layer,
Wherein the surface layer comprises a polymer binder for a surface layer using a single-sided and granular surface layer aggregate having a particle size of 5 mm or less and using an adhesive strength of a binder coated surface, the water absorption is within 4%
The polymer binder for the base layer and the polymer binder for the surface layer are composed of a base and a curing agent,
The subject matter includes eco-friendly bio-polyols and rigid polyols,
Wherein the curing agent is a first curing agent comprising an isocyanate compound; And a second curing agent comprising an isocyanate compound and a soft polyol,
The viscosity of the subject is 600-5500 cps / 23 < 0 > C,
Wherein the first curing agent has a viscosity of 170 to 250 cps / 23 占 폚 and the second curing agent has a viscosity of 300 to 1400 cps / 23 占 폚. delete delete 19. The method of claim 18,
The base layer is composed of 92 to 98% by weight of a base layer aggregate and 2 to 8% by weight of a polymer binder for a base layer,
Wherein the surface layer is composed of 92% to 98% by weight of the surface layer aggregate and 2% to 8% by weight of the polymer binder for the surface layer, and the strength is realized by using the bonding strength with the coating surface of the binder Concrete blocks. 19. The method of claim 18,
Wherein the base layer comprises a cement binder in place of the polymer binder for the base layer. 23. The method of claim 22,
Wherein the NCO groups contained in the polymer binder for the surface layer and the OH groups contained in the process of producing the cement binder are bonded by polyurethane polymerization reaction.

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