KR101450669B1 - Changing method for artificial turf in stadium - Google Patents

Abstract

The present invention relates to a method of manufacturing an artificial turf, which comprises a perforating step of processing a drain hole portion in a first artificial turf to be a replacement object, a first filling step of filling a repair material in the drain hole portion, a cutting step of cutting the rim of the first artificial turf, A second filling step of filling the rim of the playground in which the lawn is removed, and a repairing step of laying a new second artificial turf on the upper surface of the first artificial turf.

Description

{CHANGING METHOD FOR ARTIFICIAL TURF IN STADIUM}

The present invention relates to a method of replacing artificial turf for a playground, and more particularly, to a method of replacing artificial turf for a playground, which can reduce the amount of waste generated while discarding artificial turf, Replacement method.

General artificial turf is a substitute for artificial turf with synthetic fiber as a material. Since it was first produced in the United States in 1956, it has been mainly used for sports grounds such as baseball, soccer, and golf. It can be used in places like an open indoors that are not possible or an outdoor area to the north of a tall building with limited sunshine hours.

The artificial turf structure comprises a bubble layer, a pile formed by hitting the yarn on the bubble layer, and a support layer formed on the lower surface of the bubble layer. And a filling layer formed by filling the filling material.

The file was originally developed for nylon, but is gradually being replaced by polyethylene or polypropylene to reduce friction.

In the case of forming a pile with the lacelle method or the mock method in which the yarn is weaved, a tufting method in which a large amount of pile can be formed after mainly using a base material of a polyester (PET) material is developed, Shaped bubble paper is often used.

The support layer is a layer for reinforcing the morphological stability of the artificial turf structure, reducing the noise, strengthening the tear strength, and enhancing the drawing strength of the pile. Mostly acrylic resin and styrene-butadiene rubber (SBR) are used. Research on materials has been actively pursued.

For example, a two-component reactive polyurethane material is commercially available as a material capable of realizing a high elasticity and a high drawing strength.

Therefore, the two-component reactive polyurethane is expensive, and it is difficult to keep the proper magnification constantly in the continuous two-liquid reaction process, resulting in poor physical properties.

On the other hand, the artificial turf structure is replaced when the function of natural turf is lost after a certain period of use. In recent years, due to the improvement of the leisure and welfare level of leisure life, have.

In order to prevent this, it is important to recycle artificial turf structures that have been used for a long time. Common artificial turf structures include materials such as polyethylene or polypropylene, acrylic resin, styrene-butadiene rubber (SBR), polyurethane, This may be difficult or requires a complicated process for recycling.

Even when the silica sand is separated separately, the application fields of the recycled materials are very limited because the polymers having different physical properties such as polyethylene or polypropylene, acrylic resin, styrene-butadiene rubber (SBR) and polyurethane are mixed.

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Registration No. 10-1009385 (published on Jan. 19, 2011, entitled "Method for manufacturing recyclable artificial turf structure and recycling method thereof").

In general, the method of replacing artificial turf can not reduce the time required to remove the artificial turf because the artificial turf is installed after disposing and removing all the artificial turf. Therefore, There is a problem that it is difficult to reduce the amount.

Therefore, there is a need for improvement.

An object of the present invention is to provide a method of replacing artificial turf for a playground, which can shorten the period of time required for replacing artificial turf by reducing the amount of waste generated while discarding artificial turf.

(A) a step of drilling a drain hole portion in a first artificial turf which is a replacement object; (b) a first filling step of filling the drain holes with a repair material; (c) a cutting step of cutting the rim of the first artificial turf; (d) a second filling step of filling the rim of the playground from which the first artificial grass is removed, the maintenance material; And (e) a second artificial grass laid on the top surface of the first artificial turf.

In addition, the present invention provides a method of manufacturing an artificial grass, comprising: a removing step of cutting and removing the first artificial turf at a ground settlement site after the step (d); And a repairing step of performing a leveling operation on the ground settlement area and filling the ground settlement area with the repairing material.

In addition, the second artificial turf of the present invention is thinner than the first artificial turf.

The repair material of the present invention may further comprise a binder to be added in a proportion of 18 to 20% by weight, an aggregate added in a proportion of 20 to 30% by weight, a rubber chip to be added in a proportion of 40 to 50% .

Further, the aggregate of the present invention is characterized by comprising crushed stone having a particle size of 10 to 17 mm.

The artificial turf replacement method for a playground according to the present invention can reduce the amount of waste generated by the artificial turf replacement work because it is possible to install a new artificial turf without removing the existing artificial turf, There is an advantage that the period of time can be shortened.

In addition, the method for replacing artificial turf for a playground according to the present invention is a method of replacing artificial turf for a playground by processing a drain hole portion in a conventional artificial turf and filling a drain hole portion with a water repellent repairing material, It can be drained and there is an advantage that water can be prevented from being put on artificial turf.

In addition, in the artificial turf replacement method for a playground according to the present invention, existing artificial turf installed on the rim of a playground is removed, and the maintenance material is filled in the space between the boundary stone forming the boundary of the track and the artificial turf, So that it is possible to prevent a step from being formed between the portion where the artificial turf is removed and the portion where the artificial turf is removed.

In addition, in the method for replacing artificial turf for a playground according to the present invention, a repair material formed by mixing an aggregate and a rubber chip is filled in a drain hole portion and an artificial turf incision site, so that after a new artificial turf is installed, And it is advantageous that the repairing work can be carried out by filling the repair material in the place where the ground is settled.

In addition, the artificial turf replacement method for a playground according to the present invention reduces the content of a rubber chip by 50% as compared with a conventional artificial turf because a new artificial turf is constructed on a top surface of a conventional artificial turf, It is possible to provide a sufficient elasticity even when it is applied, and there is an advantage that the construction cost for the artificial turf construction can be reduced.

FIG. 1 is a view showing a step of punching a method of replacing artificial turf for a playground according to an embodiment of the present invention.
FIG. 2 is a view illustrating a cutting step of a method for replacing artificial turf for a playground according to an embodiment of the present invention. Referring to FIG.
FIG. 3 is a view illustrating an installation step of a method for replacing artificial turf for a playground according to an embodiment of the present invention.

Hereinafter, an embodiment of a method for replacing artificial turf for a playground according to the present invention will be described with reference to the accompanying drawings.

In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator.

Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a view showing a piercing step of a method for replacing artificial turf for a playground according to an embodiment of the present invention, and FIG. 2 is a view showing a cutting step of a method for replacing artificial turf for a playground according to an embodiment of the present invention FIG. 3 is a view illustrating an installation step of a method for replacing artificial turf for a playground according to an embodiment of the present invention.

1 to 3, a method of replacing artificial turf for a playground according to an embodiment of the present invention includes a drilling step of processing a drain hole portion 52 in a first artificial turf 10 as a replacement object, A cutting step of cutting the rim of the first artificial turf 10 and a cutting step of cutting off the rim of the first artificial turf 10 and the repair material 70 A second filling step of filling the first artificial turf 10 with a new artificial turf 10 and a new artificial turf 30 on the upper surface of the first artificial turf 10.

After the artificial turf is installed, replacement work is performed when the artificial turf has reached the end of its life. In this embodiment, the first artificial turf 10 is not removed, The replacement artificial turf is completed by drilling the drain hole portion 52 and installing a new second artificial turf 30 on the upper surface of the first artificial turf 10. [

Accordingly, the amount of the first artificial turf 10 to be removed is reduced, thereby reducing the amount of waste generated by the artificial turf replacement operation.

The drain hole portion 52 formed in the first artificial turf 10 discharges the moisture discharged from the second artificial turf 30 to the ground and the maintenance material 70 filled in the drain hole portion 52 is discharged It is possible to prevent a step from being formed between the first artificial turf 10 and the drain hole 52 in which the hole 52 is not formed.

The rim of the first artificial turf 10 is cut and the first artificial turf 10 is filled with the repair material 70 on the rim of the cutter so that water gathering toward the rim of the playground can be smoothly drained .

The artificial turf grass generally has a spherical power of about 0.5% at the edge of a playground to prevent the water from accumulating in the playground. In this embodiment, So that it is possible to prevent moisture from being accumulated in the second artificial turf 30.

Since the repair material 70 filled in the rim of the playground is curved and curved toward the boundary stone 54 between the track and the artificial turf, moisture accumulated in the second artificial turf 30 flows toward the edge of the playground, (70).

In this embodiment, after the second filling step, the first artificial turf 10 of the ground settlement area is cut and removed, and a planarizing operation is performed on the ground settlement area, and the maintenance material 70 is placed on the ground settlement area And a filling and repairing step.

When the artificial turf field is used for a long period of time, the first artificial turf 10 may be lowered concavely due to the ground settlement. The first artificial turf 10 in the area where the ground is settled is cut , The repair material 70 is filled after the ground leveling work so that the first artificial turf 10 performs the maintenance work so as to have the same height as other uncut portions.

Thereafter, when the second artificial turf 30 is installed, the second artificial turf 30 can be installed at a uniform height while maintaining the same height as the other parts of the ground subsidence.

The second artificial turf 30 of the present embodiment is formed thinner than the first artificial turf 10.

This is because the second artificial turf 30 is installed on the upper surface of the existing first artificial turf 10 so that the elastic force required from the first artificial turf 10 is somewhat satisfactory So that the thickness of the second artificial turf 30 can be reduced.

The first artificial turf 10 includes a first bubble layer 12, a first pile 18 formed by raising a yarn on the first bubble layer 12, And a first filling layer 16 formed on an upper surface of the first bubble layer 12. The first supporting layer 14 is formed on the first bubble layer 12,

The second artificial turf 30 includes a second bubble layer 32, a second pile 38 formed by raising a yarn on the second bubble layer 32, And a second filling layer 36 formed on the upper surface of the second bubble layer 32. As shown in FIG.

Since the second filling layer 36 is formed thinner than the first filling layer 16, the production cost of the second artificial turf 30 can be reduced, and the construction cost required for the work for repairing the artificial turf is reduced Effect will appear.

When the artificial turf is installed for the first time, the synthetic turf having a thickness of about 55 mm is required to provide the elastic force required by the artificial turf field. However, in the present embodiment, The second artificial turf 30 can provide the elastic force required for artificial turf even if artificial turf having a thickness of about 35 mm which is thinner than the second filling layer 36 is applied.

In addition, when the artificial turf is installed for the first time, a filling layer containing about 12 to 13 kg of rubber chips is required for artificial turf of 1 m length and 1 m length, but the rubber chip included in the second filling layer 36 of this embodiment Even if rubber chips of about 6 to 7 kg are included, it is possible to provide elasticity required in an artificial turf field.

Accordingly, the present embodiment can reduce the unit cost of artificial turf required to replace artificial turf, thereby reducing the construction cost required for replacing artificial turf.

The repair material 70 includes an aggregate added at a ratio of 20 to 40 parts by weight, a rubber chip added at a ratio of 40 to 60 parts by weight, and a binder added at a ratio of 15 to 25 parts by weight.

The maintenance material 70 is required to have a strength higher than a set value so as to prevent the second artificial turf 30 from sinking and an elastic force not less than a set value is required for improving the performance of athletes playing in artificial turf.

Therefore, the repairing material 70 of the present embodiment includes an aggregate for providing strength and a rubber chip for providing an elastic force, and is mixed with a binder that acts as an adhesive, and a ground surface is laid.

Since the aggregate includes crushed stone having a particle size of 10 to 17 mm, it is possible to provide drainage ability required in an artificial turf field.

≪ Example 1 >

And a binder to be added in a ratio of 25 wt%, and the drain hole portion 52, the drain hole portion 52, The repair material 70 prepared by the above-described method is filled in the rim and ground subsidence area of the artificial turf 10, and the second artificial turf 30 is installed to repair the synthetic turf field.

≪ Example 2 >

And a binder to be added in a ratio of 20 wt%, and the drain hole portion 52, the drain hole portion 52, The repair material 70 prepared by the above-described method is filled in the rim and ground subsidence area of the artificial turf 10, and the second artificial turf 30 is installed to repair the synthetic turf field.

≪ Example 3 >

And a binder to be added in a ratio of 15 wt%, and the drain hole portion 52, the drain hole portion 52, The repair material 70 prepared by the above-described method is filled in the rim and ground subsidence area of the artificial turf 10, and the second artificial turf 30 is installed to repair the synthetic turf field.

<Example 4>

And a binder to be added in a ratio of 25 wt%, the repairing material 70 is manufactured, and the drain hole portion 52, the drain hole portion 52, The repair material 70 prepared by the above-described method is filled in the rim and ground subsidence area of the artificial turf 10, and the second artificial turf 30 is installed to repair the synthetic turf field.

&Lt; Example 5 >

And a binder to be added in a ratio of 20% by weight, and the drain hole portion 52, the drain hole portion 52, The repair material 70 prepared by the above-described method is filled in the rim and ground subsidence area of the artificial turf 10, and the second artificial turf 30 is installed to repair the synthetic turf field.

&Lt; Comparative Example 1 &

A repair material 70 is manufactured including the aggregate added at a ratio of 15 wt%, the rubber chip added at a ratio of 60 wt%, and the binder added at a ratio of 25 wt%, and the drain hole portion 52, The repair material 70 prepared by the above-described method is filled in the rim and ground subsidence area of the artificial turf 10, and the second artificial turf 30 is installed to repair the synthetic turf field.

&Lt; Comparative Example 2 &

And a binder to be added in a proportion of 20% by weight to prepare a repair material 70, and the drain hole portion 52, The repair material 70 prepared by the above-described method is filled in the rim and ground subsidence area of the artificial turf 10, and the second artificial turf 30 is installed to repair the synthetic turf field.

As shown in Table 1, when the composition ratio of the aggregate is less than 20% by weight, the strength of the ground supporting the artificial turf is lowered as in Comparative Example 1, and the strength of the artificial turf is also remarkably lowered .

Strength (gf / denier) Elastic descent height (mm) Example 1 87.0 1.888 Example 2 88.6 1.852 Example 3 89.2 1.457 Example 4 82.3 1.954 Example 5 81.6 2.125 Comparative Example 1 43.5 1.929 Comparative Example 2 86.2 0.896

Further, even when the composition ratio of the aggregate exceeds 40% by weight, the strength of the ground supporting the artificial turf is not significantly increased, and thus the strength of the artificial turf is not significantly increased.

When the composition ratio of the rubber chips contained in the repair material 70 is less than 40% by weight, the modulus of elasticity of the ground supporting the artificial turf is decreased as in Comparative Example 2, and the elastic lowering height of the artificial turf is lowered, Can not be satisfied.

In addition, when the composition ratio of the rubber chips contained in the repair material 70 exceeds 60 wt%, it can be seen that the elastic descent height is not remarkably increased as in Comparative Example 1.

Also, when the particle size of the aggregate is less than 10 mm, voids of the repair material 70 are reduced to fail to satisfy the drainage rate of artificial turf. If the particle size of the aggregate exceeds 17 mm, aggregates of large particle size are projected upward, A problem may arise where the operation is inadequate.

It is possible to provide a method of replacing artificial turf for a playground which can reduce the amount of waste generated while discarding artificial turf and reduce the period of time required for replacing artificial turf when constructing on the basis of the above- do.

Reference numeral 54 denotes a boundary stone 54 provided between the playground and the track.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

In addition, although the method of replacing artificial turf for a playground has been described as an example, the artificial turf replacement method of the present invention can also be used for other products other than the artificial turf replacement method for a playground.

Accordingly, the true scope of the present invention should be determined by the following claims.

10: first artificial turf 12: first bubble layer
14: first supporting layer 16: first filling layer
18: first file 30: second artificial turf
32: second bubble layer 34: second support layer
36: second filling layer 38: second file
52: drain hole portion 54:
70: Repairs

Claims (5)

A drilling step of processing a drain hole part in the first artificial turf as a replacement object; A first filling step of filling the drain holes with a repair material; And a second artificial turf laid on the top surface of the first artificial turf so as to be adhered to the first artificial turf,
A cutting step of cutting the rim of the first artificial turf after the first filling step; And
Further comprising a second filling step of filling the rim of the playground from which the first artificial turf is removed,
The maintenance material filled in the rim of the playground is inclinedly formed as a curved surface facing the boundary stone installed between the track and the artificial turf;
Wherein the repair material comprises an aggregate added in a ratio of 20 to 40 parts by weight, a rubber chip added in a proportion of 40 to 60 parts by weight, and a binder added in a proportion of 15 to 25 parts by weight How to replace.
The method according to claim 1,
Removing the first artificial turf in the ground settlement area after the step (d); And
Further comprising a repairing step of performing a leveling operation on the ground settlement area and filling the ground settlement area with the repairing material.
3. The method according to claim 1 or 2,
Wherein the second artificial turf is thinner than the first artificial turf.
delete The method according to claim 1,
Wherein the aggregate comprises a crushed stone having a particle size of 10 to 17 mm.

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