JPH06108406A - Execution method of surface layer of all weather type pavement body of athletic field, etc. - Google Patents

Abstract

PURPOSE:To obtain the surface layer of all weather type pavement body of an athletic field, etc., which has the excellent sticking tendency of a topping material and in which proper irregularities are maintained under a uniform state and a functional side such as the prevention of lateral vibrations is improved. CONSTITUTION:The upper section of the surface of a base layer 2 is covered with an intermediate layer 3 composed of a polyurethane synthetic resin, etc., and a topping material 4 is scattered and fixed before the intermediate layer 3 is cured. The clearances of the topping material 4 are filled with fillers 4 constituted of a synthetic resin such as polyurethane.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a surface layer of a ground mainly for an athletic stadium, and more specifically, for an all-weather pavement in which a topping material such as an elastic chip is sprinkled and fixed on the surface layer. The present invention relates to a surface layer construction method for an all-weather pavement such as an athletic stadium that can firmly adhere to a surface layer without peeling off a topping material.

[0002]

2. Description of the Related Art As an all-weather pavement for athletics stadiums, a pavement made of polyurethane synthetic resin pavement or a composite elastic pavement made by laminating a urethane layer on a rubber chip layer on a base such as asphalt pavement is widely used. is doing. Since the surface of these pavement materials is slippery as they are, for example, as shown in Japanese Patent Publication No. 52-6542, a topping material composed of fine particles of urethane resin is sprinkled before the pavement material is cured, and the surface is left as it is. It has been proposed in the past to harden the pavement material to fix the fine particles and to make the fine particles protrude from the surface to prevent slipping. However, if the topping material is simply sprinkled on the pavement material in this manner, the adhesive force between the topping material and the pavement material will be weak, and the topping material will easily fall off.

In order to improve this drawback, Japanese Examined Patent Publication No. 61-3
In the pavement method described in Japanese Patent No. 7402, after curing the pavement material, a polyurethane-based synthetic resin is flowed over the pavement material and, at the same time, a polyurethane-based synthetic resin topping material is sprayed to fix the lower portion of the topping material. Then, a polyurethane-based synthetic resin coating material is applied on the top surface of the topping material, and a coating layer having a thickness of 0.1 to 0.5 mm is provided to prevent the topping material from peeling and improve the adhesive strength. At the same time, it makes it difficult for dust to adhere to the pavement surface.
By covering the upper surface of the topping material with the covering material, peeling of the topping material can be prevented as compared with the topping fixing method of the above Japanese Patent Publication No. 52-6542, but with the thickness of the covering material as described above, the topping material during running. It is not possible to prevent sideways movement of the car, and it has not been improved in terms of functions such as energy loss during running and skid prevention.

Therefore, in recent years, in order to improve such a functional surface, a method of spraying a mixed material of a synthetic resin and a topping material to form irregularities, or a synthetic resin having a high thixotropy index (Tl) is wavy with a roller brush or the like. A construction method is also used.

[0005]

However, the method of construction, which is carried out with the aim of improving such functional aspects, is sensitive to the outside temperature, wind, sunshine, etc. during construction.
It is a very difficult situation to obtain a uniform surface layer.
For example, the spraying method has good workability and provides a good surface layer in an environment where the outside air temperature and wind are good, but when it is installed in the presence of wind, unevenness due to spraying tends to occur, and roller spraying etc. However, it is difficult to obtain a uniform surface due to the temperature and sunshine with the painting method. Furthermore,
The surface formed by the roller brush method is slippery in rainy weather,
In addition, there are concerns that spikes and other scratches are likely to occur.

[0006] Therefore, the object of the present invention is to use a topping material spraying method, which is a well-established technique that is less affected by the environment during construction and has a uniform surface texture. To provide a surface layer construction method for an all-weather pavement such as an athletic stadium in which the functional aspects such as the prevention of side shake and the prevention of energy loss are improved while maintaining the uniform state.

[0007]

According to the present invention, a base layer such as a polyurethane synthetic resin pavement material or a composite elastic pavement material in which a polyurethane layer is laminated on a rubber chip layer is laminated on a base material such as concrete or asphalt pavement. ,
A surface layer construction method for all-weather pavements such as athletic stadiums in which a topping material such as an elastic topping material made by crushing or granulating natural or synthetic rubber or elastic synthetic resin is fixed on the surface layer of the pavement material. An intermediate layer made of polyurethane-based synthetic resin, etc. is applied on the surface of the layer, and a topping material is sprayed and fixed before the intermediate layer is cured, and then a polyurethane-based synthetic resin or the like is placed in the gap between the topping materials. It is characterized by filling the constituted filler.

In this case, it is preferable that the thickness of the filler is 1/3 or more of the maximum grain size of the topping material.

[0009]

As described above, according to the surface layer applying method of the present invention, since the lower part of the topping material is fixed to the intermediate layer and the gap between the topping materials is filled with the filling material, the fixing of the topping material becomes strong, Almost no peeling of the topping material against strong impact during driving, and above all, loss of energy when the foot kicks the paved surface during traveling, and centrifugal force when traveling at the corner of the truck It is possible to improve the function, such as reducing the feeling of lateral shake. In this way, the firm adhesion of the topping material does not peel off even if a strong brush pressure is applied even for cleaning, cleaning is easy, the surface can be kept in a beautiful state at all times, and management is also easy. .

Further, by filling the thickness of the filler with a thickness of ⅓ or more of the maximum particle size length of the topping material, the holding of the topping material and the prevention of side shake become more reliable.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention shown in the drawings will be described below. FIG. 1 shows a part of an all-weather pavement constructed according to the present invention in a cutaway view. The structure of this pavement will be described according to the construction order.

On a base 1 made of concrete pavement, asphalt pavement or the like having the same construction as the conventional one, there are 5 to 5 base layers 2 made of an elastic pavement material mainly composed of polyurethane synthetic resin or rubber chip urethane material. 25 mm
It is laid out evenly and is cured and cured. When a rubber tip urethane material is used, a mixture of rubber tip and urethane prepolymer should be spread to a thickness of 5 to 25 mm, and the mixture should be cured and cured. After that, the surface should be sealed with a polyurethane synthetic resin or the like. It may be used, or a resin may be applied and cured and cured to a thickness of 1 to 6 mm after curing. The thickness of the base layer 2 is selected according to the purpose of use of the paving material.

When the base layer 2 is made of polyurethane synthetic resin, the polyurethane synthetic resin pavement material is
Consists of two components (two-component urethane resin), component A and component B, with component A having an isocyanate group (NCO) at the end.
It is a urethane prepolymer having ## STR3 ## and is synthesized from an organic polyisocyanate and a polyol having two or more active hydrogens.

Examples of such organic polyisocyanates include tolylene diisocyanate (TDI), diphenylmethane-4,4'-diisone anate (MD).
I), naphthalene-1,5-diisocyanate (ND
I), 3,3'-dimethyl-4,4'-biphenylene diisocyanate (TODI), xylylene diisocyanate (XDI), dicyclohexylmethane-4,4'-
Examples include diisocyanate (HMDI), isophorone diisocyanate (IPDI), hexamethylene diisocyanate (HDI), bis (isocyanatomethyl) cyclohexane (H XDI), polymethylene polyphenyl isocyanate (crude MDI), etc. Particularly preferred are tolylene diisocyanate and diphenylmethane-4,4 'diisocyanate. These may be used alone or in combination of two or more.

Examples of the polyol having an active hydrogen group to be combined with these polyisocyanates include ethylene glycol, propylene glycol,
Low molecular weight polyols such as butylene glycol, hexanediol, trimethylolpropane, and neopentyl glycol, poly (oxypropylene) polyol, poly (oxyethylenepropylene) polyol, poly (oxytetramethylene) glycol, poly (caprolactone) Polymer polyols such as polyols, poly (butylene carbonate) polyols, poly (hexamethylene carbonate) polyols, poly (propylene adipate) diols, and poly (ptyrene adipate) diols are mentioned, but particularly preferable ones are: They are poly (oxypropylene) polyols and poly (oxyethylene propylene) polyols.

The component B is a polyol and a polyamine having active hydrogen, and the polyols include
Substantially all of the above polyols are included. Examples of polyamines include ethylenediamine,
Propylenediamine, hexamethylenediamine, cyclohexylenediamine, naphthylenediamine, diaminodiphenylmethane, phenylenediamine, tolylenediamine, xylenediamine and 3,3'-dichloro-4,
4'-diaminodiphenylmethane etc. are mentioned. These B components may be used alone or in combination of two or more.

Upon application, these two-component polyurethane pavement materials are mixed and used in predetermined amounts, and polyurethane is formed by the reaction of both components.

Further, the component B may be appropriately mixed with plasticizers, fillers, pigments, catalysts, thixotropic agents and the like known as additives for polyurethane pavement materials.
As the aggregate for increasing the amount, crushed products of rubber products such as tires, belt conveyors and automobile bumpers and various plastic products can also be blended.

Typical examples of the plasticizer include diptyl phthalate, dioctyl phthalate, dioctyl adipate, and tricresyl phosphate. Examples of the fillers include barite, calcium carbide, kaolin, clay, mica, talc and the like. Furthermore, examples of the pigment include inorganic pigments and organic pigments used in general paints.

On the other hand, when the base layer 2 is made of a rubber chip urethane material, a rubber chip mixed material and a polyurethane resin are used. The polyurethane-based synthetic resin is as described above, but the rubber chip mixed material is composed of rubber chips and urethane prepolymer. Examples of materials for the rubber chips include natural rubber (NR) and styrene-butadiene rubber (S
BR), isoprene rubber (IR), chloroprene rubber (CR), ethylene / propylene rubber (EPDM) and urethane rubber. These may be used alone or in combination of two or more. These rubber chips have a particle size of 0.5 to 5.0.
mm is common, and hardness is 30-80 (J
ISA hardness) is suitable. The urethane prepolymer includes the component A of the elastic pavement material described above.

The rubber chip mixed material is used by mixing a predetermined amount of the rubber chip and the urethane prepolymer at the time of application, but in addition to this, a plasticizer, a filler, a pigment, a catalyst, a thixotropic agent and the like can be appropriately blended.

On the upper surface of the base layer 2, an intermediate layer 3 made of the same material as the polyurethane synthetic resin forming the above-mentioned base layer 2 is applied to a thickness of 1 to 3 mm, and the resin of the intermediate layer is cured. Before, the topping material 4 composed of elastic chips having a particle size of about 1 to 6 mm is sprinkled. After the resin of the intermediate layer 3 is cured and the lower portion of the topping material 4 is fixed, the surplus chips are collected and removed.

As the topping material 4 to be sprinkled on the surface, for example, styrene-butadiene rubber (SBR), acrylotrinyl-butadiene rubber (NBR), butadiene rubber (BR), isoprene rubber (IR), chloroprene rubber (CR), Ethylene / propylene rubber (EP
R), ethylene propylene diene rubber (EPDM) and ureta rubber. These may be used alone or in combination of two or more. Further, the topping material 4 may be a crushed resin lump or a resin foam. Furthermore, JIS
Regarding the A hardness, many of those used under the conventional method are in the range of 40 to 60, and those of 50 or more are often seen. It is desirable that the anti-vibration property, the anti-slip property, and the running feeling are excellent. For example, the JIS A hardness is 40 to 70, the impact resilience is 30% or more, and the particle size is 2 to 5 mm. Depending on the purpose of use, it may be about 75.

After removing the topping material 4 not adhered to the intermediate layer 3, an elastic filler 5 such as a polyurethane-based synthetic resin is uniformly applied to the surface of the adhered topping material 4,
After these are flowed down, an appropriate packing layer is formed in the gap between the chips. The same elastic filler 5 may be applied once or twice or more, or different elastic fillers may be applied several times.

As the elastic filler 5, any one of two-component urethane resin, moisture-curable one-component urethane resin, solution-type thermoplastic urethane resin and emulsion-type urethane resin may be used. Good, but particularly preferred are formulations based on two-part urethane resins. This formulation includes all of the A and B components described for base layer 2 above. The hardness of the filler is
As a result of research, relatively soft JIS A hardness of 35-6
Those of about 0 were good.

The thickness of the elastic filler 5 varies depending on the particle size of the chips. If the thickness is too thin, the effects of sticking the chips and the prevention of lateral shake cannot be obtained sufficiently, and if the thickness is too thick, slippage is likely to occur. There is a decrease in performance. According to the results of research, the maximum particle size is 20 to 70%, preferably 30 to 50%
The degree was the best. Particularly, in the case of an athletics track, it is preferable to use a topping material 4 having a particle size of 2 to 5 mm and an elastic filler having a thickness of 1/3 or more of the maximum particle size of the topping material 4. Results were obtained.

The base layer 2, the intermediate layer 3 and the filler 5 should be able to sufficiently follow the cracks of the concrete or asphalt concrete base over time and satisfy the physical properties required for an all-weather elastic pavement material. For example, the elongation at break is 400% or more, the tensile strength is 25 Kgf / square cm or more, and the tear strength is 12 or more.
It is preferably Kgf / cm or more, the water absorption rate is 2.0% or less, the heat expansion / contraction rate is 1% or less, and the impact resilience is 30 or more.

Hereinafter, the present invention will be described in more detail with reference to specific experimental examples.

[Experimental Example 1] In Experimental Example 1, the base layer 2 was used.
Is made of a paving material similar to that of the mid layer 3. The base layer 2 and the intermediate layer 3 are described as paving materials, and the B component of the paving material and the B component of the filling material 5 are slightly different. Therefore, the B component of the paving material is B1, and B component of B2
As described below. (1) Description of Materials Synthesis of Component A of Paving Material Tolylene diisocyanate 177 parts (parts by weight, the same applies hereinafter), polyoxypropylene glycol 323 parts having a molecular weight of 2000, 484 parts polyoxypropylene triol having a molecular weight of 5000 and 1,4- Butylene glycol 1
5 parts were charged into a reactor, heated to about 80 ° C. while stirring under a nitrogen stream, and subjected to a urethanization reaction for 7 to 8 hours, and a transparent viscous substance having a viscosity of 9500 cps / 25 ° C. and an isocyanate group content of 4.3%. A thick liquid was obtained.

Adjustment of B1 component of paving material 37 parts of 4,4'-diamino-3,3'-dichlorodiphenylmethane, 130 parts of polyoxypropylene glycol having a molecular weight of 3000, 121 parts of polyoxypropylene triol having a molecular weight of 5000, and dioctyl phthalate 152.
Part, calcium carbonate 515 parts, red iron oxide 25 parts, 20%
14 parts of lead octylate and 1 part of the leveling agent are premixed by a mixer, and then kneaded and dispersed by a three-roll mill,
A color viscous product having a viscosity of 25,000 cps / 25 ° C. was obtained.

Adjustment of B2 Component of Filler 37 parts of 4,4'diamino-3,3'dichlorodiphenylmethane, 121 parts of polyoxypropylene glycol having a molecular weight of 3000, 152 parts of dioctyl phthalate, 475 parts of calcium carbonate, 40 parts of red iron oxide, shaken 25 parts of the modifier and 20 parts of 20% lead octylate were premixed with a mixer and then kneaded with a twin-screw mixer to obtain a color viscous product with a thixotropic degree of 4.8.

The mixing ratios of the materials obtained by the above method are as follows.

Pavement material A component / B1 component = 100/200 (weight ratio, the same below) Filler A component / B2 component = 100/200 Topping material The above-mentioned pavement material is solidified and crushed as a resin lump to form granules. Those having diameters in the range of 2 to 5 mm were used. (2) Construction method 100% of the components A and B1 obtained as described above
Mix and stir at a rate of 200, and 11.7K per square meter
smooth g using a trowel and let stand for 15 hours to give a thickness of 9
A base layer of mm was obtained. Spread the same material on this base layer with a 2 kg squeegee rake per square meter.
A topping material having a diameter of 5 mm was evenly sprayed at 7 kg per square meter, and after 10 hours, the surplus topping material that had not been fixed was recovered, and then the A component, B2 component, and xylene obtained in Experimental Example 1 were added to 100/200/60. Mix and stir at a ratio of
After spraying 1.1 kg per square meter and leaving it for 15 hours, a finishing layer having irregularities was obtained. The thickness of the filler in the gap of the topping material at this time was about 1.6 mm. (3) Confirmation of effect A pavement body according to the present invention (referred to as a test body A) provided with a filling layer by the above method and a conventional type which is constructed with the same material and method and is not provided with only the filling material. Things ((2) above
In the construction method of (1), a finished product is obtained by collecting the excess topping material and is referred to as a test body B).
We compared various items.

A. Peeling of the topping material For both of the size of 1m x 1m, a trampling test was conducted 10,000 times with spike shoes equipped with a 7mm spike pin. It was only 18%.

Detachment amount of topping material in test body A 78 g Detachment amount of topping material in test body B 430 g 78 ÷ 430 = 18% b. Energy loss during traveling The energy loss during traveling of both pavement materials was investigated by absorbing the collision applied to the pavement surface. The measured value is the average time during which the spike touches the pavement material when traveling a short distance T
= The impact absorption of the pavement material for 0.1 seconds was examined. As a result, the impact absorbency of the test body A is 8 compared with the test body B.
It was as low as 4%, and it was confirmed that the energy loss was small.

Floor reaction force when an object is dropped on concrete
Fo = 1500N Floor reaction force when the same object is dropped on test body A
Fa = 1461N Floor reaction force when the same object is dropped on test body B
Fb = 1453N When these floor reaction force damping rates FR are calculated, FRa = (Fo−Fa) /Fo=2.60% FRb = (Fo−Fb) /Fo=3.13% 2.60 ÷ 3.13 = 84% c. Sense of lateral movement at corners Create a test runway with a radius of 30m and a width of 1.25m, and
As a result of a questionnaire survey based on an actual running test by 10 athletes capable of running in the range of 10 to 11 seconds, it was proved that the test body A had less lateral shake than the test body B and was easier to run.

“Test body A was easier to run” 5 people (50
%) "Test body B was easier to run" 2 people (20
%) "I can't say either" 3 people (30
%) [Experimental Example 2] In Experimental Example 2, the base layer is made of a rubber chip. (1) Description of base layer material Synthesis of urethane prepolymer for mixing rubber chips Diphenylmethane-4,4'-diisocyanate 269
Parts, molecular weight 4000 polyoxyethylene propylene diol 416 parts, molecular weight 2000 polyoxypropylene diol 162 parts and molecular weight 1000 polyoxypropylene triol 57 parts were charged into a reactor and heated to about 75 ° C. with stirring under a nitrogen stream. Then, the urethane reaction is performed for 6 to 7 hours, and the viscosity is 4300 cps / 25.
A transparent viscous liquid having an isocyanate group content of 9.2% at ℃ was obtained.

Topping material A resin lump of ethylene-propylene rubber (EPDM) was crushed and used having a particle size in the range of 2 to 5 mm.

Paving Material for Sealing The paving material of the above-mentioned Experimental Example 1 to which 3% of Aerosil was added as a thixotropic material was used. (2) Construction method Rubber chip mixed material and mixing urethane prepolymer 10
After mixing at a ratio of 0:20, laying 8.5 kg per 1 sqm evenly and leveling it, and letting it stand for 15 hours to solidify, 1.5 kg / sq cm of a paving material for sealing was applied and left still for 15 hours. It was placed and solidified to obtain a base layer having a thickness of 10 mm. On this base layer, the same paving material as in Experimental Example 1 was applied with a squeegee rake of 1.5 kg per square meter, and after solidification, 2 kg of paving material was similarly spread and spread, and a topping material having a diameter of 2 to 5 mm was squared. After 5 hours of uniform spraying, and after 10 hours, the excess topping material that has not been adhered is recovered, the A component, B component and xylene obtained in Experimental Example 1 are used for 10 hours.
The mixture was mixed and stirred at a ratio of 0/200/60, applied with a 1.1 kg wool roller per square meter, and allowed to stand for 15 hours to obtain a finishing layer having unevenness. The thickness of the filling layer in the gap of the topping material at this time was about 1.4 mm. (3) Confirmation of Effect As in Experimental Example 1, the same material as the pavement according to the present invention (referred to as test piece A ′) provided with the filling layer by the method described above is used.
The conventional method in which the method was applied and only the filling layer was not applied (in the method of the above-mentioned (2), the state in which the excess topping material was collected was used as the finished product, and the test body B ′ was used.
, Which is called) is compared with respect to various items.

A. Detachment of topping material For both 1m x 1m size, a running test was conducted 10,000 times with spike shoes equipped with a 7mm spike pin. It was only 21% compared to the one without.

Amount of peeling of rubber topping material in test body A ′ 9
4g Peeling amount of rubber topping material in test body B'44
7 g 94 ÷ 447 = 21% b. Energy loss during running For both pavement materials, the energy loss during running was investigated by absorbing the collision applied to the pavement surface.
It became as follows. The measured value is when traveling a short distance,
The average time that a spike touches the pavement is T =
The impact absorption of the pavement material for 0.1 second was examined. As a result, it was confirmed that the impact absorbency of the test body A ′ was as low as 76% as compared with the test body B ′, and the energy loss was small.

Floor reaction force when an object is dropped on concrete
Fo = 1500N Floor reaction force when the same object is dropped on test body A '
Fa = 1457N Floor reaction force when the same object is dropped on the test body B '.
Fb = 1443N When these floor reaction force damping rates FR are calculated, FRa = (Fo−Fa) /Fo=2.87% FRb = (Fo−Fb) /Fo=3.80% 2.87 ÷ 3.80 = 76% C. Sense of lateral movement at corners Create a test runway with a radius of 30m and a width of 1.25m, and
When a questionnaire survey was conducted based on an actual running test by 10 athletes capable of running in the range of 10 to 11 seconds, it was proved that the one with the filling layer had less lateral shake and was easier to run.

“Test specimen A ′ was easier to run” 5 people (50
%) “Test body B'was easier to run.” 1 person (10
%) “I can't say either” 4 people (40
%) In the two experimental examples described above, the filler is applied by a spray or a wool roller to fill the gap between the tapping materials, but the filler is applied by a sponge roller or a sand-aggregate (mastic) roller. You may do it.

[0044]

As described above, according to the present invention, an intermediate layer composed of a polyurethane-based synthetic resin or the like is applied on the surface of a base layer, and a topping material is sprayed and fixed before the intermediate layer is cured. After that, since the gap of the topping material is filled with the filler made of synthetic resin such as polyurethane, the fixing of the topping material becomes firm, and the topping material can be fixed against strong scratching force due to spikes during running. Peeling can be almost eliminated. In addition, it is possible to improve the functional aspects such as energy loss when the foot kicks the pavement during traveling, and sideways swaying due to the action of centrifugal force when traveling in the corner portion of the truck.
The strong adherence of the topping material does not peel off even if a strong brush pressure is applied even for cleaning, cleaning becomes easy, the surface can always be kept in a beautiful state, and management becomes easy.

Further, as described in claim 2, by filling the thickness of the filling material with a thickness of 1/3 or more of the maximum particle size length of the topping material, the holding of the topping material is further ensured. , It is possible to more surely prevent the side movement and maximize the function.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing a part of an all-weather pavement made by an embodiment of a construction method of the present invention.

[Explanation of symbols]

 1 base 2 base layer 3 intermediate layer 4 topping material 5 filler

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Genzo Furukawa Genzo Furukawa 3-18-6 Shinohara Auntanoyama, Nada-ku, Kobe City, Hyogo Prefecture (72) Inventor Akio Yoneman 1-4-15 Kishimachi, Urawa City, Saitama Prefecture (72) Invention Person Arakawa Junichi 4-27-8 Kamima, Setagaya-ku, Tokyo Kamima Corpus 306 (72) Inventor Toshiya Murayama 2-1, Oiwake, Hiratsuka-shi, Kanagawa Yokohama Rubber Co., Ltd. Hiratsuka Factory

Claims (2)

[Claims] 1. A natural or synthetic rubber or elastic synthetic resin obtained by paving a base layer of polyurethane-based synthetic resin pavement material or composite elastic pavement material in which a urethane layer is laminated on a rubber chip layer on a base such as concrete or asphalt pavement. In a method for applying a surface layer of an all-weather pavement such as an athletic stadium in which a topping material such as an elastic chip obtained by crushing or granulating etc. is sprayed and fixed onto the surface layer of the base layer, polyurethane is applied on the surface layer of the base layer. An intermediate layer made of a synthetic resin is applied, the topping material is sprayed and fixed before the intermediate layer is cured, and then a filler made of a synthetic resin such as polyurethane is placed in the gap between the topping materials. A method for constructing a surface layer of an all-weather pavement for an athletic field, etc. 2. The all-weather pavement for an athletic stadium or the like according to claim 1, wherein the thickness of the filling material is 1/3 or more of the maximum particle diameter of the topping material. How to apply the body surface layer.