KR101590433B1 - Elasticity pavement composition within sawdust and quartz sand - Google Patents

Elasticity pavement composition within sawdust and quartz sand Download PDF

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Publication number
KR101590433B1
KR101590433B1 KR1020140102201A KR20140102201A KR101590433B1 KR 101590433 B1 KR101590433 B1 KR 101590433B1 KR 1020140102201 A KR1020140102201 A KR 1020140102201A KR 20140102201 A KR20140102201 A KR 20140102201A KR 101590433 B1 KR101590433 B1 KR 101590433B1
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South Korea
Prior art keywords
sawdust
weight
elastic
hollow ball
glass fiber
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KR1020140102201A
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Korean (ko)
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안범준
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주식회사 청풍
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/18—Waste materials; Refuse organic
    • C04B18/24—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
    • C04B18/26—Wood, e.g. sawdust, wood shavings
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
    • C04B22/142—Sulfates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Abstract

The present invention relates to an elastic pavement material composition containing sawdust and silica sand, which is intended to improve water permeability as well as to reinforce strength of a pavement layer since sawdust is used in the elastic pavement material composition for a road as an alternative to an existing rubber chip. To this end, the pavement material composition is produced by mixing the materials composed of: 60-70 wt% of sawdust; 10-24 wt% of silica sand; 10-20 wt% of a binder; and 1-5 wt% of a pigment.

Description

톱밥 및 규사가 함유된 탄성 포장제 조성물{ELASTICITY PAVEMENT COMPOSITION WITHIN SAWDUST AND QUARTZ SAND}TECHNICAL FIELD [0001] The present invention relates to an elastic packaging composition containing sawdust and silica sand,

본 발명은 탄성 포장제에 관한 것으로서, 더욱 상세하게는 친환경 재료인 톱밥을 혼합하여 투수성을 향상시킴과 함께 폐기과정에서의 환경오염을 절감시키기 위한 톱밥 및 규사가 함유된 탄성 포장제 조성물에 관한 것이다.
The present invention relates to an elastic packaging agent, and more particularly, to an elastic packaging agent composition containing sawdust and silica sand to improve water permeability by mixing sawdust as an eco-friendly material and to reduce environmental pollution during disposal will be.

종래의 탄성포장층 시공방법은 블록, 시멘트콘크리트, 아스팔트콘크리트 등 기존 포장을 이용하여 노면을 깨끗이 청소하여 이물질을 제거하고, 그 위에 프라이머를 도포하여 프라이머층을 형성한 다음, 재생우레탄, 페타이어, 합성고무 등 다양한 재질의 탄성포장재를 분쇄하여 칩형태로 가공한 탄성포장칩를 포설하여 탄성포장층을 형성하는 것이었다.Conventional methods of constructing the elastic pavement layer are to clean the road surface by using existing pavements such as block, cement concrete, and asphalt concrete to remove foreign matter, to apply a primer thereon to form a primer layer, An elastic packaging material of various materials such as synthetic rubber was ground and an elastic packaging chip processed into a chip form was laid to form an elastic packaging layer.

그 일 예로 특허등록 제784651호에서는 탄성포장 구조체에 관련된 기술이 제안된 바 있다.For example, in patent registration No. 784651, a technique relating to an elastic package structure has been proposed.

상기한 종래 기술에서는 탄성포장 조성물에 포함되는 탄성재료로 우레탄칩 또는 고무칩이 혼합 사용되어지게 되는데, 이러한 우레탄칩 또는 고무칩이 사용되어지게 되면 시간이 지남에 따라 변형이 발생되어 포장면이 고르게 유지되지 못하게 되며, 또한 재사용이 불가능하기 때문에 폐기과정에서 환경오염을 유발하게 되는 문제점이 있었다.
In the above-mentioned conventional technology, a urethane chip or a rubber chip is mixed and used as an elastic material included in the elastic packaging composition. When such a urethane chip or a rubber chip is used, deformation occurs over time, And it is impossible to reuse it. Therefore, there is a problem that environmental pollution is caused in the disposal process.

본 발명은 상기한 종래 기술에서의 문제점을 개선하기 위해 제안된 것으로서, 고무칩을 대체하여 친환경 소재인 톱밥을 사용함으로서 포장면의 투수성을 향상시킴과 함께 환경오염을 방지하고, 포장면의 변형 발생을 방지토록 하는데 목적이 있다.
DISCLOSURE OF THE INVENTION The present invention has been proposed in order to overcome the problems of the prior art described above, and it is an object of the present invention to replace the rubber chips with sawdust which is an eco-friendly material to improve the water permeability of the packaging surface, The purpose is to prevent the occurrence.

상기 목적을 이루기 위한 본 발명의 탄성포장제 조성물은, 톱밥 60~70중량%와, 규사 10~24중량%, 바인더 10~20중량%, 안료 1~5중량%의 비율로 혼합이 이루어짐을 특징으로 한다.
In order to achieve the above object, the elastic packaging composition of the present invention is characterized in that 60 to 70% by weight of sawdust, 10 to 24% by weight of silica, 10 to 20% by weight of binder and 1 to 5% .

이러한 본 발명은, 도로용 탄성포장제 조성물에 기존의 고무칩을 대체하여 톱밥을 사용함으로서 포장층의 변형발생을 방지함과 함께 투수성이 개선되어지는 효과를 나타낸다.The present invention can prevent the deformation of the packaging layer and improve the permeability by using sawdust in place of the existing rubber chip in the elastic packaging composition for roads.

이와 함께 규사가 함유되어짐으로서 포장층의 강도보강이 이루어질 수 있는 이점을 나타낸다.
In addition, silica sand is contained, which shows an advantage that strength of the package layer can be reinforced.

도 1은 본 발명의 실시 예에 따른 탄성포장층 시공단면도.
도 2는 본 발명에서의 규사 단면 확대도.
도 3은 본 발명의 다른 실시 예에 따른 중공볼 단면 확대도.
도 4는 본 발명의 또 다른 실시 예에 따른 중공볼 단면 확대도.1 is a sectional view of an elastic packaging layer according to an embodiment of the present invention.
Fig. 2 is an enlarged cross-sectional view of a diagonal section in the present invention. Fig.
3 is an enlarged cross-sectional view of a hollow ball according to another embodiment of the present invention.
4 is an enlarged cross-sectional view of a hollow ball according to another embodiment of the present invention.

이하, 본 발명의 구체적인 실시 예를 첨부 도면을 참조하여 상세히 살펴보기로 한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

먼저, 본 발명의 일 실시 예에 따른 도로 포장용 탄성포장제의 조성을 살펴보면, 톱밥 70중량%와, 규사 15중량%, 바인더 10중량%, 안료 5중량%의 비율로 혼합이 이루어지도록 한다.First, the composition of the elastic packaging agent for road pavement according to an embodiment of the present invention is such that mixing is performed at a ratio of 70% by weight of sawdust, 15% by weight of silica sand, 10% by weight of binder and 5% by weight of pigment.

본 실시 예에서 톱밥은 탄성력 및 투수성을 증진시키기 위한 재료이고, 규사는 포장층의 내구성을 향상시키기 위한 기능을 수행하게 된다.In this embodiment, sawdust is a material for improving elasticity and water permeability, and silica sand serves to improve the durability of the packaging layer.

한편, 규사(10)는 도 2에서 나타내어지는 바와 같이 외표면에 단열성 증대를 위한 유리섬유층(11)이 코팅된 것을 사용함이 바람직한데, 이러한 유리섬유층(11)은 유리섬유와 나노은 분말이 중량비 기준으로 7:3의 비율로 혼합된 조성물을 코팅시킴으로서 단열효율을 증대시킴과 함께 나노은 분말로 인한 항균 기능을 나타낼 수 있도록 하였다.2, it is preferable to use a glass fiber layer 11 coated on the outer surface of the glass fiber layer 11 for increasing the heat insulating property. The glass fiber layer 11 is formed of glass fiber and nano- To 7: 3 ratio to increase the heat insulation efficiency and to exhibit the antimicrobial function due to the nano silver powder.

또한, 유리섬유층(11)에는 톱밥과의 마찰에 따른 결합력을 증대시키기 위한 분말형태의 테프론입자(12) 및 내구성 증대를 위한 굴패각 미분말(13)이 부착됨으로서 표면에 돌출 구비된 것을 확인할 수 있다.It is also confirmed that the glass fiber layer 11 is provided with the Teflon particles 12 in the form of powder for increasing the bonding force due to the friction with the sawdust and the oyster shell fine powder 13 for enhancing the durability so as to protrude from the surface.

이와 같은 조성을 이루는 본 발명 탄성포장제의 시공과정 및 이에 따른 작용효과를 살펴보기로 한다.Hereinafter, a construction process and effect of the elastic packaging material of the present invention will be described.

먼저, 노면(1)에 쌓인 이물질을 제거하기 위한 청소작업을 실시한 후, 그 위체 프라이머(2)를 도포하고 본 발명의 탄성포장제를 시공하게 된다.First, a cleaning operation is performed to remove foreign matter accumulated on the road surface 1, and then the staple primer 2 is applied to construct the elastic packaging material of the present invention.

즉, 이때에는 탄성포장제를 적절한 두께로 형성시킨 후 다짐롤러 등을 이용하여 평탄면을 형성시킴으로서 탄성포장층의 시공이 이루어지게 된다.That is, at this time, the elastic packaging material is formed to have an appropriate thickness, and then the flat surface is formed by using a compaction roller or the like, whereby the elastic packaging material layer is formed.

이와 같이 시공되어진 탄성포장층은 기존 고무칩을 대체하여 톱밥이 사용되어졌기 때문에 친환경적인 시공이 이루어질 수 있게 되며, 투수성이 증대되어 장마철 도로 표면에 물고임 현상을 방지할 수 있는 이점을 나타낸다.The elastic pavement layer thus constructed can be eco-friendly because sawdust is used instead of the existing rubber chip, and the water permeability is increased, which is advantageous in preventing the phenomenon of biting on the surface during the rainy season.

또한, 내구성이 증대되어 외부 충격에 따른 파손발생을 최소화 함으로서 안정적인 평탄면이 유지되어질 수 있게 된다.In addition, the durability is increased to minimize the occurrence of breakage due to an external impact, so that a stable flat surface can be maintained.

또한, 규사(10)에는 테프론입자(12)와 굴패각 미분말(13)이 함유된 유리섬유층(11)이 코팅 형성되어져 있기 때문에 포장층의 단열성이 증대됨과 함께 톱밥과의 마찰력 증대에 따른 결합력이 향상되어, 포장층의 크랙발생 현상이 방지되어질 수 있게 된다.Since the silica fiber 10 is coated with the glass fiber layer 11 containing the Teflon particles 12 and the oyster shell fine powder 13, the heat insulating property of the packaging layer is enhanced and the bonding force due to the increase in frictional force with the sawdust is improved So that cracking of the packaging layer can be prevented.

한편, 본 발명의 다른 실시 예로서 상기 포장제 조성물에는 톱밥의 미끄럼저항성인 표면마찰지수를 높여주기 위한 폴리우레탄칩 1~5중량%와 황산바륨 1~5중량%이 추가로 혼합되어되며, 추가적으로 탄성력 증대를 위해 합성수지재질로 성형 제작되며 내부에는 공간부(22)를 형성하고 있는 중공볼(20)이 3~5중량%로 혼합되어지게 된다.In another embodiment of the present invention, 1 to 5% by weight of a polyurethane chip and 1 to 5% by weight of barium sulfate are further added to the packaging composition so as to increase the surface friction index, which is a sliding resistance of sawdust, The hollow balls 20 forming the space portion 22 are mixed with 3 to 5% by weight of the synthetic resin material in order to increase the elasticity.

즉, 이때에는 톱밥 65중량%와, 규사 10중량%, 바인더 10중량%, 안료 5중량%, 폴리우레탄칩 3중량%, 황산바륨 3중량%, 중공볼 4중량%의 비율로 혼합되어질 수 있게 된다.That is, in this case, 65 wt% of sawdust, 10 wt% of silica, 10 wt% of binder, 5 wt% of pigment, 3 wt% of polyurethane chips, 3 wt% of barium sulfate and 4 wt% do.

특히, 중공볼(20)에는 투수기능 향상을 위해 도 3에서와 같이 다수의 유통공(21)이 형성되어져 있으며, 내부에는 탄성력 증대를 위해 다수의 탄성스프링(24)이 방사방향으로 구성되고, 상기 탄성스프링 (24)상호간에 간섭발생을 방지하기 위해 중공볼(20) 내부 중앙에는 중심핀(23)이 구성된 것을 확인할 수 있다.3, a plurality of flow holes 21 are formed in the hollow ball 20 to improve the water permeability, and a plurality of elastic springs 24 are radially formed in the hollow ball 20 to increase the elastic force, It is confirmed that the center pin 23 is formed at the center of the hollow ball 20 in order to prevent the occurrence of interference between the elastic springs 24.

이와 같은 포장제 조성을 이루게 되면, 폴리우레탄칩과 황산바륨이 톱밥과 결합되어짐으로 인해 탄성포장층(3)의 표면 미끄럼저항성(BPN;British Pendulum Number)이 개선되어 슬립현상 발생을 방지하고 보다 쾌적한 보행감 및 자전거 주행감을 나타낼 수 있게 된다.When the polyurethane chip and the barium sulfate are combined with the sawdust, the surface smoothness (BPN) of the elastic wrapping layer 3 is improved to prevent the occurrence of the slip phenomenon, Feeling and feeling of bicycle driving feeling.

또한, 중공볼(20)이 함유됨으로서 탄성포장층(3)의 투수성이 개선되어짐과 함께 탄성력이 향상되어질 수 있는 이점을 나타내게 된다.
In addition, since the hollow balls 20 are contained, the elasticity of the elastic packaging layer 3 can be improved and the elastic force can be improved.

도 4는 본 발명의 또 다른 실시 예에 따른 중공볼(20) 구조를 나타낸 것으로서, 중공볼(20)은 탄력성 및 내구성 증대를 위해 내부에 탄력성 재질의 실리콘입자(25)가 충진 구비되며, 상기 실리콘입자(25)와 탄성스프링(24)의 접촉을 방지하기 위해 중공볼(20) 내부에는 길이의 수축이 가능한 자바라 격리막(26)이 구성된 것을 확인할 수 있다.FIG. 4 illustrates a hollow ball 20 according to another embodiment of the present invention. The hollow ball 20 is filled with silicone particles 25 of an elastic material to increase elasticity and durability, It is confirmed that the bellows separator 26 is formed in the hollow ball 20 in order to prevent the contact between the silicon particles 25 and the elastic spring 24. [

이와 같은 구조를 이루게 되면, 보행자 또는 자전거의 하중이 가해졌을 때 중공볼(20)의 탄성 변형을 내부의 실리콘입자(25)가 일정 변형력 범위 내에서 지지함으로서 과도한 하중으로 인한 중공볼(20)의 파손 발생을 방지할 수 있게 된다.When the load of the pedestrian or the bicycle is applied, the elastic deformation of the hollow ball 20 is supported by the inner silicon particles 25 within a predetermined range of the deforming force, It is possible to prevent the occurrence of breakage.

또한, 실리콘입자(25)가 탄성스프링(24) 사이에 끼임으로 인한 탄성스프링(24)의 탄성력 저하를 자바라 격리막(26)이 차단하여 줌으로서 보다 안정적인 중공볼(20)의 탄성작용이 유지되어질 수 있게 된다.
In addition, since the bellows separator 26 blocks the elastic force of the elastic spring 24 due to the silicon particles 25 being sandwiched between the elastic springs 24, the elastic action of the hollow ball 20 can be more stably maintained .

그리고, 상기에서 본 발명의 특정한 실시 예가 설명 및 도시되었지만 본 발명의 도로용 탄성 포장체 조성이 당업자에 의해 다양하게 변형되어 실시될 수 있음은 자명한 일이다.Although specific embodiments of the present invention have been described and illustrated above, it is apparent that the composition of the road elastic package of the present invention can be variously modified by those skilled in the art.

예를 들면, 포장층의 기능성을 향상시키기 위한 다양한 성분이 추가로 함유되어질 수 있게 된다.For example, various components for improving the functionality of the packaging layer can be additionally contained.

따라서, 이와 같은 변형된 실시예들은 본 발명의 기술적 사상이나 범위로부터 개별적으로 이해되어져서는 안되며, 이와 같은 변형된 실시 예들은 본 발명의 첨부된 특허청구범위 내에 포함된다 해야 할 것이다.
Therefore, it should be understood that such modified embodiments should not be understood individually from the technical spirit and scope of the present invention, and such modified embodiments should be included in the appended claims of the present invention.

1 : 노면 2 : 프라이머
3 : 탄성포장층 10 : 규사
11 : 유리섬유층 12 : 테프론 입자
13 : 굴패각 미분말 20 : 중공볼
21 : 유통공 22 : 공간부
23 : 중심핀 24 : 탄성스프링1: Surface 2: Primer
3: elastic packing layer 10: silica sand
11: glass fiber layer 12: Teflon particles
13: Oyster shell fine powder 20: hollow ball
21: Distribution hole 22: Space part
23: center pin 24: elastic spring

Claims (6)

톱밥 60~70중량%와, 규사(10) 10~24중량%, 바인더 10~20중량%, 안료 1~5중량%의 비율로 혼합이 이루어지며;
상기 규사(10)는 외표면에 단열성 증대를 위한 유리섬유층(11)이 코팅 형성되되, 상기 유리섬유층(11)은 유리섬유와 나노은 분말이 중량비 기준 7:3의 비율로 혼합된 것을 특징으로 하는 톱밥 및 규사가 함유된 탄성 포장제 조성물.Mixing is performed at a ratio of 60 to 70% by weight of sawdust, 10 to 24% by weight of silica 10, 10 to 20% by weight of binder and 1 to 5% by weight of pigment;
The glass fiber layer 11 is composed of glass fiber and nano-silver powder mixed at a ratio of 7: 3 by weight. The glass fiber layer 11 is coated on the outer surface of the silica glass 10 to increase the heat insulating property. An elastic packaging composition comprising sawdust and silica sand. 삭제delete 청구항 1에 있어서,
상기 유리섬유층(11)에는 톱밥과의 결합력을 증대시키기 위한 분말형태의 테프론입자(12) 및 내구성 증대를 위한 굴패각 미분말(13)이 함유되어 표면에 돌출 구비됨을 특징으로 하는 톱밥 및 규사가 함유된 탄성 포장제 조성물.The method according to claim 1,
Characterized in that the glass fiber layer (11) contains Teflon particles (12) in powder form for enhancing bonding force with sawdust and oyster shell fine powder (13) for enhancing durability and is projected on the surface. Elastic packaging composition. 청구항 1에 있어서,
상기 조성물에는 톱밥의 미끄럼저항성인 표면마찰지수를 높여주기 위한 폴리우레탄칩 1~5중량%와 황산바륨 1~5중량%이 추가로 혼합되어짐을 특징으로 하는 톱밥 및 규사가 함유된 탄성 포장제 조성물.The method according to claim 1,
Characterized in that the composition further comprises 1 to 5% by weight of a polyurethane chip and 1 to 5% by weight of barium sulphate to increase the surface friction index, which is a sliding resistance of sawdust, and an elastic packaging composition containing sawdust and silica . 청구항 1 또는 청구항 4에 있어서,
상기 조성물에는 탄성력 및 투수성 증대를 위해 합성수지재질로 성형 제작되며 내부에는 공간부(22)를 형성하고 있는 중공볼(20)이 혼합되어지되, 상기 중공볼(20)에는 다수의 유통공(21)이 형성되어져 있으며, 내부에는 다수의 탄성스프링(24)이 방사방향으로 구성되고, 상기 탄성스프링(24) 상호간에 간섭발생을 방지하기 위해 중공볼(20) 내부 중앙에는 중심핀(23)이 구성된 것을 특징으로 하는 톱밥 및 슈사가 함유된 탄성 포장제 조성물.The method according to claim 1 or 4,
The hollow ball 20 is formed by molding a synthetic resin material to increase the elasticity and permeability of the composition, and a hollow ball 20 having a space portion 22 therein is mixed. The hollow ball 20 is provided with a plurality of flow holes 21 A plurality of elastic springs 24 are radially formed in the inside of the hollow ball 20. In order to prevent interference between the elastic springs 24, Wherein the elastic packaging composition comprises sawdust and shoe. 삭제delete
KR1020140102201A 2014-08-08 2014-08-08 Elasticity pavement composition within sawdust and quartz sand KR101590433B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100744998B1 (en) * 2006-05-02 2007-08-02 에코텍 주식회사 Elastic pavement
KR100947888B1 (en) * 2009-08-04 2010-03-17 예덕건설 주식회사 Paving composition and methods for their use
KR20110010934A (en) * 2009-07-27 2011-02-08 (주)아해 Elastic mat having natural stiffeners and non-woven fabrics, manufacturing method thereof and method for constructing the same
KR101163051B1 (en) * 2011-10-14 2012-07-05 (주)영일에이치앤티 The fillers connected with multi elastic chips for artificial turf and structure of artificial turf using the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100744998B1 (en) * 2006-05-02 2007-08-02 에코텍 주식회사 Elastic pavement
KR20110010934A (en) * 2009-07-27 2011-02-08 (주)아해 Elastic mat having natural stiffeners and non-woven fabrics, manufacturing method thereof and method for constructing the same
KR100947888B1 (en) * 2009-08-04 2010-03-17 예덕건설 주식회사 Paving composition and methods for their use
KR101163051B1 (en) * 2011-10-14 2012-07-05 (주)영일에이치앤티 The fillers connected with multi elastic chips for artificial turf and structure of artificial turf using the same

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