KR100331479B1 - The laminating substance of base course for permeable pavement using waste synthetic fibers and it's manufacturing method - Google Patents
The laminating substance of base course for permeable pavement using waste synthetic fibers and it's manufacturing method Download PDFInfo
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- KR100331479B1 KR100331479B1 KR1020000001906A KR20000001906A KR100331479B1 KR 100331479 B1 KR100331479 B1 KR 100331479B1 KR 1020000001906 A KR1020000001906 A KR 1020000001906A KR 20000001906 A KR20000001906 A KR 20000001906A KR 100331479 B1 KR100331479 B1 KR 100331479B1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B11/00—Layered products comprising a layer of bituminous or tarry substances
- B32B11/10—Layered products comprising a layer of bituminous or tarry substances next to a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0036—Heat treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/002—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising natural stone or artificial stone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
- B32B2037/243—Coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/164—Drying
- B32B2038/166—Removing moisture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/02—Synthetic macromolecular particles
- B32B2264/0207—Particles made of materials belonging to B32B25/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/70—Scrap or recycled material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
Abstract
본 발명은 폐합성섬유를 이용하여 투수성 도로 포장용 기층재로 적합하게 사용할 수 있도록 한, 폐합성 섬유를 이용한 투수성 도로 포장용 적층 기층재 및 그 제조방법에 관한 것이다.The present invention relates to a permeable road pavement laminated base material using waste synthetic fibers and a method for manufacturing the same, which can be suitably used as a permeable road pavement base material using waste synthetic fibers.
종래 투수성 도로의 포장은 흙으로된 노반을 고르게 다진 후, 그 상층에 자갈을 깔아서 다진 보조기층과, 그 상부에 투수성 포장재를 깔아줌으로서 투수성 도로의 포장이 이루어졌다. 이같은 구조로 된 투수성 도로는 노반층에서 올라온 수분으로 인하여 보조기층으로부터 박리가 일어나 도로의 품질이 시간이 지날수록 급격하게 저하되는 문제점을 안고 있다. 또한, 투수도가 우수한 투수성 포장재를 이용하여 투수성 도로를 포장할 경우에는 물이 보조기층과 노반층에 스며들면서 지반침하가 일어나는 문제점이 발생한다. 또한 종래의 투수성 도로포장재는 결합재(바인더)의 가격 때문에 시공비가 매우 비싼 결정적인 단점이 있었다.Conventionally, the pavement of the permeable road was evenly chopped the roadbed made of soil, and then the pavement of the permeable road was made by spreading the subsidiary base layer and the permeable pavement on top of the crushed gravel. Permeable roads having such a structure have a problem in that the quality of the road is sharply deteriorated over time due to peeling from the auxiliary base due to moisture from the roadbed. In addition, when paving a permeable road using a permeable pavement material having excellent water permeability, there is a problem that ground subsidence occurs as water penetrates the subbase layer and the subgrade layer. In addition, the conventional water-permeable road pavement has a decisive disadvantage in that the construction cost is very expensive due to the price of the binder (binder).
본 발명은 이같은 종래의 투수성 도로포장재가 안고 있는 박리와 지반침하를 방지할 수 있도록 폐합성섬유를 적층한 적층기반재를 투수성 구조로 만들어 보조기층과 투수성 포장재로된 기층 사이에 적층기반재를 설치함으로 적층기반재와 기층이 단단하게 결합되고, 노반층으로 부터 올라오는 수분이 적층기반재로 인해 효과적으로 차단될 수 있도록 함으로서 우수한 투수성 도로포장을 실현할 수 있도록 함과 동시에, 적층기반재를 일정 두께로 설치하기 때문에 투수성 포장재의 두께를 상당히 줄이고도 충분한 압축강도와 경제성 있는 투수성 도로를 시공할 수 있도록 한것이다.The present invention is laminated base material between the auxiliary base layer and the base layer of the permeable paving material by making the laminated base material laminated the waste synthetic fibers to prevent the peeling and ground subsidence of the conventional water-permeable road pavement By installing the ash, the laminated base material and the base layer are firmly combined, and the moisture from the subgrade layer can be effectively blocked by the laminated base material, so that excellent permeable road paving can be realized and the laminated base material Since it is installed at a certain thickness, it is possible to construct a permeable road with sufficient compressive strength and economical efficiency even though the thickness of the permeable pavement is considerably reduced.
Description
본 발명은 폐합성섬유를 이용하여 투수성 도로의 기층재로 사용할 수 있도록한 폐합성섬유를 적층한 투수성 도로 포장용 적층 기층재 및 그 제조방법에 관한 것이다.The present invention relates to a water-permeable road pavement laminated base material and a method for manufacturing the same, which laminated waste synthetic fiber to be used as a base material for permeable road using waste synthetic fiber.
종래의 일반적인 투수성 도로 포장재는 투수성 아스팔트 포장재와 투수성 시멘트 포장재가 일반적으로 사용되고 있다.Conventional permeable road pavement generally includes permeable asphalt pavement and permeable cement pavement.
종래의 투수성 도로포장재는 투수성 아스팔트의 경우 골재와 골재간의 결합을 타르를 이용하여 결합하면서 골재와 골재 사이에서 생기는 공극을 형성하여 투수성을 부여하거나, 투수성 시멘트 포장재는 결합제를 시멘트를 사용하면서 공극을 형성하여 투수성을 부여하였다.Conventional permeable road pavement provides permeability by forming a gap between aggregate and aggregate in the case of permeable asphalt by combining the bond between aggregate and aggregate using tar, or the permeable cement pavement uses binder as cement While forming voids to impart water permeability.
종래의 일반적인 투수성 도로포장재를 적용한 도로의 단면 구조도를 나타내는 도1을 통해 종래 기술을 보다 상세하게 설명하면 다음과 같다.The prior art will be described in more detail with reference to FIG. 1, which shows a cross-sectional structure diagram of a road to which a conventional general permeable road paver is applied.
종래의 도로구조는 흙으로 쌓은 노상(1)위에 차단층(2)이 형성되고, 그 상부에 하층(3)과 상층(4)으로 된 보조기층(5)이 형성되며, 그 상부에 기층(6)과 표층(7)이 형성되어 있다. 기층(6)과 표층(7) 사이에는 중간층(8)이 형성되기도 하며, 표층(7)의 표면을 내마찰 물질로 처리하여 마찰층(9)을 형성하기도 한다.In the conventional road structure, a barrier layer 2 is formed on the roadbed 1 stacked with soil, and an auxiliary base layer 5 formed of a lower layer 3 and an upper layer 4 is formed thereon, and a substrate layer is formed thereon. 6) and the surface layer 7 are formed. The intermediate layer 8 may be formed between the base layer 6 and the surface layer 7, and the friction layer 9 may be formed by treating the surface of the surface layer 7 with an antifriction material.
이같은 종래의 도로구조에서 보조기층(5)은 대부분 자갈로 구성되며, 기층(6)은 표층(7)에 가해지는 하중을 보조기층(5)에 균일하게 전달할 수 있도록 가열아스팔트 혼합물로 구성되어 있다. 표층(7)은 고밀도 아스팔트 혼합물을 이용하여 포장하며, 적설냉한 지역의 경우 타이어 체인에 의한 마찰방지를 위하여 표층(7)위를 내마찰 혼합물로 시공하기도 한다.In this conventional road structure, the auxiliary base layer 5 is mostly composed of gravel, and the base layer 6 is composed of a heated asphalt mixture so as to uniformly transmit the load applied to the surface layer 7 to the auxiliary base layer 5. . The surface layer 7 is pavement using a high density asphalt mixture, and in the case of a snow-cold region, the surface layer 7 may be constructed of a friction-resistant mixture on the surface layer 7 to prevent friction by tire chains.
종래의 투수성 도로포장재는 기층(6)과 표층(7)을 투수성 아스팔트 포장재로 시공하거나, 투수성 콘크리트 포장재의 경우 보조기층(5)의 두께를 달리하여 시공하였다.Conventional water-permeable road pavement is the base layer (6) and the surface layer (7) is constructed of a permeable asphalt pavement, or in the case of a permeable concrete pavement was constructed by varying the thickness of the auxiliary base layer (5).
이같은 종래의 투수성 도로포장재중 투수성 아스팔트는 온도가 높고 태양광선을 강하게 받는 여름에는 외부에서 하중을 받으면 타르가 녹아서 공극을 막게되어 투수성이 현저하게 저하되는 단점이 있었고, 투수성 시멘트 포장재는 공극을 효과적으로 형성하기 힘들기 때문에 물이 빠지는 속도를 나타내는 투수도가 매우 낮은 단점이 있었다. 또한, 기층(6)과 표층(7)을 상당한 두께로 시공하여야 되기 때문에, 투수성을 부여하면서 기준도로에 적합한 도로를 시공하는데는 시공비용의 과다로 경제성을 확보하기가 어려웠다.Among such conventional permeable road pavement, permeable asphalt has a disadvantage in that the tar melts and blocks pores in the summer when the temperature is high and the sunlight is strongly received, and the permeability is significantly reduced. Since the voids are difficult to form effectively, there is a disadvantage that the water permeability is very low. In addition, since the base layer 6 and the surface layer 7 have to be constructed with a considerable thickness, it is difficult to secure economic feasibility due to excessive construction costs in constructing a road suitable for the reference road while providing permeability.
또한, 종래의 두가지 투수성 포장재 모두가 투수속도가 다공성 콘크리트의 기준 요구 값인 6.6×10-2cm/sec를 겨우 상회하는 수준에 머물러 보다 빠른 투수속도가 요구되었다.In addition, both conventional permeable packaging materials required a faster permeation rate because the permeation rate remained only above 6.6 × 10 −2 cm / sec, which is the standard requirement of porous concrete.
한편, 투수성 도로포장재 개발을 위한 새로운 시도로 폐고무 분말을 골재에 부착시켜 투수공을 형성하여 투수성을 부여하는 기술이 소개되고 있으나, 충분한 압축강도를 달성하기 위하여 고가의 바인더를 사용해야 하므로, 경제성 있는 바인더 개발과, 투수성 도로포장재중 일부를 다른 방법으로 포장하여 경제성있는 투수성 도로포장재를 실현해야하는 과제가 있었다. 또한, 이같은 투수성 도로포장재는수분으로 인한 박리현상이 발생하여 빈번하게 도로균열을 초래하는 단점이 있었다.On the other hand, as a new attempt to develop a permeable road pavement material has been introduced technology to give the permeability by forming a permeable hole by attaching the waste rubber powder to the aggregate, because an expensive binder must be used to achieve sufficient compressive strength, There has been a challenge to develop an economical binder and to realize economically permeable road pavement by packing some of the permeable road pavement in different ways. In addition, such a water-permeable road pavement has a disadvantage in that the peeling phenomenon occurs due to moisture frequently causing road cracking.
본 발명은 이상과 같은 종래기술의 문제점을 개선하기 위하여 투수성 도로포장재의 일부층에 폐합성섬유를 주성분으로 한 적층기층재를 시공하여 투수성을 부여하면서 투수성 도로포장재의 두께를 줄여 경제성있는 투수성 도로포장재를 실현하고, 투수성 도로포장재의 하부층에서 올라오는 수분침투로부터 투수성 도로포장재가 박리현상을 일으키는 것을 예방하기 위한 새로운 도로포장재와 그 제조방법을 제공하는데 목적이 있다.The present invention is economical by reducing the thickness of the water-permeable road pavement material while imparting water permeability by constructing a laminated base material mainly composed of waste synthetic fibers in a part of the water-permeable road pavement material to improve the problems of the prior art as described above. It is an object of the present invention to provide a new road paving material and a method of manufacturing the same to realize the water-permeable road paving material, and to prevent the water-permeable road paving material from peeling from water penetration from the lower layer of the water-permeable road paving material.
본 발명은 폐합성섬유를 이용한 적층기층재를 만드는데 필요한 최적의 제조방법을 모색하고, 종래의 투수성 도로포장재의 일부층을 폐합성섬유 적층기층재로 대체하여 투수성 도로포장재와 함께 시공할 수 있는 바람직한 적층기층재 구조를 모색하는 것이 주요 과제이다.The present invention seeks an optimal manufacturing method for making a laminated base material using waste synthetic fibers, and replaces a part of the conventional permeable road paving material with the waste synthetic fiber laminate base material and can be constructed together with a water permeable road paving material. The main challenge is to find a preferred laminated base material structure.
도1은 일반적인 투수성 도로포장재를 적용한 도로의 단면 구조도1 is a cross-sectional structural view of a road to which a general permeable road paver is applied
도2는 본 발명의 폐합성섬유를 이용한 투수성 도로포장용 적층기반재를 적용한 도로의 단면 구조도Figure 2 is a cross-sectional structural diagram of the road to which the laminated base material for permeable road pavement using waste synthetic fibers of the present invention
도3은 본 발명의 폐합성섬유를 이용한 투수성 도로포장용 적층기반재의 제조공정 설명도Figure 3 is an explanatory view of the manufacturing process of the laminated base material for water-permeable road pavement using the waste synthetic fibers of the present invention
도4는 본 발명의 적층기층재의 구조도로Figure 4 is a structural diagram of the laminated substrate material of the present invention
도4-1은 적층기층재의 구조를 나타내는 사시도4-1 is a perspective view showing the structure of the laminated base material
도4-2는 적층기층재의 투수공 확대도Figure 4-2 is an enlarged view of the permeation hole of the laminated base material
*** 도면의 주요 부분에 대한 부호 설명 ****** Explanation of symbols on main parts of drawing ***
5 : 보조기층 16 : 기층5: subbase 16: base
6 : 기층 17 : 표층6: substrate 17: surface layer
7 : 표층 22 : 투수공7: surface layer 22: pitcher
9 : 마찰층 24 : 고무분말9: friction layer 24: rubber powder
본 발명의 폐합성섬유를 이용한 투수성 도로포장용 적층기층재 및 그 제조방법의 상세한 구성 및 작용을 첨부한 도면에 의하여 설명하면 다음과 같다.Referring to the accompanying drawings, the detailed configuration and operation of the water-permeable road pavement laminate base material using the waste synthetic fibers of the present invention and a manufacturing method thereof are as follows.
[도2] 는 본 발명의 폐합성섬유를 이용한 투수성 도로 포장용 적층기층재를 적용한 투수성 도로의 단면구조도로, 흙으로 된 노상(11) 위에 자갈층으로 이루어진 보조기층(15)과 그 상부층을 폐합성섬유를 이용한 적층기층재로 구성된 기층(16)으로 형성하고, 그 상부에 투수성 고무 아스팔트로 구성된 표층(17)을 구성한다.FIG. 2 is a cross-sectional structural view of a permeable road to which a permeable road pavement laminated base material using waste synthetic fibers of the present invention is applied, and an auxiliary base 15 and a top layer formed of a gravel layer on a dirt road 11 A base layer 16 made of a laminated base material using waste synthetic fibers is formed, and a surface layer 17 made of permeable rubber asphalt is formed thereon.
폐합성 섬유를 이용한 적층기층재의 구성과 제조방법을 [도3] 의 본 발명의 폐합성섬유를 이용한 투수성 도로 포장용 적층기층재의 제조공정도에 따라서 상세하게 설명하면 다음과 같다.The construction and manufacturing method of the laminated base material using the waste synthetic fibers will be described in detail according to the manufacturing process diagram of the laminated base material for water-permeable road pavement using the waste synthetic fiber of the present invention as shown in FIG.
먼저, 폐합성섬유의 조각인 스크랩(scrap)을 일정한 크기로 절단한 후 두께와 밀도가 일정하게 타면하여 휄트(felt)로 만든다. 휄트를 적층기반재의 두께를 고려하여 적층으로 만든 후, 휄트에 멜라민 수지나 요소 수지, 요소 수지 탈크 등 수용성 열경화성 수지를 도포한 다음 가열, 성형한 후 가열된 상태로 이송하여 투수공을 형성하고, 다음 공정인 냉각공정으로 이동하여 급속냉각이 이루어지도록 한다. 이같은 공정을 거친 후 투수공이 형성된 적층기층재가 만들어지면, 투수공에는 고무분말을 부착하여 노상에서 올라오는 수분흡수를 차단하면서, 비가올 경우에는 투수공을 통해 물이 충분하게 빠지도록 구성한다. 한편, 적층기층재는 [도4]와 같이 경우에 따라서는 결합력을 증가시키기 위하여 요철부를 형성한다. 요철부는 돌부(23)를 형성할 수 도 있고, 적층기층재 자체를 굴곡처리 할 수 도 있다. 적층기층재에 형성된 투수공(22)은 물이 빠지는 투수속도를 고려하여 크기를 정하며, 투수공(23)에는 고무분말(24)을 부착시킨다.First, a scrap, a piece of waste synthetic fiber, is cut to a certain size, and then the thickness and density are burnt to make felt. After the bolt is laminated in consideration of the thickness of the laminated base material, water-soluble thermosetting resin such as melamine resin, urea resin and urea resin talc is applied to the felt, and then heated and molded, and then transferred to the heated state to form a perforation hole. The next step is to move to the cooling process to achieve rapid cooling. After such a process, if a laminated base material having a permeable hole is formed, the water permeable hole is attached to block the absorption of water from the road by attaching a rubber powder, and in case of rain, the water is sufficiently discharged through the permeable hole. On the other hand, the laminated base material, as shown in Figure 4 in some cases to form an uneven portion in order to increase the bonding force. The uneven portion may form the protrusion 23 or may bend the laminated base material itself. The permeable hole 22 formed in the laminate base material is sized in consideration of the water permeation rate of water drainage, and the rubber powder 24 is attached to the permeable hole 23.
본 발명의 폐합성 섬유를 이용한 투수성 도로 포장용 적층기층재 및 그 제조방법은 기존의 투수성 도로포장재의 두께를 줄여 경제성있는 투수성 도로 포장재를 실현하고, 경우에 따라서 종래의 투수성 도로포장재와 함께 사용하지 않고도 단독으로 사이클 도로나 보도 등의 투수성 도로 포장에 적용할 수 있다.The water-permeable road pavement laminate base material using the waste synthetic fibers of the present invention and a method for manufacturing the same are realized by reducing the thickness of the existing water-permeable road pavement material and economical water-permeable road pavement material, It can be applied to permeable road pavement such as cycle road or sidewalk without being used together.
또한, 본 발명의 적층기층재를 적용할 경우 노상에서 올라오는 수분으로 인해 기존의 투수성 도로 포장재에서 발생할 수 있는 박리현상을 효과적으로 해소할 수 있는 큰 잇점이 있다.In addition, when applying the laminated substrate of the present invention there is a great advantage that can effectively solve the peeling phenomenon that can occur in the existing permeable road pavement due to the moisture coming from the road.
Claims (3)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06313301A (en) * | 1993-04-30 | 1994-11-08 | Yokohama Rubber Co Ltd:The | Elastic pavement block and manufacture thereof |
| KR950008413A (en) * | 1993-09-03 | 1995-04-17 | 김재완 | Waste Plastic Concrete Composite Material |
| KR19980063390A (en) * | 1997-07-24 | 1998-10-07 | 황택성 | Manufacturing method of composite material using waste FRP |
| KR19990009076U (en) * | 1997-08-12 | 1999-03-05 | 손정호 | Sidewalk block made of waste material recycled mixture |
| KR100247735B1 (en) * | 1997-09-11 | 2000-03-15 | 하진규 | Construction aggregate made of a waste-synthetic resin and manufacturing method of the same |
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2000
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06313301A (en) * | 1993-04-30 | 1994-11-08 | Yokohama Rubber Co Ltd:The | Elastic pavement block and manufacture thereof |
| KR950008413A (en) * | 1993-09-03 | 1995-04-17 | 김재완 | Waste Plastic Concrete Composite Material |
| KR19980063390A (en) * | 1997-07-24 | 1998-10-07 | 황택성 | Manufacturing method of composite material using waste FRP |
| KR19990009076U (en) * | 1997-08-12 | 1999-03-05 | 손정호 | Sidewalk block made of waste material recycled mixture |
| KR100247735B1 (en) * | 1997-09-11 | 2000-03-15 | 하진규 | Construction aggregate made of a waste-synthetic resin and manufacturing method of the same |
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