JP2764051B2 - Paving method of elastic road surface - Google Patents
Paving method of elastic road surfaceInfo
- Publication number
- JP2764051B2 JP2764051B2 JP63028962A JP2896288A JP2764051B2 JP 2764051 B2 JP2764051 B2 JP 2764051B2 JP 63028962 A JP63028962 A JP 63028962A JP 2896288 A JP2896288 A JP 2896288A JP 2764051 B2 JP2764051 B2 JP 2764051B2
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- layer
- rubber
- road surface
- granular rubber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Road Paving Structures (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は弾性路面の舗装方法に関し、詳しくは各種の
運動場の歩道、特に陸上競技場やテニスコート、バスケ
ットボールコート等に適した高弾性で耐久性にすぐれ、
かつ経済的な路面の舗装方法に関するものである。Description: FIELD OF THE INVENTION The present invention relates to a method for paving an elastic road surface, and more particularly, to a highly elastic and durable pavement for various athletic fields, in particular, an athletic field, a tennis court, a basketball court and the like. Excellent in nature,
The present invention relates to an economical road pavement method.
（従来の技術） 従来、コンクリート、アスファルトコンクリート等の
基盤の上に各種の合成樹脂で舗装した路面が特に陸上競
技場、テニスコート、ゴルフ場、体育館床等の運動施設
に使用されている。(Prior Art) Conventionally, road surfaces paved with various synthetic resins on a base such as concrete or asphalt concrete have been used particularly for athletic facilities such as athletic stadiums, tennis courts, golf courses, and gymnasium floors.
これらの合成樹脂による舗装路面は一般に弾性を有
し、運動性能にすぐれるが、高価なのが欠点である。最
近タイヤ屑などの粒状ゴムを利用した省資源タイプの廉
価な弾性舗装路面が実用化されており、注目を集めてい
る。Pavement roads made of these synthetic resins generally have elasticity and excellent exercise performance, but are disadvantageous in that they are expensive. In recent years, resource-saving and inexpensive elastic pavement roads using granular rubber such as tire scrap have been put to practical use and have attracted attention.
（発明が解決しようとする課題） このような省資源タイプの廉価な弾性舗装路面の舗装
方法として、特許第1153214号公報が知られている。(Problem to be Solved by the Invention) Japanese Patent No. 1153214 is known as a method of paving a resilient pavement road surface of such a resource-saving type at low cost.
この方法は粒状ゴム層に小径の硅砂又は小径のゴムチ
ップを散布し、目止めを施し該目止めを施した下地層に
液体樹脂と硅砂とシンナーとの混合物で捨塗層を形成
し、その後、捨塗層上に樹脂材料からなる表面層を形成
することから成る床版舗装方法である。In this method, a small-diameter silica sand or a small-diameter rubber chip is sprayed on the granular rubber layer, a seal is formed, and a liquid resin, silica sand, and a mixture of thinner are used to form a discarded layer on the sealed base layer. This is a floor slab paving method comprising forming a surface layer made of a resin material on a discarded layer.
しかしながら、この方法は工程が長く施工が複雑であ
る。また得られた舗装路面は満足な弾性の物ではなく、
かつ耐久性が劣るなど、問題点が多く、実用上充分満足
できるものではなかった。However, this method has long steps and complicated construction. Also, the pavement surface obtained is not of satisfactory elasticity,
In addition, there were many problems such as poor durability and the like, which was not practically satisfactory.
（課題を解決するための手段） 本発明者等は高弾性で耐久性に富み、かつ施工の容易
な舗装路面を経済的に得るための方法について種々検討
した結果、タイヤ屑等の粒状ゴムを合成樹脂バインダー
で結合して空隙を内部に形成した弾性体層の表面にフォ
ーム状合成樹脂を施工して、該弾性体層の目止めを行っ
たのち、合成樹脂表層を施工することにより粒状ゴム自
体の弾性が高度に生かされ、その結果として従来の合成
樹脂単独の舗装路面と同等以上の弾性を有し、しかも高
価な合成樹脂表層材を無駄なく用いて、経済的な弾性舗
装路面が得られることを発見して、本発明を完成するに
至った。(Means for Solving the Problems) The present inventors have conducted various studies on a method for economically obtaining a pavement surface having high elasticity, high durability, and easy construction, and as a result, it has been found that granular rubber such as tire dust is reduced. A foam-like synthetic resin is applied to the surface of the elastic layer in which voids are formed inside by bonding with a synthetic resin binder, and after the elastic layer is filled, a granular rubber is formed by applying a synthetic resin surface layer. The elasticity of its own is utilized to a high degree, and as a result, it has elasticity equal to or higher than that of the conventional synthetic resin-only pavement surface, and economical elastic pavement surface can be obtained by using expensive synthetic resin surface layer without waste. And found that the present invention was completed.
即ち、本発明は、基盤の上に粒状ゴムと合成樹脂バイ
ンダーとからなる空隙を内部に形成した粒状ゴム層を施
工し、次いでフォーム状合成樹脂にて中塗りを行い、次
いで合成樹脂表層を施工することを特徴とする弾性路面
の舗装方法に関するものである。That is, the present invention applies a granular rubber layer in which a void made of granular rubber and a synthetic resin binder is formed on a base, then performs intermediate coating with a foam synthetic resin, and then applies a synthetic resin surface layer. The present invention relates to a method for paving an elastic road surface.
一般にタイヤ屑等の粒状ゴムは、それ自体高弾性を有
するので、舗装材としてその弾性を生かす為にはゴム粒
子間に空隙を持たせて多孔質とすることにより、より高
弾性が得られる。しかしながら、粒状ゴム層の上に合成
樹脂層を施工する際、表層の合成樹脂材料が粒状ゴム層
の空隙部を通過して下に洩れてしまう欠点がある。本発
明者等はこの欠点を解決する為に粒状ゴム層の表面にフ
ォーム状合成樹脂を施工して、その上に合成樹脂表層を
施工することにより表層材が下へ洩れるのを防止して空
隙を確保し経済的に高弾性の舗装路面を得ることに成功
したものである。Generally, granular rubber such as tire waste itself has high elasticity. Therefore, in order to make use of the elasticity as a pavement material, a higher elasticity can be obtained by providing a void between rubber particles to make the rubber porous. However, when the synthetic resin layer is applied on the granular rubber layer, there is a drawback that the synthetic resin material of the surface layer leaks downward through the void portion of the granular rubber layer. In order to solve this drawback, the present inventors applied foam synthetic resin on the surface of the granular rubber layer, and applied a synthetic resin surface layer thereon to prevent the surface material from leaking downward and create a void. And succeeded in economically obtaining a highly elastic pavement surface.
以下、図面に基いて本発明の構成を説明する。 Hereinafter, the configuration of the present invention will be described with reference to the drawings.
まず、基盤１の上に必要に応じてプライマー等を塗布
し、粒状ゴムに合成樹脂バインダーを混和した材料をレ
ーキローラー、コテ、フィニッシャー等を用いて敷きな
らす（粒状ゴム層２）。次いでフォーム状合成樹脂を薄
く流す（フォーム状合成樹脂層３）。最後に公知の方法
に従って合成樹脂層４を施工する。First, a primer or the like is applied on the base 1 as necessary, and a material obtained by mixing a synthetic resin binder with granular rubber is laid using a rake roller, a trowel, a finisher, or the like (a granular rubber layer 2). Next, a thin foam synthetic resin is flowed (foam synthetic resin layer 3). Finally, the synthetic resin layer 4 is applied according to a known method.
基盤としてはコンクリート、モルタル、アスファルト
コンクリート等公知の基盤が用いられる。粒状ゴムとし
ては最小粒径1mm以上、好ましくは粒径２ないし5mmのも
のが適当である。As the base, a known base such as concrete, mortar, and asphalt concrete is used. As the granular rubber, those having a minimum particle size of 1 mm or more, preferably 2 to 5 mm are suitable.
粒状ゴムとしては天然ゴム、スチレン、ブタジエンゴ
ム、アクリロニトリル、ブタジエンゴム、ポリブタジエ
ンゴム、ポリイソプレンゴム、ポリクロロプレンゴム、
ブチルゴム、エチレン・プロピレンゴム、ポリウレタン
ゴム等およびそれらの加硫ゴムのチップがあるが、特に
廃タイヤを粉砕して得られるタイヤ屑が廃品利用と経済
性の点から最も好適に使用される。As the granular rubber, natural rubber, styrene, butadiene rubber, acrylonitrile, butadiene rubber, polybutadiene rubber, polyisoprene rubber, polychloroprene rubber,
There are butyl rubber, ethylene propylene rubber, polyurethane rubber, and vulcanized rubber chips. Tire waste obtained by grinding waste tires is most preferably used from the viewpoint of waste product utilization and economy.
タイヤ屑としては、破砕片状のものが一般的である
が、他にも種々の形状のものがあり、またタイヤ中の繊
維屑を含有したままのものもあるが、いずれも使用でき
る。Tire waste is generally in the form of crushed pieces, but there are also various other shapes, and there is also one that still contains fiber waste in the tire, and any of them can be used.
バインダーおよび表層に用いられる合成樹脂としては
ポリウレタン、アクリル酸エステル共重合体、スチレン
・ブタジエンゴム、エチレン・酢酸ビニル共重合体、ポ
リアミド、ポリエステル、ポリエポキサイド等公知の合
成樹脂材料が単独であるいは２種以上組み合わせて使用
される。これらの合成樹脂材料には１液型と２液型、溶
剤型とエマルジョン型等の各種のタイプがある。バイン
ダーおよび表層に用いられる合成樹脂の種類は同一であ
っても異なっていてもよい。弾性の点からポリウレタン
は最も好適に用いられる材料であるが、通常の１〜２液
型システムのほか、溶液型ウレタンシステム、ウレタン
エマルジョンシステム等が用いられる。Known synthetic resin materials such as polyurethane, acrylate copolymer, styrene / butadiene rubber, ethylene / vinyl acetate copolymer, polyamide, polyester, and polyepoxide may be used alone or in combination with the binder and the surface resin. Used in combination. These synthetic resin materials include various types such as a one-pack type and a two-pack type, a solvent type and an emulsion type. The kind of the synthetic resin used for the binder and the surface layer may be the same or different. Polyurethane is the most preferably used material from the viewpoint of elasticity, but a solution type urethane system, a urethane emulsion system, etc. are used in addition to a usual one-two-part system.
既に記載した通り、粒状ゴム層の弾性構造は、空隙を
持たせて多孔質とすることにより相乗的に発揮されるも
のである。この点から粒状ゴムの粒径は1mm以上、好ま
しくは2mm以上であることが必要である。As already described, the elastic structure of the granular rubber layer is synergistically exerted by providing voids and making them porous. From this point, the particle size of the granular rubber needs to be 1 mm or more, preferably 2 mm or more.
一方、フォーム状合成樹脂は、２液型ポリウレタンの
メカニカルフロス（機械的発泡）で、発泡倍率は1.2か
ら２倍が好ましく、特に1.5倍程度が最も好ましい。On the other hand, the foam synthetic resin is a two-component polyurethane mechanical floss (mechanical foaming), and the expansion ratio is preferably 1.2 to 2 times, and most preferably about 1.5 times.
粒状ゴムと合成樹脂バインダーとの混合比は、空隙部
を持たせる為にバインダーの比率を小さくする方が良
く、通常、粒状ゴム対バインダーとして重量比で２対１
ないし６対１程度が好ましい。As for the mixing ratio of the granular rubber and the synthetic resin binder, it is better to reduce the ratio of the binder in order to have voids, and usually, the weight ratio of the granular rubber to the binder is 2: 1 by weight.
About 6 to 1 is preferable.
本発明における粒状ゴム層２、フォーム状合成樹脂層
３、および合成樹脂層４はそれぞれ目的に応じた厚みと
することができ、その表面は用途に応じた仕上げとする
ことができる。The granular rubber layer 2, foam synthetic resin layer 3, and synthetic resin layer 4 in the present invention can each have a thickness according to the purpose, and the surface thereof can be finished according to the application.
（作用） 本発明の方法で得られる弾性舗装路面は、従来の合成
樹脂単体の舗装路面と同等以上の弾性と運動性能を有
し、しかも経済的なので本発明の効果は極めて顕著であ
る。(Action) The elastic pavement obtained by the method of the present invention has elasticity and kinetic performance equal to or higher than those of the conventional synthetic resin alone, and is economical, so that the effect of the present invention is extremely remarkable.
以下、本発明の方法を実施例により説明する。実施例
中の部は重量部を表す。Hereinafter, the method of the present invention will be described with reference to examples. Parts in the examples represent parts by weight.
（実施例） 実施例１ ポリウレタンの弾性舗装用原液システムのＡ成分とし
て、平均分子量2000のポリオキシプロピレングリコール
と過剰のトリレンジイソシアナート（2,4−体/2,6−体
＝80/20）とを常法により反応させて、末端イソシアナ
ート基含有量5.2％のプレポリマーを製造した。(Examples) Example 1 As the A component of the polyurethane elastic pavement stock solution system, polyoxypropylene glycol having an average molecular weight of 2,000 and an excess of tolylene diisocyanate (2,4-form / 2,6-form = 80/20) were used. Was reacted in a conventional manner to produce a prepolymer having a terminal isocyanate group content of 5.2%.
また、Ｂ成分としてメチレンビスｏ−クロルアニリン
を含む液状ポリアミン32部、トーナー30部、液状添加剤
33部、鉛触媒４部および耐候安定剤１部から成るものを
調合した。Further, 32 parts of a liquid polyamine containing methylene bis-o-chloroaniline as a B component, 30 parts of a toner, a liquid additive
A mixture comprising 33 parts, 4 parts of a lead catalyst and 1 part of a weathering stabilizer was prepared.
〔粒状ゴム層２の施工〕 上記Ａ成分10部、Ｂ成分10部を予め撹拌混合したの
ち、これに古タイヤを粉砕して得られた平均粒径3mm
（最小粒径2mm）の粒状ゴム80部を加えて更に混合アス
ファルトコンクリート基盤の上に1m2あたり8kg流し、金
ゴテでならしたのちローラーで軽く転圧し、約12時間放
置して硬化させた。厚さ約10mmの内部に空隙を形成した
弾性層が得られた。[Construction of granular rubber layer 2] After previously mixing and mixing 10 parts of the above-mentioned A component and 10 parts of the B component, an average particle diameter of 3 mm obtained by pulverizing an old tire with this was mixed.
80 parts of granular rubber (minimum particle size: 2 mm) was added, and the mixture was further poured onto a mixed asphalt concrete base at 8 kg per 1 m 2 , and after being leveled with a gold trowel, lightly rolled with a roller and allowed to cure for about 12 hours. An elastic layer having a gap formed therein with a thickness of about 10 mm was obtained.
〔フォーム状合成樹脂層３の施工〕 上記Ａ成分50部、Ｂ成分50部にシリコン整泡剤４部を
加え、ミキスタ工業株式会社製撹拌発泡機にて４分間撹
拌混合し、比重約0.8の混合物を得た。この混合物を粒
状ゴム層２の上に1m2当たり約1.5kg割合で流し、コテに
て中塗りを行った。約12時間放置して硬化させた。[Construction of the foam-shaped synthetic resin layer 3] To 50 parts of the above-mentioned A component and 50 parts of the B component, 4 parts of a silicone foam stabilizer were added, and the mixture was stirred and mixed for 4 minutes with a stirring and foaming machine manufactured by MIKISTA INDUSTRY CO. A mixture was obtained. The mixture was flowed on the granular rubber layer 2 at a rate of about 1.5 kg per 1 m 2 , and was middle-coated with a trowel. It was left to cure for about 12 hours.
〔表層４の施工〕 上記Ａ、Ｂ両成分を重量比１対１で撹拌混合しフォー
ム状合成樹脂３の上に流し、金ゴテでならして厚さ2mm
に舗装施工した。約12時間経過後、２液型アクリルウレ
タン サンシラールカラートップ（半つや）をエマレス
スプレー機械で1m2当たり約300g塗装した。硬化時間は
約６時間で艶消弾性舗装路面が得られた。[Construction of the surface layer 4] The above components A and B are stirred and mixed at a weight ratio of 1 to 1, flowed onto the foamed synthetic resin 3, and leveled with a gold iron to a thickness of 2 mm.
Paved construction. After a lapse of about 12 hours, about 300 g / m 2 of a two-pack type acrylic urethane Sanshiraru color top (half gloss) was applied using an Emaless spray machine. The curing time was about 6 hours, and a matte elastic pavement was obtained.
（発明の効果） この舗装路面の反発弾性をJIS−Ｋ−6301に従って測
定した結果、反発弾性は51％で比較例１の舗装路面に劣
らない高弾性を示し、体育館床や運動場等に適した性能
を有していた。(Effect of the Invention) As a result of measuring the rebound resilience of the pavement road surface in accordance with JIS-K-6301, the rebound resilience was 51%, showing high elasticity not inferior to the pavement road surface of Comparative Example 1, and was suitable for gymnasium floors, sports fields, etc. Had.
比較例１ アスファルトコンクリート基盤の上に実施例１のＡ、
Ｂ両成分から成るポリウレタン材料を厚さ7mmに施工し
たのち、実施例１と同じ艶消トップコート材料を塗装し
て得られた弾性舗装路面のJIS−Ｋ−6301による反発弾
性は50％であった。Comparative Example 1 A of Example 1 on an asphalt concrete base,
After the polyurethane material composed of both components B is applied to a thickness of 7 mm, the resilience according to JIS-K-6301 of the elastic pavement obtained by applying the same matte top coat material as in Example 1 is 50%. Was.
実施例２ 〔粒状ゴム層２の施工〕 不揮発分48％のカルボキシ変性スチレン・ブタジエン
ゴムラテックス100部に古タイヤを粉砕して得られた平
均粒径3mm（最小粒径2mm以上）の粒状ゴム150部を加え
て撹拌混合し、予め上記ラテックスを塗布したコンクリ
ート基盤の上に1m2当たり4kgずつ流し、金ゴテでならし
たのちローラーで軽くし転圧し、約２時間放置して硬化
乾燥させ、厚さ約4mmの内部に空隙を形成した多孔質の
弾性層が得られた。Example 2 [Application of granular rubber layer 2] Granular rubber 150 having an average particle size of 3 mm (minimum particle size of 2 mm or more) obtained by pulverizing an old tire with 100 parts of a carboxy-modified styrene / butadiene rubber latex having a nonvolatile content of 48%. parts were mixed by stirring and previously flushed by 4kg per 1 m 2 on a concrete foundation for coating the latex, pressed lightly rolling with a roller After conditioned by trowel, cured and left to dry for about 2 hours, the thickness As a result, a porous elastic layer having a void formed therein with a thickness of about 4 mm was obtained.
フォーム状合成樹脂層の施工迄は実施例１と全く同様
に行った。The procedure up to the application of the foamed synthetic resin layer was performed in exactly the same manner as in Example 1.
〔表層４の施工〕 不揮発分45％のアクリル酸ブチルを主成分とするアク
リルエマルジョン100部、酸化クロム粉末10部、ブチル
セロソルブ10部、エロジール＃200、４部および水10部
を撹拌混合し、フォーム状合成樹脂層の上にローラー刷
毛で1m2当たり500g塗布し、１時間放置したのち再度1m2
当たり500g塗布し、１時間放置して緑色の艶消舗装路面
を得た。[Construction of Surface Layer 4] 100 parts of an acrylic emulsion containing butyl acrylate having a nonvolatile content of 45% as a main component, 10 parts of chromium oxide powder, 10 parts of butyl cellosolve, 4 parts of Esilol # 200, and 10 parts of water are stirred and mixed, and then foamed. Apply 500 g per 1 m 2 on the synthetic resin layer with a roller brush, leave for 1 hour, and then re-apply 1 m 2
500 g per coat and left for 1 hour to obtain a green matt paved road surface.
この舗装路面のJIS−Ｋ−6301による反発弾性は34％
で比較例２の舗装路面に比べてより高い弾性を示し、テ
ニスコートや運動場等に適した性能を有していた。The rebound resilience of this paved road surface according to JIS-K-6301 is 34%.
Showed higher elasticity than the pavement road surface of Comparative Example 2, and had performance suitable for a tennis court, a sports ground, and the like.
比較例２ 実施例２で用いたラテックス100部と粒径1mm未満の細
粒ゴム50部とを撹拌混合し、予め上記ラテックスを塗布
したコンクリート基盤の上に1m2当たり2kg流し、金ゴテ
でならして施工した。約２時間放置して乾燥したのち、
再び1m2当たり2kg流す作業を更に２回くり返し厚さ約4m
mの平坦な舗装面を得た。この舗装面の上に実施例２と
全く同様に表層を施工して得られた艶消舗装路面のJIS
−Ｋ−6301による反発弾性は15％であった。Comparative Example 2 100 parts of the latex used in Example 2 and 50 parts of fine rubber having a particle size of less than 1 mm were stirred and mixed, and 2 kg per 1 m 2 was poured on a concrete base to which the above latex had been previously applied. And constructed. After leaving it to dry for about 2 hours,
Repeat the work of flowing 2 kg per 1 m 2 twice more, and the thickness is about 4 m
m flat pavement was obtained. JIS of matte paved road surface obtained by constructing the surface layer on this paved surface in exactly the same manner as in Example 2.
The rebound resilience according to -K-6301 was 15%.
第１図は本発明の方法で得られた弾性舗装路面の断面図
である。 図において、 １……基盤、２……粒状ゴム層、 ３……フォーム状合成樹脂層、 ４……合成樹脂表層、 を示す。FIG. 1 is a sectional view of an elastic pavement obtained by the method of the present invention. In the figures, 1... A base, 2... A granular rubber layer, 3... A foam synthetic resin layer, 4.
Claims (2)
とからなる空隙を内部に形成した粒状ゴム層を施工し、
次いでフォーム状合成樹脂にて中塗りを行い、次いで合
成樹脂表層を施工せしめてなる弾性路面の舗装方法であ
って、該合成樹脂バインダー及び合成樹脂表層がポリウ
レタンであり、該フォーム状合成樹脂が２液型ポリウレ
タンにシリコン整泡剤を添加して撹拌発泡機により機械
的発泡せしめたものであることを特徴とする弾性路面の
舗装方法。1. A granular rubber layer in which a void made of granular rubber and a synthetic resin binder is formed on a base,
Next, a method of paving an elastic road surface by applying an intermediate coating with a foam-like synthetic resin and then applying a synthetic resin surface layer, wherein the synthetic resin binder and the synthetic resin surface layer are polyurethane, and the foam-like synthetic resin is 2 A pavement method for an elastic road surface, which is obtained by adding a silicone foam stabilizer to a liquid polyurethane and mechanically foaming it with a stirring foamer.
して得られたものである請求項１記載の弾性路面の舗装
方法。2. The method according to claim 1, wherein the granular rubber is obtained by pulverizing an old tire or gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63028962A JP2764051B2 (en) | 1988-02-12 | 1988-02-12 | Paving method of elastic road surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63028962A JP2764051B2 (en) | 1988-02-12 | 1988-02-12 | Paving method of elastic road surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01207506A JPH01207506A (en) | 1989-08-21 |
| JP2764051B2 true JP2764051B2 (en) | 1998-06-11 |
Family
ID=12263041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63028962A Expired - Lifetime JP2764051B2 (en) | 1988-02-12 | 1988-02-12 | Paving method of elastic road surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2764051B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100821320B1 (en) * | 2001-03-15 | 2008-04-21 | 주식회사 정영씨엠 | Method and structure for permeable and elastic pavement |
| WO2003016632A1 (en) * | 2001-07-28 | 2003-02-27 | Yeong-Ryeol Lee | Concrete pavement layer with waste tire chip layer. |
| KR100404679B1 (en) * | 2001-07-28 | 2003-11-13 | 주식회사 삼기칼라콘 | pavement overlaid with waste tire chip composition |
| KR100497253B1 (en) * | 2002-02-26 | 2005-06-23 | (주)지케이 | Paving materials using chip of waste tire and urethane rubber |
| KR100497995B1 (en) * | 2004-02-06 | 2005-07-01 | 강성순 | Elastic permeable pavement comprising waste polyurethane chips for use on new roads and a paving method using the same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5448927A (en) * | 1977-09-27 | 1979-04-17 | Mitsui Toatsu Chemicals | Method of paving elastic road surface |
| JPS6059379B2 (en) * | 1981-03-31 | 1985-12-25 | 住友ゴム工業株式会社 | floor paving structure |
-
1988
- 1988-02-12 JP JP63028962A patent/JP2764051B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01207506A (en) | 1989-08-21 |
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| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |