JPH11336016A - Repair method of chloroprene-based synthetic resin pavement face - Google Patents
Repair method of chloroprene-based synthetic resin pavement faceInfo
- Publication number
- JPH11336016A JPH11336016A JP16299998A JP16299998A JPH11336016A JP H11336016 A JPH11336016 A JP H11336016A JP 16299998 A JP16299998 A JP 16299998A JP 16299998 A JP16299998 A JP 16299998A JP H11336016 A JPH11336016 A JP H11336016A
- Authority
- JP
- Japan
- Prior art keywords
- chloroprene
- synthetic resin
- pavement
- polyurethane
- layer
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、陸上競技場、運動
場、テニスコート、遊歩道、ジョギングコースなどに用
いられているクロロプレン系合成樹脂舗装面の改修工法
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of repairing a chloroprene-based synthetic resin pavement used for an athletic stadium, an athletic field, a tennis court, a promenade, a jogging course and the like.
【０００２】[0002]
【従来の技術】従来、全天候形のスポーツグランドの素
材には、各種の合成樹脂舗装材が用いられている。陸上
競技場用としては我国では主としてポリウレタン系舗装
材が用いられているが、外国ではクロロプレン系舗装材
が多く使用され、我国でも一部用いられている。このク
ロロプレン系舗装材は通常、工場生産された、厚さ１４
ｍｍ、幅１．２ｍ、長さ２０ｍ程度のシート材として提
供され、これをアスファルトコンクリート製グランド基
層上に貼り付けて使用する。図２は、敷設状態の断面図
であり、シート状のクロロプレン系舗装材１はアスファ
ルトコンクリート製のグランド基層Ａ上に接着剤を用い
て貼り付けられる。また、この舗装材の表面は通常、エ
ンボス加工３されている。2. Description of the Related Art Conventionally, various synthetic resin pavement materials have been used as a material for an all-weather sports ground. Polyurethane-based paving materials are mainly used in athletic fields in Japan, but chloroprene-based paving materials are widely used in foreign countries, and some are used in Japan. This chloroprene-based pavement material is usually factory-produced and has a thickness of 14 mm.
It is provided as a sheet material having a width of about 1.2 mm and a length of about 20 m, and is used by being attached to a ground base layer made of asphalt concrete. FIG. 2 is a cross-sectional view of the laid state, in which a sheet-like chloroprene-based pavement material 1 is stuck on a ground base layer A made of asphalt concrete using an adhesive. The surface of the pavement material is usually embossed 3.
【０００３】[0003]
【発明が解決しようとする課題】ところが、クロロプレ
ン系舗装材は、我国の気候風土に馴染みにくくて耐久劣
化が大で、特にスパイク傷による裂傷損傷や磨耗が激し
く、グランドの第１コースや、スタート部、助走路の踏
切部などは、使用頻度の高い競技場の場合、僅ずか２〜
３年でグランド表面がボロボロになり、グランドとして
の適格性を欠くまでになる。このようにクロロプレン系
舗装材は耐久性が劣る為、ポリウレタン系舗装材に比べ
て比較的短期間で貼り替えが必要となるが、この際、全
面貼り替えを行うと、材料及び施工費用が高くなり、か
つ、撤去舗装材の処分に於いても、それが分子構造的に
有機塩素を有する為、焼却するとダイオキシン発生のお
それが出るなどの問題がある。However, chloroprene-based pavement materials are difficult to adapt to the climate of Japan and suffer from large deterioration in durability. Section, runway crossing, etc., if the stadium is frequently used,
In three years, the surface of the ground has been ragged, losing its eligibility as a ground. As described above, chloroprene-based pavement materials are inferior in durability, so they need to be replaced in a relatively short period of time compared to polyurethane-based pavement materials. In addition, even in the disposal of the removed pavement material, there is a problem that dioxin may be generated when incinerated because it has organic chlorine in its molecular structure.
【０００４】本発明はこのような点に鑑み、改修コスト
が低く、改修後のグランドは耐久性に優れ、かつ、グラ
ンド特性の良い舗装面となる、クロロプレン系舗装面の
改修工法を提供せんとするものである。また、本発明は
改修後に、異なった樹脂からなる２層間の接着部での強
度が高く、容易に層間剥離することのないクロロプレン
系舗装面の改修工法を提供せんとするものである。[0004] In view of the above, the present invention is to provide a method for repairing chloroprene-based pavement surfaces, which has a low renovation cost, a renovated ground having excellent durability and excellent ground characteristics. Is what you do. Another object of the present invention is to provide a method for repairing a chloroprene-based pavement surface which has high strength at a bonding portion between two layers made of different resins after the repair and does not easily peel off.
【０００５】[0005]
【課題を解決するための手段】本発明のクロロプレン系
舗装面の改修工法の技術的手段は、既設のクロロプレン
系合成樹脂舗装面の表層部のみを平坦に削り取り、この
上に混合溶媒にシラン化合物を配合してなるプライマー
を塗布し、更にポリウレタン系合成樹脂舗装材を前記削
り取り量に相当する厚さだけ敷均らして硬化させ、下層
がクロロプレン系で、上層がポリウレタン系からなる２
層構造の舗装面に改修すことにある。The technical means of the method for repairing a chloroprene-based pavement surface according to the present invention is to flatten only the surface layer of the existing chloroprene-based synthetic resin pavement surface, and to further remove the silane compound on the mixed solvent. Is applied, and a polyurethane-based synthetic resin pavement is spread and cured by a thickness corresponding to the shaving amount, and the lower layer is made of chloroprene and the upper layer is made of polyurethane.
It has to be renovated to a layered pavement.
【０００６】また、プライマーとしては、混合溶媒にシ
ラン化合物を１〜５重量％配合したものが適する。As the primer, a mixture of a mixed solvent and a silane compound in an amount of 1 to 5% by weight is suitable.
【０００７】更に、シラン化合物としては、シラン化合
物として、ビニルトリクロロシラン、ビニルトリス（２
−メトキシエトキシ）シラン、γ−グリシドキシプロピ
ルトリメトキシシラン、γ−メタクリロキシプロピルト
リメトキシシラン、γ−（２−アミノエチル）アミノプ
ロピルトリメトキシシラン、γ−クロロプロピルトリメ
トキシシラン、γ−メルカプトプロピルトリメトキシシ
ラン、γ−アミノプロピルトリエトキシシランの１種ま
たは２種以上の混合物を用いるのが好ましい。Further, silane compounds include vinyltrichlorosilane and vinyltris (2
-Methoxyethoxy) silane, γ-glycidoxypropyltrimethoxysilane, γ-methacryloxypropyltrimethoxysilane, γ- (2-aminoethyl) aminopropyltrimethoxysilane, γ-chloropropyltrimethoxysilane, γ-mercapto It is preferable to use one or a mixture of two or more of propyltrimethoxysilane and γ-aminopropyltriethoxysilane.
【０００８】また、ポリウレタン層の上表面に、エンボ
ス及びトップコート処理をするのがよい。The upper surface of the polyurethane layer is preferably embossed and top-coated.
【０００９】[0009]
【発明の実施の形態】本発明の改修工法の実施の形態
を、図面の実施例に基づいて説明する。クロロプレン系
舗装面１は工場生産されたシート状のものを、グランド
基層Ａ上に接着剤２で貼り付けて構成されている。クロ
ロプレン舗装材には、全層均質のものや、組成を僅ずか
に異ならせた２層構造のものなどが市販提供されてい
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the repair method according to the present invention will be described with reference to the drawings. The chloroprene-based pavement surface 1 is formed by bonding a sheet-like material produced at a factory onto the ground base layer A with an adhesive 2. As the chloroprene pavement material, those having a uniform structure in all layers and those having a two-layer structure with slightly different compositions are commercially available.
【００１０】このようなクロロプレン系舗装面１の表面
が使用によって損耗した場合には、先ず表層の損耗部の
みを適当な厚さ削り取る。クロロプレン系舗装材の製造
当初の厚さは１４ｍｍであるので、通常は３〜５ｍｍ程
度を削り取れば充分である。この削り取りにはベルトサ
ンダー式研磨機などを用いるのがよく、削った面が平坦
面になるようにする。なお、図２における、４は削り取
り仮想線である。When the surface of the chloroprene-based pavement surface 1 is worn by use, first, only the worn portion of the surface layer is cut off to an appropriate thickness. Since the initial thickness of the chloroprene-based pavement material is 14 mm, it is usually sufficient to cut off about 3 to 5 mm. It is preferable to use a belt sander-type polishing machine or the like for this shaving, so that the shaved surface becomes a flat surface. In addition, in FIG. 2, 4 is a shaved virtual line.
【００１１】削った表面は、吸引式集塵機などで清掃し
た後、プライマー５を適当な手段で、０．３〜１．０ｋ
ｇ／ｍ2 塗布する。このプライマー５には混合溶媒にシ
ラン化合物を１〜５ｗｔ％配合したものを用いる。ここ
で用いる混合溶媒は、非極性溶媒と極性溶媒とを７：３
〜９：１の重量比で混合したものである。なお、ここで
の非極性溶媒としては、ベンゼン、トルエン、キシレ
ン、ヘキサンなどの芳香族炭化水素のうちの１種または
２種以上の混合溶媒が適する。また、極性溶媒として
は、アセトン、メチルエチルケトン、酢酸エチル、酢酸
ブチル、ジオキサン、テトロヒドロフラン、ジメチルス
ルフォキシド、ジメチルホルムアミド、ジメチルアセト
アミドのうちの１種または２種以上の混合物が適する。After the shaved surface is cleaned with a suction type dust collector or the like, the primer 5 is applied with a suitable means at 0.3 to 1.0 k.
g / m 2 . As the primer 5, a mixture of a mixed solvent and a silane compound in an amount of 1 to 5% by weight is used. The mixed solvent used here is a non-polar solvent and a polar solvent in a ratio of 7: 3.
~ 9: 1 by weight ratio. Here, as the non-polar solvent, one or a mixture of two or more of aromatic hydrocarbons such as benzene, toluene, xylene, and hexane is suitable. Further, as the polar solvent, one or a mixture of one or more of acetone, methyl ethyl ketone, ethyl acetate, butyl acetate, dioxane, tetrahydrofuran, dimethyl sulfoxide, dimethylformamide, and dimethylacetamide is suitable.
【００１２】シラン化合物としては、ビニルトリクロロ
シラン、ビニルトリス（２−メトキシエトキシ）シラ
ン、γ−グリシドキシプロピルトリメトキシシラン、γ
−メタクリロキシプロピルトリメトキシシラン、γ−
（２−アミノエチル）アミノプロピルトリメトキシシラ
ン、γ−クロロプロピルトリメトキシシラン、γ−メル
カプトプロピルトリメトキシシラン、γ−アミノプロピ
ルトリメトキシシランのうちの１種または２種以上を混
合して用いる。Examples of the silane compound include vinyltrichlorosilane, vinyltris (2-methoxyethoxy) silane, γ-glycidoxypropyltrimethoxysilane, γ
-Methacryloxypropyltrimethoxysilane, γ-
One or more of (2-aminoethyl) aminopropyltrimethoxysilane, γ-chloropropyltrimethoxysilane, γ-mercaptopropyltrimethoxysilane, and γ-aminopropyltrimethoxysilane are used in combination.
【００１３】平坦に削り取った面への前記プライマー５
の塗布後、２時間以内に２液性常温硬化形ポリウレタン
舗装材を２〜４ｍｍ厚に敷均らしてポリウレタン層６を
形成する。この硬化後、舗装表面の粗面化模様形成のた
め、このポリウレタン層６の上面に、ポリウレタンに無
定形シリカ微粉末や極性溶剤などを加えて作った、構造
粘性指数３〜６の特殊変性ポリウレタンを、マスチック
ローラを用いて、縦横方向に丁寧に展回しながら平均１
ｍｍ厚程度のエンボス層７を形成する。更にこの上にア
クリル変性ポリウレタン製のトップコート剤を１．０ｋ
ｇ／ｍ2 ローラ塗布して最上表面にトップコート層８を
形成して、舗装表面を仕上げる。これにより、下層がク
ロロプレン、上層がポリウレタンからなる複合弾性全天
候形舗装面になる。The above-mentioned primer 5 is applied to a flatly cut surface.
After application, the two-component cold-setting polyurethane pavement is spread to a thickness of 2 to 4 mm within 2 hours to form a polyurethane layer 6. After the curing, a specially modified polyurethane having a structural viscosity index of 3 to 6 is prepared by adding amorphous silica fine powder or a polar solvent to the upper surface of the polyurethane layer 6 to form a roughened pattern on the pavement surface. With an average of 1
An emboss layer 7 having a thickness of about mm is formed. Further, a top coat made of acrylic-modified polyurethane is further applied on top of this for 1.0 k.
g / m 2 roller is applied to form the top coat layer 8 on the uppermost surface to finish the pavement surface. This provides a composite elastic all-weather pavement surface in which the lower layer is made of chloroprene and the upper layer is made of polyurethane.
【００１４】このような２層構造の舗装面は、全天候ト
ラック走路としての耐スパイク性などを保持する為、上
下両層間の接着強度は充分に大きくなければならない。
通常、その接着強度は、建設省建築研究所開発の接着力
試験法で５ｋｇ／ｃｍ2 以上が必要とされている。プラ
イマーの成分を異ならせた４種の実施例の接着力測定試
験を行った結果が表１、表２に示されている。なお、こ
の接着力試験では、改修されたグランドの舗装面から、
４×４ｃｍの大きさの試験片を切り取って、この試験片
をコンクリート床板にエポキシ樹脂接着剤を強固に貼り
付け、また、試験片の上面には試験器のアタッチメント
を同じくエポキシ樹脂接着剤を用いて貼り付け、その
後、アタッチメントを上方に引き上げて、試験片の上下
両層間の接着部が剥離した時の荷重を調べた。The pavement surface having such a two-layer structure must have a sufficiently large adhesive strength between the upper and lower layers in order to maintain spike resistance and the like as an all-weather track runway.
Usually, the adhesive strength is required to be 5 kg / cm 2 or more in an adhesive strength test method developed by the Building Research Institute of the Ministry of Construction. Tables 1 and 2 show the results of an adhesive strength measurement test performed on four examples using different primer components. In this adhesion test, from the pavement surface of the renovated ground,
A test piece of 4 × 4 cm is cut out, and this test piece is firmly adhered to a concrete floorboard with an epoxy resin adhesive. On the upper surface of the test piece, an epoxy resin adhesive is used as an attachment of a tester. Then, the attachment was pulled upward, and the load when the bonded portion between the upper and lower layers of the test piece was peeled was examined.
【００１５】[0015]
【表１】 [Table 1]
【００１６】[0016]
【表２】 [Table 2]
【００１７】表２の試験結果から分かるように、実施例
１〜４のものはいずれも必要とされる５ｋｇ／ｃｍ2 を
越えており、クロロプレン層の破断強度以上の接着力を
有するので、接着強度としては充分である。更に、実施
例のものは、クロロプレン層とポリウレタン層との２層
構成である為、両素材の長所を合わせ持つことになり、
グランドとして優れた特性を有する舗装面となる。表３
に、従来のポリウレタンやクロロプレンの単独舗装面
と、実施例の舗装面とのグランド特性の差異が示されて
いる。As can be seen from the test results in Table 2, all of Examples 1 to 4 exceed the required 5 kg / cm 2 and have an adhesive strength not less than the breaking strength of the chloroprene layer. The strength is sufficient. Furthermore, since the thing of an Example is a two-layer structure of a chloroprene layer and a polyurethane layer, it has the advantage of both materials,
The paved surface has excellent characteristics as a ground. Table 3
2 shows a difference in ground characteristics between the conventional pavement surface of polyurethane or chloroprene and the pavement surface of the example.
【００１８】[0018]
【表３】 [Table 3]
【００１９】なお、本発明は前記の実施例に限定される
ものではなく、特許請求の範囲の記載の範囲内で自由に
変形実施可能である。特に、既設クロロプレン舗装面の
削り取り厚、削り方式、上面に形成するポリウレタン舗
装材の種類、その表面仕上げ方式などは自由である。更
に、本発明は既設のクロロプレン系舗装面の全面改修に
用いるのが、主であるが、傷みの激しい箇所のみの部分
改修にも勿論利用可能である。The present invention is not limited to the above embodiment, but can be freely modified and implemented within the scope of the claims. In particular, the shaving thickness of the existing chloroprene pavement surface, the shaving method, the type of the polyurethane pavement material formed on the upper surface, the surface finishing method, and the like are free. Further, the present invention is mainly used for the entire renovation of the existing chloroprene-based pavement surface. However, the present invention can of course be used for the partial rehabilitation of only severely damaged portions.
【００２０】[0020]
【発明の効果】本発明の改修工法は、既設のクロロプレ
ン系舗装面の傷みの激しい表層部のみを削り取るだけ
で、下層部はそのまま残す方式であるから、材料的に
も、施工的にもコストを押さえることができ、既設グラ
ンド等の改修を短期間で、廉価に行うことができる。ま
た、本発明では、改修後の舗装面が、クロロプレンとポ
リウレタンとの２層構造となるので、クロロプレンとポ
リウレタンとの長所を合わせ持ち、耐スパイク性や耐候
性に優れ、適度な弾力性を備えた、元のクロロプレン系
舗装面よりもグランド特性の良い舗装面に改修可能であ
る。更に、本発明では、樹脂の異なった上下２層構造で
あるが、両層間は混合溶媒とシラン化合物とからなるプ
ライマーによって接着しているので、接着面の強度は高
く、激しい運動や長期の使用によっても層間が剥離する
ことはない。According to the renovation method of the present invention, only the severely damaged surface layer of the existing chloroprene-based pavement surface is scraped off, and the lower layer is left as it is. And repair of existing grounds can be performed in a short period of time and at low cost. Further, in the present invention, since the pavement surface after the renovation has a two-layer structure of chloroprene and polyurethane, it has the advantages of chloroprene and polyurethane, has excellent spike resistance and weather resistance, and has appropriate elasticity. In addition, it can be renovated to a pavement with better ground characteristics than the original chloroprene pavement. Furthermore, in the present invention, the upper and lower two-layer structure of the resin is different, but since both layers are bonded by a primer composed of a mixed solvent and a silane compound, the strength of the bonding surface is high, and the vigorous movement and long-term use Does not cause delamination between layers.
【００２１】請求項２のものでは、上下２層間の接着力
が充分で、層間剥離を起こすことのない舗装面に低コス
トで改修可能である。According to the second aspect, the adhesive strength between the upper and lower layers is sufficient, and the pavement surface without delamination can be repaired at low cost.
【００２２】請求項３のものでは、クロロプレン下層と
ポリウレタン上層との接着に適するプライマーを得るこ
とができ、２層間の接着強度に富んだ舗装面に改修でき
る。According to the third aspect, a primer suitable for bonding the lower layer of chloroprene and the upper layer of polyurethane can be obtained, and the pavement surface having high bonding strength between the two layers can be repaired.
【００２３】請求項４のものでは、改修舗装面の上表面
にエンボスが形成され、かつ、表面処理が施されている
ので、適度な摩擦特性を有し、かつ使用感に優れ、その
上、表面強度の高い舗装面に改修可能である。According to the fourth aspect, the embossment is formed on the upper surface of the renovated pavement surface and the surface treatment is performed, so that the modified pavement surface has appropriate friction characteristics and is excellent in feeling of use. It can be renovated to a pavement surface with high surface strength.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明の改修工法の実施例の断面図。FIG. 1 is a cross-sectional view of an embodiment of a repair method according to the present invention.
【図２】従来のクロロプレン系舗装面の断面図。FIG. 2 is a cross-sectional view of a conventional chloroprene-based pavement surface.
１ クロロプレン層 ４ 削り取り線 ５ プライマー ６ ポリウレタン層 ７ エンボス層 ８ トップコート層 Reference Signs List 1 chloroprene layer 4 scraping line 5 primer 6 polyurethane layer 7 embossed layer 8 top coat layer
Claims (4)
表層部のみを平坦に削り取り、この上に混合溶媒にシラ
ン化合物を配合してなるプライマーを塗布し、更にポリ
ウレタン系合成樹脂舗装材を前記削り取り量に相当する
厚さだけ敷均らして硬化させ、下層がクロロプレン系
で、上層がポリウレタン系からなる２層構造の舗装面に
改修するクロロプレン系合成樹脂舗装面の改修工法。1. A surface layer portion of an existing pavement surface of a chloroprene-based synthetic resin is scraped flat, a primer made of a mixed solvent containing a silane compound is applied thereon, and a pavement material of a polyurethane-based synthetic resin is further scraped off. A method of repairing a chloroprene-based synthetic resin pavement surface in which a two-layered pavement surface consisting of a chloroprene-based lower layer and a polyurethane-based upper layer is renovated and hardened by spreading and curing the same amount of thickness.
物を１〜５重量％配合したものを用いる請求項１記載の
クロロプレン系合成樹脂舗装面の改修工法。2. The method for repairing a chloroprene-based synthetic resin pavement surface according to claim 1, wherein the primer comprises a mixture of a silane compound and 1 to 5% by weight of a mixed solvent.
シラン、ビニルトリス（２−メトキシエトキシ）シラ
ン、γ−グリシドキシプロピルトリメトキシシラン、γ
−メタクリロキシプロピルトリメトキシシラン、γ−
（２−アミノエチル）アミノプロピルトリメトキシシラ
ン、γ−クロロプロピルトリメトキシシラン、γ−メル
カプトプロピルトリメトキシシラン、γ−アミノプロピ
ルトリエトキシシランの１種または２種以上の混合物を
用いる請求項１記載のクロロプレン系合成樹脂舗装面の
改修工法。3. A silane compound such as vinyltrichlorosilane, vinyltris (2-methoxyethoxy) silane, γ-glycidoxypropyltrimethoxysilane, γ
-Methacryloxypropyltrimethoxysilane, γ-
The method according to claim 1, wherein one or a mixture of two or more of (2-aminoethyl) aminopropyltrimethoxysilane, γ-chloropropyltrimethoxysilane, γ-mercaptopropyltrimethoxysilane, and γ-aminopropyltriethoxysilane is used. Repair method for pavement surface of chloroprene synthetic resin.
びトップコート処理をする請求項１記載のクロロプレン
系合成樹脂舗装面の改修工法。4. The method according to claim 1, wherein the upper surface of the polyurethane layer is embossed and top-coated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16299998A JP3552914B2 (en) | 1998-05-26 | 1998-05-26 | Repair method for pavement surface of chloroprene synthetic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16299998A JP3552914B2 (en) | 1998-05-26 | 1998-05-26 | Repair method for pavement surface of chloroprene synthetic resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11336016A true JPH11336016A (en) | 1999-12-07 |
| JP3552914B2 JP3552914B2 (en) | 2004-08-11 |
Family
ID=15765283
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16299998A Expired - Fee Related JP3552914B2 (en) | 1998-05-26 | 1998-05-26 | Repair method for pavement surface of chloroprene synthetic resin |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007113319A (en) * | 2005-10-21 | 2007-05-10 | Ibiken Kk | Painted floor remodeling method |
-
1998
- 1998-05-26 JP JP16299998A patent/JP3552914B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007113319A (en) * | 2005-10-21 | 2007-05-10 | Ibiken Kk | Painted floor remodeling method |
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| Publication number | Publication date |
|---|---|
| JP3552914B2 (en) | 2004-08-11 |
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