JP2005336239A - Joint plate and joint tape - Google Patents
Joint plate and joint tape Download PDFInfo
- Publication number
- JP2005336239A JP2005336239A JP2004153712A JP2004153712A JP2005336239A JP 2005336239 A JP2005336239 A JP 2005336239A JP 2004153712 A JP2004153712 A JP 2004153712A JP 2004153712 A JP2004153712 A JP 2004153712A JP 2005336239 A JP2005336239 A JP 2005336239A
- Authority
- JP
- Japan
- Prior art keywords
- asphalt
- joint
- parts
- resin
- foam sheet
- 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
- 239000010426 asphalt Substances 0.000 claims abstract description 57
- 229920005989 resin Polymers 0.000 claims abstract description 47
- 239000011347 resin Substances 0.000 claims abstract description 47
- 239000006260 foam Substances 0.000 claims abstract description 44
- 238000005187 foaming Methods 0.000 claims abstract description 14
- 239000000945 filler Substances 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 230000035515 penetration Effects 0.000 claims abstract description 4
- 239000011342 resin composition Substances 0.000 claims abstract 3
- -1 polyethylene Polymers 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 229920001903 high density polyethylene Polymers 0.000 claims description 7
- 239000004700 high-density polyethylene Substances 0.000 claims description 7
- 229920001684 low density polyethylene Polymers 0.000 claims description 7
- 239000004702 low-density polyethylene Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 5
- 239000003208 petroleum Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 3
- 239000000463 material Substances 0.000 description 23
- 230000000052 comparative effect Effects 0.000 description 9
- 239000004088 foaming agent Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 238000004132 cross linking Methods 0.000 description 5
- 239000003431 cross linking reagent Substances 0.000 description 5
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 4
- 239000004156 Azodicarbonamide Substances 0.000 description 4
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 4
- 235000019399 azodicarbonamide Nutrition 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 229920002522 Wood fibre Polymers 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000002025 wood fiber Substances 0.000 description 3
- HGDULKQRXBSKHL-UHFFFAOYSA-N 1,1-bis(2-methylprop-2-enoyloxy)propyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC(CC)(OC(=O)C(C)=C)OC(=O)C(C)=C HGDULKQRXBSKHL-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229920001821 foam rubber Polymers 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000005504 petroleum refining Methods 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000011846 petroleum-based material Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
Description
本発明は様々な土木構造物工事に於いて使用されている目地板及び目地材に関するものであり、従来、発泡体系の目地板には配合混入が困難で製造することができなかった硬質アスファルトを添加した目地板及び目地テープに好適な発泡体シートを提供するものである。 The present invention relates to joint plates and joint materials used in various civil engineering works. Conventionally, hard asphalt that could not be manufactured due to difficulty in blending was added to foamed joint plates. A foam sheet suitable for the added joint plate and joint tape is provided.
コンクリート製の土木構造物には様々なものがあるが、そのうちの多くは現場打ちのコンクリートで作られている。例えば、コンクリート舗装道路、埠頭、空港、工場内や事業所内のヤードなどの広い平面的なコンクリート構造物から、ダム、高架、護岸擁壁、法面、建築物などの立体的なものまで様々である。この現場打ちのコンクリートで構造物を建造する際、コンクリートの大きさや構造によってはその途中に目地板を挿入している。目地板はコンクリートが温度膨張してもその膨張による移動量を吸収する役目を果たしており、これが無いと膨張による圧力によりひび割れやコンクリートの破壊を生じる。 There are various types of civil engineering structures, but most of them are made of on-site concrete. For example, it ranges from wide flat concrete structures such as concrete paved roads, wharfs, airports, yards in factories and offices to three-dimensional structures such as dams, elevated bridges, revetment retaining walls, slopes, and buildings. is there. When constructing a structure with this on-site concrete, a joint plate is inserted in the middle depending on the size and structure of the concrete. The joint plate plays the role of absorbing the amount of movement due to the expansion of the concrete even if the temperature expands. If it does not exist, the pressure due to the expansion will cause cracks and destruction of the concrete.
目地板はコンクリートよりも柔らかい材料で、圧縮されても復元しやすい材料で作られている。例えば木材繊維を互いに絡ませて板状にし、アスファルトを染み込ませたもの、樹脂を発泡させた板（樹脂発泡体目地板）、ゴムを発泡させた板（ゴム発泡体目地板）、アスファルトと木質繊維等を混合して板状にし、表裏面を被覆材で覆ったもの（瀝青質系目地板）などである（特許文献１および２）。 The joint plate is made of a material that is softer than concrete and can be easily restored even when compressed. For example, wood fibers entangled with each other to form a plate and soaked with asphalt, a resin foamed board (resin foam joint board), a rubber foam board (rubber foam joint board), asphalt and wood fiber Etc. are mixed to form a plate and the front and back surfaces are covered with a covering material (bituminous joint plate) (Patent Documents 1 and 2).
このような目地板はコンクリート構造物を作る際に予め目地を形成させようとする位置に設置しておいてから、生コンクリートを打設したり、あるいは既に硬化した一部のコンクリート面に目地板を貼り付けてから、生コンクリートを打設する。このようにして挿入された目地板は構造物の完成後、その膨張を吸収する機能を果たす。 Such a joint plate is placed in a position where a joint is to be formed in advance when making a concrete structure, and then the concrete plate is placed on a concrete surface that has already been hardened or has been hardened. Paste and put ready-mixed concrete. The joint plate thus inserted functions to absorb the expansion after the structure is completed.
これら従来からの目地板は次のような性状を有している。
(1)瀝青質系目地板は価格的に経済性を有するが、コンクリート板の膨張や収縮による目地板のコンクリート舗装表面へのはみ出しが大きく、しかも寒暑の変化に対しての変化も大きく、復元性が小さいことが問題となることがあった。
(2)ゴムや樹脂の発泡体目地板は、高い復元性能を有し、コンクリート板からのはみ出しも少ないが、材質的に剛性に乏しいために施工上の作業性が悪く、しかも圧縮強度が小さいので、コンクリートの押圧で目地板の所定の厚みが圧縮された状態で目地に存在し、問題となることがあった。また、アスファルト系の目地板に比べて経済性に欠ける。
(3)アスファルトを繊維板に浸透させて製造される瀝青繊維質目地板は瀝青質系目地板の性能の一部を改善してはいるが、発泡体目地板ほどの高い復元性は無い。また海岸や川岸などで長期間にわたり流水に曝されると劣化して損傷を受ける場合もある。
These conventional joint plates have the following properties.
(1) Bituminous joint planks are economical in price, but the joints have a large protrusion to the concrete pavement surface due to expansion and contraction of the concrete boards, and the changes due to changes in the cold and heat are also large. There was a case that the low nature was a problem.
(2) Rubber and resin foam joint boards have high restoration performance and few protrusions from the concrete board, but they are poor in workability due to poor material rigidity and low in compressive strength. As a result, the predetermined thickness of the joint plate is compressed in the state of being pressed by the concrete, which may be a problem. In addition, it is less economical than asphalt type joint boards.
(3) The bitumen fiber joint plate produced by infiltrating the asphalt into the fiberboard has improved some of the performance of the bituminous joint plate, but not as high as the foam joint plate. In addition, it may deteriorate and be damaged if exposed to running water for a long time on the coast or riverbank.
このように従来の目地板はその性質に一長一短があり、全てを満足するという目地板は無いというのが実状である。
本発明はこのように種類に応じて性能が限られている目地板に於いて、従来の目地板の持つ欠点を改良し、新たな特長を持った目地板を提供するものである。そのうちの一点は
アスファルト系の目地板の長所を持ち、それに発泡体目地板の長所を取り入れることである。また、もう一つの点は優れた耐久性を持たせた目地板を追求することである。これらの目標を持って本発明者らは鋭意検討の結果、本発明品を発明するに至った。
The present invention provides a joint plate having new features by improving the drawbacks of the conventional joint plate in the joint plate having limited performance depending on the type. One of them is that it has the advantages of asphalt joint plates and incorporates the advantages of foam joint plates. Another point is to pursue a joint plate with excellent durability. As a result of intensive studies, the present inventors have invented the product of the present invention with these goals.
本発明は、従来は樹脂に混合することが困難であった硬質アスファルトを混入してなる目地板等に使用できる樹脂発泡体シートに関するものである。
本発明のアスファルト含有樹脂発泡体シートは、基材となる樹脂に、特定のアスファルトを混入し、板又はシート状に成形し発泡せしめてなるものである。
The present invention relates to a resin foam sheet that can be used for a joint plate or the like formed by mixing hard asphalt that has been difficult to mix with a resin.
The asphalt-containing resin foam sheet of the present invention is obtained by mixing a specific asphalt into a resin serving as a base material, and forming and foaming it into a plate or sheet shape.
本発明の発泡体シートは、従来の樹脂発泡体と同等の力学的性質を有しているにもかかわらず、アスファルトという安価な材料を含むため経済性に優れる。また、ノコクズを添加することができるため、資源のリサイクル活用が可能である。 The foam sheet of the present invention is economical because it includes an inexpensive material called asphalt, although it has mechanical properties equivalent to those of conventional resin foams. In addition, since sawdust can be added, resources can be recycled.
アスファルトはその代表的な品種では常温では固体で、僅かな加熱で粘い流動性を生じるものであり、従来はこれを樹脂発泡体の製造上でその配合組成物に加えることができなかった。理由としては、樹脂発泡体はその配合組成物を押出し成型機にかけるときに各配合成分が均一に分散していることが必要があるが、通常のアスファルトのように加熱して流動性の液体にして混合しなければならないものの場合には、通常のアスファルトは樹脂とは流動性等の物性が異なるためどうしても均一に分散しないという問題があった。
しかしながら本発明者らはアスファルトとして特殊な硬質アスファルトを用いることでこの問題を解決した。この硬質のアスファルトは、常温で顆粒状あるいは粉末状（粒径２ｍｍ以下程度）に粉砕が可能であり、樹脂中に均一に分散させることが可能である。このような硬質のアスファルトは石油精製から得られるものと天然のものとがある。石油精製から得られるものはプロパン脱瀝製法によって得られる残渣をブローイング処理（酸素を吹き込んでストレートアスファルトをブロンアスファルトに変える処理）したものである。その性状は表１に示される。
Asphalt is a solid at room temperature in typical varieties, and generates viscous fluidity by slight heating. Conventionally, asphalt cannot be added to the blended composition in the production of a resin foam. The reason for this is that the resin foam needs to have each compounding component uniformly dispersed when the compounding composition is applied to an extrusion molding machine. in in the case of a must be mixed with the ordinary asphalt the resin has a problem that not just uniformly distributed for different physical properties such as flowability.
However, the present inventors solved this problem by using special hard asphalt as asphalt. This hard asphalt can be pulverized into granules or powders (particle size of about 2 mm or less) at room temperature, and can be uniformly dispersed in the resin. Such hard asphalts include those obtained from petroleum refining and natural ones. What is obtained from petroleum refining is the residue obtained by the propane degassing method, which is blown (oxygen is blown to convert straight asphalt to bron asphalt). The properties are shown in Table 1.
天然のものには例えばギルソナイトと呼ばれる硬質の天然アスファルトがある。ギルソナイトは米国に産出されるが、この種の天然のアスファルトを用いる時の指標としては上
記の改質アスファルトと同様に、針入度が０〜５（２５℃）で軟化点９０〜１２０℃に合致するものであることが望ましい。
なお、同じ石油系材料で表１の物性と同様な物性を呈する「芳香族石油樹脂」（アスファルト類似物）がある。これは石油から生産される比較的安価な樹脂であるが、これを本発明のアスファルトの代わりに用いることができるし、また、アスファルトと混合して用いることもできる。したがって、本発明における「硬質アスファルト」の語には硬質アスファルトと同様な物性を有する芳香族樹脂をも意味するものと理解されたい。
アスファルトは、本発明の樹脂発泡体の樹脂１００部（重量部：以下同じ）に対して１〜８０部の範囲、好ましくは１〜５０部、より好ましくは２０〜５０部の割合で混合すると良い。
顆粒状あるいは粉末状アスファルトの大きさとしては、目的によって異なるが、粒径２ｍｍ以下、好ましくは０．５〜１．５ｍｍである。
Natural materials include, for example, hard natural asphalt called gilsonite. Gilsonite is produced in the United States, but as an index when using this type of natural asphalt, the penetration is 0 to 5 (25 ° C.) and the softening point is 90 to 120 ° C., similar to the modified asphalt described above. It is desirable that they match.
In addition, there is an “aromatic petroleum resin” (asphalt analog) that exhibits the same physical properties as those shown in Table 1 using the same petroleum-based material. Although this is a relatively inexpensive resin produced from petroleum, it can be used in place of the asphalt of the present invention, or it can be used by mixing with asphalt. Therefore, the term “hard asphalt” in the present invention should be understood to mean an aromatic resin having the same physical properties as hard asphalt.
Asphalt may be mixed in the range of 1 to 80 parts, preferably 1 to 50 parts, more preferably 20 to 50 parts with respect to 100 parts (parts by weight: the same shall apply hereinafter) of the resin foam of the present invention. .
The size of the granular or powdered asphalt varies depending on the purpose, but the particle size is 2 mm or less, preferably 0.5 to 1.5 mm.
本発明のアスファルト含有発泡体シートを製造する方法としては、特に限定されないが一例として化学発泡がある。細かいペレット状又は粉末状の樹脂に発泡剤、架橋剤、架橋助剤等の助剤を混合する。これらの助剤は粉体状の材料であり、これら混合組成物に顆粒状又は粉末状の硬質アスファルトを混合する。これらの各材料の混合は、例えば、材料の全てを粉体用ミキサーに投入しで均一に分散させる。
次にこの材料（混合組成物)を押出し成型機もしくは加熱ロールに連続して投入し、加熱混練しながら板状に成型する。予め目的とする製品厚みにするための発泡前の厚みに成型する。使用する樹脂や発泡剤等によって異なるが、例えば１０ｍｍの厚みの製品を得るためには、発泡前の中間体を５ｍｍ程度に成型する。
次にこの板状成型品を加熱発泡させる。発泡のための加熱温度等は特に限定されないが、上記ポリエチレンの場合は２２０℃の熱風循環式発泡炉中に保持して発泡させることによって所定の厚みのアスファルト含有樹脂発泡体を得ることができる。
Although it does not specifically limit as a method of manufacturing the asphalt containing foam sheet of this invention, There exists chemical foaming as an example. An auxiliary agent such as a foaming agent, a cross-linking agent, and a cross-linking auxiliary agent is mixed with a fine pellet or powdery resin. These auxiliaries are powdery materials, and granular or powdery hard asphalt is mixed with these mixed compositions. For mixing these materials, for example, all of the materials are put into a powder mixer and uniformly dispersed.
Next, this material (mixed composition) is continuously charged into an extrusion molding machine or a heating roll, and molded into a plate shape while being heated and kneaded. It is molded in advance to the thickness before foaming to achieve the desired product thickness. For example, in order to obtain a product having a thickness of 10 mm, the intermediate body before foaming is molded to about 5 mm, although it varies depending on the resin and foaming agent used.
Next, this plate-shaped molded product is heated and foamed. The heating temperature for foaming is not particularly limited, but in the case of the above polyethylene, an asphalt-containing resin foam having a predetermined thickness can be obtained by holding in a hot air circulating foaming furnace at 220 ° C. and foaming.
樹脂発泡体の基材となる樹脂材料の種類は特に限定されないが、例えばポリエチレン、ＥＶＡ樹脂（エチレン−酢酸ビニル共重合樹脂）、ポリプロピレン、ポリウレタン、天然ゴム、合成ゴム等が挙げられる。これらは１種で用いても２種以上を混合しても良い。好ましくは、ポリエチレンで、より好ましくは低密度ポリエチレンと高密度ポリエチレンの混合物である。これらの混合割合は特に限定されないが、好ましくは低密度ポリエチレン／高密度ポリエチレンの比が１／２〜１／１程度で用いると良い。
本発明のアスファルト含有樹脂発泡体には、顆粒状あるいは粉末状の硬質アスファルトと一緒に混合する粉末材料として従来のアスファルト系目地板で用いられているノコクズ（鋸屑）、木質繊維等の充填材を添加することもできる。充填材としは、好ましくはノコクズで、その添加にはノコクズの粒径を１ｍｍ以下の細かい粉末にすると、均一な仕上がりの発泡体を得ることができる。配合量は発泡体組成物の全体量において１〜２０重量％の範囲で加えられる。
Although the kind of resin material used as the base material of the resin foam is not particularly limited, examples thereof include polyethylene, EVA resin (ethylene-vinyl acetate copolymer resin), polypropylene, polyurethane, natural rubber, and synthetic rubber. These may be used alone or in combination of two or more. Polyethylene is preferable, and a mixture of low density polyethylene and high density polyethylene is more preferable. The mixing ratio is not particularly limited, but it is preferable that the ratio of low density polyethylene / high density polyethylene is about 1/2 to 1/1.
The asphalt-containing resin foam of the present invention includes fillers such as sawdust and wood fibers used in conventional asphalt joint plates as a powder material to be mixed together with granular or powdered hard asphalt. It can also be added. The filler is preferably sawdust, and when added, if the sawdust particle size is a fine powder of 1 mm or less, a foam with a uniform finish can be obtained. A compounding quantity is added in the range of 1-20 weight% in the whole quantity of a foam composition.
本発明のアスファルト含有樹脂発泡体は、適度の厚み（例えば厚み５ｍｍ）のシートとしても良く、また、適当な巾の連続したテープ状に仕上げることでこれを止水用、緩衝用の目地テープとして用いることも可能である。目地テープはコンクリート構造物などの接合部や部材同士の接合部に挟み込んでその弾力性や粘着性で緩衝材としてあるいは止水材として機能するものであり、樹脂発泡体をテープ状やロープ状の巻物にした製品である。その例としてテープの片面または両面に粘着性の石油樹脂等の粘着剤を塗布して粘着性のあるテープとすると、これを目的物の面に貼り付けて、その後、これに接合する部材を接合させて用いることができる。
目地テープはこのように接合する部材同士の間に挟み込むテープとして使用されるほか、所定の空隙をもつ目地などの隙間に詰め込む材料や目地をシールするときのシール材を保持するバックアップ材として用いることもできる。
The asphalt-containing resin foam of the present invention may be a sheet having an appropriate thickness (for example, 5 mm in thickness), and is finished as a continuous tape having an appropriate width to form a joint tape for water stopping and buffering. It is also possible to use it. Joint tape is sandwiched between joints such as concrete structures and joints between members, and functions as a cushioning material or water-stopping material due to its elasticity and adhesiveness. Resin foam is tape-like or rope-like It is a product made into a scroll. As an example, if an adhesive such as an adhesive petroleum resin is applied to one or both sides of the tape to form an adhesive tape, the tape is affixed to the target surface, and then the members to be bonded to it are bonded. Can be used.
In addition to being used as a tape that is sandwiched between members to be joined in this way, joint tape is used as a back-up material that holds materials that are packed into gaps such as joints with a predetermined gap and seal materials when sealing joints. You can also.
以下、本発明を実施例と共に詳細に説明する。
実施例１
低密度ポリエチレン２２部と高密度ポリエチレン４０部に顆粒状のアスファルト３８部および発泡剤（アゾジカルボンアミド）６．２部と架橋剤（ジクミルパーオキサイド）０．９部、架橋助剤（トリメチロールプロパントリメタクリレート）０．５部を混合し、１２０℃のオープンロールにて練り合わせ、５ｍｍの板状に成型した。
この板状成型品を２２０℃の熱風循環式発泡炉中に保持することにより発泡させ、厚さ１０ｍｍ、密度７５ｋｇ/ｍ3のアスファルト配合架橋発泡ポリエチレンシートを得た。
Hereinafter, the present invention will be described in detail together with examples.
Example 1
22 parts of low density polyethylene and 40 parts of high density polyethylene, 38 parts of granular asphalt, 6.2 parts of foaming agent (azodicarbonamide), 0.9 part of crosslinking agent (dicumyl peroxide), crosslinking aid (trimethylol) (Propane trimethacrylate) 0.5 part was mixed, kneaded with an open roll at 120 ° C., and molded into a 5 mm plate shape.
This plate-shaped molded article was foamed by being held in a hot air circulation type foaming furnace at 220 ° C. to obtain an asphalt-blended crosslinked foamed polyethylene sheet having a thickness of 10 mm and a density of 75 kg / m 3 .
実施例２
低密度ポリエチレン４０部と高密度ポリエチレン４０部に顆粒状のアスファルト２０部および発泡剤（アゾジカルボンアミド）６．２部と架橋剤（ジクミルパーオキサイド）０．９部、架橋助剤（トリメチロールプロパントリメタクリレート）０．５部を混合し、１２０℃のオープンロールにて練り合わせ、５ｍｍの板状に成型した。
この板状成型品を２２０℃の熱風循環式発泡炉中に保持することにより発泡させ、厚さ１０ｍｍ、密度７２ｋｇ/ｍ3のアスファルト配合架橋発泡ポリエチレンシートを得た。
Example 2
40 parts of low density polyethylene and 40 parts of high density polyethylene, 20 parts of granular asphalt, 6.2 parts of foaming agent (azodicarbonamide), 0.9 part of crosslinking agent (dicumyl peroxide), crosslinking aid (trimethylol) (Propane trimethacrylate) 0.5 part was mixed, kneaded with an open roll at 120 ° C., and molded into a 5 mm plate shape.
This plate-shaped molded article was foamed by being held in a hot air circulation type foaming furnace at 220 ° C. to obtain an asphalt-blended cross-linked foamed polyethylene sheet having a thickness of 10 mm and a density of 72 kg / m 3 .
実施例３
低密度ポリエチレン３０部と高密度ポリエチレン３０部と顆粒状のアスファルト１５部と粒径１ｍｍ以下のノコクズ１５部および発泡剤（アゾジカルボンアミド）６．２部と架橋剤（ジクミルパーオキサイド）０．９部、架橋助剤（トリメチロールプロパントリメタクリレート）０．５部を混合し、１２０℃のオープンロールにて練り合わせ、５ｍｍの板状に成型した。
この板状成型品を２２０℃の熱風循環式発泡炉中に保持することにより発泡させ、厚さ１０ｍｍ、密度７２ｋｇ/ｍ3の発泡ポリエチレンシートを得た。
Example 3
30 parts of low-density polyethylene, 30 parts of high-density polyethylene, 15 parts of granular asphalt, 15 parts of sawdust with a particle size of 1 mm or less, 6.2 parts of foaming agent (azodicarbonamide) and cross-linking agent (dicumyl peroxide) 9 parts and 0.5 part of a crosslinking aid (trimethylolpropane trimethacrylate) were mixed and kneaded with an open roll at 120 ° C. to form a 5 mm plate.
The plate-like molded product was foamed by being held in a hot air circulation type foaming furnace at 220 ° C. to obtain a foamed polyethylene sheet having a thickness of 10 mm and a density of 72 kg / m 3 .
比較例１
低密度ポリエチレン６０部と高密度ポリエチレン４０部に発泡剤（アゾジカルボンアミド）６．２部と架橋剤（ジクミルパーオキサイド）０．９部、架橋助剤（トリメチロールプロパントリメタクリレート）０．５部を混合し、１２０℃のオープンロールにて練り合わせ、５ｍｍの板状に成型した。
この板状成型品を２２０℃の熱風循環式発泡炉中に保持することにより発泡させ、厚さ１０ｍｍ、密度７４ｋｇ/ｍ3の架橋発泡ポリエチレンシートを得た。
Comparative Example 1
60 parts of low-density polyethylene and 40 parts of high-density polyethylene, 6.2 parts of foaming agent (azodicarbonamide), 0.9 part of crosslinking agent (dicumyl peroxide), 0.5 part of crosslinking aid (trimethylolpropane trimethacrylate) The parts were mixed and kneaded with an open roll at 120 ° C. to form a 5 mm plate.
This plate-shaped molded product was foamed by being held in a hot air circulation type foaming furnace at 220 ° C. to obtain a crosslinked foamed polyethylene sheet having a thickness of 10 mm and a density of 74 kg / m 3 .
比較例２
瀝青質系目地板（商品名 エラスタイト、アオイ化学社製）を用いた。この目地板は厚さ１０ｍｍ、密度１１７０ｋｇ／ｍ3であった。
Comparative Example 2
A bituminous joint plate (trade name: Elastite, manufactured by Aoi Chemical Co., Ltd.) was used. The joint plate had a thickness of 10 mm and a density of 1170 kg / m 3 .
これらの実施例並びに比較例によって得られた本発明の目地板をコンクリート構造物用目地板の標準試験方法の規格である米国ＡＳＴＭ−Ｄ５４４規格ならびに国土交通省の樹脂発泡体目地板の規格により性能試験を行った。また、実施例１、実施例２、実施例３並びに比較例１、比較例２についてこれらの試験の結果を表１に示した。ちなみに比較例１は通常に使用されている樹脂発泡目地板の標準的なものに該当するものである。又、比較例２は石油アスファルトを主体とする目地板の例である。 Performance of the joint plate of the present invention obtained in these Examples and Comparative Examples in accordance with the standard ASTM-D544 standard for the standard test method for joint plates for concrete structures and the resin foam joint plate standard of the Ministry of Land, Infrastructure, Transport and Tourism. A test was conducted. In addition, Table 1 shows the results of these tests for Example 1, Example 2, Example 3, Comparative Example 1, and Comparative Example 2. Incidentally, Comparative Example 1 corresponds to a standard resin foam joint board that is normally used. Comparative Example 2 is an example of a joint plate mainly composed of petroleum asphalt.
表２の結果から本発明品の特性は比較例１と同等である。また、ノコクズを添加することで１／２圧縮強度及び硬度の向上が可能である。
本発明の目地板は従来の樹脂発泡体目地板とほぼ匹敵する性状を有するが、アスファルトという安価材料を含むことで経済性にも優れる。また従来の瀝青質系目地板にはノコクズを添加されることが多いが本発明品にもノコクズを添加することができ、このノコクズも廃棄物の一種であることから資源のリサイクル活用も可能である。
また本発明の目地板は、これまでの瀝青質系目地板のイメージを大きく変えるものである。本発明品は極めて弾力性に富み、そのために圧縮されたときの復元率も高く、圧縮された時のはみ出しも極めて少ない。これらの結果は、比較例２の瀝青質系目地板と比較すると歴然である。
なお、このように作られたアスファルト含有の樹脂発泡体シートを巻物状に連続成型して、スリッター（一定間隔に設けた上下の円形刃物の間を通してシートを短冊状に切断する機械）を通して目地テープを製造することができる。発泡倍率を変えることで緩衝用、止水用、バックアップ材用など各種の樹脂発泡体テープが製造可能である。また、アスファルトを含有することにより、通常の樹脂発泡体より接地面に馴染みやすく、経済的な樹脂発泡体テープを得ることができる。
なお、本発明は目地板の他にアスファルト含有の樹脂発泡シートとして、緩衝用、梱包用、断熱用等のシート、屋根材、保温材として用いるシートにも応用できる。
From the results of Table 2, the characteristics of the product of the present invention are equivalent to those of Comparative Example 1. Moreover, the 1/2 compressive strength and hardness can be improved by adding sawdust.
The joint board of the present invention has properties almost comparable to those of conventional resin foam joint boards, but is excellent in economic efficiency by including an inexpensive material called asphalt. In addition, sawdust is often added to conventional bituminous joint plates, but sawdust can also be added to the product of the present invention, and since this sawdust is a kind of waste, recycling of resources is also possible. is there.
Moreover, the joint board of this invention changes the image of the bituminous system joint board until now greatly. The product of the present invention is extremely elastic, so that the restoration rate is high when compressed, and the protrusion when compressed is very small. These results are evident when compared with the bituminous joint plate of Comparative Example 2.
The asphalt-containing resin foam sheet made in this way is continuously molded into a scroll shape, and then jointed with a slitter (a machine that cuts the sheet into a strip shape between upper and lower circular cutters provided at regular intervals). Can be manufactured. By changing the expansion ratio, various resin foam tapes such as a buffer, a water stop, and a backup material can be manufactured. Further, by containing asphalt, an economical resin foam tape can be obtained which is more easily adapted to the ground contact surface than a normal resin foam.
In addition to the joint plate, the present invention can also be applied to asphalt-containing resin foam sheets, cushioning sheets, packing sheets, heat insulating sheets, roofing materials, and sheets used as heat insulating materials.
以上により、本発明は次のような効果を有し、種々の分野に利用できる。
１．これまで含有されたことがないアスファルトを樹脂発泡体目地板に含有させることで、従来から用いられている瀝青質系目地板の性能を著しく改良した瀝青質系目地板を得ることができる。
２．アスファルトを含有させることで経済的な樹脂発泡体目地板を製造することができる。また、瀝青質系目地板に混合されていたノコクズを含有させて製造することもでき、廃棄物のリサイクル活用にも役立てることができる。
３．本発明の目地板は樹脂発泡体目地板としての性能を維持または向上している。
４．本発明のアスファルト含有樹脂発泡体のシートを連続成型して短冊状のテープとし
て用いることができる。
５．本発明は目地板の他にアスファルト含有の樹脂発泡シートとして、緩衝用、梱包用、断熱用等のシート、屋根材、保温材として用いるシートにも応用できる。
As described above, the present invention has the following effects and can be used in various fields.
1. By containing asphalt that has never been contained in the resin foam joint board, a bituminous joint board in which the performance of a conventionally used bituminous joint board is remarkably improved can be obtained.
2. By containing asphalt, an economical resin foam joint board can be produced. In addition, sawdust mixed with bituminous joint plate can be included, which can be used for recycling waste.
3. The joint plate of the present invention maintains or improves the performance as a resin foam joint plate.
4). The asphalt-containing resin foam sheet of the present invention can be continuously molded and used as a strip-like tape.
5). The present invention can be applied to asphalt-containing resin foam sheets in addition to joint plates, sheets for cushioning, packing, heat insulation, etc., roofing materials, and sheets used as heat insulating materials.
Claims (8)
A joint plate and joint tape comprising the foam sheet according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004153712A JP4560774B2 (en) | 2004-05-24 | 2004-05-24 | Joint plate and joint tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004153712A JP4560774B2 (en) | 2004-05-24 | 2004-05-24 | Joint plate and joint tape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005336239A true JP2005336239A (en) | 2005-12-08 |
| JP4560774B2 JP4560774B2 (en) | 2010-10-13 |
Family
ID=35490155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004153712A Expired - Fee Related JP4560774B2 (en) | 2004-05-24 | 2004-05-24 | Joint plate and joint tape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4560774B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022019225A (en) * | 2020-07-17 | 2022-01-27 | ヒートロック工業株式会社 | Functional expandable material provided in expansion joint gap of structure |
-
2004
- 2004-05-24 JP JP2004153712A patent/JP4560774B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022019225A (en) * | 2020-07-17 | 2022-01-27 | ヒートロック工業株式会社 | Functional expandable material provided in expansion joint gap of structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4560774B2 (en) | 2010-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100791587B1 (en) | Asphalt waterproof composition for building and manufacturing method thereof | |
| PL209990B1 (en) | Aqueous adhesive system, method for the production and use thereof | |
| KR101546506B1 (en) | Recycled Cold Asphalt Concrete Mixture | |
| JP2022538945A (en) | Soundproofing material and its manufacturing method | |
| JP4560774B2 (en) | Joint plate and joint tape | |
| HU213905B (en) | Process for producing light concrete aggregates, light concrete, carrige way surfacing, masonry units, heat-insulating and/or levelling layer | |
| JP6457725B2 (en) | Resin sash fireproof structure | |
| KR200435848Y1 (en) | Waterproof sheet and laminate comprising the same for structural materials | |
| KR20210055367A (en) | Preamble sidewalk and driveway block system combining waste plastic block and cement block | |
| PL233756B1 (en) | A mixture for the production of vibro-insulating materials for the protection of rail and wheel roads | |
| KR102421306B1 (en) | Aspalt seal-waterproofing material and water-proofing method | |
| KR102250270B1 (en) | Composition of the watertight asphalt paving overlay for bridges and concrete roadways | |
| KR20160122492A (en) | Asphalt Mixture Using Calcium Carbonate Byproducts | |
| JPH02236334A (en) | Water stop material and manufacture thereof | |
| JP6813651B2 (en) | Bituminous joint material for concrete structures and its manufacturing method | |
| CA1221389A (en) | Manufacturing method of portland cement | |
| KR101256857B1 (en) | Rubber complex waterproof sheet using recycle polypropylene | |
| KHAMPUT et al. | Using of para-rubber to develop properties of concrete block mixed with ethylene vinyl acetate plastic in masonry | |
| US20230144278A1 (en) | Polyethylene terephthalate (pet) particulate composition for structural construction components | |
| CN109111683A (en) | A kind of composite foam material | |
| AU623159B2 (en) | Composition for the preparation of an agglomerate made up of basic components together with a plastic-based binder, its processing and the products obtained | |
| KR20190035576A (en) | Thermosetting foam and method of producing the same | |
| KR960010559B1 (en) | Waterproofing sheet made from polyurethane | |
| KR102570964B1 (en) | Asphalt modifier composition, asphalt concrete composition including the same and construction method using the same | |
| KR102146195B1 (en) | The recycling asphalt mixture for reforming |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20060619 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060621 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060821 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20070228 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20070427 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20070912 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20071112 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20071113 |
|
| A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20080108 |
|
| A912 | Re-examination (zenchi) completed and case transferred to appeal board |
Free format text: JAPANESE INTERMEDIATE CODE: A912 Effective date: 20080229 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20100715 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130806 Year of fee payment: 3 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 4560774 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |