JP2015113560A - Method and material for repairing repair part in water - Google Patents
Method and material for repairing repair part in water Download PDFInfo
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Abstract
Description
本発明は、淡水・海水を問わず、貯水池、廃棄物最終処理池等の内壁に生じた破損等の補修の必要のある箇所を水中において修復する方法及び水中で使用される修復材に関する。 The present invention relates to a method for repairing a portion of the inner wall of a reservoir, a waste final treatment pond, or the like that needs repair such as fresh water or seawater in water, and a repair material used in water.
従来、貯水池や廃棄物最終処理池等の内壁に生じた破損に対して修復をする方法が、例えば、特許文献１や特許文献２に開示されている。
特許文献１では、破損箇所から高密度ベントナイトマットを挿入し、他の高密度ベントナイトマットにより、破損箇所を挟んで接合させることが開示されているが極めて作業効率が悪いという問題がある。
また、特許文献２には、熱可塑性樹脂遮水シートの補修箇所に、水中で接合剤を塗布して、その上に他の熱可塑性樹脂遮水シートを積層した後、圧着して接合剤を硬化させることが開示されている。
しかしながら、水中における接合剤の塗布は極めて作業性が悪いという問題があった。また、特許文献２記載の発明は、補修部位が熱可塑性樹脂である場合にのみ限られており、適用できる補修箇所や貯水池等の種類が限定されて汎用性がないという問題があった。更にまた、補修部位が熱可塑性樹脂に限定されているにもかかわらず、接着強度が十分ではないことが実験的に判明した。
Conventionally, for example, Patent Literature 1 and Patent Literature 2 disclose a method for repairing damage caused on an inner wall of a reservoir or a waste final treatment pond.
In Patent Document 1, it is disclosed that a high density bentonite mat is inserted from a damaged part, and the damaged part is sandwiched and joined by another high density bentonite mat, but there is a problem that work efficiency is extremely poor.
Further, in Patent Document 2, a bonding agent is applied in water to a repaired portion of a thermoplastic resin impermeable sheet, and another thermoplastic resin impermeable sheet is laminated thereon, followed by pressure bonding. Curing is disclosed.
However, the application of the bonding agent in water has a problem that workability is extremely poor. Further, the invention described in Patent Document 2 is limited only when the repair site is a thermoplastic resin, and there is a problem in that the types of repair sites and reservoirs that can be applied are limited and there is no versatility. Furthermore, it has been experimentally found that the adhesive strength is not sufficient even though the repair site is limited to the thermoplastic resin.
そこで、本願発明は、極めて施工性に優れ、補修部位の幅広い材質に対応することができ、しかも、接着強度が十分な水中における補修箇所の修復方法及び水中における補修箇所の修復材を提供することを目的とする。 Therefore, the present invention provides a method for repairing a repaired part in water and a repairing material in a repaired part in water, which are extremely excellent in workability, can handle a wide range of materials in the repaired part, and have sufficient adhesive strength. With the goal.
本発明の水中における補修箇所の修復方法は、請求項１に記載の通り、加硫した合成ゴム又は合成樹脂から構成された保護シートを、針入度４０〜６０の未加硫のブチルゴムを主材とする合成ゴムシートを介して水中で押圧して水中の補修すべき箇所に付着させることを特徴とする。
請求項２記載の補修箇所の修復方法は、請求項１において、前記合成ゴムシートは、厚さ０．８ｍｍ以上とし、前記保護シートは、加硫した合成ゴムシート、複合シート、又は、透明若しくは半透明のＣＰＰ、ＰＥＴ若しくはＰＰから構成される合成樹脂シートであることを特徴とする。
請求項３記載の補修箇所の修復方法は、請求項１又は２において、前記押圧時の荷重は０．０１２ｋｇ／ｃｍ２以上であり、前記荷重は１６時間以上継続して加えることを特徴とする。
請求項４記載の補修箇所の修復方法は、請求項１乃至３の何れか１項に記載の発明において、前記補修箇所は、ゴムを主材として構成されていることを特徴とする。
また、本発明の水中における補修箇所の修復材は、請求項５記載の通り、針入度４０〜６０の未加硫のブチルゴムを主材とする合成ゴムシートに、加硫した合成ゴム又は合成樹脂から構成された保護シートを積層したことを特徴とする。
請求項６記載の水中における補修箇所の修復材は、請求項５において、前記合成ゴムシートは、厚さ０．８ｍｍ以上とし、前記保護シートは、加硫した合成ゴムシート、複合シート、又は、透明若しくは半透明のＣＰＰ、ＰＥＴ若しくはＰＰから構成される合成樹脂シートであることを特徴とする。
The method for repairing a repaired part in water according to the present invention, as described in claim 1, mainly uses a vulcanized synthetic rubber or a protective sheet composed of a synthetic resin, an unvulcanized butyl rubber having a penetration of 40 to 60. It presses in water through the synthetic rubber sheet | seat used as a material, and adheres to the location which should be repaired in water.
The method for repairing a repair site according to claim 2 is the method according to claim 1, wherein the synthetic rubber sheet has a thickness of 0.8 mm or more, and the protective sheet is a vulcanized synthetic rubber sheet, a composite sheet, or transparent or It is a synthetic resin sheet composed of translucent CPP, PET, or PP.
The method for repairing a repair site according to claim 3 is characterized in that, in claim 1 or 2, the load during pressing is 0.012 kg / cm 2 or more, and the load is continuously applied for 16 hours or more. .
According to a fourth aspect of the present invention, there is provided a repair location repairing method according to any one of the first to third aspects, wherein the repair location is composed mainly of rubber.
Moreover, the restoration material of the repair location in the water of this invention is the synthetic rubber or synthetic | combination which vulcanized to the synthetic rubber sheet | seat which has a penetration of 40-60 as a main material as described in Claim 5. It is characterized by laminating protective sheets made of resin.
The restoration material for repaired sites in water according to claim 6, wherein the synthetic rubber sheet has a thickness of 0.8 mm or more, and the protective sheet is a vulcanized synthetic rubber sheet, a composite sheet, or It is a synthetic resin sheet composed of transparent or translucent CPP, PET or PP.
本発明によれば、水中において、貯水池等の破損等が生じた修復箇所を極めて効率良く修復することができる。また、修復箇所は、ゴム、樹脂、コンクリート等をはじめとして広い範囲で適用できる。また、本発明によれば、修復箇所を高い強度で補修することができる。 ADVANTAGE OF THE INVENTION According to this invention, the repair location which the damage of a reservoir etc. produced in water can be repaired very efficiently. Further, the repaired part can be applied in a wide range including rubber, resin, concrete and the like. Moreover, according to this invention, a repair location can be repaired with high intensity | strength.
本発明の水中における補修箇所の修復方法は、貯水池、廃棄物処分場等を始め貯水可能な構造物において、淡水・海水等を貯水した状態で、その構造物の内壁や底面に生じた孔や亀裂等の破損を修復することを可能とするものである。 The repair method for repaired parts in water according to the present invention is a structure capable of storing water, such as a reservoir, a waste disposal site, etc., in a state where fresh water, seawater, etc. are stored, It is possible to repair breakage such as cracks.
針入度４０〜６０のブチルゴムを主材とする未加硫の合成ゴムシートは、水中の補修すべき箇所に、加硫した合成ゴム又は合成樹脂の保護シートを介して水中で押圧して付着させる。
未加硫の合成ゴムシートは、修復箇所となる亀裂や孔とその周辺とを含む領域に付着させることができ、修復箇所を防水できる程度の粘度、粘着性及び弾性等の物性を有しているものであれば特に制限はない。
この合成ゴムシートを構成するブチルゴムの配合の一例を挙げると、ＩＩＲ２１〜２８重量％、カーボン１９〜２３重量％等とすることができる。
合成ゴムシートの空気中で加圧されていない状態の厚さは、厚さ０．８ｍｍ以上とすることが好ましい。０．８ｍｍ未満であると、被着部位の細かな凹凸を吸収できないからである。尚、合成ゴムシートの厚さは、２．４ｍｍを超えると止水として機能しない無駄な部分が生じるため、コストを考慮すれば２．４ｍｍ以下とすることが好ましい。
An unvulcanized synthetic rubber sheet mainly composed of butyl rubber with a penetration of 40 to 60 adheres to the location to be repaired in water by pressing it in water via a vulcanized synthetic rubber or synthetic resin protective sheet. Let
The unvulcanized synthetic rubber sheet has physical properties such as viscosity, adhesiveness, and elasticity that can be attached to the area including cracks and holes to be repaired and the periphery thereof, and can waterproof the repaired part. There is no particular limitation as long as it is.
An example of the blend of butyl rubber constituting this synthetic rubber sheet is IIR 21 to 28% by weight, carbon 19 to 23% by weight, and the like.
The thickness of the synthetic rubber sheet that is not pressurized in air is preferably 0.8 mm or more. This is because if the thickness is less than 0.8 mm, fine unevenness of the deposition site cannot be absorbed. In addition, since the useless part which does not function as a water stop will arise if the thickness of a synthetic rubber sheet exceeds 2.4 mm, it is preferable to set it as 2.4 mm or less considering cost.
保護シートは、加硫した合成ゴムシート、複合シート、透明若しくは半透明のＣＰＰ、ＰＥＴ若しくはＰＰから構成される合成樹脂シートの他に、アルミニウム箔等の金属箔又は紙等を使用することができ、貼り付け時に被着部位の凹凸を吸収、或いは、被着部位の形状に沿うようにして変形できる程度の可撓性を有する。
前記加硫した合成ゴムシートは、弾性を備えたものであればよく、例えば、ＥＰＤＭ及びＩＩＲの合成ゴム材料に、カーボン、加硫剤、プロセスオイル等を添加して得たものを使用することができる。また、複合シートは、JISA6008に記載の基布その他を積層した複合ルーフィングシートのことをいうものとする。尚、ＥＰＤＭが主材の合成ゴム材料の場合には、ＩＩＲを添加することが好ましい。成形後の外観が良好となり、軟化剤のブリード（吐出）の少ない長期に亘って弾性を確保することができるからである。
また、前記合成樹脂シートは、破断強度２０〜５０Ｎ程度の樹脂シートが望ましく、キャスティングポリプロピレン、ポリエチレン、オリエンテッドポリプロピレン、ポリエチレンテレフタレート等の樹脂を使用することができる。尚、この樹脂シートを透明乃至は半透明のものを使用すれば、施工部位が上側から透かしてみることができるので、施工上好ましい。
As the protective sheet, vulcanized synthetic rubber sheet, composite sheet, transparent or translucent CPP, synthetic resin sheet composed of PET or PP, metal foil such as aluminum foil or paper can be used. It is flexible enough to absorb the unevenness of the adherent part at the time of pasting or to deform along the shape of the adherent part.
The vulcanized synthetic rubber sheet only needs to have elasticity. For example, a synthetic rubber material obtained by adding carbon, a vulcanizing agent, process oil or the like to a synthetic rubber material of EPDM and IIR should be used. Can do. The composite sheet refers to a composite roofing sheet in which a base fabric or the like described in JISA6008 is laminated. When EPDM is a main synthetic rubber material, it is preferable to add IIR. This is because the appearance after molding becomes good and the elasticity can be secured over a long period of time with less bleed (discharge) of the softening agent.
The synthetic resin sheet is preferably a resin sheet having a breaking strength of about 20 to 50 N, and resins such as casting polypropylene, polyethylene, oriented polypropylene, and polyethylene terephthalate can be used. In addition, if this resin sheet is transparent or translucent, the construction site can be seen through from above, which is preferable in terms of construction.
本発明の修復方法及び修復材において、保護シートと未加硫の合成ゴムシートとは、接合されるが、接合する場所は、水中でなくても空気中において予め接合しておいて、水中で被着部位に付着させるようにしてもよい。 In the restoration method and restoration material according to the present invention, the protective sheet and the unvulcanized synthetic rubber sheet are joined together. You may make it adhere to a deposition part.
補修すべき箇所についても、例えば、ゴムや合成樹脂等の特に制限はない。尚、未加硫の合成ゴムシートの被着部位がゴムを主材としたものである場合には、修復材の接合剤の合成ゴムシートに含まれる可塑剤が被着部位側に移行して接合の度合いがより高められるため、被着部位はゴムを主材に構成されていることが好ましい。 There are no particular restrictions on the parts to be repaired, such as rubber or synthetic resin. In addition, when the adhesion part of the unvulcanized synthetic rubber sheet is mainly made of rubber, the plasticizer contained in the synthetic rubber sheet of the bonding agent of the restoration material moves to the adhesion part side. In order to further increase the degree of bonding, it is preferable that the deposition site is composed mainly of rubber.
本発明において、未加硫の合成ゴムシートと被着部位との間の水は、押圧により除去されて、水中で未加硫の合成ゴムシートの一部が被着部位に付着し、その後に、継続して押圧（錘等によって荷重をかける）するか、或いは、水圧がかかることにより、被着部位と未加硫の合成ゴムシートとの間の水が徐々に排出されて、これらの付着面積が増えることになるので、荷重の大きさは０．０１２ｋｇ／ｃｍ２以上とすることが好ましく、また、荷重継続時間も１６時間以上とすることが好ましい。荷重が０．０１２ｋｇ／ｃｍ２未満であると、付着に時間がかかり過ぎるためである。また、荷重をかける時間が１６時間よりも短いと未加硫の合成ゴムシートと被着部位との間に存在している水の除去が不十分となり未加硫の合成ゴムシートと被着部位との接合が安定しないからである。
尚、上記した荷重を錘によって加える場合には、複数の箇所に防水施工を施した後に、それらの錘を取り除く作業は非常に手間がかかるので、錘を載せたままにすることが好ましい。
In the present invention, the water between the unvulcanized synthetic rubber sheet and the application site is removed by pressing, and a part of the unvulcanized synthetic rubber sheet adheres to the application site in the water. , Either by continuously pressing (loading with a weight or the like) or by applying water pressure, the water between the deposition site and the unvulcanized synthetic rubber sheet is gradually discharged, and these adhere Since the area increases, the magnitude of the load is preferably 0.012 kg / cm 2 or more, and the load duration is preferably 16 hours or more. This is because if the load is less than 0.012 kg / cm 2 , it takes too much time for adhesion. Moreover, if the time for applying the load is shorter than 16 hours, the removal of water existing between the unvulcanized synthetic rubber sheet and the deposition site becomes insufficient, and the unvulcanized synthetic rubber sheet and the deposition site. This is because the bonding with the is not stable.
In addition, when applying the above-mentioned load with a weight, since the work which removes those weights after performing waterproofing construction to a plurality of places takes time very much, it is preferred to leave the weight on.
また、本発明の水中における補修箇所の修復材は、上記説明した未加硫の合成ゴムシートに、同じく上記説明した加硫した合成ゴム又は樹脂の保護シートを積層したものである。 The restoration material for repaired parts in water of the present invention is obtained by laminating the above-described unvulcanized synthetic rubber sheet and the above-described vulcanized synthetic rubber or resin protective sheet.
以下に示す配合の未加硫のブチルゴムを用意して試験をした。
Ａ．配合例
・配合１（アサヒゴム社製、型番：４０Ｔ）
ＩＩＲ１００質量部、カーボン１００質量部、充填材として炭酸カルシウム１８７．５質量部、粘着材として合成樹脂（Ｃ５系のタッキファイヤー）２２．５質量部、軟化剤としてポリブテン（日石社製 「ＨＶ−１００」）５０質量部を配合して、針入度４０として、未加硫のブチルゴムテープの配合。
・配合２（アサヒゴム社製、型番：６０Ｔ）
ＩＩＲ１００質量部、カーボン１００質量部、充填材１８７．５質量部、粘着材として合成樹脂２２．５質量部、軟化剤６０質量部を配合して、針入度６０として、未加硫のブチルゴムを主材とする合成ゴム配合。
・配合３（アサヒゴム社製、型番：８０Ｔ）
ＩＩＲ１００質量部、カーボン１００質量部、充填材１８７．５質量部、粘着材として合成樹脂２２．５質量部、軟化剤８０質量部を配合して、針入度８０として、未加硫のブチルゴムを主材とする合成ゴム配合。
An unvulcanized butyl rubber having the following composition was prepared and tested.
A. Formulation Example-Formulation 1 (Asahi Rubber Co., Model No .: 40T)
IIR 100 parts by mass, carbon 100 parts by mass, calcium carbonate 187.5 parts by mass as a filler, synthetic resin (C5-based tackifier) 22.5 parts by mass as an adhesive, polybutene (manufactured by Nisseki Co., Ltd. “HV- 100 ") 50 parts by mass, blending with an unvulcanized butyl rubber tape with a penetration of 40.
・ Composition 2 (Asahi Rubber Co., Model No .: 60T)
IIR 100 parts by mass, carbon 100 parts by mass, filler 187.5 parts by mass, synthetic resin 22.5 parts by mass and softening agent 60 parts by mass, with a penetration of 60, unvulcanized butyl rubber Synthetic rubber compound as main material.
・ Composition 3 (Asahi Rubber Co., Model No .: 80T)
IIR 100 parts by mass, carbon 100 parts by mass, filler 187.5 parts by mass, synthetic resin 22.5 parts by mass as an adhesive, and softener 80 parts by mass, with a penetration of 80, unvulcanized butyl rubber Synthetic rubber compound as main material.
Ｂ．以下の比較試験を行った。
［試験１：引張試験］
ＥＰＤＭゴム間に補強用繊維を埋め込んで加硫した後に８０ｍｍ×１００ｍｍ×１．５ｍｍに成形したゴム製ルーフィングシート（バンドー化学社製 繊維補強シート）を２枚用意して、下側のゴム製ルーフィングシートを被着部位とし、上側のゴム製ルーフィングシートを保護シートと想定した。これらが８０ｍｍ×２５ｍｍの領域で重ねるようにして、その間に水中において、上記配合１〜３で構成された未加硫のブチルゴムを主材とする合成ゴムシートを挟みこみ、重ね合わされたシートの上から荷重を加えた後、大気中に取り出して、粘着されていたゴム製ルーフィングシート同士を剥離して被着部位側となるゴム製ルーフィングシート側に残存していた未加硫のブチルゴムを主材とする合成ゴムシートの残存面積を測定した。
水中では錘を使用して荷重を加えるようにした。本実施例では３００ｇと６００ｇの錘を使用し、シートが重複する領域の単位面積当たりの荷重は表１に示す通り、０．０１２ｋｇ／ｃｍ２及び０．０２４ｋｇ／ｃｍ２とした。また、荷重を加える時間は１６時間〜７２時間とした。
実施例４についてのみ、被着部位及び保護シートとして、ＩＩＲ４．５重量部、ＥＰＤＭ３４．５重量部、カーボン２２重量部、充填材として炭酸カルシウム２１重量部、軟化剤としてオイル（出光興産社製 「ＰＳ−１８０」）、並びに、加硫剤、加硫促進剤等７重量部から構成したＥＰＤＭゴムを加硫した後に、８０ｍｍ×１００ｍｍ×１．５ｍｍに成形したゴムシートを２枚使用した。また、ブチルゴムを主材とする未加硫の合成ゴムシートは、表１に示す通り、配合１の合成ゴム配合を使用し、その厚さを１．６ｍｍとした。
水温は、表１に示す通り５℃、２５℃、４０℃で行った。
尚、表１中、「荷重をかけて放置した時間（時間）後の密着割合（％）」とは、上記説明した通り、単位面積当たりの荷重「０．０１２ｋｇ／ｃｍ２及び０．０２４ｋｇ／ｃｍ２」を、所定時間（「１６、２４、４８及び７２（時間）」）加えた場合の上記重複した領域（２５ｍｍ×２５ｍｍ）に残存していた未加硫のブチルゴムを主材とする合成ゴムシートの残存面積を百分率で表示したものである。
また、表１中「−」は測定していないことを示す。
B. The following comparative tests were conducted.
[Test 1: Tensile test]
Two rubber roofing sheets (Bandow Chemical Fiber Reinforcement Sheet) are prepared by embedding reinforcing fibers between EPDM rubbers and vulcanizing them, and then molding them into 80 mm x 100 mm x 1.5 mm. It was assumed that the sheet was the part to be deposited and the upper rubber roofing sheet was the protective sheet. As these are stacked in an area of 80 mm × 25 mm, a synthetic rubber sheet mainly composed of the unvulcanized butyl rubber composed of the above-mentioned blends 1 to 3 is sandwiched in water between them, and the top of the stacked sheets The main material is unvulcanized butyl rubber that was removed from the rubber roofing sheets that had been adhered to each other and left on the rubber roofing sheet side, which is the adherend site side. The remaining area of the synthetic rubber sheet was measured.
Underwater, a load was applied using a weight. Use the weight of 300g and 600g in the present embodiment, the sheet is the load per unit area of the overlapping region was as, 0.012 kg / cm 2 and 0.024 kg / cm 2 shown in Table 1. The time for applying the load was 16 hours to 72 hours.
For Example 4 only, the deposition site and protective sheet were 4.5 parts by weight of IIR, 34.5 parts by weight of EPDM, 22 parts by weight of carbon, 21 parts by weight of calcium carbonate as a filler, and oil as a softener (made by Idemitsu Kosan Co., Ltd. PS-180 "), and an EPDM rubber composed of 7 parts by weight of a vulcanizing agent, a vulcanization accelerator and the like were vulcanized, and two rubber sheets molded into 80 mm x 100 mm x 1.5 mm were used. Further, as shown in Table 1, the unvulcanized synthetic rubber sheet containing butyl rubber as the main material used the synthetic rubber composition of Compound 1 and had a thickness of 1.6 mm.
As shown in Table 1, the water temperature was 5 ° C., 25 ° C., and 40 ° C.
In Table 1, the “adhesion ratio (%) after standing time (hours) under load” refers to the loads “0.012 kg / cm 2 and 0.024 kg / per unit area” as described above. cm 2 ”for a predetermined period of time (“ 16, 24, 48 and 72 (hours) ”), a synthesis mainly composed of unvulcanized butyl rubber remaining in the overlapping region (25 mm × 25 mm). The remaining area of the rubber sheet is displayed as a percentage.
In Table 1, “-” indicates that measurement was not performed.
Ｃ．表１について
（１）実施例１〜６について
針入度４０〜６０の未加硫の合成ゴムシートは、水中において、加硫した合成ゴムシートから構成された保護シート（ゴム製ルーフィングシート）を介して、被着部位（本実施例の場合は、ゴム製ルーフィングシート）に、水温が低温（５℃）〜高温（４０℃）の間で付着できていることがわかった。また、未加硫の合成ゴムシートは最低でも０．８ｍｍあれば、被着部位に問題なく付着させることができることがわかった。
（２）針入度４０の実施例１〜４について
低温（５℃）の場合には、実施例１で付着までにかかる時間が最低でも４８時間であることから、荷重を加える時間を長くする必要がわかった。また、常温（２５℃）の場合には、荷重を０．０２４ｋｇ／ｃｍ２以上とすれば、２４時間で被着部位に付着（実施例２では１０％、実施例４では４０％）することがわかった。
実施例２及び４は、被着部位のゴムの組成が異なるものであるが、実施例４の方が実施例２に比べて付着していることから、被着部位のゴムの組成と、未加硫の合成ゴムシートの組成とが近い方が付着し易いことがわかった。
実施例２の荷重０．０１２ｋｇ／ｃｍ２時の結果と、荷重０．０２４ｋｇ／ｃｍ２時の結果とを比べると、荷重が０．０２４ｋｇ／ｃｍ２の場合には、最低で２４時間で付着することがわかった。
（３）針入度６０の実施例５及び実施例６について
実施例５は低温（５℃）あっても、同じ低温の実施例１に比べて付着面積が広いことがわかった。実施例６は、高温（４０℃）の場合であるが、荷重０．０１２ｋｇ／ｃｍ２及び０．０２４ｋｇ／ｃｍ２のいずれも、１６時間で付着面積が、それぞれ、４０％及び５０％であることから、短時間で被着部位に付着することがわかった。
（４）比較例１〜３について
比較例３の密着割合は、実施例１〜６に対して優れているものが多かったが、次の引張試験で示す通り防水機能を果たさないことがわかった。
C. About Table 1 (1) About Examples 1 to 6 An unvulcanized synthetic rubber sheet having a penetration of 40 to 60 is a protective sheet (rubber roofing sheet) composed of a vulcanized synthetic rubber sheet in water. Thus, it was found that the water temperature was adhered between the low temperature (5 ° C.) and the high temperature (40 ° C.) on the deposition site (in the case of this example, a rubber roofing sheet). Further, it was found that the unvulcanized synthetic rubber sheet can be attached to the deposition site without problems if it is at least 0.8 mm.
(2) About Examples 1 to 4 with a penetration of 40 In the case of low temperature (5 ° C.), the time required for adhesion in Example 1 is at least 48 hours, so the time for applying the load is lengthened. I found it necessary. In addition, at normal temperature (25 ° C.), if the load is 0.024 kg / cm 2 or more, it adheres to the deposition site in 24 hours (10% in Example 2, 40% in Example 4). I understood.
In Examples 2 and 4, the composition of the rubber at the deposition site is different. However, since Example 4 is adhered as compared to Example 2, the composition of the rubber at the deposition site and It was found that the closer the composition of the vulcanized synthetic rubber sheet is, the easier it is to adhere.
Comparing the results of Example 2 with a load of 0.012 kg / cm 2 and the results with a load of 0.024 kg / cm 2, when the load is 0.024 kg / cm 2 , the adhesion occurs at least for 24 hours. I found out that
(3) About Example 5 and Example 6 with a penetration of 60 Even though Example 5 had a low temperature (5 ° C.), it was found that the adhesion area was wider than Example 1 at the same low temperature. Example 6 is a case of high temperature (40 ° C.), but the adhesion area is 40% and 50% in 16 hours for both loads 0.012 kg / cm 2 and 0.024 kg / cm 2 , respectively. From this, it was found that it adheres to the deposition site in a short time.
(4) About Comparative Examples 1-3 Although the adhesion ratio of Comparative Example 3 was superior to Examples 1-6, it was found that the waterproof function was not achieved as shown in the next tensile test. .
［試験２：剥離試験］
被着部位及び保護シートとして、ＥＰＤＭゴム間に補強用繊維を埋め込んで加硫した後に１００ｍｍ×８０ｍｍ×１．５ｍｍに成形したゴム製ルーフィングシート（バンドー化学社製 繊維補強シート）を２枚用意して、それぞれのシートの一辺が２５ｍｍの幅で重なるようにし、シート間の重複した領域（８０ｍｍ×２５ｍｍ）に、２５〜２７℃の水中で、上記配合１〜３の未加硫の合成ゴムシートを挟み荷重を２４時間加えた後に、大気中に取り出してから３０分経過後に、幅１０ｍｍ、長さ１１５ｍｍの試験片を切り出し重複した領域に剪断力がかかるように２枚のルーフィングシートを互いに離れる方向に引っ張ることにより、接着強度及び接着が破断した状態を目視にて確認し、凝集破壊している場合には、重複した領域（１０ｍｍ×２５ｍｍ）における凝集破壊領域を測定して百分率で表示した。その結果を表２に示す。尚、各配合について、サンプルは３つ用意して、それぞれのサンプルについて測定した結果を表２に示すものとした。また、表２中、「ｃｆ」は、凝集破壊でシーリング材自身が破壊したことを示すものである。
[Test 2: Peel test]
Prepare two rubber roofing sheets (Fiber Reinforcement Sheet manufactured by Bando Chemical Co., Ltd.) that have been vulcanized by embedding reinforcing fibers between EPDM rubbers as the deposition site and protective sheet. Then, one side of each sheet is overlapped with a width of 25 mm, and an unvulcanized synthetic rubber sheet of the above-described compounding 1 to 3 is placed in an overlapping region (80 mm × 25 mm) between the sheets in water at 25 to 27 ° C. After applying the load for 24 hours, after 30 minutes from taking out to the atmosphere, the test piece having a width of 10 mm and a length of 115 mm is cut out and the two roofing sheets are separated from each other so that a shearing force is applied to the overlapped area. By pulling in the direction, the adhesive strength and the state in which the bond is broken are visually checked. It was expressed as a percentage by measuring the cohesive failure area in 5 mm). The results are shown in Table 2. For each formulation, three samples were prepared, and the measurement results for each sample are shown in Table 2. In Table 2, “cf” indicates that the sealing material itself was destroyed by cohesive failure.
上記表２から、針入度４０及び６０の実施例７及び実施例８では、接合力が４０Ｎ／ｃｍ２以上あり、水中で被着部位に付着した後は未加硫の合成ゴムシートが破壊されている面積は１０％以下であり、十分な防水機能があることがわかった。一方、針入度８０の比較例４は、凝集破壊した領域の割合が多いため、未加硫の合成ゴムシート自体が破壊される可能性が高く、また、接合力が４０Ｎ／ｃｍ２未満と接着力が弱く防水機能が十分ではないことがわかった。 From Table 2 above, in Examples 7 and 8 with penetrations of 40 and 60, the bonding force is 40 N / cm 2 or more, and the unvulcanized synthetic rubber sheet breaks after adhering to the adherend in water. The area that is used is 10% or less, and it has been found that there is a sufficient waterproof function. On the other hand, in Comparative Example 4 having a penetration of 80, the ratio of the cohesive failure region is large, so there is a high possibility that the unvulcanized synthetic rubber sheet itself is destroyed, and the bonding force is less than 40 N / cm 2. It was found that the adhesive strength was weak and the waterproof function was not sufficient.
［試験３：耐水圧漏水試験］
耐水圧漏水試験をするために、次の構成の実施例９及び比較例５を作成した。
[Test 3: Water pressure leak resistance test]
In order to perform a water pressure leak test, Example 9 and Comparative Example 5 having the following configurations were prepared.
（実施例９）
厚さ１．５ｍｍのルーフィングシートを直径３００ｍｍの円形に裁断して、中央部に１０ｍｍ角の穴を空けた孔空きシートを被着部位の材料とした。この孔空きシートの両面を洗剤により洗浄して、水道水で満たされた水槽内に沈めた。
上記配合４の未加硫の合成ゴムシートを厚さ０．８ｍｍ、幅１００ｍｍ、高さ１００ｍｍに成形して、厚さ１．５ｍｍ、幅３００、高さ３００ｍｍのルーフィングシートを保護シートの中央部に貼り付けて、本実施例の修復材とした。
この修復材の未加硫の合成ゴムシートを、上記した被着部位（孔空きシート）に被着させる前に、１５粒/１００ｃｍ２（０．１５ｇ）の砂粒を散布して施工雰囲気に近づけるようにした。
そして、この修復材の未加硫の合成ゴムシートを水槽内で、孔空きシートの孔に貼り付けて、修復材の上から０．０３ｋｇ/ｃｍ２の荷重がかかるように錘を載せて２４時間経過後に、水槽から修復材が貼り付けられた孔空きシートを取り出して実施例９とした。
Example 9
A roofing sheet having a thickness of 1.5 mm was cut into a circle having a diameter of 300 mm, and a perforated sheet having a 10 mm square hole in the center was used as a material for the deposition site. Both sides of the perforated sheet were washed with a detergent and submerged in a water tank filled with tap water.
The unvulcanized synthetic rubber sheet of the above composition 4 is molded into a thickness of 0.8 mm, a width of 100 mm, and a height of 100 mm, and a roofing sheet having a thickness of 1.5 mm, a width of 300, and a height of 300 mm is formed at the center of the protective sheet. This was used as a restoration material of this example.
Before adhering the unvulcanized synthetic rubber sheet of this restoration material to the above-mentioned application site (perforated sheet), 15 grains / 100 cm 2 (0.15 g) of sand grains are sprayed to bring it closer to the construction atmosphere. I did it.
Then, the unvulcanized synthetic rubber sheet of the restoration material is attached to the hole of the perforated sheet in the water tank, and a weight is placed so that a load of 0.03 kg / cm 2 is applied from above the restoration material. After the elapse of time, the perforated sheet with the restoration material attached was taken out of the water tank and used as Example 9.
（比較例５）
実施例９の未加硫の合成ゴムシートの代わりに、耐水性処方の液状タイプ瞬間接着剤（ヘンケルジャパン社製の「ロックタイトパワージェル」（登録商標））を、ルーフィングシートの中央部の１００ｍｍ×１００ｍｍの領域に、３．０ｇ／ｃｍ２の割合で塗布したものを修復材とした以外は、実施例９と同様に処理したものを比較例５とした。
(Comparative Example 5)
Instead of the unvulcanized synthetic rubber sheet of Example 9, a liquid type instant adhesive ("Loctite Power Gel" (registered trademark) manufactured by Henkel Japan) with a water-resistant prescription was added to the central part of the roofing sheet 100 mm x Comparative Example 5 was treated in the same manner as Example 9 except that a restoration material was applied to a 100 mm region at a rate of 3.0 g / cm 2 .
上記修復材が付着した状態の孔空きシート（実施例９及び比較例５）に、修復材の上から０．８ＭＰａ、１．０ＭＰａ、１．５ＭＰａの水圧をそれぞれ１０分加えて、孔空きシートの下方からの水漏れ及び施工性の評価を行った結果を表３に示す。 A water pressure of 0.8 MPa, 1.0 MPa, and 1.5 MPa is applied to the perforated sheet (Example 9 and Comparative Example 5) with the restorative material attached thereto for 10 minutes from the top of the restorative material, respectively. Table 3 shows the results of water leakage from below and evaluation of workability.
表３から、耐水性処方の接着剤では、塗布して被着部位に貼り付ける前に、硬化した結果、漏水が発生することがわかる。また、実施例９では、１．５ＭＰａの水圧がかかっても漏水がないことがわかる。
また、実施例９で使用されている未加硫のブチルゴムの配合は、実施例７と同じ配合の未加硫のブチルゴムであり、単位面積当たりの荷重が実施例７では、０．０２４ｋｇ／ｃｍ２であり、実施例９の単位面積当たりの荷重０．０３ｋｇ／ｃｍ２と近いため、実施例９の未加硫のブチルゴムを剥離試験をした場合にも破壊状態は１０％ｃｆ程度と推定される。このことから、実施例９の未加硫のブチルゴムは１０％ｃｆの破壊状態であるにも関わらず、十分な防水機能を発揮することがわかる。
It can be seen from Table 3 that the water-resistant adhesive causes water leakage as a result of curing before being applied and affixed to the application site. Moreover, in Example 9, it turns out that there is no water leak even if the water pressure of 1.5 MPa is applied.
Further, the unvulcanized butyl rubber used in Example 9 is an unvulcanized butyl rubber having the same composition as in Example 7. In Example 7, the load per unit area was 0.024 kg / cm. 2 and the load per unit area of Example 9 is close to 0.03 kg / cm 2 , so even when the unvulcanized butyl rubber of Example 9 is subjected to a peel test, the fracture state is estimated to be about 10% cf. The From this, it can be seen that the unvulcanized butyl rubber of Example 9 exhibits a sufficient waterproof function even though it is in a broken state of 10% cf.
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| CN110185004A (en) * | 2019-05-29 | 2019-08-30 | 中国葛洲坝集团第一工程有限公司 | Concrete face rockfill dam empty processing method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4420275A (en) * | 1982-04-19 | 1983-12-13 | Shell Oil Company | Alaskan offshore drilling base |
| JPS61154929A (en) * | 1984-12-28 | 1986-07-14 | Mitsuboshi Belting Ltd | Under water jointing of waterproof sheet |
| JPH07256776A (en) * | 1994-03-23 | 1995-10-09 | Toyo Tire & Rubber Co Ltd | Underwater repairing method for vulcanized rubber sheet |
| JPH0913518A (en) * | 1995-06-30 | 1997-01-14 | Asahi Corp | Water drip sheet |
| JPH10131314A (en) * | 1996-10-25 | 1998-05-19 | Asahi Corp | Thermal insulation waterproof material |
| JPH10131315A (en) * | 1996-10-25 | 1998-05-19 | Asahi Corp | Cut-off material |
| JP2001254341A (en) * | 2000-03-09 | 2001-09-21 | Toyo Tire & Rubber Co Ltd | Waterproofing structure and joint method for waterproofing sheet |
| JP2003020655A (en) * | 2001-07-06 | 2003-01-24 | Nippon Kaijo Koji Kk | Impervious mat |
| JP2007302148A (en) * | 2006-05-12 | 2007-11-22 | Osaka Prefecture | Base vessel for laying sheet and laying construction method for water-shielding sheet |
| JP2008045333A (en) * | 2006-08-16 | 2008-02-28 | Bridgestone Corp | Water stop material and water cut-off structure of elastic joint |
-
2013
- 2013-12-09 JP JP2013253867A patent/JP6309256B2/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4420275A (en) * | 1982-04-19 | 1983-12-13 | Shell Oil Company | Alaskan offshore drilling base |
| JPS61154929A (en) * | 1984-12-28 | 1986-07-14 | Mitsuboshi Belting Ltd | Under water jointing of waterproof sheet |
| JPH07256776A (en) * | 1994-03-23 | 1995-10-09 | Toyo Tire & Rubber Co Ltd | Underwater repairing method for vulcanized rubber sheet |
| JPH0913518A (en) * | 1995-06-30 | 1997-01-14 | Asahi Corp | Water drip sheet |
| JPH10131314A (en) * | 1996-10-25 | 1998-05-19 | Asahi Corp | Thermal insulation waterproof material |
| JPH10131315A (en) * | 1996-10-25 | 1998-05-19 | Asahi Corp | Cut-off material |
| JP2001254341A (en) * | 2000-03-09 | 2001-09-21 | Toyo Tire & Rubber Co Ltd | Waterproofing structure and joint method for waterproofing sheet |
| JP2003020655A (en) * | 2001-07-06 | 2003-01-24 | Nippon Kaijo Koji Kk | Impervious mat |
| JP2007302148A (en) * | 2006-05-12 | 2007-11-22 | Osaka Prefecture | Base vessel for laying sheet and laying construction method for water-shielding sheet |
| JP2008045333A (en) * | 2006-08-16 | 2008-02-28 | Bridgestone Corp | Water stop material and water cut-off structure of elastic joint |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185004A (en) * | 2019-05-29 | 2019-08-30 | 中国葛洲坝集团第一工程有限公司 | Concrete face rockfill dam empty processing method |
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