JP2004037359A

JP2004037359A - Sticking determination method for mechanical fixing method

Info

Publication number: JP2004037359A
Application number: JP2002197136A
Authority: JP
Inventors: Hisatsugu Tomioka; 冨岡　久貢
Original assignee: Lonseal Corp
Current assignee: Lonseal Corp
Priority date: 2002-07-05
Filing date: 2002-07-05
Publication date: 2004-02-05

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate the determination on whether a waterproof sheet is securely stuck to a sticking member or not, in a method for sticking the waterproof sheet to the sticking member, from the upper part of the waterproof sheet. <P>SOLUTION: In a waterproof sheet laying structure for sticking the rear surface of the waterproof sheet to the sticking member with heat, a solvent, or the like, in which the waterproof sheet is laid on the overall surface of a waterproof base, after the sticking member such as a disk having a sticking layer with the waterproof sheet is fixed on the upper surface thereof with a screw or the like in a required position of the waterproof base, it can be determined whether the waterproof sheet is stuck to the sticking member or not, by sucking with a sucker the surface of the waterproof sheet on the disk to pull the waterproof sheet. Namely, when the waterproof sheet is fully stuck to the sticking member, the waterproof sheet is not pulled up. When the waterproof sheet is not stuck to the sticking member, the waterproof sheet on the sticking failure part is pulled up. Thus, the degree of the sticking can be determined. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、建築や土木用の防水工事において、防水下地に予め固定されたディスク等の防水シート固着具に防水シートを熱や溶剤を利用して、該固着具と防水シートを固着する防水工事において、防水シートと該固着具とが固着されているかどうかを簡単に判定できる方法に関する。
【０００２】
【従来の技術】
防水下地に予め、表面に防水シートと溶着又は接着できるように防水シートと同材質、例えば塩化ビニル樹脂、又はポリエステル系ホットメルト接着剤等で被覆されたディスク等の固着具をビス等で固定し、その上に、防水シートを全面に敷設し、該固着具面の防水シートに溶剤入りの注射針を差込み、溶剤を防水シートと固着具の間に注入して、防水シ
ートと該固着具表面の溶着樹脂層を溶解して、防水シートと固着具を溶着固着するか、固着具面の防水シート上に誘導加熱装置を置き、誘導加熱で固着具表面のホットメルト接着剤層を溶融させて、防水シートを固着具に接着固着する方法が防水シートの機械的固定方法のひとつとして、行われている。
【０００３】
【発明が解決しようとする課題】
防水シートの上から防水シートと固着具を固着させるため、防水シートが固着具に確実に固着されているか否かの判定が容易にできなかったため、溶着不良がしばしば発生していた。
そこで、誘導加熱装置を用いて固着する工法において固着程度を確認する方法として、特開平１０−７７７２２に開示の、固着具の中央部に環状凹部を形成し、固着させた際に、環状凹部跡がシートに見えることで、全面溶着されているか判別する方法がある。しかしながら、この方法では、光の関係で判別しずらい場合があるし、加熱で固着させる時には、熱でシートが軟らかくなり、上から力を加えると固着されていなくとも凹部跡が付き、誤判定する場合がある等の問題を有するし、液で固着する場合に斑絞で判定するには、固着具の中央から周辺に液を拡散溶着させていくために、有効的な方法ではない。
【０００４】
本発明は、上記問題に鑑みなされたもので、固着方法に関係なく、固着具と防水シートとの固着程度が容易に且つ確実に確認できる判定方法を得ることを目的とする。
【０００５】
【課題を解決するための手段】
上記課題を解決するために、請求項１記載の発明は、防水下地の所要の位置に、上面に防水シートとの固着層を有するディスク等の固着具がビス等で固定された後、防水下地全面に防水シートが敷設され、防水シート裏面と固着具を熱又は溶剤等で固着する防水シート敷設構造において、吸着具でディスク上の防水シート表面を吸着させて、防水シートを引っ張ることで、固着具と防水シートが固着されているかどうか判定することができる。即ち、防水シートが固着具に完全に固着されている場合は、防水シートは浮き上がらないが、防水シートと固着具が固着していない場合は、固着不良部分の防水シートが浮き上がり、更には、擬固着等の固着が弱い場合にも、防水シートが浮き上がるために、未固着又は擬固着等の固着不良が容易に判別できる。
【０００６】
請求項２では吸着具を吸盤としたことで、取り扱いが簡単になり判定の作業性が向上する。
【０００７】
【発明の実施の形態】
本発明は、吸着具を利用してディスク等と防水シートの固着程度を判定する方法であるが、吸引具としては特に限定されず、例えば電気掃除機に吸引ホースを接続したもの、吸盤の様に吸引効果が有り防水シートを吸引吸着できるもの、また、粘着剤を利用することも可能である。粘着剤を使用する場合は、粘着剤を付着させるための吸着部と引っ張るための取っ手を備えていればよい。なかでも扱い易さを考慮すれば吸盤が好ましい。
また、吸盤などの吸引方式の吸着具を使用する場合は、防水シートとの吸着性、密着性を良くするために、吸着具の吸着部または防水シート面に水、オイル、軟接着剤等を塗布して吸着させても良い。
【０００８】
吸盤の材質は柔軟であれば特に限定されず、塩化ビニル樹脂の他に、エチレン−酢酸ビニル共重合樹脂、エチレン−（メタ）アクリル酸エステル共重合樹脂、エチレン−（メタ）アクリル酸共重合樹脂、エチレン系又はポリプロピレン系のオレフィン系エラストマー、ポリエステル系エラストマー、ウレタン系エラストマー、スチレン系エラストマー、スチレン・アクリル共重合樹脂等など挙げられ、単独で使用してもよく、２種以上複合して使用してもよい。
【０００９】
吸盤の色は有色でも良いが、防水シートの浮き上がり状態を見るには透明な材質が好ましい。吸盤の径はディスク等の固着具より小さいほうが好ましく、吸着力を考慮すると、３０〜６０ｍｍ程が好ましい。
【００１０】
判定方法の例を図１（イ）、（ロ）及び図２に示すが、本発明はこれら方法に限定されるものではない。
実施形態の１例を図１に示すが、図１の（イ）は固着具と防水シートの固着状態が良好なものを示し、図１の（ロ）は固着具と防水シートの固着状態が不良なのものを示す。
図１では、防水下地の任意の位置に、固着具をＭ６のプラグビスで固定しており、固着具は径が８０ｍｍ、厚みが０．６ｍｍのステンレス製ディスクの表面に融点が１３０℃のポリエステル樹脂系ホットメルト接着剤を０．１ｍｍ厚になるように溶融ローラーで塗布し被覆したものである。ディスクは補強のために、端末を折り曲げてもよく、中央部に補強用のリブをつけても良い。
次に、固着具の上から、厚みが１．５ｍｍの塩ビ樹脂製防水シートを敷設する。各防水シート端部は４０〜５０ｍｍ重ね合わせてそれぞれ溶着し、床全面を覆うように敷設する。
ディスク上の防水シートに誘導加熱装置を当てて、誘導加熱装置を５秒程作動させ、電磁波を発振させてディスクのステンレス板を発熱し、ディスク表面のホットメルト接着剤を溶かし、防水シートとディスクを接着固着する。
【００１１】
ディスクと防水シートを冷却した後、吸着具として、径が５０ｍｍの横穴式で塩化ビニル樹脂製の透明な吸盤を用い、ディスク上の防水シート表面に吸盤を当てて防水シートを吸着させた後、吸盤の横穴にリングをつけて引っ張り、固着程度を判定する。
ディスク上の防水シートが浮き上がらなければ、ディスクと防水シートが完全に固着されている事が解り、ディスク上の防水シートが浮き上がれば、誘導加熱装置の圧接が不均一で防水シートが固着されていないことが解り、再固着を要することになる。
【００１２】
実施形態の他の例を図２に示すが、吸着具の取っ手には横穴を設けてあり、該穴に支持リング状クランプ環、Ｕ状クランプ環、結束バンドを通し、携帯用引っ張り試験機、例えばプッシュプルゲージ（ＳＨＩＭＰＯ）の留め具に取り付けて、引っ張ることで、固着強度を測ることが可能としている。このように、現場で、経時的、温度による固着変化も測定できるので、非破壊で固着の劣化度管理も容易にできるようになる。
本発明の判定方法は、屋上以外の地下室やトンネル等の明るさが不十分な環境下で、壁面に防水シートを固着する場合も、ライトを当てて浮き上がりを目視判断ができ、地下室やトンネル等でも確実な防水シートの固着が可能となる。
【００１３】
【発明の効果】
固着具上の防水シートを吸着具に吸着させて、防水シートの浮き具合を見ることで、固着具と防水シートの固着度合や固着不良を容易に且つ確実に確認でき、屋上以外の室内や、地下室や、トンネル等の目視しずらい環境下の防水施工でも固着不具合を判別できる。
更には、経時変化における溶着度合も確認できるので、定期点検にも利用可能である。
【図面の簡単な説明】
【図１】実施形態１例：断面図
（イ）固着良好の形態
（ロ）固着不良の形態
【図２】実施形態の他の例：断面図
【符号の説明】
Ａ：固着具を引っ張る方向
１：防水下地
２：固着具
３：プラグビス
４：防水シート
５：横穴つき吸盤
６：横穴
７：Ｕ字状フック
８：プッシュプルゲージ
９：ディスクとシートの固着不良による浮き[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a waterproofing work for waterproofing construction or civil engineering, in which a waterproofing sheet is fixed to a waterproofing sheet fixing tool such as a disc which is previously fixed to a waterproof base by using heat or a solvent to fix the waterproofing sheet to the waterproofing sheet. The present invention relates to a method for easily determining whether or not a waterproof sheet and the fixing device are fixed.
[0002]
[Prior art]
A fastener such as a disc coated with the same material as the waterproof sheet, for example, a vinyl chloride resin or a polyester hot melt adhesive, is fixed to the waterproof base in advance with screws so that the surface can be welded or adhered to the waterproof sheet. , A waterproof sheet is laid on the entire surface, a syringe needle containing a solvent is inserted into the waterproof sheet on the surface of the fixing device, and the solvent is injected between the waterproof sheet and the fixing device. By dissolving the welding resin layer and fixing the waterproof sheet and the fixing device by welding, or placing an induction heating device on the waterproof sheet on the fixing device surface and melting the hot melt adhesive layer on the fixing device surface by induction heating. A method of adhesively fixing a waterproof sheet to a fixing tool has been performed as one of mechanical fixing methods of a waterproof sheet.
[0003]
[Problems to be solved by the invention]
Since the waterproof sheet and the fixing tool are fixed from above the waterproof sheet, it is not easy to determine whether or not the waterproof sheet is securely fixed to the fixing tool, so that welding failure often occurs.
Therefore, as a method of confirming the degree of fixation in a method of fixing using an induction heating device, an annular concave portion is formed at the center of the fixing tool disclosed in Japanese Patent Application Laid-Open No. H10-77722, There is a method of judging whether or not the entire surface is welded by seeing the sheet on the sheet. However, in this method, it may be difficult to determine the relationship due to light, and when the sheet is fixed by heating, the sheet is softened by heat. This is not an effective method because the liquid is diffused and welded from the center to the periphery of the fixing tool when determining by fixing with a liquid.
[0004]
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a determination method capable of easily and reliably confirming the degree of fixation between a fixing tool and a waterproof sheet regardless of a fixation method.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention according to claim 1 is characterized in that a fixing tool such as a disk having a fixing layer with a waterproof sheet on the upper surface is fixed to a required position of the waterproof base with screws or the like, and then the waterproof base is fixed. In a waterproof sheet laying structure where the waterproof sheet is laid on the entire surface and the back of the waterproof sheet and the fixing device are fixed by heat or a solvent, etc., the surface of the waterproof sheet on the disc is sucked by the suction device, and the waterproof sheet is pulled to secure It can be determined whether the tool and the waterproof sheet are fixed. That is, when the waterproof sheet is completely fixed to the fixing device, the waterproof sheet does not float, but when the waterproof sheet and the fixing device are not fixed, the waterproof sheet of the poorly adhered portion rises, and furthermore, the pseudo sheet does not float. Even when the fixation such as the fixation is weak, since the waterproof sheet floats up, the fixation failure such as the non-fixation or the pseudo fixation can be easily determined.
[0006]
In the second aspect, since the suction tool is a suction cup, the handling is simplified and the workability of the determination is improved.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
The present invention is a method of judging the degree of sticking of a disc or the like to a waterproof sheet using a suction tool. However, the suction tool is not particularly limited. For example, a suction hose connected to a vacuum cleaner, a suction cup-like device, etc. It is also possible to use a material which has a suction effect and can suck and adsorb the waterproof sheet, or an adhesive. When using an adhesive, it is only necessary to provide a suction portion for attaching the adhesive and a handle for pulling. Above all, a sucker is preferable in consideration of ease of handling.
When using a suction-type suction tool such as a suction cup, use water, oil, soft adhesive, etc. on the suction part of the suction tool or on the surface of the waterproof sheet to improve the adsorbability and adhesion to the waterproof sheet. It may be applied and absorbed.
[0008]
The material of the suction cup is not particularly limited as long as it is flexible. In addition to the vinyl chloride resin, an ethylene-vinyl acetate copolymer resin, an ethylene- (meth) acrylate copolymer resin, and an ethylene- (meth) acrylic acid copolymer resin , Ethylene-based or polypropylene-based olefin-based elastomers, polyester-based elastomers, urethane-based elastomers, styrene-based elastomers, styrene-acrylic copolymer resins, etc., and may be used alone or in combination of two or more. You may.
[0009]
The color of the suction cup may be colored, but a transparent material is preferable to check the floating state of the waterproof sheet. The diameter of the suction cup is preferably smaller than that of a fixing device such as a disk, and in consideration of the suction force, it is preferably about 30 to 60 mm.
[0010]
Examples of the determination method are shown in FIGS. 1A, 1B, and 2, but the present invention is not limited to these methods.
One example of the embodiment is shown in FIG. 1. FIG. 1 (A) shows a state in which the fixing tool and the waterproof sheet are well fixed, and FIG. 1 (B) shows a state where the fixing tool and the waterproof sheet are fixed. Indicates a bad one.
In FIG. 1, a fixing tool is fixed to an arbitrary position on the waterproof base with a M6 plug screw. The fixing tool is a polyester resin having a melting point of 130 ° C. on the surface of a stainless steel disc having a diameter of 80 mm and a thickness of 0.6 mm. A hot-melt adhesive was applied and coated with a melting roller to a thickness of 0.1 mm. The disc may be folded at the end for reinforcement, and a reinforcing rib may be provided at the center.
Next, a waterproof sheet made of a PVC resin having a thickness of 1.5 mm is laid on the fastener. The ends of the waterproof sheets are overlapped with each other by 40 to 50 mm and welded, and laid so as to cover the entire floor.
Apply the induction heating device to the waterproof sheet on the disk, operate the induction heating device for about 5 seconds, oscillate electromagnetic waves to heat the stainless steel plate of the disk, melt the hot melt adhesive on the disk surface, Is adhered and fixed.
[0011]
After cooling the disc and the waterproof sheet, using a transparent suction cup made of vinyl chloride resin with a horizontal hole with a diameter of 50 mm as a suction tool, applying the suction cup to the surface of the waterproof sheet on the disc and adsorbing the waterproof sheet, A ring is attached to the side hole of the suction cup and pulled to determine the degree of sticking.
If the waterproof sheet on the disk does not rise, it is understood that the disk and the waterproof sheet are completely fixed.If the waterproof sheet on the disk rises, the pressure contact of the induction heating device is uneven and the waterproof sheet is fixed. It turns out that no fixation is necessary.
[0012]
Another example of the embodiment is shown in FIG. 2, in which a side hole is provided in a handle of the suction tool, and a support ring-shaped clamp ring, a U-shaped clamp ring, and a binding band are passed through the hole, and a portable tensile tester, For example, by attaching to a fastener of a push-pull gauge (SHIMPO) and pulling, it is possible to measure the fixing strength. As described above, since the change in adhesion due to time and temperature can be measured on site, the degree of deterioration of adhesion can be easily managed without destruction.
The determination method of the present invention can be applied to a case where a waterproof sheet is adhered to a wall surface in an insufficiently bright environment such as a basement or a tunnel other than a rooftop. However, it is possible to securely attach the waterproof sheet.
[0013]
【The invention's effect】
By adsorbing the waterproof sheet on the fixing device to the suction device and observing the floating degree of the waterproof sheet, the degree of fixing and the fixing failure between the fixing device and the waterproof sheet can be easily and reliably checked, and the room other than the rooftop, Sticking failures can be identified even in waterproofing work under difficult-to-view environments such as basements and tunnels.
Further, since the degree of welding with the lapse of time can be checked, it can be used for periodic inspection.
[Brief description of the drawings]
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 Example of a first embodiment: sectional view (a) Form of good adhesion (b) Form of poor fixing [FIG. 2] Another example of embodiment: sectional view [Description of reference numerals]
A: Direction of pulling the fixing tool 1: waterproof base 2: fixing tool 3: plug screw 4: waterproof sheet 5: suction cup with side hole 6: side hole 7: U-shaped hook 8: push-pull gauge 9: due to poor fixing of disc and sheet float

Claims

防水下地の所要の位置に、上面に防水シートとの固着層を有するディスク等の固着具がビス等で固定された後、防水下地全面に防水シートが敷設され、防水シート裏面と固着具を熱又は溶剤等で固着する防水シート敷設構造において、固着具上の防水シート表面に吸着具を当てて、防水シートを吸着させ引っ張ることで、ディスク等と防水シートの固着程度を判定することを特徴とする防水シート固着判定方法。A fixing device such as a disk having a fixing layer with a waterproof sheet on the upper surface is fixed to a required position of the waterproofing substrate with a screw or the like. Or, in a waterproof sheet laying structure fixed by a solvent or the like, a suction device is applied to the surface of the waterproof sheet on the fixing device, and the waterproof sheet is sucked and pulled to determine the degree of fixation of the disc or the like to the waterproof sheet. Waterproof sheet sticking determination method.

吸着具が柔軟性のある吸盤であることを特徴とする請求項１に記載の防水シート固着判定方法。The method according to claim 1, wherein the suction tool is a flexible suction cup.