JPH0366445B2 - - Google Patents
Info
- Publication number
- JPH0366445B2 JPH0366445B2 JP62326195A JP32619587A JPH0366445B2 JP H0366445 B2 JPH0366445 B2 JP H0366445B2 JP 62326195 A JP62326195 A JP 62326195A JP 32619587 A JP32619587 A JP 32619587A JP H0366445 B2 JPH0366445 B2 JP H0366445B2
- Authority
- JP
- Japan
- Prior art keywords
- paving
- waterproof layer
- floor slab
- melt
- waterproof
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 22
- 238000004078 waterproofing Methods 0.000 claims description 10
- 239000012943 hotmelt Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 239000011384 asphalt concrete Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000004831 Hot glue Substances 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- 229920003051 synthetic elastomer Polymers 0.000 description 3
- 239000005061 synthetic rubber Substances 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Packages (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、床版上に防水層を介して舗装材を敷
設して舗装する方法に関するもので、橋梁や高架
道路の建設、補修をする場合に利用される。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a method of paving by laying a paving material on a deck slab through a waterproof layer, and is used for constructing and repairing bridges and elevated roads. Used in cases.
（従来技術とその問題点）
橋梁や高架道路は、路床を構成するコンクリー
ト製、鋼板製等の床板の上に舗装層が形成されて
いるが、路面上の雨水が舗装層のクラツクや隙間
から裏面側へ到達し、これが床版、桁、支柱等に
侵入して、鉄筋を腐食させたり、構造物を劣化さ
せる原因となつている。(Prior art and its problems) Bridges and elevated roads have a pavement layer formed on the concrete, steel plate, etc. floor plates that make up the roadbed, but rainwater on the road surface can cause cracks and gaps in the pavement layer. These particles reach the backside of the building and invade floor slabs, girders, supports, etc., causing corrosion of reinforcing bars and deterioration of structures.
特に、橋梁や高架道路が海岸の近くや積雪地帯
に設けてある場合には、塩分の多い雨が降つた
り、融氷剤の塩分（CaCl2やNaCl等）が融けて
水に混ざるため、これらが床版、桁、柱等に侵入
することによつて鉄筋の腐食を助長する結果とな
る。 In particular, if a bridge or elevated road is built near the coast or in a snowy area, salty rain may fall, and salts from ice-melting agents (CaCl 2 , NaCl, etc.) may melt and mix with the water. By penetrating the floor slabs, girders, columns, etc., these particles promote corrosion of the reinforcing bars.
そのために、床版上に合成ゴム溶液を塗布乾燥
させたり、ゴムアスフアルトシートを貼着した
り、或いは、エポキシ樹脂を塗布する等して舗装
層との間に防水層を設けることによつて、舗装層
から侵入する水分の遮断が図られている。 For this purpose, a waterproof layer is provided between the pavement layer by applying a synthetic rubber solution onto the floor slab and drying it, pasting a rubber asphalt sheet, or applying an epoxy resin. Efforts are made to block moisture from entering through the pavement layer.
しかしながら、これらの防水層の形成は、以下
に述べるように、いずれも作業性が悪く、また、
機能上も不十分なものであつた。 However, as described below, the formation of these waterproof layers has poor workability, and
It was also functionally inadequate.
合成ゴム溶液を塗布乾燥させる場合には、塗布
後有機溶剤が残留した状態で舗装材を敷設してし
まうと、溶剤の影響によつて路面にブリスターが
発生するため、塗膜を長時間放置しておく必要が
あり、作業能率が著しく悪くなる。 When applying and drying a synthetic rubber solution, if the paving material is laid with organic solvent remaining after application, blisters will form on the road surface due to the effects of the solvent, so do not leave the paint film for a long time. This will significantly reduce work efficiency.
また、アスフアルトシートを貼着させる場合に
は、床版とシートとの間に気泡が残留するのを避
けられず、気泡の膨張が床版と舗装層とを剥離さ
せたり、舗装層を押し上げて路面にフクレを発生
させたりする原因となる。 In addition, when asphalt sheets are attached, it is unavoidable that air bubbles remain between the floor slab and the sheet, and the expansion of the air bubbles may cause the floor slab and pavement layer to separate or push up the pavement layer. This can cause blisters on the road surface.
更に、エポキシ樹脂を塗布して防水層を形成す
る場合には、樹脂を塗布して硬化させた後に舗装
工程に入るため、長時間にわたつて道路を閉鎖し
なければはらない不都合がある。樹脂の硬化前に
舗装をする場合には、未硬化の樹脂上での作業と
なるため、作業性も悪く防水膜の均一を保てなく
なる。 Furthermore, when a waterproof layer is formed by applying an epoxy resin, the paving process begins after the resin is applied and cured, resulting in the inconvenience that the road must be closed for a long period of time. If paving is performed before the resin hardens, the work will be performed on unhardened resin, resulting in poor workability and an inability to maintain uniformity of the waterproof membrane.
このように、層間剥離が生じたり、一定の膜圧
を確保できないと、防水層の防水機能が失われ、
路面上の雨水が容易に床版、桁、柱等の内部にま
で侵入して、これらの劣化を助長乃至促進してし
まうことになる。 In this way, if delamination occurs or a certain membrane pressure cannot be maintained, the waterproof function of the waterproof layer will be lost.
Rainwater on the road surface easily penetrates into the interior of floor slabs, girders, pillars, etc., and promotes or accelerates their deterioration.
（技術的課題）
本発明は、床版上に防水層を介して舗装材を敷
設し舗装する方法において、防水層の床版及び舗
装層に対する接着機能に耐久性を持たせることを
課題としたものである。(Technical Problem) The present invention aims to provide durability to the adhesion function of the waterproof layer to the floor slab and the pavement layer in a method of paving by laying paving material on the floor slab via a waterproof layer. It is something.
（技術的手段）
この技術的課題を解決するための技術的手段
は、
(イ) 防水層をゴム弾性のあるホツトメルト防水材
を溶融塗布して形成し、
(ロ) その上に加熱された舗装材を敷設すること、
である。(Technical means) The technical means for solving this technical problem are: (a) Forming the waterproof layer by melt-coating a hot melt waterproofing material with rubber elasticity, and (b) Applying heated pavement on top of it. This is the laying of materials.
（技術的手段の作用）
ホツトメルト防水剤を溶融して床版上に塗布す
ると、この段階で防水材は流動性を持つているた
めに、床版面の微細な凹凸やクラツク更にはその
他の隙間へ容易に進入してこれらを覆うと共に、
直ち大気によつて冷却されて固化し、床版上に防
水層が形成される。(Effect of technical means) When hot-melt waterproofing agent is melted and applied to the floor slab, the waterproofing material has fluidity at this stage, so it can easily penetrate into minute irregularities and cracks on the floor slab surface, as well as other gaps. It easily enters and covers these, and
It is immediately cooled by the atmosphere and solidified, forming a waterproof layer on the floor slab.
その上に加熱された舗装材を敷設すると、ホツ
トメルト防水材で構成される防水層の表面は、舗
装材の熱によつて再び溶解し、舗装材が冷却され
た階段で再び固化し、舗装材と床版とが強力に接
着される。 When heated paving material is laid on top of the hot melt waterproofing material, the surface of the waterproof layer made of hot-melt waterproofing material is melted again by the heat of the paving material, and the paving material solidifies again on the cooled stairs, causing the paving material to and the floor slab are strongly bonded.
ホツトメルト防水材はゴム弾性を持つているた
めに、車両の走行によつて床版が振動したり、床
版にクラツクが発生したり、若干の歪みが生じた
りしても、防水材は追随することができ、防水層
自体にクラツクが生ずることがない。 Hot-melt waterproofing material has rubber elasticity, so even if the floorplate vibrates, cracks, or becomes slightly distorted when the vehicle is running, the waterproofing material will follow suit. This prevents cracks from occurring in the waterproof layer itself.
従つて、防水層の床版及び舗装層に対する接着
力は、耐久性を持つことになる。 Therefore, the adhesive strength of the waterproof layer to the floor slab and pavement layer is durable.
（本発明の効果）
防水層の接着力に耐久性を持たせられる結果、
路面上の水が床版側へ移行するのを完全に阻止で
きるため、橋梁や高架道路の路床、支持柱、桁等
の劣化を防止することができ、橋梁や高架道路の
耐久性を向上できる利点がある。(Effects of the present invention) As a result of making the adhesive strength of the waterproof layer durable,
Since it can completely prevent water on the road surface from migrating to the deck slab, it can prevent deterioration of the roadbed, support columns, girders, etc. of bridges and elevated roads, improving the durability of bridges and elevated roads. There are advantages that can be achieved.
溶融塗布したホツトメルト防水材は、大気によ
つて早急に冷却されるために防水層は短時間で形
成される利点がある。そのため、防水層の形成及
び防水層上での作業を直ちに行えるため、舗装作
業時間が極めて短縮化され、道路の閉鎖時間も大
幅に短縮できる利点がある。 Hot-melt waterproofing materials applied by melting have the advantage that the waterproof layer can be formed in a short time because they are quickly cooled by the atmosphere. Therefore, since the formation of the waterproof layer and the work on the waterproof layer can be performed immediately, the paving work time can be extremely shortened, and the road closure time can also be significantly shortened.
このことは、舗装層の敷設が遅れることがあつ
ても、それ迄は道路開放が可能となることを意味
し、交通渋滞の解消にも寄与できる利点がある。 This means that even if there is a delay in laying the pavement layer, the road can be kept open until then, which has the advantage of contributing to relieving traffic congestion.
（実施態様）
上記の舗装材としては、アスフアルトコンクリ
ートが好適である。(Embodiment) Asphalt concrete is suitable as the above-mentioned paving material.
この舗装材は、160℃程度に加熱された状態で
現場に搬入され、路面に敷設された階段で100〜
110℃位に冷却させられる（寒冷地では90℃程度
になることもある）。 This paving material is delivered to the site heated to around 160 degrees Celsius, and is used for stairs laid on the road surface.
It is cooled to around 110 degrees Celsius (in cold regions it can reach around 90 degrees Celsius).
他方、気温が37〜38℃の状態では路面の温度
は，65℃に達することがある。 On the other hand, when the air temperature is between 37 and 38 degrees Celsius, the road surface temperature can reach 65 degrees Celsius.
従つて、ホツトメルト接着剤の軟化点は、80〜
100℃の間に設定しておくのが望ましいことにな
る。 Therefore, the softening point of hot melt adhesive is 80~
It is desirable to set the temperature between 100℃.
上記ホツトメルト防水材としては、合成ゴムを
主成分としたホツトメルト接着剤（例えばコニシ
株式会社製の「ボンドホツトメルトMU340シリ
ーズ」・「MU260シリーズ」）等が好適であるが、
その他のホツトメルト接着剤を使用しても良い。 As the above-mentioned hot melt waterproofing material, hot melt adhesives mainly composed of synthetic rubber (for example, "Bond Hot Melt MU340 series" and "MU260 series" manufactured by Konishi Co., Ltd.) are suitable.
Other hot melt adhesives may also be used.
Claims (1)
装する方法において、防水層をゴム弾性のあるホ
ツトメルト防水材を溶融塗布して形成し、その上
に加熱された舗装材を敷設する防水方法。 ２ 舗装材がアスフアルトコンクリートである特
許請求の範囲第１項記載に記載の舗装方法。[Claims] 1. In a method of paving by laying a paving material on a floor slab through a waterproof layer, the waterproof layer is formed by melt-coating a rubber-elastic hot-melt waterproofing material, and then heated. A waterproof method of laying paving materials. 2. The paving method according to claim 1, wherein the paving material is asphalt concrete.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62326195A JPH01165802A (en) | 1987-12-22 | 1987-12-22 | Waterproof method of floor board |
| KR1019880002945A KR930011583B1 (en) | 1987-12-22 | 1988-03-19 | Waterproof method of floor board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62326195A JPH01165802A (en) | 1987-12-22 | 1987-12-22 | Waterproof method of floor board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01165802A JPH01165802A (en) | 1989-06-29 |
| JPH0366445B2 true JPH0366445B2 (en) | 1991-10-17 |
Family
ID=18185081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62326195A Granted JPH01165802A (en) | 1987-12-22 | 1987-12-22 | Waterproof method of floor board |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH01165802A (en) |
| KR (1) | KR930011583B1 (en) |
-
1987
- 1987-12-22 JP JP62326195A patent/JPH01165802A/en active Granted
-
1988
- 1988-03-19 KR KR1019880002945A patent/KR930011583B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR890010369A (en) | 1989-08-08 |
| JPH01165802A (en) | 1989-06-29 |
| KR930011583B1 (en) | 1993-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |