JP2578713B2 - Waterproof construction method - Google Patents
Waterproof construction methodInfo
- Publication number
- JP2578713B2 JP2578713B2 JP4305886A JP30588692A JP2578713B2 JP 2578713 B2 JP2578713 B2 JP 2578713B2 JP 4305886 A JP4305886 A JP 4305886A JP 30588692 A JP30588692 A JP 30588692A JP 2578713 B2 JP2578713 B2 JP 2578713B2
- Authority
- JP
- Japan
- Prior art keywords
- rubber asphalt
- weight
- fiber
- asphalt emulsion
- parts
- 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 - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
- C04B41/5037—Clay, Kaolin
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/10—Accelerators; Activators
- C04B2103/14—Hardening accelerators
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建築土木分野における
建築物や土木構築物などに吹付けにより繊維補強ゴムア
スファルト層を形成する防水施工法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproofing method for forming a fiber-reinforced rubber asphalt layer by spraying a building or civil engineering structure in the field of civil engineering.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】従来、
固形分が５０〜７０重量％のゴムアスファルトエマルシ
ョンと凝固剤として塩化カルシウム、硝酸カルシウム、
明礬などの水溶液とを別個のノズルから吹付け施工して
ゴムアスファルト層を形成する方法が行われてきた。し
かしながら、これらの凝固剤を用いると瞬時に凝結する
ので、補強繊維シートをあらかじめ敷設して吹付けを行
なっても該補強繊維シートの表面にゴムアスファルト層
を形成することは可能であるが、繊維内部への浸透ない
しは繊維シート裏面への浸透が行なわれず、満足すべき
繊維補強のゴムアスファルト層が得られない。2. Description of the Related Art
Rubber asphalt emulsion having a solid content of 50 to 70% by weight and calcium chloride, calcium nitrate as a coagulant,
A method of spraying an aqueous solution such as alum from a separate nozzle to form a rubber asphalt layer has been performed. However, the use of these coagulants causes instantaneous coagulation, so even if the reinforcing fiber sheet is laid in advance and sprayed, it is possible to form a rubber asphalt layer on the surface of the reinforcing fiber sheet. No permeation into the interior or into the back of the fiber sheet takes place, and a satisfactory fiber-reinforced rubber asphalt layer cannot be obtained.
【０００３】これに対して、凝固剤としてアンモニウム
塩水溶液を用いるものは緩凝固性であるので、ゴムアス
ファルトエマルションとノズルの先端部で混合してか
ら、１本のノズルで吹付けることが可能であるが、さら
に不織布、織布あるいは編布などの補強繊維シートを敷
設して吹付けるときは、凝固する前にゴムアスファルト
エマルションが繊維シート内部及び裏面へ充分浸透す
る。しかし、補強繊維シートの敷設は手作業で行なうた
め労力を要し、しかも下地の凹凸の甚だしい箇所ではな
じみが悪く、該補強繊維シートの浮きが生じ易い。また
壁面など垂直面への吹付けは緩凝固性のため、ゴムアス
ファルトエマルションが凝固する前に流下し易く、この
ため増粘剤を添加してエマルションの粘度を上昇させる
ことが行なわれるが、エマルションの粘度が上昇する
と、繊維シートへの浸透が低下するなどの不都合が生ず
る。本発明者らは上記のような従来技術の欠点を解消す
るため鋭意検討を重ねた結果、すぐれた繊維補強ゴムア
スファルト層の形成方法を見出し本発明に到達した。On the other hand, those using an aqueous solution of an ammonium salt as a coagulant are slowly coagulating, so that they can be mixed with a rubber asphalt emulsion at the tip of the nozzle and then sprayed with a single nozzle. However, when laying and spraying a reinforcing fiber sheet such as a nonwoven fabric, a woven fabric or a knitted fabric, the rubber asphalt emulsion sufficiently penetrates into the inside and the back surface of the fiber sheet before solidifying. However, the laying of the reinforcing fiber sheet is performed manually, which requires labor. In addition, the reinforcing fiber sheet is not easily adapted to the place where the unevenness of the base is extremely large, and the reinforcing fiber sheet is likely to float. In addition, spraying on vertical surfaces such as wall surfaces is easy to flow down before the rubber asphalt emulsion solidifies because of its slow coagulation property. Therefore, a thickener is added to increase the viscosity of the emulsion. When the viscosity increases, there are disadvantages such as a decrease in permeation into the fiber sheet. The present inventors have conducted intensive studies to solve the above-mentioned drawbacks of the prior art, and as a result, have found an excellent method for forming a fiber reinforced rubber asphalt layer, and have reached the present invention.
【０００４】[0004]
【課題を解決するための手段】すなわち、本発明は、ア
ニオン系アスファルトエマルションを主材とし、これに
ゴムラテックス及び酸化亜鉛若しくは酸化マグネシウム
を加え、更にベントナイトを加えてなるゴムアスファル
トエマルションと、該ゴムアスファルトエマルションの
凝固剤としてのアンモニウム塩水溶液と、連続した合成
繊維とを、同時に吹付け、被施工面に繊維補強ゴムアス
ファルト層を形成することを特徴とする防水施工法であ
る。また、本発明において、ベントナイトの添加量はア
ニオン系アスファルトエマルションの固形分１００重量
部に対し０．２〜８重量部、連続した合成繊維の吹付け
量はゴムアスファルトエマルションの固形分１００重量
部に対し０．５〜５．０重量部の範囲で用いることが好
ましい。That is, the present invention provides a rubber asphalt emulsion comprising an anionic asphalt emulsion as a main material, a rubber latex and zinc oxide or magnesium oxide, and further adding bentonite. A waterproofing construction method characterized by simultaneously spraying an aqueous solution of an ammonium salt as a coagulant for an asphalt emulsion and a continuous synthetic fiber to form a fiber-reinforced rubber asphalt layer on a surface to be worked. In the present invention, the amount of bentonite added is 0.2 to 8 parts by weight based on 100 parts by weight of the solid content of the anionic asphalt emulsion, and the amount of continuous synthetic fiber sprayed is 100 parts by weight of the solid content of the rubber asphalt emulsion. On the other hand, it is preferably used in the range of 0.5 to 5.0 parts by weight.
【０００５】本発明に用いるアニオン系アスファルトエ
マルションは、例えば針入度４０〜２００のストレート
アスファルトをオレイン酸カリウム、アルキルベンゼン
スルホン酸ナトリウムなどの乳化剤を用いて乳化させた
ものが挙げられる。アニオン系アスファルトエマルショ
ン固形分の濃度は通常５０〜７０重量％である。ゴムラ
テックスとしては、スチレンブタジエンゴム、クロロプ
レンゴム、天然ゴムなどの単独若しくはそれらの混合乳
化物が挙げられ、アスファルト１００重量部に対し、５
〜２０重量部の配合が好適である。酸化亜鉛、酸化マグ
ネシウムは単独で用いてもよいが、併用しても差し支え
ない。The anionic asphalt emulsion used in the present invention is, for example, one obtained by emulsifying straight asphalt having a penetration of 40 to 200 with an emulsifier such as potassium oleate or sodium alkylbenzenesulfonate. The concentration of the solid content of the anionic asphalt emulsion is usually 50 to 70% by weight. Examples of the rubber latex include styrene-butadiene rubber, chloroprene rubber, and natural rubber alone or a mixed emulsion thereof.
A blending of up to 20 parts by weight is preferred. Zinc oxide and magnesium oxide may be used alone or in combination.
【０００６】本発明に用いるベントナイトはゴムアスフ
ァルトエマルションの増粘剤として使用するもので、凝
固剤として用いるアンモニウム塩と反応して増粘する。
このベントナイトの使用量は、アニオン系アスファルト
エマルションの固形分１００重量部に対して０．２〜８
重量部である。０．２重量部未満ではゴムアスファルト
エマルションの粘度が低すぎるので、壁面などの垂直面
への吹付けに際して該ゴムアスファルトエマルションが
凝固する前に流下するので好ましくない。また、８重量
部を超えると、６０秒以内に増粘してしまい作業性を著
しく悪くする。The bentonite used in the present invention is used as a thickener for a rubber asphalt emulsion, and reacts with an ammonium salt used as a coagulant to increase the viscosity.
The amount of the bentonite used is 0.2 to 8 parts by weight per 100 parts by weight of the solid content of the anionic asphalt emulsion.
Parts by weight. If the amount is less than 0.2 parts by weight, the viscosity of the rubber asphalt emulsion is too low, so that the rubber asphalt emulsion flows down before solidifying when spraying on a vertical surface such as a wall surface, which is not preferable. On the other hand, if it exceeds 8 parts by weight, the viscosity increases within 60 seconds and the workability is remarkably deteriorated.
【０００７】また、本発明の凝固剤としては、例えば硫
酸アンモニウム、硝酸アンモニウム、酢酸アンモニウ
ム、炭酸アンモニウム、スルファミン酸アンモニウムな
どのアンモニウム塩を用いることが必要である。これら
は、いずれも水溶液として用いられる。アンモニウム塩
水溶液の濃度は５〜３０重量％のものが好適に使用でき
る。本発明は、ゴムアスファルトエマルションに対して
アンモニウム塩水溶液を施工時に混合して凝固させる
が、その凝固は緩やかに行なわれる。その反応機構は、
ゴムアスファルトエマルション中の前記金属酸化物とア
ンモニウム塩が反応して金属アンモニウム錯塩が生成
し、更にｐＨの低下によって金属イオンが遊離され、エ
マルションの乳化剤と反応して不溶性の金属石ケンが形
成されてエマルションの不安定化が進行すると共に全体
の均一な凝固が同時に遂行されるものと解される。な
お、塩化カルシウム、硝酸カルシウムなどの瞬時に凝結
する凝固剤を用いると、ゴムアスファルトエマルション
及び凝固剤水溶液に含まれる水が、最初に連続した繊維
内部へ吸収されるため、ゴムアスファルトの浸透を阻害
し、従ってゴムアスファルト層を形成した後の防水性能
が低下するので好ましくない。As the coagulant of the present invention, it is necessary to use ammonium salts such as ammonium sulfate, ammonium nitrate, ammonium acetate, ammonium carbonate and ammonium sulfamate. These are all used as aqueous solutions. The concentration of the aqueous ammonium salt solution is preferably 5 to 30% by weight. In the present invention, an ammonium salt aqueous solution is mixed with a rubber asphalt emulsion at the time of application and solidified, but the solidification is performed slowly. The reaction mechanism is
The metal oxide and the ammonium salt in the rubber asphalt emulsion react with each other to form a metal ammonium complex salt, and further, the metal ion is released by lowering the pH, and reacts with the emulsion emulsifier to form an insoluble metal soap. It is understood that the destabilization of the emulsion progresses and the entire uniform coagulation is simultaneously performed. In addition, if a coagulant that sets instantaneously, such as calcium chloride or calcium nitrate, is used, the water contained in the rubber asphalt emulsion and the aqueous solution of the coagulant will be absorbed into the continuous fiber first, which impedes the penetration of rubber asphalt. Therefore, the waterproof performance after the formation of the rubber asphalt layer is undesirably reduced.
【０００８】 本発明においては、ゴムアスファルトエ
マルション、凝固剤と共に連続した合成繊維を同時に吹
付けるが、この連続した合成繊維としては、ポリエステ
ル、ポリアミド、ポリビニルアルコール、ポリプロピレ
ンなどのフィラメント糸、紡績糸、捲縮加工糸で、これ
らはいずれも好適に使用できる。繊維の太さは１００〜
２０００デニール程度のものが用いられ、繊維の吹付け
量は、ゴムアスファルトエマルションエマルションの固
形分１００重量部に対して０．５〜５．０重量部が適当
である。繊維の吹付けは、繊維の供給装置に格納された
糸巻から圧縮空気を利用して噴射ノズルから噴射して行
なわれる。吹付け量は、ノズルの数及び繊維の太さを適
宜選択して調整される。繊維の吹付け量が０．５重量部
未満ではゴムアスファルト層の補強効果が不十分であ
り、５．０重量部を超えるとゴムアスファルト層の防水
性能が低下するので好ましくない。繊維の吹付けがゴム
アスファルトエマルション及び硬化剤の吹付けと同時に
行なわれるので、連続した繊維がゴムアスファルト粒子
と三次元的に混合し、ゴムアスファルトエマルションの
凝固後、塗膜強度が大きく、防水性のすぐれた繊維補強
ゴムアスファルト層が形成される。In the present invention, continuous synthetic fibers are simultaneously sprayed with a rubber asphalt emulsion and a coagulant, and the continuous synthetic fibers include filament yarns such as polyester, polyamide, polyvinyl alcohol, and polypropylene, spun yarns , and wound yarns . Any of these can be suitably used in a crimped yarn . Fiber thickness is 100 ~
About 2000 denier is used, and the spray amount of the fiber is suitably 0.5 to 5.0 parts by weight based on 100 parts by weight of the solid content of the rubber asphalt emulsion. Spraying of the fiber is performed by injecting the compressed air from a spool stored in a fiber supply device from an injection nozzle. The spray amount is adjusted by appropriately selecting the number of nozzles and the thickness of the fiber. If the spray amount of the fiber is less than 0.5 parts by weight, the reinforcing effect of the rubber asphalt layer is insufficient, and if it exceeds 5.0 parts by weight, the waterproof performance of the rubber asphalt layer is undesirably reduced. Since the fiber is sprayed at the same time as the rubber asphalt emulsion and the hardener, the continuous fibers are mixed three-dimensionally with the rubber asphalt particles, and after the rubber asphalt emulsion solidifies, the coating strength is high and the waterproofness is high. An excellent fiber-reinforced rubber asphalt layer is formed.
【０００９】[0009]
【実施例】２連油圧式定量ポンプ（大和ボーリング社
製）を用い、試験例３の配合によるゴムアスファルトエ
マルションを１０リットル／分（固形分換算約６ｋｇ／
分）、１８％硫酸アンモニウム水溶液を０．５６リット
ル／分（固形分換算約０．１ｋｇ／分）の割合でスプレ
ーガンでノズルの先端で両者を混合して吹付けると同時
に、３００デニールの連続したポリエステル繊維のマル
チフィラメント糸（東洋紡績株式会社製）の糸巻を複数
個用意しクリルスタンドに取付け、エジェクター（テイ
ジン精機社製）４個により送り出し吹付けた。エジェク
ターはコンプレッサーの圧縮空気により繊維を送り出す
装置で空気量、空気圧、エジェクターの数及び繊維の太
さを調整することによって繊維の吹付け量（ｋｇ／分）
が決定される。本実施例では、空気量３７０リットル／
分、空気圧５ｋｇ／ｃｍ2 で繊維の吹付け量は０．１２
ｋｇ／分であった。このようにして、スレート板の表面
に厚さ４ｍｍの繊維補強ゴムアスファルト層を作製し
た。なお、空気量、空気圧、エジェクターの数、繊維の
太さを変えて繊維の吹付け量（ｋｇ／分）を調べた結果
を表１に示す。EXAMPLE Using a double hydraulic metering pump (manufactured by Daiwa Boring Co., Ltd.), a rubber asphalt emulsion prepared according to Test Example 3 was added at a rate of 10 liters / minute (solid content: about 6 kg / minute).
) And an aqueous 18% ammonium sulfate solution at a rate of 0.56 liter / min (approximately 0.1 kg / min in terms of solid content) by means of a spray gun at the tip of the nozzle at the same time as the mixture, and a continuous spray of 300 denier. A plurality of pegs of polyester fiber multifilament yarn (manufactured by Toyobo Co., Ltd.) were prepared, attached to a krill stand, and sent and sprayed by four ejectors (manufactured by Teijin Seiki Co., Ltd.). The ejector is a device that sends out fibers by the compressed air of a compressor. The amount of air blown (kg / min) by adjusting the air volume, air pressure, the number of ejectors and the thickness of the fibers
Is determined. In this embodiment, the air amount is 370 liters /
Minute, air pressure is 5 kg / cm 2 and the spray amount of fiber is 0.12
kg / min. Thus, a fiber-reinforced rubber asphalt layer having a thickness of 4 mm was formed on the surface of the slate plate. Table 1 shows the results of examining the amount of sprayed fiber (kg / min) by changing the amount of air, the air pressure, the number of ejectors, and the thickness of the fiber.
【００１０】[0010]
【表１】 [Table 1]
【００１１】[0011]
試験例１〜８ 表２に示すように、針入度６０〜８０のストレートアス
ファルトをオレイン酸カリウムにより乳化して作製した
アニオン系アスファルトエマルション（固形分６０重量
％）にスチレンブタジエンゴムラテックス（固形分５０
重量％）を混合し、酸化亜鉛又は酸化マグネシウムを加
え、更にベントナイト（関東ベントナイト社製利根印）
を加えてゴムアスファルトエマルションを作製した。次
いで、硫酸アンモウニウムを水に溶解し１８％濃度の水
溶液を作製し、上記ゴムアスファルトエマルションに加
え混合し３０秒後、６０秒後の粘度を調べた。Test Examples 1 to 8 As shown in Table 2, styrene-butadiene rubber latex (solid content) was added to an anionic asphalt emulsion (solid content 60% by weight) prepared by emulsifying straight asphalt having a penetration of 60 to 80 with potassium oleate. 50
Wt%), add zinc oxide or magnesium oxide, and further add bentonite (Tone seal manufactured by Kanto Bentonite Co.)
Was added to produce a rubber asphalt emulsion. Then, ammonium sulfate was dissolved in water to prepare an aqueous solution having a concentration of 18%, added to the above-mentioned rubber asphalt emulsion, mixed, and the viscosity was examined after 30 seconds and 60 seconds.
【００１２】[0012]
【表２】 [Table 2]
【００１３】ゴムアスファルトエマルションの垂直面へ
の吹付けに際して凝固剤混合６０秒後の粘度が３０００
ｃｐｓ以上でないと凝固する前に流下するので、ゴムア
スファルトエマルション中のアスファルト１００重量部
に対してベントナイトの添加量は少なくとも０．２重量
部を添加することが肝要である。また、ベントナイトの
添加量が増加すると粘度が上昇するが、凝固剤混合６０
秒後の粘度が７０００ｃｐｓを超えると作業性を著しく
悪くするとともに被施工面に均一な厚さのゴムアスファ
ルト層を形成しにくくなる。そしてベントナイトの添加
量が８重量部を超えると粘度は７０００ｃｐｓ以上とな
るため上記の不都合が生ずるので添加量は０．２〜８重
量部の範囲が好ましい。When the rubber asphalt emulsion is sprayed onto a vertical surface, the viscosity of the coagulant after mixing for 60 seconds is 3000.
If it is not more than cps, it flows down before solidification, so it is important to add at least 0.2 parts by weight of bentonite to 100 parts by weight of asphalt in the rubber asphalt emulsion. Further, the viscosity increases as the amount of bentonite added increases, but the coagulant mixture 60
If the viscosity after the second exceeds 7000 cps, the workability is remarkably deteriorated and it is difficult to form a rubber asphalt layer having a uniform thickness on the surface to be processed. If the amount of bentonite exceeds 8 parts by weight, the viscosity becomes 7000 cps or more and the above-mentioned disadvantages occur. Therefore, the amount of addition is preferably in the range of 0.2 to 8 parts by weight.
【００１４】試験例９〜１３ 試験例３のゴムアスファルトエマルション及び凝固剤を
用いて表３に示す繊維量のポリエステル繊維のマルチフ
ィラメント糸を同時にスレート板に吹付け、厚さ４ｍｍ
の繊維補強ゴムアスファルト層を作製した。スレート板
表面にはあらかじめ剥離性プライマーで処理しておき、
吹付け後の繊維補強ゴムアスファルト層から試験片を採
取してＪＩＳ Ａ ６０２１屋根用塗膜防水材５．３．
２に示す引張強度及びＪＩＳ Ａ ６９１０に規定する
透水試験を行なった。Test Examples 9 to 13 Using the rubber asphalt emulsion of Test Example 3 and a coagulant, multifilament yarns of polyester fibers having a fiber amount shown in Table 3 were simultaneously sprayed on a slate plate, and the thickness was 4 mm.
A fiber reinforced rubber asphalt layer was prepared. The slate plate surface is treated with a peelable primer in advance,
A test piece was collected from the fiber-reinforced rubber asphalt layer after spraying, and JIS A 6021, a waterproof coating material for roof 5.3.
2 and a water permeability test specified in JIS A 6910 were performed.
【００１５】[0015]
【表３】 [Table 3]
【００１６】ゴムアスファルト１００重量部に対する繊
維量が０．５重量部未満では、ＪＩＳ Ａ ６０２１に
規定されるゴムアスファルト糸の引張強度が３．５ｋｇ
ｆ／ｃｍ2 以上にならないので補強効果が不十分である
ことがわかる。また、繊維量が増加すると引張強度は増
大するが、ゴムアスファルト層の防水性能が低下するの
で、繊維量がゴムアスファルト１００重量部に対し５．
０重量部を超えないようにすることが好ましい。If the fiber content is less than 0.5 part by weight per 100 parts by weight of rubber asphalt, the tensile strength of the rubber asphalt yarn specified in JIS A 6021 is 3.5 kg.
Since it does not exceed f / cm 2 , it can be seen that the reinforcing effect is insufficient. Further, as the fiber amount increases, the tensile strength increases, but the waterproof performance of the rubber asphalt layer decreases.
It is preferable not to exceed 0 parts by weight.
【００１７】[0017]
【発明の効果】本発明の繊維補強ゴムアスファルト層を
形成する防水施工法は、建築土木分野における建築物や
土木構築物などに吹付けによって従来の補強繊維シート
の敷設とゴムアスファルト層の形成が同時に行なうこと
ができ、作業性がきわめて良好であるばかりでなく、下
地の凹凸に対しても順応性がよく、すぐれた繊維補強ゴ
ムアスファルト層を形成することができる。更に従来の
繊維シートの場合のように該シートに対する浸透性を考
慮する必要がないので特に立上がり面への施工では増粘
剤を多く用い、吹付け後のエマルションの流下を完全に
防止できる。According to the waterproofing method for forming a fiber reinforced rubber asphalt layer of the present invention, the conventional laying of a reinforcing fiber sheet and the formation of a rubber asphalt layer are simultaneously performed by spraying on a building or civil engineering structure in the field of construction and civil engineering. It is possible to form a fiber-reinforced rubber asphalt layer which is excellent in workability and also has good adaptability to irregularities on the underlayer. Further, since it is not necessary to consider the permeability to the sheet as in the case of the conventional fiber sheet, it is possible to use a large amount of a thickener particularly in the application to the rising surface, and to completely prevent the emulsion from flowing after spraying.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平３−2272（ＪＰ，Ａ) 特開 昭58−19358（ＪＰ，Ａ) 特開 平３−247658（ＪＰ，Ａ) 特公 昭57−19154（ＪＰ，Ｂ２) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-2272 (JP, A) JP-A-58-19358 (JP, A) JP-A-3-247658 (JP, A) 19154 (JP, B2)
Claims (3)
主材とし、これにゴムラテックス及び酸化亜鉛若しくは
酸化マグネシウムを加え、更にベントナイトを加えてな
るゴムアスファルトエマルションと、該ゴムアスファル
トエマルションの凝固剤としてのアンモニウム塩水溶液
と、連続した合成繊維とを、同時に吹付け、被施工面に
繊維補強ゴムアスファルト層を形成することを特徴とす
る防水施工法。1. A rubber asphalt emulsion comprising an anionic asphalt emulsion as a main component, a rubber latex and zinc oxide or magnesium oxide, and further adding bentonite, and an ammonium salt aqueous solution as a coagulant for the rubber asphalt emulsion. And a continuous synthetic fiber are sprayed simultaneously to form a fiber-reinforced rubber asphalt layer on the surface to be processed.
ファルトエマルションの固形分１００重量部に対し０．
２〜８重量部である請求項１記載の防水施工法。2. The amount of bentonite to be added is 0.1 to 100 parts by weight of the solid content of the anionic asphalt emulsion.
The waterproofing method according to claim 1, wherein the amount is 2 to 8 parts by weight.
ファルトエマルションの固形分１００重量部に対し０．
５〜５．０重量部である請求項１記載の防水施工法。3. A continuous synthetic fiber spraying amount of 0.1 part by weight based on 100 parts by weight of a solid content of a rubber asphalt emulsion.
The waterproofing method according to claim 1, wherein the amount is 5 to 5.0 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4305886A JP2578713B2 (en) | 1992-10-21 | 1992-10-21 | Waterproof construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4305886A JP2578713B2 (en) | 1992-10-21 | 1992-10-21 | Waterproof construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06136894A JPH06136894A (en) | 1994-05-17 |
| JP2578713B2 true JP2578713B2 (en) | 1997-02-05 |
Family
ID=17950500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4305886A Expired - Fee Related JP2578713B2 (en) | 1992-10-21 | 1992-10-21 | Waterproof construction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2578713B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006049364A1 (en) * | 2004-11-05 | 2006-05-11 | Re-New System Co.,Ltd | Process for the preparation of an adhesivable asphalt water-proof agent using a melting liquified gum mixture thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5719154A (en) * | 1980-07-08 | 1982-02-01 | Mitsubishi Electric Corp | Device equipped with high-frequency contactless arc igniting mechanism |
| JPS5819358A (en) * | 1981-07-25 | 1983-02-04 | Japan Synthetic Rubber Co Ltd | Asphalt emulsion |
| JPH0623314B2 (en) * | 1989-05-31 | 1994-03-30 | 日新工業株式会社 | Rubber asphalt emulsion composition for spray waterproofing method |
| JP2618732B2 (en) * | 1990-02-24 | 1997-06-11 | 一郎 深井 | Mixed composition mainly composed of asphalt emulsion |
-
1992
- 1992-10-21 JP JP4305886A patent/JP2578713B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06136894A (en) | 1994-05-17 |
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