JPH10265256A - Preventing composition of water leakage and crack repairing of building - Google Patents
Preventing composition of water leakage and crack repairing of buildingInfo
- Publication number
- JPH10265256A JPH10265256A JP8999497A JP8999497A JPH10265256A JP H10265256 A JPH10265256 A JP H10265256A JP 8999497 A JP8999497 A JP 8999497A JP 8999497 A JP8999497 A JP 8999497A JP H10265256 A JPH10265256 A JP H10265256A
- Authority
- JP
- Japan
- Prior art keywords
- water
- composition
- building
- sodium
- water leakage
- 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.)
- Pending
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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
-
- 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
- C04B2103/0045—Polymers chosen for their physico-chemical characteristics
- C04B2103/0053—Water-soluble polymers
-
- 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
- C04B2111/72—Repairing or restoring existing buildings or building materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、コンクリート、モ
ルタル構造物特にコンクリート建造物の漏水を阻止する
ための漏水阻止組成物に関する。さらに詳しくは、漏水
部位に施すだけで雨中でも即効的に漏水を阻止すること
のできる、浸透性の高い、かつ貫通性クラック及びヘア
ークラックへの閉塞性が優れた漏水阻止組成物に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water leakage preventing composition for preventing water leakage from concrete, mortar structures, especially concrete buildings. More specifically, the present invention relates to a water-leakage-preventing composition which is capable of preventing water-leakage immediately even during rain simply by being applied to a water-leakage site, and having a high permeability and an excellent property of blocking cracks and hair cracks.
【０００２】[0002]
【従来の技術】コンクリート、モルタル構造物特にコン
クリート建造物に生ずる亀裂や隙間からの雨漏りは重大
な被害をもたらす。コンクリート建造物の屋上や外壁は
一般に防水層や保護層、化粧層など幾重にも覆われてい
るために、それらの層を通して一旦雨漏りが発生する
と、雨漏り部位の発見が極めて困難であり、しかも、シ
ーリング剤などによる部分的な補修では漏水を阻止でき
ないことが多い。その結果、従来の工法では、雨漏り原
因となる箇所の 診断も含めて、表層や防水層の除去と
全面葺き替えというような膨大な労力と経費と工期を要
する工事が必要であった。しかも、これらの工事は実質
的に雨天では実施できないので、即効的な漏水防止は不
可能であった。2. Description of the Related Art Water leaks from cracks and gaps in concrete and mortar structures, especially concrete structures, cause serious damage. Since the roof and outer walls of concrete buildings are generally covered in multiple layers, such as waterproof layers, protective layers, and decorative layers, once rain leaks through those layers, it is extremely difficult to find the leak areas. Water leakage cannot often be prevented by partial repair with a sealing agent or the like. As a result, the conventional method required a huge amount of labor, cost, and construction work, such as removal of the surface layer and waterproof layer and replacement of the entire surface, including diagnosis of locations that could cause rain leakage. In addition, since these works cannot be carried out in rainy weather, it is impossible to prevent water leakage immediately.
【０００３】この困難を解決するために、特開平２−２
９４３８１は、（１）界面活性剤、（２）親水性糊剤、
（３）水不溶性粉状物、及び（４）水、からなる雨漏り
防止剤を提供している。この技術によれば、雨中でも極
めて簡単な操作で即効的に雨漏りを阻止できる。しか
し、この技術では漏水部位が０．５mm以上のひび割れ貫
通部分に対しては効果がなく等の問題がある。In order to solve this difficulty, Japanese Patent Laid-Open No.
94381 includes (1) a surfactant, (2) a hydrophilic paste,
The present invention provides a rain leak preventive comprising (3) a water-insoluble powder and (4) water. According to this technique, even in the rain, it is possible to prevent rain leaks immediately with an extremely simple operation. However, this technique has no effect on a crack penetrating portion having a water leaking portion of 0.5 mm or more, and has a problem that there is no effect.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、ひび割れ隙
間が大きい貫通クラックの表層の上から塗布したときに
亀裂部から流れ出ことなく、亀裂内閉塞物質の接着力が
強く、再びクラックを生じることのない亀裂内閉塞性の
改善された、しかも簡単な施工で即効的にコンクリー
ト、モルタル成形物の雨漏りを阻止する組成物を提供し
ようとするものである。SUMMARY OF THE INVENTION According to the present invention, when applied from the surface of a through-crack having a large crack gap, it does not flow out of the crack portion, the adhesive force of the plugging substance in the crack is strong, and the crack is generated again. It is an object of the present invention to provide a composition which is free from cracks and which can prevent the concrete and mortar molded product from leaking quickly with improved clogging in cracks and simple construction.
【０００５】[0005]
【課題を解決するための手段】本発明者らは、前記目的
を達成するため鋭意研究の結果本発明を完成させた。即
ち、本発明は（１）シリカゾル、高炉水砕スラグ、カル
シウム凝集性水溶性ポリマー、高級脂肪酸ナトリウム、
水及び硬化剤刺激剤を含有することを特徴とする漏水阻
止組成物、（２）硬化刺激剤がアルカリ金属の水酸化
物、炭酸塩及びケイ酸塩から選ばれる１種以上である上
記（１）記載の漏水阻止組成物、（３）上記（１）また
は（２）記載の漏水阻止組成物を混練し、建造物の漏水
部分に注入することによりクラックを閉塞することを特
徴とする建造物のひび割れ補修方法、（４）予め建造物
の漏水部位に硬化刺激剤を注入し、硬化刺激剤以外の上
記（１）または（２）記載の漏水阻止組成物成分を混
合、混練した混練物を注入することによりクラックを閉
塞することを特徴とする建造物のひび割れ補修方法に関
する。Means for Solving the Problems The present inventors have made intensive studies to achieve the above object and completed the present invention. That is, the present invention relates to (1) silica sol, granulated blast furnace slag, calcium-aggregating water-soluble polymer, higher fatty acid sodium,
(2) The composition according to the above (1), wherein the curing stimulant is at least one selected from hydroxides, carbonates and silicates of alkali metals. (3) a building, characterized in that cracks are closed by kneading the water leakage preventing composition according to the above (1) or (2) and injecting the kneaded mixture into a water leaking part of the building. (4) A kneaded product obtained by injecting a hardening stimulant into a water leakage site of a building in advance and mixing and kneading the components of the water leakage preventing composition according to (1) or (2) other than the hardening stimulant. The present invention relates to a method for repairing a crack in a building, characterized in that a crack is closed by injection.
【０００６】[0006]
【発明の実施の形態】本発明で使用するシリカゾルと
は、無水珪酸の水分散液であって、通常無水珪酸を２０
〜４５重量％含有する透明ないし白濁した安定な液体と
して市販されている。用いうるシリカゾルの具体例とし
ては、スノーテックス３０（日産化学工業（株）製）等
が挙げられる。シリカゾルの配合割合は特に限定されな
いが、本発明の組成物中で、無水珪酸として通常０．１
〜２０重量％を占める量を使用する。BEST MODE FOR CARRYING OUT THE INVENTION The silica sol used in the present invention is an aqueous dispersion of silicic anhydride.
It is commercially available as a clear to cloudy stable liquid containing .about.45% by weight. Specific examples of the silica sol that can be used include Snowtex 30 (manufactured by Nissan Chemical Industries, Ltd.). The mixing ratio of the silica sol is not particularly limited, but is usually 0.1% as silicic anhydride in the composition of the present invention.
An amount occupying 〜20% by weight is used.
【０００７】本発明の組成物において、高炉水砕スラグ
は通常ブレーン比表面積が３，０００〜１５，０００cm
2 /g、好ましくは４，０００〜１５，００cm2 /gのもの
が用いられる。高炉水砕スラグの配合割合は特に限定さ
れないが、本発明の組成物中で通常５〜６０重量％を占
める量を使用する。In the composition of the present invention, granulated blast furnace slag usually has a Blaine specific surface area of 3,000 to 15,000 cm.
2 / g, preferably 4,000 to 15,000 cm 2 / g is used. The mixing ratio of the granulated blast furnace slag is not particularly limited, but is usually 5 to 60% by weight in the composition of the present invention.
【０００８】カルシウム凝集性水溶性ポリマーとは、そ
の水溶液がカルシウムイオン含有水溶液と接触すると不
溶性ゲルに凝集する性質を有する水溶性ポリマーであ
る。用いうるカルシウム凝集性水溶性ポリマーの具体例
としては、ポリアクリル酸ナトリウム、アルギン酸ナト
リウム、ペクチンなどをあげられ、ポリアクリル酸ナト
リウムが好ましい。カルシウム凝集性水溶性ポリマーの
配合割合は特に限定されないが、本発明の組成物中で、
通常０．０１〜５重量％を占める量を使用する。[0008] The calcium-aggregating water-soluble polymer is a water-soluble polymer having a property of being aggregated into an insoluble gel when the aqueous solution contacts an aqueous solution containing calcium ions. Specific examples of the calcium-aggregating water-soluble polymer that can be used include sodium polyacrylate, sodium alginate, pectin and the like, and sodium polyacrylate is preferable. The mixing ratio of the calcium-aggregating water-soluble polymer is not particularly limited, but in the composition of the present invention,
Usually, an amount occupying 0.01 to 5% by weight is used.
【０００９】高級脂肪酸ナトリウムとしては、炭素数１
２ないし１８の脂肪酸のナトリウムが使用でき、その用
いうる具体例としては、ラウリン酸、ミリスチン酸、パ
ルミチン酸、ステアリン酸等のナトリウム塩が挙げられ
る。これらは混合物であってもよく、通常、粉末石鹸と
して市販されているものが便利に使用できる。高級脂肪
酸ナトリウムの配合割合は特に限定されないが、本発明
の組成物の中で、通常重量に対して、０．１〜１０重量
％を占める量を使用する。As the higher fatty acid sodium, one having 1 carbon atom
Sodium salts of 2 to 18 fatty acids can be used, and specific examples thereof include sodium salts such as lauric acid, myristic acid, palmitic acid, and stearic acid. These may be a mixture, and usually those commercially available as powdered soaps can be conveniently used. The blending ratio of the higher fatty acid sodium is not particularly limited, but an amount occupying 0.1 to 10% by weight based on the normal weight in the composition of the present invention is used.
【００１０】本発明の組成物は、水または水に必要によ
りメタノール、エタノール等の水溶性溶媒を添加した混
合溶媒を用いてもよい。水の使用量は、本発明の組成物
中で、通常１０〜５０重量％、好ましくは１５〜３０重
量％を占める量を用いいる。水は、シリカゾルに含有さ
れている量、及び下記するように本発明の漏水阻止組成
物を製造する際に予め上記各成分を溶解または懸濁する
ために用いた量も加えた量が上記使用量となるよう使用
する。The composition of the present invention may use water or a mixed solvent obtained by adding a water-soluble solvent such as methanol or ethanol to water if necessary. The amount of water used is usually 10 to 50% by weight, preferably 15 to 30% by weight in the composition of the present invention. The amount of water used is the amount contained in the silica sol, and the amount obtained by adding the amount previously used for dissolving or suspending each of the above components when producing the water leakage prevention composition of the present invention as described below. Use to make quantity.
【００１１】本発明の組成物は、ｐＨをアルカリ性に調
節することが望ましく、通常硬化刺激剤としてアルカリ
性物質を使用する。用いうるアルカリ性物質の具体例と
しては、水酸化ナトリウム、水酸化カリウム等のアルカ
リ金属の酸化物、炭酸ナトリウム、炭酸カリウム等のア
ルカリ金属の炭酸塩、メタケイ酸ナトリウム、オルソケ
イ酸ナトリウム等のアルカリ金属のケイ酸塩が挙げら
れ、中でも水酸化ナトリウムが好ましい。硬化剤刺激剤
の使用量は、高炉スラグに対して概ね０．１〜１０重量
部、好ましくは０．５〜５重量部である。In the composition of the present invention, it is desirable to adjust the pH to alkaline, and usually an alkaline substance is used as a curing stimulant. Specific examples of the alkaline substance that can be used include oxides of alkali metals such as sodium hydroxide and potassium hydroxide, carbonates of alkali metals such as sodium carbonate and potassium carbonate, sodium metasilicate and alkali metal such as sodium orthosilicate. Silicates are preferred, with sodium hydroxide being preferred. The amount of the hardener stimulant used is generally 0.1 to 10 parts by weight, preferably 0.5 to 5 parts by weight, based on the blast furnace slag.
【００１２】次に、本発明に用いる漏水阻止剤の製造方
法に関して述べる。本発明の漏水阻止組成物は、前記各
成分を所定の割合で好ましくは、それぞれを水に溶解ま
たは懸濁せしめて均一に混合して得ることができる。具
体的には、まず所定量の高炉水砕スラグ、シリカゾル、
カルシウム凝集性水溶性ポリマー、高級脂肪酸ナトリウ
ム、水を混合機に計り込み混練する。混練機は揺動型の
オムニミキサーやプラネタリーミキサー、アイリッヒ型
の混練機が使用できる。本発明の組成物は、このように
して得られたペースト状または粘土状の混練物にアルカ
リ刺激剤水溶液を使用直前に混合して得ることができ
る。混合は単純なプロペラ型の攪拌機で攪拌するだけで
均一な漏水阻止組成物に仕上がる。Next, a method for producing the water leakage inhibitor used in the present invention will be described. The water leakage prevention composition of the present invention can be obtained by preferably dissolving or suspending each of the above components in water at a predetermined ratio and uniformly mixing the components. Specifically, first, a predetermined amount of granulated blast furnace slag, silica sol,
The calcium-coagulable water-soluble polymer, higher fatty acid sodium, and water are measured and kneaded in a mixer. As the kneader, an oscillating omni mixer, a planetary mixer or an Erich-type kneader can be used. The composition of the present invention can be obtained by mixing the paste or clay-like kneaded material thus obtained with an aqueous alkali stimulant solution immediately before use. The mixing can be completed by a simple propeller-type stirrer into a uniform water leakage preventing composition.
【００１３】以下、本発明の補修方法について説明す
る。本発明の補修方法においては、コンクリート、モル
タル建造物の亀裂部位に本発明の漏水阻止組成物を注入
する。注入する方法としては、自然にしみ込ます方法、
または流し込み方法、擦り込み塗装方式及びコーキング
ガン等を用いて加圧下に注入する圧入方法等が採用でき
る。この場合、予め水で注入箇所を濡らすしておくこと
が好ましい。Hereinafter, the repair method of the present invention will be described. In the repair method of the present invention, the water leakage prevention composition of the present invention is injected into a crack portion of a concrete or mortar building. As a method of injecting, a method of soaking naturally,
Alternatively, a pouring method, a rub coating method, a press-fitting method of injecting under pressure using a caulking gun or the like can be adopted. In this case, it is preferable to wet the injection site with water in advance.
【００１４】また、建造物の亀裂部位に予め所定量の硬
化剤剤水溶液を前記のようにして注入しておき、これに
硬化刺激剤以外の本発明の組成物の成分を混合、混練し
たものを注入してもよい。こうして、補修された亀裂部
位はそのままで通常２４〜４８時間で完全に硬化し、漏
水が防止できる。Further, a predetermined amount of an aqueous solution of a curing agent is previously injected into a crack site of a building as described above, and the components of the composition of the present invention other than the curing stimulant are mixed and kneaded. May be injected. In this way, the repaired crack portion is completely cured normally in 24 to 48 hours as it is, and water leakage can be prevented.
【００１５】本発明の組成物はコンクリートの漏水を防
ぐのに特に効果的である。本発明の組成物が建造物の亀
裂部位に到達すると有効な漏水阻止作用を現すのは次の
ような理由によると考えられる。もちろん、本発明はこ
のような理由付けによって何ら拘束されるものではな
い。シリカゾルは本発明の組成物中では極めて安定なコ
ロイド状態を保っているが、本発明の組成物が亀裂部表
層の隙間を通過して建造物の亀裂部位に達すると、建造
物の表面塩基度によって凝固現象を起こす。このとき組
成物中のカルシウム凝集性水溶性ポリマーはコンクリー
ト表面のカルシウム成分と反応して水不溶性の凝集物を
生成し、凝固析出したシリカゲル粒子を包み込んでコン
クリートの亀裂部位に密着し、それを充填する。そし
て、補修された部分は、水に不溶性物質であるので微細
な亀裂の中に一旦生成すれば、後からの水の侵入を長期
にわたって阻止することができる。また、高級脂肪酸ナ
トリウムは界面活性効果によって組成物の浸透性を改善
すると共に、コンクリート表面に配向して撥水層を形成
する。これによって、漏水阻止効果はさらに確実なもの
となる。高炉水砕スラグは硬化刺激剤の添加によって、
硬化し、極めて安定なゲルを形成し、建造物の貫通クラ
ック、特に１mm以上のクラックの部位で強固に接着し補
修できる。The compositions of the present invention are particularly effective in preventing concrete leakage. It is considered that the composition of the present invention exhibits an effective water leakage prevention action when it reaches the crack site of a building for the following reasons. Of course, the present invention is not bound at all by such reasoning. Although the silica sol keeps a very stable colloidal state in the composition of the present invention, when the composition of the present invention passes through the gap between the surface layers of the crack and reaches the crack site of the building, the surface basicity of the building is reduced. This causes a coagulation phenomenon. At this time, the calcium-aggregating water-soluble polymer in the composition reacts with the calcium component on the concrete surface to form water-insoluble aggregates, wraps the coagulated and precipitated silica gel particles, adheres closely to the cracks in the concrete, and fills it. I do. Since the repaired portion is a substance insoluble in water, once it is formed in a fine crack, it is possible to prevent water from entering later for a long time. In addition, the higher fatty acid sodium improves the permeability of the composition by a surfactant effect, and is oriented on the concrete surface to form a water-repellent layer. Thereby, the water leakage preventing effect is further ensured. Granulated blast furnace slag is obtained by adding a hardening stimulant.
It cures to form an extremely stable gel, and can be firmly adhered and repaired at penetration cracks in buildings, especially cracks of 1 mm or more.
【００１６】[0016]
【実施例】以下、本発明を実施例で更に詳細に説明する
が、本発明はこれらに限定されるものではない。EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited thereto.
【００１７】実施例１〜２ オムニミキサーに高炉水砕スラグ、シリカゾル、カルシ
ウム凝集性ポリマー、高級脂肪酸ナトリウム、水を表１
記載の量（重量部）計り込み、混合を２０分行いペース
ト状の組成物を得た。このペースト状組成物は、室温に
６カ月間放置したが安定であった。Examples 1 and 2 Granulated blast furnace slag, silica sol, calcium coagulable polymer, higher fatty acid sodium and water were mixed in an omni mixer.
The stated amount (parts by weight) was measured and mixed for 20 minutes to obtain a paste-like composition. This paste-like composition was stable when left at room temperature for 6 months.
【００１８】次いで、得られたペースト状組成物に表１
に記載の量（重量部）の水酸化ナトリウム水溶液を混
合、混練し本発明の漏水防止組成物を得た。Next, Table 1 was added to the obtained paste-like composition.
Was mixed and kneaded to obtain a water leakage prevention composition of the present invention.
【００１９】[0019]
【表１】 表１ 実施例１ 実施例４ 高炉水砕スラグ 60(A) 30(B) シリカゾル 10 20 カルシウム凝集性水溶性ポリマー 1 1 高級脂肪酸ナトリウム 2 2 水 15 20 水酸化ナトリウム（３重量％水溶液） 1 1 （注）(A) ：比表面積６０００cm2 /gの高炉水砕スラグ (B) ：比表面積１００００cm2 /gの高炉水砕スラグ カルシウム凝集性水溶性ポリマー：ポリアクリル酸ナトリウム （日本化薬株式会社製パナカヤク） シリカゾル：（日産化学工業株式会社製スノーテックス３０） 高級脂肪酸ナトリウム：市販粉末粉石鹸（ミヨシ石鹸株式会社そよ風）Table 1 Example 1 Example 1 Example 4 Granulated blast furnace slag 60 (A) 30 (B) Silica sol 10 20 Calcium coagulable water-soluble polymer 1 1 Sodium higher fatty acid 2 2 Water 15 20 Sodium hydroxide (3% by weight) aqueous solution) 1 1 (Note) (a): water-granulated blast furnace slag having a specific surface area of 6000 cm 2 / g (B): a specific surface area of 10000 cm 2 / g of the granulated blast furnace slag calcium cohesion water soluble polymer: sodium polyacrylate (Japan Silica sol: (Snowtex 30 manufactured by Nissan Chemical Industries, Ltd.) Higher fatty acid sodium: commercial powdered soap (Miyoshi Soap Co., Ltd. Soyokaze)
【００２０】比較例Ａ、Ｂ 特開平２−２９４３８１の記載に従い、表２に記載の成
分からなる組成物を調製した。Comparative Examples A and B In accordance with the description in JP-A-2-294381, compositions comprising the components shown in Table 2 were prepared.
【００２１】[0021]
【表２】 表２ 比較例Ａ 比較例Ｂ 界面活性剤粉末石鹸（ミヨシ油脂製） 30g 30g 親水性糊剤パナカヤク（日本化薬製） 30g 30g 水性ニス（アサヒペン製） 20g 20g 酢酸ビニル樹脂（セメダイン製） 20g 20g 水不溶性粉状物 木粉 (50〜400 メッシュ） 100g 30g 粘土 (市販品) 30g 100g 高吸水性ポリマーアクアリックＣＡ 10g 10g Type KI （日本触媒製） 水（水道水） 4800g 4800g Table 2 Comparative Example A Comparative Example B Surfactant powdered soap (made by Miyoshi Oil & Fat) 30g 30g Hydrophilic glue Panakayak (made by Nippon Kayaku) 30g 30g Water-based varnish (made by Asahipen) 20g 20g Vinyl acetate resin (cemedine) 20g 20g Water-insoluble powder Wood powder (50-400 mesh) 100g 30g Clay (commercially available) 30g 100g Super absorbent polymer Aqualic CA 10g 10g Type KI (Nippon Shokubai) Water (tap water) 4800g 4800g
【００２２】この組成物は、比較例Ａ、Ｂ共６カ月間放
置したところ、泥状の沈降物を認めた。When this composition was left for 6 months in Comparative Examples A and B, a muddy sediment was observed.
【００２３】実施例３〜４、比較例１〜２ セメント１対砂２（重量比）の混合物を硬化させ、内径
４０mm、内高３０mm、厚み１０mmのカップを成形した。
このカップを縦に半分にカッターで切断し、内高部に
０．５mmの両面テープを貼ったうえで、再び合わせ、周
をビニールテープで巻いて固定し、試験カップとした。
この試験カップに２０mlの水を注加すると水は５秒以内
に流出した。６個の試験カップを水中に２０分間浸漬し
た後、取り出し、濡れたままそれぞれ実施例１、２及び
比較例Ａ、Ｂで得られた混練物または組成物を１０mlづ
つ加えて１時間放置した。なお、実施例１及び２の混練
物はペースト状なので、更に接合部分に擦り込むように
塗布した。しばらく放置すると実施例１及び２の混練物
を使用したもの（実施例３〜４）は混練物が流出しなか
ったが、比較例Ａ及びＢの組成物を使用したもの（比較
例１〜２）はほとんど全量流出した。次いで、６個の試
験カップに残留する内容物を流し捨て、濡れた状態のま
まそれぞれの試験カップに水２０mlを加えて放置したと
ころ比較例Ａ及びＢで処理したカップは直ちに漏水し、
全量の水が３０秒以内に流出した。実施例１、２では１
昼夜放置しても漏水しなかった。Examples 3 and 4, Comparative Examples 1 and 2 A mixture of cement and sand 2 (weight ratio) was cured to form a cup having an inner diameter of 40 mm, an inner height of 30 mm and a thickness of 10 mm.
The cup was cut in half vertically with a cutter, a 0.5 mm double-sided tape was stuck on the inner high part, and the cups were rejoined, and the circumference was fixed with vinyl tape and fixed to obtain a test cup.
When 20 ml of water was poured into the test cup, the water flowed out within 5 seconds. After the six test cups were immersed in water for 20 minutes, they were taken out and wet and the kneaded materials or compositions obtained in Examples 1 and 2 and Comparative Examples A and B were added in 10 ml portions and left for 1 hour. Since the kneaded materials of Examples 1 and 2 were in the form of a paste, they were further applied so as to be rubbed into the joints. When the kneaded materials of Examples 1 and 2 were used after being left for a while (Examples 3 and 4), the kneaded material did not flow out, but those using the compositions of Comparative Examples A and B (Comparative Examples 1 and 2) ) Almost completely spilled. Next, the contents remaining in the six test cups were poured away, and 20 ml of water was added to each test cup in a wet state, and the cups treated with Comparative Examples A and B immediately leaked water.
All of the water flowed out within 30 seconds. In Examples 1 and 2, 1
It did not leak even if left overnight.
【００２４】実施例５〜６ 実施例３〜４と同様のカップを用いて、縦に半分にカッ
ターで切断した上でこの２枚の片側の一端を接触させ、
もう一端は３mmの幅をあけ、内高部分に目地剤を貼り、
外周をビニールテープで巻いて固定し、試験カップとし
た。この試験カップに２０mlの水を注加すると水は１秒
以内に流出した。２個の試験カップを水中に２０分間浸
漬した後、取り出し、風乾し、亀裂部位に３重量％の水
酸化ナトリウム水溶液を注入し、それぞれ実施例１、２
の組成物を１０mlづつ加えて、特に亀裂部位はていねい
に擦り込み、２個の試験カップに残留する内容物を流し
捨てた。試験カップを１時間放置したが組成物は流出し
なかった。次いで、濡れた状態のままそれぞれの試験カ
ップに水２０mlを加えて放置したが、どちらも１昼夜放
置しても漏水しなかった。Examples 5-6 Using the same cups as in Examples 3-4, cut vertically in half with a cutter, and then contact one end of one side of the two sheets.
The other end has a width of 3 mm, and a jointing agent is applied to the inner height,
A test cup was formed by wrapping and fixing the outer periphery with vinyl tape. When 20 ml of water was poured into the test cup, the water flowed out within 1 second. After the two test cups were immersed in water for 20 minutes, they were taken out, air-dried, and a 3% by weight aqueous solution of sodium hydroxide was injected into the crack site.
Was added to each of the test cups, and especially the crack site was carefully rubbed, and the contents remaining in the two test cups were poured away. The test cup was left for 1 hour but no composition flowed out. Next, 20 ml of water was added to each test cup in a wet state, and the test cups were allowed to stand.
【００２５】[0025]
【発明の効果】本発明の漏水阻止組成物は安価で、施工
が容易であり、建造物の美観を損ねることなく、確実に
漏水を阻止することが出来る。従って、従来のような足
場を組んで補修するとか、全面葺き替工事が不要であ
り、経済的に極めて有利である。本発明の漏水阻止組成
物は特にコンクリート、モルタル建造物への接着性が優
れ、高強度で耐久性、耐水性、凍害性に優れる硬化体を
与える。また、本発明の補修方法は、建造物の漏水部分
に充填、注入するだけで、ひび割れ部分を補修、閉塞で
きる。The composition for preventing water leakage according to the present invention is inexpensive, easy to construct, and can surely prevent water leakage without impairing the appearance of a building. Therefore, it is not necessary to perform repairs by assembling a scaffold as in the related art or to completely replace the roof, which is extremely economically advantageous. The water leakage prevention composition of the present invention provides a cured product having excellent adhesion to concrete and mortar structures, high strength, excellent durability, water resistance and frost damage. Further, the repair method of the present invention can repair and close a cracked portion simply by filling and injecting a leaked portion of a building.
Claims (4)
凝集性水溶性ポリマー、高級脂肪酸ナトリウム、水及び
硬化剤刺激剤を含有することを特徴とする漏水阻止組成
物。1. A water leakage preventing composition comprising silica sol, granulated blast furnace slag, a calcium-aggregating water-soluble polymer, higher fatty acid sodium, water and a hardener stimulant.
酸塩及びケイ酸塩から選ばれる１種以上である請求項１
記載の漏水阻止組成物。2. The curing stimulant is at least one selected from hydroxides, carbonates and silicates of alkali metals.
The composition for preventing water leakage according to the above.
混練し、建造物の漏水部分に注入することによりクラッ
クを閉塞することを特徴とする建造物のひび割れ補修方
法。3. A method for repairing a crack in a building, comprising kneading the water leakage preventing composition according to claim 1 or 2 and injecting the mixture into a water leaking portion of the building to close a crack.
し、硬化刺激剤以外の請求項１または２記載の漏水阻止
組成物成分を混合、混練した混練物を注入することによ
りクラックを閉塞することを特徴とする建造物のひび割
れ補修方法。4. A crack is formed by injecting a hardening stimulant into a water leakage site of a building in advance and mixing and kneading the water leakage inhibiting composition component according to claim 1 other than the hardening stimulant. A method for repairing a crack in a building, characterized by closing the building.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8999497A JPH10265256A (en) | 1997-03-26 | 1997-03-26 | Preventing composition of water leakage and crack repairing of building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8999497A JPH10265256A (en) | 1997-03-26 | 1997-03-26 | Preventing composition of water leakage and crack repairing of building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10265256A true JPH10265256A (en) | 1998-10-06 |
Family
ID=13986175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8999497A Pending JPH10265256A (en) | 1997-03-26 | 1997-03-26 | Preventing composition of water leakage and crack repairing of building |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10265256A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006322267A (en) * | 2005-05-20 | 2006-11-30 | Asuton:Kk | Repair method for concrete |
| JP2009286661A (en) * | 2008-05-29 | 2009-12-10 | Shigeaki Rokugo | Repairing method for crack in cement-based structure |
| KR101224506B1 (en) * | 2012-07-14 | 2013-01-21 | 주식회사 하람산업 | Method for construction and repairing of soil panel |
| CN104119028A (en) * | 2014-06-25 | 2014-10-29 | 芜湖市三兴混凝土外加剂有限公司 | Anti-cracking and anti-seepage multifunctional reinforcing agent |
| JP2014218410A (en) * | 2013-05-10 | 2014-11-20 | 日油株式会社 | Premix cement composition |
| JP2018002515A (en) * | 2016-06-29 | 2018-01-11 | 株式会社エイケン | Freeze-thaw preventing reinforcement agent and oil solidification mortar construction method |
| CN113767082A (en) * | 2019-05-29 | 2021-12-07 | Sika技术股份公司 | Non-invasive repair and modification of hardened cement-based materials |
-
1997
- 1997-03-26 JP JP8999497A patent/JPH10265256A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006322267A (en) * | 2005-05-20 | 2006-11-30 | Asuton:Kk | Repair method for concrete |
| JP4515328B2 (en) * | 2005-05-20 | 2010-07-28 | 株式会社アストン | Concrete repair method |
| JP2009286661A (en) * | 2008-05-29 | 2009-12-10 | Shigeaki Rokugo | Repairing method for crack in cement-based structure |
| KR101224506B1 (en) * | 2012-07-14 | 2013-01-21 | 주식회사 하람산업 | Method for construction and repairing of soil panel |
| JP2014218410A (en) * | 2013-05-10 | 2014-11-20 | 日油株式会社 | Premix cement composition |
| CN104119028A (en) * | 2014-06-25 | 2014-10-29 | 芜湖市三兴混凝土外加剂有限公司 | Anti-cracking and anti-seepage multifunctional reinforcing agent |
| JP2018002515A (en) * | 2016-06-29 | 2018-01-11 | 株式会社エイケン | Freeze-thaw preventing reinforcement agent and oil solidification mortar construction method |
| CN113767082A (en) * | 2019-05-29 | 2021-12-07 | Sika技术股份公司 | Non-invasive repair and modification of hardened cement-based materials |
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