JP2004256350A - Water-based penetrating composition and method of reinforcing surface of concrete - Google Patents
Water-based penetrating composition and method of reinforcing surface of concrete Download PDFInfo
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- JP2004256350A JP2004256350A JP2003048399A JP2003048399A JP2004256350A JP 2004256350 A JP2004256350 A JP 2004256350A JP 2003048399 A JP2003048399 A JP 2003048399A JP 2003048399 A JP2003048399 A JP 2003048399A JP 2004256350 A JP2004256350 A JP 2004256350A
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- 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
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- 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
- C04B41/5076—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 masses bonded by inorganic cements
- C04B41/5089—Silica sols, alkyl, ammonium or alkali metal silicate cements
-
- 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
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
-
- 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
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
Abstract
Description
【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、コンクリートブロツク等の表面の強化用に使用される水性浸透性組成物とコンクリートの表面強化方法に関するものである。
【０００２】
【特許文献１】特開２００２−３３８３７５号
【特許文献２】特開２００１−２０７１１８号
【０００３】
【従来の技術】
コンクリート、モルタル、コンクリートブロックなどからなる床などは、荷重、化学薬品により侵食、摩擦による磨耗などにより経時的に劣化が避けられない。
また、近年、コンクリートの打ち込み作業にボンプ車が広く使用される状況になっている。ポンプ車によるコンクリートの打設は施工を簡便にするものの、より打ち込みやすくするために水の配合を増やした軟練り状態での打設がなされやすい。水の配合が所定量より多くなるとコンクリートの乾燥収縮を大きくするため亀裂の原因になりやすく、その結果、空気や雨水が浸透する。また、水の配合が所定量より多いと水が気散した後に気泡が残り空気や雨水の浸透する。更に、コンクリート構造物は基礎部分は地中にあつてほぼ１５℃程度であるのに対して、屋上ないし屋外は夏季の日射、冬季の冷輻射という大きな温度サイクルにさらされるため亀裂が生じている。このような亀裂や気泡を介して雨水や空気がコンクリート中に浸透するとアルカリ成分が炭酸ガスと反応して中性化が進行するため、「鉄筋が錆びて膨張するためにコンクリートを破壊して強度が低下する」、「雨水が浸透して鉄筋の錆び、腐食が更に進行する」、「ひび割れのために構造体の一部が脱落して外観が損なわれる」などの問題がつきまとつていた。
【０００４】
このような劣化や中性化を回避する方法として、エポキシ樹脂、ウレタン樹脂、アクリル樹脂などにより表面被覆する方法が図られてきた。しかし、このような表面強化では高分子物質であるためにコンクリート、モルタルなどへの浸透性が不足するほか、構造体の表面をコーテイング処理しても、塗膜の劣化や剥離、フクレなどの課題がある。
【０００５】
一方では、水ガラスなど珪酸塩によるコンクリート表面強化が知られている。水ガラスなど珪酸塩はコンクリート、モルタルなどへの浸透性に優れるものの、珪素とアルカリのモル比が４以下の珪酸塩を原料としているためアルカリ性が強く、コンクリート中の空隙に留まつた場合にはアルカリ骨材反応によりひび割れが発生する、溜まり水のアルカリが高いためにコンクリートの炭酸化速度が速くなり中性化を促進するという懸念がある。
さらに、水ガラスなど珪酸塩のカルシウムとの反応が不十分な状態で水がかかると、撥水性もないことから溶出してしまうという問題や、遅効性で効果が得られるまでに時間を要する、セメントのアルカリ成分（水酸化カルシウムなど）と化合して保護層を形成させるものであるために水酸化カルシウムが消失してしまった古いコンクリートでは効果が得られないなどの課題があつた。
【０００６】
また珪弗化マグネシウム、硅弗化亜鉛などの珪弗化化合物を使用する方法も採用されることがあつたが、弗素化合物のために毒性がある、環境汚染の原因になる、腐食性があるなどの問題があつた。また、硅弗化化合物は前記珪酸塩と同様な理由で古いコンクリートには効果が得られにくいという問題があつた。
【０００７】
【発明が解決しようとする課題】
このような従来の問題、即ち、コンクリート、モルタルなどへの浸透性に優れ、かつ、中性化と劣化を防止するとともに、水がかかっても溶出しないなどの改良点をクリヤーした水性浸透性組成物とコンクリートの表面強化方法を提供するものである。
【０００８】
【課題を解決するための手段】
本発明においては、前記のような課題を解決するために開発された珪酸ソーダとメチルケイ酸カリウムとからなる水性浸透性組成物とコンクリートの表面強化方法に関するものであつて、以下詳細に説明する。
【０００９】
本発明に採用される珪酸ソーダはＮａ２〇・ｘＳｉ〇で表されるもので、モル比、Ｓｉ〇２／ＮＡ２Ｏが２／１〜１／４のものが挙げられる。
珪酸ソーダはコンクリート、モルタルなどのセメント中のＣａ、Ｍｇ、Ａｌ、Ｂａなど多価金属イオンと反応して不溶性の珪酸塩金属水和物、金属水酸化物などを形成して、コンクリート、モルタルなどの内部の空隙を充填させ、強度を向上させることができる。
【００１０】
メチルケイ酸カリウムはメチルケイ酸カリウムＣＨ３Ｓｉ（ＯＨ）２ＯＫを水に溶解した５４重量％程度の水溶液として使用され、メチルケイ酸ポリマーとして３４重量％程度を含有するものとして利用される。メチルケイ酸カリウムは空気中の炭酸ガスと反応してポリメチルシリケート（ＣＨ３ＳｉＯ３／２）が形成され、撥水性が得られる。
【００１１】
珪酸ソーダとメチルケイ酸カリウムとの配合割合は１００／１〜１００／２０が適合している。１００／１以下では撥水性が不十分のため好ましくない。一方１００／２０以上ではハジキが顕著になるため好ましくない。
また、濃度は５〜４０重量％が適している。５重量％以下ではコンクリート、モルタルなどへの浸透は良好であつても、本来の目的である強化の効果が期待できない。また、４０重量％以上では濃度が高すぎるためコンクリート、モルタルなどへの浸透性が不足する傾向が認められ好ましくない。
【００１２】
その他、必要により着色用として、各種顔料、例えば公知の酸化チタン、カーボンブラツク、酸化クロム、郡青等の無機質顔料、アゾ顔料、縮合多還式顔料、キナクリドン系顔料、シアニンブルー、シアニングリーン等の有機顔料若しくは公知の有機系着色化合物、インキ、天然若しくは合成の染料等を単独若しくは２種類以上を使用して希望する色相を付与することができる。
【００１３】
このような配合材を調合された水性浸透性組成物は、コンクリート、モルタルなどの表面に刷毛、ローラー刷毛、モツプ、スプーレー等の塗布手段により０．１〜０．５ｋｇ／ｍ２塗布され、これらの強化が図られる。
また、塗布は１回塗布より複数回の塗布されてコンクリート、モルタルなどへの浸透が図られることが好ましい。
【００１４】
床などコンクリート、モルタルなどから仕上られた構造物は該水性浸透性組成物が塗布処理して強化処理した状態で利用されるか、或いは更に樹脂防水層、繊維強化樹脂層などが施工されて防水床、駐車場床、工場或いは倉庫の床などに表面強化された状態として利用することができる。
【００１５】
以下、本発明に関して実施例、比較例に従って詳細に説明する。配合比率は重量部を単に部として記載する。なお、本願発明は是に限定されるものではない。
【００１６】
実施例１
３号水ガラス（固形分５０％）５０部とメチルケイ酸カリウム水溶液（固形分５０％）３部、水４７部とからなる濃度２６．５％水性浸透性組成物を打設後３０日後のコンクリート表面に０．３ｋｇ／ｍ２刷毛で塗布した。塗布後１０日養生したもの（水洗無）と、１日養生後に水中に１時間浸漬し水洗（水洗有）してから９日養生したものについて下記に記載する評価試験をした結果は表１の通りであつた。
【００１７】
実施例２
実施例１において、メチルケイ酸カリウム水溶液を８部、水を４２部とした以外は全て実施例１と同一にして、評価試験した結果は表１の通りであつた。
【００１８】
実施例３
実施例１において、３号水ガラスを３０部、水を６７部とした以外は全て実施例１ど同一にして評価試験をした結果は表１の通りであつた。
【００１９】
比較例１
３号水ガラス５０部、水５０部を調合して濃度２５％の水性浸透性組成物を調製し、実施例１と同様に評価試験した結果は表１の通りであつた。
【００２０】
比較例２
３号水ガラス３０部、水７０部を調合した濃度１５％の水性浸透性組成物を調製した。実施例１と同様に評価試験した結果は表１の通りであつた。
【００２１】
比較例３
打設後３０日養生したコンクリートを比較例３とした。
【００２２】
【表１】
評価方法
撥水性／水１０ミリリッターを散布して、撥水状態を観察する。
透水性／ＪＩＳＡ６９０９のＢ法（２４時間）により測定する。
試験体を水平に保持し、ロート状の透水試験器具をシリコーンシーリーング材により止めつけ、４８時間以上放置したのち、２０±２℃の水を試験体の表面から高さ２５０ｍｍまで入れ、その時の水頭の高さと２４時間後の水頭の高さとの差を求める。
中性化／５％の炭酸ガスを含む雰囲気に、２０℃、６０％ＲＨの環境において３０日放置したのち、表面の中性化を下記の道路公団規格（ＪＨＳ３１１−１９９２）により測定する。
道路公団規格（ＪＨＳ３１１−１９９２）
コンクリートコアの割裂面を測定面として使用し、▲１▼測定面にフェノールフタレン１％エタノール溶液を噴霧する。▲２▼着色及び非着色部分の境界をマジックで記入する。含水率が高いコンクリートの場合は読み取りを２日後に行う。▲３▼表面から中性化深さの最大および最小を測定する。▲４▼境界を透明なビニールシートにトレースする。▲５▼非着色部分の面積を測定する。
計算
Ｃ＝ Ａ／Ｌ
Ｃ： 平均中性化深さ ｍｍ
Ａ： 非着色部分の面積 ｍｍ２
Ｌ： 測定表面の長さ ｍｍ
耐磨耗性／ＪＩＳＫ７２０４に規定の測定法による。磨耗輪Ｈ２２、荷重１ｋｇ、１０００回転の条件における磨耗重量を測定する。
【００２４】
【発明の効果】
本発明になる水性浸透性組成物は、珪酸ソーダ並びにメチルケイ酸カリウムとを含有するもので、コンクリートに対して速やかに浸透し、珪酸ソーダがコンクリート中のＣａ、Ｍｇなど多価金属化合物と反応して珪酸塩を形成して空隙を充填するとともに、メチルケイ酸カリウムが空気中の炭酸ガスと反応してポリシリケートが形成する。このためコンクリートの空隙充填効果と撥水性が得られるとともに透水性が低くなるため、構造物の防水性を大幅に向上させることができる。
また、コンクリート表面が強化されて耐磨耗性などが大幅に向上する。前記実施例、比較例で確認されるように、従来の水ガラスにより表面処理されたコンクリートが雨水等により水洗された場合、耐磨耗性が大幅に低下するが、本発明の水性浸透性処理剤により処理した場合には、雨水等により水洗されても耐磨耗性が低下することがない。このため駐車場の床など水洗作業がされる場所への使用には効果的である。
同時にメチルケイ酸カリウムが空気中の炭酸ガスと反応してポリシリケートを形成するためにコンクリートの中性化が抑制され、前記のようなコンクリート構造物の劣化やヒビの発生を無くすことができコンクリート構造物の長寿命化に役立つ。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a water-permeable composition used for reinforcing the surface of concrete, mortar, concrete block, and the like, and a method for reinforcing the surface of concrete.
[0002]
[Patent Document 1] JP-A-2002-338375 [Patent Document 2] JP-A-2001-207118 [0003]
[Prior art]
Floors made of concrete, mortar, concrete blocks, and the like are inevitably deteriorated with time due to erosion by loads, chemicals, and wear due to friction.
Further, in recent years, a situation has arisen in which a bomp truck is widely used for concrete driving work. Although the concrete casting by the pump truck simplifies the construction, it is easy to perform the casting in a soft kneaded state in which the mixing ratio of water is increased in order to make it easier to drive. If the amount of water is more than a predetermined amount, the drying shrinkage of the concrete is increased, which is likely to cause cracks. As a result, air and rainwater permeate. If the amount of water is more than a predetermined amount, air bubbles remain after the water is scattered, and air or rainwater permeates. Furthermore, the concrete structure has cracks because the foundation is exposed to a large temperature cycle of about 15 ° C. under the ground, while the rooftop and the outdoors are exposed to a large temperature cycle of solar radiation in summer and cold radiation in winter. . When rainwater or air penetrates into concrete through such cracks and bubbles, alkali components react with carbon dioxide and neutralization progresses. Problems, such as "deterioration,""rainwater penetrates and the rust and corrosion of the reinforcing bars further increase," and "parts of the structure fall off due to cracks and the appearance is impaired." Was.
[0004]
As a method of avoiding such deterioration and neutralization, a method of coating the surface with an epoxy resin, a urethane resin, an acrylic resin, or the like has been attempted. However, such surface strengthening is a high molecular weight material, which impairs permeability to concrete, mortar, etc. In addition, even if the surface of the structure is coated, problems such as deterioration, peeling, and blistering of the coating film will occur. There is.
[0005]
On the other hand, concrete surface strengthening by silicates such as water glass is known. Although silicates such as water glass have excellent permeability to concrete, mortar, etc., they are made of silicates with a molar ratio of silicon to alkali of 4 or less. There is a concern that cracks are generated by the alkali-aggregate reaction, and that the carbonation rate of concrete is increased due to the high alkalinity of the accumulated water, thereby promoting neutralization.
Furthermore, if water is applied in a state where the reaction of the silicate with calcium such as water glass is insufficient, there is a problem that it is eluted because there is no water repellency, and it takes time until the effect is obtained with a delayed effect, There is a problem that the effect cannot be obtained with old concrete in which calcium hydroxide has disappeared because the protective layer is formed by combining with an alkali component (such as calcium hydroxide) of cement.
[0006]
Also, a method using a silicofluoride compound such as magnesium silicofluoride or zinc silicofluoride has been adopted, but it is toxic due to the fluorine compound, causes environmental pollution, and is corrosive. And so on. In addition, the fluorinated compound has a problem that it is difficult to obtain an effect on old concrete for the same reason as the silicate.
[0007]
[Problems to be solved by the invention]
Such a conventional problem, that is, an aqueous permeable composition that has excellent permeability to concrete, mortar, and the like, and that has been improved to prevent neutralization and deterioration and not to elute even when exposed to water. It is intended to provide a method for strengthening the surface of objects and concrete.
[0008]
[Means for Solving the Problems]
The present invention relates to an aqueous permeable composition comprising sodium silicate and potassium methyl silicate, which has been developed to solve the above-mentioned problems, and a method for strengthening the surface of concrete, which will be described in detail below.
[0009]
Sodium silicate employed in the present invention is one represented by Na2_rei-XSi_〇, molar ratio, Si_〇 2 / NA 2 O are mentioned those of 2 / 1-1 / 4.
Sodium silicate reacts with polyvalent metal ions such as Ca, Mg, Al, and Ba in cements such as concrete and mortar to form insoluble silicate metal hydrates and metal hydroxides, and concrete, mortar, etc. Can be filled to improve the strength.
[0010]
Potassium methyl silicate is used as an aqueous solution of about 54% by weight of potassium methyl silicate CH 3 Si (OH) 2 OK dissolved in water, and is used as a methyl silicate polymer containing about 34% by weight. The potassium methyl silicate reacts with carbon dioxide in the air to form polymethyl silicate (CH 3 SiO 3/2 ), and water repellency is obtained.
[0011]
The mixing ratio of sodium silicate and potassium methyl silicate is 100/1 to 100/20. If it is less than 100/1, the water repellency is insufficient, which is not preferable. On the other hand, when the ratio is 100/20 or more, repelling becomes remarkable, which is not preferable.
A suitable concentration is 5 to 40% by weight. If the content is 5% by weight or less, the effect of strengthening, which is the original purpose, cannot be expected even if penetration into concrete, mortar, and the like is good. On the other hand, if it is 40% by weight or more, the concentration is too high, and the permeability to concrete, mortar and the like tends to be insufficient, which is not preferable.
[0012]
Others, if necessary, for coloring, various pigments, for example, known titanium oxide, carbon black, chromium oxide, inorganic pigments such as gun blue, azo pigments, polycondensation type pigments, quinacridone pigments, cyanine blue, cyanine green, etc. A desired hue can be imparted using an organic pigment or a known organic coloring compound, an ink, a natural or synthetic dye, or the like alone or in combination of two or more.
[0013]
The aqueous permeable composition prepared with such a compounding material is applied to a surface of concrete, mortar, or the like by a coating means such as a brush, a roller brush, a mop, a spoon and the like, and is applied in an amount of 0.1 to 0.5 kg / m2. Strengthening is achieved.
In addition, it is preferable that the application is performed a plurality of times rather than one time to achieve penetration into concrete, mortar, or the like.
[0014]
Structures made of concrete, mortar, etc., such as floors, are used in a state in which the aqueous permeable composition is applied and reinforced, or a resin waterproof layer, a fiber reinforced resin layer, etc. are applied and waterproofed. It can be used as a surface reinforced floor, parking lot floor, factory or warehouse floor, and the like.
[0015]
Hereinafter, the present invention will be described in detail according to Examples and Comparative Examples. The blending ratio is described by simply using parts by weight as parts. Note that the present invention is not limited to this.
[0016]
Example 1
Concrete 30 days after casting a 26.5% aqueous permeable composition consisting of 50 parts of No. 3 water glass (50% solids), 3 parts of potassium methylsilicate aqueous solution (50% solids), and 47 parts of water It was coated with 0.3 kg / m 2 brush to the surface. The results of the evaluation tests described below for those cured for 10 days after application (without washing) and those cured for 9 days after immersing in water for 1 hour after being cured for 1 day and then washing with water (with washing) are shown in Table 1. It was on the street.
[0017]
Example 2
Table 1 shows the results of the evaluation test performed in the same manner as in Example 1 except that the aqueous solution of potassium methylsilicate was changed to 8 parts and water was changed to 42 parts.
[0018]
Example 3
Table 1 shows the results of an evaluation test performed in the same manner as in Example 1 except that the water glass No. 3 was changed to 30 parts and the water was changed to 67 parts.
[0019]
Comparative Example 1
A water-permeable composition having a concentration of 25% was prepared by mixing 50 parts of No. 3 water glass and 50 parts of water, and an evaluation test was performed in the same manner as in Example 1. The results are as shown in Table 1.
[0020]
Comparative Example 2
An aqueous permeable composition having a concentration of 15% was prepared by mixing 30 parts of No. 3 water glass and 70 parts of water. Table 1 shows the results of the evaluation test performed in the same manner as in Example 1.
[0021]
Comparative Example 3
The concrete cured 30 days after casting was used as Comparative Example 3.
[0022]
[Table 1]
Evaluation method Water repellency / spray 10 ml of water and observe the water repellency.
Water permeability / Measured by the method B (24 hours) of JIS A6909.
The test specimen was held horizontally, and the funnel-shaped permeation test fixture was fastened with a silicone sealing material. After standing for 48 hours or more, water at 20 ± 2 ° C. was poured from the surface of the test specimen to a height of 250 mm. The difference between the head height and the head height after 24 hours is determined.
After being left for 30 days in an environment containing 20% RH and 60% RH in an atmosphere containing carbon dioxide of 5% neutralization, the neutralization of the surface is measured according to the following Japan Highway Public Corporation Standard (JHS311-1992).
Japan Highway Public Corporation Standards (JHS311-192)
Using the split surface of the concrete core as a measurement surface, {circle around (1)} a 1% ethanol solution of phenolphthalene is sprayed on the measurement surface. {Circle around (2)} Magic and draw boundaries between colored and uncolored parts. In the case of concrete with a high moisture content, the reading is taken two days later. (3) Measure the maximum and minimum of the neutralization depth from the surface. (4) Trace the border on a transparent vinyl sheet. (5) Measure the area of the non-colored portion.
Calculation C = A / L
C: Average neutralization depth mm
A: Area of non-colored part mm 2
L: Length of measurement surface mm
Abrasion resistance: According to the measurement method specified in JIS K7204. The wear weight is measured under the conditions of a wear wheel H22, a load of 1 kg, and 1000 rotations.
[0024]
【The invention's effect】
The aqueous permeable composition according to the present invention contains sodium silicate and potassium methyl silicate, and quickly penetrates into concrete, and sodium silicate reacts with polyvalent metal compounds such as Ca and Mg in concrete. To form voids and fill voids, and potassium methyl silicate reacts with carbon dioxide in the air to form polysilicate. As a result, a void filling effect and water repellency of the concrete are obtained, and the water permeability is reduced, so that the waterproofness of the structure can be significantly improved.
In addition, the concrete surface is strengthened, and the abrasion resistance and the like are greatly improved. As confirmed in the above Examples and Comparative Examples, when concrete surface-treated with conventional water glass is washed with rainwater or the like, the abrasion resistance is significantly reduced. When treated with an agent, the abrasion resistance does not decrease even when washed with rainwater or the like. Therefore, it is effective for use in a place where washing work is performed, such as a floor of a parking lot.
At the same time, potassium methyl silicate reacts with carbon dioxide gas in the air to form polysilicate, so that neutralization of concrete is suppressed, and deterioration of concrete structures and generation of cracks as described above can be eliminated. Useful for extending the life of objects.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008017240A1 (en) * | 2006-08-04 | 2008-02-14 | Zhu, Xiangxiang | Concrete protective sol |
| KR101265239B1 (en) | 2011-01-27 | 2013-05-16 | 진도화성주식회사 | Water repellency and non-freezing in winter aqueous concrete surface reinforcing agent based alkali silicate, manufacturing method thereof and method of treating concrete surface reinforcement using the same |
| JP2016079041A (en) * | 2014-10-09 | 2016-05-16 | 富士化学株式会社 | Silicate-type surface impregnate material used for surface modification of concrete structure |
| JP2016079042A (en) * | 2014-10-09 | 2016-05-16 | 富士化学株式会社 | Silicate-type surface impregnate material used for surface modification of spraying mortar of slope face working |
| JP2016098167A (en) * | 2014-11-18 | 2016-05-30 | 功 小島 | Lithic modification function material |
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2003
- 2003-02-26 JP JP2003048399A patent/JP4462474B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008017240A1 (en) * | 2006-08-04 | 2008-02-14 | Zhu, Xiangxiang | Concrete protective sol |
| JP2009545508A (en) * | 2006-08-04 | 2009-12-24 | シュ シャンシャン | Concrete protective particle colloid |
| KR101265239B1 (en) | 2011-01-27 | 2013-05-16 | 진도화성주식회사 | Water repellency and non-freezing in winter aqueous concrete surface reinforcing agent based alkali silicate, manufacturing method thereof and method of treating concrete surface reinforcement using the same |
| JP2016079041A (en) * | 2014-10-09 | 2016-05-16 | 富士化学株式会社 | Silicate-type surface impregnate material used for surface modification of concrete structure |
| JP2016079042A (en) * | 2014-10-09 | 2016-05-16 | 富士化学株式会社 | Silicate-type surface impregnate material used for surface modification of spraying mortar of slope face working |
| JP2016098167A (en) * | 2014-11-18 | 2016-05-30 | 功 小島 | Lithic modification function material |
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