JPH09208342A - Waterproof material for fair-faced concrete and polymer for cement admixture - Google Patents
Waterproof material for fair-faced concrete and polymer for cement admixtureInfo
- Publication number
- JPH09208342A JPH09208342A JP3542396A JP3542396A JPH09208342A JP H09208342 A JPH09208342 A JP H09208342A JP 3542396 A JP3542396 A JP 3542396A JP 3542396 A JP3542396 A JP 3542396A JP H09208342 A JPH09208342 A JP H09208342A
- Authority
- JP
- Japan
- Prior art keywords
- polymer
- pigment
- cement admixture
- concrete
- waterproof material
- 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
- 229920000642 polymer Polymers 0.000 title claims abstract description 48
- 239000000463 material Substances 0.000 title claims abstract description 45
- 239000004567 concrete Substances 0.000 title claims abstract description 44
- 239000004568 cement Substances 0.000 title claims abstract description 32
- 239000000049 pigment Substances 0.000 claims abstract description 38
- 239000007787 solid Substances 0.000 claims description 15
- 238000004383 yellowing Methods 0.000 abstract description 17
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 description 21
- 239000011347 resin Substances 0.000 description 21
- 239000004570 mortar (masonry) Substances 0.000 description 10
- 239000000839 emulsion Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 229920006243 acrylic copolymer Polymers 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000005038 ethylene vinyl acetate Substances 0.000 description 4
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000011398 Portland cement Substances 0.000 description 3
- 229920002125 Sokalan® Polymers 0.000 description 3
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 description 3
- 239000001023 inorganic pigment Substances 0.000 description 3
- 239000004584 polyacrylic acid Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 238000004078 waterproofing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- DHZSIQDUYCWNSB-UHFFFAOYSA-N chloroethene;1,1-dichloroethene Chemical compound ClC=C.ClC(Cl)=C DHZSIQDUYCWNSB-UHFFFAOYSA-N 0.000 description 2
- 229920006026 co-polymeric resin Polymers 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 239000011118 polyvinyl acetate Substances 0.000 description 2
- 229920002689 polyvinyl acetate Polymers 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 235000010215 titanium dioxide Nutrition 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- -1 acrylic ester Chemical class 0.000 description 1
- 235000012745 brilliant blue FCF Nutrition 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004815 dispersion polymer Substances 0.000 description 1
- 239000010797 grey water Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920006173 natural rubber latex Polymers 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229940110337 pigment blue 1 Drugs 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229920006174 synthetic rubber latex Polymers 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- C04B41/46—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 organic materials
- C04B41/48—Macromolecular compounds
-
- 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)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、黄変し難い打放し
コンクリートのトップコート用防水材及び打放しコンク
リートの補修材に配合される黄変し難いセメント混和用
ポリマーに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproofing material for a topcoat of exposed concrete that does not easily turn yellow, and a polymer for admixing cement that does not easily turn yellow, which is blended with a repair material for exposed concrete.
【０００２】[0002]
【従来の技術】打放しコンクリートは、駆体表面に型枠
の木目模様が写って自然らしい趣を呈するが、打放しコ
ンクリートにはピンホールがつきもので、これを放置す
ると浸水する虞れがある。このため従来は、表面にアク
リル樹脂などの合成樹脂からなる透明な防水材を塗布し
てトップコートを施す。しかし、合成樹脂からなる透明
な防水材は、乾燥固化（造膜）する際に黄色乃至は茶色
に変色（以下、黄変という）し、さらに紫外線等により
経時的に黄変が増すという欠点がある。2. Description of the Related Art Exposed concrete has a natural appearance in which a wood grain pattern of a form is reflected on the surface of a vehicle body, but exposed concrete has pinholes, and if left unattended, it may be flooded. Therefore, conventionally, a transparent waterproof material made of a synthetic resin such as acrylic resin is applied to the surface to apply a top coat. However, a transparent waterproof material made of a synthetic resin has a drawback that it discolors to yellow or brown (hereinafter referred to as yellowing) when it is dried and solidified (film formation), and further yellowing increases with time due to ultraviolet rays. is there.
【０００３】また、打放しコンクリートの駆体表面に巣
穴、コールドジョイント、水あばた等の欠損部が発生す
ることがある。この欠損部を、接着性を有し補修材に強
度を付与するためのセメント混和用ポリマー、例えばア
クリル共重合樹脂やエチレン酢酸ビニル共重合樹脂に駆
体表面と色合わせしたモルタルを混合した補修用モルタ
ルを塗布して穴埋めし、外観を違和感のないような仕上
げとする。しかし、ここで用いられるセメント混和用ポ
リマーも、上記防水材の場合と同様に、黄変するという
欠点があるため、セメント混和用ポリマーを配合した補
修用モルタルも黄変するという問題がある。従って、補
修後、塗料等を塗布して化粧を施す場合には使用できる
が、打放しコンクリートの補修用としては使用できな
い。このため、打放しコンクリートのトップコート用の
防水材や打放しコンクリートの補修材に配合される合成
樹脂の黄変を防止する技術が望まれていた。In addition, cavities, cold joints, water patters, and other defects may occur on the surface of exposed concrete. A cement admixture polymer that has adhesiveness and imparts strength to the repair material, such as an acrylic copolymer resin or ethylene vinyl acetate copolymer resin mixed with a mortar that matches the color of the precursor surface Apply mortar and fill in the holes to make the appearance look natural. However, the cement admixture polymer used here also has a drawback that it turns yellow as in the case of the above-mentioned waterproof material, so that there is a problem that the repair mortar containing the cement admixture polymer also turns yellow. Therefore, it can be used when applying paint or the like to make up after repair, but cannot be used for repairing exposed concrete. Therefore, there has been a demand for a technique for preventing yellowing of a synthetic resin mixed in a waterproof material for a topcoat of exposed concrete or a repair material for exposed concrete.
【０００４】[0004]
【発明が解決しようとする課題】そこで、本発明の目的
は、黄変し難い打放しコンクリートのトップコート用の
防水材及び打放しコンクリートの補修材に配合される黄
変し難いセメント混和用ポリマーを提供することにあ
る。Therefore, an object of the present invention is to provide a waterproofing material for a topcoat of exposed concrete that does not easily turn yellow, and a cement admixture polymer that does not easily turn yellow and that is blended with a repair material for exposed concrete. To do.
【０００５】[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、本発明者は鋭意研究した結果、従来用いられている
打放しコンクリートの防水材としてのトップコート用ポ
リマー或いはセメント混和用ポリマーに所定の色の顔料
を適宜混合することにより、上記ポリマーの黄変を防止
できることを見出し、本発明を完成した。すなわち、本
発明の打放しコンクリート用防水材は、打放しコンクリ
ートの表面に塗布する防水材としてのトップコート用ポ
リマーに、青みを帯びた灰色系顔料を配合してなるこ
と、を特徴としている。ここで、前記トップコート用ポ
リマーの固形分１００重量部に対して前記顔料（固形
分）を０．０５〜１重量部配合するのが好ましい。ま
た、本発明のセメント混和用ポリマーは、打放しコンク
リートの補修材に配合されるセメント混和用ポリマーで
あって、該セメント混和用ポリマーに、青みを帯びた灰
色系顔料を配合してなること、を特徴としている。ここ
で、前記セメント混和用ポリマーの固形分１００重量部
に対して前記顔料（固形分）を０．０５〜１重量部配合
するのが好ましい。In order to solve the above problems, the present inventor has conducted earnest research and as a result, it has been determined that a polymer for a top coat or a polymer for admixing cement as a waterproofing material for hitherto used concrete has a predetermined content. The present invention has been completed by finding that yellowing of the polymer can be prevented by appropriately mixing color pigments. That is, the waterproof material for exposed concrete of the present invention is characterized in that a polymer for a top coat as a waterproof material applied to the surface of exposed concrete is blended with a bluish gray pigment. Here, it is preferable to add 0.05 to 1 part by weight of the pigment (solid content) to 100 parts by weight of the solid content of the top coat polymer. Further, the cement admixture polymer of the present invention is a cement admixture polymer that is blended into a repair material for exposed concrete, wherein the cement admixture polymer is blended with a bluish gray pigment. It has a feature. Here, it is preferable to add 0.05 to 1 part by weight of the pigment (solid content) to 100 parts by weight of the cement admixture polymer.
【０００６】[0006]
【発明の実施の形態】以下、本発明を具体的に説明す
る。打放しコンクリートの表面に塗布する防水材は、モ
ルタルが湿気や水分を吸収するのを防ぐものであればよ
く、打放しコンクリートの地肌模様をそのまま残すため
に、透明である必要がある。かかるトップコート用ポリ
マーとしては、ポリアクリル酸エステル、ポリ酢酸ビニ
ル、塩化ビニリデン塩化ビニル、ポリプロピオン酸ビニ
ル、エチレン酢酸ビニルなどの熱可塑性樹脂、エポキシ
樹脂などの熱硬化性樹脂又は上記各樹脂の２種以上の混
合物などが挙げられ、水性ポリマー及び溶剤形ポリマー
のいずれでもよい。これらの内、耐候性に優れるアクリ
ル酸エステル系共重合樹脂が好ましく、このような樹脂
エマルジョンの一例としてヘキスト合成株式会社製 商
品名モビニール７４５がある。このものは塗膜が硬く、
光沢があり、耐候性に優れ、最低造膜温度は約０℃のた
め、常温でそのまま塗布できる。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be specifically described below. The waterproof material applied to the surface of the exposed concrete may be any material as long as it prevents the mortar from absorbing moisture and water, and it is necessary to be transparent in order to leave the background pattern of the exposed concrete as it is. Examples of the polymer for the top coat include thermoplastic resins such as polyacrylic acid ester, polyvinyl acetate, vinylidene chloride vinyl chloride, vinyl polypropionate, and ethylene vinyl acetate; thermosetting resins such as epoxy resin; Examples thereof include a mixture of two or more species, which may be either an aqueous polymer or a solvent-type polymer. Among these, acrylic acid ester-based copolymer resins having excellent weather resistance are preferable, and an example of such a resin emulsion is Movinyl 745, manufactured by Hoechst Synthetic Co., Ltd. This one has a hard coating,
It is glossy, has excellent weather resistance, and has a minimum film-forming temperature of approximately 0 ° C, so it can be applied as it is at room temperature.
【０００７】また、セメント混和用ポリマーは、コンク
リート駆体との良好な接着性を有するとともに補修材に
強度を付与するもので、硬化後弾性を示すもの、弾性を
示さないもののいずれをも含む。このようなセメント混
和用ポリマーとしては、天然ゴムラテックス、スチレン
ブタジエンゴム、クロロプレンゴム、アクリロニトリル
ブタジエンゴムなどの合成ゴムラテックス又はこれらの
２種以上の混合ラテックス、ポリアクリル酸エステル、
ポリ酢酸ビニル、塩化ビニリデン塩化ビニル、ポリプロ
ピオン酸ビニル、エチレン酢酸ビニルなどの熱可塑性樹
脂エマルジョン、エポキシ樹脂などの熱硬化性樹脂エマ
ルジョン又は上記各樹脂の２種以上の混合物などの水性
ポリマーディスパージョン、エチレン酢酸ビニル、酢酸
ビニルバーサテートなどの再乳化形粉末樹脂（水中に分
散させると再乳化してエマルジョンとなる粉末樹脂）、
セルロース誘導体、ポリビニルアルコール、ポリアクリ
ル酸塩（Ｃａ塩など）、フルフリルアルコールなどの水
溶性ポリマー、不飽和ポリエステル、エポキシ樹脂など
の液状ポリマーなどが挙げられる。これらの内、防水性
や耐光性に優れる点でアクリル共重合樹脂が好ましい。
このようなアクリル共重合樹脂の内硬化後弾性を示すも
のの一例としてヘキスト合成株式会社製 商品名モビト
ンＬＤＭ３７５０がある。このものはセメントと混和す
ることにより、高弾性を有したモルタルとなり、防水性
を有し耐候性に優れ、最低造膜温度は約０℃である。こ
のように補修材に高弾性を付与するものは、日射を受け
る屋外のような温度変化の激しい部位に用いるのに好適
である。屋内のような温度変化の激しくない部位に用い
る場合には弾性を示さないものでもよく、そのようなア
クリル共重合樹脂の一例としてヘキスト合成株式会社製
商品名モビニール１０２Ｅがある。このものは、接着
性、防水性に優れ、最低造膜温度は約０℃である。Further, the cement admixture polymer has good adhesiveness to the concrete precursor and imparts strength to the repair material, and includes both those exhibiting elasticity after curing and those not exhibiting elasticity. Such cement admixture polymers include natural rubber latex, styrene butadiene rubber, chloroprene rubber, synthetic rubber latex such as acrylonitrile butadiene rubber, or mixed latex of two or more kinds of these, polyacrylic acid ester,
An aqueous polymer dispersion such as a thermoplastic resin emulsion such as polyvinyl acetate, vinylidene chloride vinyl chloride, polyvinyl propionate, ethylene vinyl acetate, a thermosetting resin emulsion such as an epoxy resin, or a mixture of two or more of the above resins, Re-emulsified powder resin such as ethylene vinyl acetate and vinyl acetate versatate (powder resin that becomes re-emulsified when dispersed in water to form an emulsion),
Examples thereof include cellulose derivatives, polyvinyl alcohol, polyacrylic acid salts (Ca salt, etc.), water-soluble polymers such as furfuryl alcohol, unsaturated polyesters, liquid polymers such as epoxy resins, and the like. Among these, acrylic copolymer resins are preferable because they are excellent in waterproofness and light resistance.
An example of such an acrylic copolymer resin that exhibits elasticity after being internally cured is Mobiton LDM3750, trade name, manufactured by Hoechst Synthesis Co., Ltd. By mixing this with cement, it becomes a mortar with high elasticity, is waterproof and has excellent weather resistance, and the minimum film forming temperature is about 0 ° C. Such a material that imparts high elasticity to the repair material is suitable for use in a site where the temperature changes drastically, such as outdoors exposed to sunlight. When used in a location where the temperature does not change significantly such as indoors, it may be one that does not show elasticity, and an example of such an acrylic copolymer resin is Movinyl 102E manufactured by Hoechst Synthetic Co., Ltd. This product has excellent adhesiveness and waterproofness, and the minimum film forming temperature is about 0 ° C.
【０００８】上記トップコート用ポリマー及びセメント
混和用ポリマーの黄変を防止するための顔料としては、
有機顔料・無機顔料を問わず、青みを帯びた灰色系顔料
であればよい。複数種の色の顔料を適宜混合して上記の
色彩となるようにしてもよい。例えば三陽色素株式会社
製 商品名エマコール、バイエル株式会社製無機顔料
（商品名バイフェロックス、スペシャル顔料）、白色顔
料としてチタン白等の顔料を適宜混合して青みを帯びた
灰色系顔料を得ることができる。トップコート用ポリマ
ーには、ポリマーが水性であるか溶剤形であるかによ
り、水分散性顔料又は溶剤分散性の顔料を使い分ける。
セメント混和用ポリマーには水性ポリマーが用いられる
ので、これに配合する顔料としては分散性の良好な水分
散性の顔料が好ましい。なお、屋外の日射を受ける部位
に用いる場合には、耐光性の良好な無機顔料が好まし
い。As a pigment for preventing yellowing of the above-mentioned top coat polymer and cement admixture polymer,
It does not matter whether it is an organic pigment or an inorganic pigment, as long as it is a bluish gray pigment. You may make it the said color by mixing the pigment of several types of color suitably. For example, Sanyo Dye Co., Ltd., trade name Emmacor, Bayer Co., Ltd. inorganic pigment (trade name: Bayferrox, special pigment), and white pigment such as titanium white are appropriately mixed to obtain a bluish gray pigment. be able to. As the polymer for the top coat, a water-dispersible pigment or a solvent-dispersible pigment is used depending on whether the polymer is aqueous or solvent-type.
Since an aqueous polymer is used as the cement admixture polymer, a water-dispersible pigment having good dispersibility is preferable as a pigment to be mixed therein. In addition, when it is used in a portion exposed to sunlight, an inorganic pigment having good light resistance is preferable.
【０００９】顔料の配合割合は、用いるポリマーの種類
により異なり、また同種のポリマーであってもメーカー
によって黄変の度合いが異なる場合があり、最適の添加
量を適宜決めるが、トップコート用ポリマー又はセメン
ト混和用ポリマーの樹脂分（固形分）１００重量部に対
して顔料（固形分）０．０５〜１重量部の範囲が好まし
く、さらに好ましくは０．２〜０．５重量部の範囲であ
る。顔料の配合割合が０．０５重量部未満では黄変を防
止する効果があまり期待できず、一方１重量部を越える
と黒っぽくなってしまう。０．２〜０．５重量部の範囲
が、コスト的にも有利で充分な黄変防止効果が得られ好
ましい。The blending ratio of the pigment differs depending on the type of polymer used, and the degree of yellowing may differ depending on the manufacturer even for the same type of polymer, and the optimum addition amount is appropriately determined. The pigment (solid content) is preferably in the range of 0.05 to 1 part by weight, more preferably 0.2 to 0.5 part by weight, based on 100 parts by weight of the resin content (solid content) of the cement admixture polymer. . If the blending ratio of the pigment is less than 0.05 parts by weight, the effect of preventing yellowing cannot be expected so much, while if it exceeds 1 part by weight, it becomes dark. The range of 0.2 to 0.5 parts by weight is preferable because it is advantageous in terms of cost and a sufficient effect of preventing yellowing can be obtained.
【００１０】打放しコンクリートの補修材として用いる
には、上記の顔料を適宜量添加したセメント混和用ポリ
マーに、コンクリート駆体表面と色合わせしたモルタル
を適宜量混合して、打放しコンクリートの補修材を得
る。コンクリート駆体表面と色合わせしたモルタルは、
例えば白色セメントとポルトランドセメントと白色系の
骨材を適宜混合してつくる。場合によって砂や砂利等の
骨材を適宜混合してもよく、また顔料を適宜混合しても
よい。かかる補修材をコンクリート駆体の欠損部に充填
するには、左官コテで直接塗布するかモルタルガンで吹
き付けてもよい。To use as a repairing material for exposed concrete, an appropriate amount of the above pigment is added to a cement admixture polymer, and an appropriate amount of mortar that matches the surface of the concrete is mixed to obtain a repairing material for exposed concrete. . Mortar that matches the color of the concrete surface is
For example, it is made by appropriately mixing white cement, Portland cement and white aggregate. Depending on the case, aggregates such as sand and gravel may be appropriately mixed, and pigments may be appropriately mixed. In order to fill the defective portion of the concrete structure with such a repair material, it may be applied directly with a plaster trowel or sprayed with a mortar gun.
【００１１】[0011]
【実施例】以下に本発明を実施例においてより具体的に
説明する。実施例は本発明を例示的に示したものであっ
て本発明を制限するものではない。実施例１ トップコート用ポリマーとして微粒子タイプのアクリル
酸エステル系共重合樹脂エマルジョンであるヘキスト合
成株式会社製 商品名モビニール７４５（樹脂分濃度３
８％）に水を添加して樹脂分濃度を３０％としたもの２
０ｋｇに、青みを帯びた灰色系の顔料として、三陽色素
株式会社製 商品名エマコールホワイト・レッド・ブル
ーを、水８０：エマコールホワイト（固形分５０％）４
０：エマコールレッド（固形分２５％）１：エマコール
ブルー（固形分２５％）１の割合に混合した顔料１００
ｇ（顔料固形分１６．８ｇ）を添加してよく撹拌して、
打放しコンクリート用防水材を得た。EXAMPLES The present invention will be described more specifically below with reference to examples. The examples are illustrative of the invention and do not limit the invention. Example 1 As a polymer for a top coat, a fine particle type acrylic ester-based copolymer resin emulsion manufactured by Hoechst Synthetic Co., Ltd., trade name Movinyl 745 (resin content 3
8%) with water added to make the resin concentration 30% 2
0 kg, as a bluish gray pigment, manufactured by Sanyo Pigment Co., Ltd. under the trade name Emmacol White Red Blue, water 80: Emmacol White (solid content 50%) 4
Pigment 100 mixed in the ratio of 0: Emmacol red (solid content 25%) 1: Emmacol blue (solid content 25%) 1
g (pigment solid content 16.8 g) and well stirred,
A waterproof material for exposed concrete was obtained.
【００１２】かかる防水材を打放しコンクリートの表面
に塗布し（塗布量２００ｇ／ｍ2 ）、４週間屋外に放置
した後目視により観察したところ、何ら黄変は認められ
なかった。比較のため、上記と同様の樹脂エマルジョン
（顔料添加せず）を打放しコンクリートの表面に塗布
し、４週間屋外に放置した後目視により観察したとこ
ろ、黄変が認められた。When such a waterproof material was exposed and applied to the surface of concrete (applied amount of 200 g / m 2 ), it was left outdoors for 4 weeks and then visually observed, and no yellowing was observed. For comparison, the same resin emulsion (without addition of pigment) as above was applied to the surface of the concrete, left standing outdoors for 4 weeks, and then visually observed, and yellowing was observed.
【００１３】実施例２ セメント混和用ポリマーとして、硬化後補修材にゴム状
弾性を付与する微粒子タイプのアクリル共重合樹脂エマ
ルジョンであるヘキスト合成株式会社製 商品名モビト
ンＬＤＭ３７５０（樹脂分濃度６０％）に水を添加して
樹脂分濃度を４０％としたもの２０ｋｇに、青みを帯び
た灰色系の水分散性の顔料として、三陽色素株式会社製
商品名エマコールホワイト・レッド・ブルーを、水８
０：エマコールホワイト４０：エマコールレッド１：エ
マコールブルー１の割合に混合した顔料１００ｇ（顔料
固形分１６．８ｇ）を混合し、さらに白色セメント１
２：普通ポルトランドセメント１：白色の骨材（石粉）
１の割合に混合したモルタル２０ｋｇを添加してよく撹
拌して混合し、打放しコンクリート用の補修材を得た。 Example 2 As a polymer for admixing cement, a fine particle type acrylic copolymer resin emulsion which imparts rubber-like elasticity to a repair material after curing is manufactured by Hoechst Synthetic Co., Ltd. under the trade name of Mobiton LDM3750 (resin concentration 60%). 20 kg of resin content concentration of 40% by adding water, as a bluish gray water dispersible pigment, Sanyo Dye Co., Ltd. trade name Emmacor White Red Blue
100 g of pigment (pigment solid content 16.8 g) mixed in a ratio of 0: Emmacor white 40: Emmacor red 1: Emmacol blue 1 was mixed, and further white cement 1
2: Ordinary Portland cement 1: White aggregate (stone powder)
20 kg of mortar mixed in a ratio of 1 was added and well mixed with stirring to obtain a repair material for bare concrete.
【００１４】実施例３ セメント混和用ポリマーとして、硬化後補修材にゴム状
弾性を付与する微粒子タイプのアクリル共重合樹脂エマ
ルジョンであるヘキスト合成株式会社製 商品名モビト
ンＬＤＭ３７５０（樹脂分濃度６０％）に水を添加して
樹脂分濃度を４０％としたもの２０ｋｇに、青みを帯び
た灰色系の水分散性の顔料として、バイエル株式会社製
商品名バイフェロックス、スペシャル顔料を、水８
０：チタン白４０：バイフェロックス赤１：スペシャル
顔料青１の割合に混合した顔料１００ｇ（顔料固形分３
４．４ｇ）を混合し、さらに白色セメント１２：普通ポ
ルトランドセメント１：白色の骨材（石粉）１の割合に
混合したモルタル２０ｋｇを添加してよく撹拌して混合
し、打放しコンクリート用の補修材を得た。 Example 3 As a polymer for admixing cement, a fine particle type acrylic copolymer resin emulsion imparting rubber-like elasticity to the repair material after curing was used in Hobbyst Synthetic Co., Ltd. under the trade name Mobiton LDM3750 (resin concentration 60%). Water was added to make the resin concentration 40%, and 20 kg of a bluish gray-type water-dispersible pigment with Bayer Co., Ltd. trade name Bayferrox, a special pigment, was added to water 8 kg.
0: titanium white 40: biferrox red 1: special pigment blue 1 100 g (pigment solid content 3)
4.4 g) was further mixed, and 20 kg of mortar mixed in a ratio of white cement 12: normal Portland cement 1: white aggregate (stone powder) 1 was added, well stirred and mixed, and a repair material for exposed concrete Got
【００１５】実施例２および実施例３により得た補修材
をコンクリート駆体の欠損部分に左官コテを用いて充填
した。４週間屋外に放置した後目視により補修部分を確
認したところ、いずれの補修材を用いた場合も何ら黄変
は認められなかった。なお、何らひび割れも認められな
かった。比較のため、セメント混和用ポリマーに顔料を
添加しなかった他は実施例２と同様にして得た補修材
を、コンクリート駆体の欠損部分に充填し、４週間屋外
に放置した後目視により補修部分を確認したところ、黄
変が認められた。The repair material obtained in each of Examples 2 and 3 was filled in a defective portion of a concrete body by using a plaster iron. When the repaired portion was visually confirmed after being left outdoors for 4 weeks, no yellowing was observed when any repair material was used. No crack was observed. For comparison, a repair material obtained in the same manner as in Example 2 except that the pigment was not added to the cement admixture polymer was filled in the defective portion of the concrete body, left for 4 weeks outdoors, and then repaired visually. When the part was checked, yellowing was recognized.
【００１６】[0016]
【発明の効果】本発明の打放しコンクリート用防水材に
よれば、トップコート用ポリマーに所定の色彩の顔料を
配合したので、トップコートの黄変を防止することがで
き、打放しコンクリートの自然な外観を保持できる。な
お、かかる黄変を防止した防水材は、打放しコンクリー
ト以外の建造物の外壁用トップコートとして利用するこ
とも可能である。また、本発明のセメント混和用ポリマ
ーによれば、該ポリマーに所定の色の顔料を配合したの
で、打放しコンクリートの補修材に配合した場合、補修
材の黄変を防止することができ、打放しコンクリートの
自然な外観を保持できる。EFFECTS OF THE INVENTION According to the waterproof material for exposed concrete of the present invention, since the pigment for the predetermined color is blended in the polymer for the top coat, the yellowing of the top coat can be prevented, and the natural appearance of the exposed concrete. Can hold. The waterproof material that prevents such yellowing can also be used as a top coat for outer walls of buildings other than exposed concrete. Further, according to the cement admixture polymer of the present invention, since a pigment of a predetermined color is blended in the polymer, it is possible to prevent yellowing of the repair material when blended in the repair material for the exposed concrete, and the exposed concrete Can retain its natural appearance.
Claims (4)
材としてのトップコート用ポリマーに、青みを帯びた灰
色系顔料を配合してなることを特徴とする打放しコンク
リート用防水材。1. A waterproof material for exposed concrete, comprising a polymer for a top coat as a waterproof material applied to the surface of exposed concrete, and a bluish gray pigment incorporated therein.
０重量部に対して前記顔料（固形分）を０．０５〜１重
量部配合してなる請求項１に記載の打放しコンクリート
用防水材。2. A solid content of 10 for the polymer for the top coat.
The waterproof material for exposed concrete according to claim 1, wherein 0.05 to 1 part by weight of the pigment (solid content) is mixed with 0 part by weight.
セメント混和用ポリマーであって、該セメント混和用ポ
リマーに、青みを帯びた灰色系顔料を配合してなること
を特徴とするセメント混和用ポリマー。3. A cement admixture polymer to be blended into a repair material for exposed concrete, wherein the cement admixture polymer is blended with a bluish gray pigment. .
０重量部に対して前記顔料（固形分）を０．０５〜１重
量部配合してなる請求項３に記載のセメント混和用ポリ
マー。4. The solid content of the cement admixture polymer is 10.
The polymer for admixing cement according to claim 3, wherein 0.05 to 1 part by weight of the pigment (solid content) is mixed with 0 part by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3542396A JPH09208342A (en) | 1996-01-29 | 1996-01-29 | Waterproof material for fair-faced concrete and polymer for cement admixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3542396A JPH09208342A (en) | 1996-01-29 | 1996-01-29 | Waterproof material for fair-faced concrete and polymer for cement admixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09208342A true JPH09208342A (en) | 1997-08-12 |
Family
ID=12441472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3542396A Pending JPH09208342A (en) | 1996-01-29 | 1996-01-29 | Waterproof material for fair-faced concrete and polymer for cement admixture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09208342A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000345565A (en) * | 1999-03-29 | 2000-12-12 | Sekisui Chem Co Ltd | Ground anchor method and pressure plate support |
| KR100975581B1 (en) * | 2010-03-16 | 2010-08-13 | 주식회사 이레하이테크이앤씨 | Polymer modified high-early strength concrete composite and repairing method of road pavement using the composite |
| CN110818366A (en) * | 2019-12-25 | 2020-02-21 | 泸州临港思源混凝土有限公司 | Fair-faced concrete and preparation process thereof |
| CN114685115A (en) * | 2020-12-31 | 2022-07-01 | 青岛青建新型材料集团有限公司 | Improved fair-faced concrete and preparation method thereof |
-
1996
- 1996-01-29 JP JP3542396A patent/JPH09208342A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000345565A (en) * | 1999-03-29 | 2000-12-12 | Sekisui Chem Co Ltd | Ground anchor method and pressure plate support |
| KR100975581B1 (en) * | 2010-03-16 | 2010-08-13 | 주식회사 이레하이테크이앤씨 | Polymer modified high-early strength concrete composite and repairing method of road pavement using the composite |
| CN110818366A (en) * | 2019-12-25 | 2020-02-21 | 泸州临港思源混凝土有限公司 | Fair-faced concrete and preparation process thereof |
| CN114685115A (en) * | 2020-12-31 | 2022-07-01 | 青岛青建新型材料集团有限公司 | Improved fair-faced concrete and preparation method thereof |
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