JPH11278899A - Protective mortar for reinforcing fiber sheet and applying method of protective mortar - Google Patents
Protective mortar for reinforcing fiber sheet and applying method of protective mortarInfo
- Publication number
- JPH11278899A JPH11278899A JP8565098A JP8565098A JPH11278899A JP H11278899 A JPH11278899 A JP H11278899A JP 8565098 A JP8565098 A JP 8565098A JP 8565098 A JP8565098 A JP 8565098A JP H11278899 A JPH11278899 A JP H11278899A
- Authority
- JP
- Japan
- Prior art keywords
- mortar
- fiber sheet
- reinforcing fiber
- solid content
- polymer dispersion
- 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.)
- Granted
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
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- 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
-
- 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
- C04B2103/0057—Polymers chosen for their physico-chemical characteristics added as redispersable powders
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00577—Coating or impregnation materials applied by spraying
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、耐震補強工事に用
いる補強用繊維シートの保護モルタルと、その保護モル
タルの施工方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective mortar for a reinforcing fiber sheet used for seismic retrofitting and a method for applying the protective mortar.
【０００２】[0002]
【従来の技術】一般に、コンクリートの構造物の耐震補
強手段の一種として、炭素繊維、アラミド繊維等の種々
の繊維シートによって補強する手段がある。2. Description of the Related Art In general, as one type of seismic retrofitting means for a concrete structure, there is a means of reinforcing with a variety of fiber sheets such as carbon fiber and aramid fiber.
【０００３】このような繊維シートによる補強は、従来
では、補強しようとするコンクリート表面に繊維シート
をエポキシ樹脂接着剤により複数回積層して張り付ける
ことにより行われている。Conventionally, such reinforcement with a fiber sheet is performed by laminating and attaching a fiber sheet to a concrete surface to be reinforced by an epoxy resin adhesive a plurality of times.
【０００４】[0004]
【発明が解決しようとする課題】しかし、このような補
強手段によれば、施工された最終仕上面がエポキシ樹脂
接着剤によって構成されることとなるため、熱に弱く、
火災等が発生した場合にはエポキシ樹脂接着剤が燃焼す
るおそれがある。However, according to such a reinforcing means, since the final finished surface thus constructed is constituted by an epoxy resin adhesive, it is susceptible to heat,
If a fire or the like occurs, the epoxy resin adhesive may burn.
【０００５】また、エポキシ樹脂接着剤の接着面は、衝
撃や摩擦等の物理的な損傷要因にも弱い。[0005] The bonding surface of the epoxy resin adhesive is also weak against physical damage factors such as impact and friction.
【０００６】そこで、これらの問題点を解決するため
に、最終仕上げ面を構成するエポキシ樹脂接着剤が硬化
する前に、そのエポキシ樹脂接着剤に乾燥珪砂を散布
し、その接着面に凹凸を形成して粗面化し、さらに鉄又
はステンレスのメッシュをアンカー等で取り付けた上
で、通常の左官モルタルを４cm以上塗り付ける工法も採
用されている。Therefore, in order to solve these problems, before the epoxy resin adhesive constituting the final finished surface is cured, dry silica sand is sprayed on the epoxy resin adhesive to form irregularities on the adhesive surface. The surface is then roughened, and a steel or stainless steel mesh is attached with an anchor or the like, and then a normal plaster mortar is applied by 4 cm or more.
【０００７】しかしながら、左官モルタルは火災等の熱
に対するエポキシ樹脂接着剤の保護には有効であるが、
本来エポキシ樹脂接着剤の表面にはモルタルは付着し難
く、モルタルの剥離や浮きが発生し易いという新たな問
題点が生じていた。However, plaster mortar is effective in protecting epoxy resin adhesive against heat such as fire,
Originally, the mortar hardly adhered to the surface of the epoxy resin adhesive, and there was a new problem that the mortar was easily peeled or lifted.
【０００８】さらに、左官モルタルを４cm以上塗り重ね
るために、施工の作業が煩雑になるという問題点もあっ
た。Further, there is another problem that the work of the construction is complicated because the plaster mortar is applied more than 4 cm.
【０００９】本発明は、このような問題点をすべて解決
するためになされたもので、エポキシ樹脂接着剤の接着
面に直接施工可能であり、耐久性が良好であるとともに
高い付着性を有し、且つ最小１cmという従来の1/4 以下
の厚さで熱や衝撃、摩擦等からエポキシ樹脂系接着剤の
損傷を防止できる補強用繊維シート保護モルタルを提供
することを課題とする。The present invention has been made to solve all of the above problems, and can be directly applied to an adhesive surface of an epoxy resin adhesive, has good durability and has high adhesion. It is another object of the present invention to provide a reinforcing fiber sheet protective mortar having a minimum thickness of 1 cm or less, which is 1/4 or less of the conventional thickness, and which can prevent damage of an epoxy resin-based adhesive from heat, impact, friction and the like.
【００１０】[0010]
【課題を解決するための手段】本発明者等は、鋭意研究
を重ねた結果、エポキシ樹脂系接着剤の上にポリマーデ
ィスパージョン又は再乳化形粉末樹脂の有機物の固形分
量を変えたモルタルを２層に分けて塗り重ね、合量で１
cm以上塗り重ねることで、モルタル全体として必要とさ
れるエポキシ樹脂接着剤との付着性と不燃性という相反
する２つの課題を同時に解決しうる保護モルタル層を形
成できることを見出し、本発明を完成するに至った。Means for Solving the Problems As a result of intensive studies, the present inventors have found that a mortar obtained by changing the solid content of an organic substance of a polymer dispersion or a re-emulsifying type powder resin on an epoxy resin-based adhesive is used. Apply in layers and add 1
It has been found that a protective mortar layer capable of simultaneously solving two contradictory problems of adhesiveness with an epoxy resin adhesive and non-combustibility required for the entire mortar can be formed by coating more than 1 cm, and the present invention is completed. Reached.
【００１１】すなわち、本発明はこのような課題を解決
するために、補強用繊維シート保護モルタルと、その保
護モルタルの施工方法としてなされたもので、補強用繊
維シート保護モルタルとしての特徴は、補強用繊維シー
トに塗着されて該補強用繊維シートを保護する補強用繊
維シート保護モルタルであって、水を除いたモルタル固
形分全量に対して、２〜５重量％の固形分量のポリマー
ディスパージョン又は再乳化形粉末樹脂が配合された下
層用モルタルと、２重量％以下の固形分量のポリマーデ
ィスパージョン又は再乳化形粉末樹脂が配合された上層
用モルタルとからなることにある。That is, in order to solve such problems, the present invention has been made as a reinforcing fiber sheet protective mortar and a method of applying the protective mortar. For protecting a reinforcing fiber sheet, which is applied to a fiber sheet for protection, wherein the polymer dispersion has a solid content of 2 to 5% by weight based on the total solid content of the mortar excluding water. Alternatively, the mortar comprises a lower layer mortar containing a re-emulsified powder resin and an upper layer mortar containing a polymer dispersion or a re-emulsified powder resin having a solid content of 2% by weight or less.
【００１２】ここで、下層用モルタルは２mm以下、上層
用モルタルは８mm以上が、エポキシ樹脂接着剤との不燃
性を保持する上で好ましい。Here, the mortar for the lower layer is preferably 2 mm or less, and the mortar for the upper layer is preferably 8 mm or more in order to maintain the incombustibility with the epoxy resin adhesive.
【００１３】また、補強用繊維シート保護モルタルの施
工方法としての特徴は、補強用繊維シートに塗着して該
補強用繊維シートを保護する補強用繊維シート保護モル
タルの施工方法であって、水を除いたモルタル固形分全
量に対して、２〜５重量％の固形分量のポリマーディス
パージョン又は再乳化形粉末樹脂が配合された下塗り用
モルタルを補強用繊維シートに塗着し、次に該下層用モ
ルタルが硬化した後、水を除いたモルタル固形分全量に
対して、２重量％以下の固形分量のポリマーディスパー
ジョン又は再乳化形粉末樹脂が配合された上層用モルタ
ルを塗着して施工することにある。[0013] A feature of the method of applying the reinforcing fiber sheet protective mortar is a method of applying the reinforcing fiber sheet protecting mortar for coating the reinforcing fiber sheet and protecting the reinforcing fiber sheet. A primer mortar containing a polymer dispersion or a re-emulsifiable powder resin having a solid content of 2 to 5% by weight based on the total solid content of the mortar except for the mortar is applied to a reinforcing fiber sheet. After the mortar for curing is cured, the mortar for the upper layer containing the polymer dispersion or the re-emulsifiable powder resin having a solid content of 2% by weight or less with respect to the total solid content of the mortar excluding water is applied and applied. It is in.
【００１４】本発明において、セメントとしては、ポル
トランドセメント、超速硬性セメント、又はこれらのセ
メントに高炉スラグ、フライアッシュ、シリカヒュー
ム、石灰石粉、石膏等の混合材を混合した混合セメント
が用いられる。In the present invention, as the cement, Portland cement, ultra-rapid hardening cement, or a mixed cement obtained by mixing these cements with a mixed material such as blast furnace slag, fly ash, silica fume, limestone powder, and gypsum are used.
【００１５】またポリマーディスパージョン又は再乳化
形粉末樹脂としては、JIS A 6203に示されるポリアクリ
ル酸エステル、スチレンブタジエン、エチレン酢酸ビニ
ル等、セメント混和用として使用されているポリマーデ
ィスパージョン又は再乳化形粉末樹脂が用いられる。The polymer dispersion or re-emulsifiable powder resin is, for example, a polyacrylate, styrene butadiene, ethylene vinyl acetate, etc. polymer dispersion or re-emulsifiable type resin used in cement admixture as shown in JIS A 6203. Powder resin is used.
【００１６】さらに、骨材としては、珪砂、石灰石砂、
軽量骨材等、モルタルに配合できるものを一種以上使用
することができる。Further, as the aggregate, silica sand, limestone sand,
One or more materials that can be blended with the mortar, such as lightweight aggregate, can be used.
【００１７】また、モルタルのひび割れ発生抑制を目的
として、短繊維を配合することも可能である。Further, short fibers can be blended for the purpose of suppressing the occurrence of cracks in the mortar.
【００１８】短繊維としては、耐アルカリ性ガラス、炭
素、アラミド、ビニロン、ポリプロピレン、ポリエチレ
ン、アクリル等からなる短繊維を使用することができ、
その長さ、直径は特に限定されるものではないが、繊維
の長さが短くなると、ひび割れ抑止効果が低下し、逆に
長くなると水との混練性及び施工性が悪化するため、繊
維長が３〜20mmであることが好ましい。As the short fiber, a short fiber made of alkali-resistant glass, carbon, aramid, vinylon, polypropylene, polyethylene, acrylic, or the like can be used.
The length and diameter are not particularly limited, but when the length of the fiber is shortened, the effect of suppressing cracking is reduced, and when the length is increased, the kneading property with water and workability are deteriorated. Preferably it is 3 to 20 mm.
【００１９】また、セメントコンクリート用として使用
できる高性能減水剤、増粘剤、消泡剤等流動性や作業性
の機能付与に必要な混和剤を添加混合することもでき
る。It is also possible to add and mix admixtures such as high-performance water reducing agents, thickeners, defoaming agents and the like which can be used for cement concrete, which are necessary for imparting the function of flowability and workability.
【００２０】以上のような材料は、施工に必要な水と混
練して繊維シート補強後の硬化したエポキシ樹脂接着剤
上に直接吹き付け又はコテ、ローラー等により塗り付け
て施工されるが、モルタル固形分全量に対するポリマー
ディスパージョン又は再乳化形粉末樹脂の固形全量を限
定する必要がある。The above materials are kneaded with water necessary for construction and sprayed directly onto the cured epoxy resin adhesive after reinforcing the fiber sheet or painted with a trowel, roller, or the like. It is necessary to limit the total solid amount of the polymer dispersion or the re-emulsified powder resin to the total amount.
【００２１】すなわち、エポキシ樹脂接着剤の接着面に
十分な接着性を発揮するためには、ポリマーディスパー
ジョン又は再乳化形粉末樹脂を多く配合する必要があ
り、逆に火災等の熱からエポキシ樹脂系接着剤の燃焼を
防止するためには少なくしなければならない。That is, in order to exhibit sufficient adhesiveness to the adhesive surface of the epoxy resin adhesive, it is necessary to incorporate a large amount of polymer dispersion or re-emulsifying type powder resin. It must be reduced to prevent the burning of the system adhesive.
【００２２】そこで、本発明においては、上述のよう
に、モルタル固形分量全量に対するポリマーディスパー
ジョン又は再乳化形粉末樹脂の必要な固形分量が、エポ
キシ樹脂系接着剤の接着面に直接塗着し又は吹き付ける
下層用モルタルでは２〜５重量％であり、下層用モルタ
ルに塗着し又は吹き付ける上層用モルタルでは２重量％
以下であることを見出したのである。Therefore, in the present invention, as described above, the required solid content of the polymer dispersion or the re-emulsifiable powder resin with respect to the total amount of the mortar solid content is directly applied to the bonding surface of the epoxy resin adhesive or It is 2 to 5% by weight in the mortar for the lower layer sprayed, and 2% by weight in the mortar for the upper layer sprayed or sprayed on the mortar for the lower layer.
We found that:
【００２３】[0023]
【実施例】以下、本発明の実施例について説明する。Embodiments of the present invention will be described below.
【００２４】（試験例１）エポキシ樹脂プライマー、エ
ポキシ樹脂接着剤、炭素繊維シート、エポキシ樹脂接着
剤、炭素繊維シート、エポキシ樹脂接着剤の順で表面に
積層して接着させたコンクリート板に、表１に示す割合
で配合した実施例１乃至実施例３の下塗り用モルタル及
び上塗り用モルタルの２種類を塗り重ねて、保護モルタ
ルの材齢28日において接着強度を測定した。(Test Example 1) A concrete board laminated and adhered to a surface in the order of an epoxy resin primer, an epoxy resin adhesive, a carbon fiber sheet, an epoxy resin adhesive, a carbon fiber sheet, and an epoxy resin adhesive, Two types of mortar for undercoating and mortar for overcoating, which were blended at the ratios shown in Example 1, were repeatedly applied, and the adhesive strength was measured on the protective mortar at the age of 28 days.
【００２５】下塗り用モルタルは、普通ポルトランドセ
メント100 重量部、乾燥珪砂100 重量部、ナフタレンス
ルホン酸塩系高性能減水剤0.2 重量部を混合した粉体
と、ポリアクリル酸エステル系ポリマーディスパージョ
ン（固形分45％）と水とを表１に示す割合で配合し、ハ
ンドミキサーで２分間混練し、上記コンクリート板にコ
テで塗り付けた。The undercoating mortar is composed of a powder obtained by mixing 100 parts by weight of ordinary Portland cement, 100 parts by weight of dry silica sand, 0.2 part by weight of a naphthalene sulfonate-based high-performance water reducing agent, and a polyacrylate polymer dispersion (solids). Min. 45%) and water were mixed in the proportions shown in Table 1, kneaded with a hand mixer for 2 minutes, and applied to the concrete plate with a trowel.
【００２６】さらに、この下塗り用モルタルが硬化した
後、上塗り用モルタルとして、早強ポルトランドセメン
ト100 重量部に対して、乾燥珪砂100 重量部、繊維長６
mmのビニロン繊維1.0 重量部、ナフタレンスルホン酸塩
系高性能減水剤0.4 重量部、メチルセルロース系増粘剤
0.02重量部を混合した粉体とポリアクリル酸エステル系
ポリマーディスパージョン（固形分45％）と水とを表１
に示す割合で配合し、ハンドミキサーで２分間混練し、
硬化した下塗り用保護モルタル上へコテで塗り付けた。Further, after the undercoat mortar is hardened, 100 parts by weight of dry silica sand, 100 parts by weight of dry silica sand, and a fiber length of 6 parts by weight are used as an overcoating mortar with respect to 100 parts by weight of the early-strength Portland cement.
1.0 parts by weight of vinylon fiber (mm), 0.4 parts by weight of naphthalene sulfonate-based water reducing agent
Table 1 shows a mixture of 0.02 parts by weight of powder, polyacrylate polymer dispersion (solid content: 45%) and water.
And kneaded with a hand mixer for 2 minutes.
It was troweled onto the cured protective primer mortar.
【００２７】比較例１及び比較例２として、表１に示す
配合のものについて同様の試験を行った。As Comparative Examples 1 and 2, the same test was conducted for the compounds shown in Table 1.
【００２８】結果を表１に示す。The results are shown in Table 1.
【００２９】[0029]
【表１】 [Table 1]
【００３０】表１からも明らかなように、実施例１乃至
実施例３、及び比較例２では接着強度が良好であった
が、ポリマーディスパージョンが配合されていない比較
例１では接着強度が非常に弱かった。As is clear from Table 1, the adhesive strength was good in Examples 1 to 3 and Comparative Example 2, but the adhesive strength was extremely poor in Comparative Example 1 in which no polymer dispersion was blended. Was weak.
【００３１】（試験例２）エポキシ樹脂プライマー、エ
ポキシ樹脂接着剤、炭素繊維シート、エポキシ樹脂接着
剤、炭素繊維シート、エポキシ樹脂接着剤の順で表面に
積層して接着させた石綿セメントパーライト板に、表１
に示す割合で配合した実施例１乃至実施例３の下塗り用
モルタル及び上塗り用モルタルの２種類を塗り重ねて、
保護モルタルの材齢28日において昭和45年建設省告示第
1828号に規定される不燃材料の表面試験方法に準じて不
燃性試験を行った。(Test Example 2) Epoxy resin primer, epoxy resin adhesive, carbon fiber sheet, epoxy resin adhesive, carbon fiber sheet, epoxy resin adhesive , Table 1
The two types of mortar for undercoating and mortar for overcoating which were blended in the ratios shown in
Notification of Ministry of Construction in 1972 on 28 days of age of protective mortar
A nonflammability test was performed according to the surface test method for nonflammable materials specified in No. 1828.
【００３２】比較例１及び比較例２として、表１に示す
配合のものについて同様の試験を行った。As Comparative Example 1 and Comparative Example 2, the same test was conducted for the compounds shown in Table 1.
【００３３】結果を表１に示す。The results are shown in Table 1.
【００３４】表１からも明らかなように、実施例１乃至
実施例３、及び比較例１では不燃焼評価は良好であった
が、ポリマーディスパージョンが15重量部配合されてい
る比較例２では不燃焼評価は悪かった。As is clear from Table 1, in Examples 1 to 3 and Comparative Example 1, the non-combustion evaluation was good, but in Comparative Example 2 in which 15 parts by weight of the polymer dispersion was blended. The non-combustion rating was poor.
【００３５】[0035]
【発明の効果】叙上のように、本発明の繊維シート保護
モルタルを使用すると、繊維シート補強の最終エポキシ
樹脂面への施工性、接着性に優れ、且つ不燃性や耐衝撃
性等の保護機能付与に優れた繊維シート補強のエポキシ
樹脂の保護ができる。As described above, when the fiber sheet protective mortar of the present invention is used, the workability and adhesion to the final epoxy resin surface reinforced with the fiber sheet are excellent, and the non-flammability and impact resistance are protected. It is possible to protect fiber sheet reinforced epoxy resin which has excellent function.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大崎 敬一 大阪市大正区南恩加島７丁目１番55号 住 友大阪セメント株式会社セメント・コンク リート研究所内 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Keiichi Osaki 7-55 Minamionkajima, Taisho-ku, Osaka Sumitomo Osaka Cement Co., Ltd. Cement Concrete Research Laboratory
Claims (2)
繊維シートを保護する補強用繊維シート保護モルタルで
あって、水を除いたモルタル固形分全量に対して、２〜
５重量％の固形分量のポリマーディスパージョン又は再
乳化形粉末樹脂が配合された下層用モルタルと、２重量
％以下の固形分量のポリマーディスパージョン又は再乳
化形粉末樹脂が配合された上層用モルタルとからなるこ
とを特徴とする補強用繊維シート保護モルタル。1. A reinforcing fiber sheet protecting mortar applied to a reinforcing fiber sheet to protect the reinforcing fiber sheet, wherein the mortar is 2 to 2 parts based on the total amount of mortar solids excluding water.
A lower layer mortar containing a solid content of 5% by weight of a polymer dispersion or a re-emulsifying type powder resin; and an upper layer mortar containing a solid content of 2% by weight or less of a polymer dispersion or a re-emulsifying type powder resin. A mortar for protecting a reinforcing fiber sheet, comprising:
維シートを保護する補強用繊維シート保護モルタルの施
工方法であって、水を除いたモルタル固形分全量に対し
て、２〜５重量％の固形分量のポリマーディスパージョ
ン又は再乳化形粉末樹脂が配合された下層用モルタルを
補強用繊維シートに塗着し又は吹き付け、次に該下層用
モルタルが硬化した後、水を除いたモルタル固形分全量
に対して２重量％以下の固形分量のポリマーディスパー
ジョン又は再乳化形粉末樹脂が配合された上層用モルタ
ルを塗着し又は吹き付けて施工することを特徴とする補
強用繊維シート保護モルタルの施工方法。2. A method of applying a reinforcing fiber sheet protective mortar for coating a reinforcing fiber sheet and protecting the reinforcing fiber sheet, the method comprising: A mortar for a lower layer containing a polymer dispersion or a re-emulsifying type powder resin having a solid content of 1% by weight is applied or sprayed onto a reinforcing fiber sheet, and then the mortar for the lower layer is cured and water is removed. A mortar for an upper layer containing a polymer dispersion or a re-emulsifying type powder resin having a solid content of 2% by weight or less based on the total solid content, which is applied or sprayed and applied to the mortar for protection. Construction method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08565098A JP4070298B2 (en) | 1998-03-31 | 1998-03-31 | Reinforcing fiber sheet protective mortar and construction method of the protective mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08565098A JP4070298B2 (en) | 1998-03-31 | 1998-03-31 | Reinforcing fiber sheet protective mortar and construction method of the protective mortar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11278899A true JPH11278899A (en) | 1999-10-12 |
| JP4070298B2 JP4070298B2 (en) | 2008-04-02 |
Family
ID=13864713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08565098A Expired - Lifetime JP4070298B2 (en) | 1998-03-31 | 1998-03-31 | Reinforcing fiber sheet protective mortar and construction method of the protective mortar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4070298B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006037003A (en) * | 2004-07-29 | 2006-02-09 | Taiheiyo Cement Corp | Method for bonding members for polymer cement mortar-cured material each other and polymer cement mortar-cured material |
-
1998
- 1998-03-31 JP JP08565098A patent/JP4070298B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006037003A (en) * | 2004-07-29 | 2006-02-09 | Taiheiyo Cement Corp | Method for bonding members for polymer cement mortar-cured material each other and polymer cement mortar-cured material |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4070298B2 (en) | 2008-04-02 |
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