JPH0530343U - Cellular cushioning material and concrete formwork using it - Google Patents

Cellular cushioning material and concrete formwork using it

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Publication number
JPH0530343U
JPH0530343U JP8493591U JP8493591U JPH0530343U JP H0530343 U JPH0530343 U JP H0530343U JP 8493591 U JP8493591 U JP 8493591U JP 8493591 U JP8493591 U JP 8493591U JP H0530343 U JPH0530343 U JP H0530343U
Authority
JP
Japan
Prior art keywords
cushioning material
concrete
formwork
sides
mold
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
Application number
JP8493591U
Other languages
Japanese (ja)
Inventor
丈爾 太刀川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Takenaka Corp
Original Assignee
Takenaka Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Takenaka Corp filed Critical Takenaka Corp
Priority to JP8493591U priority Critical patent/JPH0530343U/en
Publication of JPH0530343U publication Critical patent/JPH0530343U/en
Pending legal-status Critical Current

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Abstract

(57)【要約】 【目的】 型枠に対する取付け作業を能率良く行える気
泡性緩衝材とそれを使用したコンクリート型枠を提供す
る。 【構成】 片面に多数の中空突起aが形成された凹凸面
部1Aと、その両側に形成された平坦な縁部1B,1B
とから気泡性緩衝材1を構成する。そして、上記の気泡
性緩衝材1を、型枠2の内面に、両側の平坦な縁部1
B,1Bが当該型枠2の側面に回り込んだ状態に取り付
けてコンクリート型枠を構成する。
(57) [Summary] [Purpose] To provide a foam cushioning material and a concrete formwork using the cushioning material that can be efficiently attached to the formwork. [Structure] Concavo-convex surface portion 1A having a large number of hollow protrusions a formed on one surface, and flat edge portions 1B, 1B formed on both sides thereof.
The foamed cushioning material 1 is composed of Then, the foamed cushioning material 1 is applied to the inner surface of the mold 2 so that the flat edges 1 on both sides are formed.
B and 1B are attached in a state where they are wrapped around the side surface of the mold 2 to form a concrete mold.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

本考案は、気泡性緩衝材とそれを使用したコンクリート型枠に関するものであ る。 The present invention relates to a foam cushioning material and a concrete formwork using the same.

【0002】[0002]

【従来の技術】[Prior Art]

壁や柱などのコンクリート躯体の表面に形成されたモルタル層(仕上げ用モル タル又はタイル張りする際の下地モルタル)の剥がれ落ちを防止する手段として 、内面に突起を設けた型枠、或いは、内面に突起付き型枠材を固着した型枠を用 いて、コンクリートを打設し、コンクリート躯体の表面に前記突起に対応する多 数の凹部を形成することは、特公平3−3783号公報によって、既に知られて いる。 As a means to prevent the mortar layer (mortar for finishing or base mortar when tiled) that is formed on the surface of a concrete structure such as a wall or pillar from peeling off, a formwork provided with protrusions on the inner surface or an inner surface According to Japanese Examined Patent Publication No. 3-3783, it is possible to form concrete by using a formwork having a formwork material with protrusions fixed thereto and form a plurality of recesses corresponding to the protrusions on the surface of a concrete skeleton. Already known.

【0003】 しかし、この従来例においては、前記突起が脱型に支障がないような断面形状 (抜き勾配を付けた形状)に形成されていたので、コンクリート躯体面の凹部が 奥狭まり或いはそれに類する形状となり、モルタル層との係合が弱かった。However, in this conventional example, since the protrusion is formed in a cross-sectional shape (shape with a draft) that does not hinder the demolding, the concave portion of the concrete skeleton surface is narrowed or similar. It had a shape and the engagement with the mortar layer was weak.

【0004】[0004]

【考案が解決しようとする課題】[Problems to be solved by the device]

そこで、本考案者は、凹部成型用の突起に抜き勾配を付けなくても脱型に支障 がないように工夫することにより、コンクリート躯体の表面に奥広がりの凹部( モルタル層との係合力を高めるのに都合の良い断面形状の凹部)を容易に形成で き、しかも、コンクリート躯体の表面にモルタル層を形成する際に空気の巻き込 みがなくて、奥広がりの凹部に対して隅々まで確実にモルタルを充填でき、もっ て、モルタル層の剥がれ落ち防止をより一層効果的に行えるようにした施工法を 開発し、提案している。 Therefore, the present inventor devised that the projection for forming the concave portion does not hinder the demolding even if a draft is not provided, so that the concave portion (the engagement force with the mortar layer) that spreads deeply on the surface of the concrete skeleton is provided. It is easy to form recesses with a cross-sectional shape that is convenient to increase, and there is no air entrapment when forming the mortar layer on the surface of the concrete skeleton. We have developed and proposed a construction method that can reliably fill the mortar up to this point, and can prevent the mortar layer from peeling off more effectively.

【0005】 この施工法は、図5に示すように、片面に多数の中空突起aが形成された気泡 性緩衝材(これは、傷付き易い物品や割れ易い物品を梱包する際のクッション材 として一般に使用されているもので、図示のように、平坦なシート基材1aと断面 が方形状又は台形状を呈する多数の中空突起aが形成された柔軟なフィルム1bと が積層された如き構造を有している。)1を、型枠2の内面に取り付けた状態で 、図6に示すように、型枠2内にコンクリート3を打設し、当該コンクリート3 の硬化後、前記型枠2及び気泡性緩衝材1を撤去して、図7に示すように、表面 に前記中空突起aによる多数の凹部bが形成されたコンクリート躯体を構築し、 しかる後、図8に示すように、コンクリート躯体の表面にモルタル4をコテ等で 塗り付けるか又は吹付け機で略垂直な方向から吹き付けてモルタル層4Aを形成 するものである。This construction method, as shown in FIG. 5, is a foamed cushioning material having a large number of hollow protrusions a formed on one surface (this is used as a cushioning material for packing easily scratched or fragile articles). As shown in the figure, it is generally used and has a structure in which a flat sheet substrate 1a and a flexible film 1b having a large number of hollow protrusions a having a square or trapezoidal cross section are laminated. 1 is attached to the inner surface of the mold 2 and concrete 3 is placed in the mold 2 as shown in FIG. Then, by removing the aerated cushioning material 1, as shown in FIG. 7, a concrete skeleton having a large number of concave portions b formed by the hollow protrusions a on the surface thereof is constructed, and thereafter, as shown in FIG. Apply mortar 4 on the surface of the body with a trowel etc. And forms a mortar layer 4A blown from a direction substantially perpendicular with or spraying machine attached.

【0006】 上記の施工法によれば、中空突起aがコンクリート3の側圧を受けることによ り先太形状に変形してコンクリート表面に奥広がりの凹部を成型でき、それでい て、突起が中空であるため、コンクリートの硬化後は奥広がりの凹部bから中空 突起aを容易に抜き取ることができる。また、モルタル4をコンクリート躯体表 面に略垂直な方向から吹き付けてモルタル層4Aを形成する場合は、モルタル層 4Aを形成する際に空気の巻き込みがなくなるので、奥広がりの凹部bの内部隅 々b´まで容易に且つ確実にモルタルを充填できるのである。According to the above-mentioned construction method, the hollow protrusion a can be deformed into a thickened shape by receiving the lateral pressure of the concrete 3 to form a deep recess on the concrete surface, and yet the protrusion is hollow. Therefore, after the concrete is hardened, the hollow protrusion a can be easily pulled out from the recessed portion b that spreads deep inside. Further, when the mortar 4 is sprayed from a direction substantially perpendicular to the surface of the concrete skeleton to form the mortar layer 4A, air is not entrained when the mortar layer 4A is formed, so that the inner corners of the recessed portion b that spreads deeper. The mortar can be easily and surely filled up to b '.

【0007】 尚、コンクリート3の硬化後、前記型枠2及び気泡性緩衝材1を撤去するにあ たっては、両者2,1を同時に撤去してもよいが、時期をずらしてこの順に行う ことが望ましい。即ち、コンクリート3がある程度硬化した時点で、気泡性緩衝 材1を残置させたまま型枠2だけを撤去し、モルタル4の吹付け直前に気泡性緩 衝材1を撤去するようにすれば、気泡性緩衝材1が凹部bの養生シートとして利 用され、モルタルの吹付け作業前に、凹部b内にゴミがつまる虞れがなくなり、 またコンクリートの硬化がゆっくりと進行し、コンクリート品質の向上を図り得 るのである。In addition, when the mold 2 and the foam cushioning material 1 are removed after the concrete 3 is hardened, both 2 and 1 may be removed at the same time. Is desirable. That is, when the concrete 3 is hardened to some extent, only the formwork 2 is removed with the foam cushioning material 1 left, and the foam cushioning material 1 is removed immediately before the mortar 4 is sprayed. The aerated cushioning material 1 is used as a curing sheet for the concave portion b, so that there is no possibility that dust will be clogged in the concave portion b before the mortar spraying work, and the hardening of the concrete proceeds slowly to improve the concrete quality. Can be achieved.

【0008】 しかしながら、上記の施工例では、次のような問題点があった。 即ち、上記の施工例では、図9に示すように、気泡性緩衝材1として、全面凹 凸状のものが使用されており、型枠2の合板2aと同寸法に設定された気泡性緩衝 材1の周囲四辺(凹凸面部)を脚の短いタッカー(ホッチキス針)5…で合板2a 表面に固定することによってコンクリート型枠を構成していた。2bは補強用の木 製縦枠、2cは補強用の木製横枠であり、合板2aの裏面の周囲に釘等により固着さ れている。However, the above-mentioned construction examples have the following problems. That is, in the above-mentioned construction example, as shown in FIG. 9, a foamed cushioning material 1 having a concave-convex shape is used, and the foamed cushioning material having the same dimensions as the plywood 2a of the mold 2 is used. The concrete formwork was constructed by fixing the four sides (uneven surface) of the material 1 to the surface of the plywood 2a with tuckers (stapling needles) 5 having short legs. 2b is a vertical wooden frame for reinforcement and 2c is a horizontal wooden frame for reinforcement, which are fixed around the back surface of the plywood 2a with nails or the like.

【0009】 このため、気泡性緩衝材1と合板2a間にコンクリートのノロ(モルタル成分) が浸入しないようにするためには、タッカー5…を非常に細かいピッチ(例えば 20〜30mmピッチ)で打ち込む必要があり、これが作業能率低下の一因となっ ていた。Therefore, in order to prevent infiltration of concrete slag (mortar component) between the cellular cushioning material 1 and the plywood 2a, the tuckers 5 are driven at a very fine pitch (for example, 20 to 30 mm pitch). It was necessary and this was one of the causes of the decrease in work efficiency.

【0010】 また、隣接するコンクリート型枠の縦目地部分(定尺矩形状の型枠2の長辺部 分)では、たとえ、気泡性緩衝材1の周囲四辺を細かいピッチで合板2aに固定し ても、コンクリート打設時におけるコンクリートの水平方向への流動に伴って、 気泡性緩衝材1の裏面側にコンクリートノロが浸入することを免れ得ず、気泡性 緩衝材1の側縁部がコンクリート内に埋め込まれた状態となり、コンクリート品 質のバラツキが生じやすかった。In addition, in the vertical joints of the adjacent concrete formwork (long side part of the formwork 2 of the standard length rectangular shape), for example, the four sides around the foamy cushioning material 1 are fixed to the plywood 2a at a fine pitch. However, due to the horizontal flow of concrete at the time of pouring the concrete, it is unavoidable that concrete slag penetrates into the back surface side of the foamed cushioning material 1, and the side edge portion of the foamed cushioning material 1 is made of concrete. As it was embedded inside, the quality of the concrete was likely to vary.

【0011】 本考案は、上記の点に留意してなされたもので、その目的とするところは、型 枠に対する取付け作業を能率良く行える気泡性緩衝材とそれを使用したコンクリ ート型枠を提供することにある。The present invention has been made in consideration of the above points, and an object thereof is to provide an air bubble cushioning material and a concrete formwork using the same which can efficiently perform an attaching work to the formwork. To provide.

【0012】[0012]

【課題を解決するための手段】[Means for Solving the Problems]

上記の課題を解決するために、本考案が講じた技術的手段は次の通りである。 即ち、第1考案による気泡性緩衝材の特徴は、片面に多数の中空突起が形成され た凹凸面部の両側に平坦な縁部を形成したことにある。 第2考案によるコンクリート型枠の特徴は、片面に多数の中空突起が形成され た凹凸面部の両側に平坦な縁部を形成した気泡性緩衝材を、型枠の内面に、両側 の平坦な縁部が当該型枠の側面に回り込んだ状態に取り付けたことにある。 The technical means taken by the present invention to solve the above problems are as follows. That is, the characteristic feature of the foamed cushioning material according to the first invention is that flat edge portions are formed on both sides of an uneven surface portion having a large number of hollow protrusions formed on one surface. The feature of the concrete formwork according to the second invention is that a foamed cushioning material having flat edges on both sides of an uneven surface part having a large number of hollow projections formed on one side is provided on the inner surface of the formwork with flat edges on both sides. This is because the part was attached to the side of the formwork.

【0013】[0013]

【作用】[Action]

上記の構成によれば、気泡性緩衝材の両側に形成された平坦な縁部を型枠にタ ッカー等で固定することになるため、タッカー等の打込みが容易である。 しかも、この平坦縁部が型枠の側面に回り込んだ状態に固定するため、隣接し て配置されるコンクリート型枠の縦目地部分において、コンクリートのノロ(モ ルタル成分)が気泡性緩衝材の裏面側に浸入する虞れがない。 また、型枠の側面に回り込む縁部が平坦であるため、凹凸面の厚みに影響され ることなく、コンクリート型枠同士を密着した状態に配置することができる。 According to the above configuration, the flat edge portions formed on both sides of the foamed cushioning material are fixed to the frame with a tucker or the like, so that the tucker or the like can be easily driven. Moreover, since this flat edge is fixed so as to wrap around the side surface of the formwork, in the vertical joint portion of the concrete formwork that is placed adjacently, the noro of the concrete (the mortar component) becomes a foam cushioning material. There is no risk of infiltration into the back side. Further, since the edge portion that wraps around the side surface of the formwork is flat, the concrete formwork can be arranged in close contact with each other without being affected by the thickness of the uneven surface.

【0014】[0014]

【実施例】【Example】

図1は本考案に係る気泡性緩衝材1を示す。この気泡性緩衝材1は、片面に多 数の中空突起aが形成された凹凸面部1Aの両側に平坦な縁部1B,1Bを形成 したもので、図5で説明した従来の気泡性緩衝材1と同様に、平坦なシート基材 1aと断面が方形状又は台形状を呈する多数の中空突起aが形成された前記シート 基材1aよりも薄い柔軟なフィルム1bとが積層された如き構造を有している。気泡 性緩衝材1の長さは任意の長尺ものとして製造され、ロール状に巻いて取り扱わ れるが、横幅は、後述する型枠2の横幅に対応して設定される。 FIG. 1 shows a foam cushioning material 1 according to the present invention. This foamed cushioning material 1 is one in which flat edges 1B and 1B are formed on both sides of an uneven surface portion 1A having a large number of hollow protrusions a formed on one surface. In the same manner as in 1, a structure in which a flat sheet substrate 1a and a flexible film 1b thinner than the sheet substrate 1a in which a large number of hollow protrusions a having a square or trapezoidal cross section are formed are laminated. Have The foamed cushioning material 1 is manufactured to have an arbitrarily long length, and is wound in a roll shape and handled. The lateral width is set according to the lateral width of the mold 2 described later.

【0015】 図2及び図3は、前記気泡性緩衝材1を使用したコンクリート型枠を示す。こ のコンクリート型枠は、定尺の合板2aとその裏面周囲に固着された補強用の木製 縦枠2b及び木製横枠2cとから成る縦長矩形状の型枠2の内面(合板側)に、両側 の平坦な縁部1B,1Bが当該型枠2の側面に回り込んだ状態に配置し、前記平 坦な縁部1B,1Bを木製縦枠2bの側面に脚の短いタッカー5…等で取り付け、 気泡性緩衝材1の上下両端部は、合板2aの表面にタッカー5…等を従来通り細か いピッチで打ち込んで取り付けて構成したものである。FIG. 2 and FIG. 3 show a concrete formwork using the foamed cushioning material 1. This concrete formwork has an inner surface (plywood side) of a vertically long rectangular formwork 2 composed of a standard-sized plywood 2a and a reinforcing wooden vertical frame 2b and wooden horizontal frame 2c fixed around the back surface thereof. The flat edges 1B, 1B on both sides are arranged so as to wrap around the side surface of the mold 2, and the flat edges 1B, 1B are attached to the side surface of the wooden vertical frame 2b with a tucker 5 having short legs, etc. Attachment, The upper and lower ends of the foamed cushioning material 1 are constructed by hammering the tacker 5 on the surface of the plywood 2a at a fine pitch as usual.

【0016】 このコンクリート型枠を、図5〜図8で説明した施工法に使用すれば、平坦縁 部1B,1Bが型枠2の側面に回り込んでいるため、隣接して配置されるコンク リート型枠の縦目地部分において、コンクリートのモルタル成分が気泡性緩衝材 1と合板2aとの間に浸入する虞れがない。 従って、タッカー5…等の打込みピッチを大きくして作業能率を向上しながら も、気泡性緩衝材1の側縁部がコンクリート内に埋め込まれることがなく、コン クリート品質を確保できるのである。When this concrete formwork is used in the construction method described in FIGS. 5 to 8, since the flat edges 1B, 1B wrap around the side surface of the formwork 2, the concrete forms to be arranged adjacent to each other. There is no risk that the mortar component of the concrete will enter between the cellular cushioning material 1 and the plywood 2a in the vertical joint portion of the reed form. Therefore, while improving the work efficiency by increasing the driving pitch of the tuckers 5, etc., the side edge of the foamed cushioning material 1 is not embedded in the concrete, and the concrete quality can be secured.

【0017】 図4は本考案の他の実施例を示す。この実施例は、平坦な縁部1B,1Bを木 製縦枠2bの裏面まで回り込ませ、当該縦枠2bの裏面にタッカー5…等で固定する ようにした点に特徴がある。その他の構成は、図2及び図3の実施例と同じであ る。FIG. 4 shows another embodiment of the present invention. This embodiment is characterized in that the flat edges 1B and 1B are wrapped around to the back surface of the wooden vertical frame 2b and fixed to the back surface of the vertical frame 2b with a tacker 5 ... The other structure is the same as that of the embodiment shown in FIGS.

【0018】[0018]

【考案の効果】[Effect of the device]

以上のように、本考案によれば、気泡性緩衝材を型枠に、凹凸面部両側の平坦 縁部が型枠の側面に回り込んだ状態に固定するため、隣接して配置されるコンク リート型枠の縦目地部分において、コンクリートのノロが気泡性緩衝材の裏面側 に浸入する虞れがなくなり、従って、タッカー等の打込みピッチを大きくして作 業能率を向上しながらも、気泡性緩衝材の側縁部がコンクリート内に埋め込まれ ることがなく、コンクリート品質を確保できる。 As described above, according to the present invention, since the foamed cushioning material is fixed to the mold in such a manner that the flat edges on both sides of the uneven surface portion wrap around the side surface of the mold, the concretes adjacent to each other are fixed. At the vertical joints of the formwork, there is no risk of concrete slag entering the back side of the foam cushioning material. Therefore, while increasing the work pitch by increasing the hammering pitch of the tacker, etc. The quality of concrete can be ensured because the side edge of the material is not embedded in the concrete.

【図面の簡単な説明】[Brief description of drawings]

【図1】第1考案の実施例を示す気泡性緩衝材の斜視図
である。
FIG. 1 is a perspective view of a foam cushioning material showing an embodiment of the first invention.

【図2】第2考案の実施例を示すコンクリート型枠の分
解斜視図である。
FIG. 2 is an exploded perspective view of a concrete formwork showing an embodiment of the second invention.

【図3】上記コンクリート型枠の要部断面図である。FIG. 3 is a sectional view of an essential part of the concrete formwork.

【図4】第2考案の他の実施例を示すコンクリート型枠
の要部断面図である。
FIG. 4 is a sectional view of an essential part of a concrete formwork showing another embodiment of the second invention.

【図5】モルタル層を有するコンクリート構造体の施工
法を説明するための要部の縦断側面図である。
FIG. 5 is a vertical cross-sectional side view of a main part for explaining a construction method of a concrete structure having a mortar layer.

【図6】図5に続く施工手順の説明図である。FIG. 6 is an explanatory diagram of a construction procedure following FIG.

【図7】図6に続く施工手順の説明図である。FIG. 7 is an explanatory diagram of a construction procedure following FIG.

【図8】図7に続く施工手順の説明図である。8 is an explanatory diagram of a construction procedure following FIG.

【図9】従来例の説明図である。FIG. 9 is an explanatory diagram of a conventional example.

【符号の説明】[Explanation of symbols]

1…気泡性緩衝材、1A…凹凸面部、1B…平坦な縁
部、2…型枠、a…中空突起。
DESCRIPTION OF SYMBOLS 1 ... Bubble-cushioning material, 1A ... Uneven surface part, 1B ... Flat edge part, 2 ... Form frame, a ... Hollow protrusion.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 片面に多数の中空突起が形成された凹凸
面部の両側に平坦な縁部を形成したことを特徴とする気
泡性緩衝材。
1. A foamed cushioning material, characterized in that flat edges are formed on both sides of an uneven surface portion having a large number of hollow projections formed on one surface.
【請求項2】 片面に多数の中空突起が形成された凹凸
面部の両側に平坦な縁部を形成した気泡性緩衝材を、型
枠の内面に、両側の平坦な縁部が当該型枠の側面に回り
込んだ状態に取り付けてあることを特徴とするコンクリ
ート型枠。
2. A foamed cushioning material having flat edges formed on both sides of an uneven surface portion having a large number of hollow protrusions formed on one surface thereof, and an inner surface of the form having a flat edge on both sides of the mold. A concrete formwork that is fitted around the side.
JP8493591U 1991-09-20 1991-09-20 Cellular cushioning material and concrete formwork using it Pending JPH0530343U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8493591U JPH0530343U (en) 1991-09-20 1991-09-20 Cellular cushioning material and concrete formwork using it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8493591U JPH0530343U (en) 1991-09-20 1991-09-20 Cellular cushioning material and concrete formwork using it

Publications (1)

Publication Number Publication Date
JPH0530343U true JPH0530343U (en) 1993-04-20

Family

ID=13844531

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8493591U Pending JPH0530343U (en) 1991-09-20 1991-09-20 Cellular cushioning material and concrete formwork using it

Country Status (1)

Country Link
JP (1) JPH0530343U (en)

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