JP2842092B2 - Surface treatment method for PC products by immediate demolding - Google Patents
Surface treatment method for PC products by immediate demoldingInfo
- Publication number
- JP2842092B2 JP2842092B2 JP4272078A JP27207892A JP2842092B2 JP 2842092 B2 JP2842092 B2 JP 2842092B2 JP 4272078 A JP4272078 A JP 4272078A JP 27207892 A JP27207892 A JP 27207892A JP 2842092 B2 JP2842092 B2 JP 2842092B2
- Authority
- JP
- Japan
- Prior art keywords
- product
- concrete
- finishing layer
- immediate demolding
- surface treatment
- 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.)
- Expired - Fee Related
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
- 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
- C04B2111/00336—Materials with a smooth surface, e.g. obtained by using glass-surfaced moulds
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、打設したコンクリート
に振動および加圧力を付加して即時脱型されるＰＣ製品
の表面処理方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface treatment method for a PC product which is immediately removed from a cast concrete by applying vibration and pressure to the concrete.
【０００２】[0002]
【従来の技術】従来、ＰＣ（プレキャストコンクリー
ト）製品、例えば、コンクリート管とか建築用のＰＣ柱
型枠等の中空状の製品を成形するに、このＰＣ製品の
内，外側に沿った形状を有する内型枠および外型枠を用
い、これら内，外型枠を略同心状に配置した後、両型枠
間の空間部内にコンクリートを打設し、爾後、コンクリ
ートが固化または硬化した時点で脱型するようになって
いる。2. Description of the Related Art Conventionally, when molding a PC (precast concrete) product, for example, a hollow product such as a concrete pipe or a PC column formwork for construction, the PC product has a shape along the inside and outside. Using the inner and outer forms, the inner and outer forms are arranged approximately concentrically, concrete is poured into the space between the two forms, and then removed when the concrete solidifies or hardens. Type.
【０００３】近年では、前記ＰＣ製品の製造効率を高め
るために、特公平１−１５３６１号公報（Ｂ２８Ｂ １
／０８）に開示されるように、成形用型枠にゼロスラン
プのコンクリートを充填して振動台にかけ、更にコンク
リートをプレスして加圧力を付加することによりコンク
リートの固化を早め、もって即時脱型を可能とするもの
が提案されている。In recent years, in order to improve the manufacturing efficiency of the PC product, Japanese Patent Publication No. Hei 1-15361 (B28B1) has been proposed.
/ 08), the mold for molding is filled with zero slump concrete and placed on a shaking table, and the concrete is pressed to apply a pressing force to accelerate the solidification of the concrete, thereby immediately removing the mold. What is possible is proposed.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、かかる
従来の即時脱型されたＰＣ製品では振動台で内型枠に加
振するため、ＰＣ製品の外側表面が粗面となる。このた
め、即時脱型によるＰＣ製品は、その表面を打放し仕上
げ状態で用いたり、塗装，クロス等の下地として用いる
のには適さない。そこで、従来では脱型後に養生して、
ＰＣ製品が硬化した後に表面仕上が行われていた。とこ
ろが、ＰＣ製品の硬化後に表面仕上げを行うため、経時
的に本体部分と表面仕上げ層との間に肌別れを生じ、延
いては、この表面仕上げ層が剥離して脱落する恐れがあ
るという課題があった。However, in such a conventional PC product which has been immediately removed from the mold, the outer surface of the PC product is rough because the vibration is applied to the inner mold frame by the shaking table. For this reason, the PC product obtained by immediate demolding is not suitable for use in a finished state by exposing the surface or as a base for painting, cloth, and the like. Therefore, conventionally, after demolding, curing
Surface finishing had been performed after the PC product was cured. However, since the surface finishing is performed after the curing of the PC product, the separation between the main body portion and the surface finishing layer occurs over time, which may cause the surface finishing layer to peel off and fall off. was there.
【０００５】そこで、本発明はかかる従来の課題に鑑み
て、ＰＣ製品の表面処理を即時脱型後直ちに行うことに
より、この表面処理を強固にかつ綺麗に仕上げることが
できる即時脱型によるＰＣ製品の表面処理方法を提供す
ることを目的とする。In view of the above-mentioned problems, the present invention provides a PC product by immediate demolding in which the surface treatment of the PC product is immediately performed after immediate demolding, whereby the surface treatment can be firmly and neatly finished. It is an object of the present invention to provide a surface treatment method.
【０００６】[0006]
【課題を解決するための手段】かかる目的を達成するた
めに本発明は、即時脱型により製造されるＰＣ製品にお
いて、即時脱型後、直ちにＰＣ製品の表面にセメントペ
ーストまたは薄塗り左官材等による表面仕上げ層を平滑
に塗布し、次いでこの表面仕上げ層を蒸気養生して表面
処理する。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a PC product manufactured by immediate demolding, and immediately after the immediate demolding, a cement paste or a thin plaster material is applied to the surface of the PC product. Is applied smoothly, and then this surface finishing layer is subjected to steam curing and surface treatment.
【０００７】[0007]
【作用】以上の即時脱型によるＰＣ製品の表面処理方法
にあっては、即時脱型後、直ちにＰＣ製品の表面に表面
仕上げ層を塗布することにより、ＰＣ製品のセメントの
凝結が開始されない状態でこの表面仕上げ層が塗布され
ることになり、表面仕上げ層を形成するセメントペース
トまたは薄塗り左官材は、ＰＣ製品の表面と一体化され
る。そして、更に前記表面仕上げ層を蒸気養生すること
により、ＰＣ製品の表面との一体化が確実に行われて、
接着界面の発生による肌別れ現象を防止することができ
る。According to the above-described method for treating a surface of a PC product by immediate demolding, immediately after the immediate demolding, a surface finish layer is applied to the surface of the PC product so that the setting of the cement of the PC product does not start. And the cement paste or the thin plastering material forming the surface finishing layer is integrated with the surface of the PC product. And furthermore, by steam curing the surface finishing layer, integration with the surface of the PC product is reliably performed,
It is possible to prevent the skin separation phenomenon due to the generation of the bonding interface.
【０００８】[0008]
【実施例】以下、本発明の実施例を添付図面を参照して
詳細に説明する。図１から図３は本発明にかかる即時脱
型によるＰＣ製品の表面処理方法の一実施例を示し、図
１はＰＣ製品成形用型枠による成型工程の一実施例を示
す説明図、図２はＰＣ製品の一実施例を示す斜視図、図
３はＰＣ製品の表面処理手順を順を追って示す説明図で
ある。Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIGS. 1 to 3 show an embodiment of a surface treatment method for a PC product by immediate demolding according to the present invention. FIG. 1 is an explanatory view showing an embodiment of a molding step using a mold frame for molding a PC product. FIG. 3 is a perspective view showing an embodiment of a PC product, and FIG. 3 is an explanatory diagram showing the surface treatment procedure of the PC product in order.
【０００９】即ち、本実施例のＰＣ製品として建築用材
の柱用ＰＣ型枠１０（図２参照）を例にとって示し、こ
の柱用ＰＣ型枠１０は図１に示す成形用型枠１２を用い
て成形される。成形用型枠１２はそれぞれ断面矩形状の
内型枠１４と外型枠１６とを備え、これら内，外型枠１
４，１６を同軸上に嵌合配置して、それら両者間に形成
される空間部１８内にホッパー２０からコンクリートが
打設される。前記外型枠１４には図示しない加振機によ
って振動が付加されるようになっており、打設されたコ
ンクリートはこの付加振動により締め固めが行われる。
また、このように加振機によるコンクリートの締め固め
を行うと共に、加圧機２４を下降してコンクリートに加
圧力を付加することにより、コンクリートが圧密に加圧
され、コンクリートの固化が促進される。そして、この
ように加振および加圧により固化された柱用ＰＣ型枠１
０は、生乾き状態で内，外型枠１４，１６を上方に引き
抜くようにして即時脱型される。また、脱型された柱用
ＰＣ型枠１０は、図２に示したように断面矩形状の中空
体として成形される。That is, as an example of a PC product of this embodiment, a pillar PC form 10 (see FIG. 2) of building material is used, and this pillar PC form 10 uses a molding form 12 shown in FIG. Molded. The molding frame 12 includes an inner frame 14 and an outer frame 16 each having a rectangular cross section.
4 and 16 are fitted and arranged coaxially, and concrete is cast from a hopper 20 into a space 18 formed between them. Vibration is applied to the outer frame 14 by a vibrator (not shown), and the cast concrete is compacted by the additional vibration.
In addition, the concrete is compacted by the vibrator as described above, and the pressing machine 24 is lowered to apply a pressing force to the concrete, whereby the concrete is pressurized compactly and the solidification of the concrete is promoted. Then, the pillar PC form 1 solidified by the vibration and the pressure as described above.
No. 0 is immediately removed from the mold by pulling the inner and outer mold frames 14 and 16 upward in a dry state. Moreover, the detached pillar PC frame 10 is formed as a hollow body having a rectangular cross section as shown in FIG.
【００１０】ここで、本実施例では図３に示したよう
に、柱用ＰＣ型枠１０を即時脱型した（工程）後、直
ちにこの柱用ＰＣ型枠１０の粗面となった表面１０ａ
に、セメントペーストまたは薄塗り左官材を用いた表面
仕上げ層３０を、こて，ローラまたは吹き付け等により
平滑に塗布する（工程）。次いで、この表面仕上げ層
３０を蒸気養生して一体化する（工程）。In this embodiment, as shown in FIG. 3, after the column PC frame 10 is immediately removed from the mold (step), the roughened surface 10a of the column PC frame 10 is immediately obtained.
Next, a surface finishing layer 30 using a cement paste or a thin plaster is applied smoothly by a trowel, a roller, spraying or the like (step). Next, the surface finishing layer 30 is steam-cured and integrated (step).
【００１１】従って、本実施例ではかかる方法により即
時脱型された柱用ＰＣ型枠１０を表面処理することによ
り、生乾き状態でコンクリートの凝結が開始されない時
に表面仕上げ層３０が塗布されるため、この表面仕上げ
層３０として用いたセメントペーストまたは薄塗り左官
材は化学的にも一体化される。そして、更に表面仕上げ
層３０を蒸気養生することにより、この表面仕上げ層３
０は柱用ＰＣ型枠１０の表面と完全に一体化される。従
って、経時的に前記表面仕上げ層３０が剥離されるのを
防止し、前記柱用ＰＣ型枠１０を表面仕上げ層３０のま
まで用いた場合、または表面仕上げ層３０の表面を塗装
とかクロスの下地として用いた場合にも、その仕上げ面
を長期に亘って綺麗な状態に維持することができる。Therefore, in this embodiment, the surface finishing layer 30 is applied when the concrete setting of the pillar PC form 10 immediately removed from the mold by such a method is not started in a dry state when the setting of the concrete is started. The cement paste or thin plaster used as the surface finishing layer 30 is also chemically integrated. Then, the surface finishing layer 30 is further steam-cured, whereby the surface finishing layer 3 is cured.
0 is completely integrated with the surface of the pillar PC frame 10. Therefore, the surface finishing layer 30 is prevented from being peeled off with time, and when the pillar PC frame 10 is used as it is as the surface finishing layer 30, or when the surface of the surface finishing layer 30 Even when used as a base, the finished surface can be maintained in a beautiful state for a long time.
【００１２】尚、本実施例ではＰＣ製品として柱用ＰＣ
型枠１０に例を取って示したが、これに限ることなく他
の即時脱型されるＰＣ製品に本発明を適用できることは
いうまでもない。In this embodiment, a pillar PC is used as a PC product.
Although the form 10 is shown as an example, it goes without saying that the present invention is not limited to this and can be applied to other PC products that are immediately removed from the mold.
【００１３】[0013]
【発明の効果】以上説明したように、本発明にかかる即
時脱型によるＰＣ製品の表面処理方法にあっては、即時
脱型後、直ちにＰＣ製品の表面に表面仕上げ層を塗布
し、更に、この表面仕上げ層を蒸気養生したので、この
表面仕上げ層をＰＣ製品の表面と確実に一体化させるこ
とができ、接着界面の発生による肌別れ現象を防止する
ことができる。従って、ＰＣ製品の製造能率を著しく向
上できる即時脱型にあっても、平滑な表面を簡単に得る
ことができるという優れた効果を奏する。As described above, in the method for treating a surface of a PC product by immediate release according to the present invention, a surface finish layer is applied to the surface of the PC product immediately after immediate release, and Since this surface finishing layer is steam-cured, the surface finishing layer can be surely integrated with the surface of the PC product, and the skin separation phenomenon due to the generation of the adhesive interface can be prevented. Therefore, an excellent effect that a smooth surface can be easily obtained even in the case of immediate demolding in which the production efficiency of PC products can be remarkably improved.
【図１】本発明に用いられるＰＣ製品成形用型枠による
成型工程の一実施例を示す説明図である。FIG. 1 is an explanatory view showing one embodiment of a molding process using a PC product molding frame used in the present invention.
【図２】本発明が適用されるＰＣ製品の一実施例を示す
斜視図である。FIG. 2 is a perspective view showing one embodiment of a PC product to which the present invention is applied.
【図３】本発明の表面処理手順を順を追って示す説明図
である。FIG. 3 is an explanatory diagram showing a surface treatment procedure of the present invention in order.
１０ 柱用ＰＣ型枠（ＰＣ製品） １２ 成形用型枠 １４ 内型枠 １６ 外型枠 ２４ 加圧機 ３０ 表面仕上げ層 Reference Signs List 10 PC formwork for pillar (PC product) 12 Molding form 14 Inner formwork 16 Outer formwork 24 Press machine 30 Surface finish layer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 松村 律雄 東京都千代田区神田司町２丁目３番地 株式会社大林組東京本社内 (58)調査した分野(Int.Cl.6，ＤＢ名) B28B 11/04 C04B 40/02──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Ritsuo Matsumura 2-3-3 Kandaji-cho, Chiyoda-ku, Tokyo Obayashi Corporation Tokyo Head Office (58) Field surveyed (Int. Cl. 6 , DB name) B28B 11 / 04 C04B 40/02
Claims (1)
いて、即時脱型後、直ちにＰＣ製品の表面にセメントペ
ーストまたは薄塗り左官材等による表面仕上げ層を平滑
に塗布し、次いでこの表面仕上げ層を蒸気養生すること
を特徴とする即時脱型によるＰＣ製品の表面処理方法。In a PC product manufactured by immediate demolding, immediately after the immediate demolding, a surface finishing layer made of cement paste or a thin plaster material is smoothly applied to the surface of the PC product immediately, and then the surface finishing layer is formed. Surface treatment method for PC products by immediate demolding, characterized by steam curing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4272078A JP2842092B2 (en) | 1992-10-09 | 1992-10-09 | Surface treatment method for PC products by immediate demolding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4272078A JP2842092B2 (en) | 1992-10-09 | 1992-10-09 | Surface treatment method for PC products by immediate demolding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06122114A JPH06122114A (en) | 1994-05-06 |
| JP2842092B2 true JP2842092B2 (en) | 1998-12-24 |
Family
ID=17508788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4272078A Expired - Fee Related JP2842092B2 (en) | 1992-10-09 | 1992-10-09 | Surface treatment method for PC products by immediate demolding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2842092B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7300951B2 (en) * | 2019-09-27 | 2023-06-30 | 清水建設株式会社 | How to build structures |
-
1992
- 1992-10-09 JP JP4272078A patent/JP2842092B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06122114A (en) | 1994-05-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |