JP5899546B2 - Concrete surface forming construction method with crack prevention groove and frame used therefor - Google Patents
Concrete surface forming construction method with crack prevention groove and frame used therefor Download PDFInfo
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- JP5899546B2 JP5899546B2 JP2013032206A JP2013032206A JP5899546B2 JP 5899546 B2 JP5899546 B2 JP 5899546B2 JP 2013032206 A JP2013032206 A JP 2013032206A JP 2013032206 A JP2013032206 A JP 2013032206A JP 5899546 B2 JP5899546 B2 JP 5899546B2
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Description
本発明はコンクリート面に生じるひび割れを未然に防止したり、デザイン性を高めるために、土間コンクリートや舗装面に不連続部、溝等を形成する施工方法とそれに用いる躯体に関するものである。 The present invention relates to a construction method for forming discontinuities, grooves and the like on soil concrete or a paved surface, and a frame used for the same, in order to prevent cracks generated on the concrete surface and to improve design.
従来打設されたコンクリートに生じるひび割れを未然に防止するためには、溝を形成するために多数の型枠を断面が樋状となるように複雑に組み付けた後にコンクリートを打設してコンクリート面へ不連続部または底部が連続している凹状の溝を形成していた。型枠は通常板材であり、施工場所、施工面積によって煩雑な作業と、施工現場の仕様に合う複数の板材を準備して、用いることを余儀なくされている。特開平11-256819号にみられるような、コンクリートの収縮低減剤を、型枠 の表面に塗布し、その後に塗布面に接してコンクリートを打設して行う工法とか、特開2006-052549号のようにひび割れ自体の発生を防止することに代えて、コンクリート構造物の中でひび 割れが発生しても強度や耐久の点で問題が無い箇所に集中的にひび割れを発生させるひび割れ誘発技術が提案されているが、コスト高で実用的でない。
しかも、最近では、家庭用駐車場などで、固化したコンクリート面の不連続部、または底部が連続している溝に美観を重んじて鑑賞性に優れたヒゲ状の植物を筋状に植える例が多くなってきた。また、デザイン性を高めるために溝が曲線にするようになってきた。このような美観の多様性に応えるためには、複数の板材を準備して型枠を断面が樋状となるように組付けるといった作業が益々煩雑となり、必要な板材が増えるだけでなく、工期の長期化、施工費の増加等を招いていた。
In order to prevent the cracks that occur in the conventionally placed concrete, in order to form a groove, a large number of molds are assembled in a complex shape so that the cross-section has a bowl shape, and then the concrete is cast and the concrete surface A concave groove having a continuous discontinuous portion or bottom portion was formed. The formwork is usually a plate material, and complicated work depending on the construction place and construction area and a plurality of plate materials that meet the specifications of the construction site must be prepared and used. As shown in Japanese Patent Laid-Open No. 11-256819, a concrete shrinkage reducing agent is applied to the surface of the formwork, and then the concrete is placed in contact with the coated surface. Instead of preventing the cracks themselves as described above, there is a crack-inducing technology that intensively generates cracks where there is no problem in strength and durability even if cracks occur in a concrete structure. Proposed, but expensive and impractical.
Moreover, recently, there is an example of planting a beard-like plant with excellent appreciation in the form of a streak in a discontinuous part of a solidified concrete surface or a groove with a continuous bottom in a parking lot for home use. It has increased. In addition, the groove has become a curve in order to improve the design. In order to respond to such a variety of aesthetics, the work of preparing a plurality of plate materials and assembling the formwork so that the cross section has a bowl shape becomes more and more complicated, and not only the necessary plate materials increase, but also the construction period This has resulted in longer construction and increased construction costs.
また、特開2007-218047号にみられるような長尺物の使用は何度も使用に耐えるとうたってはいるものの実際に現場で使用すると打設したコンクリートが長尺物に付着固化して取り除きが困難である。無理をして取り除くには、長尺物の途中がしばしば千切れるし、取り除く際に長尺物の全体に抜く力が掛ってコンクリート面に剥離力が働く。そこで、コンクリート面の上面を剥離力に打ち勝つ型押しの冶具で押圧する必要性が生じる。このように使用が面倒であったり、コンクリートが長尺物に付着固化するなどにより再使用には向いていないし、現場作業中に可とう性が邪魔になって作業性が落ちてしまう。
とりわけ、溝を形成する長尺物の全体を取り除くと、コンクリートや舗装面に形成された溝の内部に大きな容積の空間が形成され、玉石等の装飾のための資材を充填する際に資材を多量に必要とする。更に、溝にリュウノヒゲ等の植物を植える施工の場合にも、溝の内部に底まで栽培土を充填する必要があって多量の培養土を必要とする。これらの理由のために安価で作業性良く施工できるものになっていない。
In addition, the use of long objects such as those disclosed in Japanese Patent Application Laid-Open No. 2007-218047 is said to endure the use many times, but when actually used on site, the cast concrete adheres to the long objects and is solidified and removed. Is difficult. To remove it forcibly, the middle of the long object is often cut off, and when it is removed, the pulling force is applied to the entire long object, and the peeling force acts on the concrete surface. Therefore, it is necessary to press the upper surface of the concrete surface with an embossing jig that overcomes the peeling force. Thus, the use is troublesome, and the concrete is not suitable for reuse because it adheres and solidifies to a long object, and the flexibility is disturbed during field work, and the workability is lowered.
In particular, if the entire long object that forms the groove is removed, a large volume of space is formed inside the groove formed on the concrete or pavement surface. Need a lot. Furthermore, in the case of constructing a plant such as a rhino beard in the groove, it is necessary to fill the inside of the groove with cultivation soil to the bottom, and a large amount of cultivation soil is required. For these reasons, it is not cheap and can be constructed with good workability.
解決しようとする問題点は、コンクリートに生じるひび割れを未然に防止するためや、美観をよくするための溝を、複雑な型枠組み付け作業を必要としないで、施工能率を上げ、更に、使用資材に無駄のない施工方法とそれに用いる躯体を提供する。 The problem to be solved is to prevent the cracks that occur in the concrete and to improve the construction efficiency without using complicated moldwork for the grooves for improving the appearance. The construction method without waste and the frame used for it are provided.
コンクリート面形成施工に際し、コンクリートに溝を形成する部分へベース層とその上部の剥離可能層とからなる多層の躯体を上部の剥離可能層が露出するように配置し、コンクリート固化後にベース層以外の剥離可能層の一部または全てを剥離除去して、型枠を用いたり型枠を取り除く作業をすることなく、溝をコンクリートに形成するようにしたことを特徴とするコンクリート面への溝の形成施工方法である。 When constructing the concrete surface, a multi-layered frame consisting of a base layer and a peelable layer above it is placed in the part where the groove is formed in the concrete so that the peelable layer on the top is exposed. Groove formation on concrete surface, where a part or all of the peelable layer is peeled and removed to form a groove in the concrete without using the formwork or removing the formwork It is a construction method.
また、このコンクリート面形成施工に用いる躯体は、ベース層とその上に剥離可能層を多層で形成したもので、剥離可能層の幅がコンクリートに形成する溝の幅と略同じである。剥離可能層はコンクリート固化後に溝が必要な深さとなるように多層の一部を剥離除去するためにベース層に弱く接着させるとか、剥離可能層自体を多層に重畳させてもよい。ベース層とその上部の剥離可能層とは、接着以外に物理的に重ねたものでもよい。また、ベース層と剥離可能層とが凹凸で重なったものも使用できる。 Moreover, the frame used for this concrete surface formation construction is a base layer and a peelable layer formed in multiple layers thereon, and the width of the peelable layer is substantially the same as the width of the groove formed in the concrete. The peelable layer may be weakly adhered to the base layer in order to peel and remove a part of the multilayer so that the groove has a required depth after solidification of the concrete, or the peelable layer itself may be superimposed on the multilayer. The base layer and the peelable layer on the base layer may be physically stacked in addition to adhesion. Moreover, the thing which the base layer and the peelable layer overlapped with the unevenness | corrugation can also be used.
ベース層と剥離可能層の材質としては、コンクリート打設時の荷重に耐えるものであればよく、合成樹脂(例えばポリエチレン、ポリスチレン、ポリウレタン等発泡体)、紙(例えば段ボール)、ゴム等を挙げることができる。 The material of the base layer and the peelable layer may be any material that can withstand the load when placing concrete, and includes synthetic resins (for example, foams such as polyethylene, polystyrene, and polyurethane), paper (for example, cardboard), rubber, and the like. Can do.
躯体のベース層に貫通穴を設けて、排水可能にするとか、下部の土壌基盤への植物の根張りを可能にしてもよい。 A through-hole may be provided in the base layer of the enclosure to allow drainage, or to allow plant rooting to the lower soil base.
コンクリート面形成施工に際し、コンクリートに生じるひび割れを未然に防止するためや、美観をよくするための溝を、型枠組を必要としないで形成することができ、しかも、簡易で、施工能率を上げ、更に使用資材の無駄が少なくなる。 In concrete surface formation construction, it is possible to form grooves for preventing cracks that occur in the concrete and to improve the appearance without the need for formwork, and it is simple and increases construction efficiency. Furthermore, the waste of used materials is reduced.
図５〜７にみられるように、本発明の施工方法は土間コンクリートや舗装面に不連続部や溝６を形成する。ここにいう不連続部いうのはコンクリートや舗装面に完全に溝を形成するのではなく、溝の底部に一部コンクリートや舗装素材が存在して土間コンクリートや舗装面の表面に不連続部がある状態をいう。不連続部や溝６を形成することを本発明ではコンクリート面形成施工と称しており、躯体１はベース層２とその上に剥離可能層３を多層で形成した構造である。躯体１はコンクリート面に形成する仕様によって直線であっても曲線であってもよい。
躯体１はベース層２の厚みとその上の剥離可能層３で厚みが適宜変更できる。剥離可能層３は一枚であってもよいし、玉石等の充填素材の大きさや植える植物によって層数を変えることができる。剥離可能層の幅がコンクリートに形成する溝の幅と略同じである。
As seen in FIGS. 5 to 7, the construction method of the present invention forms discontinuities and grooves 6 on the soil concrete or the paved surface. The discontinuity here does not completely form a groove in the concrete or pavement surface, but some concrete or pavement material exists at the bottom of the groove, and there is a discontinuity on the surface of the soil concrete or pavement surface. A certain state. In the present invention, the formation of discontinuous portions and grooves 6 is referred to as concrete surface forming construction, and the casing 1 has a structure in which a base layer 2 and a peelable layer 3 are formed in multiple layers thereon. The frame 1 may be a straight line or a curved line depending on the specifications formed on the concrete surface.
The thickness of the casing 1 can be appropriately changed by the thickness of the base layer 2 and the peelable layer 3 thereon. The peelable layer 3 may be a single layer, or the number of layers can be changed depending on the size of a filling material such as cobblestone or the plant to be planted. The width of the peelable layer is substantially the same as the width of the groove formed in the concrete.
図３に示すように本発明ではコンクリート面形成に際して躯体１を地盤４上に用い、適宜固定した後に図４に示すように躯体１を除いた部分にコンクリート５を打設する。その後、剥離可能層３を必要とする深さとなるように剥離して(図２、図７に例示)溝６を形成する。コンクリート固化に先立って溝の上部を面取り(溝の開放端部角をバリ取り、アール加工)作業した後に躯体の多層の一部を剥離除去するようにするとよい。形成した溝６の内部には植物７と栽培土８が充填される(図５に例示)。図５は本発明の施工を植栽仕様として用いた例である。 As shown in FIG. 3, in the present invention, when the concrete surface is formed, the frame 1 is used on the ground 4, and after being appropriately fixed, the concrete 5 is placed in a portion excluding the frame 1 as shown in FIG. 4. Thereafter, the peelable layer 3 is peeled off to a required depth (illustrated in FIGS. 2 and 7) to form the groove 6. Prior to solidification, the upper part of the groove may be chamfered (deburred at the open end corner of the groove and rounded), and then a part of the multilayer of the frame may be peeled off. The inside of the formed groove 6 is filled with plants 7 and cultivation soil 8 (illustrated in FIG. 5). FIG. 5 shows an example in which the construction of the present invention is used as a planting specification.
本発明の施工を玉石充填仕様とする例を示すと、図６に示すように、剥離可能層３の一部の層を剥離して玉石９等の充填材の大きさや径に合わせて溝６の深さを調整することができる。剥離可能層３の一部の層を残すと充填する玉石９の節減ができる。 An example in which the construction of the present invention is a cobblestone filling specification is shown in FIG. 6, as shown in FIG. 6, a part of the peelable layer 3 is peeled off to match the size and diameter of the filler such as cobblestone 9. The depth of can be adjusted. If a part of the peelable layer 3 is left, the cobblestone 9 to be filled can be saved.
１ 躯体
２ ベース層
３ 剥離可能層
４ 地盤
５ コンクリート
６ 溝
７ 植物
８ 栽培土
９ 玉石
DESCRIPTION OF SYMBOLS 1 Frame 2 Base layer 3 Peelable layer 4 Ground 5 Concrete 6 Groove 7 Plant 8 Cultivated soil 9 Cobblestone
Claims (3)
躯体の剥離可能層が多層で形成され、コンクリート固化後に溝が必要な深さとなるように前記多層のうちの一部の剥離可能層を全て剥離除去するようにしたことを特徴とするコンクリート面へのひび割れ防止溝の形成施工方法。When constructing discontinuities and grooves to prevent cracks in the concrete surface of the soil, the upper part of the multi-layered frame consisting of a base layer and a peelable layer above it is formed in the part where grooves are formed in the concrete. Place the peelable groove on the concrete without using the formwork or removing the formwork by placing the peelable layer other than the base layer after concrete solidification, and removing it. To form,
To the concrete surface, wherein the peelable layer of the casing is formed of multiple layers, and all the peelable layers of the multilayer are peeled and removed so that the grooves have the required depth after solidification of the concrete. Forming method of crack prevention groove.
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| JP2016036365A Division JP2016128647A (en) | 2016-02-08 | 2016-02-08 | Construction method for forming cracking prevention groove in concrete surface, and building frame for use in the same |
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| JP5899546B2 true JP5899546B2 (en) | 2016-04-06 |
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| JPS6457246U (en) * | 1987-10-02 | 1989-04-10 | ||
| JP2913188B2 (en) * | 1989-11-15 | 1999-06-28 | 秀晴 長田 | Formwork materials and surface treatment methods for buildings |
| JP2000110334A (en) * | 1998-10-09 | 2000-04-18 | Takeshige Shimonohara | Permeable block and its manufacture |
| JP2006063788A (en) * | 2004-07-30 | 2006-03-09 | Fukuvi Chem Ind Co Ltd | Removably attaching device for veranda side ditch form and form using the same |
| JP5055998B2 (en) * | 2006-12-18 | 2012-10-24 | 株式会社大林組 | Joint members and buildings |
| JP4678557B2 (en) * | 2008-04-04 | 2011-04-27 | 紀彦 守安 | Concrete crack prevention groove forming body |
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