JP5342773B2 - Forming form for waterproofing treatment and end treatment structure of waterproofing layer using it - Google Patents

Description

The present invention includes, for example, rooftop parapets, external waist walls, equipment roofs for pulling in pipes provided through rooftop slabs, work pieces such as foundations for fixing lightning rods and TV antennas, and manholes. The present invention relates to a waterproofing driving form such as an opening and an end processing structure of a waterproof layer using the same.

Conventionally, these workpieces are commonly used as protrusions (hereinafter referred to as “water draining protrusions”) in order to raise a waterproof layer on the side surface and seal the ends of the waterproof layer. In general, when constructing a workpiece with concrete, a complex formwork is formed and this projection is formed integrally with the workpiece. Yes. Also,
In many cases, a drain groove is formed on the lower surface of the protrusion.

However, the formwork forming the projecting portion has a complicated shape, is complicated to form, requires not only a lot of skill and labor, but also removes the crosspiece that forms the draining groove when removing the formwork. There was a problem to forget. Moreover, since these are small-scale workpieces, the concrete form panel (panel) is cut into small pieces, so the removed formwork cannot be diverted to others and must be discarded as waste material. There was a need for improvement.

However, a novel technique for solving the problems of these conventional techniques has been proposed in Patent Document 2 described later. In this method, a cement-shaped composition is used to form a protruding portion in advance,
This is retrofitted with bolts and nuts to the side of a workpiece such as a parapet.

Japanese Patent Laid-Open No. 06-57934 Japanese Patent Laid-Open No. 07-62819

The technique proposed in this Patent Document 2 does not require a complicated mold for forming the protrusion as in the prior art, and labor and time for forming the mold on the site and the cost have been reduced. Therefore, labor for attaching the cementitious composition for forming the protrusions is generated. Moreover, there is a risk that rainwater will permeate from the joint surface between the workpiece and the cementitious composition, and new work such as the need for sealing to join the workpiece and the cementitious composition will also occur as a whole. Has the problem of not necessarily reducing labor, time and costs.

The present invention was developed after earnest research to eliminate these problems.The method of adopting a conventional formwork was modified to provide a recessed formwork for forming a protrusion. Pre-production,
This was carried out by adopting a so-called driving form, which is said to be driven integrally when forming a workpiece such as a parapet. The results have been achieved as expected and are proposed here.

Therefore, the object of the present invention basically does not require a complicated formwork, requires no skill,
The conventional method is to form a formwork for obtaining a workpiece and then pour concrete into it, so that the end treatment part of the waterproof layer can be formed, and labor, time and cost can be greatly reduced.

In order to solve the above technical problem, a waterproofing driving form according to claim 1 of the present invention is suspended downward from a horizontal upper wall and an inner back portion thereof in a longitudinal sectional shape. The hanging wall is integrally provided with an inclined wall that becomes lower from the lower end of the hanging wall toward the front,
The upper surface of the horizontal upper wall is provided with a return portion formed by a convex portion protruding upward in the middle in the front-rear direction, and the front side of the upper surface of the horizontal upper wall is formed as an inclined surface that is lower on the tip side. While
At least the drooping wall has a hole formed so that the separator can be inserted and removed.
Because
It is integrally molded from a cementitious composition, and is formed into a rectangular shape.
It is a water-proofing casting form frame characterized by chamfering the outer surfaces of the four corners .

Such a waterproof mold for forming a mold is detachably attached to an inner surface of a mold for forming a workpiece, and then formed for forming the workpiece. After the concrete has been placed in the mold for forming the workpiece, the mold is embedded, and after the concrete has solidified, the mold for forming the workpiece is built. by removing the frame, workpieces having the end section of the waterproof layer, i.e. shed, workpieces such as basis for fixing the avoid Kaminarihari or TV antenna is formed.

Accordingly, the waterproofing casting formwork according to claim 1 of the present invention forms a formwork for constructing a workpiece, and by simply pouring concrete into here, an end treatment part of the waterproofing layer is obtained, Moreover, it is not necessary to make complicated formwork and skill is not required. In addition, there is no need to install a new cementitious composition after construction of the workpiece, and it goes without saying that labor is reduced.
Time and cost reduction can be achieved at once.

In addition, it is possible to prevent rainwater and the like from penetrating from the concrete joints well, eliminating the need for sealing work at the joints, and further reducing labor, time and cost.

Moreover, the formwork used as the edge processing part of this waterproof layer can be appropriately attached to the formwork for constructing the workpiece, and the attaching work can be performed efficiently.

Furthermore, implantation formwork for waterproofing, as claimed in claim 1, is formed in rectangle, what comprising chamfered desirable at the four corners the outer surface of the inclined wall. Those of rectangle is shed, also because it is possible to use conveniently, such as the foundation to secure the lightning rod or TV antenna.

Further, according to the waterproof layer end treatment structure according to claim 2 , the waterproof treatment driving mold is attached to the inside of the mold for constructing the workpiece, and the edge processing section is attached to the workpiece by the driving mold. Since the construction of the end treatment part of the waterproof layer can be obtained with a very simple work process that only constructs the formwork of the workpiece, the labor is greatly reduced, and further The construction period can be shortened.

And according to the edge part processing structure of the waterproof layer which concerns on Claim 2 , the effort of mold formation other than said effect can be reduced.
In other words, it takes time and effort to cut and assemble long-lasting water-proofing formwork into a rectangular shape, but it can greatly increase the efficiency of work on site by factory production in advance. it can. Moreover, since this waterproofing driven formwork can be placed on the upper end surface of the face wood provided on the formwork for constructing the work piece at each corner portion, Just by setting up the face wood according to the height of the placement formwork, this waterproofing placement formwork can be easily installed by one worker, and after that, it only has to be fixed with a separator and a foam tie. In addition, there is a specific effect that the installation work of the waterproofing casting formwork at a predetermined position is greatly improved.

Hereinafter, the present invention will be described in more detail with reference to examples. However, the scope of the present invention is not limited to such examples.

Example 1
In this first embodiment, a case where the present invention is applied to form a waterproof layer end treatment portion by being recessed in a substantially trapezoidal shape on the side surface of a parapet that is an example of a workpiece provided on the rooftop will be described. To do.

FIG. 1 is a perspective view showing a case where a waterproofing casting mold according to the present invention is formed as a long object, in which 1 is a mold.
The form frame 1 has a vertical cross-sectional shape with a horizontal upper wall 2, a hanging wall 3 that vertically hangs downward from the inner back thereof, and a lower end from the lower end to the lower end of the hanging wall 3. An inclined wall 4, a separator through-hole 5 disposed at a predetermined interval in the hanging wall 3, a drain joint 6 formed in a recess in the lower surface of the front end of the horizontal upper wall 2, and the horizontal upper wall 2 A portion corresponding to one third of the entire depth from the front end is formed on the inclined surface 2A which is lower on the front end, and from the rear end edge of the inclined surface 2A on the upper surface of the horizontal upper wall 2 An uneven trapezoidal convex portion 7 that is integrally raised upward is provided integrally at a position that extends over the innermost portion.

This mold 1 is a cement-based composition, specifically, for example, glass fiber reinforced cement (GR
It is integrally molded using C) as a material.

As is apparent from FIG. 2, the front end of the horizontal upper wall 2 and the lower end (front end) of the inclined wall 4 are dimensioned in advance so as to be located on the same vertical line. As shown in FIG.
This is to be on the same vertical virtual plane as the inner wall surface P1.

Such a long formwork 1 inevitably has an unequal trapezoidal recessed portion 8 formed below the horizontal upper wall 2.

Next, a method of constructing an end treatment portion of a waterproof layer called a so-called projecting portion on the inner wall surface P1 of the parapet P using the long form 1 formed in accordance with FIG. 2 will be described. Detailed description.

As shown in FIG. 2, first, the separators 10 are inserted through the separator through holes 5 of the mold 1.
Next, the mold 1 is applied to the inner surface of the inner mold 9A on the concrete placement side of the mold 9 for constructing the parapet P, and the other end of the separator 10 is placed on the inner mold 9A.
The separator 10 is inserted into the separator through-hole 11 provided on the side, and the separator 10 is fastened with a foam tie (registered trademark) 12 (a short-sized separator is also called a shaft foot, but in this specification, a short-sized separator is also a Simply called a separator).

The parapet construction space S is obtained by using the separator 13 and the foam tie (registered trademark) 14 for the inner mold 9A and the outer mold 9B thus obtained. Next, the concrete C is poured into the obtained parapet construction space S, and the molds 9A and 9B on both the inside and outside are waited for solidification.
Remove. After removing the formwork 9, as shown in FIG. 3, the parapet P having the trapezoidal recessed portion 8 with unequal sides on the inner surface is obtained. Further, the separator 10 holding the mold 1 on the inner mold 9A for constructing the parapet is removed from the separator through hole 5 of the hanging wall 3.

As for the obtained parapet P, the formwork 1 formed in the long thing has the recessed part 8 in the parapet P.
The front ends of the horizontal upper wall 2 and the inclined wall 4 are on the same virtual vertical plane as the outer surface of the parapet P, and are embedded integrally in the parapet P.

Subsequently, the outer surface is prepared by surface treatment F, for example, pressing a mortar iron. Moreover, the waterproof sheet 15 is started up from the roof surface on the lower surface of the inner surface P1 of the parapet P. The waterproof sheet 15 is installed so as to cover the end treatment portion of the waterproof layer, that is, the surface of the sloping wall 3 of the mold 1 so as to further cover the surface of the drooping wall 3. Water-proofing is performed by the sealing material 16 at corners with the lower surface of the inner back portion of the upper wall 2 to perform waterproofing.

Therefore, the end treatment portion of the waterproof layer referred to in the present invention is a protruding portion including the recessed portion 8 formed by the horizontal upper wall 2, the hanging wall 3, and the inclined wall 4 of the casting mold 1. P2
(Described later).

2 and 3, a member denoted by reference numeral 17 is a reinforcing bar disposed inside the parapet P.

Since the mold 1 formed as a long object configured in this manner is detachably attached to the mold 9 for constructing the parapet P, it can be used as a driving mold. Unlike the conventional one, the projecting portion P2 can be obtained by simply pouring concrete into a formwork for constructing a workpiece. Moreover, no complicated formwork is required and therefore no skill is required. In addition, after the construction of the parapet P, it is not necessary to install a new cementitious composition. Needless to say, labor can be reduced, and time and cost can be reduced at once.

In addition, the mold 1 is provided with a return portion formed by a convex portion 7 protruding upward in the middle in the front-rear direction on the upper surface of the horizontal upper wall 2, and the front side of the upper surface of the horizontal upper wall 2 is lower in the tip direction. Inclined surface 2
Since it is formed in A, it is possible to prevent rainwater and the like from infiltrating from the concrete joints well, eliminating the need for sealing work of the joints, and further reducing labor, time and cost.

Moreover, the method of constructing the projecting portion P2 of the parapet P using the form 1 is as follows.
Since this mold 1 is attached to the inner mold 9A of the mold 9 to be constructed, and this mold 1 can be used as a driving mold to be constructed integrally with the parapet P, the construction of the projecting portion P2 is almost the same as the parapet P. It can be obtained by an extremely simple work process, and can greatly reduce labor and further shorten the construction period.

(Example 2)
In the second embodiment, the side of a roof for pulling in equipment for pulling in a pipe provided through a roof slab as an example of a workpiece provided on the roof R (hereinafter simply referred to as a roof) is almost A case where the present invention is applied to form the end treatment portion of the waterproof layer by being recessed into the trapezoidal shape will be described below based on the description of FIGS.

FIG. 4 is a perspective view showing a case where the waterproof forming frame according to the present invention is formed in a rectangular shape (square in the example), and FIG. 5 is an enlarged end view, both denoted by reference numeral 101 in the drawing. The member shown is a formwork.

The mold 101 is formed in advance in a square shape in plan view so as to match the outer shape of the shed in plan view.
A lot of labor is required for the work of joining the long formwork 101 on the site in accordance with the outer shape of the shed P, making four short objects whose ends are obliquely cut, and connecting the ends at right angles. This is because time is required to eliminate the waste.

The vertical cross-sectional shape of the square mold 101 is the same as that of the mold 1 of the first embodiment.
That is, as shown also in FIG. 5, the horizontal upper wall 20, the hanging wall 30 that vertically hangs downward from the inner back thereof, and the inclined wall 40 that becomes lower from the lower end to the lower end of the hanging wall 30. When,
Separator through-holes 50 arranged at predetermined intervals on the hanging wall 30, and the horizontal upper wall 20
On the upper surface of the horizontal upper wall 20 that is recessed and formed on the lower surface of the front end portion of the front end, a portion corresponding to one third of the entire length from the front end is formed on the inclined surface 20A that is lower on the front end. In addition, an uneven trapezoidal convex portion 70 is integrally provided on the upper surface of the horizontal upper wall 20 so as to be integrally raised upward at a position extending from the rear end edge of the inclined surface 20A to the innermost portion. It has been.

However, as shown in FIG. 4, the shape different from that of the first embodiment is that it is first a square and that the four corner outer surfaces of the inclined wall 40 are chamfered 401. This chamfer is the shed P
Since the four corners of the outer surface P3 are chamfered in order to facilitate the application of the waterproof sheet, they are adapted to the shape.

The mold 101 is integrally formed using a cement-based composition, specifically, glass fiber reinforced concrete (GRC), for example.

4 to 8, the front end of the horizontal upper wall 20 and the lower end (front end) of the inclined wall 40 are dimensioned in advance so as to be positioned on the same vertical line. This is because both are on the same vertical virtual plane as the outer wall surface P3 of the roof P as shown in FIG.

In such a rectangular mold 101, an unequal trapezoidal recessed portion 80 is inevitably formed below the horizontal upper wall 20.

Next, a method of constructing an end treatment portion of a waterproof layer called a so-called projecting portion P2 on the outer wall surface P3 of the roof P using the rectangular mold 101 formed in this way is shown in FIGS. This will be described in detail based on the description.

First, as shown in FIGS. 6 and 7, a formwork 90 for constructing the roof P is built.
In order to form the opening O for drawing in the pipe, the inner mold 90A is first built in a rectangular shape in the insertion hole T of the assembly rooftop R. Next, a predetermined interval (wall thickness) is opened, and the inner mold 9
The outer formwork 90B is built around 0A. The outer formwork 90B and the inner formwork 90A are fixed by the separator 130 and the foam tie (registered trademark) 140, and the building space S of the roof P
Get.

The important point here is that when the outer formwork 90B is stood up, as shown in FIG. 6, face plates 102 are provided at the four corners on the inner side. The height dimension of the face wood 102 is set according to the height position where the formwork 101 is attached.

Next, the formwork 101 is incorporated into the construction space S. At this time, the formwork 101 is inserted into the construction space S, and the lower surfaces of the four corners of the horizontal upper wall 20 are placed on the upper end of the face plate 102. And
Temporarily secure the mounting posture.

Subsequently, the mold 101 is applied to the inner surface of the outer mold 90B on the concrete placing side, and the other end of the separator 100 is provided on the outer mold 90B side.
10 (see FIG. 6), and the separator 130 is fastened by a foam tie (registered trademark) 140.

In this manner, the chamfer 102 is provided, and chamfers 40 are formed at the four corners of the inclined wall 40 of the mold 101.
By applying No. 1, even one worker can easily attach the mold 101 to the outer mold 90B for obtaining the construction space S.

Next, concrete is poured into the roof building space S thus obtained, and the molds 90A and 90B on both the inner and outer sides are removed after solidification. After removing the formwork 90, as shown in FIG. 8, a roof P having a trapezoidal recessed portion 80 of unequal sides continuous on the outer periphery of the four sides is obtained.
Further, the separator 1 holding the mold 101 on the outer mold 90B for building a roof.
30 is removed from the separator through-hole 50 (see FIG. 5) of the hanging wall 30.

The obtained roof P is a formwork 101 which is formed in a rectangular shape and is chamfered on the outer surfaces of the four corners of the inclined wall.
However, the recessed portion 80 is opened to the outer periphery of the shed P, and the front ends of the horizontal upper wall 20 and the inclined wall 40 are on substantially the same virtual vertical plane as the outer surface of the shed P. It is embedded in the shed P integrally.

Subsequently, the outer surface is prepared by surface treatment F, for example, pressing a mortar iron. Moreover, the waterproof sheet 150 is started up from the roof R surface on the lower surface of the outer surface P3 of the roof. The waterproof sheet 150 is installed so as to cover the surface of the drooping wall 30 from the end treatment portion of the waterproof layer, that is, the surface of the inclined wall 40 of the mold 101, and the edge of the waterproof sheet 150 is the upper end of the drooping wall 30. Horizontal upper wall 2
Water-proofing is performed by the sealing material 160 at the corners with the lower surface of the inner back portion of 0, and waterproofing is performed (see FIG. 8).

  6-8, the member shown with the code | symbol 170 is the reinforcing bar distribute | arranged to the inside of the storehouse P. FIG.

The formwork 101 formed in the square shape configured in this way is a formwork 9 for constructing the roof P.
Since it is detachably attached to 0 and can be used as a drive-in formwork, it is completely different from the conventional one, and by simply pouring concrete C into the formwork for constructing a workpiece, P is obtained. Moreover, no complicated formwork is required and therefore no skill is required. At the same time, after the construction of the shed P, there is no need for a new work such as attaching a cement-based composition. Needless to say, labor can be reduced, and time and cost can be reduced at once. In addition, by providing the chamfer 102 and chamfering 401 at the four corners of the inclined wall 40 of the mold 101, the mold 101 can be easily attached to the outer mold 90B even by a single operator. It can be attached.

In each of the above-described embodiments, the separators 10 and 130 and the foam ties (registered trademark) 12 and 140 are used when the molds 1 and 101 are attached to the workpiece molds 9 and 90. Other members may be diverted. In the second embodiment, the mold 101 has a rectangular shape. However, the shape 101 is not necessarily limited to this shape, and can be diverted to any shape as long as the rectangle has a broad concept. Further, in each embodiment, the case where the end treatment portion of the waterproof layer is formed has been described. However, the place to be applied may be, for example, a foundation under the floor, and can be applied to any place without departing from the concept of the present invention. . Moreover, the convex parts 7 and 70 in the molds 1 and 101 are
Since it is sufficient if the water stop function by water return can be expected, it is not necessary to have an unequal side trapezoidal shape. For example, as shown in FIG. It may be.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external perspective view of Embodiment 1 of a waterproofing driving form according to the present invention. FIG. 2 is an explanatory diagram of a construction situation of a parapet using the waterproofing casting form shown in FIG. 1. FIG. 2 is a construction completion drawing of a parapet using the waterproof processing mold shown in FIG. 1. It is an external appearance perspective view of Example 2 of the drive-in formwork for waterproofing processing concerning the present invention. FIG. 5 is an enlarged end view of the waterproofing driving form shown in FIG. 4. FIG. 5 is an explanatory plan view of the construction state of the shed using the waterproofing driving form shown in FIG. 4. It is explanatory drawing of the construction condition of the shed using the waterproofing placement form shown in FIG. FIG. 5 is a completed view of a shed using the waterproofing driving form shown in FIG. 4. It is sectional drawing which shows the other Example of the driving-in type | mold mold for waterproofing treatments concerning this invention.

DESCRIPTION OF SYMBOLS 1,101 ... Formwork 2, 20 ... Horizontal upper wall 3, 30 ... Hanging wall 4, 40 ... Inclined wall 5, 50 ... Separator through-hole 6, 60 ... Water drain joint 7, 70 ... Convex part 8, 80 ... Concave part 9, 90 ... Formwork 10, 130 ... Separator 11, 110 ... Separator through hole 12, 140 ... Foam tie 15, 150 ... Waterproof sheet 16, 160 ... Sealing material C ... Concrete P ... Parapet (upper)
P1 ... Inner surface P2 ... Projection P3 ... Outer surface R ... Rooftop S ... Building space

Claims (2)

In the vertical cross-sectional shape, it is integrally provided with a horizontal upper wall, a hanging wall that hangs downward from the inner back part thereof, and an inclined wall that becomes lower from the lower end of the hanging wall to the lower end,
The upper surface of the horizontal upper wall is provided with a return portion formed by a convex portion protruding upward in the middle in the front-rear direction, and the front side of the upper surface of the horizontal upper wall is formed as an inclined surface that is lower on the tip side. While
At least the drooping wall is a waterproofing driving form having a hole formed so as to be inserted and removed through the separator ,
It is integrally molded from a cementitious composition, and is formed into a rectangular shape.
A water-proofing formwork characterized in that the outer surfaces of the four corners are chamfered . The waterproof processing mold according to claim 1, wherein the recessed portion is opened outward of the workpiece,
The front ends of the flat upper wall and the inclined wall are on the same virtual vertical plane as the outer surface of the workpiece
An end treatment structure for a waterproof layer, which is embedded in a workpiece integrally .

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