JP2552679Y2 - Structural wall - Google Patents

Description

[Detailed description of the invention] [Industrial applications]

The present invention relates to a structural wall formed by casting concrete, and more particularly, to a structural wall in which one side of a formwork is left without being removed after concrete is cast.

[Prior art]

Conventionally, concrete was cast using a formwork material 1A in which the concrete casting surface 12A was formed flat, and after the concrete was solidified, the formwork material 1A was removed to form a structural wall. Since it is finished flat, it is suitable for use as it is without surface finishing or for lining a heat insulating material or interior material. However, since the concrete has a property of allowing water to permeate though it is slight, groundwater 4 and the like seeps into the outer wall 2 in an underground structure or the like. For this reason, after embedding a water-permeable film-shaped polymer resin sheet in the outer wall 2 or removing the form material 1A, the inner wall 3 such as a concrete block is placed inside the outer wall 2.
Are separately constructed, and measures such as providing drainage grooves 5 between the outer wall 2 and the inner wall 3 are taken. However, all of these measures increase the construction cost due to the complicated structure, and also have a double wall structure. In this case, the effective space is reduced. Further, since the conventional form material 1A is made of wood and needs to be removed after the concrete has solidified, there is also a problem that the lining work of the heat insulating material and the interior material cannot be performed until the concrete solidifies.

[Problems to be solved by the invention]

Therefore, there has been proposed a structural wall that does not have an adverse effect even when the concrete is poured into the place where the groundwater flows out, and further allows the finishing work to be promptly performed without removing the formwork after the concrete is poured. Was desired.

[Means for Solving the Problems]

The present invention has been made in order to solve the above-mentioned problems of the prior art, and has a structural wall composed of concrete and a formwork which is used for placing the concrete and which is left as a discarded mold on one side of the wall. Wherein the formwork is formed from a water-permeable member provided on a surface facing the concrete, and a non-water-permeable synthetic resin base having a water guide groove provided in contact with the water-permeable member. It provides structural walls.

[Action]

In the structural wall according to the present invention having the above structure, the water-permeable member prevents concrete from entering the water-groove provided on the concrete casting surface of the formwork, so that the water-groove is not filled. In addition, since the formwork made of a synthetic resin that does not rot the base is used as an interior material or as a base material of the interior material after the concrete is solidified, the formwork is left without removing the formwork, so that the construction time is reduced. Not only can be shortened, but also groundwater or the like that seeps through the concrete passes through the water-permeable member of the formwork, reaches the water guide groove, is guided by the water guide groove, and is drained. Therefore, moisture does not reach the inner surface of the structural wall. The structural wall according to the present invention has a heat insulating property due to its material, so that the interior material and the like can be directly lined.

【Example】

Next, the present invention will be described in detail based on one embodiment shown in the drawings. The structural wall W according to the present invention includes, for example, an outer wall 2 made of concrete and a formwork 1 which is used for placing the outer wall 2 and which is left as a mold on one side of the wall surface. Water-permeable member provided on a surface where frame 1 faces outer wall 2
14 and a water guide groove 13 provided in contact with the water-permeable member 14.
And a base 11 made of a synthetic resin that does not have water permeability. Since the base 11 having no water permeability is a structural member for regulating the solidified surface of concrete, it must have sufficient strength. In addition, in order to reduce the weight in consideration of the ease of handling during construction, it is preferable to use a synthetic resin foamed with an appropriate porosity. When the synthetic resin is foamed and used as described above, the advantage that the heat insulating property and the sound insulating property are improved is added. A synthetic resin that can be used for such a purpose is, for example, a styrene resin. When high strength is required, it may be used without surface treatment or foaming. The water guide grooves 13 formed on the concrete casting surface 12 of the base 11 are composed of vertical grooves and horizontal grooves inclined toward the vertical grooves, and are disposed at appropriate intervals to effectively collect water. Although it is possible, since the water guide groove 13 is formed by arranging a ridge on a mold such as when foaming the base 11, even if the water guide groove 13 is formed, the manufacturing cost is reduced. There is no big difference. It should be noted that the size, cross-sectional shape, arrangement interval, and the like of the water guide grooves 13 are not particularly limited because they may be determined as appropriate depending on the amount of water that seeps out, but if one is provided at intervals of 50 to 100 cm, In normal cases, it is drained without any problem. The water-permeable member 14 prevents the water-guiding groove 13 from being filled with the flowable concrete at the time of placing the concrete. After the concrete solidifies to form the outer wall 2, the water-permeable member 14 penetrates through the outer wall 2 and stains. It has a function of transmitting the outflowing groundwater 4 and the like to the water guide groove 13 side. Glass wool mesh has such a function, for example. The water-permeable member 14 may be provided on the entire surface of the concrete casting surface 12 of the base body 11 and may be sealed to allow the water guide groove 13 to pass therethrough, or may be partially adhered to the concrete casting surface 12. Then, a structure may be adopted in which the water guide groove 13 is sealed so that water can pass therethrough. By the way, besides the styrene resin, a synthetic polymer resin such as a vinyl chloride resin, a polyethylene resin, a polyurethane resin, a phenol resin, an epoxy resin, and a urea resin can also be used for the base 11, and the water-permeable member 14 can also be used. It is not limited to the glass wool mesh.
Further, the base 11 may have a structure in which a concave portion 15 and a convex portion 16 are provided on an end surface so that the base 11 can be connected vertically and horizontally. The outer wall 2 which forms the structural wall W of the present invention together with the mold 1 is formed on both sides by the mold 1 described above and a conventionally known mold (not shown), for example, a mold having the same configuration as the mold material 1A. It is cast with regulating the surface.

[Effect of the invention]

As described above, the present invention is a structural wall composed of concrete and a formwork which is used for casting the concrete and which is left as a mold on one side of the wall, and the formwork faces the concrete. A water-permeable member provided on the surface,
Since it is formed from a non-water-permeable synthetic resin substrate having a water-guiding groove provided in contact with the water-permeable member, without waiting for concrete to completely solidify, the formwork as an interior material, or It can be used as a base material for an interior material, and various processes can be performed thereon, thereby shortening the construction time. Then, groundwater or the like that seeps through the concrete portion of the structural wall passes through the water-permeable member of the formwork, reaches the water guide groove, and is guided by the water guide groove to be drained. No moisture. In this way, the use of the structural wall according to the present invention makes it possible to improve the construction efficiency when the concrete wall is formed by pouring concrete into an underground where water is likely to seep out. Since there is no need to provide an inner wall through a heat insulator or the like, the space can be effectively used at the same time. In addition, when constructing not only the outer peripheral wall of the underground structure but also the outer wall on the ground which is directly hit by rain, or the wall around the bath, etc., the construction wall of the present invention can be efficiently used.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a part of a formwork constituting a structural wall according to the present invention by rolling up, FIG. 2 is an explanatory view showing an application example of one embodiment, and FIG. 3 is an explanation of a conventional example. FIG. W: structural wall, 1 ... mold, 11 ... base, 12 ... concrete casting surface, 13 ... water guide groove, 14 ... water-permeable member, 15 ...
... recess, 16 ... projection, 1A ... form material, 12A ... concrete casting surface, 2 ... outer wall, 3 ... inner wall, 4 ... groundwater.

Claims (1)

(57) [Scope of request for utility model registration] 1. A structural wall comprising concrete and a formwork which is used for casting the concrete and which is left as a mold on one side of the wall, wherein the formwork is provided on a surface facing the concrete. A water-permeable member, and a non-water-permeable synthetic resin substrate having a water guide groove provided in contact with the water-permeable member.