JPS6348852Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is based on the structure of the piping part of the concrete floor body,
More specifically, the present invention relates to a structure of a piping section of a concrete floor body that allows repair of various types of piping disposed on a concrete floor body easily and quickly.

In recent years, after piping for housing equipment related equipment in concrete apartment complexes has been installed on a concrete floor, the piping has been installed using floor mortar as a base material on the floor, or gypsum flooring, etc. A method of constructing a floor by burying it underground is increasingly being adopted.

The pipes include water pipes, gas pipes, hot water pipes for sanitary areas such as bathrooms, and central heating pipes, among which copper pipes are the most common. is commonly used.

However, due to the action of high-temperature water that flows intermittently through the copper tubes, the joints between the copper tubes repeatedly expand and contract, and over time, they may break due to metal fatigue.

FIG. 1 is a sectional view of the main part showing the structure of the piping part of a conventional concrete floor body. Various piping 2 are installed on the concrete floor body as a structure formed of cast-in-place reinforced concrete or precast reinforced concrete plates. After the installation, a blocking block 3 is placed from above only in the part where the pipe 2 is laid to conceal the pipe 2, and additional concrete 4 is placed in the non-pipe part on the floor body 1, Thereafter, the abutment block 3 is removed and the space of the piping 2 portion is filled with mortar 5.

After that, a gypsum-based so-called self-leveling material 6 is placed on the additional concrete 4 and mortar 5 to make the upper surface of the floor a horizontal surface.
On top of that, in the case of a Japanese-style room, a waterproof base material such as foamed polyethylene sheet 7 is laid down, and tatami mats 8 are placed thereon.

Further, Western-style rooms, sanitary spaces, etc. are finished by disposing an appropriate interior finishing material 9 such as carpet or Ptile on the self-leveling material 6.

However, if the piping 2 is damaged over time as described above, the interior finishing material 9 on the piping 2 is removed, and the self-leveling material 6 and embedded mortar 5 are destroyed with a chiseling tool or the like. In reality, the defective joints are exposed and repaired.

However, as is well known, chiseling the embedded mortar 5 is very difficult, and there are problems in that unnecessary parts may be destroyed or piping may be damaged by the chiseling tool.

Furthermore, the chiseling process takes a long time and has extremely poor workability.

Accordingly, there has been a demand in the industry for a floor structure for piping sections that allows the repair work to be carried out easily and quickly, and that can minimize damage caused by damage to defective areas.

The object of the present invention is to solve such conventional problems and provide a structure for a piping section of a concrete floor body that allows repair of damaged parts of the piping section with extremely good workability.

Therefore, in order to achieve the above object, in the present invention, in the structure of a piping section for various uses disposed on a concrete floor, the floor and
A space defined by partition walls erected on both sides of the piping section on the bed body is filled with inorganic granular material to bury the piping, and a finishing layer is formed on the granular material. Features.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. Note that the same elements as those in the above conventional example are indicated by the same reference numerals.

FIG. 2 is a longitudinal cross-sectional view of a main part of an embodiment of the present invention, and numeral 1 in the figure indicates a reinforced concrete floor body cast on-site or cast in advance in a factory.

On the concrete floor 1, pipes 2 for various equipment such as water pipes and gas pipes are laid in the longitudinal direction (direction perpendicular to the plane of the paper in FIG. 2).

On both sides of the pipe 2, crosspieces 10, 10 as partition walls are arranged, which are substantially parallel to the pipe 2 and have a height dimension at least larger than its maximum height. The space defined by 10 is filled with pearlite 11 as an inorganic granular material, and various pipes 2 are buried therein.

The pearlite 11 is covered with a sheet 12 made of vinyl film or the like placed between the pair of crosspieces 10, 10, and a holding material 13 made of metal lath or the like is laid on top of the sheet 12. A mortar layer 14 is formed as a finishing layer, and an interior finishing material 9 such as carpet or tile is attached to the horizontal upper surface of the mortar layer 14.

When forming the floor structure of the piping section having such a configuration, first, various types of piping 10 are arranged and fixed on the pre-formed concrete floor body 1, and then a pair of crosspieces 10 are placed on both sides of the concrete floor body 1. It is fixed to the body 1 with concrete nails 15 or the like.

Thereafter, fine granular perlite 11 is placed between the crosspieces 10, 10, and filled until the piping 2 is completely covered.

Then, in order to prevent the pearlite 11 from scattering, the upper surface is covered with a sheet 12, and further, in order to fix and connect the piping part and the non-piping parts on both sides, and to prevent cracks in the mortar,
A holding member 13 is laid extending outward by a predetermined dimension from the crosspiece 10, and both ends are fixed to the concrete floor body 1.

Then, mortar 14 is placed on the entire surface of the floor 1 to form an even horizontal surface, and the mortar 14
After curing, an interior finishing material 9 is placed on the upper surface to complete the work.

Note that as the embedded mortar 14, it is preferable to use ultra-light mortar containing pearlite (air-dry specific gravity 0.7 to 1.8) rather than ordinary mortar from the viewpoint of reducing weight, improving heat insulation performance, and preventing floor impact noise. .

In this embodiment having such a configuration, especially when damage occurs to the joints of the copper piping 2 over time, the interior finishing material 9 at the relevant location is removed and the previously recognized parts of the piping 2 are replaced. By cutting off the four sides of the mortar layer 14 around the damaged area (portion A indicated by diagonal lines in FIG. 2) with a concrete cutter (not shown), only the mortar layer 14 at the portion A in the figure can be removed.

Therefore, the pearlite 11 in the area to be repaired is exposed without destroying the mortar layer 14 in the non-piping area. Therefore, the holding material 13 and sheet 12 of the relevant part are removed, the perlite 11 is removed only in that part to expose the piping 2, and the joint to be repaired is re-welded, or a prescribed work such as pipe replacement work is carried out. When the work is completed, the repaired area is buried again with perlite 11 and sheet 1
2 and the holding material 13, return the mortar layer of the A part to its original position and repair the cut joint, or newly cover only the A part with the mortar 14.
After casting and curing, the interior finishing material 9 may be placed again.

That is, in this embodiment, since the piping 2 is buried with pearlite 11, which is an inorganic fine granular material, by cutting and removing the mortar layer 14 on top of it, the piping 2 at the repair location can be easily exposed. In addition, since pearlite 11 exists in the lower layer, chiseling work is not required to remove the mortar layer 14 as in the conventional example, and the mortar layer can be removed to the minimum extent without damaging the piping 2. Only 14 removals are required.

In addition, in terms of workability, repair work can be performed extremely quickly, making it possible to save labor and reduce costs in repair work.

FIG. 3 is a vertical sectional view of the essential parts showing a second embodiment of the present invention, in which the same elements as those in the first embodiment are given the same reference numerals and their explanations are omitted.

In this embodiment, a pair of blocks 1 are provided as partitions on both sides of a pipe 2 on a concrete floor 1.
6, 16 are arranged, and the block 16 is engaged or fixed to the concrete floor body 1 by a suitable means such as a wedge material 17.

Therefore, additional concrete 4 was placed in the non-piping area, and perlite 11 was poured in the piping area.
After burying pipe 2 with block 1,
It is removably covered with a pre-cast mortar board or concrete board 18 mounted between 6 and 16, self-leveling material 6 is poured over the entire floor to make the upper surface a horizontal surface, and interior finishing material 9 is arranged. It is said that

In this embodiment, when repairing a damaged part of the piping 2, the interior finishing material 9 is removed, the self-leveling material 6 at the relevant part is destroyed by hitting it with a hammer, etc., and the precast plate 18 is exposed. The precast board 18 is removed only at the required locations, the perlite 11 is removed to expose the piping 2, and the specified repairs are performed.After the work is completed, the perlite 11 is filled again, and the precast board 18 is placed on the repaired area. Only then, place the self-leveling material 6 again.
What is necessary is to rearrange the interior finishing material 9.

In this embodiment as well, repair work is possible with much better workability than in the conventional example, and since the self-leveling material 6 is a thin layer, removal work is easy, and the precast plate 18 can be simply removed. Therefore, the workability is even better than that of the first embodiment.

Note that it is desirable that a plurality of precast plates 18 of a predetermined size be laid so that only the repaired area can be removed.

Further, in each of the above embodiments, an example was shown in which the piping 2 is buried with perlite 11, but the present invention is not limited to this, and for example, other appropriate inorganic granules such as artificial lightweight aggregate or dry sand may be buried. Can be used.

Furthermore, the structure of the finishing layer on the piping part buried with inorganic granules such as pearlite is not limited to the above example, and for example, a precast plate of a predetermined thickness is placed only on the granules of the piping part. For other non-piping parts, if you pour self-leveling material to match the thickness of the precast board on top of the additional concrete, you can remove the interior finishing material and remove the precast board at the time of repair. All you need to do is just do it, which makes the work after repair easier.

Furthermore, the material and shape of the partition wall 10 may be arbitrary, as long as the inorganic granules can be independently filled only in the piping section, and various other materials may be used without departing from the gist of the present invention. Needless to say, it can be modified and changed.

The present invention is constructed as described above, and only the piping section on the concrete floor is buried with inorganic granules, and a finishing layer is formed on top of it, making repair work extremely simple and easy. It can be done quickly, and has various useful effects such as being able to expose only the necessary parts without damaging the piping due to chiseling work. not limited,
Applicable to any structure with a concrete floor.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view of the main part showing the structure of the piping section of a conventional concrete floor body, and Figs. 2 and 3 are longitudinal sectional views of the main part showing the first and second embodiments of the present invention, respectively. It is. 1... Concrete floor body, 2... Piping, 4...
Additional pouring concrete, 9...Interior finishing material, 1
0, 16... Partition wall, 11... Pearlite (inorganic granules), 12... Sheet, 13... Pressing material, 1
4...mortar, 18...precast board.

Claims (1)

[Claims for Utility Model Registration] (1) In the structure of piping sections for various purposes installed on a concrete floor, the piping section is erected on both sides of the said floor and on the floor. 1. A structure of a piping section of a concrete floor body, characterized in that a space defined by a partition wall is filled with inorganic granular material and piping is buried therein, and a finishing layer is formed on the granular material. (2) A structure of a piping section of a concrete floor body, wherein the granular material is pearlite. (3) A structure of a piping section of a concrete floor body, wherein the granular material is an artificial lightweight aggregate. (4) A structure of a piping section of a concrete floor body, wherein the granular material is dry sand.