JP3681271B2 - Concrete slab building block and concrete slab building method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is for building a concrete floor slab that is used to support a side edge of a concrete floor slab when a concrete floor slab is constructed on a bank part made of a lightweight foamed resin block such as a polystyrene foam block. The present invention relates to a method for constructing a concrete slab using a block and a block for constructing the concrete slab.
[0002]
[Prior art]
Recently, lightweight foamed resin blocks such as expanded polystyrene have been used as embankment materials in various civil engineering works. This foamed resin block is formed in a rectangular parallelepiped shape, and is stacked as a banking material and a backfilling material to form a banking part and a backfilling part.
[0003]
When the embankment part is formed by the stacked foamed resin blocks, a concrete floor slab is constructed on the foamed resin block in order to disperse the loading load evenly and to integrate the foamed resin blocks. Further, if necessary, when the foamed resin blocks are stacked to a predetermined height, for the same purpose, a concrete floor slab is provided on the stacked foam resin blocks, and further on the concrete floor slab, Foamed resin blocks are stacked.
[0004]
When building concrete floor slabs, if foamed resin blocks are stacked at a predetermined height and the top surface is horizontal, stacking is done so that the concrete placed on the stacked foamed resin blocks does not flow down. A mold is installed along the side edge of the foamed resin block. Then, after reinforcing bars and the like are arranged along the upper surface of the stacked foamed resin blocks, concrete is placed on the foamed resin blocks. When the placed concrete hardens, the installed formwork is removed and a concrete floor slab is constructed.
[0005]
[Problems to be solved by the invention]
Thus, when constructing a concrete floor slab on the stacked foam resin blocks, the concrete must be placed after the formwork is installed along the side edges of the stacked foam resin blocks. In addition, when the concrete is hardened, it is necessary to remove the installed formwork, which causes a problem that work efficiency is poor.
[0006]
The present invention solves such a problem, and an object of the present invention is to provide a concrete floor slab building block capable of easily constructing a concrete floor slab on the upper surface of a banking portion made of a banking material, and its concrete floor. The object is to provide a method for constructing a concrete floor slab using a block construction block.
[0007]
[Means for Solving the Problems]
The block for building a concrete floor slab according to the present invention according to claim 1 is configured to support a side edge portion of a concrete floor slab to be constructed when the concrete floor slab is constructed on the upper surface of the embankment portion of the embedding material. A concrete floor slab building block arranged on the upper side, and a dam part raised upward is provided on one side part of the main body part configured in a rectangular parallelepiped shape, and the main body part and the dam part are foamed resin. It is comprised integrally by.
[0008]
In the concrete floor slab building block of the present invention according to claim 2, the upper surface of the dam portion is a flat surface, and the upper flat surface is continuous with the flat upper surface of the main body portion via a tapered surface. doing.
[0009]
According to a third aspect of the present invention, there is provided a method for constructing a concrete floor slab according to the first aspect of the present invention, wherein the plurality of concrete floor slab construction blocks according to the first aspect are arranged along the side edges of the embankment portion of the embankment material. And a step of continuously placing the portion on the outside, and a step of placing concrete on the embankment portion including the main body portion of each concrete floor slab building block.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0011]
FIG. 1 is a perspective view showing an example of an embodiment of a concrete floor slab building block according to the present invention. For example, as shown in FIG. 2, the concrete floor slab building block is formed by embedding a foamed resin block 20 for embankment formed in a rectangular parallelepiped as a embankment material on a cut portion of a mountain slope. When the concrete floor slab 30 is constructed on the foamed resin block 20 for embankment that has been stacked, the side edges of the concrete floor slab 30 are supported.
[0012]
The concrete floor slab building block 10 has a main body portion 11 configured in a rectangular parallelepiped shape and a dam portion 12 provided on one side of the main body portion 11, and the main body portion 11 and the dam portion 12. However, it is integrally formed of a lightweight foamed resin.
[0013]
The main body 11 is configured as a rectangular parallelepiped in which the upper surface 11a and the lower surface 11b are respectively horizontal flat surfaces. A dam portion 12 that rises upward along the side surface 11c is integrally provided on a side portion of the main body portion 11 along the side surface 11c. The upper surface 12a of the dam portion 12 is a horizontal flat surface over the entire surface, and a tapered surface 12b that is inclined so that the upper surface 12a is sequentially positioned downward on the upper surface 11a of the main body portion 11 as the distance from the side surface 11c increases. Is continuous through.
[0014]
The concrete floor slab building block 10 is formed in a predetermined shape in which a dam portion 12 is provided on one side portion of the main body portion 11 by, for example, in-mold foam molding of polystyrene. The in-mold foam molding method is a method in which resin particles containing a foaming agent are pre-foamed, and the obtained pre-foamed particles are filled in a mold and foam-molded in the mold. Moreover, not only a polystyrene foam resin but a polypropylene foam resin, a styrene modified polyolefin foam resin, etc. can also be used. Furthermore, the present invention is not limited to the in-mold foaming method, and cutting may be performed after foaming into a rectangular parallelepiped.
[0015]
The concrete floor slab building block 10 has, for example, a height of 400 mm from the lower surface 11 b to the upper surface 11 a of the main body 11 and a height of 100 mm from the upper surface 11 a of the main body 11 to the upper surface 12 a of the dam portion 12. The height from the lower surface 11b of the main body 11 to the upper surface 12a of the dam portion 12 is 500 mm.
[0016]
The concrete floor slab building block 10 having such a configuration is used to support the side edges of the concrete floor slab 30 when the concrete floor slab 30 is constructed on the embankment material. When the concrete floor slab 30 is constructed, as shown in FIG. 2, the foamed resin blocks 20 for embankment configured in a rectangular parallelepiped as a embankment material are sequentially spread on the cut portion, Stacked in multiple stages to form a level horizontal plane. Thereafter, the concrete floor slab building block 10 of the present invention is arranged on the side edge of the embankment portion formed by the stacked embedding foam resin blocks 20 so as to be continuous along the side edge. The In this case, the concrete floor slab building blocks 10 that are continuously arranged are continuous so that the side surface 11c of the main body 11 is vertical with the respective dam portions 12 being outside.
[0017]
In this way, when the concrete floor slab building block 10 is continuously disposed along the side edge of the stacked foam resin block 20, the top surface of the already-filled foam resin block 20 is stacked. The embedding foam resin block 21 configured in a rectangular parallelepiped is horizontally spread so as to cover a portion excluding the concrete floor slab building block 10. The embedding foam resin block 21 spread in this case is configured in a rectangular parallelepiped having a height equal to the height from the lower surface 11b to the upper surface 11a of the main body portion 11 of the concrete floor slab construction block 10, and accordingly The upper surface of the foamed resin block 21 for embankment forms a horizontal plane having a height equal to the upper surface 11 a of the main body 11 in the concrete floor slab building block 10.
[0018]
In addition, when one side edge part of the concrete floor slab 30 to be constructed is continuous with a slope of a mountain or the like, the concrete floor slab building block 10 is continuously provided only along the side edge part. However, if both side edges of the concrete floor slab 30 are not in contact with the slope of the mountain, the concrete floor slab building blocks 10 are continuously arranged along both side edges. The
[0019]
In this way, the concrete floor slab building block 10 is continuously arranged along at least one side edge portion on the upper surface of the embankment portion by the embankment retaining foam resin block 20, and the embedding foam resin on the upper surface of the embankment portion. When the blocks 21 are spread horizontally, the reinforcing bars 31 are horizontally arranged along the top surface of the spread foam resin block 21 and the top surface 11a of the main body 11 in the concrete floor slab building block 10.
[0020]
At this time, when the ground covering concrete 32 is provided along the side edge portion of the concrete floor slab 30 to be constructed, the main body portion 11 of the concrete floor slab building retaining block 10 is embedded in the ground covering concrete 32. The reinforcing bar 33 is vertically arranged so as to protrude above the upper surface 12 a of the dam portion 12.
[0021]
When the reinforcing bar 31 is arranged, concrete is placed on the upper surface of the foamed resin block 21 for embankment and on the upper surface 11 a of the main body 11 in the concrete floor slab building block 10. At this time, the concrete placed on the top surface of the foamed resin block 21 for embankment and the top surface 11 a of the main body 11 in the concrete floor slab building block 10 is dammed by the dam portion 12 of the concrete floor slab building block 10. Since it is stopped, there is no possibility that the concrete to be poured flows down to the side beyond the dam portion 12.
[0022]
Moreover, since the concrete to be poured flows along the tapered surface 12b of the dam portion 12 in the block 10 for building concrete floor slab, the stress applied from the concrete to be placed on the dam portion 12 is tapered surface 12b. Is distributed along. Therefore, there is no possibility that a large stress is applied to the dam portion 12 due to the placed concrete, and the dam portion 12 is not likely to be damaged by the placed concrete.
[0023]
Then, the concrete slab 30 is constructed by hardening the placed concrete. And the ground-covering concrete 32 is constructed | assembled along the side edge part of the constructed concrete floor slab 30 as needed.
[0024]
The concrete floor slab building block 10 of the present invention is not limited to the case where a concrete floor slab is constructed on the upper surface (top edge) of the stacked embedding foam resin block 20, but the embedding foam resin block 20 is installed. It can also be applied when building a concrete slab formed in the middle part when the number of steps is large.
[0025]
【The invention's effect】
In the concrete floor slab building block of the present invention, the concrete placed on the main body part for constructing the concrete floor slab is constructed on the side of the embankment part by the dam part provided on the main body part. There is no risk of running down. This eliminates the need for attaching / detaching the formwork to prevent the poured concrete from flowing down, thereby significantly simplifying the construction work of the concrete slab.
[0026]
Since the concrete floor slab construction method of the present invention uses such a concrete floor slab construction block, the concrete floor slab can be constructed with high work efficiency.
[Brief description of the drawings]
FIG. 1 is a perspective view of a concrete floor slab building block of the present invention.
FIG. 2 is a cross-sectional view of a concrete slab constructed using the concrete slab building block.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Concrete floor slab construction block 11 Main-body part 11a Upper surface 11b Lower surface 11c Side surface 12 Dam part 12a Upper surface 12b Tapered surface 20 Foamed resin block 21 for embankment Foamed resin block 30 for embankment Concrete floor slab 31 Reinforcement 32 Overlay concrete 33 Reinforcement

Claims (3)

When building a concrete slab on the upper surface of the embankment part by the embedding material, a concrete slab building block arranged on the embedding material so as to support the side edge of the constructed concrete slab,
A concrete floor characterized in that a dam portion raised upward is provided on one side portion of a main body portion configured in a rectangular parallelepiped shape, and the main body portion and the dam portion are integrally formed of foamed resin. Version building block. 2. The concrete floor slab building block according to claim 1, wherein an upper surface of the dam portion is a flat surface, and an upper flat surface thereof is continuous with a flat upper surface of the main body portion via a tapered surface. The step of continuously arranging each dam portion as the outside so that the plurality of blocks for building a concrete slab according to claim 1 are along the side edge portion of the embankment portion of the embankment material;
Placing concrete on the embankment including the main body of each concrete floor slab building block; and
A method for constructing a concrete floor slab characterized by comprising:

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