JP2014152538A - Slab curing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slab curing method capable of reducing construction costs by shortening a construction period.SOLUTION: A slab curing method 1 includes: a step S1 of placing concrete for a slab 10; a step S2 of providing a reference line 20 for skeleton work on a surface of the slab 10; a step S3 of setting an area, which includes a column reinforcement 12 elongated upward from the surface of the slab 10, as a predetermined area A and providing an interception member 13 by surrounding an area, except the predetermined area A, of the surface of the slab 10; and a step S4 of submerging the slab 10 by infilling water into the area surrounded by the interception member 13.

Description

  The present invention relates to a slab curing method. In detail, it is related with the curing method of the slab after concrete placement.

  Conventionally, the surface of a slab after placing concrete is subjected to watering curing (see Patent Documents 1 and 2). Sprinkling curing is to sprinkle the slab after placing concrete and prevent the cast concrete surface from drying.

  For example, in patent document 1, watering curing is performed unattended using the curing hose which provided the timer. In Patent Document 2, water stop treatment is performed around the slab, and the concrete of the slab is hydrostatically cured with a water pipe.

JP-A-11-324327 JP 2009-101568 A

  However, the watering curing as described above has a problem that the construction on the slab cannot be carried out while the slab is flooded, the construction period is prolonged, and the construction cost is increased.

  An object of this invention is to provide the slab curing method which can shorten a construction period and can reduce construction expense.

  The slab curing method according to claim 1 (for example, slab curing method 1 described later) includes a step of placing concrete of a slab (for example, slab 10 described later) (for example, step S1 described later), and the surface of the slab. A step (for example, step S2 to be described later) for providing a base line for frame construction (for example, step S2 to be described later) and a blocking member (for example, a blocking member 13 to be described later) along the outer edge of the slab. A step of providing (for example, step S3 to be described later) and a step of flooding the slab with water in an area surrounded by the damming member (for example, step S4 to be described later). To do.

  The slab curing method according to claim 2 (for example, slab curing method 1 described later) includes a step of placing concrete of a slab (for example, slab 10 described later) (for example, step S1 described later), and the surface of the slab. A region including at least one of rising reinforcing bars (for example, below-mentioned column reinforcing bars 12) and rising rods extending from the upper side is defined as a predetermined region (for example, predetermined region A described later), and the predetermined region is excluded from the slab surface. A step (for example, step S3 to be described later) for providing a damming member (for example, a damming member 13 to be described later) surrounding the region, and water is applied to the region surrounded by the damming member to flood the slab. And a step (for example, step S4 to be described later).

  The slab curing method according to claim 3 further includes a step (for example, step S5 described later) of performing construction in the predetermined area in a state where the slab is flooded.

  The construction within the specified area includes the work to arrange the rising bars such as column bars and wall bars, the construction of the formwork on the rising bars, the construction of the reinforcing bars extending from the rising frame, the formwork and For example, construction of precast members.

According to the present invention, in view of the work process after slab curing, a base line for frame construction is provided on the surface of the slab, and then a dam member is provided along the outer edge of the slab, and is surrounded by the dam member. Fill the area with water to flood the slab. Alternatively, a dam member is provided so as to surround a region excluding a region including at least one of the rising reinforcing bars and the rising frame, and water is filled in the region surrounded by the dam member to flood the slab.
Therefore, since the construction of the rising rebar and the rising frame can be continued while curing the concrete of the slab, the construction period can be shortened and the construction cost can be reduced.

  In the slab curing method according to claim 4, in the step of performing the construction in the predetermined area, at least one of the rising reinforcing bar extending upward from the slab surface and the rising reinforcing bar extending upward from the rising frame is a column. A reinforcing bar material (for example, a column reinforcement 14 described later) is joined to the column reinforcement using a mechanical coupling (for example, a mechanical coupling 16 described below).

  According to the present invention, since the reinforcing bar material is joined to the reinforcing bars that extend upward from the rising reinforcing bars and the rising frame using the mechanical joint, no spark is generated unlike the press-fit joints when the reinforcing bars are joined. Therefore, it is possible to prevent the slab curing from being insufficiently cured due to a spark falling on the water.

  According to the present invention, a reference line for frame construction is provided on the surface of the slab in anticipation of the work process after slab curing, and then a dam member is provided around the outer edge of the slab, and is surrounded by the dam member. Fill the area with water to flood the slab. Alternatively, a dam member is provided so as to surround a region excluding a region including at least one of the rising reinforcing bars and the rising frame, and water is filled in the region surrounded by the dam member to flood the slab. Therefore, since the construction of the rising rebar and the rising frame can be continued while curing the concrete of the slab, the construction period can be shortened and the construction cost can be reduced.

It is a flowchart of the slab curing method which concerns on one Embodiment of this invention. It is a perspective view (the 1) for demonstrating the slab curing method which concerns on the said embodiment. It is a perspective view (the 2) for demonstrating the slab curing method which concerns on the said embodiment. It is a perspective view (the 3) for demonstrating the slab curing method which concerns on the said embodiment. It is a perspective view (the 4) for demonstrating the slab curing method which concerns on the said embodiment.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a flowchart of a slab curing method 1 according to an embodiment of the present invention.

  In step S1, concrete of the slab 10 is placed as shown in FIG. In this state, from the surface of the slab 10, the column reinforcing bars 12 as the rising reinforcing bars of the columns 11 protrude and extend upward. Although not shown, a temporary scaffold for construction is installed around the slab 10.

  In step S <b> 2, as shown in FIG. 3, a base line 20 for the frame construction is set on the surface of the slab 10. Specifically, a master ink 21 as a reference line is hit on the surface of the slab, and a small ink 22 which is a reference line for building a formwork is hit based on the master ink 21.

  In step S3, as shown in FIG. 3, a region surrounding the column reinforcement 12 extending upward from the surface of the slab 10 is defined as a predetermined region A. And the dam member 13 is installed in the area | region except the predetermined area | region A among the surfaces of the slab 10, and along the outer edge part of the slab 10. As shown in FIG. Specifically, the damming member 13 is a plate member fixed to the surface of the slab 10 with a nail, and a triangular seal (not shown) is placed between the plate member and the slab 10.

  In step S4, as shown in FIG. 4, the slab 10 is submerged by spreading water in the region surrounded by the blocking member 13.

In step S5, as shown in FIG. 5, the slab 10 is flooded, while the construction in the predetermined area A, that is, the area where water is not applied is continued.
Specifically, a column reinforcement 14 as a reinforcing bar material is preliminarily built, and the built-up column reinforcement 14 is lifted by a crane 15, and a mechanical joint 16 is used for the column reinforcement 12 protruding from the surface of the slab 10. And join. Next, although not shown in the figure, after the column bars 12 are joined, the column frame of each column 11 starts to be built.

  In addition, when there is a rising frame in the predetermined region A, a reinforcing bar material may be joined to the column bar extending upward from the rising frame using a mechanical joint, and further, a formwork or a precast is attached to the rising frame. You may perform construction to build a member.

  In step S6, the dam member 13 is removed after the concrete curing period of the slab 10 ends.

According to this embodiment, there are the following effects.
(1) With reference to the work process after slab curing, a base line 20 of the frame construction is provided on the surface of the slab 10, and then a dam member 13 is provided on the surface of the slab 10, and is surrounded by the dam member 13. The area was filled with water to flood the slab 10. Therefore, since the concrete construction of the column 12 can be continued while curing the concrete of the slab 10, the construction period can be shortened and the construction cost can be reduced.

  (2) Since the column rebar 14 is joined to the column rebar 12 using the mechanical joint 16, no spark is generated when the column rebar 14 is joined unlike the press-contact joint. Therefore, it is possible to prevent the slab curing from being insufficiently cured due to a spark falling on the water.

It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.
For example, in this embodiment, the frame construction reference line 20 is set on the surface of the slab 10 in step S2, but this is not a limitation, and step S2 may be omitted. Even if it does in this way, there exists an effect similar to the above-mentioned (1).

A ... Predetermined area 1 ... Slab curing method 10 ... Slab 11 ... Pillar 12 ... Column reinforcement (rising rebar)
13 ... Damming member 14 ... Column reinforcement (rebar material)
15 ... Crane 16 ... Mechanical joint 20 ... Base line 21 ... Ink ink 22 ... Small ink

Claims (4)

A process of placing slab concrete;
A process of providing a base line for frame construction on the surface of the slab;
Providing a damming member along the outer edge of the slab surface;
Filling the slab with water in an area surrounded by the damming member;
A slab curing method characterized by comprising: A process of placing slab concrete;
A step including providing a region including at least one of the rising reinforcing bar and the rising frame extending upward from the slab surface as a predetermined region, and providing a damming member surrounding the region excluding the predetermined region of the slab surface;
Filling the slab with water in an area surrounded by the damming member;
A slab curing method characterized by comprising:   The slab curing method according to claim 2, further comprising a step of performing construction in the predetermined area in a state where the slab is flooded. In the process of performing construction within the predetermined area,
At least one of the rising reinforcing bars extending upward from the slab surface and the rising reinforcing bars extending upward from the rising frame is a column reinforcing bar,
The slab curing method according to claim 3, wherein a reinforcing bar material is joined to the column reinforcement using a mechanical joint.

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