JPH0211701B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a concrete block with an embedded mounting member suitable for mounting on a vertical or inclined wall surface of a building or an underground passage, and a method for manufacturing the same.

[Prior art]

In recent years, concrete blocks such as terrazzo tiles, whose surface layer is formed with mortar made of beautiful stone chips such as marble chips, have been widely used for the floors or walls of buildings or underground passages. Conventionally, when installing such concrete blocks on a vertical or sloping wall,
As shown in FIGS. 1 and 2, which show part of the side surface and part of the plane of the concrete block, near the boundary between the surface 2 and the bottom layer 3 of the concrete block 1,
A hole 4 is made with a drill or the like, a rod-shaped mounting member 5 is inserted into the hole 4, and the periphery is hardened with an adhesive 6 such as concrete bond to fix the mounting member 5 to the concrete block 1. The concrete block 1 is mounted on the wall surface by tying the mounting member 5 to a fixing member such as a wall reinforcing bar for fixing the concrete block with a metal wire or the like.

[Problems with conventional technology]

As mentioned above, in the past, a hole 4 was drilled in the side of the concrete block using a drill or the like, and the mounting member 5 was hardened and fixed with adhesive 6, which caused the problem that the work was time-consuming. It was hot. Further, if the mounting member 5 is fixed in advance at the factory, the mounting member 5 protrudes from the side surface, which causes an inconvenience that the mounting member 5 gets in the way when the concrete block 1 is transported.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a concrete block with an embedded mounting member that can be easily mounted on a vertical wall surface or an inclined surface.

[Structure of the invention]

In order to achieve the above object, the present invention provides a rod-shaped mounting member having a coil portion wound in a coil shape on at least one end thereof, which is buried so that the coil portion is located at the end on the block side, and is mounted after the block is cured. A concrete block with a mounting member embedded in which the end of the coil of the member is pulled out to the outside, and mortar that becomes a surface layer of the block is placed in the block formwork, and a coil is wound in a coil shape on at least one end of the mortar. A rod-shaped mounting member having a coil end is arranged so that its coil end is in contact with the inner surface of the block form, mortar that will become the bottom layer of the block is placed on top of the mounting member, and then pressure-formed using a press. This is a method for manufacturing a mounting member embedded in a concrete block.

[Embodiments of the invention]

An embodiment of the present invention will be described below based on the drawings.

FIG. 3 is a partial side view of a concrete block in which a mounting member is embedded according to an embodiment of the present invention, and FIG. 4 is a plan view thereof. As shown in the figure, a plurality of mounting members 14 are buried near the boundary between the surface layer mortar 12 and the bottom layer mortar 13 of the concrete block 11. The mounting member 14 is provided with a bent portion 14a bent in a dogleg shape at one end, and a coiled portion 14b wound in a coil shape at the other end. Coil part 14b
Since the winding density of is so dense that the coil materials touch each other, the internal void 14c of the coil portion 14b has
The surface layer mortar 12 and the bottom layer mortar 13 do not penetrate and remain as voids. In addition, the coil portion 14
The end of b is arranged so as to coincide with the side surface of the concrete block 11. After the surface layer mortar 12 and the surface layer mortar 13 have hardened, when installing the concrete block 11 on the wall, pull out the end of the coil portion 14b as shown in FIGS. 5 and 6, and The concrete block 11 is fixed to the wall by wrapping the section around a fixing member such as a reinforcing bar of the wall.

Next, a method of manufacturing the concrete block in which the mounting member is embedded will be explained.

Figures 7a to 7e are diagrams showing the manufacturing process of concrete blocks. First, as shown in FIG. 7a, a formwork 16 for manufacturing concrete blocks is placed on top of a vibrating table 15 which is structured to vibrate back and forth and left and right by a vibrating mechanism (not shown). Next, the seventh
As shown in Figure b, surface layer mortar 12, which will become the surface layer of the concrete block, is placed in the frame 16, and then the vibrating table 15 is vibrated back and forth and left and right using the vibration mechanism to mold the surface layer mortar 12. frame 16
Infiltrate every corner of the surface layer mortar 1.
Remove any air bubbles from 2. Next, as shown in FIG. 7c, a mounting member 14 is placed on top of the surface layer mortar 12.
is arranged so that the tip of the coil portion 14b is in contact with the inner surface of the formwork 16.

Next, as shown in FIG. 7d, the surface layer mortar 1
2 and the upper part of the mounting member 14, and then the vibration table 15 is vibrated back and forth and left and right by the vibration mechanism to allow the bottom layer mortar to penetrate into every corner of the formwork 16, and to Air bubbles in the layered mortar 13 are removed. Next, Figure 7 e
As shown in FIG.
Apply high pressure from the top of step 3. As mentioned above, the semi-finished concrete block that has been pressure-formed using the high-pressure press 17 is easily stored and cured for at least 48 hours to harden the surface layer mortar 12 and the bottom layer mortar 13, and finally the surface layer mortar 12 After polishing the surface, the embedded concrete block for the mounting member is completed.

As the surface layer mortar 12, a mortar made of stone chips such as marble, calcium carbonate, and various cements such as white cement is used, and as the bottom layer mortar 13, an ordinary mortar made of river sand, pea gravel, and ordinary cement is used. . The surface layer mortar 12 and the bottom layer mortar 13 are made of mortar used in ordinary construction work, etc. to reduce moisture content, and the coil portion 1 of the mounting member 14 is
4b is densely formed, so the mounting member 1
Place the bottom layer mortar on top of 4 and apply vibration.
Furthermore, even if pressurized by the press 17, the surface layer mortar 12 and the bottom layer mortar 13 will not enter the internal gap 14c of the coil portion 14b of the mounting member 14. Therefore, when the tip of the coil portion 14b is pulled from the concrete block 11 after hardening,
The coil portion 14b extends smoothly to the outside.

Various shapes can be considered for the mounting member 14, examples of which are shown in FIGS. 8a to 8c. The mounting member 14 shown in figure a has a bent part 14a bent in a dogleg shape at one end, and a coil part 14b is formed at the other end, and the part shown in figure c has the same shape as one side of the concrete block. The mounting member 14 has a structure in which coil portions 14b are formed at both ends of a bar of the same size. In addition, the mounting member 14 shown in FIG.
A plurality of protrusions 14d are provided on the outer peripheral surface of the concrete block, and the mounting member 14 is prevented from slipping out from the concrete block by the protrusions 14d.

An example of a concrete block in which the mounting members shown in FIGS. 8a to 8c are embedded is shown in FIGS. 9a to 9c. As shown in the figure, the tips of the coil portions 14b are positioned at both ends of the concrete block.
A plurality of mounting members 14 are buried.

A concrete block with a mounting member buried therein as shown in FIGS. 9a to 9c is manufactured in a factory and transported to a construction site, etc. At the site, the end of the coil portion 4b is pulled out and the concrete block is attached to the wall. If you attach it to a fixed member, you can drill a hole in the side end of the concrete block as in the conventional method.
The difficult work of inserting the mounting member into the hole and hardening it with an adhesive such as concrete block bond can be omitted.

〔Effect of the invention〕

As explained above, according to the present invention, the following excellent effects can be obtained.

The mounting member embedded concrete block is buried so that the tip of the coil part of the mounting member is approximately aligned with the side end of the block and the inside of the coil part is hollow, so when mounting the concrete block on a wall surface etc., the coil of the mounting member The concrete block can be easily mounted on a wall by simply pulling out the end of the mounting member to the outside of the concrete block and locking it to a predetermined member on the wall.

The manufacturing method for a concrete block with a mounting member embedded is that after pouring mortar, which will become the block surface layer, in the block formwork, the mounting member is placed so that the tip of its coil portion is in contact with the inner surface of the block formwork, and the block is then placed on top of the mortar. The manufacturing process is almost the same as that of normal concrete blocks, in which mortar is placed as the bottom layer, and then pressure-formed using a press. can be manufactured.

[Brief explanation of drawings]

FIGS. 1 and 2 are views showing a conventional concrete block with a mounting member attached, and FIGS. 3 and 4 are a front view and a side view showing a part of a concrete block with a mounting member embedded according to the present invention. , 5th
Figures 6 and 6 are diagrams showing the state in which the coil of the mounting member is pulled out, Figures 7 a to e are diagrams showing the manufacturing process of the concrete block in which the mounting member is buried, and Figure 8 is a diagram showing the state in which the coil of the mounting member is pulled out.
Figures a to c are diagrams showing examples of attachment members, and Figures 9 a to
c is a diagram showing a concrete block in which the mounting member is embedded. In the figure, 11... Mounting member embedded concrete block, 12... Surface layer mortar, 13... Bottom layer mortar, 14... Mounting member, 15... Shaking table,
16...Formwork, 17...High pressure press.

Claims (1)

[Scope of Claims] 1. A mounting member having a coil portion in which at least one end is linear and the linear portion is wound into a coil shape with close intervals is installed in a flat concrete block to be mounted on a wall surface, etc. 1. A concrete block with a mounting member buried therein, characterized in that the tip of the coil portion is buried so that it substantially coincides with the side end of the block, and the inside of the coil portion is hollow. 2. Cast mortar to serve as the block surface layer in the block formwork, and place a mounting member on the mortar having a coil portion with at least one end being linear and the linear portions being wound in a coil shape with close intervals. The tip of the coil portion is arranged so as to be in contact with the inner surface of the block form, and mortar that will become the bottom layer of the block is placed on top of the mounting member, and then pressure molded using a press. A method for manufacturing a buried concrete block with mounting parts.