JPH04353155A - Constructing concrete structure finished with mortar coating - Google Patents

Abstract

PURPOSE:To obtain a method for constructing a concrete structure in which separation of surface mortar does not occur. CONSTITUTION:Ground mortar 2 is applied to the surface of a concrete building frame 1, and a plurality of holes 5 are made with cylindrical punches on the surface of the applied ground mortar 2 before curing of the ground mortar 2. After that, mortar 3 is applied over the surface of the ground mortar 2, and thereby a concrete structure is formed.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of applying mortar firmly to the surface of a base mortar applied to the surface of a concrete body.

0002

[Prior art and its problems] Conventionally, when tiling the surface of a concrete body, a base mortar is applied to the surface of the concrete body, and an adhesive mortar is further applied to the surface of this base mortar. Tile walls are formed by pasting tiles on the surface of the attached mortar,
If the adhesive strength of the mortar to the base mortar is low, there is a problem in that the mortar peels off from the surface of the base mortar, resulting in a tile falling accident.

0003

[Means for Solving the Problems] The present invention has been devised in view of the above-mentioned conventional problems, and an object of the present invention is to provide a construction method that can firmly integrate surface mortar with base mortar. The gist of this is that a base mortar is applied to the surface of a concrete body, and before the base mortar hardens, multiple holes are punched on the surface of the base mortar using a cylindrical punch, and then a plurality of holes are punched on the surface of the base mortar. It is to apply mortar.

0004

[Effect] If you punch multiple holes with a cylindrical punch before the base mortar hardens, and then apply mortar to the surface of the base mortar, the mortar will penetrate into the holes punched. The holes allow it to be firmly integrated with the base mortar, and the mortar will not separate from the base mortar.

[0005]

Embodiments Hereinafter, embodiments of the present invention will be explained based on the drawings. Figure 1 is a cross-sectional diagram of a concrete structure with tiles pasted on its surface, and a base mortar 2 is applied to the surface of the concrete frame 1.
A pasting mortar 3 is further applied to the surface of the wall, and tiles 4, 4 are pasted through this pasting mortar 3.
When a falling tile accident occurs, the cause is that the mortar 3 peels off from the base mortar 2 and falls.In order to firmly integrate the mortar 3 with the base mortar 2, Before hardening of the base mortar 2, holes 5, 5, 5 are made on the surface of the base mortar 2.
The mortar 3 is infiltrated into the mortar 5, 5, and the mortar 3 is firmly integrated with the base mortar 2.

In order to form these holes 5, 5, 5, in this example, a punch 6 as shown in FIGS. A plurality of holes 5, 5, 5 are formed on the surface of 2, and then mortar 3 is applied to the surface.

The punch 6 shown in FIG. 2 is formed into a cylindrical shape having a hollow portion 6a, and engagement grooves 6 are formed at predetermined intervals on the circumferential surface of the punch 6.
b, 6b are formed, and a disk-shaped stopper 7 can be engaged with each engagement groove 6b, so that the depth of the hole 5 formed by the stopper 7 can be adjusted as appropriate. . Therefore, if you want to form a deep hole 5,
The depth can be adjusted by engaging the stopper 7 with the engagement groove 6b on the back side.

[0008] For example, if the thickness of the base mortar 2 is 2
If the depth of the hole 5 is about 5 mm, the depth of the hole 5 is 2 to 10 mm.
The distance between the holes 5 can be approximately 300 mm. Also, the diameter of the punch 6 is 10~
A diameter of about 50 mm can be used.

The punch shown in FIG. 3 has a conical tip with a pointed tip, and the punch shown in FIG. 4 has a flared tip. be. Incidentally, such a punch 6 can be used by the worker by holding it in his/her hand, but it is also possible to use it by attaching it to the tip of a vibrating tool 8 as shown in FIG. However, the holes 5 can also be formed on the surface of the base mortar 2. An explanatory diagram of the work is shown in FIG. or,
Furthermore, the punch 6 can be attached to a rotary tool 9 as shown in FIG. 7, and the hole 5 can be formed while the punch 6 is rotated by the rotary tool 9. Incidentally, the punch 6 shown in FIG. 7 has serrations formed on its circumferential surface.

The shape of the punch 6 can be changed as appropriate, but it is sufficient that the mortar of the base mortar 2 enters into the internal hollow part 6a when it is inserted into the surface of the base mortar 2 before hardening. By inserting mortar into the hollow portion 6a of the punch 6, the holes 5, 5 can be formed satisfactorily. Incidentally, after the hollow part 6a is filled with mortar, the mortar in the hollow part 6a can be removed to the outside by applying appropriate vibrations or the like.

Incidentally, in order to form the hole 5, a drilling tool 10 as shown in FIG. 8 can also be used. That is, this hole punching tool 10 has a flat plate material 11 with a handle 12 on the back surface, and a plurality of punches 6 are erected at predetermined intervals on the surface of this flat plate material 11. If the drilling tool 10 is used, a plurality of holes 5, 5, 5 can be formed on the surface of the base mortar 2 at one time. Note that the hole-drilling tool 10 may be formed in a shape as shown in FIG. 9, and can form a plurality of holes 5, 5, 5 on the surface of the base mortar 2 at one time.

Furthermore, a roller tool 1 as shown in FIG.
3 can also be used to form the holes 5, 5, and this roller tool 13 has a plurality of punches 6, 6, 6 erected at predetermined intervals on the circumferential surface of a cylindrical roller body 14,
A grip bar 15 is provided on the side surface in a laterally protruding manner, and the holes 5, 5, 5 can be easily formed by gripping this grip bar 15 by hand and rolling it on the surface of the base mortar 2, as shown in FIG. It is something that can be formed.

In this example, a base mortar 2 is applied to the surface of the concrete frame 1 at the site, and holes 5 are punched into the surface with a punch 6 before the base mortar 2 hardens.
, 5 has been exemplified, however, the punch 6 can be used to form the holes 5 in a concrete structure formed using formwork in a factory as well. That is, concrete is poured into a formwork to form a concrete frame 1, a base mortar 2 is poured onto the surface of the concrete frame 1, holes 5 are formed on the surface with a punch 6 before the base mortar 2 hardens, and then Tiles 4 can be attached by applying mortar 3 to the surface. Further, the pasting mortar 3 may be a finishing mortar, and in this case, the tiles 4 are not pasted and the finishing mortar is applied to the surface of the base mortar 2 to complete the concrete structure.

As described above, in this example, the holes 5 are formed on the surface of the base mortar 2 with the punch 6, and then mortar is applied to the surface, so that the mortar on the surface side with respect to the base mortar 2 has no holes. Strongly integrated through 5,
The mortar on the surface side does not peel off, making it possible to create a concrete structure that is free from falling accidents.

[0015]

Effects of the Invention The method of constructing a mortar-coated concrete structure of the present invention is to apply a base mortar to the surface of a concrete body, and before the base mortar hardens, a cylindrical punch is used to apply a plurality of base mortar to the surface of the base mortar. Since we decided to drill holes and then apply mortar to the surface of the base mortar, we could easily make multiple holes on the surface of the base mortar with a punch and firmly stick the mortar to the surface through these holes. This prevents the surface mortar from peeling off from the underlying mortar, eliminating accidents such as falling tiles.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional diagram of a concrete structure with tiles pasted on its surface.

FIG. 2 is a perspective view of essential parts showing an example of a punch.

FIG. 3 is a perspective view of essential parts showing an example of a punch.

FIG. 4 is a perspective view of essential parts showing an example of a punch.

FIG. 5 is a perspective view of a vibrating tool with a punch attached thereto.

6 is a perspective view illustrating the operation of forming holes in the surface of the base mortar using the vibrating tool of FIG. 5; FIG.

FIG. 7 is a perspective view of a rotary tool with a punch attached thereto.

FIG. 8 is a perspective view of a plate-shaped drilling tool.

FIG. 9 is a perspective view of another example of the drilling tool.

FIG. 10 is a perspective view of the roller tool.

FIG. 11 is an explanatory diagram of a work in which holes are formed on the surface of the base mortar using the roller tool of FIG. 10;

[Explanation of symbols]

1 Concrete frame 2 Base mortar 3　Packing mortar 4 Tile 5 holes 6 Punch 6a Hollow part 6b Engagement groove 7 Stopper 8 Vibration tool 9 Rotary tools 10 Hole drilling tool 11 Flat plate material 12 Handle 13 Roller tool 14 Roller body 15 Grip bar

Claims (1)

[Claims] Claim 1: A base mortar is applied to the surface of a concrete frame, and before the base mortar hardens, a plurality of holes are punched on the surface of the base mortar using a cylindrical punch, and then the mortar is applied to the surface of the base mortar. A construction method for mortar-coated concrete structures characterized by applying.