JP2837659B2 - Concrete repair finishing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete repair finishing method, and more particularly to a concrete repair finishing method using plastering.

[0002]

2. Description of the Related Art FIG. 2 is a flowchart showing an example of a conventional concrete repair finishing method. In the figure, first, plasterer performs foundation treatment on concrete to be repaired and finished other than the floor, such as walls, ceilings, beams, columns, and the like (step 21). In this ground treatment, after filling the concrete with wooden mortar with mortar etc., carefully sand the relatively large uneven part such as the part protruding from the formwork, misalignment, bulging of wooden concrete, etc. And remove.

[0003] Next, an adhesive is applied to the entire surface of the concrete foundation by means of a brush or the like (step 22). Subsequently, the base adjustment is performed (step 23). In this ground adjustment, the plasterer performs a partial repair of a bad place (for example, a margin of 5 mm or more) such as junkers, and a fitting adjustment repair such as dust and cutting around.

[0004] Next, plasterer applies ironing of mortar material to the entire surface of the concrete foundation with a gold iron to a thickness of about 1 mm to 3 m.
m (step 24), and then finish-coating the mortar material with a gold iron to a thickness of about 1 to 3 mm (step 25).

After the above-mentioned finish coating, it is dried for about one week to two weeks.
After a week, the following work is performed this time by a painter or a sprayer. That is, after completely removing deposits such as mortar droplets and oils and fats on the concrete surface, a primer treatment material is primed using a brush or a roller brush (step 26), and the sprayed tile material is sprayed using a sprayer. The main material is sprayed (step 27).

After that, after the main material is slightly dried, a main material convex portion processing for uniformly pressing the convex portion of the main material by attaching a thinner to a hard plastic roller is performed (step 28). And
Finally, the coloring material is sprayed with a sprayer as a finish, and the operation is completed (step 29).

[0007]

However, in the above-mentioned conventional concrete repair finishing method, steps 21 to 2 are required.
5 plastering work, usually 3 days or more, depending on the work area
It takes about 5 days, and it takes about 1 to 2 weeks to dry after the finish coating in step 25, depending on the season and weather, and a certain number of days for the painting or spraying work in steps 26 to 29. However, there is a problem that it takes a long time as a whole, the cost is high, and a plasterer and a painter or a sprayer are required.

Further, in the finishing work in step 29, any coloring can be performed by spraying a coloring material of any color, but the design is not free.

[0009] The present invention has been made in view of the above points,
It is an object of the present invention to provide a concrete repairing method capable of performing high-quality repair finishing at a low cost by only plastering in a short period of time.

[0010] Another object of the present invention is to provide a concrete repair finishing method capable of performing repair finishing with free design and free coloring.

[0011]

In order to achieve the above object, the present invention provides a mortar spraying machine for spraying a cement filler onto a required portion of a concrete surface whose surface has been treated and prepared, and immediately thereafter. A first work step of pressing the pressed part with a holding tool, and after the first working step, a cement filler is partially blown to a part where there is unevenness by a mortar spraying machine, and the holding tool is pressed almost simultaneously. 2) and a third operation step of, after completion of the second operation step, performing ball blowing finishing in which a cement filler or a different cement filler is sprayed onto a concrete surface with a mortar spraying machine to perform pattern finishing. It is characterized by.

In the present invention, since the second and third working steps can be performed merely by spraying the cement filler, there is no need for the skill of a conventional painter or sprayer. A cement filler can be sprayed on the concrete surface whose foundation has been adjusted, and at this time, a desired pattern can be formed.

Here, in the third working step, a cement filler or a cement filler different from the cement filler is sprayed on a concrete surface by a mortar spraying machine, and then pressed by a pressing tool to finish the surface shape in a desired pattern. Or, after spraying a cement filler or a cement filler different from it with a mortar spraying machine on the surface of the concrete to which a mold having a desired shape is attached, the mold is removed after the cement filler has hardened to a certain extent, and the This is achieved by forming the shape of the mold on the concrete surface.

The present invention is also directed to a fourth operation for applying or spraying a colorant of a desired color to a desired position on a pattern-finished surface after the base is dried, at a desired position on the surface which has been patterned. The method further includes a step. According to the present invention, a desired pattern can be colored in a desired manner, and a free design can be freely colored in comparison with the related art.

[0015]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a flowchart for explaining one embodiment of the concrete repair finishing method according to the present invention. In this embodiment, all operations described below are performed only by plasterers. First, plasterers work on walls, ceilings,
A foundation treatment is performed on concrete that is to be repair-finished on parts other than the floor, such as beams and columns (step 11).
In this ground treatment, after filling the concrete with wooden mortar with mortar etc., carefully sand the relatively large uneven part such as the part protruding from the formwork, misalignment, bulging of wooden concrete, etc. And remove.

Next, an adhesive is applied to the entire surface of the concrete foundation with a brush or the like (step 12). Subsequently, a base adjustment is performed (step 13). In this ground adjustment, the plasterer performs a partial repair of a bad place (for example, a margin of 5 mm or more) such as junkers, and a fitting adjustment repair such as dust and cutting around. The operations in steps 11 to 13 described above are the same as the operations in the conventional method described together with steps 21 to 23 in FIG.

Subsequently, in this embodiment, after the area requiring special curing is covered with vinyl or the like and the surrounding is cured (step 14), it is placed on the surface of the concrete which has been subjected to the foundation treatment (partial repair, etc.). Then, a predetermined mortar repair material is blown downward by using an ultra-small mortar spraying machine (for example, a mortar pump having a trade name of "DM8" manufactured by Shin Meiwa Co., Ltd.) (step 15). In other words, this underblowing is from two people
Three plasterers use a mortar pump to spray a predetermined mortar material over the entire surface of the concrete, and immediately after that one or two plasterers press down with a metal trowel. As the mortar repairing material used at this time, for example, a product name “Moltop 20 #” manufactured by Onoda Corporation,
Alternatively, there is a cement filler such as “Moletop 30 #”.

Subsequently, after the above-mentioned underblowing is completed, the same mortar repairing material as that used in the above-mentioned underblowing is partially sprayed with a mortar pump to a portion where there is unevenness in pursuit, and pressed with a metal trowel almost simultaneously. Finish blowing is performed to make the finished surface smooth (step 16). The above-mentioned under-spray and finish-spray simply spray the mortar repair material, and thus do not require the skill of a painter or a sprayer like a conventional undercoat, and can be easily performed by plastering.

Next, ball blowing is performed (step 17). In this ball blowing finish, plasterer uses a mortar spraying machine (for example,
Jabbo Gun manufactured by Yabhara Sangyo Co., Ltd.) and then press finish using holding tools such as gold iron, wood iron, roller, brush, etc. to change the surface shape arbitrarily and apply various patterns Is the finishing work. As the mortar repairing material used at this time, for example, a cement filler of the above-mentioned trade name “Mortop 20 #” or “Mortop 30 #” or a trade name “Mortop 1 #”
Such as cement filler.

When performing the above patterning, a mold having an arbitrary shape made of plywood, plastic, or the like is prepared in advance, and the mold is painted with oil or the like in advance so that the mold can be easily removed. Attach to the surface, spray the above mortar material from above with a jumbo gun,
The plasterer finishes the press using a pressing tool such as a metal trowel, wooden trowel, roller, or brush, and then removes the mold after the mortar has hardened to some extent or completely and the mold can be removed. Can be attached.

Finally, coloring (top finishing) is performed and the operation is completed (step 18). This coloring is
After about one to two weeks have passed until the patterned concrete is completely hardened, the coloring is performed by applying a coloring material of any color using a roller or a mortar spraying machine. In this case, if a mortar spraying machine is used, a curing cost and a construction period are required. Therefore, it is desirable to use a roller as much as possible. Further, as the above-mentioned coloring material, an inorganic pigment is preferable because it does not have pollution like an organic pigment. In this manner, a concrete repair finish in which various colors are colored in a free design can be performed.

Further, in this embodiment, since the finishing is performed by under-blowing, finish-blowing using a mortar spraying machine, and ball-blowing, it is about 2 times less than the under-coating or finish-coating using a conventional brush or iron. Work efficiency of about 4 times can be realized,
In addition, since the mortar is mainly sprayed using a mortar spraying machine, there is no need to build a scaffold at the time of coating. It is inexpensive, and all operations can be performed only by plasterers.

In the underblowing step and the finishing blow step, a jumbo gun can be used as a mortar spraying machine, and in the ball blowing finishing step, a mortar pump can be used as a mortar spraying machine.

In the above description, all operations are performed by plasterers, but a total of four people, two plasterers, one painter, and one sprayer, form a team and form a completely new job. You can also work with. In this case, the sprayer specializes in spraying using a mortar spraying machine, the painter specializes in curing, and the plasterer performs spraying and then specializes in finishing mortar and cement filler. By doing so, each other's expertise can be fully utilized.

[0026]

As described above, according to the present invention,
Since the plastering can be performed by spraying a cement filler on the concrete surface where the plastering and subsurface preparation has been performed, the conventional painter or sprayer can perform the shape coloring finishing, In addition, concrete repair finishing with shape coloring finish can be performed at low cost without painting or spraying, and at that time, a desired pattern can be formed, so that there is more flexibility than before. Concrete repair finish is possible.

Further, according to the present invention, a desired pattern can be colored in a desired manner, and a free design can be freely colored in comparison with the related art. Can be used for wide concrete repair.

[Brief description of the drawings]

FIG. 1 is a flowchart illustrating an embodiment of the method of the present invention.

FIG. 2 is a flowchart illustrating an example of a conventional method.

[Explanation of symbols]

 11 to 18 Processing steps according to an embodiment of the present invention 21 to 29 Processing steps according to a conventional example

Claims (4)

(57) [Claims] A first work step of spraying a cement filler onto a required portion of a concrete surface subjected to a ground treatment and a ground preparation with a mortar spraying machine, and pressing a sprayed part immediately afterwards with a holding tool; After the completion of the first work process, a second work process in which the cement filler is partially sprayed to a portion where there is unevenness by a mortar spraying machine and pressed almost simultaneously with a holding tool, And a third operation step of spraying the cement filler or a cement filler different from the cement filler onto the concrete surface with a mortar spraying machine to perform ball-blowing finishing. 2. The method according to claim 1, wherein the third working step comprises: spraying the cement filler or a cement filler different from the cement filler onto the concrete surface with a mortar spraying machine; The method for repairing and finishing concrete according to claim 1, wherein: 3. The method according to claim 3, wherein the cement filler or a cement filler different from the cement filler is sprayed on a concrete surface on which a mold having a desired shape is attached by a mortar spraying machine. The concrete repairing method according to claim 1, wherein the mold is removed after hardening, and the shape of the mold is formed on the concrete surface. 4. A fourth operation step of applying or spraying a colorant of a desired color to a desired position on the surface patterned by the third operation step after the base is dried. The concrete repairing and finishing method according to any one of claims 1 to 3, wherein the concrete repairing method is included.