JP2019031879A - Repair method of floor - Google Patents

Abstract

To provide an indoor floor repair method that has short construction time, does not need any longer curing period after construction, and can use it as soon as possible in a floor construction method that constructs a kitchen, a workplace of supermarket, a floor surface of a food factory or the like, and provide a floor construction method that eliminates any puddle.SOLUTION: A construction method for a floor having an indoor wet surface and oily surface includes a substrate treatment process of subjecting a substrate of the floor to a surface treatment, a last painting process of coating resin, and a surface finishing process of finishing the surface of resin. By adding a middle painting process between the last painting process and the surface finishing process, a skid-proof capacity effect is imparted to the floor by way of dispersion of silica sand.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a floor construction method for constructing floor surfaces of kitchens, food factories, and supermarkets. Specifically, it can be finished in about 5 hours after the surface treatment, can be applied to oil surfaces and wet surfaces, has anti-slip properties, The present invention relates to a method capable of repairing a floor without taking a break from business because it has excellent chemical properties, antibacterial properties, abrasion resistance, and heat resistance, and odors can be removed in one hour after completion of construction.

Kitchen floors are overused, and various organic substances, food additives, and animal and vegetable oils are used, and hot water spills out, causing deterioration of the floor, making it unsuitable for hygiene and safety. Is in a state. However, with the existing refurbishment method, construction was not possible without stopping the kitchen for at least two days.
In general, the floors of kitchens, food factories, and super work areas are coated with a flooring material such as epoxy resin at the time of construction, and some are tiled. However, due to deterioration over time, the coating material is worn and peeled off, which is in an unsanitary state. In addition, the tiled part has poor slip resistance and is in a sliding state. In general kitchen floor renovation, MMA resin is used, but this material has a problem of adhesion on wet surfaces, and must be forced to dry with a strong fire such as a burner. Since a strong odor is generated, it takes a considerable time (5 to 6 hours) after construction to remove the odor. In addition, when an epoxy resin coating is applied, it takes 3 days to apply the coating several times (curing / drying time is required for each process), so it cannot be used on a kitchen floor that cannot be rested. Also, with such a construction method, work in a short period of time is not completed, and even if local construction such as concrete placement can be completed in one day, the cast concrete has a predetermined strength characteristic. In order to exhibit, a curing period of several days to 1 to 2 weeks is necessary, and during that time, the repaired part cannot be used, and for example, in stores such as supermarkets, it hinders business.

  Various construction techniques have been proposed for floor repair methods. In Patent Document 1, after applying an adhesion-imparting agent on a concrete floor surface, a vinyl ester flake mixture in which 10% to 50% of flakes having a diameter of 1 mm to 4 mm are mixed with a vinyl ester resin on the upper surface is prescribed. Apply a thickness, on the surface of this vinyl ester flake mixture, provide a joint with a predetermined width and lay a surface flooring such as enameled concrete or heat-resistant tile, and on the joint, vinyl ester flake mixture of the same material as above It proposes a method of filling construction. This method is excellent in durability of the flooring material. The invention according to Patent Document 2 includes a step of adjusting the incline on the concrete base, a step of forming an adhesive layer on the inadequate surface, and a step of laying a flat plate that has been surface-treated in advance on the adhesive layer; A construction method of an indoor concrete floor structure characterized by comprising a step of performing joint treatment between laid flat plates can be applied regardless of whether it is new or existing.

JP-A-5-52024 JP 2000-320113 A

  However, the construction method according to Patent Document 1 does not enable construction in a short period of time. Since the construction method according to Patent Document 2 uses an epoxy resin, there is a difficulty in curing and drying time for each process. Moreover, since the thickness of a general coated floor material is about 8 to 10 mm, the floor material is insufficient in thickness, and it is difficult to form a water gradient and eliminate a puddle on the floor. Therefore, the object of the present invention relates to a floor construction method for constructing a kitchen, a super work place, a floor of a food factory, etc., and the construction time is short, and a long curing period is not required after construction. An object of the present invention is to provide an indoor floor renovation method that can be performed and to provide a floor construction method that eliminates puddles.

  The present invention has been proposed in view of the above problems, and in a construction method of a floor having a wet surface and an oily surface in a room, a ground treatment step for performing ground treatment on the ground surface of the floor, and a top coat for applying a resin It consists of a process. Moreover, you may provide the surface finishing process of finishing the surface of resin after the top-coating process. Furthermore, by adding an intermediate coating process between the top coating process and the surface finishing process, it is possible to have an anti-slip effect by spreading silica sand.

  The ground treatment process is divided into a cleaning process for cleaning the floor surface, a process of scraping and removing a part or all of the existing flooring, and a process of removing only the defective part while leaving the existing flooring. Then, it consists of the process of apply | coating the surface treatment material according to the foundation | substrate of a floor.

  Furthermore, to eliminate water accumulation, the resin mortar composition is a kneaded polyester resin / vinyl ester resin and aggregate, and the thickness of the mortar is adjusted to 10 to 40 mm along the water gradient while introducing air. We propose a construction method for indoor floors by curing in 1 hour after application and forming a water gradient. The aggregate is preferably a dry round natural stone or artificial stone.

  The top-coating step may be a step of applying a resin mortar composition, and the top-coating step may be a primer coating step and spraying of an ultrafast curing high hardness urethane. When the resin mortar composition is applied, the resin mortar composition may be composed of an unsaturated polyester resin / vinyl ester resin and an aggregate.

  In the surface finishing step, a top coat may be applied, and an anti-slip material may be further mixed, or an antibacterial agent may be mixed. In another example, the surface finishing step may apply a roller to the surface of the overcoat layer. Further, the surface finishing process may be applied with aggregate. When the top coating process is spray construction, it is fixed with a super-hard-curing high-hardness urethane resin while dispersing aggregate.

  In addition, if an odor outlet that discharges odors in the room to be constructed is placed at the entrance of the room and odor discharge means that mechanically discharges odors is used, odors and dust generated in the construction process can be removed appropriately. it can.

The floor construction method according to the present invention makes it possible to perform construction even on floors and wet surfaces that are soiled with oil by using a special ground treatment material, and there is almost no odor after the construction is completed. Excellent anti-slip properties, antibacterial properties, and heat resistance, and a safe and clean floor can be realized in about 5 hours / 50m ² after the ground treatment between the end of business on the day and the next morning preparation time. In addition, the thin-film method that reduces the thickness of the flooring facilitates the construction of narrow passages, and the thick-film method that increases the thickness of the flooring eliminates water pools and eliminates water pools. If it is a spray construction method using the method, there is an effect that a large area construction can be constructed in a short time.

  In addition, according to the floor construction method according to the present invention, a water-based rigid urethane resin or unsaturated polyester resin / vinyl ester resin is used, so that the floor structure has high strength and is excellent in impact resistance, wear resistance, heat resistance, and antibacterial properties. Can be realized.

  In repairing the floor surface of an existing building, its use can be resumed in a short period of time. For example, in a store such as a supermarket, business operations are not hindered.

3 is a flowchart showing steps of a construction method according to Example 1. It is the schematic which shows the floor structure finished by the construction method which concerns on FIG. 6 is a flowchart showing steps of a construction method according to Example 2. It is sectional drawing of the floor structure finished by the construction method concerning FIG. 10 is a flowchart showing a process of a construction method according to Example 3. It is the schematic which shows the floor structure finished by the construction method which concerns on FIG. 10 is a flowchart showing steps of a construction method according to Example 4. It is the schematic which shows the floor structure finished with the construction method which concerns on FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In each figure, the same number is attached | subjected to the same part, and the overlapping description is abbreviate | omitted. In addition, this invention is not limited to the Example shown below.

  Example 1 will be described in detail with reference to the drawings. FIG. 1 is a flowchart showing steps of a construction method according to the present invention.

FIG. 1 is a flowchart showing an example of steps of a construction method according to the present invention.
Please refer to FIG. The floor construction method in Example 1 is a construction method particularly suitable for places where kitchen equipment cannot be moved or for first-aid partial construction, and a ground treatment process (S110) for performing ground treatment on the floor ground. And the top coating process (S120) which apply | coats a resin mortar composition, and a surface finishing process (S130). The ground treatment process (S110) of this construction method includes a cleaning process (S111) for cleaning the floor surface, and an existing floor material removal / shaving process (S112) for removing or cutting a part or all of the existing flooring. It is good to do so.
The ground treatment is a pretreatment that shows a chipping treatment, a sanding treatment for treating dust and the like with a sander, etc., and a cleaning treatment for removed waste. Specifically, the floor surface of concrete, etc. is cleaned to remove contaminants such as adhering oil, soil and mud. If the substrate is wet, it may be treated with a wet / oil level primer. Also, the latency and efflorescence are completely removed with a floor material grinder. Remove existing coatings. After that, the floor material to be repaired on the existing floor surface is removed. At that time, joints are cut at appropriate intervals at the end or flat portion of the construction site such as near the wall or around the accessory.

  The resin mortar composition used in the overcoating step (S120) is preferably composed of an unsaturated polyester resin / vinyl ester resin and an aggregate. A method for producing the resin mortar thus composed will be described. For example, a curing agent is added to the unsaturated polyester resin that is the main agent. The ratio between the main agent and the curing agent may be determined in consideration of the construction environment such as temperature and humidity during construction. Care should be taken not to cause peeling or swelling due to curing shrinkage of the resin mortar, or deterioration of physical properties depending on the degree of addition of the curing agent. And after attaching a pail can to a mixing stirrer, it mixes in the ratio of 1kg of mortar resin and 3-4kg of aggregates. If the kneading state is suitable, sprinkle and apply anti-slip material such as silica sand before the resin mortar hardens while spreading and applying to the construction site where the thickness adjustment bar is laid, and after the resin mortar hardens, the polyester resin 0.3 kg may be applied (S121).

  As the surface finishing step (S130), after the above-described overcoated layer is cured, if a topcoat layer is provided on the surface, it becomes easy to prevent contamination, or an anti-slip material such as silica sand may be blended. In the case where an unsaturated polyester resin / vinyl ester resin is used in the overcoating step, it is desirable to use the same unsaturated polyester / vinyl ester resin as the top coat layer because of high adhesion. In addition, an antibacterial agent is mixed in the top coat layer. When an unsaturated polyester resin / vinyl ester resin is used, the odor can be eliminated in about one hour after the completion of construction. After the surface finishing step (S130), the process proceeds to the curing and curing step (S140).

Please refer to FIG. FIG. 2 is a cross-sectional view of the floor structure finished by the construction method according to FIG. According to FIG. 2, a special primer and a primer are applied on the concrete base C as a base treatment material, and a special base treatment material coating layer 11 is formed. Special primers are preferred when applied 0.2 kg / m ^2, a primer 0.3 kg / m ^2. A top coat layer 12 using the above-described polyester resin and vinyl ester resin is formed thereon, and a top coat layer 13 is further formed thereon. Resin mortar polyester resin and vinyl ester resin is 2.5 kg / m ^2, the top coat is preferable to apply the 0.3 kg / m ^2. By such a coating process, the thickness of the coating layer can be about 2 to 3 mm. Thus, by using a polyester resin and a vinyl ester resin, it is possible to realize a floor structure that is high in strength, resistant to impacts, wear and chemicals, and excellent in impact resistance, wear resistance, and high load. In addition, the floor construction is completed in about 8 hours / 50m ² including the drying.

  Furthermore, an odor generated in the construction process may be appropriately removed by disposing an air discharge port for discharging indoor air to be constructed at the entrance of the room and using an air discharge means for mechanically discharging the air.

  Example 2 will be described in detail with reference to the drawings. FIG. 3 is a flowchart showing steps of a construction method different from the first embodiment.

The floor construction method of Example 2 is a construction method that eliminates puddles in particular, and includes a ground treatment process (S210) for performing ground treatment on the ground surface of the floor, and an overcoating process (S220) for applying a resin mortar composition. ) And a surface finishing step (S230) for applying a topcoat layer.
In Example 2, the ground treatment step (S210) and the surface finishing step (S230) for applying the topcoat layer are the same as those in Example 1, and thus the description thereof is omitted here.

  The resin mortar composition used in the overcoating step (S220) is preferably composed of a polyester resin, a vinyl ester resin, and an aggregate. A method for producing the resin mortar thus composed will be described. The ratio of the polyester resin and vinyl ester resin to the aggregate is 1: 5.5 (weight ratio). The main agent and the curing agent are put in a desired container, for example, a kneading can, and this is added and kneaded using a mortar mixer while stirring. After confirming the desired kneading, the aggregate is gradually added. A dry round stone is suitable as the aggregate. The stones to be added may be natural stones or artificial stones, but round stones are preferred. When the aggregate has been charged, knead well again. As soon as the kneading is finished, the entire amount of the container (kneading can) is spread over the work site, air is introduced while mixing the square iron so as to rotate with respect to the kneaded material, and the mixture is applied along a water gradient.

Please refer to FIG. FIG. 4 is a sectional view of the floor structure finished by the construction method according to FIG. According to FIG. 4, a special primer and a primer are applied as a base treatment material on the concrete base C to form a special base treatment material application layer 21. A top coat layer 22 using the above-described polyester resin and vinyl ester resin is formed thereon, and a top coat layer 23 is further formed thereon. It will be understood that the topcoat layer 22 is composed of resin mortar M, aggregate S, and air bubbles A. Note that the air bubbles A are exaggerated. By such a coating process, the thickness of the overcoat layer is preferably about 3 cm, and in some cases 2.5 to 4 cm. In this way, when air is applied to a resin mortar composition obtained by kneading polyester resin, vinyl ester resin, and aggregate, the strength of the floor surface is increased. The structure can be realized. Although the time required for this top coating process is about 2 hours, the floor construction is completed in a short time of 10 hours / 50 m ² .

  Furthermore, an odor generated in the construction process may be appropriately removed by disposing an air discharge port for discharging indoor air to be constructed at the entrance of the room and using an air discharge means for mechanically discharging the air.

  Embodiment 3 will be described in detail with reference to the drawings. FIG. 5 is a flowchart showing a process of a modification of the second embodiment.

Please refer to FIG. The floor construction method of Example 3 includes a ground treatment process (S310) for performing ground treatment on the floor ground, an overcoating process (S320) for applying a resin mortar composition, an intermediate coating process (S330), And a surface finishing step (S340) for applying a topcoat layer.
The ground treatment process (S310) of this construction method includes a cleaning process (S311) for cleaning the floor surface, an existing floor material removal / shaving process (S312) for removing or shaving part or all of the existing flooring, It is preferable to include a step (S 313) of applying a base treatment material to the base. A primer that can be used on a wet surface may be used as the base treatment material, and is not particularly limited.

  The resin mortar composition used in the overcoating step (S320) is preferably composed of an unsaturated polyester resin / vinyl ester resin and an aggregate. A method for producing the resin mortar thus composed will be described. First, a curing agent is put into the unsaturated polyester resin that is the main agent. The ratio between the main agent and the curing agent may be determined in consideration of the construction environment such as temperature and humidity during construction. Care should be taken not to cause peeling or swelling due to curing shrinkage of the resin mortar, or deterioration of physical properties depending on the degree of addition of the curing agent. And after attaching a pail can to a mixing stirrer, it mixes in the ratio of 1 kg of mortar resin and 5.5 kg of aggregates. If the kneading state is suitable, it is spread and applied to the construction site where the thickness adjustment bar is laid (S321).

  Next, an intermediate coating process (S330) is performed. In this step, an intermediate coating / anti-slip material may be applied on the top coating layer. The coating material used as the intermediate coating / anti-slip material is not particularly limited. Thus, by adding the intermediate coating process between the top coating process and the surface finishing process, it is possible to have an anti-slip effect by spreading silica sand.

  As the surface finishing step (S340), after the above-described overcoated layer is cured, if a topcoat layer is provided on the surface, it becomes easy to prevent contamination, or an anti-slip material such as silica sand may be blended. In the case where an unsaturated polyester resin / vinyl ester resin is used in the overcoating step, it is desirable to use the same unsaturated polyester / vinyl ester resin as the top coat layer because of high adhesion. In addition, an antibacterial agent is mixed in the top coat layer. When an unsaturated polyester resin / vinyl ester resin is used, the odor can be eliminated in about one hour after the completion of construction. After the surface finishing step (S340), the process proceeds to the curing and curing step (S350).

Please refer to FIG. FIG. 6 is a schematic view showing the floor structure finished by the construction method according to FIG. According to FIG. 6, a special primer and a primer are applied on the concrete substrate C as a substrate treatment material to form a special substrate treatment material application layer 31. Special primers are preferred when applied 0.2 kg / m ^2, a primer 0.3 kg / m ^2. An overcoat layer 32 is formed thereon, and an intermediate coat / antislip layer 34 and a topcoat layer 33 are formed thereon. By such a coating process, the thickness of the coating layer can be about 5 mm.

  Furthermore, an odor generated in the construction process may be appropriately removed by disposing an air discharge port for discharging indoor air to be constructed at the entrance of the room and using an air discharge means for mechanically discharging the air.

  Embodiment 4 will be described in detail with reference to the drawings. FIG. 7 is a flowchart showing the steps of a construction method different from those in Examples 1, 2, and 3.

Please refer to FIG. The floor construction method of Example 4 is a construction method particularly suitable for construction in a wide area, and a ground treatment process (S410) for performing ground treatment on the ground of the floor, a top coating process (S420), And surface finishing step (S430).
The ground treatment process (S410) of this construction method includes a cleaning process (S411) for cleaning the floor, an existing floor material removal process (S412) for removing part or all of the existing floor material, and a terminal process (S413). It is good to make it consist of.

In the top coating process (S420), primer application (S421) and spraying of ultrafast curing urethane (S422) are performed, and spraying of the ultrafast curing urethane described above while spraying aggregate S as a surface finishing process (S430). (S431, S432) may be performed. In addition, it is preferable that primer 0.2 kg / m ² is applied and spraying of the ultrafast curing urethane is 2 kg / m ^{2 in} total. By such a coating process, the thickness of the coating layer can be about 2 mm. In addition, although the work time requires about 3 hours to dry the primer layer, the floor construction is completed in a short time of about 8 hours.

Please refer to FIG. FIG. 8 is a schematic view showing a floor structure finished by the construction method according to FIG. According to FIG. 8, a primer is applied on the concrete base C subjected to the base treatment, and a primer coating layer 45 is formed. An ultrafast curing urethane layer 46 sprayed with an ultrafast curing urethane resin is further formed thereon, and a surface layer 47 sprayed with the ultrafast curing urethane resin while the aggregate S is sprayed thereon is formed. In addition, a cement-based foundation adjustment coating material using a water-based epoxy resin as an admixture is used as the foundation treatment material. Moreover, as for the ultra-fast curing urethane resin used for spraying, it is good to use the undiluted | mixed solution by two-component mixing of main ingredient: isocyanate NCO%: 1.0-45.0% and hardening | curing agent: polyol: molecular weight 300-6000, for example. Ultrafast curing urethane resin In this way, by using the ultrafast curing urethane resin, it is possible to realize a floor structure that is high in strength, resistant to impact, abrasion and chemicals, and excellent in impact resistance, abrasion resistance and high load. In addition, since the work time can be shortened, it is possible to perform construction in a place subject to time restrictions, for example, in a backyard of a supermarket where people come and go. In addition, although it takes about 3 hours to dry the primer layer, the floor construction is completed in a short time of about 8 hours / 150 m ² .

  As described in Examples 1 to 4, the construction method of the present invention is easy to construct, and does not require a long curing period after construction, and can be used immediately. Therefore, in a store such as a supermarket, for example, a safe and clean floor structure can be realized between the end of business on the day and the next morning preparation time, and there is almost no trouble in business.

  As mentioned above, although preferable embodiment in the construction method of the floor concerning this invention has been described, it will be understood that various modifications are possible without departing from the technical scope of this invention.

  The construction method according to the present invention can be applied for a short period of time, whether it is construction of a narrow passage or construction of a large area, and is also useful for eliminating water pools. It can be used for backyards and food factories, and can be used for a wide range of hospitals, nursing homes, hotel and inn floors.

S110 S210 S410 Substrate treatment step S111 S211 S411 Oil surface / dirt surface cleaning step S112 S212 S412 Existing floor material removal step S113 S213 S413 Special substrate treatment material application step S120 S220 S420 Top coating step
S121 S321 Resin mortar coating process
S130 S340 Surface finishing process
S140 S350 Curing curing process
S330 Intermediate coating and anti-slip finishing process
S221 Kneading process of resin mortar composition
S222 Aggregate charging step into the kneaded composition
S223 Coating process while introducing air
11 21 31 Special surface treatment material coating layer
2 22 32 resin mortar layer
13 23 33 Topcoat layer
34 Intermediate and anti-slip layer
45 Primer layer
46 Super fast curing urethane layer
47 Aggregate / Super fast curing urethane layer
C Concrete surface
M resin mortar
S aggregate

Claims (11)

In the construction method of a floor having an indoor wet surface and / or oil surface,
A ground processing step for performing ground processing on the floor ground;
An overcoating step of applying a resin mortar composition;
A surface finishing step of finishing the surface of the layer coated with the resin mortar composition;
An indoor floor construction method characterized by comprising:   The ground treatment step includes a washing step for washing the floor surface, an existing floor material removal step for removing part or all of the existing floor material, and a step for applying the ground treatment material to the ground of the floor. The indoor floor construction method according to claim 1, wherein the indoor floor construction method is characterized.   In the overcoating step, the resin mortar composition is a mixture of a polyester resin, a vinyl ester resin, and an aggregate, and the thickness of the overcoating layer is adjusted to 10 to 40 mm along a water gradient while introducing air. The indoor floor construction method according to claim 1 or 2, wherein the construction method is an indoor floor.   The construction method for an indoor floor according to claim 3, wherein the aggregate is a dry round natural stone or artificial stone.   In the overcoating step, the resin mortar composition is obtained by kneading a polyester resin, a vinyl ester resin, and an aggregate, and a silica sand is added between the overcoating step and the surface finishing step to apply the resin. The indoor floor construction method according to claim 1, further comprising an intermediate coating step.   The indoor floor construction method according to any one of claims 1 to 5, wherein an anti-slip material is mixed into a surface of the layer coated with the resin mortar composition.   The indoor floor construction method according to any one of claims 1 to 5, wherein a fungicide is mixed into a surface of the layer to which the resin mortar composition is applied.   The indoor floor construction according to any one of claims 1 to 7, wherein an air discharge port for discharging the indoor air is disposed at the chamber entrance, and an air discharge means for discharging the air mechanically is used. Construction method.   The said ground treatment process consists of the washing | cleaning process which wash | cleans a floor surface, the existing flooring removal process which removes a part or all of the existing flooring, and the terminal processing process. Indoor floor construction method.   10. The indoor floor construction method according to claim 9, wherein the overcoating step is applied to the floor surface by a primer or by spraying an ultrafast curing high hardness urethane resin.   The indoor floor construction method according to claim 10, wherein the surface finishing step is performed by spraying aggregate.

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