Flooring, flooring manufacturing method, and floor construction method

Abstract

To provide a flooring material, a manufacturing method thereof and a floor construction method, which have high adhesion between a base material layer and a plastering material layer, have excellent durability, and do not require on-site plastering finish, thereby enabling easy construction, a manufacturing method thereof and a floor construction method. [Solution] The flooring material of the present invention has a base layer 1 and a plastering material layer 3 formed on one surface of the base layer 1, and the plastering material layer 3 is characterized by being made of a polymer cement-based material containing an elastic high molecular weight polymer, and preferably having a sealer layer between the base layer 1 and the plastering material layer 3, and / or having a clear layer formed on the plastering material layer 3.

Description

[Technical Field]

[0001] The present invention relates to a flooring material, a manufacturing method for the flooring material, and a floor construction method, and more particularly to a flooring material that has high adhesion between a base material layer and a plastering material layer, has excellent durability, and does not require on-site plastering finishing, allowing for easy construction, a manufacturing method for the flooring material, and a floor construction method. [Background technology]

[0002] BACKGROUND ART Plastering materials such as lime plaster and diatomaceous earth have been proposed as building materials for use in floors and walls (interior decoration) because of their excellent durability.

[0003] Patent Document 1 describes a plastering material as a building material used for floors and walls. This plastering material is made by containing plaster (quicklime, adhesive, stone powder, and waste) and powdered and granular materials (aggregate and clay). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-220209 Summary of the Invention [Problem to be solved by the invention]

[0005] Plastering finishes using lime plaster or the like are applied on-site, which means that the construction period on-site is long and it takes time for the work to dry after application, which impedes the progress of other construction work.

[0006] On the other hand, in tenant buildings, department stores, and offices, there is also a demand for floors with a natural texture achieved through plastering, as well as a sense of solidity and luxury. However, when only a portion of a floor is renovated using on-site plastering, other sections are affected and influenced by each other, especially during the drying process, and drying also takes time, which delays the opening of stores and other businesses.

[0007] Therefore, it is desirable to make it possible to perform plastering with simple construction methods without the need for on-site plastering. By avoiding on-site plastering, it is possible to stockpile the plaster, which does not impede the progress of other construction work on site.

[0008] Therefore, the object of the present invention is to provide a flooring material, a method for manufacturing a flooring material, and a method for constructing a floor, which have high adhesion between the base material layer and the plastering material layer, have excellent durability, and do not require on-site plastering finishing, allowing for simple construction.

[0009] Further objects of the present invention will become apparent from the following description. [Means for solving the problem]

[0010] The above problems are solved by the following inventions.

[0011] 1. a substrate layer; a plastering material layer formed on one surface of the base material layer; and The flooring material is characterized in that the plastering material layer is made of a polymer cement-based material containing an elastic high molecular weight polymer. 2. The flooring material according to item 1 above, characterized in that it has a sealer layer between the base material layer and the plaster material layer. 3. 3. The flooring material according to claim 1 or 2, characterized in that a clear layer is formed on the plaster material layer. 4. A method for manufacturing a flooring material, comprising forming a plastering material layer made of a polymer cement material containing an elastic high molecular weight polymer on one surface of a base material layer. 5. Before forming the plaster material layer, a sealer layer is formed on the base layer; 5. The method for manufacturing a flooring material according to item 4, characterized in that the plastering material layer is formed on the sealer layer. 6. 6. The method for manufacturing a flooring material according to 4 or 5 above, characterized in that a clear layer is formed on the plaster material layer. 7. A floor construction method characterized by using multiple flooring materials as described in 1 or 2 above, arranging these flooring materials on the floor surface so that there are no overlapping areas between the flooring materials, and fixing them to the floor surface. 8. A floor construction method characterized by using a plurality of flooring materials as described in 3 above, arranging these flooring materials on the floor surface so that there are no overlapping areas of the flooring materials, and fixing them to the floor surface. [Effects of the Invention]

[0012] According to the present invention, it is possible to provide a flooring material, a method for manufacturing a flooring material, and a method for constructing a floor, which have high adhesion between the base material layer and the plastering material layer, have excellent durability, and do not require on-site plastering finishing, making construction simple. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a cross-sectional view showing the configuration of a flooring material according to an embodiment of the present invention; [Figure 2] FIG. 10 is a cross-sectional view showing the configuration of a flooring material according to another embodiment of the present invention. [Figure 3] A flowchart showing a method for manufacturing a flooring material according to an embodiment of the present invention. [Figure 4] A flowchart showing the delivery of flooring materials and the floor installation method according to an embodiment of the present invention. [Figure 5] Schematic diagram showing the configuration of the slip tester used for anti-slip testing [Figure 6] Schematic diagram showing the configuration of a tripod with casters used for static load testing DETAILED DESCRIPTION OF THE INVENTION

[0014] In view of the above-mentioned prior art, the inventors have created a flooring material that uses vinyl chloride tiles as a base layer and applies a plaster finish to one side of this base layer, thereby giving it the natural texture of a plaster finish, a sense of solidity and luxury, and also providing excellent adhesion and durability of the plaster material.

[0015] Preferred embodiments of the present invention will now be described.

[0016] [Flooring composition] FIG. 1 is a cross-sectional view showing the configuration of a flooring material according to an embodiment of the present invention. As shown in FIG. 1, this flooring material has a base layer 1. The material of the base layer 1 of this flooring material is not particularly limited, and specifically, the base layer 1 is made of resin, and examples include olefin-based resin, vinyl chloride resin, polyvinyl chloride resin, recycled resin, biomass resin, etc., with vinyl chloride resin and polyvinyl chloride resin being preferred. The material constituting the base layer 1 of this embodiment contains, for example, polyvinyl chloride resin (43% by weight), calcium carbonate (50% by weight), and plasticizer (mainly DOP) (7% by weight). The thickness of this base layer 1 is, for example, 2.5 mm or 5.0 mm.

[0017] It is also preferable to emboss the surface of the base material layer 1 on which the plaster material layer 3 is formed in order to improve interlayer adhesion with the plaster material layer 3. The embossing depth is, for example, about 0.06 mm when the thickness of the base material layer 1 is 2.5 mm, and about 0.7 mm when the thickness is 5.0 mm.

[0018] A plastering material layer 3 is formed on one surface of the base material layer 1. The plastering material layer 3 is formed by applying a plastering material made of a polymer cement-based material containing an elastic high molecular weight polymer to one surface of the base material layer 1 (plastering work).

[0019] Here, the plastering material is a material that hardens by a chemical reaction with water or air, and is generally used as a material that is applied to walls, floors, etc. with a trowel before hardening. In this embodiment, the polymer cement-based material containing an elastic high molecular weight polymer that serves as the plastering material for the plastering material layer 3 includes a mixture of styrene-acrylic copolymer emulsion, alumina cement, and an acetylene-based dialcohol composition. The styrene-acrylic copolymer emulsion contributes to making the plastering material layer 3 highly elastic. The alumina cement contributes to improving the strength and hardness of the thin plastering material layer 3. The acetylene-based dialcohol composition contributes to improving compatibility and adhesion to the sealer layer and clear layer described below.

[0020] The plastering material layer 3 has elasticity, so it can follow the bending of the base material layer 1. Furthermore, by using alumina-containing cement as the plastering material, sufficient strength can be ensured even when the thickness is reduced. As such a plastering material, for example, "Uniplal ARTE (product name) manufactured by Goethe Haus GmbH" can be used. This plastering material has excellent adhesion and conformability to the base material layer 1.

[0021] In addition, other auxiliary agents may be added to the plastering material that forms the plastering material layer 3 to the extent that they do not impair the effects of the present invention, and traditional plastering materials such as lime plaster, diatomaceous earth, shirasu wall, Juraku wall, and mortar may also be added.

[0022] Furthermore, it is preferable that a coloring material is mixed into the plastering material to color the plastering material layer 3. It is also preferable that the surface of the plastering material layer 3 is textured and polished.

[0023] Next, the base material layer 1 and the plaster material layer 3 may be cut so that the outer edge shape is, for example, rectangular. In this embodiment, the outer edge shape of the base material layer 1 and the plaster material layer 3 is a square with each side being 60 cm.

[0024] FIG. 2 is a cross-sectional view showing the configuration of a flooring material according to another embodiment of the present invention. As shown in FIG. 2, the flooring material of the present invention may have other layers such as a sealer layer and a clear layer in addition to the base material layer 1 and the plastering material layer 3. A sealer layer 2 is preferably formed on the surface of the base material layer 1. The material forming the sealer layer 2 is preferably an acrylic cationic material. In this embodiment, the sealer layer 2 is a mixture of a copolymer emulsion of "alkyl alkylate, alkyl methacrylate or methacrylic acid" and "trialkoxysilyl or styrene", and an acetylenic dialcohol composition. The resin and additives in the sealer layer 2 contribute to improving compatibility and adhesion to the base material layer 1 and the plastering material layer 3. As the acrylic cationic material, for example, "GR Cation Sealer (product name) manufactured by Goethe Haus GmbH" can be used.

[0025] In this case, the plastering material layer 3 is formed on the sealer layer 2. The sealer layer 2 strengthens the adhesion between the base material layer 1 and the plastering material layer 3.

[0026] As shown in Fig. 2, it is preferable that a clear layer be formed on the surface of the plastering material layer 3. In this embodiment, the clear layer is a two-layer top coat layer consisting of an alkali-reactive clear layer (inorganic clear layer) 4 formed on the surface of the plastering material layer 3 and an alkali-reactive hard coat layer (barrier layer) 5 formed on the surface of the clear layer 4. The clear layer may be a single layer, with the clear layer 4 being replaced with an alkali-reactive hard coat layer.

[0027] The clear layer 4 is formed by applying a material containing a silicate-based protective material onto the plastering material layer 3, and this protective material reacts with the alkaline components of the plastering material layer 3 to crystallize, forming a matte protective layer. The clear layer 4 does not form a film, and improves the protective performance while making the most of the performance of the plastering material layer 3. In this embodiment, the clear layer 4 is made of an organopolysiloxane resin.

[0028] The hard coat layer 5 formed on the surface of the clear layer 4 is formed by applying an alkaline reactive material, which reacts with the alkaline component of the plastering material layer 3 to form a highly hard protective layer. In this embodiment, the hard coat layer 5 is a special silicate (an impregnated alkali-reactive silicate) and is a penetration-hardening type surface strengthening liquid. Because the hard coat layer 5 is an alkali-reactive strengthening liquid, it reacts with the alkali content of the alumina cement in the plastering material layer 3 and hardens. The clear layer 4 does not form a film when the protective layer is formed, and therefore does not inhibit the reaction of the hard coat layer 5 with the alkaline component. As the material for the hard coat layer 5, for example, a top coat for "Uniplal ARTE (trade name) manufactured by Goethe Haus AG" can be used.

[0029] The total thickness of the plastering material layer 3, clear layer 4, and hard coat layer 5 is, for example, 0.5 to 1 mm. When the thickness of the base material layer 1 is 2.5 mm, the thickness of the flooring material including the top coat layers 4 and 5 is, for example, 3.0 to 3.5 mm.

[0030] [Method for manufacturing flooring] FIG. 3 is a flowchart showing a method for manufacturing a flooring material according to an embodiment of the present invention. As shown in FIG. 3, this flooring material is manufactured in a factory, including the formation of a sealer layer 2 on a base material layer 1, the formation of a plaster material layer 3, and the formation and cutting of top coat layers 4 and 5.

[0031] (Sealer application) First, the surface of the base layer 1 is subjected to base preparation (surface leveling) (S1). At this time, the base layer 1 has a size of, for example, about 2 m×3 m. Next, an adhesive (sealer coating) is applied to the surface of the base material layer 1 to form a sealer layer 2 (S2). If the sealer layer 2 is not to be formed, the process skips S2 and proceeds to S3. The adhesive for the sealer layer 2 is preferably an acrylic cationic material, for example, "GR Cationic Sealer (trade name) (200 g / m 2This adhesive is applied evenly with a wool roller, more preferably with a medium pile wool roller. Next, the applied adhesive is allowed to dry. The drying time is 1 hour in summer (temperature above 20°C) and 2 hours or more in winter (temperature below 10°C). Next, check by touch that the adhesive is completely dry, and then move on to applying the next plastering material.

[0032] (Plastering material application) Next, a plastering material layer 3 is formed on the sealer layer 2 (S3). The plastering material constituting the plastering material layer 3 is preferably a polymer cement-based material containing an elastic high molecular weight polymer, for example, "Unipral ARTE (trade name) (1.4 kg / m 2 ) can be used. This plastering material is made by gradually adding "Unipral ARTE Powder" (alumina cement (CAS RN: 65997-16-2) (content 10-20% by weight), crystalline silica (quartz) (CAS RN: 14808-60-7) (content 20-30% by weight)) to resin materials (styrene-acrylic copolymer (content 30-40% by weight), water (content 50-60% by weight), propylene glycol (CAS RN: 57-55-6) (content <1% by weight)) and kneading them using a mixer or similar. Furthermore, colorants can be mixed into this plastering material.

[0033] The plastering material is applied by rubbing it in with sufficient pressure from the trowel to create a texture. The thickness of the application is, for example, about 1.5 mm.

[0034] The plastering material layer 3 may be formed in two layers by repeating the application of the plastering material twice (S3, S4).

[0035] Next, the coating thickness was calculated by weight (1.4 kg / m 2 ) and visually check for chips and unpainted areas, and if there are no problems, the plastering material is cured and hardened (S5). It takes about 24 hours for it to harden completely. Once the plastering material has completely hardened, the surface is sanded. Sanding is carried out on the entire surface using, for example, a disc sander (#240).

[0036] (Top coat application) An alkaline reactive material is applied onto the plaster material layer 3 of each flooring material to form a top coat layer, a clear layer 4 and a hard coat layer 5 (S5). If no top coat layer is to be formed, the process skips S5 and proceeds to S6. A material containing a silicic acid-based protective material can be used as the material for the clear layer 4. This protective material reacts with the alkaline component of the plastering material layer 3 to crystallize, forming a matte protective layer.

[0037] An alkali-reactive material can be used as the material for the hard coat layer 5. The alkali-reactive material reacts with the alkali component of the plastering material layer 3 to form a highly hard protective layer. Note that the clear layer 4 does not form a film when forming the protective layer, and therefore does not inhibit the reaction of the hard coat layer 5 with the alkali component.

[0038] The material of the top coat layers 4 and 5 is, for example, "Uniplal ARTE Top Coat (product name) (180 g / m 2 ) can be used. The topcoat layers 4, 5 are formed by applying two even coats of material using a wool roller, more preferably a short-pile wool roller. It is recommended that there be a 6 hour interval between the first and second applications.

[0039] The total thickness of the plastering material layer 3, clear layer 4, and hard coat layer 5 is, for example, 0.5 to 2.0 mm. When the thickness of the base material layer 1 is 2.5 mm, the thickness of the flooring material including the top coat layers 4 and 5 is, for example, 3.0 to 4.5 mm.

[0040] (Dry) The top coat layers 4 and 5 are dried thoroughly, and it is confirmed by touch that they are completely dry (S6).

[0041] [Delivery of flooring materials and floor installation method] FIG. 4 is a flowchart showing a method for delivering flooring materials and installing a floor according to an embodiment of the present invention.

[0042] (delivery of materials) The condition of the edges (cut surfaces) is visually checked, and if there are no problems, the flooring is packaged (S8) as shown in Figure 4. The packaged flooring is transported (S9) and delivered to the warehouse (S10). Then, the product is delivered to the site where the floor will be installed (S11).

[0043] (adhesive application) To install a floor using this flooring material, first, the floor surface (installation surface) is cleaned (S12) and the base is prepared (S13). Next, adhesive is applied to the floor surface (S14).

[0044] (Flooring construction) In the flooring installation, multiple flooring materials are placed on the floor surface without gaps (places where no flooring material exists) or overlapping areas (overlaps), and are fixed to the floor surface with adhesive applied to the floor surface (S15). Once the adhesive has been applied to the floor surface, the surface is cleaned (S16) and the floor is complete. In addition, if there are gaps between the flooring materials, for example, when the outer edge shape of the flooring materials is not rectangular, these gaps may be filled with a material other than the flooring materials.

[0045] As described above, the flooring material and floor construction method of the present invention provide high adhesion between the base material and the plastering material, have excellent durability, and do not require on-site plastering finishing, making construction easy. This will enable tenant buildings, department stores, and offices to be opened early on by installing flooring materials that have the natural texture of a plaster finish and a sense of solidity and luxury. [Example]

[0046] In accordance with the above embodiment, flooring materials (1) and (2) were prepared, each consisting of a base material layer 1, a sealer layer 2, a plastering material layer 3, a clear layer 4, and a hard coat layer 5, as shown in Figure 2, and were checked to see whether they met the standards in accordance with JIS standards (such as "JIS A 5705") as follows. Conventionally, there have been no flooring materials in which a plastering material is applied to a base layer 1 made of polyvinyl chloride resin or the like, and therefore no standards exist for such flooring materials. The inventors conducted the following tests to confirm that the flooring material according to the present invention satisfies the standards for floor tiles made of polyvinyl chloride resin or the like and thus has performance equivalent to that of conventional flooring materials.

[0047] [Flooring (1)] (FLT: Floor tiles) The thickness of the base material layer 1 was 2.5 mm, and the total thickness of the base material layer 1, sealer layer 2, plastering material layer 3, clear layer 4, and hard coat layer 5 was 3.18 mm. The base layer 1 was made of 43% by weight of polyvinyl chloride resin, 50% by weight of calcium carbonate, and 7% by weight of plasticizer (DOP). The sealer layer 2 was made of a mixture of a copolymer emulsion of alkyl alkylate and trialkoxysilyl, and an acetylene-based dialcohol composition. The plastering material layer 3 was made of "Uniplal ARTE (trade name)" (manufactured by Goethe Haus). The clear layer 4 was made of organopolysiloxane resin. The hard coat layer 5 was made of "Uniplal ARTE Top Coat (trade name)" (manufactured by Goethe Haus).

[0048] [Flooring (2)] (OT: Office tiles) The flooring material was the same as flooring material (1), except that the thickness of base material layer 1 was 5.0 mm, and the total thickness of base material layer 1, sealer layer 2, plastering material layer 3, clear layer 4, and hard coat layer 5 was 5.68 mm.

[0049] [Test (1) Weather resistance test] Test method standards, etc. "JIS K 7350-2" (Plastics - Exposure test method using laboratory light source - Method B) ·Measuring equipment Xenon arc weathering accelerated tester (xenon weather meter: Atlas Ci4000) Testing Method Using a xenon arc accelerated weather resistance tester, light was irradiated onto the top surface of the flooring material of the floor structure for 1,400 hours. The top surface of the flooring material was visually observed, and its condition was evaluated according to the following criteria. The 1,400 hours of light exposure using the xenon arc accelerated weathering tester used in the weathering test is considered to be the same amount of exposure as if the product were left outdoors for a year. Evaluation criteria ○: No discoloration △: Slight discoloration was observed ×: Discoloration was noticeable Test results: Flooring (1):○ Flooring (2):○

[0050] [Test (2) Antifouling performance test] Test method standards, etc. "JIS K 3920" (Floor polish test method "Heel mark resistance") ·Measuring equipment Snell capsule testing machine for heel mark resistance Testing Method Using a Snell capsule heel mark resistance tester, flooring material (1) and (2) test samples were placed inside the tester. Six standard black rubber blocks containing carbon black were then placed inside the tester, which was then rotated at a speed of 50 revolutions per minute. After 30,000 revolutions, the surface of the test sample was wiped vigorously with a damp, tightly wrung-out cloth, and the degree of rubber contamination on the surface was evaluated according to the following evaluation criteria. Evaluation criteria ○: There is almost no rubber contamination, and the rubber can be wiped off when wiped with water. △: The rubber is contaminated, but can be wiped off with water. ×: The rubber was heavily contaminated and could not be wiped off even with water. Test results: Flooring (1):○ Flooring (2):○

[0051] [Test (3) Scratch Resistance Test] Test method standards, etc. Scratch resistance test established by the inventor ·Measuring equipment Friction tester type II (Gakushin type) specified in "JIS L 0849" Testing Method Three test pieces measuring 30mm x 200mm were taken from the center of floor materials (1) and (2) and measured using a friction tester Type II (Gakushin type). The cotton cloth used for friction was a #100 count emery cloth (GBS-100 / TRUSCO Nakayama, or FUJI STAR / Mitsui Rikagaku) ​​cut to a size of 15mm x 15mm and attached to the cotton cloth with double-sided tape. The load applied to the test specimen was the specified 1.96N, and the test specimen was moved back and forth five times at a speed of 30 times per minute over a travel distance of 120mm. The degree of damage to the surface of the test piece is judged based on the color difference between the damage and the test piece using a gray scale for discoloration. Evaluation criteria Grayscale level 3 or higher according to "JIS L 0804" Test results: Flooring (1) Five round trips (quality standard) were made and the result was grade 4. Ten round trips (twice the quality standard) were performed and the result was grade 3-4. Flooring (2) Five round trips (quality standard) were made and the result was grade 4. Ten round trips (twice the quality standard) were performed and the result was grade 3-4.

[0052] [Test (4) Anti-slip test] Test method standards, etc. "JIS A 1454" (Test method for polymer-based floor coverings "Slipperiness test") ·Measuring equipment Slip tester (OY·PSM: Slip tester developed by Tokyo Institute of Technology) Testing Method The test is carried out using the OY-PULL method, which is said to be the test method most closely matching actual walking, and involves attaching the sole of the footwear to be used on a sliding piece, placing a load of 80 kgf on it, and pulling it at an angle of 18 degrees to measure the maximum tensile load. This value is then divided by the applied load (80 kg) to obtain the CSR value, which is used as an index for evaluating slip resistance. Evaluation criteria Comply with the new Barrier-Free Law and have a CSR of 0.4 or higher Test results: Flooring (1) Slipper: Men's shoes with hard soles Surface condition: Cleaned CSR=0.806 Slide: Men's shoes with hard soles Surface condition: Water + dust sprinkled CSR=0.528 Flooring (2) Slipper: Men's shoes with hard soles Surface condition: Cleaned CSR=0.782 Slide: Men's shoes with hard soles Surface condition: Water + dust sprinkled CSR=0.501 As shown in the figures above, both flooring materials (1) and (2) had high CSR values ​​and were confirmed to have high slip resistance.

[0053] [Test (5) Static Load Test] Test method standards, etc. Static load test established by the inventor ·Measuring equipment Caster tripod (made by the inventor) Testing Method As shown in Figure 6, a tester with casters attached to three places was placed on a test specimen placed on a flat steel plate so that the load was evenly distributed. A weight was placed on the tester to apply a load of 90 kg, and the test specimen was left to stand for 48 hours. After the test specimen was left to stand, the load was removed and the amount of denting of the specimen was measured. Evaluation criteria Recovery rate must not fall below 90% two weeks after weight removal Test results: Flooring (1) As shown in Table 1 below, it was confirmed that the recovery rate met the criteria. [Table 1]

[0054] Furthermore, since flooring material (2) differs from flooring material (1) only in the thickness of the base material layer 1, it is assumed that the amount of dent and recovery rate in the static load test will be similar to the results of flooring material (1).

[0055] [Test (6) Wax Adhesion] Test method standards, etc. "JIS K 3920" (Floor polish test method "adhesion") Testing Method The following acrylic resin-based water-based wax was evenly applied to the surface of the flooring decorative sheet, and after 24 hours of curing, the surface was visually inspected for any loss of gloss or streaks. Cellophane adhesive tape was then applied, and one end of the adhesive tape was held perpendicular to the surface of the flooring material and quickly peeled off. The area of ​​the wax that did not peel off from the flooring material was evaluated as a percentage. Acrylic resin water-based wax (manufactured by C.B.S. Co., Ltd.) (Product name) Gloss King Plus C Clear Star Elex Endurance King Plus C Antibacterial Alcoat Toughness SU shield Evaluation criteria 1: 100% no peeling observed 2: Less than 50% peeled off 3: Peeled off by 50% or more 4: Completely peeled off Test results: As shown in Table 2 below, all of the acrylic resin-based water-based waxes were rated "1," confirming that no peeling occurred. [Table 2]

[0056] As a result of the above tests, it was confirmed that the flooring material according to the present invention meets the standards for vinyl chloride tiles. This confirmed that the flooring material according to the present invention, which includes a plastering material layer, has performance equivalent to that of conventional flooring materials such as vinyl chloride tiles. [Explanation of symbols]

[0057] 1 Base material layer 2. Sheela Layer 3 Plastering material layer 4 Clear layer 5 Hard coat layer

Claims

1. a substrate layer; a plastering material layer formed on one surface of the base material layer; and The flooring material is characterized in that the plastering material layer is made of a polymer cement-based material containing an elastic high molecular weight polymer.

2. 2. The flooring material according to claim 1, further comprising a sealer layer between the base material layer and the plaster material layer.

3. 3. The flooring material according to claim 1, wherein a clear layer is formed on the plaster material layer.

4. A method for manufacturing a flooring material, comprising forming a plastering material layer made of a polymer cement material containing an elastic high molecular weight polymer on one surface of a base material layer.

5. Before forming the plaster material layer, a sealer layer is formed on the base layer; 5. The method for manufacturing a flooring material according to claim 4, wherein the plastering material layer is formed on the sealer layer.

6. 6. The method for manufacturing a flooring material according to claim 4, further comprising forming a clear layer on the plaster material layer.

7. A floor construction method comprising using a plurality of flooring materials according to claim 1 or 2, arranging the flooring materials on a floor surface so that no flooring materials overlap each other, and fixing the flooring materials to the floor surface.

8. A floor construction method comprising using a plurality of flooring materials according to claim 3, arranging the flooring materials on a floor surface so that no flooring materials overlap each other, and fixing the flooring materials to the floor surface.

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