Construction method and construction structure of baseboard for concrete floor

Abstract

To perform accurate positioning even in a place such as a concrete floor where it is difficult to set a position in a height direction due to a volume change, contraction or the like, and to prevent dew condensation, mold, or rust from occurring in the vicinity of a baseboard or between a heat insulating panel, a fireproof panel or the like and the baseboard.SOLUTION: A baseboard 1 is arranged on a wall surface Q1 and lower sides of partitions by using a baseboard made of non-combustible and flame-retardant materials filled with a concrete-based material using cement and siliceous powder as main raw materials from an outer side to an inner side 1s, the adjustment with a floor surface P is performed by adjusting a bottom surface part 1t of the baseboard 1 by cutting or polishing, and / or by interposing a spacer Sp1 or a sheet material C in a gap between the bottom surface part 1t of the baseboard 1 and the floor surface P, or by calking work using a calking agent K.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a method and structure for installing baseboards on concrete floors arranged on the lower side of walls of buildings with concrete floors, such as cold storage warehouses and freezer / refrigerated warehouses, and partitions that separate the rooms. [Background technology]

[0002] Generally, baseboards are placed at the intersections where the bottom of the wall intersects with the floor in semi-outdoor underground parking lots, fish markets, food factories, clean rooms, medical institutions, etc. Usually, in such places, rain may enter the intersections or a large amount of liquids or water such as cleaning fluid may be used, causing liquids to flow into the intersections where the bottom of the wall intersects with the floor, corroding the concrete. Also, in clean rooms and medical institutions, dust may get into the intersections, causing the hygiene of the room to deteriorate. Therefore, by placing baseboards, it is possible to prevent dust, water, and other liquids from getting into the intersections, making them dust-proof and airtight, and keeping the intersections hygienic. In addition, facilities such as freezer warehouses, refrigerated warehouses, and cold storage warehouses require high-performance insulation work to effectively block the difference between the outside air temperature and the room temperature. If the insulation performance is insufficient, the operating rate of the freezer will increase, increasing running costs, and if the construction method is not easy to install, the construction period will be longer and the construction costs will rise. Therefore, some buildings have concrete floors such as cold storage warehouses and freezer / refrigerated warehouses, and the lower part of the partitions that separate the rooms, and insulation panels, fireproof panels, and fireproof panels are placed on the walls of buildings with concrete floors such as cold storage warehouses and freezer / refrigerated warehouses. However, although they have poor insulation performance due to their hygroscopicity, they have the advantage of being easy to install. On the other hand, the floors of cold storage warehouses and other buildings are usually made of concrete floors made mainly of cement materials. However, concrete floors have the disadvantage of being limited in height and lateral application due to shrinkage, and there is the issue that it is difficult to adjust the height direction and uneven surfaces.

[0003] Furthermore, as prior art, there is a baseboard placed at the intersection where the part exposed to the front has an R-shaped surface, as disclosed below. Patent documents 5 and 6 disclose a baseboard attached to a wall surface along with heat insulating panels, fireproof panels, and fireproof panels. Patent Document 1 relates to a manufacturing method for an R baseboard used at the bottom where a wall portion and a floor portion intersect, and to the R baseboard, and the R baseboard main body portion 3 is a long material manufactured by bending a stainless steel plate into a cross section of a roughly J-shaped shape. Filling material 15 is filled between the R baseboard main body portion 3 and the wall portion W and floor portion F, making it possible to cover the gaps between the R baseboard main body portion 3 and the wall portion W and floor portion F with filling material 15 in accordance with the shape, without any gaps, thereby preventing splashes of water, food, etc. from entering between the R baseboard 1 and the wall portion W and floor portion F. Patent Document 2 relates to baseboards, sheets with baseboards, and decorative structures for floors and walls, which are used at the intersections where the bottom of a wall surface intersects with the floor, and aims to provide a baseboard that has excellent heat resistance, impact resistance, frost resistance, and water resistance, which are various characteristics required of a baseboard, and that can be suitably used as a non-combustible material for fire-resistant or semi-fire-resistant buildings. The baseboard is attached to the intersections where the bottom of a wall surface intersects with the floor, and is for bonding or painting a sheet used as a floor material from above. The baseboard contains cement, siliceous powder, aggregate, and fiber as main components, and is characterized by a strength attenuation rate of 10% or less, a thermal expansion coefficient of 1.0 to 15.0 x 10-6 / °C, an impact strength of 0.8 to 25.0 kJ / m2, and a thermal conductivity of 0.3 W / mK or less. Patent Document 3 relates to baseboards used at the intersections where the bottom of a wall surface intersects with the floor, and aims to provide a baseboard that is capable of absorbing the impact of a collision even in the event of a collision with the bed of a cart or the like, thereby preventing the surface of the wall surface from being chipped or damaged. The baseboard 70 is attached to the intersection where the bottom of a wall surface Q intersects with the floor surface P, and is used to adhere or paint a sheet 100 used as a floor surface material from above. The baseboard 70 is characterized in that it comprises a baseboard main body 71 located at the bottom and having a curved front, and a protective part 72 for absorbing the impact applied when a cart or the like collides with the wall surface Q, and the protective part 72 is connected upward from the baseboard main body 71. Patent Document 4 describes the problem as "preventing gaps and steps caused by floor paint etc. from occurring between the finishing floor material and baseboards, and improving adhesion with the floor coating", and discloses as a solution the following: "A back portion 1h that abuts against the wall surface, a flat upper portion u1 provided at the upper front portion, a curved portion 1m that is an R-shaped curved surface provided at the lower front portion, a bottom portion 12 that abuts against the floor surface, and a downward protrusion 17 that protrudes from the lower end side of the curved portion 1m, and the downward protrusion 17 is provided with a paint stopping recess 18 that is a depression for stopping the floor paint, and when applying floor paint R, the floor paint R is placed in the paint stopping recess, and floor paint R (R1, R2) is applied above the height of the downward protrusion 17." [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2006-177035 A [Patent Document 2] JP 2018-25090 A [Patent Document 3] JP 2018-204406 A [Patent Document 4] Patent Publication No. 2022-26102 [Patent Document 5] JP 2014-105526 A [Patent Document 6] Patent Publication No. 2021-31851 DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0005] When installing baseboards on concrete floors in cold storage warehouses and refrigerated warehouses, it is necessary to arrange the baseboards while considering the volumetric changes of concrete (temperature shrinkage, drying shrinkage, self-shrinkage, and response to the cooling temperature of the cold storage warehouse). However, it has been difficult to arrange the baseboards while accurately considering the shrinkage of concrete. In particular, when pouring the concrete floor of a cold storage warehouse or refrigerated warehouse, it is necessary to consider the shrinkage toward the lower side (ground side) and the response to the center of the room, and if the shrinkage of the floor paint applied on top of the concrete floor is not taken into consideration, cracks and damage will occur in the floor paint, resulting in poor application of the floor paint and making it impossible to apply a beautiful floor paint or decorative paint to the baseboard. When installing a partition that divides a room on a concrete floor (when pouring a concrete floor again in a specified area of ​​the room), difficult adjustments will be required to accommodate the volumetric changes of the concrete floor (shrinkage, etc.). In addition, in some buildings with concrete floors, such as cold storage warehouses and freezer / refrigerated warehouses, heat insulating panels, fireproof panels, and fire-resistant panels are arranged on the lower end of the walls or partitions that separate the rooms (there are some where heat insulating panels Q2 for height adjustment are arranged at the lowest end of the heat insulating panels, etc.: height adjustment bolts N and spacers Sp are arranged in Figs. 13, 18, 24, etc. of Patent Document 2). However, there was a problem that it was difficult to adjust the height of the baseboard in response to this height adjustment or adjustment of uneven surfaces (when the floor surface is concrete). In addition, when baseboards are installed in combination with heat insulating panels, fireproof panels, and fireproof panels, condensation may occur or mold or rust may occur depending on the material (synthetic resin or metal). In addition, metal baseboards have durability problems such as rust and corrosion, so they are not suitable for places where a large amount of liquids such as cleaning solutions or water is used. In food factories, high-temperature, high-pressure water is sprayed for disinfection, so resin or metal baseboards are not suitable. For example, in the case of hollow baseboards, water or the like can get in through the gaps at the intersections between the wall and floor, causing mold and bacteria to grow, resulting in rotting and a loss of strength. In addition, in the past, when decorative paint or floor paint was applied to the front part of a baseboard, it was difficult to apply the decorative paint evenly when it was placed along the wall surface or partition, and while floor paint was sometimes applied to cover the entire baseboard, it was difficult to apply it neatly with a uniform thickness, making it a job that required skill. Furthermore, when fixing baseboards with adhesive, the adhesive may be applied all over the side walls and bottom surface, but applying it all over the surface can actually make it difficult to improve positioning accuracy, and there is also the problem that a clean floor or side wall (wall surface) cannot be created between the adhesive and caulking agent, despite the large amount of adhesive used (it is preferable to use as little adhesive, caulking agent, or sealant as possible).

[0006] Therefore, the object of the present invention is to provide a method and structure for installing baseboards on concrete floors which allows accurate positioning even when the concrete floor changes in volume (shrinkage, etc.), thereby enabling floor paint and decorative paint to be applied neatly, and which prevents condensation, mold, and rust that may occur near the baseboard or between the baseboard and an insulating panel, fireproof panel, etc. [Means for solving the problem]

[0007] The present invention relates to a method of installing baseboards on concrete floors, in which the baseboards are made from non-flammable and fire-retardant concrete-based materials whose main ingredients are cement and silicate powder from the outside to the inside, and are placed on the lower side of the wall surface or partition, and the gap between the bottom of the baseboard and the floor surface and the height direction position of the baseboard are adjusted by cutting or grinding the bottom of the baseboard and / or by inserting a spacer or sheet material into the gap between the bottom of the baseboard and the concrete floor, or by filling the gap using a caulking agent or sealant. Here, cutting or grinding the bottom and side parts of the baseboard is extremely effective not only for accurate positioning (including positioning using spacers, etc.), but also for preventing condensation, mold, and rust between the wall surface, partition, and the heat insulating panel, fireproof panel, or fireproof panel, and inside the baseboard. In addition, when a decorative paint is applied to the baseboard in advance, as described below, this process is also necessary to remove the excess decorative paint (when the decorative paint is applied to the bottom part of the baseboard and is to be removed, etc.). The heat insulating panel, fireproof panel, or fireproof panel is a conventional one made of metal or synthetic resin, and the heat insulating panel, fireproof panel, or fireproof panel having height adjustment means arranged at the lowest end of the wall surface, etc., can be accommodated by the gap adjustment and height adjustment, even if a height adjustment bolt N or spacer Sp3 is provided. According to the present invention, the baseboard is made of a non-combustible and flame-retardant concrete-based material made mainly of cement and silicate powder from the outside to the inside, and therefore has high heat insulation, waterproofing, impact resistance, and chemical resistance, and can suppress the occurrence of condensation, mold, and rust inside the baseboard. Also, when insulating panels or the like are arranged on the walls of buildings with concrete floors such as the cold storage warehouse and the freezer / refrigerated warehouse, or on the lower side of partitions separating the rooms, construction can be performed that can suppress the occurrence of condensation, mold, and rust between the baseboard and the insulating panels or the like (condensation can be reduced between the concrete baseboard of the present invention and metal panels or foam panels). According to the present invention, the gap between the bottom of the baseboard and the floor and the height of the baseboard are adjusted by cutting or grinding the bottom of the baseboard and / or by inserting a spacer or sheet material between the bottom of the baseboard and the concrete floor, or by filling the gap with a caulking agent or sealant, and even if the concrete floor changes in volume (shrinkage, etc.), accurate positioning is possible, and the concrete materials can be joined with high precision. Therefore, when the floor coating is applied, the floor coating is prevented from peeling off or being damaged, and the floor coating is finished as a beautiful coating.

[0008] When pouring concrete in cold storage warehouses and refrigerated warehouses (concrete is often poured when the building is constructed, but there are also cases where concrete pouring is redone after a certain period of time has passed since construction), the volume change and shrinkage of the concrete are large, so there is a high need to adjust them by using the spacers, sheet materials, and caulking agents. However, when pouring concrete for roads and bridges, it is necessary to consider complex factors such as large volume changes (shrinkage, etc.) and their directionality, but for floors of cold storage warehouses, the volume of the concrete floor is limited, so it is necessary to consider the gap between the bottom of the baseboard and the floor, the change in height (the descent of the concrete floor) Y1, and the movement toward the center of the room X1 (see Figures 10(b) and 11(b)). When pouring the concrete floor in the case of manufacturing a building with a concrete floor, the movement due to shrinkage (downward Y direction) and the direction toward the center of the room (X2 direction) are large. According to the present invention, the baseboards are made of the same material as the concrete floors of cold storage warehouses, etc., and are synchronized and uniform in terms of volumetric changes and shrinkage of the concrete (there is no difficulty in adjusting for different materials when synthetic resin or metal baseboards are used), and the present invention allows for adjustments while allowing for changes such as shrinkage that are difficult to predict, making simple and highly accurate adjustments possible. The present invention is characterized in that a first application step is carried out to apply the floor coating paint to the concrete floor, the application state of the floor coating paint due to volume changes (shrinkage, etc.) of the concrete floor is checked, and then the gap between the bottom part of the baseboard and the concrete floor and the vertical position of the baseboard are adjusted, and then a second application step is carried out to apply the floor coating paint to the baseboard. According to the present invention, when pouring a concrete floor, it is necessary to check the application state of the floor coating paint due to the volume change (shrinkage, etc.) of the concrete floor. For example, on the wall surface or partition side of a building or room, it is necessary to check the application state (unevenness) of the floor coating paint due to the volume change (shrinkage, etc.) of the concrete floor to check whether peeling or damage has occurred in the application state of the floor coating paint. However, if the joining of the baseboard and the concrete floor is performed too early, the application of the decorative paint or floor coating paint is likely to peel off or be damaged. In this way, the inventors of the present application have solved the technical problem by the above-mentioned method.

[0009] The present invention is also characterized in that the gap between the bottom part of the baseboard and the floor surface and the height direction position of the baseboard are adjusted without using adhesive at the adjustment position, but adhesive is interposed between the bottom part of the baseboard and the concrete floor at locations other than the adjustment position after the adjustment. The joining of the baseboard to the floor surface by adhesive is preferably at a position of the center of gravity where the baseboard is highly stable. In other words, the present invention is characterized in that the gap and height direction adjustment between the baseboard and the concrete floor are performed at the tip side of the front part of the baseboard, and the joining position of the baseboard and the concrete floor by adhesive is the wall side bottom where the center of the interior of the baseboard or the center of gravity is located. The baseboard has a different density on the surface side and at the center or center of gravity, and the decorative paint or floor coating paint is applied to the front side of the baseboard in advance, so that it penetrates the surface side of the baseboard but not the interior side. After adjusting the gap and adjusting the height, the baseboard is joined to the concrete floor and to the wall or partition with an adhesive. According to the present invention, the position where the adhesive is applied is different from the height position of the baseboard, so that accurate positioning in the height direction can be achieved. That is, it is difficult to design considering the thickness of the adhesive, but it is even more difficult in a position where the volume changes, such as a concrete floor. There is also the advantage that the amount of adhesive used can be reduced.

[0010] It is known that the volume of a concrete floor changes due to expansion, contraction, and creep. Expansion is expansion due to heat of hydration and expansion due to temperature changes such as solar radiation and air temperature, while contraction is shrinkage due to temperature drop, drying shrinkage, and autogenous shrinkage. Creep is an increase in strain due to continuous load, which can cause cracks. When installing baseboards on concrete floors, if the floor surface is concrete, cracks can occur due to these influences, but when applying floor paint or adhesive to the floor surface, damage to the floor paint (cracking, peeling, etc.) can become a construction problem (see Figure 10(b) and Figure 11(b)). However, in the case of buildings with concrete floors such as cold storage warehouses and freezer / refrigerated warehouses, the shrinkage direction that must be considered in practice is limited to a certain area within the building (this is not a large-scale construction such as a road or bridge), so it is necessary to fully consider the shrinkage (downward shrinkage Y1) within the certain area of ​​the concrete floor (area of ​​the building or inside the room) and the correspondence to the center of the room (X1 direction: shrinkage at the center of the room) (arrows in the drawing indicate these shrinkage directions and magnitudes.) The inventors provide (1) a method of installing baseboards for concrete floors that takes into account shrinkage, etc. that occurs during pouring to create the concrete floor surface, and (2) highly accurate installation of baseboards in cases where shrinkage, etc. occurs due to temperature control by the cooling mechanism of the cold storage warehouse after the concrete floor is completed. In other words, when decorative paint is applied in advance to the baseboard described below, as a means for removing the excess decorative paint, the baseboard is made of a non-flammable and fire-retardant concrete-based material made primarily of cement and silicate powder from the outside to the inside, and is positioned on the lower side of the wall or partition, and the gap between the bottom of the baseboard and the floor surface and the height direction of the baseboard are adjusted by cutting or grinding the bottom of the baseboard, and / or the gap between the baseboard and the concrete floor and the height direction positioning of the baseboard are adjusted using a spacer, sheet material or caulking agent, and then the baseboard is joined with an adhesive at a position other than the adjusted position after adjusting the gap and adjusting the height direction.This is a construction structure for baseboards on concrete floors. According to the present invention, the baseboard is made of a concrete-based material with a high density, so that it can be constructed to have good insulation properties and to prevent condensation. In addition, the surface side can be cut and polished to suit the work site, and decorative paint and floor coating paint can be soaked in and applied integrally with the floor coating paint. Furthermore, according to the present invention, by using a decorative paint that has already been applied to the curved or R-shaped portion on the front side of the baseboard, the curved or R-shaped portion can be uniformly and neatly applied. The pre-application of floor coating material on the front side of the baseboard is characterized in that the floor coating material is applied from the lower end of the baseboard to the bottom portion, and / or an adhesive, caulking agent, or sealant is applied from the upper end of the curved portion to the wall or partition. Here, at least on the bottom side of the front part of the baseboard, a double structure of application of the floor coating material and the decorative paint can be achieved. According to the present invention, the floor coating paint is applied to at least the bottom surface side of the front portion (curved portion / R-shaped portion) of the baseboard, and due to the impregnation structure on the surface side of the baseboard, the paint is strong and can be applied without misalignment, allowing for neat application without damage, cracking or peeling of the floor coating paint. Here, in this specification, the terms "decorative paint" and "floor coating paint" are used to distinguish between the two, but the same paint may be used for both, or the same paint may be applied in different terms, with the first layer being a decorative paint and the second layer being a floor coating paint. Effect of the Invention

[0011] According to the present invention, the baseboard is made of a non-combustible and flame-retardant material filled from the outside to the inside with a concrete-based material made mainly of cement and silicate powder, and therefore, unlike conventional baseboards with an internal cavity, water, floor paint, etc. do not penetrate into the baseboard, suppressing the occurrence of condensation, mold, and rust, and preventing a decrease in the heat insulating effect due to corrosion, etc. Also, in adjusting the gap between the baseboard and the floor surface and the height direction (adjusting the uneven surface of the concrete floor), simple and highly accurate adjustments can be made by cutting or grinding the bottom part of the baseboard, and further, even in the case of a relatively large volume change (shrinkage, etc.) in the concrete floor, highly accurate adjustments in the height direction can be made by using spacers, sheet materials, and caulking agents. By applying a decorative paint to the front part of the baseboard beforehand, or by allowing the surface side of the baseboard to be saturated with decorative paint or floor coating paint and then applying floor coating paint or adhesive on top of that, it is possible to apply (construct) the floor coating paint or decorative paint neatly without damaging it or causing cracks or peeling, and it is possible to improve the insulation effect, impact resistance, chemical resistance, etc. [Brief description of the drawings]

[0012] [Figure 1] FIG. 2 is a process explanatory diagram showing a baseboard and an example of installation according to the first embodiment of the present invention. [Diagram 2] FIG. 11 is a process explanatory diagram showing a baseboard and an installation example according to the second embodiment of the present invention. [Diagram 3] FIG. 4 is a schematic diagram showing an application example of the baseboard of the first embodiment. [Figure 4] FIG. 2 is a schematic diagram illustrating the surface side and internal structure of the baseboard according to the embodiment. [Diagram 5] FIG. 11 is an explanatory diagram illustrating a method of installing baseboards on a concrete floor according to the above embodiment. [Figure 6] FIG. 11 is an explanatory diagram illustrating a method of installing baseboards on a concrete floor according to the above embodiment. [Figure 7] FIG. 2 is a schematic diagram illustrating the surface side and internal structure of the baseboard according to the embodiment. [Figure 8] FIG. 1 is a schematic explanatory diagram illustrating an example in which the present invention is applied to connecting baseboards in the lateral direction. [Figure 9] 11 is a photograph (embodiment) showing an example of application of the baseboard of each of the above embodiments in a room where concrete is poured. [Figure 10] FIG. 1 is a diagram showing an example of the application of the baseboard installation method of the present invention to the wall surface of a building. [Figure 11] FIG. 13 is a diagram showing an example in which the baseboard installation method of the present invention is applied to a partition that divides a room. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0014] (Structure of Baseboard 1) 1 to 7 are diagrams showing a baseboard according to a first embodiment of the present invention and its application example. The baseboard 1 of this embodiment is a member that is attached to the intersection of the bottom of a wall surface Q and the floor surface P in semi-outdoor underground parking lots, fish markets, food factories, clean rooms, medical institutions, etc., to keep the area around the intersection dust-proof and airtight to keep it sanitary, and to protect the wall when an object collides with a wall surface that is distant from the floor surface, such as the loading platform of a cart. Furthermore, in facilities such as freezer warehouses, refrigerated warehouses, and cold storage warehouses, the baseboard 1 is indispensable for high-performance insulation work to effectively block the difference between the outside air temperature and the room temperature.

[0015] The baseboard 1 according to the embodiment of the invention is mainly composed of cement and siliceous powder, and further contains aggregate and fiber, and is formed as a non-combustible and flame-retardant material. By molding and hardening a mixture containing cement, siliceous powder, aggregate and fiber, a baseboard is provided which has excellent heat resistance, impact resistance, frost resistance and water resistance, and can be suitably used as a non-combustible material for fire-resistant or semi-fire-resistant buildings. The baseboard is made by mixing the above-mentioned components in an appropriate ratio (mixing process), adding an appropriate amount of water and kneading (kneading process). The kneaded mixture is fed to an extrusion molding machine and extruded to obtain an extrusion molded body (extrusion molding process). The extrusion molded body is then cured and dried to obtain the baseboard (curing and drying process). The baseboard 1 may be a baseboard 11 that can be separated in the vertical direction (Fig. 6(b)). In other words, the baseboard 11 can be adjusted in height by connecting it upward. The height of the lower side of the stacked baseboard 11 is made higher than the height of the lowest insulation panel or fireproof / fireproof panel Q2, making it stable.

[0016] The baseboard 1, 11 is placed on the underside of a wall Q1 of a building or a partition that divides a room. FIG. 3(a) shows an application to a wall Q1 made of plasterboard and wall finishing material, and the baseboard 1 is fixed to the wall Q1 with an adhesive. The wall finishing material may be, but is not limited to, a decorative calcium silicate board or a stainless steel plate. The bottom side 1t and back side 1h of the baseboard 1 are filled with caulking K at predetermined locations. The baseboard 1 is placed on a floor P, and is coated on the floor P with floor coating paint R. The floor coating paint R is applied so as to cover the entire periphery of the baseboard 1, but the lower end may also be coated on the tip side of the curved portion 1m together with the floor P. Fig. 3(b) shows an example in which a heat insulating panel, fireproof panel, or fireproof panel Q2 for adjusting the height is arranged on the wall surface Q1 or the bottom surface of the partition, and the height adjustment part N in the center is used to adjust the height and unevenness. The baseboard 1 has its bottom part 1t cut or polished to adjust the height of the heat insulating panel, fireproof panel, or fireproof panel Q2. Spacers Sp are arranged around the heat insulating panel Q2 for adjusting the height, and it is possible to use spacers Sp made of synthetic resin or metal, or filled with a concrete-based material whose main ingredients are cement and silicate powder, which has non-combustible and flame-retardant properties (Figs. 6(a)(b)).

[0017] The baseboard 1 is mainly composed of cement and siliceous powder, and further contains aggregate and fiber, and is formed as a non-combustible and flame-retardant material. Examples of cement include various portland cements such as ordinary, early-strength, heat-of-induction, low-heat, and sulfate-resistant, belite-rich cement, alumina cement, blast-furnace cement, fly ash cement, and various blended cements. The blending ratio of cement is in the range of 30 to 65% by mass, and preferably in the range of 35 to 55% by mass.

[0018] The siliceous powder is a component used to improve the waterproofing function of the baseboard, and examples of such powder include silica stone, diatomaceous earth, microsilica, and silica fume, with silica stone being particularly preferred. The mixing ratio of the siliceous powder is in the range of 20-41% by mass, and preferably in the range of 25-37% by mass. If the mixing ratio of the siliceous powder is less than 20% by mass, the waterproofing effect is not obtained, and if the mixing ratio of the siliceous powder is more than 41% by mass, the strength of the baseboard decreases.

[0019] The aggregate is a component used to suppress heat generation and shrinkage during curing, and examples of the aggregate include sand, fly ash balloons, shirasu balloons, pearlite balloons, obsidian balloons, perlite, vermiculite, kanamite, and glass micro balloons. The aggregate mixing ratio is in the range of 8 to 31% by mass, and more preferably in the range of 12 to 26% by mass. If the aggregate mixing ratio is less than 8% by mass, appropriate heat generation and suppression effects cannot be obtained, and if the aggregate mixing ratio is more than 31% by mass, the strength of the baseboard decreases.

[0020] Fibers are components used to enhance frost resistance, such as preventing cracks and improving bending strength of baseboards, and include organic fibers such as pulp, waste paper, polyamide fibers, polyester fibers, polypropylene fibers, and vinylon fibers, and inorganic fibers such as glass fibers and carbon fibers, with pulp being particularly suitable. The fiber blending ratio is in the range of 2 to 11 mass%, and more preferably in the range of 2.5 to 8 mass%. If the fiber blending ratio is less than 2 mass%, appropriate effects such as preventing cracks and improving bending strength cannot be obtained, and if the fiber blending ratio is more than 11 mass%, the strength of the baseboard decreases.

[0021] The baseboard 1 obtained by mixing the above components in the above ratio is excellent in heat resistance, impact resistance, frost resistance, and water resistance, and is suitable as a non-combustible material. Specifically, the strength attenuation rate is 10% or less, and the thermal expansion coefficient is 1.0 to 15.0 × 10 -6 / ℃, impact strength is 0.8~25.0kJ / m 2 It is also preferable that the thermal conductivity is 0.3 W / mK or less and the water absorption is 40% or less. In addition, it is preferable that the volume change rate when the baseboard is immersed in water and repeatedly frozen and thawed is 10% or less, because this has excellent water resistance and frost damage resistance. The baseboard 1 of the above structure may have a front surface which is curved from the top to the bottom surface, and a back surface 11 which faces the heat insulating panel, fire resistant panel or fire retardant panel, with the back surface being a flat surface (Fig. 2(a)), or may have a locking notch formed on the back surface (Figs. 4(a)(b)). The chamfered portion 13 which is inclined from the back surface 1h and bottom surface 1t has a predetermined inclination angle, but this can be selected as appropriate. The chamfered portion 13 is chamfered on the baseboard 1 so that the baseboard 1 can be properly attached at the intersection. The joint at the intersection where the bottom of the wall surface Q intersects with the floor surface P may have a gap, an inappropriate angle, or an irregular surface, making it impossible to properly attach the baseboard 1 at the intersection. Therefore, the baseboard 1 is provided with the chamfered portion 13, and the wall surface Q1 and the back surface 1h are abutted against each other, and the floor surface P is abutted against the bottom surface 1t, so that the baseboard 1 can be properly attached at the intersection where the bottom of the wall surface Q1 intersects with the floor surface P. In addition, the chamfered portion 13 prevents the difference in surface roughness between the bottom surface 1t and the back surface 1h from affecting each other (at the chamfered portion 13) as described later (FIGS. 6(a)(b)).

[0022] In addition, the baseboard 1 has different densities (filling density) between the surface side and the inner side (center and center of gravity), and the surface side is formed to have a lower density than the inner side (center and center of gravity) 1s. That is, the center 1s and center of gravity of the baseboard 1 are formed to have a higher density than the outside. Also, the baseboard 1 has a structure in which the floor coating paint R penetrates into the surface side of the baseboard 1 but does not penetrate into the inner side. In the baseboard 1 of this embodiment, the water absorption rate is different between the inner side (center) 1s and the surface side (outer periphery) 1t of the baseboard, for example, the inner side (center) 1s of the baseboard 1 is 20 to 30% or less, and the surface side (outer periphery) is 31 to 40% or less. As a result, even if the baseboard 1 is high, a stable posture is ensured, and the floor coating paint R does not penetrate into the inside, and condensation and mold or rust are prevented from occurring inside, preventing the baseboard from becoming easily rotten or damaged.

[0023] 6(a)(b) and 7(a)(b) are diagrams showing other examples of the baseboard 1 of this embodiment. The baseboard 1 is non-combustible and flame-retardant, containing cement, siliceous powder, aggregate and fiber, and has a two-layer structure with different packing densities and surface roughnesses (surface roughness and internal roughness) on the surface side 1m, 1u, 1t, etc. and the internal side (center and center of gravity) 1s. In this embodiment, the surface side (symbol β) 1m, 1u, 1t, 1h has a structure with a low packing density (density) and a rough surface roughness. This is to prevent water from entering the interior and causing corrosion, condensation, mold and rust, which would occur if the interior were hollow, and to improve the insulation effect and impact resistance, while allowing the floor coating material R to permeate the surface side of the baseboard 1 but not the internal side (center and center of gravity) 1t, so that the surface side can be cut and polished. The rear spacer Sp2 and the corner spacer Spc used on the rear side 1h of the baseboard 1 are shown in Figs. 6(a) and 6(b). The above-mentioned double-structured baseboard 1 may have a structure in which the density (packing density) and surface roughness are different between the bottom surface 1t and the back surface 1h. As shown in Fig. 6(a)(b), the structure has a low packing density and a rough surface roughness (inner side, center, and center of gravity: symbol α)> symbol β (back surface 1h and bottom surface 1t, etc.). The reason for this is that the bottom surface side of 1. and 2. has a structure in which the packing density is lower and the surface roughness is rougher than the back surface side in the chamfered portion 13 (the distance and length of shrinkage in the height direction of the concrete floor is usually larger than the lateral direction (shrinkage, etc.)) (the distance and length of shrinkage in the lateral direction (width direction of the baseboard 1) of the concrete floor is usually smaller), and the structure is adapted to this. The chamfered portion 13 blocks the waves and prevents them from propagating to each other. In other words, the chamfered portion 13 is used to prevent the difference in surface roughness between the bottom surface 1t and the back surface 1h from affecting each other. The above-mentioned double-structure baseboard 1 has a structure in which the surface sides 1h, 1t, and 1m have different specific gravities (densities) from the inner side 1s (specific gravity = mass of object / mass of water equal to the volume of object). For example, the specific gravity of normal concrete is around 2.3t / m3, that of high-strength concrete is around 2.4t / m3, that of lightweight concrete type 1 (part of the aggregate is lightweight aggregate) is 1.8-2.1t / m3, and that of lightweight concrete type 2 (all of the aggregate is lightweight aggregate) is 1.4-1.8t / m3. It is conceivable to combine these (the inner side has a higher specific gravity) to form the surface sides 1h, 1t and the inner side 1s of the above-mentioned baseboard 1. The baseboards 1A and 1B of this embodiment have a back portion 1h that contacts the wall surface Q, a curved portion 1m on the front, a bottom portion 1t that contacts the floor surface P, a chamfered portion 13, and an inner side (center portion or center of gravity) 1s (FIGS. 7(a) and 7(b)). The inner side (center portion or center of gravity) 1s is provided along the chamfered portion 13, and the inner side (center portion or center of gravity) 1s (α) is denser and more waterproof than the other portion 2., and is heavier than the outer portion (symbol β) (the surface roughness of symbol α is smaller than that of the other portion β). The baseboards are arranged in a stable position at the lower end of the wall surface Q, which is the corner portion, and the inner side (center portion or center of gravity) 1t (symbol α) is prevented from corroding or water entering, and the corner portion 13 is also prevented from water entering or condensation occurring. In this embodiment, the baseboard 1 is coated with the decorative paint R2 or floor coating paint R1 in advance, but after adjusting the height direction and adjusting the connecting direction of the baseboards, the floor coating material R2 is applied from the lower end 1b of the baseboard 1 to the bottom surface 1t so as to reach the decorative paint R1, and / or adhesive S or caulking agent / sealant K is applied from the upper end 1u of the baseboard 1 to the wall surface Q or partition so as to reach the decorative paint R1, thereby applying the decorative paint or floor coating material R2 that is unlikely to peel off or be damaged (FIG. 1(b), FIG. 2(c)). The decorative paint R1 may be applied to the entire front curved surface 1m of the baseboard 1, or the decorative paint R1 or floor coating paint may be applied only to the upper end or lower end 1b of the baseboard 1.

[0024] In this embodiment, the baseboard 1 is coated with the decorative paint R2 or floor paint R1 in advance. After the height adjustment and the gap adjustment, the floor paint R2 is applied from the lower end 1b of the baseboard 1 to the bottom surface 1t so as to reach the decorative paint R1, and the adhesive S or the caulking agent / sealant K is applied from the upper end of the baseboard to the wall surface Q or partition so as to reach the decorative paint R1, so that the decorative paint or floor paint R2 that is difficult to peel off or be damaged can be applied (FIGS. 3 to 6). The decorative paint R1 may be applied to the entire front curved surface 1m of the baseboard 1, or the decorative paint R1 may be applied thickly only to the upper end or lower end 1b of the baseboard 1, and the paints R1 and R2 may be applied (FIGS. 8(a)(b)). Excess paint applied in advance can be removed by the grinding or polishing process. In addition, the gap adjustment and height adjustment in this embodiment are performed by interposing spacers Sp1, Sp2 or sheet material C used for adjusting the height together with the baseboard 1, or by filling the gap with a caulking agent K. The spacers Sp1, Sp2 can be commercially available products made of synthetic resin or the like, but in this embodiment, the bottom side spacer Sp1 and the back side spacer Sp2 may be made of a mixture of cement and siliceous powder as main raw materials, and further containing aggregate and fiber, which is molded and hardened to have excellent heat resistance, impact resistance, frost damage resistance, and water resistance, and is used as a non-combustible material for fireproof or semi-fireproof buildings. The spacer Sp of the heat insulating panel Q2 can also be configured as described above. Some spacers made of synthetic resin or the like are stacked in multiple sheets with a thickness of 1 mm each to adjust the height. The sheet material C is made of synthetic resin or rubber (such as a waterproof sheet), but an adhesive section is not necessarily required. The sheet material C can be used by being interposed between the spacers Sp1 and spacers Sp1, or by interposing a spacer Sp1 between sheet materials (Fig. 1(c)). The sheet material C can also be used to adjust for unevenness on the concrete floor surface, allowing movement without using adhesive. The spacers Sp1, Sp2 and sheet material C can be used in combination (Fig. 1(c)). For example, they can be made of the same components and structure as the baseboard 1, or made of synthetic resin or metal, and the underside Sp2b can be attached to the floor surface P with adhesive or double-sided adhesive tape. These can also be used in conjunction with filling in gaps using caulking or the like. The gap adjustment and the height adjustment of the baseboard may be performed by gap filling construction using a caulking agent or a sealant for waterproofing and joint countermeasures. For example, gap filling construction is construction in which a caulking agent is used (a primer can also be used), masking tape is applied to the outside of the joint, and the masking tape is finally peeled off, but this embodiment serves to adjust the gap and adjust the height position of the baseboard 1. This is because it is necessary to take measures against unevenness and grooves on the concrete floor surface P. In buildings, filling gaps with joint materials or the like for the purpose of improving airtightness and waterproofing is often called gap filling construction. And the material used for this, such as putty, is also called a sealant, sealant, filler, or simply sealing. The difference between sealing and caulking is that they are often used in the same sense on site, but strictly speaking, something with a fixed shape is called "sealing" and a resin-based material applied from a tube-shaped dedicated container caulking gun is called "caulking", but "caulking" and "sealing" are often used as synonyms on construction sites.

[0025] 4(a) and (b) are application examples of the first embodiment, which are different in that gaps F1, F1 are formed between the concrete floor surface P and the insulating panel Q2 on the lower side of the wall surface when adjusting the height direction by inserting the spacer or sheet material or filling the gap with a caulking agent or sealant, and that a spacer Sp1 is placed in a part of the gap. The insulating panel Q2 on the lower side of the wall surface is an insulating panel, fireproof panel, or fireproof panel having a member 8 protruding outward, and a height adjustment part N is attached to the center. On the other hand, the baseboard 1 is provided with a locking groove (gap) 9 corresponding to the U-shaped frame 8 of the insulating panel Q2, etc. The spacer Sp is placed between them. The spacer Sp2 or sheet material C may be placed in the locking groove (gap) 9. The spacer Sp is also placed on the lower side of the insulating panel Q2, etc., but the spacers Sp1 and Sp2 of the present embodiment may be used for placement. The heat insulating panel Q2 etc. is a conventional one made of metal or synthetic resin, and is provided with a bolt (screw) N and a spacer Sp as height adjustment means arranged at the lowest end of a wall surface or the like. This is an example of joining the baseboard 1 and the concrete floor surface P in the height position direction without using adhesive S between the baseboard 1 and the concrete floor surface P, while allowing the baseboard 1 to move. That is, the spacer Sp3 or the sheet material C is interposed to adjust. The gap between the bottom surface 1t of the baseboard 1 and the floor surface P and the height position of the baseboard are adjusted without using adhesive S at the adjustment position As1, but adhesive S may be interposed between the bottom surface 1t of the baseboard 1 and the concrete floor P at a location As2 other than the adjustment position after the adjustment. In this embodiment, the amount of adhesive S used can be reduced, and contact with the floor surface P that flexibly responds to the shrinkage of the concrete floor can be achieved, preventing peeling and damage of the floor coating paint R2. The amount of adhesive used can also be reduced on the wall surface Q1 or the partition and the back side of the baseboard 1 by separating the position where the adhesive is placed from the position where the caulking is bonded.

[0026] (Method of installing baseboards on concrete floors of buildings such as cold storage warehouses) First, as a premise, it is generally known that concrete undergoes volumetric changes due to expansion, shrinkage, and creep. Expansion is expansion due to heat of hydration and temperature changes such as solar radiation and air temperature, while shrinkage is shrinkage due to temperature drops, drying shrinkage, and autogenous shrinkage. Creep is an increase in strain due to sustained load, which causes cracks and gaps. In the construction method of baseboard 1, if the floor surface is concrete, cracks and gaps will occur due to these effects, but if floor coating paint R is applied to the floor surface, damage to floor coating paint R (cracking, cracking, peeling, etc.) will cause construction problems. From these points of view, the major shrinkage and shrinkage direction that must be considered in practice are the downward and lateral directions of the concrete floor. In this invention, (1) shrinkage that occurs when constructing the concrete floor, which is shrinkage downward as the floor surface drops and shrinkage toward the center of the room, but when multiple baseboards 1 are connected to each other to make it longer, lateral shrinkage that takes into account the connections at the sides of the baseboards must also be considered. In addition, (2) when the concrete floor is completed as a building, shrinkage that occurs due to temperature control by the cooling mechanism of the cold storage warehouse was also considered, and the construction method of this embodiment was carried out while considering how this shrinkage affects the construction method of the baseboards on the concrete floor.

[0027] (Method of installing baseboards on concrete floors, taking into account shrinkage that occurs when constructing the concrete floor) As a premise, in a cold storage warehouse, the concrete wall surface may be erected first, and then the concrete on the floor surface may be poured. In such a case, the construction method of this embodiment is used. In many cold storage warehouses in food factories, the wall material of the heat insulating panel, fireproof panel, and fire prevention panel is embedded into the floor, but the floor inside the cold storage warehouse is protected from heat by laying heat insulating material and surrounded by the heat insulating material, and the concrete floor surface is poured on the heat insulating material laid on the floor. At this time, the concrete slab may shrink due to cooling, causing a gap at the joint with the wall surface. In that case, if the concrete slab is glued and fixed to both the wall and the floor, it may be pulled by the floor and cause a problem with the baseboard 1, so it is necessary to consider the shrinkage of the floor concrete when considering the installation. In addition, in this specification, the fireproof panel and fire prevention panel are used to refer to a fireproof exterior wall base material based on cement, siliceous powder, etc. (and even glass fiber), which is generally used as an exterior base material for logistics warehouses and factories. 2(a) and (b) are process diagrams applied when installing a baseboard 1 on the wall surface of a building with a concrete floor such as a cold storage warehouse or a freezer / refrigerated warehouse, or on the lower side of a partition that divides the room. Here, the baseboard 1 is used with a decorative paint applied in advance to the curved or R-shaped portion, which is the front portion 1m, to adjust the gap and adjust the height direction (step 2-1). The reason for using the baseboard 1 with a decorative paint R1 applied in advance is that it is difficult to apply the decorative paint or floor paint neatly with a uniform thickness when the baseboard 1 is attached to the wall surface Q (temporary fixing). Then, the height direction position of the baseboard 1 is determined by marking, and the back side 1h of the baseboard 1 is fixed with adhesive S (permanent fixing). The gap between the bottom surface 1t of the baseboard 1 and the concrete floor P is adjusted by inserting a spacer Sp1, a sheet material C, or a caulking agent K in the gap between the bottom surface 1t of the baseboard 1 and the concrete floor P (step 2-2). Here, when the length of the baseboard 1 is long (adjustment of the height position of the baseboard), the bottom surface 1t of the baseboard 1 is cut or polished. In this height adjustment, it is preferable not to use adhesive between the bottom surface 1t of the baseboard 1 and the concrete floor P, but to allow the effects of shrinkage of the concrete floor P as they are, and the adhesive is applied to the bottom surface of the wall side 1h (at a position where the center of gravity of the baseboard is high). In this embodiment, the floor coating paint R is applied to the baseboard 1 in advance, but after the position of the baseboard 1 is determined, the floor coating paint R is applied to the concrete floor surface P (second application of floor coating paint: step 2-2 in FIG. 2). At this time, the floor coating paint may be applied again to the baseboard 1. Here, a stopper St is placed on the lower end (tip) of the curved shape of the baseboard, providing a gap between the tip side 1st of the curved portion 1m and the floor coating paint R2 (Fig. 2(a)). The stopper St is removed after the baseboard 1 has been positioned in the height direction. Meanwhile, Fig. 2(b) shows an example in which floor coating paint R2 is applied without using the stopper St. Here, decorative paint R1 has been applied to the front portion of the baseboard 1 beforehand, but if the lower tip of the curved portion 1m is fixed using the floor coating paint R2, a strong floor coating is applied by double application. Furthermore, the side surfaces 1d are connected, leaving a gap (approximately 5 mm as a guideline) for filling in the joint material (Figs. 8(a)(b)). The connection between the baseboards (horizontal connection) is preferably adjusted by cutting or grinding the side surface 1d of the baseboard 1, and / or by gap filling using a spacer Sp1, sheet material C, caulking agent K, or the like between the side surface 1d of the baseboard 1 and the side surface 1d of the baseboard 1. Note that multiple baseboards 1,1 are connected together by applying caulking agent K or adhesive S between the side surfaces (Figs. 8(a)(b)). In addition, by filling the joints with a material with excellent flexibility (such as synthetic resin or rubber covering agent), cracks and chips near the joints can be prevented. A joint sealant or adhesive may be applied to the chamfered portion 13 at the lower end on the back side of the baseboard 1 for waterproofing.

[0028] (When a concrete floor is completed as a building, the impact on the construction method of baseboards of changes in the volume of the concrete floor (shrinkage, etc.) caused by temperature control using the cooling mechanism of a cold storage warehouse) Even when not pouring concrete, the volume of the concrete floor may change (shrinkage, etc.) due to temperature control by the cooling mechanism of the cold storage warehouse. However, the volume change (shrinkage, etc.) is usually smaller than when pouring concrete. Therefore, it can be installed in the same way as the baseboard 1 when pouring concrete. Here, no adhesive is applied between the bottom surface 1t of the baseboard 1 and the spacer Sp1. Because the baseboard 1 and the floor surface P are not directly bonded, the movement of the baseboard 1 is permitted, and it is possible to adjust the gap between the bottom surface 1t of the baseboard 1 and the concrete floor P, the height direction position of the baseboard (position of the bottom surface) (downward change: Y1), and the center direction of the room (horizontal direction: X2) (the arrows in the figure indicate the concrete shrinkage method and size). In the case where the adjustment is made while allowing for changes such as shrinkage, further adjustment is possible by interposing a spacer Sp1, a sheet material C, or a caulking agent at the bottom surface 1t of the baseboard 1 (it is preferable to not provide a gap F1 at the bottom surface 1t of the baseboard 1 as much as possible). In addition, in this embodiment, the adjustment by interposing the spacer Sp1 or the sheet material C at the bottom surface 1t of the baseboard 1 or by using a caulking agent / sealing agent and the position where the adhesive S is placed are performed separately, but this is in consideration of adjustment while allowing for changes such as concrete shrinkage. Therefore, if such adjustment is not necessary, the adjustment may be made by using the spacer Sp1 or the sheet material C together with the adhesive S or the caulking agent / sealing agent K at the same location (the same position at the bottom surface 1t of the baseboard 1). In addition, in the inventor's experiment, when the volume change of the concrete floor P is large, it is better to use as little adhesive S as possible. This is because if the concrete floor P is fixed using the adhesive S, it will not be able to move flexibly in response to the volume change. For this reason, it is preferable to use adhesive only between the concrete floor surface P and the spacer and not between the spacer and the baseboard 1. Note that caulking agent K usually does not have as much adhesive effect as adhesive S.

[0029] 1(a) and (b) are process diagrams explaining the method of installing baseboards on the second concrete floor. First, after pouring of the concrete floor P is completed, floor paint is applied on it (step 1-1). Here, it is necessary to apply the floor paint R1 to the concrete floor P so that the floor paint R1 does not become uneven, but in order to do so, it is necessary to take into consideration the volume change (shrinkage, etc.) of the concrete floor P. Here, since unevenness, etc. may occur in the floor paint R1 on the wall surface Q1,2 side due to shrinkage, etc. of the concrete floor P, it is necessary to apply a sufficient amount of floor paint R1 to the wall surface side Q. Next, the baseboard 1 is coated with a decorative paint on the curved or R-shaped portion of the front portion 1m, and the gap and height are adjusted (step 1-2). In this case, the baseboard is temporarily fixed (placed so as to be aligned with the wall), and the height of the baseboard 1 is determined by marking, and the position of the baseboard 1 is adjusted. The gap between the bottom surface 1t of the baseboard 1 and the concrete floor is adjusted by inserting a spacer Sp1, a sheet material C, or a caulking agent or sealant in the gap between the bottom surface of the baseboard 1 and the concrete floor P. If the length of the baseboard 1 is long (adjustment of the height of the baseboard), the bottom surface of the baseboard is cut or polished. In this height adjustment, no adhesive is used between the bottom surface 1t of the baseboard 1 and the concrete floor P, and the effect of shrinkage of the concrete floor P is allowed as it is. The baseboards are connected to each other by opening a gap F1 for filling with a joint material or adhesive. When a decorative paint is applied to the baseboard 1 in advance, it may become necessary to remove the excess decorative paint. In this case, too, the bottom surface of the baseboard is removed by cutting or polishing. Next, when the back side 1h of the baseboard is fixed with adhesive (permanent fixing) and the gap between the bottom and the concrete floor is adjusted by inserting a spacer Sp1, sheet material C, caulking agent or sealant, this can be done in a separate process, or it can be done simultaneously by combining these processes (Fig. 1(a)). Here, the floor paint (decorative paint) R1 is applied to the curved portion (front portion opposite the wall surface) 1m of the baseboard 1, and the tip of the lower side of the front portion 1m is further fixed with floor paint.

[0030] 10(a)(b) and 11(a)(b) are schematic diagrams for explaining an example of installing baseboard 1 on the wall surface of a building with a concrete floor, such as a cold storage warehouse or a freezer / refrigerated warehouse. As for volumetric changes (shrinkage, etc.) that occur when pouring a concrete floor for a cold storage warehouse or a refrigerated warehouse, it is highly necessary to consider shrinkage toward the lower side (ground side) and how to deal with the center of the room. In this embodiment, a heat insulating panel Q2 or the like is placed on the lower side of a partition that separates the rooms, and the baseboard 1 is also placed and floor coating paint R is applied to the baseboard 1. In this embodiment, even if the volume change (shrinkage, etc.) of the concrete floor is large, accurate positioning can be achieved by grinding the bottom surface of the baseboard (using sandpaper) or by arranging spacers Sp1, etc., so that the floor paint and decorative paint R1 can be applied neatly. In addition, the heat insulation of the baseboard and the heat-insulating panel Q2, etc. can be improved, and the occurrence of condensation, mold, and rust between the baseboard 1 and the heat-insulating panel Q2, etc. can be suppressed.

[0031] In addition, when attaching the baseboard 1 to the wall surfaces Q1 and Q2, an adhesive S or a caulking agent K may be used since it is sufficient to fix the baseboard 1. Finishing with the caulking agent K is done by applying a floor coating (floor material) R such as mortar to the floor surface P and the front side of the baseboard 1. As the floor coating R1 and R2, a polyurea resin, which is a resin compound produced by a chemical reaction between isocyanate and polyamine, was used, but the present invention is not limited to this. Although the strength of the polyurea resin is about the same as that of concrete, some grades have an expansion rate of 400 to 500%. In addition, when connecting the baseboards 1 and 1, sealing is performed for the purpose of sealing with a filler for waterproofing, soundproofing, and heat insulation (also called caulking in the construction field), and an acrylic urethane type sealant was used for this purpose (Figures 8(a) and (b)). This embodiment is characterized in that the floor coating is applied first, and that decorative paint R1 is applied in advance to the baseboard 1 (Fig. 1, step 1-1). A floor coating contractor paints the baseboard 1, an interior decorating company cuts it, and the floor coating contractor applies floor coating paint to the baseboard 1 again. The floor coating paint R2 may also be applied to the gap 1F. A strong baseboard 1 is constructed by using the gap 1F.

[0032] The floor coating paint R can be applied to the entire area 1m, 1h, 1t of the front side of the baseboard 1 and also to the floor surface P. If the floor coating paint is simply applied without adjusting the height direction or adjusting the uneven surface due to concrete shrinkage, the floor coating paint will be damaged (cracks, chasms, peeling, etc.) more frequently depending on the volume change of the concrete (shrinkage, etc.). Note that if the floor coating paints R1 and R2 are applied only once, the damage to the applied surface of the floor coating paint is often large. Therefore, since the volume change (shrinkage, etc.) occurs on the concrete floor surface, the baseboard 1 is fixed, and the baseboard is allowed to move due to concrete shrinkage, and the movement is confirmed, and then the floor coating paints R1 and R2 are used again to finish the floor surface P with a double coating structure (Fig. 1(b)).

[0033] In Table 1, the construction structure of the baseboard for the concrete floor of this embodiment is compared with the action and effect of the synthetic resin baseboard and the aluminum baseboard. According to this embodiment, shrinkage is suppressed to a small extent (the amount of deviation can be reduced), condensation, mold, and rust are unlikely to occur, and construction with high impact resistance and chemical resistance is possible. In addition, while on-site construction using plastering and floor coating takes a long time, this embodiment can be realized as a short construction period through efficient work. In addition, even when constructed in combination with an insulating panel or the like (fireproof panel / fireproof panel) Q2, the baseboard of this embodiment suppresses the occurrence of condensation, mold, and rust between the insulating panel or the like (fireproof panel / fireproof panel) Q2 made of synthetic resin or aluminum.

[0034] (Table 1) JPEG2025006141000002.jpg70128

[0035] Table 2 explains the comparative effects when the floor surface is concrete. According to this embodiment, since the baseboard 1 is made of the same material as the concrete floor surface, it is possible to ensure that the baseboard moves in response to the shrinkage of the concrete floor surface (it moves in response without using adhesive), which prevents damage to the floor coating paint R and reduces the amount of adhesive used. Also, the center and center of gravity of the baseboard 1 are formed with a higher density than the outside, and the floor coating paint R is structured so that it seeps into the surface side of the baseboard 1 but does not seep into the inside.

[0036] (Table 2) JPEG2025006141000003.jpg70144

[0037] As shown in Table 2, this embodiment can reduce the amount of adhesive used and reduce peeling and damage to the floor coating material. Also, according to this embodiment, the floor coating paint (decorative paint) is applied in advance to the baseboard 1, and the density is high inside (symbol α in Figs. 5 and 6), but the surface sides 1t, 1m, 1u, and 1h (symbol β in Figs. 5 and 6) can be impregnated with the floor coating paint.

[0038] (Method of installing baseboard according to the second embodiment) 2(a) and (b) are schematic explanatory views showing a baseboard installation method according to a second embodiment of the present invention. In the second embodiment, a heat insulating panel or the like (fireproof panel or fireproof panel) Q2 is arranged on the lower side of a wall surface Q1 of a building having a concrete floor such as a cold storage warehouse or a freezer / refrigerated warehouse, and the baseboard 1 is arranged and then the floor coating paint R is applied. The baseboard 1 in the second embodiment is formed by a back surface portion 1h that abuts against the wall surface Q, a flat upper portion u1 provided on the upper front surface, a curved surface portion 1m provided on the lower front surface, a bottom surface portion 1t that abuts against the floor surface P, a chamfered portion 13 that connects the other end of the bottom surface portion 1t to the lower end of the back surface portion 1h, and a side surface portion 1d. In adjusting the height direction between the baseboard 1 and the floor surface P, it is not necessary to arrange the spacer Sp1 or the like over the entire lower portion, and gaps F1, F2 may be formed (FIGS. 4(a)(b)). This is in consideration of the fact that if the spacers Sp1 are placed over the entire bottom surface area, the amount of movement of the baseboard 1 increases when the volume of the concrete floor P changes (shrinkage, etc.), making it difficult to adjust the height of the concrete floor surface P. If the spacers Sp1, etc. are not placed over the entire bottom surface area (when only grinding or polishing is performed), there is no need to place an adhesive or the sheet material C (Fig. 3(a)(b)).

[0039] A heat insulating panel Q1 or the like capable of adjusting the height direction and the uneven surface is arranged on the bottom surface of the wall surface or the partition, and the height direction and the uneven surface are adjusted by a central adjustment part Q2 having a U-shaped cross section, and the height of the heat insulating panel, fireproof panel, and fireproof panel Q2 is adjusted by cutting or grinding the bottom surface part 1t of the baseboard 1. Also, a locking groove part 9 is provided on the back side of the baseboard 1 to create a gap between the heat insulating panel Q2 or the like for adjusting the height direction and the uneven surface, and to allow the baseboard 1 to be hung on the U-shaped frame 8 of the wall surface Q1. That is, the heat insulating panel Q2 or the like capable of adjusting the height direction and the uneven surface is equipped with a U-shaped frame 8 protruding outward in height together with a spacer Sp1 and a sheet material C, and therefore can be hung on the locking groove part 9 of the baseboard 1 to be temporarily fixed and positioned, and the gap and the height direction can be adjusted. It is also possible to place a spacer Sp1, a sheet material C, or a caulking agent K in the groove 9 for engagement. As the spacer Sp1 and the sheet material C, it is also possible to use a sheet-shaped urethane foam or a rubber elastic tape. Furthermore, the spacer Sp1 may be a caulking agent K. The spacer and the sheet material C do not need to have a length that covers the entire range of the bottom surface 1t, and form gaps F1 and F2. In this embodiment (in this specification), the spacer Sp1 and the sheet material C are used for adjustment and the adhesive S is used for adjustment, and although there is a difference in the presence or absence of adhesive, they can be used at the same position. In this case, it is preferable to use an adhesive only between the concrete floor surface P and the spacer Sp1 or the sheet material C.

[0040] Therefore, when adjusting the height of the baseboard 1 or adjusting the uneven surface, if the height of the baseboard 1 is higher than the expected height (if the expected height is only slightly different), the bottom surface of the baseboard 1 is adjusted by cutting or grinding (FIG. 2(a)). Also, the height adjustment using the spacer Sp1 or sheet material C is an adjustment performed when the expected height is significantly different. In addition, since the shape of the lower side of the curved surface of the baseboard 1 (the lower end tip side of the R shape where the curved surface is formed on the front surface) St1 is narrow, it is highly necessary to ensure adhesion with the floor coating at the bottom surface part, which is the lower end side. However, in this embodiment, in addition to the decorative coating R1 being applied to the curved surface part 1m in advance, the floor coating coating R2 can be applied on top of it (double coating), so that a beautiful finish can be achieved with fewer cracks.

[0041] The connection between the side parts of the baseboards can be adjusted by cutting or grinding the side parts of the baseboards and / or by inserting a spacer or sheet material between the side parts of the baseboards (the height direction and connection direction can also be adjusted at the same time), and the same effect can be obtained in the above cases. The connection adjustment between the side parts of the baseboards can be performed at the same time as the adjustment of the height direction and the gap between the baseboard and the floor.

[0042] (Applicable to partition Qm) 11(a) and (b) show the application of this embodiment to a partition (screen or partition) Qm that separates a room. Basically, the application to the partition Qm is similar to the case of the building (warehouse) of the above embodiment, but the partition Qm is thinner than the case of application to a wall surface, so the baseboard 1 and the baseboard 1 are arranged in a pair on the left and right sides with the partition Qm or the like in between. A heat insulating panel Q2 is arranged below the partition Qm, but a fireproof panel or a fireproof panel may also be arranged. In this embodiment, a heat insulating panel Q2 capable of adjusting the height direction is arranged on the bottom surface of the partition Qm, and the height direction and the uneven surface are adjusted by the height adjustment part N in the center. The adjustment between the heat insulating panel Q2 and the baseboard 1 and the baseboard 1 becomes complicated, and it is necessary to consider the shrinkage of the concrete floor. However, in this embodiment, the height is adjusted by cutting or grinding the bottom surface part 1t of the baseboard 1, or by interposing a spacer Sp1 or a sheet material C. Here, no adhesive S is used on the front tip side 1b of the baseboard 1, but this is because the adjustment of the gap with the unevenness of the floor surface P, which is performed by interposing the spacer Sp1 or the sheet material C, is performed by adjusting the height position while allowing the left and right baseboards 1 and the baseboard 1 to move due to their shrinkage, etc., and an adhesive is interposed on the back side 1h (notch part 13) of the baseboard. That is, the adhesive S is used to bond to the floor surface P at a position where the back side of the baseboard 1 is stabilized. When applying this invention to the partition Qm, it is considered that the partition Qm is narrower than the wall surface and sways left and right more than the wall surface. When the rate of volume change due to the concrete floor surface P is also taken into consideration, the above-mentioned height direction and gap adjustment using as little adhesive as possible may be effective in more accurate position adjustment than the wall surface. Therefore, accurate positioning can improve the insulation effect, impact resistance, chemical resistance, etc. It is known that the shrinkage of concrete floors when pouring concrete (when constructing a building) is greater in the downward direction than in the horizontal direction, and when the partition Qm is to be remodeled, it is often the case that several years have passed since the building was constructed, and there is usually no significant change in shrinkage, etc. If the cooling mechanism of the freezer / refrigerated warehouse can be used, it is preferable to set the baseboard 1,1 relative to the partition Qm while checking the shrinkage of the concrete floor using the cooling mechanism.

[0043] As described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. In this embodiment, an example of installing baseboard 1 on the wall surface of a building when pouring concrete has been described, but the present invention can be applied in the same manner to cases where a concrete floor is poured to create a partition Qm that separates rooms, and can also be applied to corner base materials. [Explanation of symbols]

[0044] 1, 10A, 10B, 11 Baseboard of the present invention, 8. U-shaped frames for heat insulation panels, etc. 9. Baseboard retaining groove; 13 Chamfered part of baseboard (corner contact part), 1b Front end of baseboard, 1d Side of baseboard, 1m Front (curved surface, R-shaped), 1h Back, 1u top, 1t bottom, 1s inside (center and center of gravity), N Height adjustment tool, P floor surface (concrete floor surface), Q1, Q2 Walls (insulation panels, fireproof panels, fireproof panels, waterproof panels), Qm Partitions (heat-insulating panels, fire-resistant panels, fire-resistant panels, waterproof panels), R, R1, R2 floor coating paint (R1 decorative paint), S adhesive (application area), Sp spacer (spacer on the insulation panel Q2 side, etc.), Sp1, Sp2, Sp3 spacers (spacers on the baseboard 1 side), K Caulking agent / sealant, X1 direction: Lateral movement (displacement) of the floor surface in the room due to concrete shrinkage. X2 direction: Movement to the center of the room due to concrete shrinkage (displacement), Y-direction: Downward movement (displacement) of the floor surface due to concrete shrinkage

Claims

1. This method of installing baseboards on concrete floors involves placing baseboards on the lower part of the walls of buildings with concrete floors, such as cold storage warehouses and freezer / refrigerated warehouses, or on the lower part of partitions separating those rooms, and applying floor paint to the baseboards.The baseboards are made of non-flammable and fire-retardant concrete-based materials whose main ingredients are cement and siliceous powder from the outside to the inside, and are placed on the lower part of the walls or partitions.The baseboards are characterized in that the gap between the bottom of the baseboard and the concrete floor and the height position of the baseboard are adjusted by cutting or polishing the bottom of the baseboard, and / or by inserting a spacer or sheet material into the gap between the bottom of the baseboard and the concrete floor, or by filling the gap with a caulking agent or sealant.

2. This method of installing baseboards on concrete floors involves placing insulating panels, fireproof panels, or fireproof panels on the lower side of the walls or partitions separating the rooms of a building with a concrete floor, such as a cold storage warehouse or a freezer / refrigerated warehouse, and also placing baseboards and applying floor paint to them.The baseboards are made of non-combustible and fire-retardant concrete-based materials made primarily of cement or siliceous powder from the outside to the inside, and are placed on the lower side of the walls or partitions, and the gap between the bottom of the baseboard and the concrete floor and the height direction of the baseboard are adjusted by cutting or grinding the bottom of the baseboard and / or by inserting a spacer or sheet material into the gap between the bottom of the baseboard and the concrete floor, or by filling the gap with a caulking agent or sealant.This method of installing baseboards on concrete floors involves placing insulating panels, fireproof panels, or fireproof panels on the lower side of the walls or partitions and applying floor paint to them.

3. A method for constructing baseboards on concrete floors as described in claim 1 or 2, characterized in that a first application step of applying the floor paint to the concrete floor is carried out, the application state of the floor paint due to volume changes (shrinkage, etc.) of the concrete floor is checked, and then the gap between the bottom portion of the baseboard and the concrete floor and the vertical position of the baseboard are adjusted before a second application step of applying the floor paint to the baseboard is carried out.

4. A method for installing baseboards on concrete floors as described in claim 1 or 2, characterized in that the baseboard has decorative paint pre-applied to the curved and R-shaped portions at the front surface, and the gap and height are adjusted, and after the adjustment, the floor paint is applied from the lower side end of the baseboard to the bottom surface so as to reach the decorative paint, and / or an adhesive, caulking agent or sealant is applied from the upper side end of the baseboard to the wall surface or partition so as to reach the decorative paint.

5. A method of installing baseboards on concrete floors, in which baseboards are placed on the lower side of the walls of buildings with concrete floors such as cold storage warehouses and freezer / refrigerated warehouses or partitions separating the rooms, and floor paint is applied to the baseboards, characterized in that the baseboards are made of a non-combustible and fire-retardant concrete material made primarily of cement or siliceous powder from the outside to the inside, and / or the baseboards are made of a curved or R-shaped portion that is the front portion that has been pre-applied with decorative paint, and the gap between the bottom of the baseboard and the floor surface and the height direction of the baseboard are adjusted by cutting or polishing the bottom of the baseboard, and / or the gap between the baseboard and the concrete floor and the height direction of the baseboard are adjusted by inserting a spacer or sheet material into the gap between the bottom of the baseboard and the concrete floor, or by filling the gap with a caulking agent or sealant.

6. 1. A method for installing baseboards on concrete floors, in which heat-insulating panels, fire-resistant panels, or fire-prevention panels are placed on the lower side of the walls of a building with a concrete floor, such as a cold storage warehouse or a freezer / refrigerated warehouse, or on the lower side of the partitions separating the rooms, and baseboards are also placed and floor paint is applied to them, wherein the baseboard is made of a non-combustible / flame-retardant concrete-based material made mainly of cement or siliceous powder from the outside to the inside, and / or the baseboard is made of a curved or R-shaped portion that is the front part, which has been pre-applied with decorative paint, and the gap between the bottom part of the baseboard and the floor surface and the height direction of the baseboard are adjusted by cutting or grinding the bottom part of the baseboard, and / or the gap between the baseboard and the concrete floor and the height direction of the baseboard are adjusted by inserting a spacer or sheet material into the gap between the bottom part of the baseboard and the concrete floor, or by filling the gap with a caulking agent or sealant.

7. The baseboard has a different density on the surface side and at the interior center or center of gravity, and the decorative paint or floor coating paint is applied to the front side of the baseboard in advance, so that it penetrates the surface side of the baseboard but not the interior side.After adjusting the gap and adjusting the height, the baseboard is joined to the concrete floor and the wall or partition using an adhesive.This is a construction structure for baseboards on concrete floors as described in claim 5 or 6.

8. A construction structure for baseboards on concrete floors as described in claim 5 or 6, characterized in that the adjustment of the gap between the baseboard and the concrete floor and the adjustment of the height of the baseboard are performed at the front tip side of the bottom part of the baseboard without using adhesive, and the joint position between the baseboard and the concrete floor is performed at the wall side, which is the back part of the bottom part of the baseboard, using adhesive.

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