Building materials

Abstract

To provide a building material which does not impair a material feeling of a constituting material, and to provide a manufacturing method of building material.SOLUTION: A building material 1 includes: a base material 10 formed in a flat plate shape; and mineral 20 which is a material different from the main material constituting the base material 10, and which is collapsed and exposed at a surface 10a of the base material 10. The mineral 20 is pumice stone. The mineral 20 can be collapsed at a surface pressure of 10 kg / cm2-103 kg / cm2, and a ratio of particle diameter of the mineral with respect to plate thickness of the base material 10 is 0.3-4.0.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] This disclosure relates to architecture Material This is related to. [Background technology]

[0002] 2. Description of the Related Art Conventionally, construction materials used for the exterior walls of buildings and the like have been made by coating the surface of a base material (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2007-231586 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the configuration described in Patent Document 1, a coating is applied to the surface of the base material, which causes the texture of the base material to become uniform, resulting in a problem in that the original texture of the base material is lost.

[0005] The present disclosure has been made in consideration of the above circumstances, and is directed to a building structure that does not impair the texture of the constituent materials. Materials provide. [Means for solving the problem]

[0006] A building material according to one embodiment of the present disclosure includes a base material formed in a flat plate shape, and a mineral that is made of a material different from a main material constituting the base material and is crushed and exposed on a surface of the base material. The substrate has a water absorption prevention material. . [Brief description of the drawings]

[0007] [Figure 1] Building materials plan view. [Diagram 2] Cross-sectional view taken along line AA in Figure 1. [Diagram 3]FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, a building material according to one embodiment will be described with reference to the drawings. As shown in Fig. 1, a decorative building material (building material) 1 according to this embodiment includes a base material 10 and a plurality of minerals 20.

[0009] The substrate 10 is formed in a flat plate shape. The substrate 10 is mainly made of an inorganic material, for example. Examples of the inorganic material include cement, sand, and aggregate.

[0010] As shown in FIG. 2, the multiple minerals 20 are exposed on the surface 10a of the substrate 10. The minerals 20 are crushed and integrated with the substrate 10 by being pressed with a press machine described below. The minerals 20 are not crushed into a powdery sand-like state. The minerals 20 are formed by deforming the minerals 21 before being crushed (the minerals before production are referred to as "minerals 21"; see FIG. 3) while retaining their main shape. Since the multiple minerals 21 each have a different shape, the crushed multiple minerals 20 also have different shapes and are not uniform.

[0011] The surface 20a of the mineral 20 is formed in a flat shape. The surface 20a of the mineral 20 is disposed in the same plane as the surface 10a of the substrate 10. The mineral 20 does not reach the back surface 10b of the substrate 10.

[0012] The mineral 20 is composed of a material different from the main material constituting the base material 10. Examples of the mineral 20 include pumice such as Towada Mizusuna, Kiryu Sand, Kanuma Soil, Hyuga Soil, and Fuji Sand.

[0013] As shown in FIG. 3, the base material before manufacturing is called "base material 11". The mineral 21 is subjected to a surface pressure of 10 kg / cm 2 ~103kg / cm 2 It is preferable that the ratio of the grain size of the mineral 21 to the plate thickness of the substrate 10 after manufacture is 0.3 to 4.0.

[0014] Next, a method for producing the decorative building material 1 will be described. The substrate 11 is a hardened cement body obtained by mixing a cement composition with water and hardening it. The cement composition, which is the raw material of the hardened cement body, contains a hydraulic material, aggregate, and pulp material. The hydraulic material is used as a binder for the aggregate and pulp material, and is produced by adding siliceous raw materials such as silica sand, fly ash, blast furnace slag, and silica fume to cement. The molar ratio of calcium to silica in the hydraulic material is preferably 0.5 to 1.6. The content of the hydraulic material in the cement composition is not particularly limited, but is preferably 20 to 60 mass% in terms of solid content ratio.

[0015] The aggregate is a sand-like material whose main component is silicon dioxide, and may be natural aggregate that is collected and classified in the form of quartz sand from land, river mouths, coasts, etc., or artificial aggregate that has been subjected to crushing, classification, foaming treatment by high-temperature firing, etc. The amount of aggregate contained is not particularly limited, but it is desirable for it to be contained in an amount of 3 to 60 mass% in terms of solid content.

[0016] The pulp material is not particularly limited, but various pulp materials such as wood pulp, recycled paper pulp, etc. The content of the pulp material is not particularly limited, but it is preferably 5 to 15 mass % from the viewpoint of moldability.

[0017] The above cement composition and water are mixed and kneaded in a mixer etc. to form a slurry. The ratio of the cement composition to water is preferably 20 cm or less in terms of slump value.

[0018] As shown in FIG. 3, a plurality of minerals 21 are arranged on a surface 11a of a substrate 11 on which the above-mentioned slurry has been formed into a flat plate shape.

[0019] The press machine compresses the mineral 21 and the substrate 11 from above the mineral 21. This causes the mineral 21 to be crushed. As shown in FIG. 1 , a surface 20a of the mineral 20 is exposed on the surface 10a of the substrate 10, while a portion of the mineral 20 sinks into the substrate 10. The mineral 20 and the substrate 10 are integrated. Since the substrate 11 has a certain degree of viscosity, the mineral 21 does not reach the rear surface of the substrate 11 when pressed. At the same time, the mineral 20 crushed at a predetermined pressure is held flush with the surface 20a of the substrate 20.

[0020] In the decorative building material 1 configured in this manner, the crushed minerals 20 are exposed on the surface 10a of the base material 10, so the texture of the minerals 20 is not lost. The multiple minerals 20 have non-uniform shapes and no two have the same finish, so the texture and design are enhanced.

[0021] In Decorative Building Material 1, the mineral is pumice, which is easily crushed, making it easy to manufacture and placing less strain on production facilities. When pumice is crushed, it spreads out flatly, which allows the texture of the material to be expressed more. The grain shape of pumice is irregular, which naturally creates a sense of randomness.

[0022] For decorative building material 1, the surface pressure is 10kg / cm 2 If the surface pressure is less than 103 kg / cm, it is difficult to mold the substrate 10 made of an inorganic material. 2 If the pressure is larger than 10kg / cm, the load on the press machine will increase and the difficulty will increase. 2 ~103kg / cm 2 If the mineral 20 can be crushed with the method, it can be produced reliably.

[0023] In the decorative building material 1, if the ratio of the particle size of the mineral 21 to the plate thickness of the substrate 10 is less than 0.3, the mineral 21 will not be crushed and will remain embedded within the substrate 10. If the ratio of the particle size of the mineral 21 to the plate thickness of the substrate 10 is greater than 4.0, the mineral 21 will reach the back surface 10b of the substrate 10, significantly reducing the strength of the decorative building material 1. If the ratio of the particle size of the mineral 21 to the plate thickness of the substrate 10 is 0.3 to 4.0, the mineral 21 can be reliably crushed while maintaining the strength of the decorative building material 1.

[0024] The shapes and combinations of the components shown in the above-described embodiment are merely examples, and various modifications can be made based on design requirements, etc., without departing from the spirit of the present disclosure.

[0025] For example, the substrate 10 may be mainly composed of a material other than an inorganic material, and the mineral 20 may be a mineral other than pumice.

[0026] A water absorption prevention material may be used in combination with the substrate 10 of the decorative building material 1. By using a water absorption prevention material in combination, no film is formed on the substrate 10, so that the texture of the substrate 10 can be maintained while improving the water resistance. [Explanation of symbols]

[0027] 1. Decorative building materials (building materials)

Claims

1. A substrate formed in a flat plate shape; A mineral that is composed of a material different from a main material that constitutes the substrate and is crushed and exposed on a surface of the substrate; The substrate is a building material having a water absorption prevention material.

2. The mineral has a surface pressure of 10 kg / cm ２ ~103kg / cm ２ 2. The building material according to claim 1, which is crushable by crushing.

3. 3. The building material according to claim 1, wherein the ratio of the particle size of the mineral before crushing to the plate thickness of the base material is 0.3 to 4.0.

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