JP2000211980A - Porous water-permeable flooring board and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a porous water-permeable flooring board having improved usability, walkability and appearance, and further having excellent durability by mixing indeterminate coarse grains of ceramics having specific particle diameters, with fine grains thereof in a specified proportion, and binding the mixed grains with a vitreous material. SOLUTION: This porous water-permeable flooring board 10 is produced as follows: adding >=70 pts.wt. indeterminate coarse grains 20 of ceramics, having 0.05-1.40 mm particle diameters to <=30 pts.wt. indeterminate fine grains 30 of the ceramics having <0.50 mm particle diameters so as to form 100 pts.wt. in total; adding 15-20 pts.wt. vitreous particles having <=0.25 mm particle diameters, and 10-20 pts.wt. water glass to 100 pts.wt. both indeterminate grains 20 and 30, and kneading the obtained mixture; repeating twice the step of adding 0.1-0.3 pt.wt. alcohol to the kneaded product and kneading the obtained product under heating, to provide granulate material having the dried surfaces of the water glass of the coating films on the particles; casting the obtained granulate material in a molding box and pressing the molding box to provide a tabular body; and baking the obtained tabular body in a furnace to solidify the tabular body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a porous permeable floor plate suitable for being laid on the roof of a building such as a house, a veranda or a balcony, and a method for producing the same.

[0002]

2. Description of the Related Art Artificial turf is laid on a waterproof sheet surface, a concrete surface, or the like to improve usability and appearance on the roof of a building such as a house, a veranda or a balcony (hereinafter referred to as a roof balcony). 6-4243
As described in Japanese Patent Application Laid-Open Publication No. H10-209, a tile in which tiles are arranged on a molded resin mat is laid.

[0003] However, in the former artificial grass, Chilean
Dust, lint and the like adhere to the root portion and are difficult to remove, which is not preferable in terms of hygiene and aesthetics. In addition, the latter has a problem that pedestrians can easily slip when the tile surface is wet by rain or the like.

[0004]

An object of the present invention is to provide a porous permeable floor plate which eliminates the above-mentioned disadvantages, is excellent in usability, walking properties and appearance, and is durable, and a method for producing the same.

[0005]

According to the first aspect of the present invention, there is provided an amorphous ceramic coarse particle having a particle size of 0.50 to 1.40 mm in a weight ratio of 70 or more and a particle size of less than 0.50 mm. The present invention relates to a porous water-permeable floor plate which is made of a vitreous material and has a total weight ratio of both amorphous ceramic particles of 100 by a composition ratio of 30 or less by weight.

[0006] The invention according to claim 2 is characterized in that the particle size is 0.50 to 1.4.
The irregular ceramic particles having a weight ratio of 70 or more and the irregular ceramic fine particles having a particle size of less than 0.50 mm and a weight ratio of 30 or less have a weight ratio of 100 to 100.
Vitreous particles of 25 mm or less are added and kneaded by adding a weight ratio of 15 to 20 and water glass by a weight ratio of 10 to 20, and alcohol is added thereto and kneaded while heating at a weight ratio of 0.1 to 0.3,
Further, alcohol is added in a weight ratio of 0.1 to 0.3, and the mixture is heated and kneaded, and a granular material producing step of producing a granular material in which the surface of the water glass of the particle coating is dried, and a required amount of the granular material is formed in a mold. The present invention relates to a method for producing a porous water-permeable floor plate, comprising: a plate-like body forming step of charging the sheet into a plate-like body by pressurizing to form a plate-like body; and a firing step of firing and solidifying the plate-like body.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of a porous permeable floor plate according to one embodiment of the present invention, FIG. 2 is an enlarged sectional view of FIG. 1, and FIG. 3 is an enlarged sectional view of a granular material.

The porous permeable floorboard 10 shown in FIG. 1 is laid on a roof balcony in a required number, and in this example, is made of a rectangular plate. In addition, this porous permeable floor board 10
In addition to being laid on the floor surface of the roof balcony as it is, a lining material such as resin or rubber may be laid on the back surface of the floor plate 10 in a state of being laminated and integrated.

As shown in FIG. 2, which is an enlarged sectional view of the porous permeable floor plate 10, the porous permeable floor plate 10 is formed by bonding irregular shaped ceramic coarse particles 20 and irregular shaped ceramic fine particles 30 with a vitreous material 60. There are countless voids G for water permeability between the irregular shaped ceramic particles 20 and 30.

The irregular shaped ceramic coarse particles 20 and the irregular shaped fine ceramic particles 30 are made of crushed ceramics once fired, and are excellent in strength and quality. As the porcelain, tiles, tableware, insulators, and the like that are discarded due to defective molding or the like are preferable. By using such waste ceramics, reuse of waste and reduction of cost can be realized. Also, because of using irregular shaped ceramic particles,
Eliminating the need for complicated means for shaping the ceramic particles into a uniform shape makes it easier to grind and reuse the ceramic particles.

The irregular shaped ceramic coarse particles 20 serve as an aggregate of the floorboard 10 and have a particle size of 0.50 to 1.40 mm. When the particle size is set to be smaller than 0.50 mm, the gap G becomes small and the water permeability decreases when the floor plate 10 is formed. Conversely, when the size is larger than 1.40 mm, the floor plate 10 becomes The surface becomes rough and mottled, and not only the appearance is impaired, but also the feeling when walking barefoot becomes worse.

The irregular shaped ceramic fine particles 30 are provided near the contact portion between the irregular shaped ceramic coarse particles 20 to increase the contact area between the irregular shaped ceramic coarse particles 20 via the irregular shaped ceramic fine particles 30. Thereby, the strength of the floor plate 10 is increased. The diameter of the irregular shaped ceramic fine particles 30 is smaller than that of the irregular shaped ceramic coarse particles 20, that is, smaller than 0.50 mm.

The vitreous material 60 is made of irregular shaped ceramic particles 2
It is a binder of 0, 30 and is composed of a vitreous particle 40 and a water glass 50 which are melted and solidified. The vitreous particles 40 combine the irregular shaped ceramic particles 20 and 30 by melting and solidifying at the time of firing a plate-shaped body formed by pressing a granular molding material described later. The vitreous particles 40
Is a material obtained by pulverizing vitreous material such as a sheet glass or a glass bottle, and by using the discarded material, the waste can be reused and the cost can be reduced. The weight ratio of the vitreous particles 40 depends on the shape of the irregular shaped ceramic coarse particles 20.
And the weight ratio of amorphous ceramic fine particles 30 to 100
~ 20 is preferred. If the weight ratio is less than 15, the bonding of the irregular shaped ceramic particles 20 and 30 will be incomplete, and the strength of the floorboard 10 will be insufficient. Conversely, if the weight ratio is greater than 20, the dimensional change during firing of the plate-like body becomes large, and not only is it difficult to obtain a floor plate of a predetermined size,
Material costs increase.

The water glass 50 contains the irregular shaped ceramic particles 2
0, 30 and the surface of the vitreous particles 40 are coated, and due to the viscosity of the water glass, the irregular shaped ceramic fine particles 30 and the vitreous particles 40 are adhered around the irregular shaped ceramic coarse particles 20 to form the granular material 15. At the same time, the granular material 15 is primarily bonded during the plate-like body forming step. This water glass 5
If the weight ratio of 0 is less than 10, the irregular shaped ceramic particles 2
0, 30 and the vitreous particles 40 cannot be coated on the entire surface or the coating thickness becomes thin. Even if pressure is applied at the time of forming a plate-like body, the granular material 15 is not sufficiently bonded, and it becomes difficult to form. Conversely, if the weight ratio is greater than 20, the granular materials will stick together during kneading and become coarse, and it will take time to disintegrate the coarse material, and the amount of water contained in the whole water glass The amount increases with respect to the material 15, and it takes time to remove excess water, and the productivity is deteriorated.

Next, a method of manufacturing the floor panel 10 will be described. The method of manufacturing the floorboard 10 includes a granular material manufacturing process,
It is performed by a plate-shaped forming step and a firing step. In the granular material manufacturing process, the irregular shaped ceramic fine particles 20 having a particle size of 0.50 to 1.40 mm are mixed with the irregular shaped ceramic fine particles 30 having a weight ratio of 70 or more, preferably 70 to 80, and a particle size of less than 0.50 mm. At a weight ratio of 30 or less, preferably 30 to 2
The total weight ratio of the two irregular shaped ceramic particles 20 and 30 is set to 0, and the glassy particles 40 having a particle size of 0.25 mm or less are added to the irregular shaped ceramic particles 20 and 30 having the weight ratio of 100 by weight ratio. 15-20 and water glass 50 are added in a weight ratio of 10-20 and kneaded. Alcohol is added in a weight ratio of 0.1-0.3, and the mixture is kneaded with heating. The alcohol is further added in a weight ratio of 0.1-0. And kneading with heating to produce a granular material 15 in which the surface of the water glass 50 having a particle coating is dried.

The weight ratio of the two irregular shaped ceramic particles 20, 30 is 1
The weight ratio of the irregular shaped ceramic coarse particles 20 to
When it is set to the upper side, when it is less than 70, it becomes the floor plate 10
The gap G is reduced, and the water permeability is reduced.
is there. This water permeability and the strength of the floorboard 10
In order to make it even better, the weight of the irregular shaped ceramic coarse particles 20
Preferably, the ratio is in the range of 70-80.
The weight ratio of the irregular shaped ceramic fine particles 30 is determined by the two irregular shaped ceramics.
From the weight ratio 100 of the porcelain particles 20 and 30
It is the remaining value after subtracting the weight ratio of the particles 20.
Optimum strength of floorboard 10 by increasing the contact area between particles
To achieve this, the weight ratio of the irregular shaped ceramic fine particles 30 should be 3
It is preferably 0 to 20. The irregular shaped ceramic
The weight ratio between the coarse particles 20 and the irregular shaped ceramic fine particles 30 is 10
Produce floorboard 10 at 0: 0 and 75:25 respectively
When the bending strength was measured, the former was about 80 kgf /
cm ²The latter is about 100kgf / cm²And coarse particles
Board consisting of irregular shaped ceramic particles 20 and 30
10 is bent more than a floor plate with only irregular shaped ceramic coarse particles 20
The strength was about 25% higher.

The reason why the particle size of the vitreous particles 40 is 0.25 mm or less is that if the particle size is larger than this, the dimensional change of the plate-like body before and after firing becomes large, and the plate-like body is hardly melted during firing. This is because it is necessary to raise the temperature, which increases the cost.

The alcohol is used to separate the water in the water glass 50 and quickly remove excess water in the water glass 50. This alcohol is preferably added in two portions. The time required for the water glass coating on the surface of the granular material 15 to reach the required surface texture and dry state differs between the case where the required amount of alcohol is added at a time and the case where the alcohol is added in two portions. It took 12 minutes to add 15 portions at a time, but it took 13.5 minutes to add 0.30 weight ratio at a time. By adding it twice in this way, the drying time can be shortened. The amount of alcohol added at a time is 10% by total weight of the irregular shaped ceramic particles 20 and 30.
0 to 0.1 to 0.3 is preferable. The type of alcohol used is appropriately determined, but methanol is preferred from the viewpoint of cost and the like.

Heating at the time of kneading is for removing excess water in the water glass 50 more quickly, and it is easy to knead while blowing hot air. In that case,
Since the warm air only removes excess water contained in the water glass 50 and dries the surface of the water glass coating to such an extent that the granular materials 15 do not stick to each other, the amount of kneading and productivity are taken into consideration. When drying in a short time, set a relatively high temperature; otherwise, set a relatively low temperature.
An appropriate temperature is set.

The granular material 15 obtained by this process
As shown in FIG. 3, the vitreous particles 40 and the irregular shaped ceramic fine particles 30 adhere around the irregular shaped ceramic coarse particles 20, and the whole is covered with water glass 50. The surface of the water glass 50 on the surface of the granular material 15 is dried to such an extent that the granular materials 15 do not adhere to each other, and the inside of the water glass 50 maintains viscosity. Therefore, since the surface of the granular material 15 is dry, it is easy to handle,
The granular materials 15 are less likely to stick to each other during storage, transportation, measurement, and the like.

In the plate-like body forming step, a required amount of the granular material 15 is charged into a mold and pressed to form a plate-like body. At this time, since the inside of the water glass coating retains viscosity as described above, the granular material 15 sticks to the granular material 15 due to the water glass viscous portion inside the coating on the surface, as described above.
It can be formed into a required plate shape.

In the firing step, the plate is carried into a firing furnace, fired, and solidified. At this time, the vitreous particles 4
0 melts and solidifies and bonds between the irregular shaped ceramic particles. Thus, the permeable floor plate 10 shown in FIGS. 1 and 2 is obtained.

[0023]

An embodiment of the present invention will be described. First,
The tile waste is crushed and sieved to a particle size of 0.50.
~ 1.40mm irregular shaped ceramic coarse particles and 0.50 particle size
Less than irregular shaped ceramic fine particles. Then, 177.5 kg of the irregular shaped ceramic coarse particles, 59.2 kg of the irregular shaped ceramic fine particles, and a particle size of 0.2 of the waste plate glass pulverized material.
41.5 kg of glassy particles of 5 mm or less and 34.3 kg of JIS No. 3 water glass were charged into a mixer and kneaded for 14 minutes. At this time, the weight ratio of each raw material is as follows: irregular ceramic coarse particles: irregular ceramic fine particles: vitreous particles: water glass =
75: 25: 17.5: 14.5. Further, at 1.5 and 8 minutes after the start of kneading, 350 g (weight ratio: about 0.15) of methanol was added, respectively, and 0.5 minutes after the first methanol input and until kneading was completed. About 10
The hot air at about 70 ° C. was blown into the mixer for minutes, and the surface of the water glass film was dried, thereby producing a granular material for a water-permeable floor plate whose inside was kept viscous.

Next, 10.9 kg of the above-mentioned granular material was put into a forming mold and pressurized by a vibration press to obtain 20 t × 1
Sixteen 48 × 148 × mm plate-like bodies were manufactured, and the plate-like bodies were placed in a firing furnace, and were fired at a peak temperature of 1050 ° C. for 30 minutes to obtain a permeable floor plate.

[0025]

As shown and described above, the porous permeable floorboard of the present invention is obtained by bonding irregular-shaped ceramic particles composed of irregular-shaped ceramic coarse particles and irregular-shaped ceramic fine particles with a vitreous material. Therefore, at low cost, it is excellent in usability, walking properties, appearance, and durability.

According to the method of manufacturing a porous water-permeable floor plate of the present invention, glassy particles and water glass are added and kneaded to irregularly shaped ceramic particles composed of irregularly shaped coarse ceramic particles and irregularly shaped fine ceramic particles. Adding alcohol thereto, kneading while heating, further adding alcohol, kneading while heating, and producing a granular material in which the surface of the water glass of the particle coating is dried, and a required amount of the granular material Into a mold and pressurized to form a plate-shaped body, and a firing step of firing and solidifying the plate-shaped body. It is possible to easily obtain a porous permeable floor plate excellent in properties, appearance and durability.

[Brief description of the drawings]

FIG. 1 is a perspective view of a porous permeable floor plate according to one embodiment of the present invention.

FIG. 2 is an enlarged sectional view of FIG.

FIG. 3 is an enlarged sectional view of a granular material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Porous water-permeable floor board 15 Granular material 20 Irregular ceramic coarse particle 30 Irregular ceramic fine particle 40 Glassy particle 50 Water glass 60 Glassy material G Void

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[Procedure amendment]

[Submission date] February 3, 1999 (1999.2.3)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Figure 2

[Correction method] Change

[Correction contents]

FIG. 2

Claims (2)

[Claims] An amorphous ceramic coarse particle having a particle size of 0.50 to 1.40 mm has a weight ratio of 70 or more, and an amorphous ceramic fine particle having a particle size of less than 0.50 mm has a weight ratio of 30 or less.
A porous water-permeable floor plate which is made of a glass material and has a total weight ratio of the two amorphous ceramic particles of 100. 2. A weight ratio of 10 to 70, wherein the weight ratio of amorphous ceramic coarse particles having a particle size of 0.50 to 1.40 mm is 70 or more, and the weight ratio of amorphous ceramic fine particles having a particle size of less than 0.50 mm is 30 or less.
0 amorphous ceramic particles, glassy particles having a particle size of 0.25 mm or less in a weight ratio of 15 to 20 and water glass in a weight ratio of 10 to 10
20 and kneaded, and the alcohol is added in a weight ratio of 0.1 to
0.3 adding and kneading while heating, further adding alcohol in a weight ratio of 0.1 to 0.3, kneading while heating, and producing a granular material in which the surface of the water glass of the particle coating is dried is produced. A porous permeable floor plate comprising: a plate-like body forming step of charging a required amount of the granular material into a mold frame and pressing to form a plate-like body; and a firing step of firing and solidifying the plate-like body. Manufacturing method.