JPS63144143A - Crystallized glass building material having colored pattern - Google Patents

Abstract

PURPOSE:To obtain a crystallized glass building material having standardized colored spot pattern and suitable as an exterior and interior materials for building, by mixing colored and colorless powdery glass raw materials, forming the mixture and heat-treating the product to effect the crystallization. CONSTITUTION:Colored glass raw material powder is mixed with colorless glass raw material powder and the mixture is formed and crystallized by heat- treatment to obtain a crystallized glass having spot pattern. The number of the spots is 2-300 per 4mm<2> excluding the spots smaller than 0.00045mm<2>, the average area of pots is 0.0015-2.00mm<2>, the diameter of the spot calculated by converting the average area of spots to a circle is 0.08-1.6mm and the areal ratio of the spot is 5-50%.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a crystallized glass building material having a spotted pattern, which is used as an exterior material and an interior material for construction.

(Prior art) Conventional crystallized glass building materials are made by rapidly cooling molten glass by water cooling, etc., and then crushing it into appropriate sizes to form glass particles, which are then either accumulated in a formwork that becomes a flat plate, or made into rolls. After forming a flat plate by a heat treatment, the glass bodies are fused together and crystallized at the same time to obtain a building material of a flat crystallized glass plate (Japanese Patent Publication No. 55-29018).

On the other hand, flat plates or square timbers for building materials cut from natural marble have large wavy or layered patterns, exhibit a unique aesthetic appearance, and are used as high-quality building materials.

(Problem to be solved by the invention) However, the former crystallized glass building material has a thickness of 8 to 20 mm.
sn, approximately 900 x 900 W in size, it is a pure white, almost plain material containing a beige, brown, etc. coloring agent, and the polished surface or side surface is made of a glass-like material made of raw material by the light incident inside. It is reflected at the grain boundaries of the body, and although a few grain boundaries can be seen, the plate as a whole is considered to be a plain material. However, although this glass building material is physically superior to natural marble, it is a single, uniform, plain material, and aesthetically inferior to natural marble.

On the other hand, the latter type of natural marble has different patterns depending on the raw stone, and when used on a large wall, it is not economical to select a board with the same pattern from a large number of original boards to match the pattern, so it is not economical and it is necessary to secure a large number of particularly large boards. had the disadvantage of being very expensive.

Therefore, in view of the above-mentioned problems, the present inventors have
As an improved method for manufacturing crystallized glass building materials described in Publication No. 5-290118, Japanese Patent Application No. 61-16064 was previously published.
I just made a proposal to No. 0. Based on this manufacturing method, an excellent crystallized glass building material with a highly variable spotted pattern can be obtained, but when manufacturing this building material, it was not intended to adjust the particle size of the raw materials, so There was a problem in that it was not possible to provide building materials with a spotted pattern.

The purpose of this invention is to provide a product in which the speckled pattern of crystallized glass building materials obtained by the manufacturing method of the above-mentioned Japanese Patent Application No. 160640/1984 and related inventions of the manufacturing method conforms to certain standards. It is.

(Means for Solving the Problems) As a means for achieving the above object, the present invention provides, after mixing and molding colored and colorless vitrified raw material powders,
Crystallized glass with a speckled pattern exposed by crystallization heat treatment, the speckled pattern having a visual field of 4 mm2 and excluding specks of 0.00045 am'' or less, the number of specks = 2 to 300. average area of spots 70
．． 0.015 to 2.00 mm'', the diameter when the average area of the spots is converted into a circle?0.08 to 1.6 mm, and the area ratio of the spots is 5 to 50%.

(Example) The present invention relates to a colored patterned crystallized glass building material, and will be explained from an example of its manufacturing method.

First, the colored raw material powder used in the present invention has a weight percentage of 5i (h: 40-60%, A7,0.: 5-20%).
, CaO: 25-45%, 5in2+ N103
+ CaO>85% and contains 15% or less of colorant.

The above-mentioned colored raw materials are mainly used to impart strength and hardness to products through crystallization (mainly wollastonite: CaO・Sing) through heat treatment. It is about change.

Next, the colorless raw material powder used in the present invention is 5i02:5
5-75%, /Vz03: 0-15%, CaO: 5-
15%, NazO+ KzO: 10-20%, and 5i02 +/Vz02 +CaQ+ NazO+ K
Contains ZO≧90%.

The main purpose of the above-mentioned colorless raw materials is to fuse and densify the raw materials at a lower temperature before crystallization when heat-treating the press-formed body (although the colored raw materials described above also have this function), At the same time, after densification, some crystals are generated, which gives strength and hardness.

The reasons for limiting the colored and colorless raw material components will be described below.

Si02: 40-60% If it is less than 40%, the crystallization rate becomes too fast, and the fusion and densification during heat treatment of the press-formed product tends to be insufficient. On the other hand 6
If it exceeds 0%, the amount of crystals decreases, resulting in insufficient strength and hardness.

/Vz(h: 5-20% If it is less than 5%, the crystallization rate becomes too fast and the product tends to be insufficiently densified. If it exceeds 20%, it becomes difficult to precipitate crystals uniformly.

CaO: 25-45% If it is less than 25%, the amount of crystals will be small, and if it exceeds 45%, the crystallization rate will be too fast and the densification of the product will be insufficient.

Colorant 2 0.5-15% As a coloring agent, Fe can be used depending on the desired color tone.

Mn+ Cr+ Cot Cu, Nt, TL V+
An oxide of Nd+ is used alone or in combination, but if it is less than 0.5%, the effect of the coloring agent is hardly recognized.

On the other hand, if it exceeds 15%, there will be adverse effects such as a decrease in the strength of the product.

SiO2+ Ajz03 +CaO: 85% or more Set to 85% or more as a condition for maintaining appropriate physical properties of the raw material glass.

<Colorless raw material> 5ifh: 55-75% If it is less than 55%, crystallization will be rapid, and in order to maintain the denseness of the product, the Sin content as a raw material must be 55% or more. If it exceeds 75%, the viscosity of the glass becomes too high, which also causes problems in terms of density.

N1ps: 0 to 15% If it exceeds 15%, the viscosity of the glass increases and the densification of the product tends to be insufficient.

CaO: 5 to 15% If it exceeds 15%, the viscosity of the glass increases and the product tends to be insufficiently densified. If it is less than 5%, crystallization will hardly occur and the strength and hardness will be insufficient.

NazO+KzO: 10-20% Has the effect of controlling crystallization, and if it exceeds 20%, crystallization slows down, resulting in a deficiency in strength and hardness. If it is less than 10%, crystallization will be rapid, resulting in insufficient densification of the product.

s+o, +Nto, +CaO+NazO+KzO:
90% or more The condition for properly maintaining the physical properties of the raw material glass is 90% or more.

Note that the composition must be set such that the softening point of the colored raw material is at least 100° C. higher than the softening point of the colorless raw material.

Next, the particle size of the raw material powder and dense molding will be described.

Colorless and colored raw materials are obtained by adjusting and melting the raw materials for each of the above-mentioned components so as to have a predetermined composition, and then rapidly cooling and crushing this by a method such as water pulverization to form glass-like particles. Of course, a material having a specific range of component composition and already in the form of glass may be crushed by an appropriate means to form small bodies.

The glassy particles thus obtained are further pulverized using, for example, a ball mill, and at this time the colorless raw material is made into fine particles of 200 mesh or less. However, 20
There is no problem even if 10% or less of 0 mesh or more is included.

Colored raw materials are less than 10mesh, 10-200mesh
The powder h preferably accounts for 20% or more.

The presence of particles coarser than 10 mesh tends to cause bubbles inside the product, leading to a decrease in strength.
The reason for including 0 mesh particles is to make a spotted pattern appear as mentioned above, and the reason why the particles are 20% or more is because if the content is less than 20%, colored and colorless raw material powders are mixed and sintered. This is because the distribution of the speckled pattern in the product becomes sparse and the product does not substantially have the appearance of a speckled pattern.

The colorless and colored raw material powders thus obtained are mixed, then placed in a molding frame and molded by pressure or vibration molding. In this case, a dense molded body containing a large amount of fine powder of 20Qmesh or less makes it easier to fuse and integrate the powder particles at low temperatures and make it denser, but in order to make many spot patterns appear, It is necessary to increase the number of colored raw material particles of ~200 mesh. Therefore, it is necessary to balance the particle size, but in the present invention, care has been taken in the composition of the colored and colorless raw material powders so that crystallization will be easy after the two are fused and integrated.
If about 50% of the following fine particles are contained, fusion and integration and densification can be performed at low temperatures, and crystallization can be performed by raising the temperature thereafter.

The purpose of setting the compact density to 50% or more of the true density is to ensure integral densification of particles at low temperatures and to suppress the amount of shrinkage of the compact during sintering.

When molding a dense molded body having a true density of 50% or more, the mixed powder is placed in a compression molding frame and pressurized. The pressure is 2
0 kgf/cd or more is appropriate.

When using vibration molding, place it in a vibration molding frame for 30 to 180 hours.
Dense packing is performed by applying z vibration. This is 3011
This is because, below 180 Hz, the effect of dense packing is small, and above 180 Hz, there is an effect of separating fine particles and coarse particles. As described above, when a binder is used, there is an effect that water added for kneading is appropriately floated on the molded body at the above-mentioned vibration frequency and separated.

Note that vibration molding is an advantageous molding method even when the molding frame becomes large, that is, even when the molded product becomes large, especially in that it is necessary to use a large vibrating device.

When mixing glass raw material powders, it is effective to add a small amount of a binder such as a polyvinyl alcohol (P, V, A,) solution to facilitate molding.

Appropriate selection of the binder not only makes molding easier, but also prevents damage during transportation of dense molded products (Siraji).
It is possible to impart strength to the plain ground that can withstand shrinkage during sintering.

For example, montmorillonite binder (mainly composed of montmorillonite, SiO□: 60-80%, N20°: 5
~20% content) and alumina cement binder (#z (h
: 45-80%, CaO: 18-40%, 5iOz: 1
A good example of this is 5% (containing ~5%), and the amount added is set to the strength that Shiraji needs, that is, to prevent damage during transportation and to withstand shrinkage during sintering. An appropriate amount is such that a bending strength of 7 kgf/ca1 or more can be obtained, and which does not substantially affect the composition of the glass.

Above, examples in which a binder is used have been described, but examples in which a binder is not used are listed below.

i. Mix the colored and colorless raw material powders and mix it with 500%
After heating to ~700℃, put it into the mold and heat it to 5~300℃.
A dense molded body is obtained by press molding at a pressure of kgf/ad.

ii. Mix colored and colorless raw material powders and put them into a mold at a temperature of 500°C or less, then heat both the mold and raw materials to a temperature of 500 to 700°C,
Press molding is performed at a pressure of ~300 kgf/cffl to obtain a dense molded body.

iii. Colored and colorless raw material powders are mixed and put into a mold at a temperature of 500°C or less, then only the surface of the raw materials is heated to a temperature of 500 to 700°C, and then heated to a temperature of 5 to 300°C.
Press molding is performed at a pressure of 11 kgf/cI to obtain a dense molded body.

iv. Colored and colorless raw material powders are mixed and put into a mold heated to 500 to 700 °C at a temperature of 500 °C or less,
Press molding is performed at a pressure of 5 to 300 kgf/cal to obtain a dense molded body.

In addition, the molding temperature of the molded body is 400 to 800°C, preferably 500 to 700°C.

As shown in the heat treatment curve of FIG. 1, the heat treatment of the dense compact obtained as described above includes low temperature treatment (first stage treatment section a-a) for integral densification of particles, followed by A high-temperature treatment (second stage treatment section bb) for crystallization is performed.

Figure 2 is a "crystal growth rate vs. temperature" curve in heating a dense compact, where s and p are softening points, M and P are melting points,
The low-temperature treatment is performed at a temperature above the softening point and below the temperature at which the crystal growth rate increases.

In this low-temperature treatment, the unification and densification of particles mainly occur due to softening and fusion of the colorless raw material powder, and the treatment temperature is low, and in addition, the composition of each individual raw material powder is of a type that suppresses crystallization. Even if a nucleating agent is included as a component, it does not cause the same adverse effects as in the accumulation method, but rather facilitates crystallization in the subsequent heat treatment.

After the first stage low temperature treatment, the second stage high temperature treatment is performed by raising the temperature to a temperature range in which the crystal growth rate increases as shown in FIG. At this point, the integrated densification of colorless and colored raw material particles and the integrated densification of colored raw material particles have already progressed.
Crystallization also occurs, and crystal precipitation and growth are particularly active at the fused interface between colorless and colored raw material particles, since the integration of the two creates a composition that facilitates crystallization.

Note that the heat treatment temperature (crystallization temperature) is 800 to 1000°C.

The colored patterned crystallized glass obtained in the above manner has a distributed pattern of colored spots, and the spotted pattern may vary depending on the particle size, amount, mixing ratio, etc. of the colored raw material particles, such as a tight spot pattern, a lumpy spot pattern, etc. The shape of the pattern, the density of the distribution, the density of the spotted pattern, etc. can be changed in various ways, but in particular, in the present invention, crystallized glass (
In order to provide building materials), the following items are stipulated, and it is possible to supply a large amount of crystallized glass (building materials) with approximately the same pattern that meets these rules.

That is, the above specified items are the number of spots (N), the average area of spots (SUM ABG), the diameter when the average area of spots is converted into a circle (DIA AVG), the area ratio of spots (8), and the count. Small spot area (MIN A) of 5
The numerical ranges are explained below with reference to Fig. 3.

■ Area of small spots not counted (MIN A) ≦0.000
45 Crane 2 Values outside the range cannot be identified as speckled patterns.

■ Number of spots (N) = 2 to 300 (within 4+u'' visual field) Even if N is less than 2 or more than 300, no speckled pattern will be obtained.

■ Average area of spots (SUM AVG) =O, 0O
15 to 2.00 mm2 Outside this range, no speckled pattern will be formed.

■ Diameter when the average area of spots is converted into a circle (DIA
AVG) -0.08~1.6 1 seal■
Determined from the term.

■ Area ratio of spots (A) = 5 to 15% Outside this range, spots will not appear.

In Figure 3, the code 1 is the base, 2 is the spot that is counted in the average area, and 3 is the small spot that is not counted.The above area ratio A is calculated by the following formula. It will be done.

Next, specific examples of the present invention will be shown.

<When using a binder> The colored and colorless raw materials used in the examples had the compositions shown in Table 1. The raw materials containing each component were melted at 1500°C, and then soaked in water. colored and colorless glassy bodies were obtained, respectively. Since the colored raw material is melted at 1500° C. and pulverized as described above, the FeO/FezO+ ratio is high, and therefore the granulated raw material has a green-black color.

(FeO+ Fe2O, is a coloring agent and also acts as a nucleating agent).

Table 1 Composition of colored and colorless raw materials (w, tX) The glassy bodies were ground by a ball mill and sieved to obtain powder having the following particle size.

Colored raw material powder -・-・-・-・・-10~200 m
esh colorless raw material powder・----200mes
h The above colored raw materials classified by particle size are 3tJ.
The amount determined depending on the type of I "spotted pattern" was blended into colorless raw materials to make various dense molded products.

The dimensions of the dense molded bodies are 100xlOOx25 (1
m).

■ Add a small amount of P, V, A solution as a binder to the above raw material powder and mix well, then 30 kg f / cnf
A dense molded body was obtained by pressure molding using a pressure of .

■ Add 3% of montmorillonite type binder as a binder to the above raw material powder together with 15% of water and mix well. A dense molded body was obtained by pressure molding using a pressure of . Its bending strength is 10kgf/cfl
It was l.

■ Add 3% alumina cement binder as a binder to the above raw material powder together with 15% water, mix well, and then press-form at a pressure of 30 kgf/ci to obtain a dense compact. Ta. Its bending strength is 11 kg f/
It was cnf.

■ 3% montmorillonite binder as a binder was added to the above raw material powder along with 15% water, and after kneading well, vibration molding was performed by applying 6082 vibrations to obtain a dense compact. . Its bending strength was 11 kgf/cat.

The heat treatment of the dense molded bodies mentioned above was performed at 150 °C/h.
When the temperature was raised to 750''C, held at the same temperature for 30 minutes, and then held at 900'C for 3 hours, wollastonite crystals were precipitated.

The bending strength of all products was 630 kgf/cal.

FIG. 4 is a heat treatment curve for the above example.

If no binder is used...already mentioned (i) to (iv)>
(i) 1) Raw material chemical composition: (weight% display) SiO2/V!
03 CaOMnOMgOFeONatOK20 Colored A
55.2 7.7 29.8 2.0 0.8 3
．． 7 - -Colorless B 72.1 1.8 8.8 -
4.5 - 11.51.02) Raw material particle size: A 20mesh ~ 50mesh: 30 ~ 40
χ200mesh or less: 50-60X B 200mesh or less: 98% or more 3) Raw material ratio: A:B -tit4) Molding dimensions:
300X300 0.2 mm thickness After press molding under these conditions, it was slowly cooled to room temperature, and the apparent density and bending strength were measured.

rApparent density: 1.68 g/am'f transverse bending strength 1
3.8 kg/ad This strength is sufficient to maintain the molded shape until heat treatment (10 kg/ad)
It is OK if the bending strength is 1 g/co1 or more.

When this molded product is heat-treated at 900°C for 4 hours, crystals mainly composed of wollastonite precipitate, and the material properties are as follows: Apparent density: 2.34 g/ctm2r Breaking strength:
525kg/c11! A water absorption rate of 70.28% was obtained.

This value is a value that is satisfied as a building material.

(ii) 1) Raw material chemical composition: (weight% display) Sing Al
tos CaOMnOMgOFeONazOKtO Colored A 53.0 8.7 31.2 3.0 0.5
2.7 - -Colorless B 70', 8 1.6 9.1
- 4.3 - 10.81.22) Raw material particle size: A; 20mesh to 50mesh is 30 to 40χ2
00mesh or less is 50-60χ B; 200mesh or less = 98% or more 3) Raw material ratio: Al -1:1 4) Molding dimensions: 300X300X25 (lj)7
) Press pressure crab 50kg/ad 8) Atmosphere: normal temperature air 9) Mold coating: Graphite coating 0.2m thickness 10) Heating temperature after putting raw materials into the mold: 580t' After press forming under these conditions The sample was slowly cooled to room temperature, and its apparent density and bending strength were measured, and the following values were obtained.

r apparent density: 1.71 g/cm' and bending strength = 53.0 kg/cj This strength is sufficient to maintain the molded shape until heat treatment (1
It is OK if the bending strength is 0 kg/ad or more.

When this molded product is heat-treated at 900°C for 4 hours, crystals mainly composed of wollastonite precipitate, and the material property values are: Apparent density: 2.33 g/c+a"r Breaking strength?
A water absorption rate of 519 kg/c+dt: 0.32% was obtained. This value is a value that is satisfied as a building material.

(iii) 1) Raw material chemical composition (ffi amount % amount water display iOl A7
gOI CaOMnOMgOFeONatOKo.

Colored A 49.810.8 33.1 1.2 0.
8 3.9 - -Colorless B 71.2 2.3 9.
1-3.8-9.92.22) Raw material particle size: A; 20o+esh ~50mesh is 30~40χ
200mesh or less is 50-60χ B; 200n+esh or less = 98% or more 3) Raw material ratio: A:B = 1:14) Molding size: 300X
300 X25 (l1)7) Press pressure crab 30kg
/cd 8) Atmosphere: Normal temperature air 9) Mold coating: Graphite coating 0.2mm thickness 10) Heating surface temperature after feeding raw materials into the mold: 650℃ 11) Raw material surface heating method: Electric heat radiation book After press-molding under the following conditions, it was slowly cooled to room temperature, and the apparent density and bending strength were measured, and the following values were obtained.

(Near the top surface) Apparent density: 1.81 g/ctm3 Breaking strength:
62.5 kg/cd This strength is sufficient to maintain the molded shape until heat treatment (it is OK if the bending strength is +r/cd or more in 10).

When this molded product is heat-treated at 900°C for 4 hours, crystals mainly composed of wollastonite precipitate, and the material properties are as follows: Apparent density: 2.32 g/crm3 Breaking strength:
A water absorption rate of 530 kg/cit and 0.18% was obtained. This value is a value that is satisfied as a building material.

(iv) 1) Raw material chemical composition (weight% display) Sing Ajz03 CaOMnOMgOFeONa
zOKzO Colored A 52.8 8.2 30.3 2
．． 5 1.2 2.9 - -Colorless B 71.8 1
．． 8 9.2 - 4.0 - 11.80.92) Raw material particle size: A; 20mesh - 50+wesh is 30 - 40χ2
00+++esh or less is 50~60χB; 200me
98% or more below sh 3) Raw material ratio: A:B =
1:14) Molding dimensions: 300X300X25 (
5) Raw material heating temperature: 40 ℃ 6) Mold preheating temperature: 650 ℃ (However, the upper mold is 40 ℃) 7) Press pressure crab 30 kg/cd 8) Atmosphere: normal temperature air 9) Mold coating: Graphite coating mold 0.2 thickness 10) Elapsed time from input of raw materials to start of press molding: 25 seconds After press molding under these conditions, slowly cool to room temperature, measure apparent density and bending strength, I got the following values.

(Near the bottom surface) r Apparent density: 1.62 g/tri 3 R bending strength: 14.5 kg/tri This strength is sufficient to maintain the molded shape until heat treatment (10 kg/c
It is OK if it has a bending strength of rA or higher).

When this molded product is heat-treated at 900°C for 4 hours, crystals mainly composed of wollastonite precipitate, and the material properties are as follows: Apparent density: 2.36 g/cps"' Breaking strength:
A water absorption rate of 605 kg/aJt: O, IS% was obtained. This value is a value that is satisfied as a building material.

Specific examples of the method for manufacturing crystallized glass building materials according to the present invention are as described above, but in particular, the present invention standardizes the spotted pattern by adjusting the particle size of the raw materials in the manufacturing method. , in order to do so, the previously mentioned old NA, N,
SUM, AVG, DIA, AVG, A (7
)5 items were managed, making it possible to provide crystallized glass building materials with approximately the same pattern.

The following Table 2 shows the products obtained from the manufacturing method using a binder in the above specific examples! 5 to 8 are diagrams showing the pattern states (50 times magnification).

Table 2 (Effects of the Invention) The colored patterned crystallized glass building material according to the present invention has high strength, does not contain air bubbles inside the product, and exhibits a highly variable spotted pattern. Now, set the spot pattern to 4 dragons 2, exclude spots of 0.00045 dragon 2 or less, set the number of spots to 2 to 300, and set the average area of spots to 0.
．． 0015 to 2.0 (h 2, the diameter when the average area of spots is converted into a circle is defined as 0.008 to 1.6 fins, and the area ratio of spots is 5 to 50%, and this regulation This makes it possible to supply large quantities of standardized building materials with approximately the same pattern, making it possible to provide superior architectural exterior and interior materials without the uneconomical costs of matching patterns, such as with marble. It became.

[Brief explanation of the drawing]

Figure 1 is a heat treatment curve of a dense molded body during the production of the crystallized glass building material according to the present invention, Figure 2 is a crystal growth rate vs. temperature curve during heating of the same dense molded body, and Figure 3 is a spotted pattern of the building material of the present invention. Figure 4 is an example heat treatment curve for the manufacturing method using a binder, and Figures 5, 6, 7, and 8 are respectively obtained by the manufacturing method using a binder. This figure shows the pattern of the building material of the present invention. Patent Applicant: Kubota Iron Works Co., Ltd. Figure 7 Figure 2 → Saiyu Figure 3 Figure 4 Figure 1 → Fermentation Figure 5 Figure 6 Figure 7 x5) Figure 8

Claims (3)

[Claims] (1) Crystallized glass in which colored and colorless vitrified raw material powders are mixed and molded and then subjected to crystallization heat treatment to reveal a spotted pattern, and the spotted pattern is 4 mm in diameter.
In the visual field of ^2 and excluding spots of 0.00045 mm^2 or less, number of spots: 2 to 300 Average area of spots: 0.0015 to 2.00 mm^2 Convert the average area of the spots into a circle A colored patterned crystallized glass building material characterized by having a diameter when flattened: 0.08 to 1.6 mm and a spot area ratio of 5 to 50%. (2) Colored raw material powder is SiO_2:4 in weight percentage
0-60%, Al_2O_3:5-20%, CaO:2
5-45%, SiO_2+Al_2O_3, +CaO
>85% and contains 15% or less of colorant, colorless raw material powder is SiO_2: 55-75%, Al_2O_3
:0~15%, CaO:5~15%, Na_2O+K_
2O: 10-20% and SiO_2+Al_2O_
3+CaO+Na_2O+K_2O≧90%, and the composition is set such that the softening point of the colored raw material powder is at least 100°C higher than the softening point of the colorless raw material powder, according to claim 1. A crystallized glass building material with colored patterns. (3) The colored patterned crystallized glass building material according to claims 1 and 2, wherein the crystallized glass is mainly precipitated wollastonite crystals.