KR900004036B1 - Non-burning building material - Google Patents

Abstract

Unbaked ceramic tile-like shaped cement type building material comprises 93-77 wt.% alumina cement, 3-10 wt.% at least one of montmorillonite, acid white clay, bentonite, 3-10 wt.% at least one of zirconium oxide, magnesia, 0.5-3 wt.% at least one of alkali or alkali earth metal stearate and 1-4 vol.% aggregate to the stearate, sometimes 0.3-5 wt.% mineral fiber. The material has a good surface glossiness, hardness and reduced water absorbability.

Description

Unbaked Building Material of Alumina Cement System

The present invention is a form molding of the mortar composition of the alumina cement system, and although it is not a plastic product such as a ceramic tile but an unbaked form molding, it has an excellent and attractive surface gloss like ceramic tiles, and is also excellent. The present invention relates to an unfired building material of an alumina cement system such as ceramic tiles, which exhibits strength, low water absorption, is excellent in strength, acid resistance, heat resistance, weather resistance, and the like and is very useful in a wide range of fields.

More specifically, the present invention is at least one selected from (1)-(4) (1) 93-77 parts by weight of alumina cement (2) montmorilonite acid clay and bentonite among 100 parts by weight in total. Composition 3-10 parts by weight, (3) at least one kind selected from zircon oxide and magnesia (3) composition comprising at least one type 0.5-3 parts by weight selected from alkali metal salts and alkaline earth metal salts of stearic acid A die formed of a mortar composition containing about 1 to about 4 parts by weight of aggregate (B) with respect to 1 part by weight of (A) and the composition (A), wherein the ceramic tile is an unfired product. It relates to an unbaked building material of an alumina cement system such as.

Conventional so-called ceramic tiles are used for a wide range of building materials because of their excellent surface gloss and excellent hardness, water resistance, strength and other physical properties.

However, since the product is completed only through the firing process, it is inevitable to be cumbersome and expensive on the firing operation and manufacturing apparatus.

In addition, in large-sized products and ceramic tile products having a complicated shape, there are many restrictions on their use because of disadvantages such as being complicated and expensive.

The inventors of the present invention have been studied to develop a satisfactory ceramic tile-like building material that can solve the disadvantages and problems inevitable in the ceramic building materials.

As a result, an excellent and attractive surface gloss such as ceramic tiles, despite being an unfired product, which is only a die-molding alumina cement-based mortar composition containing a composition (A) and aggregate (B) of a specific composition. In addition, it has been invented to be able to form an unbaked building material such as a ceramic, which exhibits excellent hardness, low water absorption, and has satisfactory physical properties in terms of strength, acid resistance, heat resistance, and weather resistance.

According to the results of the present inventors, unfired building materials such as ceramics can be easily produced by the same method as a molded hardened material of a mold, and thus, any type of ceramic building materials can be manufactured, operated, apparatused and priced. In addition, there is an advantage that it can be provided easily and at a low price. Furthermore, in the case of ceramic tiles, a large product or a complicated shape product which is inevitably more complicated and expensive, are also industrially very easy and inexpensive. It has been found that there is an advantage that can be manufactured easily.

In addition, since the form molding can be freely colored in the required color tone only by blending a suitable pigment, it is not limited to the change of color tone by firing as in the case of ceramic building materials. It has been found that there is an advantage in that the strength and weight can be selected and changed depending on the purpose of use as a lighting building material, which can be easily adjusted and changed as needed.

Accordingly, an object of the present invention is a form molding of a mortar composition and, despite being an unbaked molding, an unbaked form such as a ceramic tile of an alumina cement system having excellent, attractive_surface gloss, and excellent physical properties such as a ceramic tile. To provide building materials.

The objects and other objects and advantages of the present invention will become more apparent from the following.

The unbaked building material, such as the ceramic tile of the alumina cement system of the present invention, is about 1- to 100 parts by weight of the composition (A) and (1) of the composition (A). It is characterized in that it is an unfired molding as a form-forming rule of the alumina cement-based mortar composition containing about 4 parts by weight of aggregate (B). (1) 93-77 parts by weight of alumina cement (2) 3-10 parts by weight of at least one type selected from montmorillonite, acidic clay and bentonite (3) 3-10 parts by weight of at least one type selected from zircon oxide and magnesia (4) 100 parts by weight of 0.5-3 parts by weight of at least one kind selected from alkali metal stearates and alkaline earth metal salts.

In the above-mentioned composition (A), when the amount of the component of (1) becomes excessively small beyond the above-mentioned range, physical properties such as compressive strength are generally lowered, and when the amount is excessively large, as a result, the composition (A Since any of (2)-(4) in the figure is reduced and adverse effects are caused, it should be appropriately selected in the above-described range.

In addition, in the above-mentioned composition (A), when the amount of the component of (2) becomes excessively small beyond the above-mentioned range, there exists a tendency for the density of unbaked building materials, such as an alumina cement type ceramic tile, to become low, and also excessive If it becomes too much, since hardness falls, it selects suitably in the above-mentioned range.

In addition, in the above-mentioned composition (A), when the amount of the component of (3) is excessively small beyond the above-mentioned range, the tendency to increase the absorbency occurs and is bad, and when the amount is excessively large, other components such as (1) are reduced. Since it is a result that adversely affects the strength and the like is selected appropriately in the above range.

In addition, if the amount of the component (4) in the above-mentioned composition (A) is excessively reduced beyond the above-mentioned range, a defect is likely to occur in the surface of the unbaked building material such as an alumina cement-based ceramic tile, and excessively If it increases, since the intensity | strength will arise, it will select suitably in the range mentioned above.

In addition, these components (1)-(4) cooperate with each other to combine the excellent properties of the unbaked building material of the alumina cement system, such as the ceramic tile of the present invention, and are mutually influenced and formed, so that the action of these components is collectively. Although it cannot be explained, it is possible to easily select and set a composition suitable in advance to have the necessary properties by combining and selecting within the range of each component amount mentioned above.

In the composition (A), the component (2), the component (3), and the component (4) are not limited to one kind but may be used in various ways, respectively. You will need to use a total amount that does not exceed the amount of.

For example, in the case of combining two kinds as the component (2), the total amount of the two kinds is combined so as to be in the range of 3 to 10 parts by weight. As an example of (4) component, sodium stearate, potassium stearate carbonate, magnesium stearate, potassium stearate, etc. can be illustrated, for example.

The mortar composition in the present invention comprises composition (A) as described above and about 1 to about 4 parts by weight of aggregate (B) relative to 1 part by weight of the composition (A).

As such aggregate (B), various aggregates generally used in a mortar composition can be used, and arbitrary aggregates of natural and artificial can be used.

In addition to ordinary aggregates, lightweight aggregates may be used to control the weight of unbaked building materials such as ceramic tiles of the present invention.

Such aggregates are well known and can be used in the present invention.

For example, aggregates composed mainly of expanded rock, fly ash, lightweight aggregates mixed with gravel from the blast furnace, perlite (artificial light aggregate), volcanic ash (natural light aggregate), etc. It can be exemplified, and by appropriately mixing these and aggregates such as sand, gravel from ordinary rivers can be adjusted the weight (control of the unit volume weight) of the unbaked building material, such as the ceramic tile of the present invention.

In the present invention, the mortar composition may include another additive.

Examples of such other additives include colorants such as pigments, mineral fibers such as glass wool, rock wool, and the like.

The addition amount can be appropriately changed as long as it does not adversely affect the excellent surface gloss and physical properties of the unbaked building material such as the ceramic tile of the present invention, for example, about 0.5 to about 5.0 weight depending on the weight of the composition (A). Additive amounts such as% colorant, about 0.5- about 3 weight percent mineral fibers can be exemplified.

Blending mineral fibers helps to improve the bending strength. At this time, even if it is added in excess of about 3% by weight, there is no problem, but the bending strength is not further improved by it, so about 3% by weight is sufficient.

The unfired building material of the alumina cement system such as the ceramic tile of the present invention includes about 1-4 parts by weight of aggregate (B) with respect to 1 part by weight of the composition (A) of the alumina cement system as described above. An appropriate amount of water, for example, about 3 parts by weight of aggregate (B) and about 1.5 parts by weight of water, is added to a suitable mortar to a mortar component that may contain additional ingredients. It can form by pouring and shaping | molding. Formwork apparatus itself is well known and can be used in the present invention.

Generally, it is allowed to flow into the formwork and, for example, stand still for about 8 hours before separating the formwork.

When forming formwork of an unbaked building material of an alumina cement system such as the ceramic tile of the present invention, it is particularly preferable to use formwork having a smooth finish on the form surface in contact with the molding surface.

For example, an arbitrary mold is placed on a plate glass plate and the mortar composition of the present invention is poured into the mold so as to have a required thickness to obtain an unfired tile plate of an alumina cement system such as a ceramic tile.

If various forms of formwork are used instead of plate glass, roof tiles, pumice stones, and flower pots can be easily manufactured.

The unfired building materials of the alumina cement system such as the ceramic tile of the present invention are useful in a wide range of building materials, such as high-grade bricks, tiles, tiles, fence blocks, house interiors, exterior tiles, pumice, flower bed bricks, flower pots. It can be used in a wide range from the use of such as to the building material of high-rise building.

Hereinafter, various forms of the embodiments of the present invention will be described in more detail with reference to the Examples together with the Comparative Examples.

Example 1-5 and Comparative Example 1-5

To each of the compositions of the composition shown in Table 1 described later, ordinary aggregates (B) (gravities of 0-5 mm in particle size, specific gravity of 1.5 t / m 3 or more) were mixed at a ratio of A: B = 2: 8 (capacity parts). 20 parts by weight of water is added to 100 parts by weight of the mixture, and mixed and kneaded, and poured into three successive dies of length: 4 cm, width: 4 cm, and length: 10 cm, respectively, for measurement of uniaxial compressive strength, and mirror reflectance (surface of the molding) ), Absorption rate, hardness and number of bubbles on the surface were measured by pouring into a tile formwork (length form: 8 cm, width: 13 cm, thickness: 2 cm) and form a hardened product of tile shape. Got. Table 1 shows the results of the tests for the uniaxial compressive strength (7 days), mirror reflectance (surface molded), water absorption, hardness, and number of bubbles shown on the obtained molded product.

TABLE 1

Note: Absorption rate = (weight-dry weight after water infiltration for 24 hours) / dry weight

Hardness: Fluorite = 4, Apatite = 5: Suspite = 6, Quartz = 7

Number of bubbles: Number of bubbles remaining in the area of the mold bottom (l0cm × 20cm)

Example 6-10 and Comparative Example 6-10

In Example 1-5 and Comparative Example 1-5 mentioned above, instead of the ordinary aggregate (B), the light aggregate (B) (perlite, specific gravity 1.0 or less) was replaced by A: B = 25: 75 (capacity part). Except for being used, it carried out similarly to Example 1-5 and Comparative Example 1-5, and obtained the cured molding of tile shape.

The results were approximately the same as those of Table 1 except that the uniaxial compressive strength was lowered by using the lightweight aggregate (B) as shown in Table 2 below.

TABLE 2

Note: Absorption rate = (weight-dry weight after water infiltration for 24 hours) / dry weight

Hardness: Fluorite = 4, Apatite = 5: Suspite = 6, Quartz = 7

Number of bubbles: Number of bubbles remaining in the area (10cm × 20cm) of the form bottom surface

Example 11-14

The glass wool was added to the mortar composition of Example 3 described above according to the total weight of the composition (A) and aggregate (B), except that the amounts shown in Table 3 below were respectively added.

The test results of the bending strength (7 days) were as shown in Table 3 below.

TABLE 3

Example 15-18

The glass wool was added to the mortar composition of Example 8 described above according to the total weight of the composition (A) and aggregate (B), except that the amounts shown in Table 4 below were the same as those of Example 8.

The test results of the bending strength (7 days) were as shown in Table 4 below.

TABLE 4

Claims (2)

In total 100 parts by weight, (1) 93-77 parts by weight of alumina cement (2) 3-10 parts by weight of at least one kind selected from montmorillonite, acidic clay and bentonite (3) 3-10 parts by weight selected from zircon oxide and magnesia Part (4) At least one kind selected from alkali metal salts and alkaline earth metal salts of stearic acid comprises 0.5 to 1 part by weight of composition (A) and about 1 to 4 parts by weight of aggregate (B) per 1 part by weight of the composition (A). An unfired building material of an alumina cement system such as a ceramic tile, wherein the die molding of the mortar composition is an unfired molding. The microstructure of an alumina cement system such as a ceramic tile according to claim 1, wherein the mortar composition comprises 0.5-3% by weight of mineral fibers depending on the total weight of the composition (A) and the aggregate (B). Sex building.