JPS62167245A - Ceramic tile-like portland cement base non-burnt construction material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a molded product of a Portland cement mortar composition, which is not a fired product such as J)1 ceramic tiles, but an unfired molded product. Nevertheless, it has an excellent and attractive surface gloss similar to ceramic tiles, and also exhibits excellent hardness, reduced water absorption,
This invention relates to a ceramic tile-like Portland cement-based unfired building material that has excellent properties such as strength, acid resistance, heat resistance, and weather resistance, and is extremely useful in a wide range of building material fields.

More specifically, the present invention comprises a composition A consisting of the following (1) to (6) (1) 93 to 73 weight parts of Portland cement in a total of 100 weight + i parts, and about 1 part by volume of the composition A. This invention relates to a ceramic tile-like Portland cement-based unfired building material, which is a molded mortar IIL product containing 1 to about 4 parts by volume of aggregate B, and is an unfired molded product.

Conventionally, so-called ceramic tiles have an excellent surface gloss,
It has excellent hardness, water resistance, strength, and other physical properties, so it is used in a wide range of building material applications. -However, since the product is made only after the firing process, it is unavoidable that it is complicated and expensive due to mJ & operation and manufacturing equipment. There are many restrictions on its use because it comes with the disadvantage of being expensive.

The present inventors have conducted research to develop a ceramic tile-like building material that can avoid the above-mentioned various advantages that are the fate of ceramic building materials, and that can also satisfy the needs.

As a result, a Portland cement (M) mortar composition containing a composition A having a specific composition and an aggregate B can be made into a ceramic tile-like mortar composition by simply molding it into a mold, even though it is an unfired product. It is a ceramic-like product that has an attractive surface gloss, exhibits excellent hardness, reduced water absorption, and has satisfactory physical properties such as strength, acid resistance, heat resistance, and weather resistance. discovered that it is possible to form unfired building materials.

According to the research conducted by the present inventors, the ceramic-like unfired building material can be easily manufactured using the same method as mold-molded cured products of ordinary mortar compositions, so it is easier to manufacture than ceramic building materials. There is an advantage in that it can be provided easily and inexpensively in terms of legacy work, equipment, and price, but ceramic tiles have the advantage of being able to provide large products and complicated shapes that are inevitably more complicated and expensive. It has been found that this product also has the advantage of being industrially extremely easy and inexpensive to manufacture.

Furthermore, because it is possible to provide a molded product that is freely colored in a desired color simply by blending an appropriate pigment, there is no restriction on the change in color due to firing, as is the case with ceramic building materials. , furthermore, strength and unit volume weight, etc.
If necessary, change as desired within the range of y4KK
It was found that α also has advantages, such as being easy to use, and it is also possible to select and change the strength and weight depending on the purpose of use as a building material.

Therefore, the object of the present invention is to provide a molded product of a mortar composition, which does not smear even though it is an unfired molded product, has an excellent and attractive surface gloss similar to a ceramic tile, and has excellent various properties. To provide an unfired building material resembling a Portland cement ceramic tile having physical properties of J%.

The above-mentioned and further objects and advantages of the present invention will become more apparent from the following description.

The Portland cement-based ceramic tile-like unfired building material of the present invention contains the following (1) to (6) in a total of 100 parts by weight.
) and a Portland cement-based mortar composition containing aggregate Bft in an amount of about 1 to about 4 parts by volume per 1 part by volume of the composition A, the molded product being an unfired mortar composition. It is characterized by being a molded product.

(1) Portland cement 93-73 parts by weight At least one kind of salt and alkaline earth 0.5-3 parts by weight Total 1
00 Heavy Plate Part In the above composition, if the amount of (1) Portland cement is outside the above range and is too small, the physical properties such as compressive strength and bending strength will noticeably decrease; Since a decrease in any of substances (2) to (6) causes an adverse effect, it should be appropriately selected within the above range. In addition, in the above composition A, if the amount of the component (2) is too small apart from the binary ff117fl, the specular reflectance tends to decrease, and if it is too large, the amount of the component (2) ) The reduction of any one of (3) to (6) will cause inconvenience, so it is appropriately selected within the above range.

Furthermore, in the above composition A, if the amount of component (3) is too small outside the above range, the decrease in hardness will be particularly noticeable, or it will be too large. In this case, an adverse effect occurs due to a decrease in components other than the component (3) of the composition (3). Therefore, -2 is selected as appropriate within the above range. Furthermore, in the above composition A, if the amount of fireflies in component (4) is too small outside the above range, there will be disadvantages such as increased water absorption and decreased antifoaming properties, and if it is too large, (4) Since there is a disadvantage associated with the reduction of components other than the component, the amount is appropriately selected within the above range.

Furthermore, in the mud composition A, it is preferable that the component (5) coexists in approximately the same amount as the component (4) in the composition A;
Amounts outside the above range tend to cause disadvantages similar to those of component (4). Moreover, in the above composition A, (6)
If the amount of the component is outside the above range and is too small, the curing time will be extremely slow, which is a practical disadvantage; if it is too large,
The curing time becomes too fast, causing problems in fabrication,
Since disadvantages may arise due to a decrease in other components, it is preferable to appropriately select the amount within the above range.

Furthermore, do these components (1) to (6) work together to contribute to the combination of excellent properties of the ceramic tile-like Portland cement-based unfired building material of the present invention? Although it is not possible to unambiguously explain the effects of these components because they both support and support each other, there are three options within the range of each of the components listed above. The composition can be easily selected and set experimentally in advance.

In the composition, components (2) to (6) are not limited to one type, but multiple types of each can be used in combination. However, when multiple types are used in combination, the total amount of each component within the above range can be quickly prepared. should be used in total amount. for example(
2) When two types of components are used in combination, they are used together so that the total amount of the two types is in the range of 3 to 10 parts by weight.

Examples of the component (4) include sorg stearate, potassium stearate, magnesium stearate, and calcium stearate.

Examples of the component (5) include sorg naphthalene sulfonate, potassium naphthalene sulfonate, etc.
6) Examples of alkali metal bicarbonate salts in the ingredients include:
Examples include sodium bicarbonate and potassium bicarbonate.

In the present invention, the mortar composition comprises composition A as described above and about 1 to about 4 i.
Contains aggregate B. As such aggregate B, various aggregates commonly used in mortar compositions can be used, and any natural or artificial aggregates can be used. In addition to ordinary aggregates, lightweight aggregates can also be used to carry out heavy-duty fft 1jlffi of the ceramic tile-like green building materials of the present invention. Such aggregates themselves are well known and can be used in the present invention. Examples include compacted aggregate mainly composed of expanded shale, fly ash, lightweight aggregate mixed with blast furnace water slag, perlite (artificial light aggregate), volcanic ash (natural wild silk aggregate), etc. In addition to these, river sand, The weight M of the ceramic tile-like unfired building material of the present invention can be adjusted by appropriately mixing general bone phase such as crushed stone.

In the present invention, the mortar composition may further contain additive components. Examples of such additive components include coloring agents such as pigments, mineral fibers such as stools, rock wool, and the like. The amount added can be changed as appropriate as long as it does not adversely affect the excellent surface light σ (and physical properties) of the ceramic tile-like unfired building material of the present invention. 5 to about 5.0% by weight of colorant, about 0.0% by weight of colorant;
Examples include amounts such as 5 to about 3% by weight mineral fibers. The inclusion of mineral aH1 helps improve the bending strength. At that time, it is acceptable to add more than about 3% by weight, but since this does not further improve the bending strength, it is sufficient to add up to about 3% by weight.

The ceramic tile-like Portland cement-based unfired building material of the present invention contains about 1 to about 4 parts by volume of aggregate B per 1 part by volume of the above-mentioned Portland cement composition A, and further contains other additives. A suitable amount of water,
For example, for 1 part by volume of composition A, about 3 volumes IfJc
It can be formed by adding about 1.5 parts by volume of water to aggregate B1, kneading it, and pouring it into a suitable mold to form it. Forming means per se are well known and can be utilized in the present invention. Generally, it is possible to remove the mold by pouring it into a mold and leaving it in the apparatus for, for example, 8 hours.

When molding the ceramic tile-like unfired Portland cement building material of the present invention, it is particularly preferable to use a mold whose surface in contact with the surface of the molded product is smooth-finished. For example, by placing an arbitrary frame on a [ff lath board and pouring the mortar composition of the present invention into the frame to an appropriate yi, it is possible to obtain a Portland cement-based unfired building material resembling a ceramic tile after curing. can.

The ceramic tile-like unfired Portland cement building material of the present invention is useful in a wide range of building material fields, such as brick tiles, roof tiles, tiles (large tiles are particularly advantageous), blocks for gates and fences, interior and exterior building materials for houses, paving stones, It has a wide range of uses, from blocks for flower beds, flower pots, and other uses to materials for building high-rise buildings.

Hereinafter, several embodiments of the present invention will be illustrated in more detail by Examples together with Comparative Examples.

Examples 1 to 5 and Comparative Examples 1 to 5 Fukidou aggregate B was added to each of m-acid A shown in Table 1 below.
(Crushed stone with particle size 0 to 5 mm, specific gravity 1°5 or more)
: B = 2:8 (parts by volume), the mixture was mixed at a ratio of 100
Add 20 parts by weight of water to M parts and knead;
Pour into double formwork of x width: 4cm x length: 10cm,
For measuring specular reflectance, water absorption, hardness, and the number of bubbles appearing on the surface, use a 8cm x 13cm XL4
．． 2clIl'f) It was poured into a tile mold (made of plastic with a smooth bottom surface) and cured to obtain a cured molded product in the shape of a tile. The results of tests on the Itsumugi compressive strength (3 days and 7 days), specular reflectance (surface of the molded product), water absorption, hardness, and number of bubbles appearing on the surface of the obtained molded products are shown in Table 1 below. It was shown to.

Examples 6 to 10 and Comparative Examples 6 to 10 In Examples 1 to 5 and Comparative Examples 1 to 5, lightweight aggregate B (perlite, specific gravity 1.0 or less) was used instead of normal aggregate B, and A: Tile-shaped cured molded products were obtained in the same manner as Examples 1 to 5 and Comparative Examples 1 to 5, except that B = 25 near 5 (parts by volume). The results are below.
As shown in the JS2 table, the results were almost the same as the f51 table, except that the unconfined compressive strength was lower due to the use of lightweight aggregate B.

Examples 11 to 14 Example 3 and Example 3 except that glass wool was added to the mortar composition of Example 3 in the amounts shown in Table 3 below, based on the total weight of Composition A and Aggregate B. I did the same. The results of the bending strength (7 days) test were as shown in Table 3 below.

Examples 15-18

Claims (1)

[Claims] 1. Out of a total of 100 parts by weight, the following (1) to (6) (1) Portland cement 93 to 73 parts by weight (2) At least one selected from montmorillonite, acid clay, and bentonite 3 to 10 Parts by weight (3) At least one selected from zirconia and magnesia 2 to 8 parts by weight (4) At least one selected from alkali metal salts of stearate and alkaline earth metal salts 0.5 to 3 parts by weight (5) Naphthalene Sulfonic acid alkali metal salt 0.5~
3 parts by weight (6) Composition A consisting of 1 to 3 parts by weight of at least one selected from alkali metal bicarbonate and calcium chloride, and about 1 part by volume of composition A;
A ceramic tile-like Portland cement-based unfired building material, which is a molded product of a mortar composition containing ~4 parts by volume of aggregate B, and is an unfired molded product. 2. Ceramic tile-like according to claim 1, wherein the mortar composition further contains 0.5 to 3% by weight of mineral fibers based on the total weight of the composition A and aggregate B. unfired building materials.