KR102668575B1 - Artificial basalt comprising hardening composition and manufacturing method thereof - Google Patents

Abstract

The present specification provides a composition for manufacturing stone materials, including a composition for manufacturing stone materials containing stone powder, stone crystals, a hardening composition, and a coloring agent, and a stone material containing the same and having a large number of irregular protrusions and pores formed on the surface, not only on the exterior of the stone material, but also on the surface of the stone material. The internal shape also has the same or similar aesthetics as natural basalt, making it possible to produce stone materials with high usability. These stone materials exhibit significantly superior functionality compared to existing recycled stone materials, so they are used in recycling-related industries such as basalt stone dust. development can be promoted.

Description

Artificial basalt containing curing composition and method for manufacturing same {ARTIFICIAL BASALT COMPRISING HARDENING COMPOSITION AND MANUFACTURING METHOD THEREOF}

This specification relates to artificial basalt containing a curing composition and a method for producing the same.

Generally, basalt is a gray to black extruded volcanic rock. It is characterized by a relatively low silicon dioxide content (45% to 52%). Because lava cools rapidly at the surface, it is usually fine-grained or silver-microcrystalline. Fine-grained stoneware appears to be porphyritic or porosity containing large crystals. The main colored minerals are pyroxene and the colorless minerals are orthopyroxene. Unweathered basalt is black or gray, but may become red or purple depending on the oxidation of iron.

Most basaltic magma on Earth is created when peridotite or pyroxenite undergoes a decompression melting process in the upper mantle. Additionally, the oceanic crust is made up mostly of basalt. It was formed by mantle upwelling beneath the ocean ridges. When the degree of partial melting is large, soleyite basalt is formed, and when the degree of partial melting is low, alkali basalt is formed. In addition to Earth, the presence of basalt has been confirmed on the Moon, Mars, and Venus, as well as on the asteroid Vesta.

Basalt is mainly an amorphous igneous rock formed by magma eluted at a temperature of 1230°C to 1400°C from more than 100 km underground. It is dark gray to black in color, contains plagioclase, Fe, and Mg as its main components, and is rich in various minerals. In Korea, basalt is produced mainly in Jeju Island and Cheorwon. Basalt varies slightly depending on the production area, but is known to exhibit the following diverse functions and effects due to its inherent physical and chemical properties.

Due to these unique effects and functionality provided by basalt, basalt itself is used as building finishing materials such as boards, driveway blocks, concrete, aggregates, and tiles, materials for burning fire, sauna and steaming materials, health underfloor heating materials, and gray water filters. It is widely used as a material for well-being, such as a material for water purifiers, and due to its aesthetic beauty, it is also widely used as a material for crafts such as haruban, millstone mortars, statues of the Virgin Mary, and orchid pots. Moreover, recently, basalt fiber has been developed from basalt extract, and various uses are expected, such as replacing asbestos, which is harmful to the human body.

However, the above products or materials that utilize the unique properties of basalt are all processed and produced using basalt itself, which is a social and environmental problem due to the generation of waste during the processing or production process. The waste generated during the processing of basalt is mainly basalt waste rock of various sizes, dust generated during the polishing process, etc., and waste sludge ultimately generated during the treatment of this dust. Since their disposal is not easy procedurally and their capacity is large, there is an urgent need to prepare environmental treatment measures.

One of the alternatives is artificial basalt, and there have been several attempts to manufacture artificial basalt, but most of them have new environmental pollution problems or problems with productivity and functionality. For example, the shape of the produced artificial basalt is significantly different from that of natural basalt, making it unattractive in appearance, or its quality in terms of strength and functionality is significantly poor, making it difficult to use it as a construction or civil engineering material.

Republic of Korea Patent Publication No. 10-2000-0032986 (June 15, 2000)

This specification seeks to provide a method of manufacturing stone materials similar to natural basalt not only externally but also internally through artificial basalt containing a hardening composition and a method for manufacturing the same, and in particular, using new ingredients different from existing hardening raw materials. By doing so, we aim to provide a way to further enhance the functional effect.

In order to solve the above problem, the present specification provides a stone material having a plurality of irregular protrusions and pores formed on the surface, including a composition for manufacturing stone materials including stone dust, stone crystals, a hardening composition, and a coloring agent.

It also provides a composition for manufacturing stone materials containing stone dust, stone crystals, a hardening composition, and a coloring agent.

In addition, mixing stone dust, stone crystals, hardening composition A, and hardening composition B to create a mixture; Applying a portion of the mixture to the inner surface of a mold having a plurality of irregular protrusions and pores formed on the inner surface; filling the mixture into the mold; and hardening at a constant temperature and pressure. It provides a method of manufacturing stone materials including a step.

The stone material of this specification not only has high usability as it has the same or similar aesthetics as natural basalt in not only the exterior but also the interior shape, but also provides significantly superior functionality compared to existing recycled products, so it is widely used in recycling-related industries such as basalt stone dust. development can be promoted.

Figure 1 shows an artificial basalt stone product manufactured according to a manufacturing example of the present invention.
Figure 2 shows a cross section of an artificial basalt stone product manufactured according to a manufacturing example of the present invention.

Hereinafter, this specification will be described in detail.

In this specification, stone dust includes by-products generated while crushing rocks, and includes stone powder.

In this specification, stone materials refer to materials used in construction or civil engineering that contain rocks, and include stone products processed or produced in certain equipment or facilities. For example, it includes boundary stones, blocks, puzzle blocks, reinforced soil blocks, sidewalk blocks, road blocks, etc.

In this specification, stone refers to materials used in construction or civil engineering and includes rocks. Examples include basalt, granite, sandstone, marble, etc.

In this specification, stone crystals include lump materials or lump stones of unspecified or certain specifications produced by crushing or destroying one or more of the group consisting of stone, stone materials, civil engineering materials, and building materials.

In this specification, artificial basalt includes artificial basalt, and includes products artificially processed or produced to have the same or similar form as natural basalt using various raw materials.

In this specification, stone products include articles made of stone, and include articles produced by processing rocks or using rocks in certain equipment or facilities. For example, it includes boundary stones, road blocks, etc.

This specification may relate to a stone material having a large number of irregular protrusions and pores formed on the surface, including a stone material manufacturing composition including stone dust, stone crystals, a hardening composition, and a coloring agent. In one aspect, the stone material may be stone and includes artificial basalt or artificial basalt.

As an example, the coloring agent may include any pigment that can be used in the manufacture of stone materials, and more specifically, may be a pigment showing the same or similar color as basalt.

As one embodiment, the curing composition includes epichlorohydrin-bisphenol A resin, calcium carbonate, polyamidoamine, propyl gallate, microcrystalline wax, and lecithin, and has a plurality of irregular protrusions and pores. It may be a stone material formed on the surface.

As another embodiment, the irregular protrusions and pores may be a stone material with a plurality of irregular protrusions and pores formed on the surface, which have the same or similar shape as the protrusions and pores of the basalt surface. In one aspect, the stone material may be artificial basalt or artificial basalt.

Additionally, this specification may relate to a composition for manufacturing stone materials including stone dust, stone crystals, a hardening composition, and a coloring agent.

As one embodiment, the curing composition includes: curing composition A comprising epichlorohydrin-bisphenol A resin, calcium carbonate, and propyl gallate; and a curing composition B containing microcrystalline wax, polyamidoamine, calcium carbonate, and lecithin.

As another embodiment, the curing composition may be a mixture of curing composition A and curing composition B. Curing does not occur in an unmixed state, and curing begins when compositions A and B are mixed.

As an example, the curing composition includes curing composition 1 containing epichlorohydrin-bisphenol A resin, calcium carbonate, and propyl gallate; and a curing composition 2 containing microcrystalline wax, polyamidoamine, calcium carbonate, and lecithin.

In one aspect, the curing composition may be a mixture of curing composition 1 and curing composition 2. Curing does not occur in an unmixed state, and curing begins when compositions 1 and 2 are mixed.

As another example, the stone material may be one or more selected from the group consisting of puzzle blocks, reinforced soil blocks, retaining wall blocks, sidewalks, and road blocks.

As an example, the stone crystal may have a diameter of 20 mm or more. Or it may be 110 mm or less in diameter.

In one aspect, the stone crystal may include a rock mass generated in the process of crushing or destroying basalt.

Meanwhile, the present specification includes the steps of mixing stone dust, stone crystals, the curing composition A, and the curing composition B to create a mixture; Applying a portion of the mixture to the inner surface of a mold having a plurality of irregular protrusions and pores formed on the inner surface; filling the mixture into the mold; and hardening at a constant temperature and pressure.

As an embodiment, the curing composition A may be the curing composition 1.

As another embodiment, the curing composition B may be the curing composition 2.

In one aspect, the stone material may be artificial basalt stone material.

In another aspect, the temperature may be room temperature, and more specifically, may be 15 degrees Celsius. In another aspect, the pressure may be 10 MPa to 30 MPa, and more preferably 12 MPa.

According to the experimental examples of this specification, it was confirmed that when the average particle size of the stone powder was not 1.5 to 1.9 mm or the average diameter of the stone crystals was not 20 mm to 110 mm, the aesthetics of the cross section of the completed artificial basalt stone material were significantly reduced. (See Table 4) In particular, according to the experimental examples of the present specification, the artificial basalt stone material according to the manufacturing example of the present specification can provide the same or almost similar aesthetics to the cut surface of natural basalt, and its strength is further improved than that of natural basalt. Confirmed.

In addition, according to an embodiment or a manufacturing example of the present invention, curing is initiated by mixing the curing composition A (or the curing composition 1) and the curing composition B (or the curing composition 2), When hardening was completed, it demonstrated significantly better compressive and flexural strength than other companies' artificial basalt products, and its water absorption rate was also very low, so it was found to be more useful in various fields such as sidewalks, roads, sidewalks, civil engineering, and construction than other companies' products. . In addition, it was confirmed that no aesthetic damage occurred to the exterior due to the use of the curing compositions, and that there was no adverse effect on improving the aesthetics of the cross-section as in the experimental example. This effect was confirmed to be caused by propyl gallate, microcrystalline wax, and lecithin, which were not used as components of existing hardeners, and it was found that the above effect did not appear if any of these were excluded or the weight ratio range was outside a certain range. I was able to.

In other words, when the raw material conditions according to the manufacturing example of the present specification are satisfied, it is possible to simultaneously improve strength, reduce water absorption, and significantly improve the aesthetics of the cut surface.

Hereinafter, the configuration and effect of one aspect of the present invention will be described in more detail through Examples, Comparative Examples, Preparation Examples, and Experimental Examples. However, these examples are provided for illustrative purposes only to aid understanding of one aspect of the present invention, and it will be apparent to those skilled in the art that the scope of the present invention is not limited by the examples below. Accordingly, the substantial scope of the present invention will be defined by the appended claims and their equivalents. The scope of rights of the present invention is indicated by the patent claims, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention.

[Example]

Among the basalt stones that were demolished or discarded, stone dust and scrap stones were collected. Stone dust was prepared to have an average particle size of 1.5 to 1.9 mm, and off-cut stones were ground and prepared (stone crystals) to have an average diameter of 20 mm to 110 mm.

In addition to the stone dust and stone crystals, the raw materials necessary for hardening were purchased separately from the market, and after numerous experiments and trial and error, the mixing ratio was determined as shown in Table 1 below (unit kg/㎥). Curing composition A (or 1) in Table 1 is also called a curing base, and curing composition B (or 2) is also called a curing agent.

division Weight (kg/㎥) weight% stone crystals Stone crystals with an average diameter of 20 mm to 110 mm 1200 60 stone dust Stone dust with an average particle size of 1.5 to 1.9 mm 500 25 Composition A for curing Epichlorohydrin-bisphenol A resin 52.5 2.625 calcium carbonate 90 4.5 Ignorant asset profile 4.5 0.225 Composition B for curing microcrystalline wax 3 0.15 polyamidoamine 37.5 1.875 calcium carbonate 97.5 4.875 lecithin 15 0.75 sum 2000 100

[Comparative example]

In Table 1, the contents of propyl gallate, microcrystalline wax, and lecithin among the components of stone dust crystals, stone dust, hardening composition A, and hardening composition B are adjusted respectively, and the content of stone dust is adjusted for excess or deficiency accordingly. So the weight percent was set to 100. The detailed weight ratio (% by weight) is shown in Table 2 below.

division Comparative Example 1 Comparative example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Comparative example 7 Comparative example 8 Comparative Example 9 Stone crystals with an average diameter of 20 to 110 mm 60 60 60 60 60 60 60 60 60 Stone dust with an average particle size of 1.5 to 1.9 mm 25.225 25.035 24.915 25.15 25.06 24.94 25.75 25.26 24.94 Epichlorohydrin-bisphenol A resin 2.625 2.625 2.625 2.625 2.625 2.625 2.625 2.625 2.625 calcium carbonate 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 Ignorant asset profile 0 0.19 0.31 0.225 0.225 0.225 0.225 0.225 0.225 microcrystalline wax 0.15 0.15 0.15 0 0.09 0.21 0.15 0.15 0.15 polyamidoamine 1.875 1.875 1.875 1.875 1.875 1.875 1.875 1.875 1.875 calcium carbonate 4.875 4.875 4.875 4.875 4.875 4.875 4.875 4.875 4.875 lecithin 0.75 0.75 0.75 0.75 0.75 0.75 0 0.49 0.81 sum 100 100 100 100 100 100 100 100 100

[Manufacturing example]

The curing effect appears only when curing composition A and curing composition B are mixed. Using a pan mixer, stone dust, hardening composition A, hardening composition B, and a certain amount of black iron oxide pigment were mixed in the weight ratio as shown in Table 1 above to form a mold (similar to natural basalt) with a large number of irregular protrusions and pores formed on the inner surface. A certain amount was applied to the inner surface of the formwork (for manufacturing sidewalk blocks) with a bubble pattern. Thereafter, stone crystals, stone dust, hardening composition A and hardening composition B mixed in the same weight ratio as shown in Table 1 were filled thereon according to the above example, and then a certain amount of iron oxide pigment was mixed. The mold was then capped, the temperature was maintained at 15 degrees Celsius, and the mold was cured at a constant pressure of 12 MPa for 24 hours. Afterwards, it was separated from the formwork and the manufacture of artificial basalt stone products in the form of sidewalk blocks was completed (Manufacturing Example 1).

In the same manner, stone crystals, stone dust, hardening composition A and hardening composition B were prepared as in Comparative Examples 1 to 9 with the compositions shown in Table 2, and then artificial basalt stone products were manufactured in the same manner as in Preparation Example 1 ( Preparation Examples 2 to 10).

[Experimental Example 1]

Compressive strength, bending strength, and water absorption were measured for Preparation Examples 1 to 10. The compressive strength test was conducted according to KS F 2519, the flexural strength was conducted according to KS F 2530-1, and the water absorption test was conducted according to KS F 2518. The test results were confirmed through the Geochang Granite Research Center, a certified testing agency.

division Manufacturing Example 1 Manufacturing example 2 Manufacturing example 3 Manufacturing example 4 Manufacturing example 5 Manufacturing example 6 Manufacturing example 7 Manufacturing example 8 Manufacturing example 9 Production example 10 Compressive strength (MPa) 819.3 128.2 130.1 190.2 162.3 140.3 171.2 152.9 162.8 162.7 Bending strength (MPa) 691.7 112.3 119.2 189.6 152.7 132.5 168.1 141.2 157.2 155.2 Absorption rate (%) 1.2 4.1 4.2 4.6 4.2 3.8 4.1 4.3 5.2 3.9

As a result, it was confirmed that Preparation Example 1 had significantly superior compressive strength and bending strength compared to other Preparation Examples, and the water absorption rate was also significantly lower than other Preparation Examples. Through this, it was found that the artificial basalt stone product of Preparation Example 1 can be usefully used as a building material such as road curbs, sidewalk blocks, etc. In particular, it was confirmed that the ratio of raw materials, such as propyl gallate, microcrystalline wax, and lecithin, which are difficult for a person skilled in the art to guess, are greatly involved in compressive strength, bending strength, and water absorption, and the effect is greatly influenced by their combination.

In addition, it was confirmed that the compressive strength, flexural strength, and water absorption of Preparation Example 1 were significantly damaged when any of the diameter size of stone dust, size of stone crystals, temperature condition, and pressure condition were outside the above range.

[Experimental Example 2]

The stone product manufactured according to Preparation Example 1 was compared in terms of appearance and aesthetics with other artificial basalt products. In particular, not only the exterior but also the interior was evaluated to see whether it felt like actual basalt and whether there was any sense of heterogeneity.

Specifically, 25 well-trained panelists were tested on artificial basalt stone products manufactured according to Preparation Example 1 above, natural basalt, artificial basalt product 1 from another company (K-Stone Co., Ltd.), and artificial basalt product 2 from another company (Eco Co., Ltd.). Smile) was observed to conduct a sensory evaluation on the aesthetics of the exterior. All of the above products were of the same size, but the central part of the product was cut to allow a cross-section to be seen so that the inside as well as the outside could be observed. Sensory evaluation uses a 5-point scale: 5 (very similar to natural basalt), 4 (slightly different from natural basalt), 3 (different from natural basalt), 2 (very different from natural basalt), 1 (cannot be used as stone products) ) was evaluated by assigning a score. The results are shown in Table 4 below, and statistical significance was verified through Duncan's multiple range test at the p < 0.05 level using the SPSS 12.0 program.

division Manufacturing Example 1 natural basalt Third-party artificial basalt products1 Other company’s artificial basalt product 2 Out 4.8 4.7 4.5 4.6 internal section 4.7 4.5 2.1 1.8

After examining the results, all four stone materials were evaluated as similar to natural basalt for the exterior surface. However, in the case of the internal cross section, Preparation Example 1 and natural basalt were confirmed to be very similar to natural basalt, but artificial basalt products from other companies were confirmed to give a feeling of heterogeneity that was significantly different from natural basalt, and the stone material according to Preparation Example 1 of this specification had a remarkable aesthetic appearance. It has been proven to give a feeling close to natural basalt. In the case of artificial basalt from other companies, the average diameter of the stone crystals was less than 20 mm or more than 110 mm, or the average particle size of the stone powder was not 1.5 to 1.9 mm, so the average particle size conditions of the stone powder according to the manufacturing example of the present invention were used as raw materials. It was confirmed that the average diameter condition of the stone crystals was a critical factor in the formation of a remarkable aesthetic of the artificial basalt cross section.

Claims (8)

It includes a composition for manufacturing stone materials including stone dust, stone crystals, a hardening composition, and a coloring agent,
The curing composition is a stone material with a large number of irregular protrusions and pores formed on the surface, which includes epichlorohydrin-bisphenol A resin, calcium carbonate, polyamidoamine, propyl gallate, microcrystalline wax, and lecithin. . delete The stone material according to claim 1, wherein the plurality of irregular protrusions and pores are the same or similar in shape to the protrusions and pores of the basalt surface. Contains stone dust, stone crystals, hardening compositions and colorants,
The curing composition includes curing composition A comprising epichlorohydrin-bisphenol A resin, calcium carbonate, and propyl gallate; and
A composition for manufacturing stone materials, comprising a curing composition B comprising microcrystalline wax, polyamidoamine, calcium carbonate, and lecithin. delete The composition for manufacturing stone materials according to claim 4, wherein the curing composition is a mixture of curing composition A and curing composition B. The composition for manufacturing stone materials according to claim 4, wherein the stone materials are at least one selected from the group consisting of puzzle blocks, reinforced soil blocks, retaining wall blocks, and blocks for sidewalks and roads. delete