KR200274561Y1 - Boundary stone made from artificial basalt - Google Patents

Abstract

By-products, such as stone powder, disclose a walkway or road boundary stone made of artificial basalt that exhibits the same texture and appearance as natural basalt but with good mechanical strength. The boundary stone has a plurality of irregular pores on the surface corresponding to the mold formed on the surface of the plurality of irregular protrusions having the same shape as the pores formed on the surface of the natural basalt. By-products such as waste-rock and stone powder can be used to manufacture sidewalks or road boundary stones made of artificial basalt with the same color and shape as natural basalt, thereby minimizing damage to the natural environment and recycling resources as much as possible. In addition, it is possible to produce a low-cost road or road boundary stone made of artificial basalt having a superior strength compared to natural basalt.

Description

Boundary stone made from artificial basalt {Boundary stone made from artificial basalt}

The present invention relates to a sidewalk and road boundary stone, which is a building material made of artificial basalt, and more particularly, to a sidewalk and road boundary stone made of artificial basalt having the same texture and appearance as natural basalt while having excellent mechanical strength.

In general, basalt is a fine-grained igneous rock that is mainly composed of plagioclase and common ore. Basalt is produced almost as a lava flow, mainly grayish to black. Since basalt is a rock that hardens and hardens when magma comes to the surface, gas dissolved in magma flies and has many irregular holes, and because it cools suddenly, crystals do not form and crystals are very small or absent. Basalt is widely used as a building material because of its high quality.In Korea, it is widely distributed in Hallasan, South Baekdusan, Gangwon-do, Cheorwon, and Ulleungdo.

At present, natural Jeju basalt is used as road boundary stone or sidewalk block even though the price is much higher than concrete products. This is due to the peculiarity of Jeju's tourism industry and the beauty of natural basalt and its strength and durability compared to concrete products. However, natural basalt is much more expensive than concrete products in terms of the extraction and processing of gemstones, there is a disadvantage that the size of the product to be processed according to the size of the gemstones. In addition, the natural environmental damage is inevitable in the process of collecting natural basalt ore, there is a problem that a large amount of stone powder is generated even when processing the ore causes environmental problems.

Therefore, it is required to develop artificial basalt that can replace the natural basalt to minimize the damage to the natural environment by manufacturing at low cost while maintaining the appearance as close as possible to the natural basalt, which is more necessary for Jeju Island as a tourist destination. Desperate

Currently, charcoal is used to realize the same appearance as Jeju's natural basalt, but mainly for air purification and antibacterial action, and its mechanical strength is very poor. Therefore, it is used for building materials such as brick, sidewalk road boundary stone, road boundary stone or sidewalk block. Difficult to use

Korean Patent Laid-Open Publication No. 1999-75834 discloses a porous concrete block and its manufacturing method mainly for the purpose of reinforcing the ground. The porous concrete block disclosed in the above patent is not only difficult to apply to the above-mentioned building materials because it is installed on the retaining wall, the water pipe, or the back of the structure for preventing ground subsidence, ventilation, and dehydration of permanent soils. There are also many differences from natural basalt.

In addition, Korean Patent Laid-Open Publication No. 2000-72274 proposes a method for producing a porous lava stone concrete using styrofoam as a main raw material and fine stone powder and cement.

1 is a process flow chart for explaining a concrete forming method of the porous lava stone disclosed in the published patent.

Referring to FIG. 1, first, fine stone powder, cement, and crushed styrofoam are added at a ratio of about 1: 2: 3, and water to which a colorant is added is added to give the same color as the rock.

Subsequently, the ingredients are added to a stirrer and mixed in a thin dough state by stirring, and then the dough is poured into a mold and compacted to form a solid.

Subsequently, after separating and removing a molded object from the said molding die, the film formed in the surface of a molded object is removed using a brush etc. When the styrofoam exposed as the film is removed is dissolved by removing the solvent by applying it to the entire surface of the molded body, the porous concrete having a plurality of pores formed on the surface is completed.

However, even in the above-described method of manufacturing porous concrete, there is a disadvantage in that it takes a lot of time and cost to remove the coating of the molded body and to form a plurality of pores using styrofoam. In addition, since the solvent for forming pores is difficult to penetrate into the interior of concrete, the strength of the concrete in the form of porous lava stone is significantly reduced due to the remaining styrofoam, which is used as a building material such as brick, sidewalk block or road boundary stone. There is a difficult problem to be.

Accordingly, one object of the present invention is to provide a brick, walkway block, sidewalk boundary boundary, and road boundary stone, which is a building material made of artificial basalt which has the same appearance and texture as natural basalt, but exhibits excellent mechanical strength.

Another object of the present invention is to provide a sidewalk and road boundary stone made of artificial basalt, which has the same shape and color as natural Jeju basalt, but has excellent characteristics in civil engineering, landscaping, and building materials using by-products such as stone powder.

Another object of the present invention is to provide a sidewalk and road boundary stone made of artificial basalt which can prevent the damage to the natural environment by using natural basalt and replace natural basalt at low cost.

1 is a flowchart for explaining a conventional porous lava stone manufacturing process.

2 is a flowchart illustrating a manufacturing process of a road or sidewalk boundary boundary stone made of the artificial basalt composition according to the present invention.

Figure 3 is a photograph of the natural basalt cut to form the silicon mold according to the present invention.

Figure 4 is a partial cut picture for explaining the silicon mold formed according to the present invention.

Figure 5 is a photograph of a sidewalk or road boundary stone made of artificial basalt composition according to the present invention.

FIG. 6 is a schematic cross-sectional view for describing the dimensions of a sidewalk or road boundary stone shown in FIG. 5.

In order to achieve the above object of the present invention, according to the present invention, a plurality of irregular pores formed on the surface corresponding to the mold having a plurality of protrusions on the surface of the same shape as the pores formed on the surface of the natural basalt In this case, the front upper end of the boundary stone is formed with a cut portion cut at a predetermined angle, and the boundary stone has an upper longitudinal length of 120 to 210 mm, a lower longitudinal length of 120 to 210 mm, and 500 It has a width of ˜1000 mm, a height of 120 to 300 mm and a width of a cut portion of 10 to 30 mm. In addition, the front face of the boundary stone is attached with a marker bottle in order to mark the road boundary. Preferably, the mold is made of a silicone mold mixed with silicon and a curing agent in a ratio of 1: 1, and the boundary stone is 2280 to 2335 kg. / M 3, 1890 to 6210 kgf flexural strength and 4.3 to 4.9% water absorption. The boundary stone is 40 to 65 parts by weight of aggregate, 12 to 26 parts by weight of sand, 8 to 22 parts by weight of stone and 8 to 8 parts of cement. 20 parts by weight, 0.2 to 0.8 parts by weight of pigment and 0.02 to 0.05 parts by weight of admixture are composed of 3 to 8 parts by weight of water. At this time, the aggregate has a particle size distribution in the range of 19 to 25 mm, the sand has a particle size distribution in the range of 2 to 6 mm, and the stone powder has an average particle diameter of 2 mm or less.

According to the present invention, by using by-products such as waste-rock or stone powder, it is possible to manufacture a sidewalk or road boundary stone, which is a building material made of artificial basalt, which can realize the same color and shape as natural basalt. Damage to the natural environment can be minimized, and by-products such as stone powder can be used to recycle resources as much as possible. In addition, the manufacturing method of the building material using the artificial basalt according to the present invention can be used more widely because it is sufficiently applicable to other artificial rock development process. Furthermore, building materials such as walkway boundary stone, road boundary stone, brick or sidewalk block, etc., which are widely available from artificial basalt with excellent strength while maintaining the same appearance and texture as natural basalt, can be manufactured at low cost. Building materials to be manufactured can be applied in a wider range of fields than natural basalt because of the various dimensions and colors available. In addition, the building material produced from the artificial basalt according to the present invention is excellent in mechanical properties and aesthetics compared to natural basalt, while the manufacturing cost is significantly lower, it is applicable to various civil, landscape and construction fields more economically.

Hereinafter, the walkway and road boundary stone made of the artificial basalt according to the present invention and a manufacturing method thereof will be described in detail.

Figure 2 shows a flow chart of the manufacturing process for explaining a method for manufacturing a building material such as a sidewalk or road boundary stone made of artificial basalt according to the present invention.

Referring to Figure 2, first, the aggregate is washed and dried through the aggregate pretreatment process. At this time, the aggregate to be used should be clean and hard, and it should not contain impurities such as clay lumps while having a certain durability and having an appropriate particle size distribution. Aggregate used in the present invention is classified into coarse aggregate and fine aggregate according to sieve sieve test method of aggregate by KS A5101 standard according to KS F2502 standard, fine aggregate is divided into sand and stone powder.

In the coarse aggregate, the # 57 aggregate (25 to 5 mm) sieve is sifted using a 40 mm sieve, 25 mm sieve, 13 mm sieve, 5 mm sieve or 2.5 mm sieve, or the # 67 aggregate (19 to 5 mm) sieve Sift using a 25mm sieve, 19mm sieve, 10mm sieve, 5mm sieve, or 2.5mm sieve. In contrast, the fine aggregate is sifted using a 10mm sieve, 5mm sieve, 2.5mm sieve, 1.2mm sieve, 0.6mm sieve, 0.3mm sieve or 0.15mm sieve.

In the present invention, the coarse aggregate was used aggregates crushed and crushed porous natural basalt widely distributed in Jeju, in this case coarse aggregates have a particle size distribution of about 19 to 25 mm, coarse aggregate The maximum dimension of was not to exceed about 25 mm. In addition, the sand corresponding to the fine aggregate was used for washing sand having a particle size distribution of about 2-6 mm by washing the sea sand (海 남) collected from the south coast, the stone powder is incidental to the production of coarse aggregate Chain yarns containing fine powder and having an average particle diameter of about 2 mm or less were used. At this time, the fine powder is passed through the sieve 100 in the stone powder, it refers to the particles of a fine size having a particle size of about 0.15mm or less.

Table 1 shows the physical properties of the aggregates used in accordance with the present invention.

Item Classification importance Water absorption Performance rate Unit weight Assembly rate Differential Coarse aggregate 2.72 1.89% 61.8% 1678㎏ / ㎥ 6.50 ㆍ Fine aggregate sand 2.51 1.63% 59.0% 1455㎏ / ㎥ 2.35 1.0 Stone powder 2.69 3.55% 66.1% 1763㎏ / ㎥ 3.43 7.0

In the aggregate pretreatment process, the aggregate is put into a washing aggregate hopper having a dimension of about 10m × 10m × 5m in width × length × height, and then sprayed water through a spraying device to discharge from the aggregate in the hopper. Various pests and organic impurities are removed, and the washed aggregate is dried at a temperature of about 20 to 40 ° C. for about 3 to 5 hours.

Next, as shown in FIG. 2, coarse aggregates, fine aggregates including sand and stone powder, cement, pigments and admixtures are mixed, and then water is added to evenly mix to form an artificial basalt mixture. At this time, the coarse aggregate in the artificial basalt mixture is about 1100 to 1300 kg / m 3, sand is about 350 to 520 kg / m 3, stone powder is about 250 to 450 kg / m 3, cement is about 250 to 400 kg / m 3, and the pigment is About 5 to 15 kg / m 3, admixture is about 0.02 to 0.05 kg / m 3, and water is mixed at a rate of about 100 to 150 kg / m 3. When the mixture is formed, the ratio of water to cement does not exceed 40%, and for cement, forkland cement or back cement according to KS L5201 is used.

In addition, the water used in the present invention should not contain impurities such as oil, salt, or organic substances, and the sensitizer, which is a admixture, is added in an appropriate amount within a range that does not reduce the quality of the artificial basalt. In addition, the pigment added to express the same color as the natural basalt using iron oxide pigment, not only improve the weather resistance of the basalt and prevent discoloration, but also affect the strength of the sidewalk or road boundary stone made of artificial basalt. It does not have a harmful effect on the environment.

On the other hand, in order to mold the artificial basalt mixture according to the present invention to a predetermined shape, the silicone mold knitting as follows to have the same appearance as natural basalt.

First, the natural basalt is cut into a processing saw for stone to have a plurality of sizes by predetermined dimensions. 3 is a photograph for explaining an example of the cut natural basalt.

As shown in FIG. 3, cutting natural basalt exposes a number of pores present in natural basalt. In this case, chamfering is performed to cut one upper portion of the rectangular parallelepiped natural basalt at a predetermined slope in order to manufacture a sidewalk or road boundary stone, which will be described later. In this way, in the process of cutting the natural basalt, since a lot of sludge generated during the cutting process, such as the surface and pores of the basalt remain and remove it with a soft brush or brush while washing with water. The dimensions of the cut natural basalt are the same as the dimensions of the sidewalk or road block described below.

Subsequently, the cut natural basalt is introduced into a drier, and then dried at a temperature of about 100 ° C. for at least about 2 hours to completely remove water from the basalt.

Next, the dried natural basalt is placed on a flat smooth die such as an acryl plate or the like so that the chamfered portion of the natural basalt is upwards, and then a release agent for silicone is placed on the surface of the natural basalt to be molded. A sufficient release agent for silicone is applied to the surface of the natural basalt to fill the pores. After application of the release agent for silicone, the applied release agent for silicone may flow out after about 5 to 6 minutes. At this time, wipe the leaked portion with a cloth or the like appropriately.

Subsequently, a gel-like silicone mixture in which the natural basalt to which the release agent is applied is mixed in a ratio of about 1: 1 with silicone and a curing agent is evenly coated on the surface of the natural basalt. In this case, the silicone mixture is sufficiently spread to the cut surface or the pores of the natural basalt, and the thickness of the silicone mixture applied to the natural basalt is uniform. To this end, by slightly vibrating the die on which the natural basalt is placed, the silicone mixture can be spread evenly.

The process of applying the silicone mixture is preferably carried out at a temperature of about 18 to 25 ℃, it is possible to adjust the ratio of the silicone and the curing agent according to the working temperature. That is, as the ratio of the curing agent is lowered and the time for curing the silicone mixture is delayed, the tensile strength of the protrusions formed on the surface of the silicone mold or the surface of the silicone mold after curing of the silicone mixture is improved.

4 is a partial cut photo for explaining a silicon mold.

Referring to FIG. 4, after about 2 to 3 hours of application of the silicone mixture, the silicone mixture is completely cured. When the cured silicone mold is separated from the natural basalt, the surface has a structure corresponding to the pores of the natural basalt. A silicone mold with numerous irregularities is irregularly completed. In other words, the silicone mold has a structure corresponding to the appearance of natural basalt.

Referring back to FIG. 2, the mold is completed by attaching the silicon mold to a mold having a predetermined dimension according to the size of the sidewalk or road boundary stone. That is, the adhesive is used to attach the silicon mold to a mold made of an iron plate having predetermined dimensions, and then the sand heated to a temperature of about 30 to 40 ° C. is filled into the mold on which the silicon mold is attached. In this way, when the heated sand is filled into the mold, the silicon mold and the iron sheet mold are firmly attached to each other by the hot pressing method.

In this thermocompression process, the adhesive should be uniformly applied to the steel sheet mold without being too thick. If the thickness of the adhesive is not constant, the inside of the completed mold is not flattened. After filling the sand, and after about 24 hours at room temperature, the sand inside the mold is poured and washed with water to complete the mold with silicon molds having a predetermined size depending on the size of the sidewalk or road block.

The artificial basalt mixture is introduced into a mold having different dimensions. In this case, an automatic feeding device equipped with a conveying belt is used so that the artificial basalt mixture is uniformly supplied from the hopper according to the dimensions of the sidewalk boundary stone or the road boundary stone. In addition, in the case of manufacturing a stepped road boundary stone or road boundary stone using the artificial basalt mixing according to the present invention, the marker bottle is erected on the bottom of the mold, and the artificial basalt composition is added to the mold to firmly attach the marker bottle to the artificial basalt composition. .

Subsequently, the mold into which the artificial basalt mixture is introduced is passed through the diaphragm with the low frequency vibrator and the high frequency vibrator attached to the lower portion, and low frequency and high frequency vibration necessary for forming the artificial basalt mixture injected into the mold are applied for about 9 to 11 seconds. That is, first, the first vibration is applied for about 3 to 4 seconds at a high frequency, and the second vibration is applied for about 6 to 7 seconds at a low frequency. In this case, the diaphragm has a size of about 700 mm × 1200 mm × 20 mm in width × length × thickness, respectively, and the low frequency vibration motor uses a power of 380 V and a frequency of about 900 to 3600 vpm at about 50 to 60 Hz. Emits a low frequency with a frequency of. In addition, the high frequency vibration motor uses a power source of 380V, and emits a high frequency having a frequency of about 200 Hz at a frequency of about 6000 to 12000 vpm. At this time, the centrifugal force of the low frequency and high frequency vibration motors is about 0.4 KN and 8.0 to 20.0 KN, respectively.

Subsequently, as shown in FIG. 2, the artificial basalt mixture subjected to the vibration process is compressed using a pressure plate having a weight of about 10 to 20 kg. In the present invention, when the artificial basalt mixture is cured as it is after vibration, the upper surface is not formed smoothly, and is compressed using a pressure plate having a flat surface. At this time, the handle may be formed on the upper portion of the pressure plate in order to easily perform the compression operation.

The compressed artificial basalt mixture is then cured. After curing for 2 to 3 hours from the initial curing, the curing temperature was raised to about 20 ℃ per hour to reach a temperature of about 60 to 65 ℃, and maintained for about 4 to 5 hours to maintain the strength of the artificial basalt mixture Keep it appropriate.

Then, a demolding process of separating the cured artificial basalt mixture from the mold is completed, as shown in FIGS. 5 and 6, a sidewalk or a road and a road boundary stone with a cover bottle attached to the front. Figure 5 is a photograph of a sidewalk or road boundary stone made of artificial basalt mixture according to the present invention, Figure 6 is a schematic cross-sectional view for explaining the dimensions of the sidewalk or road boundary stone shown in FIG.

5 and 6, a means the width of the top of the boundary stone chamfered on one side, r means the width of the chamfered, b represents the width of the bottom of the boundary stone, h is the height of the boundary stone L means the total length of the cuboid shaped boundary stone. The unit weight of each boundary stone is about 2280-2335 kg / m <3>. Further, the bending strength of each boundary stone is about 1890 to 6210 kgf, and the water absorption is about 4.3 to 4.9%. In the case of manufacturing the artificial basalt mixture according to the present invention as a pavement boundary stone, a and b in the dimensions of the pavement boundary stone are about 170 mm, 200 mm or 210 mm, respectively, and r is about 20 mm or 30 mm, h is about 200 mm, 250 mm or 300 mm. In addition, L may be selectively employed within 500 mm to 1000 mm.

In contrast, when the ophthalmic basalt mixture according to the present invention is manufactured as a road boundary stone, a and b are about 120 mm or 150 mm, r is about 10 mm, and h is about 120 mm, respectively. Or about 150 mm, and L may be selectively employed within 500 mm to 1000 mm. However, the dimension of such a sidewalk road boundary stone or a road boundary stone varies according to the installation position or the state of the road.

The following Table 2 compares the characteristics of the road boundary stone or the sidewalk made of artificial basalt mixture according to the present invention and the road boundary stone or the sidewalk made of natural basalt.

Table 2: Characteristic comparison between natural basalt boundary stones and artificial basalt boundary stones

division Natural Basalt Boundary Stone Artificial basalt boundary stone color Single color Various colors life span Lifespan is relatively long, but pollution, dust damage and maintenance are difficult Long lifespan, easy for pollution, dust and maintenance Environmental issues Severe deforestation Recycled waste-rock, stone dust, does not affect the environment. Beauty Difficult to implement various shapes Various shapes and shapes can be implemented burglar weakness Strong size Difficult to adjust Accurately adjustable Water absorption height lowness Manufacturing cost height lowness

Hereinafter, the building materials, such as road boundary stone or sidewalk boundary stone, which are made of the artificial basalt mixture according to the present invention, and a method of manufacturing the same, will be described in detail through preferred experimental examples of the present invention, but the present invention is limited by the following experimental examples. It is not limited or restricted.

Experimental Example 1

When using a 1m3 concrete fan mixer based on one batch unit, coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1245 kg / m 3, about 2 to 6 mm Sand with a particle size distribution of about 398㎏ / ㎥, stone powder having an average particle diameter of about 2 mm or less, about 398㎏ / ㎥, cement about 300㎏ / ㎥, iron oxide pigments for the appearance of black color about 9㎏ / ㎥ and admixture As a result, about 0.6 kg / m 3 of water reducing agent was mixed with about 120 kg / m 3 of water, and then, according to the above-described process, a sidewalk road boundary stone or road boundary stone having various dimensions was prepared. At this time, the mixing ratio of water to cement is 40% or less.

Table 3 shows the dimensions of the sidewalk or road boundary stone manufactured according to the present experimental example, Table 4 is the result of measuring the physical characteristics of the sidewalk or road boundary stone shown in Table 3.

Table 3: Dimensions of sidewalks or road boundary stones according to Experimental Example 1

designation Dimensions (unit: mm) a b h r L Psalter A ₁ 170 170 200 20 1000 A ₂ 200 200 250 30 1000 A ₃ 210 210 300 30 1000

In Table 3, the letters indicating the dimensions of each specimen are as described above. That is, for a cuboid sidewalk or road boundary stone with one side cut off, a is the width of the top, b is the width of the bottom, h is the height, r is the width of the cut portion, and L is the total length.

Table 4: Characteristics of sidewalks or road boundary stones according to Experimental Example 1

designation Characteristics Flexural strength (kgf) Absorption rate (%) Psalter A ₁ 1,890 4.9 A ₂ 3,280 4.7 A ₃ 5,064 4.8

As shown in Table 4, the sidewalk or road boundary stone according to the present experimental example has the same color and surface state as natural basalt, but has excellent mechanical strength of up to 5,064 kgf and a low absorption rate of about 4.8% on average. Or it can be utilized as a building material such as brick or sidewalk block as well as road boundary stone.

Experimental Example 2

Based on 1 batch unit, coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1245 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 478 kg / m 3, and about 2 mm or less Stone powder having an average particle diameter of about 318㎏ / ㎥, cement about 300㎏ / ㎥, iron oxide pigment for the appearance of black color about 9㎏ / ㎥ and admixture with about 0.6㎏ / ㎥ of water-reducing agent and about 120㎏ / ㎥ After mixing, a streetcar or road boundary stone having various dimensions was prepared according to the above-described process.

Table 5 shows the dimensions of the sidewalk or road boundary stone manufactured according to the present experimental example, Table 6 is the result of measuring the physical characteristics of the sidewalk or road boundary stone shown in Table 5.

Table 5: Dimensions of sidewalks or road boundary stones according to Experimental Example 2

designation Dimensions (unit: mm) a b h r L Psalter B ₁ 170 170 200 20 1000 B ₂ 200 200 250 30 1000 B ₃ 210 210 300 30 1000

In Table 5, the letters indicating the dimensions of each specimen are the same as in Experiment 1.

Table 6: Characteristics of sidewalks or road boundary stones according to Experimental Example 2

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter B ₁ 1,898 4.8 B ₂ 3,300 5.0 B ₃ 5,062 4.7

Referring to Tables 5 and 6, the sidewalk road boundary stone or road boundary stone according to the present experimental example has the same color and surface state as natural basalt, but has excellent mechanical strength of up to 5,062 kgf and low absorption rate of 4.9%. It can be used as a building material such as brick or sidewalk block as well as a boundary stone or road boundary stone.

Experimental Example 3

Based on 1 batch unit, coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1245 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 438 kg / m 3, about 2 mm or less Stone powder having an average particle diameter of about 358㎏ / ㎥, cement about 300㎏ / ㎥, iron oxide pigment for the appearance of black color about 9㎏ / ㎥ and admixture with water-reducing agent about 0.6㎏ / ㎥ with water of about 120㎏ / ㎥ After mixing, a walkway or road boundary stone specimen having various dimensions was prepared according to the process described above.

Table 7 shows the dimensions of the sidewalk or road boundary stone manufactured in accordance with the present experimental example, Table 8 is the result of measuring the physical characteristics of the sidewalk or road boundary stone shown in Table 7.

Table 7: Dimensions of sidewalks or road boundary stones according to Experiment 3

designation Dimensions (unit: mm) a b h r L Psalter C ₁ 170 170 200 20 1000 C ₂ 200 200 250 30 1000 C ₃ 210 210 300 30 1000

Table 8: Characteristics of sidewalks or road boundary stones according to Experimental Example 3

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter C ₁ 1,955 4.8 C ₂ 3,390 4.8 C ₃ 5,100 4.9

As shown in Tables 7 and 8, the sidewalk or road boundary stone according to the present experimental example has excellent mechanical strength of up to about 5,100 kgf and relatively good absorption of about 4.8%. Therefore, it can be utilized as a building material such as a sidewalk road boundary stone, road boundary stone, brick or sidewalk block.

Experimental Example 4

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1228 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 377 kg / m 3, and stone powder having an average particle diameter of about 2 mm or less, about 376 kg. / M 3, cement about 340 kg / m 3, black oxide color pigment about 10.2 kg / m 3, and admixture about 0.68 kg / m 3 of water reducing agent with about 130 kg / m 3 of water Pedestrian or road boundary stone specimens of various dimensions were prepared.

Table 9 shows the dimensions of the sidewalk or road boundary stone manufactured according to the present experimental example, Table 10 is the result of measuring the physical characteristics of the sidewalk or road boundary stone shown in Table 9.

Table 9: Dimensions of sidewalks or road boundary stones according to Experiment 4

designation Dimensions (unit: mm) a b h r L Psalter D ₁ 170 170 200 20 1000 D ₂ 200 200 250 30 1000 D ₃ 210 210 300 30 1000

Table 10: Characteristics of sidewalks or road boundary stones according to Experimental Example 4

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter D ₁ 1,900 4.8 D ₂ 3,300 4.9 D ₃ 5,062 4.7

Referring to Tables 9 and 10, the sidewalk or road boundary stone according to the present experimental example has excellent mechanical strength of up to about 5,062 kgf and relatively good absorption of about 4.8%. Therefore, it can be utilized as a building material such as a sidewalk road boundary stone, road boundary stone, brick or sidewalk block.

Experimental Example 5

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1228 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 452 kg / m 3, and stone powder having an average particle diameter of about 2 mm or less. / M3, cement about 340kg / m3, iron oxide pigment about 10.2kg / m3, and admixture with about 0.68kg / m3 of water reducing agent with about 130kg / m3 of water, and then Or road boundary stone specimens were prepared.

Table 11 shows the dimensions of the sidewalk or road boundary stone manufactured according to the present experimental example, Table 12 is the result of measuring the physical characteristics of the sidewalk or road boundary stone shown in Table 11.

Table 11: Dimensions of sidewalks or road boundary stones according to Experimental Example 5

designation Dimensions (unit: mm) a b h r L Psalter E ₁ 170 170 200 20 1000 E ₂ 200 200 250 30 1000 E ₃ 210 210 300 30 1000

Table 12: Characteristics of sidewalks or road boundary stones according to Experiment 5

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter E ₁ 1,910 4.6 E ₂ 3,370 4.7 E ₃ 5,098 4.6

Referring to Tables 11 and 12, the sidewalk road boundary stone or road boundary stone according to the present experimental example has excellent mechanical strength of up to about 5,098 kgf and relatively good absorption rate of about 4.6%, so the sidewalk road boundary stone, road boundary stone, brick or sidewalk block It can be used as a building material.

Experimental Example 6

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1228 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 415 kg / m 3, and stone powder having an average particle diameter of about 2 mm or less, about 338 kg / M3, cement about 340kg / m3, iron oxide pigment about 10.2kg / m3, and admixture with about 0.68kg / m3 of water reducing agent with about 130kg / m3 of water, and then Borderstone or road boundarystone specimens were prepared.

Table 13 shows the dimensions of the sidewalk or road boundary stone manufactured according to the present experimental example, Table 14 is the result of measuring the physical characteristics of the sidewalk or road boundary stone shown in Table 13.

Table 13: Dimensions of sidewalks or road boundary stones according to Experiment 6

designation Dimensions (unit: mm) a b h r L Psalter F ₁ 170 170 200 20 1000 F ₂ 200 200 250 30 1000 F ₃ 210 210 300 30 1000

Table 14: Characteristics of sidewalks or road boundary stones according to Experimental Example 6

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter E ₁ 1,920 4.7 E ₂ 3,320 4.6 E ₃ 5,100 4.9

Referring to Tables 13 and 14, the sidewalk road boundary stone or road boundary stone according to the present experimental example has excellent mechanical strength of up to about 5,100kgf and relatively good absorption rate of about 4.7%, so the sidewalk road boundary stone, road boundary stone, brick or sidewalk block It can be used as a building material.

Experimental Example 7

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1161 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 410 kg / m 3, and about 409 kg of stone powder having an average particle diameter of about 2 mm or less. / M3, cement about 316kg / m3, iron oxide pigment about 9.48kg / m3 and admixture with about 0.63kg / m3 of water reducing agent with about 120kg / m3 of water, and then Or road boundary stone specimens were prepared.

Table 15 shows the dimensions of the sidewalk or road boundary stone manufactured according to the present experimental example, Table 16 is the result of measuring the physical characteristics of the sidewalk or road boundary stone shown in Table 15.

Table 15: Dimensions of sidewalks or road boundary stones according to Experimental Example 7

designation Dimensions (unit: mm) a b h r L Psalter G ₁ 170 170 200 20 1000 G ₂ 200 200 250 30 1000 G ₃ 210 210 300 30 1000

Table 16: Characteristics of sidewalks or road blocks according to Experiment 7

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter G ₁ 2,000 4.9 G ₂ 3,540 4.6 G ₃ 5,240 4.7

Referring to Tables 15 and 16, the sidewalk road or road boundary stone according to the present experimental example has excellent mechanical strength of up to about 5,240 kgf and relatively good absorption rate of about 4.7%, so the sidewalk road boundary stone, road boundary stone, brick or sidewalk block, etc. It can be used as the same building material.

Experimental Example 8

Coarse aggregate having a particle size distribution of about 19-25 mm about 1161 kg / m 3, sand having a particle size distribution of about 2-6 mm about 450 kg / m 3, stone powder having an average particle diameter of about 2 mm or less about 369 kg / M3, cement about 316kg / m3, iron oxide pigment about 9.48kg / m3 and admixture with about 0.63kg / m3 of water reducing agent with about 120kg / m3 of water, and then Or road boundary stone specimens were prepared.

Table 17 shows the dimensions of the sidewalk road or road boundary stone manufactured according to the present experimental example, Table 18 is the result of measuring the physical properties of the sidewalk road boundary stone or road boundary stone shown in Table 17.

Table 17: Dimensions of sidewalks or road boundary stones according to Experimental Example 8

designation Dimensions (unit: mm) a b h r L Psalter H ₁ 170 170 200 20 1000 H ₂ 200 200 250 30 1000 H ₃ 210 210 300 30 1000

Table 18: Characteristics of sidewalks or road boundary stones according to Experimental Example 8

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter H ₁ 2,200 4.6 H ₂ 3,580 4.7 H ₃ 5,490 4.6

Referring to Tables 17 and 18, the sidewalk road or road boundary stone according to the present experimental example has excellent mechanical strength of up to about 5,490 kgf and a relatively good absorption rate of about 4.6%, so the sidewalk road boundary stone, road boundary stone, brick or sidewalk block, etc. It can be used as the same building material.

Experimental Example 9

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1161 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 491 kg / m 3, and stone powder having an average particle diameter of about 2 mm or less, about 400 kg. / M 3, cement about 316 kg / m 3, iron oxide pigment about 9.48 kg / m 3, and admixture with about 0.63 kg / m 3 of water reducing agent with about 120 kg / m 3 of water, followed by the above-mentioned process Road boundary stone specimens were prepared.

Table 19 shows the dimensions of the sidewalk road or road boundary stone manufactured according to the present experimental example, Table 20 is the result of measuring the physical properties of the sidewalk road boundary stone or road boundary stone shown in Table 19.

Table 19: Dimensions of sidewalks or road boundary stones according to Experiment 9

designation Dimensions (unit: mm) a b h r L Psalter I ₁ 170 170 200 20 1000 I ₂ 200 200 250 30 1000 I ₃ 210 210 300 30 1000

Table 20: Characteristics of sidewalks or road boundary stones according to Experiment 9

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter I ₁ 2,170 4.8 I ₂ 3,520 4.9 I ₃ 5,498 4.7

Referring to Tables 19 and 20, the sidewalk road or road boundary stone according to the present experimental example has excellent mechanical strength of up to about 5,498 kgf and a relatively good absorption rate of about 4.8%, so the sidewalk road boundary stone, road boundary stone, brick or sidewalk block, etc. It can be used as the same building material.

Experimental Example 10

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1156 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 408 kg / m 3, and stone powder having an average particle diameter of about 2 mm or less. / M3, cement about 324 kg / m3, iron oxide pigment about 9.72 kg / m3 and admixture with about 0.648 kg / m3 of water-reducing agent with about 120 kg / m3 of water, and then according to the above-described process Or road boundary stone specimens were prepared.

Table 21 shows the dimensions of the sidewalk or road boundary stone manufactured according to the present experimental example, Table 22 is the result of measuring the physical properties of the sidewalk or road boundary stone shown in Table 21.

Table 21: Dimensions of sidewalks or road boundary stones according to Experiment 10

designation Dimensions (unit: mm) a b h r L Psalter J ₁ 170 170 200 20 1000 J ₂ 200 200 250 30 1000 J ₃ 210 210 300 30 1000

Table 22: Characteristics of sidewalks or road boundary stones according to Experiment 10

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter J ₁ 2,200 4.5 J ₂ 3,720 4.8 J ₃ 5,600 4.6

Referring to Tables 21 and 22, the sidewalk road or road boundary stone according to the present experimental example has excellent mechanical strength of about 5,600 kgf and relatively good absorption rate of about 4.6%, so the sidewalk road boundary stone, road boundary stone, brick or sidewalk block, etc. It can be used as the same building material.

Experimental Example 11

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1156 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 448 kg / m 3, and about 367 kg of stone powder having an average particle diameter of about 2 mm or less. / M3, cement about 324 kg / m3, iron oxide pigment about 9.72 kg / m3 and admixture with about 0.648 kg / m3 of water-reducing agent with about 120 kg / m3 of water, and then according to the above-described process Borderstone or road boundarystone specimens were prepared.

Table 23 shows the dimensions of the sidewalk road boundary stone or road boundary stone manufactured according to the present experimental example, Table 24 is the result of measuring the physical properties of the sidewalk road or road boundary stone shown in Table 23.

Table 23: Dimensions of sidewalks or road boundary stones according to Experiment 11

designation Dimensions (unit: mm) a b h r L Psalter K ₁ 170 170 200 20 1000 K ₂ 200 200 250 30 1000 K ₃ 210 210 300 30 1000

Table 24: Characteristics of sidewalks or road boundary stones according to Experiment 11

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter K ₁ 2,240 4.6 K ₂ 3,814 4.8 K ₃ 5,672 4.5

Referring to Tables 23 and 24, the sidewalk road or road boundary stone according to the present experimental example has excellent mechanical strength of up to about 5,672kgf and a relatively good absorption rate of about 4.6%, so the sidewalk road boundary stone, road boundary stone, brick or sidewalk block, etc. It can be used as the same building material.

Experimental Example 12

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1156 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 489 kg / m 3, and stone powder having an average particle diameter of about 2 mm or less. / M3, cement about 324 kg / m3, iron oxide pigment about 9.72 kg / m3 and admixture with about 0.648 kg / m3 of water-reducing agent with about 120 kg / m3 of water, and then according to the above-described process Borderstone or road boundarystone specimens were prepared.

Table 25 shows the dimensions of the sidewalk road boundary stone or road boundary stone manufactured according to the present experimental example, Table 26 is the result of measuring the physical properties of the sidewalk road or road boundary stone shown in Table 25.

Table 25: Dimensions of sidewalks or road boundary stones according to Experiment 12

designation Dimensions (unit: mm) a b h r L Psalter L ₁ 170 170 200 20 1000 L ₂ 200 200 250 30 1000 L ₃ 210 210 300 30 1000

Table 26: Characteristics of sidewalks or road boundary stones according to Experiment 12

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter L ₁ 2,320 4.6 L ₂ 3,910 4.6 L ₃ 5,800 4.6

Referring to Tables 25 and 26, the sidewalk road or road boundary stone according to the present experiment has a very good mechanical strength up to about 5,800 kgf and a relatively good absorption rate of about 4.6%, so the sidewalk road boundary stone, road boundary stone, brick or sidewalk block It can be used as a building material.

Experimental Example 13

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1172 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 396 kg / m 3, and stone powder having an average particle diameter of about 2 mm or less, about 397 kg. / M3, cement about 333kg / m3, iron oxide pigment about 9.99kg / m3, and admixture with about 0.67kg / m3 of water reducing agent with about 120kg / m3 of water, and then Borderstone or road boundarystone specimens were prepared.

Table 27 shows the dimensions of the sidewalk road boundary stone or road boundary stone manufactured according to the present experimental example, Table 28 is the result of measuring the physical characteristics of the sidewalk road or road boundary stone shown in Table 27.

Table 27: Dimensions of sidewalks or road boundary stones according to Experimental Example 13

designation Dimensions (unit: mm) a b h r L Psalter M ₁ 170 170 200 20 1000 M ₂ 200 200 250 30 1000 M ₃ 210 210 300 30 1000

Table 28: Characteristics of sidewalks or road boundary stones according to Experiment 13

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter M ₁ 2,180 4.5 M ₂ 3,840 4.6 M ₃ 5,762 4.4

Referring to Tables 27 and 28, the sidewalk or road boundary stone according to the present experimental example has a very good mechanical strength of up to about 5,762kgf and a relatively good absorption of about 4.5%.

Experimental Example 14

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1172 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 436 kg / m 3, and stone powder having an average particle diameter of about 2 mm or less. / M3, cement about 333kg / m3, iron oxide pigment about 9.99kg / m3, and admixture with about 0.67kg / m3 of water reducing agent with about 120kg / m3 of water, and then Borderstone or road boundarystone specimens were prepared.

Table 29 shows the dimensions of the sidewalk road or road boundary stone manufactured according to the present experimental example, Table 30 is the result of measuring the physical characteristics of the sidewalk road boundary stone or road boundary stone shown in Table 29.

Table 29: Dimensions of sidewalks or road boundary stones according to Experimental Example 14

designation Dimensions (unit: mm) a b h r L Psalter N ₁ 170 170 200 20 1000 N ₂ 200 200 250 30 1000 N ₃ 210 210 300 30 1000

Table 30: Characteristics of sidewalks or road boundary stones according to Experimental Example 14

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter N ₁ 2,042 4.7 N ₂ 3,822 4.7 N ₃ 5,894 4.6

Referring to Tables 29 and 30, the sidewalk road boundary stone or road boundary stone according to the present experimental example has excellent mechanical strength of up to about 5,894 kgf and relatively good absorption of about 4.7%.

Experimental Example 15

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1172 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 457 kg / m 3, and stone powder having an average particle diameter of about 2 mm or less, about 318 kg. / M3, cement about 333kg / m3, iron oxide pigment about 9.99kg / m3, and admixture with about 0.67kg / m3 of water reducing agent with about 120kg / m3 of water, and then Borderstone or road boundarystone specimens were prepared.

Table 31 shows the dimensions of the sidewalk road boundary stone or road boundary stone manufactured according to the present experimental example, Table 32 is the result of measuring the physical characteristics of the sidewalk road or road boundary stone shown in Table 31.

Table 31: Dimensions of sidewalks or road boundary stones according to Experiment 15

designation Dimensions (unit: mm) a b h r L Psalter O ₁ 170 170 200 20 1000 O ₂ 200 200 250 30 1000 O ₃ 210 210 300 30 1000

Table 32: Characteristics of sidewalks or road boundary stones according to Experiment 15

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter O ₁ 2,022 4.6 O ₂ 3,894 4.7 O ₃ 5,900 4.6

Referring to Tables 31 and 32, the sidewalk road boundary stone or road boundary stone according to the present experimental example has a very good mechanical strength of up to about 5,900kgf and a relatively good absorption of about 4.6%.

Experimental Example 16

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1161 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 408 kg / m 3, and stone powder having an average particle diameter of about 2 mm or less. / M3, cement about 342kg / m3, iron oxide pigment about 10.26kg / m3 and admixture with about 0.68kg / m3 of water reducing agent with about 120kg / m3 of water, Borderstone or road boundarystone specimens were prepared.

Table 33 shows the dimensions of the sidewalk or road boundary stone manufactured according to the present experimental example, Table 34 is the result of measuring the physical characteristics of the sidewalk or road boundary stone shown in Table 33.

Table 33: Dimensions of sidewalks or road boundary stones according to Experiment 16

designation Dimensions (unit: mm) a b h r L Psalter P ₁ 170 170 200 20 1000 P ₂ 200 200 250 30 1000 P ₃ 210 210 300 30 1000

Table 34: Characteristics of sidewalks or road boundary stones according to Experiment 16

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter P ₁ 2,125 4.5 P ₂ 3,840 4.7 P ₃ 5,842 4.6

Referring to Tables 33 and 34, the sidewalk road boundary stone or road boundary stone according to the present experimental example has a very good mechanical strength of up to about 5,842kgf and a relatively good absorption of about 4.6%.

Experimental Example 17

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1161 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 449 kg / m 3, and stone powder having an average particle diameter of about 2 mm or less, about 367 kg. / M3, cement about 342kg / m3, iron oxide pigment about 10.26kg / m3 and admixture with about 0.68kg / m3 of water reducing agent with about 120kg / m3 of water, Borderstone or road boundarystone specimens were prepared.

Table 35 shows the dimensions of the sidewalk road boundary stone or road boundary stone manufactured according to the present experimental example, Table 36 is the result of measuring the physical characteristics of the sidewalk road or road boundary stone shown in Table 35.

Table 35: Dimensions of sidewalks or road boundary stones according to Experiment 17

designation Dimensions (unit: mm) a b h r L Psalter Q ₁ 170 170 200 20 1000 Q ₂ 200 200 250 30 1000 Q ₃ 210 210 300 30 1000

Table 36: Characteristics of sidewalks or road boundary stones according to Experiment 17

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter Q ₁ 2,200 4.7 Q ₂ 3,750 4.6 Q ₃ 5,794 4.5

Referring to Tables 35 and 36, the sidewalk road boundary stone or road boundary stone according to the present experimental example has a very good mechanical strength of up to about 5,794kgf and a relatively good absorption of about 4.6%.

Experimental Example 18

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1161 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 490 kg / m 3, and stone powder having an average particle diameter of about 2 mm or less, about 326 kg. / M3, cement about 342kg / m3, iron oxide pigment about 10.26kg / m3 and admixture with about 0.68kg / m3 of water reducing agent with about 120kg / m3 of water, Borderstone or road boundarystone specimens were prepared.

Table 37 shows the dimensions of the sidewalk road boundary stone or road boundary stone manufactured according to the present experimental example, Table 38 is the result of measuring the physical characteristics of the sidewalk road or road boundary stone shown in Table 37.

Table 37: Dimensions of sidewalks or road boundary stones according to Experiment 18

designation Dimensions (unit: mm) a b h r L Psalter R ₁ 170 170 200 20 1000 R ₂ 200 200 250 30 1000 R ₃ 210 210 300 30 1000

Table 38: Characteristics of sidewalks or road boundary stones according to Experimental Example 18

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter R ₁ 2,240 4.5 R ₂ 3,780 4.6 R ₃ 5,900 4.4

Referring to Tables 37 and 38, the sidewalk road boundary stone or road boundary stone according to the present experimental example has a very good mechanical strength of up to about 5,900kgf and a relatively good absorption of about 4.5%.

Experimental Example 19

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1142 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 403 kg / m 3, and stone powder having an average particle diameter of about 2 mm or less. / M3, cement about 353kg / m3, iron oxide pigment about 10.59kg / m3, and admixture with about 0.71kg / m3 of water reducing agent with about 120kg / m3 of water, and then Borderstone or road boundarystone specimens were prepared.

Table 39 shows the dimensions of the sidewalk road boundary stone or road boundary stone manufactured according to the present experimental example, Table 40 is the result of measuring the physical characteristics of the sidewalk road or road boundary stone shown in Table 39.

Table 39: Dimensions of sidewalks or road boundary stones according to Experimental Example 19

designation Dimensions (unit: mm) a b h r L Psalter S ₁ 170 170 200 20 1000 S ₂ 200 200 250 30 1000 S ₃ 210 210 300 30 1000

Table 40: Characteristics of sidewalks or road boundary stones according to Experiment 19

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter S ₁ 2,230 4.3 S ₂ 3,870 4.5 S ₃ 5,764 4.4

Referring to Tables 39 and 40, the sidewalk road boundary stone or road boundary stone according to the present experimental example has excellent mechanical strength of up to about 5,764 kgf and relatively good absorption rate of about 4.4%.

Experimental Example 20

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1142 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 443 kg / m 3, and stone powder having an average particle diameter of about 2 mm or less, about 363 kg. / M3, cement about 353kg / m3, iron oxide pigment about 10.59kg / m3, and admixture with about 0.71kg / m3 of water reducing agent with about 120kg / m3 of water, and then Borderstone or road boundarystone specimens were prepared.

Table 41 shows the dimensions of the sidewalk road or road boundary stone manufactured according to the present experimental example, Table 42 is the result of measuring the physical characteristics of the sidewalk road boundary stone or road boundary stone shown in Table 41.

Table 41: Dimensions of sidewalks or road boundary stones according to Experimental Example 20

designation Dimensions (unit: mm) a b h r L Psalter T ₁ 170 170 200 20 1000 T ₂ 200 200 250 30 1000 T ₃ 210 210 300 30 1000

Table 42: Characteristics of sidewalks or road boundary stones according to Experiment 20

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter T ₁ 2,197 4.5 T ₂ 3,892 4.3 T ₃ 5,910 4.3

Referring to Tables 41 and 42, the sidewalk road boundary stone or road boundary stone according to the present experimental example has a very good mechanical strength of up to about 5,910kgf and a good absorption rate of about 4.3%.

Experimental Example 21

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1142 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 484 kg / m 3, and stone powder having an average particle diameter of about 2 mm or less, about 322 kg. / M3, cement about 353kg / m3, iron oxide pigment about 10.59kg / m3, and admixture with about 0.71kg / m3 of water reducing agent with about 120kg / m3 of water, and then Borderstone or road boundarystone specimens were prepared.

Table 43 shows the dimensions of the sidewalk road boundary stone or road boundary stone manufactured according to the present experimental example, Table 44 is the result of measuring the physical characteristics of the sidewalk road or road boundary stone shown in Table 43.

Table 43: Dimensions of sidewalks or road boundary stones according to Experiment 21

designation Dimensions (unit: mm) a b h r L Psalter U ₁ 170 170 200 20 1000 U ₂ 200 200 250 30 1000 U ₃ 210 210 300 30 1000

Table 44: Characteristics of sidewalks or road boundary stones according to Experiment 21

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter U ₁ 2,320 4.5 U ₂ 3,800 4.4 U ₃ 5,980 4.3

Referring to Tables 43 and 44, the sidewalk road boundary stone or road boundary stone according to the present experimental example has a very good mechanical strength of up to about 5,980 kgf and a good absorption rate of about 4.4%.

Experimental Example 22

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1160 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 401 kg / m 3, and stone powder having an average particle diameter of about 2 mm or less. / M3, cement about 364kg / m3, iron oxide pigment about 10.92kg / m3 and admixture with about 0.73kg / m3 of water reducing agent with about 120kg / m3 of water, and then Borderstone or road boundarystone specimens were prepared.

Table 45 shows the dimensions of the sidewalk or road boundary stone manufactured according to the present experimental example, Table 46 is the result of measuring the physical characteristics of the sidewalk or road boundary stone shown in Table 45.

Table 45: Dimensions of sidewalks or road boundary stones according to Experimental Example 22

designation Dimensions (unit: mm) a b h r L Psalter V ₁ 170 170 200 20 1000 V ₂ 200 200 250 30 1000 V ₃ 210 210 300 30 1000

Table 46: Characteristics of sidewalks or road boundary stones according to Experimental Example 22

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter V ₁ 2,227 4.3 V ₂ 3,960 4.2 V ₃ 6,164 4.4

Referring to Tables 45 and 46, the sidewalk road boundary stone or road boundary stone according to the present experimental example has a very good mechanical strength of up to 6,164kgf and a good absorption rate of about 4.3%.

Experimental Example 23

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1160 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 441 kg / m 3, and stone powder having an average particle diameter of about 2 mm or less, about 361 kg. / M3, cement about 364kg / m3, iron oxide pigment about 10.92kg / m3 and admixture with about 0.73kg / m3 of water reducing agent with about 120kg / m3 of water, and then Borderstone or road boundarystone specimens were prepared.

Table 47 shows the dimensions of the sidewalk road or road boundary stone manufactured according to the present experimental example, Table 48 is the result of measuring the physical properties of the sidewalk road boundary stone or road boundary stone shown in Table 47.

Table 47: Dimensions of sidewalks or road boundary stones according to Experiment 23

designation Dimensions (unit: mm) a b h r L Psalter W ₁ 170 170 200 20 1000 W ₂ 200 200 250 30 1000 W ₃ 210 210 300 30 1000

Table 48: Characteristics of sidewalks or road boundary stones according to Experiment 23

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter W ₁ 2,321 4.4 W ₂ 3,999 4.3 W ₃ 6,187 4.3

Referring to Tables 47 and 48, the sidewalk road boundary stone or road boundary stone according to the present experimental example has a very good mechanical strength of up to about 6,187kgf and a good absorption rate of about 4.3%.

Experimental Example 24

Coarse aggregate having a particle size distribution of about 19 to 25 mm, about 1160 kg / m 3, sand having a particle size distribution of about 2 to 6 mm, about 481 kg / m 3, and stone powder having an average particle diameter of about 2 mm or less. / M3, cement about 364kg / m3, iron oxide pigment about 10.92kg / m3 and admixture with about 0.73kg / m3 of water reducing agent with about 120kg / m3 of water, and then Borderstone or road boundarystone specimens were prepared.

Table 49 shows the dimensions of the sidewalk or road boundary stone manufactured in accordance with the present experimental example, Table 50 is the result of measuring the physical characteristics of the sidewalk or road boundary stone shown in Table 49.

Table 49: Dimensions of sidewalks or road boundary stones according to Experiment 24

designation Dimensions (unit: mm) a b h r L Psalter X ₁ 170 170 200 20 1000 X ₂ 200 200 250 30 1000 X ₃ 210 210 300 30 1000

Table 50: Characteristics of sidewalks or road boundary stones according to Experiment 24

designation characteristic Flexural strength (kgf) Absorption rate (%) Psalter X ₁ 2,320 4.2 X ₂ 4,000 4.3 X ₃ 6,210 4.3

Referring to Tables 49 and 50, the sidewalk road boundary stone or road boundary stone according to the present experimental example has a very good mechanical strength of up to about 6,210kgf and a good absorption rate of about 4.3%.

According to the present invention, by-products such as waste-rock or stone powder can be used to manufacture building materials such as sidewalks or road boundary stones made of artificial basalt that can achieve the same color and shape as natural basalt. Damage to the natural environment can be minimized, and by-products such as stone powder can be used to recycle resources as much as possible. In addition, the method of manufacturing a sidewalk or road boundary stone made of artificial basalt according to the present invention can be used more widely because it is sufficiently applicable to other artificial rock development process.

Furthermore, building materials such as walkway boundary stone, road boundary stone, brick or sidewalk blocks, etc., which are widely available from artificial basalt with excellent strength while maintaining the same appearance and texture as natural basalt, can be produced at low cost. The building materials produced from these can be applied to a wider range of fields than natural basalts because of their various dimensions and colors.

In addition, the building material produced from the artificial basalt according to the present invention is excellent in mechanical properties and aesthetics compared to natural basalt, while the manufacturing cost is significantly lower, it is applicable to various civil, landscape and construction fields more economically.

As described above, the present invention has been described with reference to preferred experimental examples, but those skilled in the art can variously modify and devise the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. It will be appreciated that it can be changed.

Claims (10)

Pavement road and road boundary stone made of artificial basalt, characterized in that a plurality of irregular pores are formed on the surface in correspondence with a mold formed on the surface of the same irregular protrusions formed on the surface of the natural basalt. The method of claim 1, A sidewalk and road boundary stone made of artificial basalt, wherein a front end portion of the boundary stone is cut at a predetermined angle. The method of claim 2, The boundary stone has an upper longitudinal length of 120 to 210 mm, a lower longitudinal length of 120 to 210 mm, a transverse length of 500 to 1000 mm, a height of 120 to 300 mm and a width of a cut portion of 10 to 30 mm. Bochado-do road boundary stone made of artificial basalt. The method of claim 2, A sidewalk and road boundary stone made of artificial basalt, wherein a front cover of the boundary stone is attached to mark a road boundary. The method of claim 1, Pavement road and road boundary stone made of artificial basalt, characterized in that the mold is a silicone mold The method of claim 5, The silicon mold is a sidewalk and road boundary stone made of artificial basalt, characterized in that composed of a silicone and a curing agent. The method of claim 6, The said silicone mold is a sidewalk road and road boundary stone which consist of artificial basalt, characterized by mixing silicon and a hardening | curing agent in the ratio of 1: 1. delete delete delete