KR100754910B1 - Concrete paving blocks for side walk and road using waste stone and the making method thereof - Google Patents

Abstract

A concrete pavement block using waste stone and a manufacturing method thereof are provided to cut down the cost and to improve the adsorption and removal rate of air pollutants by using scarlet powder and anatase titanium oxide powder. A method for manufacturing concrete pavement blocks by using waste stone comprises: a step for forming a lower support layer by making crushed aggregates by collecting and crushing the waste stone, pouring a concrete composition into a pavement block mold, and then firstly vibrating, pressing, and compacting the concrete composition, wherein the concrete composition is produced by equally mixing 1400~2000kg/m^2 of the crushed aggregates with the size below 13mm, 400~800kg/m^2 of cement, and 80~200kg/m^2 of water, and adding 0.2~2.0wt.% admixture to the total weight percent of the cement; and a step for forming an upper colored layer by pouring a concrete composition to the upper side of the lower support layer and secondly vibrating, pressing, and compacting the concrete composition. The concrete composition for the upper colored layer is produced by equally mixing 1400~2000kg/m^2 of the crushed aggregates with the size below 3mm, 400~800kg/m^2 of cement, 20~300kg/m^2 of scarlet powder, and 80~200kg/m^2 of water, and adding 0.2~2.0wt.% admixture, 1~10wt.% anatase titanium oxide powder with a mean particle diameter of 10~150nm for improving photocatalytic function, and 1~10wt.% porous basalt crushed in a mean particle diameter of 30~100nm and basalt powder with a mean particle diameter of 75~200 micrometers for improving strength and color, to the total weight percent of the cement.

Description

Concrete paving blocks for side walk and road using waste stone and the making method

1 is a photograph of the removal test apparatus used in the nitrogen oxide removal test of the concrete sidewalk block according to the present invention

Figure 2 is a schematic diagram of the nitrogen oxide removal test of the concrete walkway block according to the present invention

Figure 3 is a photolysis efficiency graph of the concrete sidewalk block according to the present invention

Figure 4 is a graph of nitrogen oxide removal rate of the concrete walkway block according to the present invention

                     <Description of Symbols for Main Parts of Drawings>

10: sunlight

20: nitrogen oxide concentration measurement tube

30: acrylic chamber

40: air pump

50: sidewalk block test body

The present invention relates to the use of waste stone and stone sludge produced after the production of stone products such as flagstone or boundary stone by processing natural raw stones as aggregates, and to a concrete walkway block having improved photocatalytic function, strength and color. Collecting and crushing the waste stone generated during stone processing to produce a crushed aggregate, and mixed the crushed aggregate 1400 ~ 2000kg / ㎥, cement 400 ~ 800kg / ㎥, water 80 ~ 200kg / ㎥ of the aggregate maximum size less than 13mm 0.2 to 2.0% by weight of the admixture with respect to the weight of the cement is added and mixed into the lower part of the sidewalk block mold and the first vibration press compaction to form a lower support layer, crushed aggregate 1400 or less of the aggregate maximum dimension of the aggregate aggregate 1400 ~ 2000kg / ㎥, cement 400 ~ 800kg / ㎥, scarlet powder 20 ~ 300kg / ㎥, water 80 ~ 200kg / ㎥ mixed with 0.2 ~ 2.0% by weight of the cement 1 to 10% by weight of the anatase titanium dioxide powder having an average particle diameter of 10 to 150 nm was mixed with respect to the weight of the cement, and ground to an average particle diameter of 30 to 100 mm for strength and color improvement. Mix the porous basalt and the basalt fine powder with an average particle diameter of 75 ~ 200㎛ by 1 to 10% by weight based on the weight of the cement and mix the zeolite powder or Sukko powder with respect to the weight of the cement in order to improve the adsorption properties and reduce the unit quantity. It relates to a concrete sidewalk block using a waste stone, characterized in that it is prepared by mixing 3 ~ 3% by weight and put into the upper side of the sidewalk mold to form a top colored layer by the second vibration pressurized compaction.

In general, in the recycling of industrial by-products and industrial wastes, a huge investment in research was made in the field of recycling-related research from the late 1990s to 2005, and a legal and institutional basis was established. As a result, a considerable level of recycling technology and new products were developed. Although recycling research is a field that requires long-term research and efforts such as global warming and climate change issues, many industrial by-products and industrial wastes are still left and landfilled, especially in the production of stone products. There is also a tremendous amount of waste stone and stone powder sludge generated in the process every year, but there is no proper recycling plan except a small amount of stone powder is being recycled.

A study on the manufacture of interlocking blocks for sidewalks using recycled aggregates as a paper related to the manufacture of conventional interlocking blocks (Hong-Yeul Kim et al., Journal of the Architectural Institute of Korea, Vol. 13 No. 3, pp.335 -341, 1997), A Study on the Characteristics of Interlocking Blocks According to the Fly Ash Substitution Rate Conversion (Hancheon-gu et al., Journal of the Korean Concrete Institute, Vol. 10, No. 1, pp.99-104, 1998), Interlocking Influence of water-cement ratio and chemical admixture on the quality of blocks (Hancheon-gu et al., 4 people, Journal of the Korean Concrete Society, Vol. 10, No. 10, pp.157-160, 1998). Press block and manufacturing method thereof (Patent registration No. 10-0549973) and interlocking block using recycled aggregate and manufacturing method thereof (Patent registration No. 10-0533288) and sidewalk block using waste concrete and manufacturing method thereof ( Patent registration 10-0549973) and waste casting company A cement brick, a cement sidewalk block manufacturing method, and a composition thereof (Patent Application 10-2005-0032418), but 100% of the waste stone and stone sludge generated during the production of stone products such as flagstone or boundary stone by processing stone There are no sidewalk blocks produced by recycling them as aggregates.

On the other hand, in the functional concrete interlocking block using the scarlet powder of Patent Application No. 10-2005-0056773 filed by the applicant of the present application by adding and mixing the industrial by-product scarlet powder (Scarlet powder) to the concrete composition The sulfur oxides are adsorbed and removed, but in this case, the air pollutants are adsorbed only by titanium dioxide contained in the scarlet powder, and the absorption rate is high and the strength is relatively low. There was a problem that the adsorption removal rate of the material is lowered and easily damaged by external force.

The present invention is to improve the problems as described above by using 100% substitution of the existing aggregate (sand or crushed stone) as an industrial by-product substitute waste (sand or crushed stone) to reduce the cost and with a scarlet powder anatase (anatase) titanium dioxide The use of fine powder greatly improves the adsorption removal rate of air pollutants, and it is mixed with porous ground basalt and basalt fine powder, zeolite powder and scoria powder to increase the strength, increase the adsorption property, reduce the unit quantity, and improve the overall color. The purpose is to provide a concrete walkway block that satisfies durability, functionality, and design at the same time.

In order to achieve this purpose, it is collected and crushed waste stone produced during stone processing to produce a crushed aggregate, and crushed aggregate of less than the maximum aggregate size of 13mm, cement, water, admixture in a certain ratio by mixing The lower support layer was formed by putting it in the lower part and compacting the first vibration, and mixing the crushed aggregate, cement, scarlet powder, water, and admixture of the aggregate maximum dimension of 3mm or less in the crushed aggregate at a certain ratio, but improving the photocatalytic function ( anatase) Titanium dioxide fine powder, porous pulverized basalt and basalt fine powder for increased strength and color improvement, and zeolite powder or scoria powder for adsorbent improvement and unit quantity reduction are added and mixed in a proportion to the weight of the cement. Put on top of the sidewalk block mold and compacted the second vibration to form the upper colored layer Sound is characterized according to the present invention being made by welding.

The concrete walkway block according to the present invention relates to a concrete walkway block that uses waste stone and stone sludge generated by processing various stone products as a substitute for 100% aggregate and has improved photocatalytic function, strength, and color. Collecting and crushing the waste stone to produce a crushed aggregate and mixing the crushed aggregate 1400 ~ 2000kg / ㎥, 400 ~ 800kg / ㎥ of cement, 80 ~ 200kg / ㎥ of water with a maximum aggregate size of less than 13mm among the crushed aggregate uniformly 0.2 to 2.0% by weight of admixture was added to the mixed concrete composition into the sidewalk mold to form a lower support layer by compacting the first vibration, the aggregate of crushed aggregates 1400 ~ 2000kg / ㎥, cement 400 ~ 800kg / ㎥, scarlet powder 20 ~ 300kg / ㎥, water 80 ~ 200kg / ㎥ mixed with 0.2 ~ 2.0% by weight of the cement 1 to 10% by weight of the anatase titanium dioxide powder having an average particle diameter of 10 to 150 nm was mixed with respect to the weight of the cement, and ground to an average particle diameter of 30 to 100 mm for strength and color improvement. 1 to 10% by weight of porous basalt and basalt powder with an average particle diameter of 75 to 200 µm are mixed with respect to the weight of the cement, and zeolite powder or Sukko powder is mixed with the weight of the cement to increase the adsorption capacity and unit quantity. 3% by weight of the mixed concrete composition is added to the upper portion of the lower support layer and the second vibration pressure compaction to form an upper colored layer, and then added to the upper portion of the sidewalk block mold and the second vibration pressure compaction to form an upper colored layer. After curing, the concrete sidewalk block is manufactured and completed.

The crushed aggregate is used to process the natural raw materials to increase the economical and environmentally friendly by using 100% of the waste stone or stone powder sludge generated as a substitute for the aggregate produced from the processing and production of stone products such as various slabs or boundary stones. To collect the crushed aggregate using a conventional crusher, and to select the crushed aggregates crushed aggregate having a maximum aggregate size of 13mm or less is used to form the lower support layer of the concrete sidewalk block, crushed aggregate of the aggregate maximum dimension of 3mm or less Is used to form the upper colored layer of the concrete sidewalk block, the aggregates forming the lower support layer is used to maintain the high strength using the aggregate maximum dimension less than 13mm and the aggregate aggregate to form the upper colored layer 3mm aggregate maximum dimension The followings were used to smooth the texture of the surface exposed to the outside. , 1400 ~ 2000kg / ㎥ added and mixed to the composition forming the lower support layer and the upper colored layer, respectively.

In addition, the stone powder sludge is a powder of fine particles generated in the crushed sand or stone production processing plant, it is preferably added to improve the strength and texture of the sidewalk block, it is preferable to use an average particle diameter of 10 ~ 20㎛ and the lower support layer And 10 to 50% by weight of the crushed aggregate is added and mixed to the composition to form the upper colored layer, respectively, will be used to replace the stone powder sludge.

The cement is usually one or more cements selected from known cements such as portland cement, mixed cement, jet cement, and the like to be added to the composition forming the lower support layer and the upper colored layer, respectively, by adding 400 to 800 kg / m3. Therefore, special cements such as blast furnace slag cement, fly ash cement, and back cement can be used.

The water is a drinkable clean water to 80 to 200kg / ㎥ added to the composition to form the lower support layer and the upper colored layer, respectively, water-cement ratio (W / C) is to be maintained at 15 to 30% desirable.

The admixture is an AE reducing agent used as a chemical admixture used to reduce the unit quantity (을 水量) when concrete is mixed to improve strength and durability, the AE reducing agent is mainly used products such as lignin sulfonic acid or oxycarboxylic acid. In the present invention, 0.2 to 2.0% by weight of the AE reducing agent is added and mixed with respect to each cement weight, respectively, when the AE reducing agent is added to less than 0.2% by weight relative to the weight of each cement, the air entraining effect and water loss ( It is difficult to expect the strength improvement of the permeable concrete due to the lack of water effect, and when it exceeds 2.0% by weight with respect to the cement weight, the loss of slump over the elapsed time is large and the amount of air is excessively entrained to increase the strength of the concrete. In the present invention, by adding 0.2 ~ 2.0% by weight of AE reducing agent to the weight of cement, the water-cement It is such that with strength enhancement by lowering the (W / C) an improvement in the durability, such as freeze-thaw resistance, chemical resistance, abrasion resistance.

If necessary, the admixture may be used in place of an AE reducing agent instead of a high performance AE reducing agent. In this case, the high performance AE reducing agent may be used by selecting one or more of products such as polycarboxylic acid, melamine, and naphthalene.

The scarlet powder is a substance remaining when extracting sodium aluminate from the bauxite and has physical and chemical properties as shown in Table 1 below. In particular, as shown in Table 1, titanium dioxide (TiO ₂₎ existing artificial color content contained 9% it is possible to perform the photo-catalytic function of removing adsorbed contaminants such as nitrogen oxides (NO _X) in the air, the color is represented by the red color of natural of It shows natural natural red color without adding cows, and in the present invention, 20 to 300 kg / m 3 of scarlet powder is added and mixed only to the composition forming the upper colored layer corresponding to the surface portion of the sidewalk block. Allow adsorption through the bed.

<Table 1> Physical and Chemical Properties of Scarlet Powder

Items Scarlet powder    Chemical composition Al ₂ O ₃ 18-20 Fe ₂ O ₃ 36-43 SiO ₂ 8.1 TiO ₂ 9.0 CaO 5.9 Na ₂ O 5.8  PSD (μm) +46 μm (%) 14 -46 μm (%) 86 PSA 8.66 Color Red Moisture (%) 15% ± (5.0) Leachable Na ₂ O (%) 2-3 Loss on Ignition (%) 7.8 pH 11.0 Bulk Density (g / cm ³ ) 0.98 True Density (g / cm ³ ) 3.6 BET (m ² / g) 16-20

In addition, the present invention is to enhance the functionality by adding a photocatalytic function enhancer, strength and color improver, adsorptive improvement and unit quantity reducer to the concrete composition forming the upper colored layer.

As the photocatalytic function improving agent, an anatase titanium dioxide fine powder is used. The anatase titanium dioxide fine powder is an n-type semiconductor having a photocatalytic function by strong oxidation, and is exposed to electrons and electrons when subjected to ultraviolet rays. ) To form hydroxy radicals (-OH) and super oxides with strong oxidizing power, and these hydroxy radicals and super oxides oxidize and decompose organic compounds, which are pollutants in the air, into harmless water and carbon dioxide. In the present invention, the photocatalytic function of the scarlet powder is insufficient to compensate for this, and to add and mix 1 to 10% by weight based on the weight of the cement of the upper colored layer to perform a stronger photocatalytic function, wherein the anatase titanium dioxide fine powder is Use a particle diameter of 10 ~ 150nm and use an average particle diameter of more than 150nm In this case, there is a problem that the photocatalytic function is degraded.

As the strength increase and color improving agent, porous pulverized basalt and basalt fine powder are used. The porous basalt is mixed with the crushed aggregate due to its high strength and increases the strength of the aggregate and at the same time numerous pores are drilled. As the concrete composition interlocks between these pores, it exhibits a higher bonding force, thereby improving the durability of the concrete walkway block. The basalt fine powder is a fine powder generated during the crushing of the porous basalt, which has high strength. It is designed to complement the strength of the concrete composition, and mixed with basalt powder pulverized to a relatively large size with an average particle diameter of 30 to 100 mm, adding 1 to 10 wt% of the basalt fine powder with an average particle diameter of 75 to 200 μm based on the weight of the cement. The basalt and basalt fine powders have a weight ratio of 2.5 to 3: 0.5 to 1. At the same time as the Sikkim increase the strength of the completed press block form a unique sum of the colors and patterns, without the addition of extra additives to the colored to form an aesthetic visual report blocks.

The zeolite powder or Sukko powder is used as the adsorbent improvement and unit water reducing agent. The zeolite powder has strong adsorption and dehydration ability, so that it can adsorb harmful substances such as nitrogen oxides in the air. It is designed to improve the durability by reducing the number of units of the fine powder that is pulverized to an average particle diameter of 10 ~ 200㎛, the scoria powder is a kind of volcanic eruption, the clay is burned in a high heat fire It is porous and has reddish brown or blackish brown color and has high adsorption, deodorizing and air purifying function. Like zeolite, it can adsorb harmful substances such as nitrogen oxide in the air and improve the durability by reducing unit quantity. It is to be used in the form of powder that is pulverized to an average particle diameter of 1 ~ 5mm, By adding 0.5 to 3% by weight of zeolite powder or Sukko powder with respect to the amount, it improves the adsorptivity of the concrete composition forming the upper colored layer and reduces the number of units.

Preferred embodiments according to the present invention are as follows.

<Example 1>

Using the crushed aggregate, a concrete sidewalk block was manufactured by a two-touch method. First, the concrete composition that uniformly mixed crushed aggregate 1882kg / ㎥, the maximum aggregate aggregate dimensions of 882kg / ㎥, water 123kg / ㎥, water 123kg / ㎥, 1.5kg / ㎥ AE reducing agent (foot width 224mm, length 112mm, height) 67mm) at half height, and the first vibration press compaction to form the lower support layer, then the aggregate aggregate size of less than 3mm 1690kg / ㎥, ordinary Portland cement 600kg / ㎥, Scarlet Powder (KC, Korea) 120kg 30kg / ㎥ of anatase titanium dioxide fine powder (Cosmo Chemical Co., Ltd.) with an average particle diameter of 100 nm as a photocatalyst enhancer with / ㎥, water 120kg / ㎥, and AE reducing agent 1.8kg / ㎥. A concrete composition obtained by uniformly mixing 22 kg / m3 of porous basalt crushed stone with an average particle diameter of 50 mm and 8 kg / m3 of basalt fine powder having an average particle diameter of 100 μm was added to the top of the lower support layer at the other half of the sidewalk block mold. The second vibratory pressurized compaction formed an upper colored layer, and then cured at 45 ° C. for 30 minutes, followed by natural curing at room temperature for 28 days to complete a concrete sidewalk block of 220mm in width, 110mm in height and 60mm in height.

<Example 2>

Using the crushed aggregate, a concrete sidewalk block was manufactured by a two-touch method. First, a concrete block composition with a uniform aggregate of crushed aggregate 1676kg / ㎥, crushed sludge 206kg / ㎥, ordinary portland cement 490kg / ㎥, water 123kg / ㎥, and AE water reducer 1.5kg / ㎥ 224mm, 112mm in height, 67mm in height), and the first vibration pressurization compaction to form the lower support layer, then the aggregate aggregate size of less than 3mm 1014kg / ㎥, stone powder sludge 676kg / ㎥, ordinary portland cement 600kg / ㎥ , Scarlet Powder (KC, Korea) 120kg / ㎥, water 120kg / ㎥, AE water reducing agent 1.8kg / ㎥, as a photocatalytic functional enhancer, anatase titanium dioxide fine powder with an average particle diameter of 100nm , Korea) 22kg / ㎥ of porous basalt 22kg / ㎥ crushed with 30kg / ㎥ as strength and color improving agent and 8kg / ㎥ of basalt fine powder with average particle diameter of 100㎛ as average particle diameter as 3mm Crushed Scorry A concrete composition of 12 kg / m 3 of powder uniformly mixed is poured into the other half of the sidewalk block mold on the upper side of the lower support layer, followed by a second vibration pressurization to form an upper colored layer, and then cured for 30 minutes at 45 ° C. at room temperature. It cured for 28 days and completed a concrete sidewalk block 220mm wide, 110mm long and 60mm high.

<Comparative Example 1>

Using concrete crushed aggregate, concrete sidewalk blocks were manufactured by a two-touch method. First, the concrete composition that uniformly mixed crushed aggregate 1882kg / ㎥ of aggregate maximum size less than 13mm, ordinary Portland cement 490kg / ㎥, water 123kg / ㎥, AE water reducer 1.5kg / ㎥ is a sidewalk block mold (width 224mm, length 112mm, height) (67mm) at half height and the first vibration pressurization compaction to form the lower support layer, then the aggregate aggregate size of less than 3mm, 1690kg / ㎥ of aggregate, ordinary portland cement 600kg / ㎥, Scarlet Powder (KC, Korea) 120kg / M 3, water 120kg / ㎥, AE reducing agent 1.8kg / ㎥ uniformly mixed concrete composition into the upper half of the lower side of the sidewalk block mold and the second vibration pressure compaction to form an upper colored layer 45 After wet curing for 30 minutes at ℃, natural curing at room temperature for 28 days to complete a concrete sidewalk block 220mm wide, 110mm long, 60mm high.

Experimental Example 1

The concrete sidewalk blocks manufactured in Examples 1 and 2 and Comparative Example 1, respectively, were repeatedly measured five times in accordance with the absorption standard and bending strength test criteria of the sidewalk block for sidewalks in accordance with Korean Industrial Standard KSF4419. Shown in

<Table 2> Measurement of Absorption Rate and Flexural Strength of Walkway Blocks according to KSF4419

Absolute Dry Weight (g) Surface dry saturation weight (g) Absorption amount (g) Absorption rate (%) Flexural strength (N / ㎡) Example 1 3077 3255 178 5.78 7.8 Example 2 3095 3271 176 5.68 8.2 Comparative Example 1 3086 3264 178 5.77 6.4

As shown in <Table 2>, in the absorption rate, the press blocks of Examples 1 and 2 and Comparative Example 1 showed similar values, and all belonged to 3-6%, which is the Korean Industrial Standard, but there was no significant difference. The flexural strength of Example 1 showed a value slightly exceeding 5.0 N / mm 2 (more than 1.6 N / mm 2) of the Korean Industrial Standard, but the sidewalk blocks of Examples 1 and 2 according to the present invention are strength increasing agents and unit quantity reducing agents. The strength and durability were improved, and the flexural strength of 1.4-1.8 N / mm 2 higher than that of Comparative Example 1 was shown, indicating high strength.

Experimental Example 2

The nitrogen oxide removal test was performed using the concrete sidewalk blocks prepared in Examples 1 and 2 and Comparative Example 1, respectively. In the case of the NOx removal test, the standard for testing the photocatalytic effect was not suggested in Korea or abroad. 1 and 2 in a sealed acrylic chamber 30 (60 cm wide, 60 cm long, 60 cm high) of 1 cm thick as shown in Figures 1, 2 and 50 cm in the respective mixing ratio and method according to Comparative Example 1, A concrete walkway block test piece 50 having a height of 50 cm and a height of 8 cm was prepared and placed on the bottom of the acrylic chamber 30 to perform a photolysis experiment.

Experimental conditions were performed outdoors in the condition of solar 150 ± 10 Photon flux, temperature 20 ± 2 ℃, humidity 50 ± 10%, UV index 5.0 ± 0.5, injecting nitrogen oxide (NOx) gas into the acrylic chamber (30) 10 liters of air is blown through an air pump (40) to mix in advance so that the nitrogen oxide gas and oxygen in the acrylic chamber 30 are completely mixed and the concentration inside is 2 ppm. (APNA-360, Japan)) to measure the initial concentration, and then irradiated with sunlight (10) to put the nitrogen oxide concentration measurement tube 20 into the acrylic chamber 30 at an interval of 1 hour nitrogen oxide ( NOx) was measured (NOx Analyzer M200E, Teledyne Instruments).

In FIG. 3, Co is the initial concentration in the acrylic chamber 30, 2ppm, C means the concentration at the measurement time, and in the sidewalk block of Comparative Example 1, the photocatalytic effect is generated only by the scarlet powder, so that the treatment effect of nitrogen oxide is low. On the other hand, the sidewalk blocks of Examples 1 and 2, in which the scarlet powder and the anatase titanium dioxide fine powder were used together, can be seen that the nitrogen oxides (NOx) are almost removed in 2 hours. The photocatalyst showed the highest photolysis efficiency due to the photocatalytic effect of scarlet powder and fine powder of anatase titanium dioxide.

In addition, Figure 4 shows the NOx removal efficiency after the reaction 1 hour, the basic reduction rate of NOx by the adsorption reaction of the acrylic chamber 30 itself in the state in which the press block test body 50 is not installed in the acrylic chamber 30 It was about 3%, the adsorption reduction rate of Comparative Example 1 was 34%, the photocatalyst sidewalk block of Example 1 was 83%, and the photocatalyst sidewalk block (Example 2) using Sorkorea, an adsorption enhancer, showed 94% removal efficiency. It was. From the measurement results, it is determined that the sidewalk block according to the present invention performs a sufficient atmospheric purification function in the field.

As mentioned above, the sidewalk block according to the present invention has a kneading state in the form of dough, and is manufactured by the method of vibration and pressurization, so that the quality of the product is greatly influenced by the type and quality of the material. It is possible to recycle all of the waste stone and stone powder sludge generated in the process, so that efficient use of resources is possible, and the manufacturing cost is low, and the sidewalk block is produced by mixing various functional additives together with the waste stone and stone sludge at an optimum ratio. When the absorption rate meets the Korea Industrial Standard and the bending strength is high, the durability is high.The powerful photocatalytic action by the scarlet powder and the anatase titanium dioxide fine powder provides excellent NOx removal efficiency. It has the effect of reducing pollution, and with porous volcanic rock Porous adsorbents such as Korea and Zeolite powder can be used to supplement the strength and adsorption of air pollutants, and the existing sidewalk blocks are mostly gray, red, and green, and the color itself is represented by chemical pigments. Although not natural, scarlet powder in the present invention exhibits natural red color because it is extracted from natural bauxite, and its natural pattern is formed by porous volcanic rocks. This has the effect of indicating product preference.

Claims (6)

Collecting and crushing the waste stone generated during stone processing to produce crushed aggregate, and uniformly crushed aggregate 1400 ~ 2000kg / ㎥, cement 400 ~ 800kg / ㎥, water 80 ~ 200kg / ㎥ of the aggregate maximum dimension of 13mm or less uniformly The concrete composition mixed with 0.2 to 2.0% by weight of the admixture with respect to the weight of the cement was added to the sidewalk mold to form a lower support layer by crushing the first vibration, and the maximum aggregate size of the crushed aggregate is less than 3mm Aggregate 1400 ~ 2000kg / ㎥, Cement 400 ~ 800kg / ㎥, Scarlet Powder 20 ~ 300kg / ㎥, Water 80 ~ 200kg / ㎥ uniformly mixed 0.2 ~ 2.0% by weight of the admixture to the weight of the cement and photocatalyst function For improvement, fine powder of anatase titanium dioxide with an average particle diameter of 10 to 150 nm is mixed in an amount of 1 to 10% by weight based on the weight of the cement, and an average particle diameter of 30 to 100 mm for strength and color improvement. 1 to 10% by weight of the mixed porous basalt and the basalt fine powder having an average particle diameter of 75 to 200 µm are added to the cement weight. A concrete composition is added to the upper part of the lower support layer, and the upper vibration layer is formed to form an upper colored layer. Then, the method of producing a concrete sidewalk block using waste stone, characterized in that the curing is completed. The method of claim 1, wherein the concrete composition forming the lower support layer and the upper colored layer is a method for producing a concrete sidewalk block using waste stone, characterized in that 10 to 50% by weight of each crushed aggregate is replaced with stone sludge. . The concrete using waste stone according to claim 1, wherein the concrete composition forming the upper colored layer is mixed with zeolite powder or scoria powder in an amount of 0.5 to 3% by weight, based on the weight of cement, in order to improve the adsorption property and reduce the unit quantity. Method of manufacturing the sidewalk block. The method of claim 1, wherein the pulverized basalt and the basalt fine powder are mixed at a weight ratio of 2.5 to 3: 0.5 to 1. The method of claim 3, wherein the zeolite powder is a fine powder pulverized to an average particle diameter of 10 ~ 200㎛ and the Sukko powder is a powder state of the average particle size of 1 ~ 5mm characterized in that the concrete sidewalk block using waste stone Manufacturing method. Collecting and crushing the waste stone generated during stone processing to produce crushed aggregate, and uniformly crushed aggregate 1400 ~ 2000kg / ㎥, cement 400 ~ 800kg / ㎥, water 80 ~ 200kg / ㎥ of the maximum aggregate size of 13mm Mix the concrete composition, but add 0.2 ~ 2.0% by weight of admixture with respect to the weight of the cement, and add the mixed concrete composition to the sidewalk mold to form a lower support layer by compacting the first vibration, the aggregate maximum dimension of the crushed aggregate of less than 3mm Shred aggregates 1400 ~ 2000kg / ㎥, Cement 400 ~ 800kg / ㎥, Scarlet Powder 20 ~ 300kg / ㎥, Water 80 ~ 200kg / ㎥ mixed with 0.2 ~ 2.0% by weight of admixture with respect to the weight of the cement and improve the photocatalyst function For this purpose, anatase titanium dioxide fine powder having an average particle diameter of 10 to 150 nm is mixed with 1 to 10% by weight based on the weight of the cement and ground to an average particle size of 30 to 100 mm for strength and color improvement. A mixture of vaginal basalt and a basaltic powder with an average particle diameter of 75 to 200 µm in a weight ratio of 2.5 to 3: 0.5 to 1 is mixed in an amount of 1 to 10% by weight, based on the weight of the cement. The waste stone material, characterized in that the powder is added by mixing 0.5 ~ 3% by weight with respect to the weight of the cement is added to the upper portion of the lower support layer and the second vibration pressure compaction to form an upper colored layer and then curing Used concrete sidewalk blocks.

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