KR20190014396A - Blocks recycled from wastes generated during stone processing and their manufacturing methods - Google Patents

Abstract

The present invention relates to a block obtained by recycling the waste generated during stone processing, which has improved photocatalyst function, strength and color, and a manufacturing method of the block. The manufacturing method of the block comprises the steps of: collecting and crushing a waste stone material generated during stone processing to manufacture a crushed aggregate; performing first vibration pressing and tamping to form a lower support layer; mixing a mixing agent, crushed porous basalt, and basalt fine powder, zeolite powder or scoria powder; and performing second vibration pressing and tamping to form an upper colored layer, and then curing the same.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a block recycled from waste produced during the processing of stone,

Natural stone products are mainly used for road boundary stones and block blocks, which are waste stones and waste stones, which are byproducts produced in the manufacturing process of artificial aggregate and stone processing in Pisan. However, If left untreated, it will cause problems such as fugitive dust caused by the waste of stones, contamination of soil and groundwater due to illegal landfill, and leakage and sedimentation of waste segregation due to heavy rain during summer. In particular, when accumulated on the bottom of a nearby reservoir, a large amount of waste segregation will cause serious environmental pollution, which causes destruction of ecosystems such as agricultural water pollution and river fish deaths

A Study on the Fabrication and Performance Identification of Interlocking Blocks for Bump Roads Using Recycled Aggregate for the Manufacturing of Conventional Pressblocks (Journal of the Architectural Institute of Korea), A Study on Characteristics of Interlocking Blocks by Fly Ash Replacement Ratio (Korea Concrete Institute Conference And the effect of water-cement ratio and chemical admixture on the quality of interlocking block (Korea Concrete Institute Conference Paper), and press block using waste concrete and its manufacturing method (Patent Registration No. 10-0549973) Interlocking block using recycled aggregate and its manufacturing method (Patent Registration No. 10-0533288), press block using waste concrete and its manufacturing method (patent registration 10-0549973) and manufacturing method of cement block and cement press block using waste rubber material And its composition (patent application 10-2005-0032418), but it is produced by processing stone to produce stone product The sidewalk is produced by recycling waste stone and stone dust as the aggregate 100% substitution was not until now.

The present invention relates to a block having improved photocatalytic function, strength and color by using waste stone and stone sludge generated in the process of producing a stone product by processing natural stones for aggregate substitution and collecting waste stones generated during stone processing The crushed aggregate is crushed to produce crushed aggregate. Crushed aggregate having a maximum aggregate size of 13 mm or less, 1400 to 2000 kg / m 3 of magnesia phosphate complex, 200 to 400 kg / m 3 of fly ash, 200 to 400 kg / m 3 of crushed aggregate, And 80 to 200 kg / m < 3 > of water are mixed and then charged into a lower portion of a sidewalk block frame to form a lower support layer by primary vibration pressing to obtain a crushed aggregate having a maximum aggregate size of 3 mm or less and 1400 to 2000 kg / , The magnesia phosphate complex of 200 to 400 kg / m 3, the fly ash of 200 to 400 kg / m 3, 10 to 50 wt% of the crushed stone sludge crushed aggregate and 80 to 200 kg / m 3 of water, 0.2 to 2.0% by weight of an admixture is added to the weight of the fly ash and the sludge sludge, and the titanium dioxide fine powder is mixed with the magnesia phosphate complex in an amount of 1 to 10% by weight based on the weight of the fly ash and the sludge sludge to improve the photocatalytic function, And bases and basalt fine powder pulverized for improving color are mixed with the magnesia phosphate complex in an amount of 1 to 10 wt% based on the weight of the fly ash and the sludge sludge, and zeolite powder or scoria powder is mixed with the above magnesia 0.5 to 3% by weight based on the weight of the phosphate complex, fly ash, and sludge sludge is added to the upper part of the sidewalk block mold, and the secondary color is pressed and compaction to form an upper colored layer, followed by curing. Block using waste sludge sludge and its manufacturing method to be.

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to reduce the cost by replacing waste stone and stone dust with 100% of existing aggregate (sand or crushed stone aggregate) , And it is possible to improve the adsorption and removal efficiency by improving the strength and color, and to satisfy the durability, functionality, and design at the same time by adding porous crushed basalt and basalt fine powder together with zeolite powder and scoria powder. The purpose of the block is to provide.

In order to achieve this purpose, waste stone produced during stone processing is crushed to produce crushed aggregate. Crushed aggregate having a maximum aggregate size of 13 mm or less, magnesia phosphate complex, fly ash, stone sludge, water, The granulated aggregate having a maximum aggregate size of 3 mm or less and the granulated phosphate aggregate and the fly ash, the stone sludge, the scarlet powder, and the water are mixed with each other to form a lower support layer by applying primary vibration and pressure compaction. Anatase titanium dioxide fine powder for improving the photocatalytic function, porous crushed basalt and basalt fine powder for improving the strength and color, zeolite powder or scoria powder for improving the adsorption property and reducing the unit yield, To a predetermined ratio, And then putting it on the upper part of the mold and pressing the secondary vibration to compose the upper color layer, and then curing the upper color layer.

The present invention relates to a block having improved photocatalytic function, strength and color by using waste stone and stone sludge generated in the process of producing a stone product by processing natural stones for aggregate substitution and collecting waste stones generated during stone processing The crushed aggregate is crushed to produce crushed aggregate. Crushed aggregate having a maximum aggregate size of 13 mm or less, crushed aggregate of 1400 to 2000 kg / m 3, magnesia phosphate complex of 100 to 250 kg / m 3, fly ash of 100 to 250 kg / M 2 of water, 80 to 200 kg / m 3 of water, and then put into a lower part of a sidewalk block frame to form a lower support layer by compaction of primary vibration. 1400 to 2000 kg / m 3 of crushed aggregate having a maximum aggregate size of 3 mm or less, The fly ash is mixed with 100 to 250 kg / m 3 of fly ash, 100 to 250 kg / m 3 of fly ash, 100 to 250 kg / m 3 of sludge sludge and 80 to 200 kg / m 3 of water, 0.2 to 2.0% by weight of an admixture is added to the mixture. To improve the photocatalytic function, titanium dioxide fine powder is mixed with the magnesia phosphate complex at a weight ratio of 1 to 10% based on the weight of the fly ash and the sludge sludge. The pulverized porous basalt and basalt fine powder is mixed with the magnesia phosphate complex in an amount of 1 to 10% by weight based on the weight of the fly ash and the sludge sludge, and the zeolite powder or scoria powder is mixed with the magnesia phosphate complex and the fly ash 0.5 to 3% by weight based on the weight of the sludge sludge, putting it on top of the sidewalk block mold, compressing the secondary vibration to form an upper colored layer, and then curing the cured sludge. Manufacturing is completed.

The crushed aggregate is produced by processing natural stone to increase the economical efficiency and environmental friendliness by replacing waste stone or stone sludge generated in the processing of stone product with 100% for aggregate substitute. The waste stone is collected, The crushed aggregate having a maximum aggregate count of 13 mm or less is used for forming the lower support layer of the block, and the broken aggregate having a maximum aggregate count of 3 mm or less among the crushed aggregate is used for forming the upper colored layer of the block The crushed aggregate forming the lower supporting layer has a maximum aggregate count of 13 mm or less to maintain high strength and the crushed aggregate forming the upper colored layer has a maximum aggregate count of 3 mm or less so that the texture of the exposed surface And the composition for forming the lower support layer and the upper coloring layer was coated with 14 00 to 2000 kg / m < 3 >

In addition, the above-mentioned stone dust sludge is a powder made of fine particles generated in a stone production processing factory. It is preferably used to improve the strength and texture of the sidewalk block and has an average particle size of 10 to 20 탆, and quartz, feldspar, It is composed of 55.68% of silica, 19.63% of monocrystal, 2.38% of monoxide and 2.8% of iron oxide, and other small amount of minerals. And 10 to 50% by weight of the crushed aggregate are added to and mixed with the composition forming the upper colored layer

The magnesia phosphate complex exhibits excellent strength development, and the dry treatment exhibits a higher strength than the wet treatment. Regardless of the temperature, the adhesive strength of 28 days old exhibits a high strength of 3.0 MPa or more. As a result, the adhesive strength of the lower support layer and the upper colored layer 200 to 400 kg / m < 3 > are added to the composition forming the layer

When the fly ash is mixed with 20 to 30% of the concrete, the workability is improved and the hardening heat is lowered. In addition, since the long-term strength and water tightness are improved, the fly ash is used as an admixture for concrete. 200 to 400 kg / m < 3 > are added to the composition for forming the lower support layer and the upper colored layer with fly ash cement previously mixed with ash

The water is mixed with 80 to 200 kg / m.sup.3 of each of the composition for forming the lower support layer and the upper colorless layer with a degree of clean drinking water so that the water-magnesia phosphorus salt and the fly ash ratio are maintained at 15 to 30% desirable.

The AE water reducing agent is used as a chemical admixture capable of improving the economical efficiency by reducing the unit yield by the dispersing action or the air entraining action when mixing the admixture, The product is mainly used and 0.2 ~ 2.0 wt% of AE water reducing agent is added to the magnesia phosphate complex and the fly ash weight. If necessary, the high performance AE water reducing agent may be selected from at least one of aminosulfonic acid type, polycarboxylic acid type, melamine type, and naphthalene type.

Since the scarlet powder contains 9% of titanium dioxide as a residual material when extracting sodium aluminate from the bauxite, it can perform a photocatalytic function of adsorbing and removing contaminants such as nitrogen oxides in the air, The scarlet powder of 20 to 300 kg / m 3 is added only to the composition which forms the upper colored layer corresponding to the surface portion of the block and shows a natural red color without adding the existing artificial coloring matter, Allowing the contaminants to be adsorbed and removed through the upper colored layer.

The anatase is used as the photocatalytic function improving agent. Since it has the highest refractive index and the accurate particle size and dispersibility, it has excellent hiding power and coloring ability and is chemically and physically very stable. It shows excellent suitability, and it also has the great advantage of non-toxicity that does not affect organisms. Also, photocatalytic decomposition of an organic material without dissolving in an aqueous solution, an acid or a base solution is also suitable as a photocatalyst. The scarlet powder is insufficient in photocatalytic function and is mixed with the magnesia phosphate complex of the upper colored layer and 1 to 10% by weight with respect to the weight of the fly ash and the sludge sludge so that the photocatalyst function of the scarlet powder is insufficient to perform a strong photocatalytic function. When the one having an average particle diameter of more than 150 nm is used, the photocatalytic function is deteriorated.

Porous basalt and basalt fine powder are used as the strength increasing and color improving agent. The porous basalt has high self-strength and is mixed with the crushed aggregate to improve the strength of the aggregate, and a large number of pores are punched As the concrete composition is interlocked between the pores, a higher binding force is exhibited and durability of the block is improved. The basalt fine powder is a fine particle powder generated when the porous basalt is crushed, and the strength of the concrete composition is high. And basalt fine powder having an average particle size of 75 to 200 μm together with the basalt crushed to a comparatively large size having an average particle size of 30 to 100 mm is mixed with the magnesia phosphate complex in an amount of 1 to 10% by weight based on the weight of the fly ash and the sludge sludge , The pulverized basalt and basalt fine powders were 2.5 to 3 : 0.5 to 1 weight ratio to improve the strength of the finished block and to form a visually pleasing block by forming an intrinsic color and pattern without addition of a separate color additive.

The zeolite powder is mainly a silicate hydrate of aluminum, sodium and calcium and has a strong adsorption and dehydration property to improve the durability and has an average particle size of 10 to 200 탆 , And the scoria powder is a weakly alkaline volcanic eruption. It has fallen color, yellowish brown, black color and dark gray color. It is excellent in the absorption rate of heavy metal and eliminates E. coli. , A powdered state pulverized with an average particle size of 1 to 5 mm is used to improve the durability by reducing the unit yield by soundproofing effect and air purifying function, and zeolite powder is used as the weight of the magnesia phosphate complex, fly ash, Or 0.5 to 3% by weight of a scoria powder is added and mixed Improvement of adsorption property of concrete composition forming upper colored layer

And the unit yield.

The press block according to the present invention is manufactured in a non-beam state in which the kneaded material is kneaded due to the characteristics of the product and is manufactured by the method of vibration and pressurization so that the quality of the product is greatly influenced by the kind and quality of the material. It has excellent durability due to high bending strength of block by manufacturing various kinds of functional additives in optimum ratio and has high efficiency of removing nitrogen oxides by strong photocatalytic action. It is possible to reduce air pollution when installed in a city center where air pollution is serious due to vehicle It can reduce the cost of production by reducing 90% of the raw material cost, which is 30% of the manufacturing cost of the brick block, by using the porous adsorbent and can absorb the air pollutant. It improved the quality by 1.8 times more intensity than the block etc. More choices

Eco-friendly research that produces eco-friendly bricks and blocks by recycling waste stones of more than 1 million tons per year and asbestos waste of 4.8 million ㎥ per annum. It also includes environmental protection due to complete recycling of wastes and dramatic reduction of raw material costs. It is effective because it can solve the almost illegal treatment at present in terms of waste disposal and recycling technology

≪ Example 1 >

Completion of the first phase after step 1 and the second phase after step 2

<Experiment 1>

Results of water absorption and flexural strength measurement of the blocks of Examples 1 and 2 Fig. 3

Claims (2)

Masonry phosphate complex 200 to 400 kg / m 3, fly ash 200 to 400 kg / m 3, 10 to 50 wt% of crushed stone sludge crushed aggregate, 80 to 200 kg / m 3 of water, M.sup.3 and then put into a lower part of a sidewalk block frame to form a lower support layer by compaction of the primary vibration. The crushed aggregate having a maximum aggregate size of 3 mm or less and the crushed aggregate of 1400 to 2000 kg / m.sup.3, the magnesia phosphate complex of 200 to 400 kg / M 2, fly ash 200 to 400 kg / m 3, 10 to 50 wt.% Of the crushed stone sludge crushed aggregate and 80 to 200 kg / m 3 of water, wherein 0.2 to 2.0 wt.% Of the magnesia phosphate complex and the fly ash, And a titanium dioxide fine powder was mixed with the magnesia phosphate complex in an amount of 1 to 10% by weight based on the weight of the fly ash and the stone dust sludge in order to improve the photocatalytic function. The porous basalt and the basalt fine powder are mixed with the magnesia phosphate complex in an amount of 1 to 10 wt% based on the weight of the fly ash and the sludge sludge, and the zeolite powder or the scoria powder is mixed with the magnesia phosphate complex, fly ash, 0.5 to 3% by weight based on the weight of the sludge sludge is added to the upper part of the sidewalk block mold, the secondary color is pressed and compaction is performed to form an upper colored layer, and then cured. And manufacturing method thereof The method according to claim 1, wherein 10 to 50% by weight of the crushed aggregate is replaced with a stone sludge.

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