KR101269120B1 - Pattern block using unsintered inorganic binder and method for manufacturing thereof - Google Patents

Abstract

PURPOSE: A pattern block using a nonplastic inorganic binder and a manufacturing method thereof are provided to have an outstanding landscaping effect with the pattern block which has clear patterns through a brush polishing process, and to prevent a vehicle and a pedestrian from slipping on the pattern block by forming a high surface profile on the pattern block. CONSTITUTION: A manufacturing method for a pattern block using a nonplastic inorganic binder is composed of the following: a step of injecting a mixture for a base layer into a press molding machine; a step of firstly press-molding the mixture for the base layer which is injected into the press molding machine; a step of mixing a mixture for a surface layer in at least two mixers; a step of putting different pigments respectively into at least two mixers; a step of injecting the mixtures for the surface layer with different colors from each other into divided molding feeders; the step of secondly press-molding each mixture for the surface layer which is injected respectively into the divided molding feeders into the upper part of the press-molded mixture for the base layer which exists in the press molding machine; and a step of curing and drying the molded pattern block semi-finished product. [Reference numerals] (AA) Brush; (BB) Surface layer; (CC) Base layer

Description

Pattern block using unsintered inorganic binder and its manufacturing method

The present invention relates to a patterned block using a non-plastic inorganic binder and a method of manufacturing the same by polishing with a brush to improve the tensile strength and fatigue life, and to prevent the pedestrian and the vehicle from sliding by high surface roughness.

In general, a block is a kind of building material that is used for building floors, walls, sidewalks, driveways, retaining walls, etc., and it is manufactured using concrete. It can pollute the soil.

In addition, the conventional block is uniform in shape or inferior in vividness, so the landscaping property is poor during construction on sidewalks and driveways.

Although these blocks exhibit some degree of strength and fatigue life, they are not so good that the blocks wear or break after a certain amount of time. Therefore, the place where a lot of pedestrians or vehicles go by, because the block is replaced once a year or two years, not only waste of resources, but also costs a lot of labor costs, material costs and the like.

In addition, the conventional block is designed to be vulnerable to the anti-slip of pedestrians and vehicles, and when the surface of the block is wet due to rain or snow, water film phenomenon occurs according to the area where the foot surface of the pedestrian is in contact with the concrete block. The friction coefficient is significantly reduced between the bottom of the pedestrian's shoes and the surface of the concrete block, thereby causing slippery problems.

Recently, in order to prevent such slippage, there is a method of increasing the roughness on the surface of the block by spraying the washing water on the molded block before curing, but this method uses the washing water, which causes bleaching in the block. have.

In addition, the block covers most of the earth's surface, preventing water from naturally infiltrating into the ground, thereby drastically reducing the amount of groundwater, causing ground to subside and slowing the growth of trees and causing changes in the ecological environment of underground organisms. . In addition, when a heavy rain occurs, it is difficult to drain water, which causes a problem such as disturbing operation or even flooding of rivers.

Therefore, the block should be designed so that the water permeability such as rainwater easily penetrates into the ground because of excellent permeability.

Therefore, the surface has better clarity by improving the clarity of the pattern, the tensile strength is stronger than the conventional block, the fatigue life is extended, as well as the high surface roughness to prevent the slip of the vehicle or pedestrian, and the water permeability Excellent blocks are required.

Korean Patent Registration No. 0861328 Korean Patent No. 1111266 Korean Registered Patent No. 083777

An object of the present invention is to provide a patterned block formed of a base layer and a surface layer and both layers using a non-plastic inorganic binder.

In addition, another object of the present invention to provide a method for manufacturing the pattern block.

Method for producing a patterned block of the present invention for achieving the above object of the present invention comprises the steps of: (A) injecting a mixture for the base layer comprising a non-plastic inorganic binder, aggregate, strength enhancer and vermiculite in a compression molding machine; (B) primary compression molding the mixture for the base layer injected into the compression molding machine; (C) mixing a mixture for the surface layer comprising non-plastic inorganic binder, aggregate, strength enhancer, sand, loess and petrofoam extract in two or more mixers; (D) injecting different pigments into each of the two or more mixers of step (C); (E) injecting the mixture for the surface layer of the different colors passed through the step (D) to the divided molding feeder; (F) secondary compression molding by injecting a mixture for each surface layer injected into the divided molding feeder on top of the compression molded base layer mixture present in the compression molding machine; And (G) curing the patterned block semi-finished product molded in the step (F).

The non-plastic inorganic binder is 70 to 80% by weight of blast furnace slag, 5 to 10% by weight of red mud, 1 to 5% by weight ore selected from the group consisting of quartz, senidine, feldspar and albite, 10 to 20% by weight of gypsum %, 0.5 to 2% by weight aluminum sulfate, 0.5 to 1% by weight quicklime or hydrated lime, 0.5 to 3% by weight limestone and 0.5 to 2% by weight crude.

The method may further include processing the surface of the block surface layer having the unevenness formed in step (G) with a brush.

The strength enhancer includes all of the following components (a) to (d) and may be included in an amount of 0.5 to 10 parts by weight based on 100 parts by weight of the non-plastic inorganic binder:

(a) 20 to 50% by weight of polyethylene resin,

(b) 5 to 30% by weight of ethylene vinyl acetate resin or elastomer resin

(c) 15 to 30% by weight of petroleum resin

(d) 1 to 20% by weight of organic acid.

The strength enhancer may further include 0.1 to 10% by weight of a chain cutting inhibitor.

The aggregate is a crushed aggregate and recycled aggregates having an average particle size of any one of 25 to 50 mm, 20 to 25 mm, 15 to 20 mm, 8 to 13 mm or 1 to 3 mm in size. The unit weight may be 1350 to 1450 kg / m ³ mixed in a weight ratio of either: 3 or 3: 7.

The recycled aggregate may be at least one selected from the group consisting of waste concrete, waste ceramics, waste tiles, waste boards, and waste panels.

The elastomer resin of the strength enhancer may be a resin including one or two or more selected from the group consisting of butadiene rubber, chloroprene rubber, styrene butadiene rubber, ethylene propylene diene rubber, ethylene propylene rubber and isoprene rubber.

The petroleum resin of the strength enhancer may be a rosin-based resin or terephen resin.

The organic acid of the strength enhancer may be at least one selected from the group consisting of adipic acid, fumaric acid, fish acid, stearic acid, oleic acid, pilmic acid, lauryl acid, (male) anhydride, and (anhydride) terephthalic acid.

In the mixture for the surface layer and the mixture for the base layer, an additional composition including all of the following components (i) to (iii) may be further included in an amount of 5 to 7 parts by weight based on 100 parts by weight of the non-plastic inorganic binder:

(i) blast furnace slag Cement, blast furnace slag, calcined ocher and unit weight containing 100-325 mesh particle size, mixed with at least one selected from the group consisting of slaked lime, kaolin, metakaolin and waste glass regenerated powder Binders of 450-490 kg / m ³ ;

(Ii) 1 to 1.5 parts by weight of a water reducing agent (SP) based on 100 parts by weight of the binder; And

(Iii) 25 to 30 parts by weight of water based on 100 parts by weight of the binder.

The binder is selected from the group consisting of 20 to 60 parts by weight of blast furnace slag, 20 to 70 parts by weight of calcined ocher slag, 5 to 50 parts by weight of calcite and kaolin, kaolin, metakaolin and waste glass regeneration powder based on 100 parts by weight of blast furnace slag cement. One or more may be mixed in an amount of 20 to 80 parts by weight.

In addition, the patterned block using the non-plastic inorganic binder of the present invention for achieving the above another object is a base layer comprising a non-plastic inorganic binder, aggregate, strength enhancer and vermiculite; And

A surface layer including a non-plastic inorganic binder, aggregate, strength enhancer, sand, two or more pigments, ocher and petrofoam extracts, formed on top of the base layer, formed with divided patterns of different colors, and processed into a brush; As consisting of,

The non-plastic inorganic binder is 70 to 80% by weight of blast furnace slag, 5 to 10% by weight of red mud, 1 to 5% by weight ore selected from the group consisting of quartz, senidine, feldspar and albite, 10 to 20% by weight of gypsum %, 0.5 to 2% by weight aluminum sulfate, 0.5 to 1% by weight quicklime or hydrated lime, 0.5 to 3% by weight limestone and 0.5 to 2% by weight crude.

The strength enhancer includes all of the following components (a) to (d) and may be included in an amount of 0.5 to 10 parts by weight based on 100 parts by weight of the non-plastic inorganic binder:

(a) 20 to 50% by weight of polyethylene resin,

(b) 5 to 30% by weight of ethylene vinyl acetate resin or elastomer resin

(c) 15 to 30% by weight of petroleum resin

(d) 1 to 20% by weight of organic acid.

The aggregate is a crushed aggregate and recycled aggregates having an average particle size of any one of 25 to 50 mm, 20 to 25 mm, 15 to 20 mm, 8 to 13 mm or 1 to 3 mm in size. The unit weight may be 1350 to 1450 kg / m ³ mixed in a weight ratio of either: 3 or 3: 7.

The patterned block of the present invention is excellent in tensile strength and extended fatigue life compared to the case of the short pinning process or the surface polishing process using water by brushing to prevent breakage and wear of the block, thereby preventing the pattern block Can be used for a long time, avoiding waste of resources and reducing costs.

In addition, the patterned block of the present invention, the surface of the surface layer is more clear due to the brush polishing process, has excellent landscaping properties, and can form a high surface roughness to prevent the slip of the vehicle or pedestrian, and excellent water permeability 6 No chromium or the like is released.

1 is a plan view of a patterned block manufactured according to an embodiment of the present invention.
Figure 2 is a schematic diagram showing a process of polishing with a brush in accordance with an embodiment of the present invention.

The present invention relates to a patterned block using a non-plastic inorganic binder and a method of manufacturing the same by polishing with a brush to improve the tensile strength and fatigue life, and to prevent the pedestrian and the vehicle from sliding by high surface roughness.

Hereinafter, the present invention will be described in detail.

The patterned block of the present invention consists of a base layer and a surface layer, and exhibits a fatigue life of 4000-4500 Nf and a surface roughness of 8.5-9.0 μm.

The base layer of the patterned block of the present invention is formed of a mixture comprising (a) non-plastic inorganic binder, (b) aggregate, (c) strength enhancer and (d) vermiculite, and the surface layer is (a) non-plastic inorganic binder, ( b) aggregate, (c) strength enhancer, (e) sand, (f) pigment, (g) ocher and (h) petroform extract.

(a) Non-plastic  weapon Binders

The non-plastic inorganic binder is (a-1) blast furnace slag, (a-2) red mud, (a-3) ore, (a-4) gypsum, (a-5) aluminum sulfate, (a-6) quicklime or It is produced including slaked lime, (a-7) limestone and (a-8) crude economy.

The blast furnace slag (a-1) is generated as a by-product from steel mills, generating about 8.5 million tons per year. It is therefore less expensive and easier to purchase than conventional Portland cement.

The content of such blast furnace slag is 70 to 80% by weight, preferably 70 to 75% by weight. If the blast furnace slag content is out of the above range, the mechanical strength may be lowered.

The red mud (a-2) is a byproduct alkaline earth metal compound rich in ceramics such as alumina (Al ₂ O ₃ ), titanium dioxide (TiO ₂ ), and the like, and is used to supply Na ions necessary for blast furnace slag to hydrate. This red mud is the sludge extracted from the bauxite raw material by the Bayer method (a method of extracting aluminum hydroxide by adding sodium hydroxide (NaOH) to the raw material containing a large amount of alumina). It is a fine powder having a size of 20 μm and is produced in a sludge form (dough form) having a water content of about 30%. However, the Bayer method, namely 'Al ₂ O ₃ + 2NaOH → 2NaAlO ₂ + H ₂ O', uses red sodium (NaOH) at a high concentration to calculate red mud with a strong alkalinity of hydrogen ion concentration (pH) of 12 or more. Therefore, sodium hydroxide (NaOH) remaining in the red mud sludge generates bleaching and cracking, which adversely affects the aesthetics and structural strength of the building.

Red mud, which exhibits the above-mentioned problems, forms a dense skeletal structure when mixed with at least one ore and aluminum sulfate (preferably aluminum sulfate containing crystal water) selected from the group consisting of quartz, senidine, feldspar and albite. The strength of the block is enhanced and whitening and cracking do not occur.

The content of the red mud is 5 to 10% by weight, and if the content is less than 5% by weight, the red mud may not have improved strength. If the content is more than 10% by weight, whitening and cracking may occur.

One or more ore ores selected from the group consisting of (a-3) quartz, senidine, feldspar and albite may improve the strength of the block because of excellent breathability, water retention, and strength. The smooth life can be extended. In addition, the ore used in the present invention is an alkaline ore can further improve the strength of the block by mixing with blast furnace slag, red mud, aluminum sulfate, so that whitening and cracks do not occur. At this time, the pore size of the ore is variable according to the thickness of the ore, so the thickness of the ore is 1 to 2.5 mm in consideration of the permeability.

The amount of the ore is 1 to 5% by weight, when the content is less than 1% by weight, strength, moisture retention and breathability may decrease, bleaching and cracking may occur, and the strength may greatly decrease with age. If the content is more than 5% by weight, the strength may be lowered.

The gypsum (a-4) is natural or desulfurized gypsum, and can be used in any form such as dihydrate, hemihydrate, type III anhydrous or type II anhydrous. Moreover, waste phosphate gypsum, which is currently classified as general waste, is discharged more than 2 million tons per year as a by-product from domestic fertilizer factories, and about 20 million tons of waste gypsum is stored in stockyards. Therefore, the problem of the treatment of waste gypsum has emerged as a serious problem, in the present invention can be easily used through a simple pretreatment such as neutralization or calcination.

In the present invention, 10 to 20% by weight of gypsum is mixed to destroy the acid film of the slag to elute the modified ions, and in particular, reacts with the alumina component inside the slag, etringite (Calcium Sulfur Aluminat: 3CaO. A large amount of Al ₂ O ₃ · 3CaSO ₄ · 32H ₂ O) is generated to form a network matrix by needle-like erythrite to express strength.

In this case, when the gypsum is mixed to less than 10% by weight, the strength of the non-plastic inorganic binder is not sufficiently expressed, which is due to the lack of the amount of gypsum capable of completely converting the C ₃ A component contained in the blast furnace slag into ethringite. This is because the extra C ₃ A component reacts with water to produce calcium hydrate aluminate or with gypsum in the already produced ethringite, resulting in monocellates with much lower strength expression than ethringite. On the contrary, when the gypsum is excessively mixed, the excess gypsum, which cannot react with the blast furnace slag, is present in a cohesive state between the hydration products and thus weakens their binding strength, and thus the strength is lowered.

The aluminum sulfate (a-5) is commercially available (so-called 17% aluminum sulfate-17% Al ₂ O ₃ , or about 57% Al (SO ₄ ) ₂ ) as anhydrous aluminum sulfate or aluminum sulfate containing crystal water. It may be used, the impurities contained therein does not have any effect on the present invention. Aluminum sulfate not only promotes the reaction of blast furnace slag due to slight heat generation in the inorganic binder, but also blocks the alumina component in the blast furnace slag by reacting with gypsum to form a hydrate-based hydrate, forming a dense skeleton structure. It can increase the strength of.

The content of aluminum sulfate is 0.5 to 2% by weight, when the content is more than 2% by weight, it is possible to drastically reduce the fluidity initially and to significantly reduce the strength with age.

The quicklime or slaked lime (a-6) is produced in large quantities in Korea as a low-cost industrial product, and in the present invention, it is possible to express sufficient strength by mixing 0.5 to 1% by weight. Since the solubility of lime is 1.13g / l at 25 ° C and 1.25g / l at 20 ° C, strong alkalinity can be exhibited even with a small amount. Therefore, strong alkali action (pH> 12.5) is rapidly broken to elute SiO ₄ ^{2 -} or Al ₂ O ₃ that was enclosed therein. Eluted SiO ₄ ^{2 −} and Al ₂ O ₃ ions react with gypsum to produce hydrates. The reaction proceeds vigorously initially, but then slowly. If it is added in excess of 1% by weight, the solubility of lime is low so that it is supersaturated quickly and precipitates as crystals. Since the crystals of calcium hydroxide have no strength, in the presence of excess, the higher the amount of crystals, the lower the compressive strength.

Thus, red mud, quartz, gypsum, quicklime or calcareous lime, and aluminum sulfate are added to the blast furnace slag in accordance with the above ratio, and 0.5-3% by weight of limestone and 0.5-2% by weight of crude economy are added thereto as a physical property enhancer. And strength.

First, when 0.5 to 3% by weight of fine limestone powder is mixed, the strength is increased by about 5 to 10%. Not only does this fill the pores generated in the hydration reaction of the blast furnace slag to increase the degree of stealth, but some of them replace the sulfate in ethringite to form crystals, while the substituted sulfate promotes the reaction of the blast furnace slag. to be. However, the addition of limestone in excess of 3% by weight shows little effect.

In addition, the initial strength is increased by about 5 to 7% by the addition of crude economy, because it promotes the hydration reaction of blast furnace slag by the addition of crude economy. As crude economy, calcium chloride, water glass, sodium carbonate and the like can be used in powder form or dissolved in water. The crude economy added is 0.5 to 2% by weight, and even if the excess amount is added, the effect is hardly enhanced.

As described above, the present invention is a mixture of blast furnace slag, red mud, quartz, gypsum, quicklime or calcined lime, aluminum sulfate, limestone and crude economy, the mixture of the mixture in a ball mill or tube mill to a powder of 4,000 to 6,000 cm 2 / g By grinding, the non-plastic inorganic binder according to the present invention is prepared.

According to the present invention, the non-plastic inorganic binder composed mainly of blast furnace slag can be prepared only through mixing and pulverization without firing, and can exhibit excellent strength at early and long-term ages.

(b) aggregate

Aggregate used in the present invention can be used in both the base layer and the surface layer of the pattern block to improve the water permeability by further forming a plurality of voids, it can have an anti-slip effect by forming irregularities in the surface layer.

The aggregate is a crushed aggregate and recycled aggregates having an average particle size of any one of 25 to 50 mm, 20 to 25 mm, 15 to 20 mm, 8 to 13 mm or 1 to 3 mm in size. It is preferable that unit weight is 1350-1450 kg / m <^3> as it mixes by the weight ratio of either: 3 or 3: 7.

The recycled aggregate may be one kind or two or more kinds selected from the group consisting of waste concrete, waste ceramics, waste tiles, waste boards, and waste panels.

The content of such aggregates is mixed in an amount of 40 to 60 parts by weight based on 100 parts by weight of the non-plastic inorganic binder, but when the content of the aggregate is less than 40 parts by weight, the drainage area is not wide and the permeability may be reduced and unevenness may not be formed in the surface layer. In case of more than 60 parts by weight, the mechanical strength may be lowered.

(c) strength enhancers

Strength enhancers used in the present invention are used in both the base layer and the surface layer of the patterned block to increase resistance to permanent deformation at low and high temperatures (eg summer and winter temperatures) without blocking voids. Strength enhancers can reduce the permanent deformation by hardening the block, such as reducing the viscoelastic behavior and thus reducing the deformation or increasing the stiffness of the block. Increasing the stiffness means increasing the dynamic stiffness of the block to increase the load distribution capacity of the material, structural strength and life.

The content of the strength enhancer is 0.5 to 10 parts by weight with respect to 100 parts by weight of the non-plastic inorganic binder, when the content is less than 0.5 parts by weight can not exhibit the properties of the strength enhancer, when the content is greater than 10 parts by weight of the block Mechanical strength may be lowered.

The strength enhancer is (c-1) 20 to 50% by weight of polyethylene resin, (c-2) 5 to 30% by weight of ethylene vinyl acetate resin or elastomer resin, (c-3) 15 to 30% by weight of petroleum resin and (c -4) preferably 1 to 20% by weight of organic acid.

Since the (c-1) polyethylene resin consists only of carbon and hydrogen, it reacts with an organic acid to form a network structure. The organic acid captures and deodorizes hydrogen of the polyethylene resin to form polyethylene networks with each other. The polyethylene resin network then imparts elasticity to the block and suppresses the phenomenon in which the polyethylene resin floats up due to density differences at high temperatures, such as phase separation.

If the content of the polyethylene resin is less than 20% by weight it is not possible to impart elasticity to the block or to suppress the phase separation phenomenon, when the content is more than 50% by weight may reduce the strength of the block.

The (c-2) ethylene vinyl acetate resin or the elastomer resin may impart elasticity to the block to prevent the occurrence of cracks or breakage of the block from an impact generated from the outside.

Specific examples of the elastomer resin include butadiene rubber, chloroprene rubber, styrenebutadiene rubber, ethylene propylene diene rubber, ethylene propylene rubber and isoprene rubber. rubber) is one or two or more resins selected from the group consisting of.

If the content of the ethylene vinyl acetate resin or elastomer resin is less than 5% by weight can not impart elasticity to the block, if the content is more than 30% by weight deformation may occur after curing.

The (c-3) petroleum resin is a function of improving the adhesive strength of the block and the softening point, viscosity, and the like of high temperature properties, and specific examples thereof include rosin resins and terephen resins. use.

If the content of the petroleum resin is out of the above range, the physical properties may be reduced.

The organic acid (c-4) is used to improve the binding strength between the aggregate and the strength enhancer and to uniformly disperse the mixture for the front part or the back part, and specific examples thereof include adipic acid, fumaric acid, oxalic acid, stearic acid, oleic acid and pilmic acid. , Lauryl acid, maleic anhydride and terephthalic anhydride, and the like, and one or two or more thereof are used.

If the content of the organic acid is less than 1% by weight can not exhibit the characteristics of the organic acid, if the content is more than 20% by weight deformation may occur after curing.

Strength enhancer used in the present invention may further comprise 0.1 to 10% by weight of a chain cutting inhibitor.

As the chain cutting inhibitor prevents the cleavage of the molecular chain as the reaction proceeds, the physical properties are prevented from being degraded. Specific examples thereof include sulfur, m-phenylenebismaleimide, 1,2-vinylpolybutadiene, and triallyl cyanurate. Elate, diallyl phthalate, ethylene diacrylate, etc. are mentioned, One or two or more of these are used.

When the content of the chain cutting inhibitor is less than 0.1% by weight, the characteristics of the chain cutting inhibitor may not be exhibited, and when the content is more than 10% by weight, the physical properties of the block may be reduced.

(d) vermiculite

Vermiculite contained in the base layer has good water absorption, water permeability, drainage, water retention, etc., resulting in increased water retention, water permeability, and moisture retention of the pattern block. In addition, vermiculite has a temperature-saving effect can prevent a sudden temperature rise of the pavement surface in the summer. The content of such vermiculite is 1 to 5 parts by weight based on 100 parts by weight of the non-plastic inorganic binder. When the content of vermiculite is less than 1 part by weight based on 100 parts by weight of the non-plastic inorganic binder, it may not have excellent water retention, water permeability, and moisture retention, and when it is more than 5 parts by weight, strength such as bending strength may be lowered.

(e) sand, (f) pigments, (g) ocher and (h) Petrofoam  extract

The (e) sand, (f) pigments, (g) ocher and (h) petroform extracts are included in the surface layer, 30 to 60 parts by weight, 1 to 20 parts by weight based on 100 parts by weight of the non-plastic inorganic binder , 10 to 30 parts by weight, 1 to 5 parts by weight.

(e) The sand increases the specific gravity and strength when combined with loess, and reduces the absorption rate of loess, thereby minimizing the length change rate.

(f) Pigment is used for coloring the white non-plastic inorganic binder, it can be used for two or more kinds to produce a pattern block having a variety of colors. However, in the case of forming the surface layer divided into five or more sections using five or more pigments, the surface layer may easily fall off. Thus, it is preferable to prepare the surface layer divided into two to four sections using two to four pigments. Do.

(g) Ocher is a major constituent of soil, and is used to produce a pattern close to the soil so that the pattern block can be blended with the surrounding landscape as much as possible.

(h) Petroform extract is composed of naphthalene-extracted sulfuric acid as the main component and contains organic carbon, Fe, Ca, P, Na and K components, associate surfactant, silicide resin, triphosphate resin and some inorganic salts. It is used to improve the solidification power of the surface layer. In addition, the non-plastic inorganic binder is high in strength and easy to color, and serves to increase binding force between ocher particles when cured after hydration, and is sometimes used to color ocher.

The mixture for the surface layer of the present invention can be prepared by using (e) sand, (g) ocher and (h) petroform extracts to maximize the watertightness and prevent freezing, and unlike the conventional ocher block, it can be prepared with high rigidity. Can be.

Additional composition

The base layer and the surface layer of the patterned block according to the present invention include all of the blast furnace slag cement, blast furnace slag, calcined ocher and ganban stone having a particle size of 100-325 mesh, slaked lime, kaolin, metakaolin and waste glass regeneration powder. A binder having a unit weight of 450-490 kg / m ³ mixed with one or more selected from the group consisting of; 1 to 1.5 parts by weight of a water reducing agent (SP) based on 100 parts by weight of the binder; And 25 to 30 parts by weight of water based on 100 parts by weight of the binder; and 5 to 7 parts by weight based on 100 parts by weight of the non-plastic inorganic binder.

Such incorporation can be used to modify the texture of the present invention as needed.

The present invention also provides a method of manufacturing a patterned block.

The method of manufacturing a patterned block of the present invention comprises the steps of: (A) injecting a mixture for the base layer comprising a non-plastic inorganic binder, aggregate, strength enhancer and vermiculite into a compression molding machine; (B) primary compression molding the mixture for the base layer injected into the compression molding machine; (C) mixing a mixture for the surface layer comprising non-plastic inorganic binder, aggregate, strength enhancer, sand, loess and petrofoam extract in two or more mixers; (D) injecting different pigments into each of the two or more mixers of step (C); (E) injecting the mixture for the surface layer of the different colors passed through the step (D) to the divided molding feeder; (F) secondary compression molding by injecting a mixture for each surface layer injected into the divided molding feeder on top of the compression molded base layer mixture present in the compression molding machine; (G) curing the patterned block semifinished product molded in the step (F); And (H) processing the surface of the block surface layer on which the unevenness formed in step (G) is formed with a brush.

First, primary compression molding is performed by injecting a mixture for the base layer including the non-plastic inorganic binder, aggregate, strength enhancer, and vermiculite into a compression molding machine and then pressing.

Next, a mixture for the surface layer comprising the non-plastic inorganic binder, aggregate, strength enhancer, sand, ocher and petroform extracts is respectively mixed in two or more mixers, preferably in two to five mixers, and then added to the respective mixers. Add pigments of different colors.

Next, the mixture for the surface layer having different colors is injected into a molding feeder divided into two or more, preferably 2 to 5 sections, and then the mixture for the surface layer is injected on top of the mixture for the compression-molded base layer present in the compression molding machine. By pressing (secondary compression molding) the molded block semi-finished product. Thus, by using a mixture for the surface layer of different colors, it is possible to form a surface layer having a beautiful appearance (Fig. 1).

Next, the patterned block semi-finished product is cured in a curing room at 45 to 50 ℃ for 24 hours to complete the patterned block.

Curing and drying in the present invention can be applied to both steam curing or dry curing, dry curing method using a hot air fan, hot panel, etc. is preferable because the color of the front part may be discolored in the case of steam curing. Thus, the cured patterned surface layer is formed with irregularities having a very high surface roughness by the aggregate, ore.

Next, the surface of the patterned block surface layer on which the irregularities are formed is processed with a brush to form a high surface roughness (8.5-9.0 μm) to prevent slipping by slightly grinding the irregularities, and the sharpness of the pattern formed on the surface layer is increased. It can be further improved (FIG. 2).

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention. Such variations and modifications are intended to be within the scope of the appended claims.

Manufacturing example  One. Non-plastic  Preparation of Inorganic Binder

72.5% by weight of blast furnace slag, 7% by weight of red mud, 3% by weight of quartz, 12% by weight of anhydrous gypsum, 1.5% by weight of aluminum sulfate, 1% by weight of quicklime, 2% by weight of limestone, 1% by weight of crude oil (dissolved in water) Were mixed and ground to a powder size of 5,000 cm ² / g to prepare a non-plastic inorganic binder powder.

Manufacturing example  2. Non-plastic  Preparation of Inorganic Binder

Prepared in the same manner as in Preparation Example 1, but prepared with a non-plastic inorganic binder powder using cinidine instead of the quartz.

Manufacturing example  3. Non-plastic  Preparation of Inorganic Binder

Prepared in the same manner as in Preparation Example 1, using an albite instead of quartz to prepare a non-plastic inorganic binder powder.

Manufacturing example  4. Non-plastic  Preparation of Inorganic Binder

The non-fired inorganic binder powder was prepared in the same manner as in Preparation Example 1, but without using the red mud.

Manufacturing example  5. Non-plastic  Preparation of Inorganic Binder

Prepared in the same manner as in Preparation Example 1, to prepare a non-plastic inorganic binder powder without using the quartz.

Manufacturing example  6. Non-plastic  Preparation of Inorganic Binder

Prepared in the same manner as in Preparation Example 1, to prepare a non-plastic inorganic binder powder without using the red mud and quartz.

Manufacturing example  7. Preparation of Strength Enhancers

45% by weight of polyethylene resin, 20% by weight of ethylene vinyl acetate resin, 30% by weight of rosin resin and 5% by weight of fumaric acid were mixed and stirred at 170 ° C. for 50 minutes to prepare a strength enhancer.

Example  One.

Primary compression was performed after injecting a mixture for the base layer consisting of 40 parts by weight of aggregate, 8 parts by weight of strength enhancer and 4 parts by weight of vermiculite, based on 100 parts by weight of the non-plastic inorganic binder prepared in Preparation Example 1. Molded. At this time, the aggregate used was a mixture of crushed stone aggregate and waste concrete having an average particle diameter of 25 to 50 mm in a weight ratio of 7: 3.

On the other hand, with respect to 100 parts by weight of the non-plastic inorganic binder prepared in Preparation Example 1, 50 parts by weight of aggregate, 7 parts by weight of strength enhancer prepared in Preparation Example 7, 30 parts by weight of sand, 15 parts by weight of ocher and 3 parts by weight of petrofoam extract. After mixing the resulting mixture for the surface layer in three mixers, 5 parts by weight of light blue pigment, 5 parts by weight of yellow pigment, and 5 parts by weight of purple pigment were added to each mixer. The mixture for the surface layer mixed in each mixer is injected into the molding feeder divided into three sections, and then the mixture for the surface layer is injected into the upper part of the mixture for the compression-molded base layer existing in the compression molding machine. A block semifinished product was obtained.

The molded patterned block semi-finished product was cured for 24 hours in a curing room at 47 ° C. equipped with a hot panel, and then the surface of the surface layer was polished with a brush to prepare a patterned block.

Example  2.

The pattern block was prepared in the same manner as in Example 1, but using the non-plastic inorganic binder prepared in Preparation Example 2 instead of the non-plastic inorganic binder prepared in Preparation Example 1.

Example  3.

The pattern block was prepared in the same manner as in Example 1, but using the non-plastic inorganic binder prepared in Preparation Example 3 instead of the non-plastic inorganic binder prepared in Preparation Example 1.

Comparative example  One.

The pattern block was prepared in the same manner as in Example 1, but using the non-plastic inorganic binder prepared in Preparation Example 4 instead of the non-plastic inorganic binder prepared in Preparation Example 1.

Comparative example  2.

In the same manner as in Example 1, but instead of the non-plastic inorganic binder prepared in Preparation Example 1, a patterned block was prepared using the non-plastic inorganic binder prepared in Preparation Example 5.

Comparative example  3.

In the same manner as in Example 1, a patterned block was prepared using the non-plastic inorganic binder prepared in Preparation Example 6 instead of the non-plastic inorganic binder prepared in Preparation Example 1.

Comparative example  4.

In the same manner as in Example 1, but instead of the brush polishing process was processed by shot peening to prepare a patterned block using a non-plastic inorganic binder.

Comparative example  5.

In the same manner as in Example 1, but instead of brush polishing to prepare a patterned block using a surface polishing method using water.

Test Example .

Physical properties of the patterned blocks prepared in Examples and Comparative Examples were measured (average of the base layer and the surface layer), which are shown in Table 1 below.

1. Porosity: Measure the porosity by the volume method of 'Porosity Test Method of Porous Concrete'.

-Porosity (%) = [1- (W2-W1) / V1] X 100

(V1: volume of specimen, W1: underwater weight of specimen, W2: weight after standing in air for 24 hours)

2. Bending strength: Measure by KS F 2408 (Testing method of bending strength of concrete).

3. Tensile strength: Measure by KS F 2423 (Test method of tensile strength of concrete).

4. Compressive strength: Measured by KS L 5201: 2006 (Test method for the setting time of cement).

5. Thermal strength: Measured according to KS L 5201: 2006 (Test method for the setting time of cement).

6. Fatigue Life: Fatigue life is measured with a fatigue torsion tester (ElectroPuls E10000). The stress with constant amplitude is applied to the material to determine the number of repetitions until the material reaches fracture.

7. Surface roughness: Measure the surface roughness by using roughness measuring instruments (SP-DC9000, TQC).

8. Hexavalent Chromium Dissolution Test: Conducted by the Waste Process Test Method of the Ministry of Environment. 100 g of block (28 days, 20 ℃, air curing) was added to a 2000 ml Erlenmeyer flask containing 1000 ml of distilled water (0.1N HCl solution added to adjust pH to 5.8-6.3), followed by 200 shaking times at room temperature and atmospheric pressure. Shake 6 consecutive hours at / min (4-5 cm amplitude). Then, distilled water shaken by filtration using 1.0 μm glass fiber filter paper was extracted and subjected to hexavalent chrome dissolution test.

9. Whitening: Mark 1 to 5 according to the degree of whitening.

One … Not whitening at all. 2 … Is displayed. 3…. Partly whitened. 4 … Whitened. 5…. Whitening over the entire surface.

division Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Major Porosity (%) 27.6 25.3 25.5 24.7 20.4 20.3 26.5 26.9 Bending strength (kgf / ㎠) 143 140 137 105 115 105 120 114 Tensile strength (kgf / cm2) 61 59 56 46 46 43 45 41 Compressive strength (N / ㎡) 3 days 37.2 34.9 35.1 26.2 26.1 25.9 30.4 29.1 7 days a year 51.1 46.8 47.3 38.7 33.4 31.5 49.6 47.0 28 days old 79.9 76.8 77.9 59.3 53.3 51.6 75.5 70.9 Thermal strength (%) 2.88 2.61 2.64 1.97 1.84 1.65 1.95 1.76 Fatigue Life (NF) 4100 4000 4050 2700 2500 2100 2300 2000 Surface roughness (탆) 8.7 8.5 8.6 8.5 7.2 7.0 3.7 5.9 Hexavalent chromium radish radish radish radish radish radish radish radish Whitening One One One One 4 One 2 5

As shown in Table 1, the patterned blocks prepared according to Examples 1 to 3 of the present invention was confirmed that the quality is superior to Comparative Examples 1 to 5, in particular, excellent strength, fatigue life, high surface roughness It was confirmed to be visible.

Claims (14)

(A) injecting a mixture for the base layer comprising a non-plastic inorganic binder, aggregate, strength enhancer and vermiculite into a compression molding machine;
(B) primary compression molding the mixture for the base layer injected into the compression molding machine;
(C) mixing a mixture for the surface layer comprising non-plastic inorganic binder, aggregate, strength enhancer, sand, loess and petrofoam extract in two or more mixers;
(D) injecting different pigments into each of the two or more mixers of step (C);
(E) injecting the mixture for the surface layer of the different colors passed through the step (D) to the divided molding feeder;
(F) secondary compression molding by injecting a mixture for each surface layer injected into the divided molding feeder on top of the compression molded base layer mixture present in the compression molding machine; And
(G) a method of manufacturing a patterned block comprising the step of curing the patterned block semi-finished product molded in the step (F),
The non-plastic inorganic binder is 70 to 80% by weight of blast furnace slag, 5 to 10% by weight of red mud, 1 to 5% by weight ore selected from the group consisting of quartz, senidine, feldspar and albite, 10 to 20% by weight of gypsum %, 0.5 to 2% by weight aluminum sulfate, 0.5 to 1% by weight quicklime or hydrated lime, 0.5 to 3% by weight limestone and 0.5 to 2% by weight crude prepared by using a non-plastic inorganic binder Way. The method of claim 1, further comprising the step of processing the surface of the block formed with irregularities prepared in step (G) with a brush. The method of claim 1, wherein the strength enhancer comprises all of the following components (a) to (d) and comprises 0.5 to 10 parts by weight based on 100 parts by weight of the non-plastic inorganic binder. Manufacturing method of pattern block:
(a) 20 to 50% by weight of polyethylene resin,
(b) 5 to 30% by weight of ethylene vinyl acetate resin or elastomer resin
(c) 15 to 30% by weight of petroleum resin
(d) 1 to 20% by weight of organic acid. The method according to claim 3, wherein the strength enhancer further comprises 0.1 to 10% by weight of a chain cutting inhibitor. According to claim 1, wherein the aggregate has a mean particle diameter of 25 to 50 mm, 20 to 25 mm, 15 to 20 mm, 8 to 13 mm or 1 to 3 mm selected from the size of the crushed aggregate and recycled aggregate Method of producing a patterned block using a non-plastic inorganic binder, characterized in that the unit weight of 1350 to 1450 kg / m ³ mixed in a weight ratio of any one of 5: 5, 7: 3 or 3: 7. The method of claim 5, wherein the recycled aggregate is at least one selected from the group consisting of waste concrete, waste ceramics, waste tiles, waste boards, and waste panels. The elastomeric resin of claim 3, wherein the elastomer resin of the strength enhancer is at least one resin selected from the group consisting of butadiene rubber, chloroprene rubber, styrene butadiene rubber, ethylene propylene diene rubber, ethylene propylene rubber, and isoprene rubber. Method of producing a patterned block using a non-plastic inorganic binder, characterized in that. The method of claim 3, wherein the petroleum resin of the strength enhancer is a rosin-based resin or terephen resin. The method of claim 3, wherein the organic acid of the strength enhancer is at least one selected from the group consisting of adipic acid, fumaric acid, oxalic acid, stearic acid, oleic acid, filmic acid, lauryl acid, (male) anhydride and (ter) phthalic anhydride. Method of manufacturing a patterned block using a non-plastic inorganic binder. According to claim 1, wherein each of the mixture for the surface layer and the mixture for the base layer further comprises an additional composition containing all of the following components (i) to (iii) to 5 to 7 parts by weight based on 100 parts by weight of the non-plastic inorganic binder Method for producing a patterned block using a non-plastic inorganic binder, characterized in that:
(i) blast furnace slag Cement, blast furnace slag, calcined ocher and unit weight containing 100-325 mesh particle size, mixed with at least one selected from the group consisting of slaked lime, kaolin, metakaolin and waste glass regenerated powder Binders of 450-490 kg / m ³ ;
(Ii) 1 to 1.5 parts by weight of a water reducing agent (SP) based on 100 parts by weight of the binder; And
(Iii) 25 to 30 parts by weight of water based on 100 parts by weight of the binder. The binder according to claim 10, wherein the binder is 20 to 60 parts by weight of blast furnace slag, 20 to 70 parts by weight of calcined ocher, 5 to 50 parts by weight of ganthanite and slaked lime, kaolin, metakaolin and waste glass with respect to 100 parts by weight of blast furnace slag cement. Method for producing a patterned block using a non-plastic inorganic binder, characterized in that 20 to 80 parts by weight of at least one selected from the group consisting of powder. A base layer comprising non-plastic inorganic binder, aggregate, strength enhancer, and vermiculite; And
A surface layer including a non-plastic inorganic binder, aggregate, strength enhancer, sand, two or more pigments, ocher and petrofoam extracts, formed on top of the base layer, formed with divided patterns of different colors, and processed into a brush; As consisting of,
The non-plastic inorganic binder is 70 to 80% by weight of blast furnace slag, 5 to 10% by weight of red mud, 1 to 5% by weight ore selected from the group consisting of quartz, senidine, feldspar and albite, 10 to 20% by weight of gypsum %, 0.5 to 2% by weight aluminum sulfate, 0.5 to 1% by weight quicklime or hydrated lime, 0.5 to 3% by weight limestone and 0.5 to 2% by weight crude patterned block using the non-plastic inorganic binder. 13. The method of claim 12, wherein the strength enhancer comprises all of the following components (a) to (d) and comprises 0.5 to 10 parts by weight with respect to 100 parts by weight of the non-plastic inorganic binder. Pattern Block:
(a) 20 to 50% by weight of polyethylene resin,
(b) 5 to 30% by weight of ethylene vinyl acetate resin or elastomer resin
(c) 15 to 30% by weight of petroleum resin
(d) 1 to 20% by weight of organic acid. The method of claim 12, wherein the aggregate has a mean particle diameter of 25 to 50 mm, 20 to 25 mm, 15 to 20 mm, 8 to 13 mm or 1 to 3 mm selected from the size of the crushed aggregate and recycled aggregate 5: 5, 7: 3 or 3: 7 using a non-plastic inorganic binder, characterized in that the unit weight of 1350 to 1450 kg / m ³ mixed in the weight ratio of any one.

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