KR101509444B1 - Permeant block using unsintered inorganic binder and method for manufacturing thereof - Google Patents

Abstract

The present invention relates to a gap water permeable block using a non-sintered inorganic binder and a manufacturing method thereof. The cap water permeable block comprises: a base layer having one to four through holes for each side surface among at least two or more side surfaces; and a surface layer installed on the upper surface of the base layer. The base layer includes: a non-sintered inorganic binder; borosilicate frit; enzyme-treated inorganic fiber; celite; amorphous silica; aggregates; wollasonite aggregates; and vermiculite. The surface layer includes: the non-sintered inorganic binder; the borosilicate frit; the enzyme-treated inorganic fiber; celite; amorphous silica; aggregates; wollasonite aggregates; and the vermiculite. Therefore, the gap water permeable block has excellent permeability and prevents standing water such as rainwater due to gap permeable passages, and the water permeable block is capable of storing a substantial amount of water.

Description

TECHNICAL FIELD The present invention relates to a clear water permeable block using a non-fired inorganic binder and a method of manufacturing the same.

The present invention relates to a clear water permeable block using a non-sintered inorganic binder which is excellent in water permeability so that water such as rainwater does not accumulate on the surface layer and the permeable block itself can store a considerable amount of water and a method for manufacturing the same.

Recently, according to urban development, due to increase of packing rate of various structures such as buildings, asphalt, concrete pavement, and parking lot facilities, the tendency of rainwater to flow directly into sewer or river through a pipe line .

If the amount of flow into the sewer or river exceeds the allowable amount due to the precipitation, flooding may occur. On the other hand, if the inflow of the stormwater stream becomes smaller, the underground water amount becomes insufficient. As a result, Causing problems to occur.

In addition, due to the increase of the surface packing rate, which is impossible to penetrate, there is a limit to drainage function in heavy rainfall. In case of sidewalks, Providing the cause of accidents. In addition, since the reflected light from the surface due to rainwater during operation of the vehicle reduces the securing of the driver's view and increases the fatigue of the eyes, the safety of the driver is threatened.

In recent years, a rainwater storage tank capable of storing rainwater and allowing it to flow out into a river when necessary is provided.

Such a storage tank may be constructed by placing concrete on site and a method of assembling the constructed concrete storage blocks on site. However, the method of constructing the concrete by installing the concrete in the field increases the construction time and the construction cost, and increases the probability of occurrence of the safety accident, so that the use of the method of assembling and assembling in the field using the manufactured concrete block is increasing .

Therefore, it is required to provide a permeable block capable of preventing flood and the like as well as being easily assembled by simply assembling.

Korean Patent No. 1052857 Korean Patent No. 1204036 Korean Patent Publication No. 2008-0016980

An object of the present invention is to provide a clear water permeable block using a non-sintered inorganic binder in which water such as rainwater and the like is not accumulated on the surface layer and the permeable block itself can store a considerable amount of water.

Another object of the present invention is to provide a method of manufacturing the above-mentioned clearance block.

According to an aspect of the present invention, there is provided a clearance permeable block using a non-fired inorganic binder, comprising: a base layer having at least two through holes per side on at least two sides; And

And a surface layer provided on an upper surface of the base layer,

Wherein the base layer comprises a non-sintered inorganic binder, a borosilicate frit, an inorganic fiber treated with an enzyme, celite, amorphous silica, aggregate, wollastonite aggregate and vermiculite, Inorganic fibers, celite, amorphous silica, aggregates, wollastonite aggregates, sand and petroform extracts.

The through-hole may be formed on the bottom surface of the base layer and exposed to the outside.

And a number of coupling protrusions corresponding to the through holes may be formed on the side surface where the through holes are not formed.

One to three crevice projections may be formed on each side of the permeable block.

Wherein the base layer comprises 1 to 5 parts by weight of borosilicate frit, 10 to 40 parts by weight of inorganic fibrous material treated with enzyme, 1 to 5 parts by weight of celite, 5 to 20 parts by weight of amorphous silica, 30 to 40 parts by weight, 5 to 20 parts by weight of wollastonite aggregate and 1 to 5 parts by weight of vermiculite.

Wherein the surface layer comprises 1 to 5 parts by weight of borosilicate frit, 10 to 40 parts by weight of inorganic fibrous material treated with enzyme, 1 to 5 parts by weight of celite, 5 to 20 parts by weight of amorphous silica, 20 to 40 parts by weight of sand, and 1 to 5 parts by weight of petrofum extract.

The inorganic fibers may be milled to 35-80 mesh and the moisture content may be less than 5%.

The inorganic fiber may be at least one selected from the group consisting of seaweeds such as seaweed, seaweed, and parasites, peanut shells, bamboo, straw, corn and palm fruit.

The enzyme may be at least one selected from the group consisting of papain, bromelain, picin, and trypsin.

According to another aspect of the present invention, there is provided a method of manufacturing a slit permeable block, comprising the steps of: (A) mixing an inorganic filler with an inorganic binder, borosilicate frit, inorganic fiber treated with an enzyme, celite, amorphous silica, Injecting a mixture for a base layer into a lower mold having a convex portion; (B) laminating a mixture for a surface layer comprising a non-sintered inorganic binder, a borosilicate frit, an inorganic fiber treated with an enzyme, celite, amorphous silica, aggregate, wollastonite aggregate, sand and petrofom extract, and bonding an upper mold; (C) curing and drying the semi-finished block of the water permeable block formed in the step (B); And (D) machining the surface of the surface layer of the cured water permeable block.

The clear water permeable block of the present invention is capable of storing water in a space formed by the through holes of the block bottom without water of rainwater or the like being accumulated on the surface layer due to excellent water permeability and crevice permeability. Also, the permeable block itself can store a considerable amount of water such as rainwater.

In addition, the permeable block does not contaminate the ground water and the river because the hexavalent chrome leaching does not occur, and the construction can be carried out only by assembling the permeable blocks, thereby increasing the cost and efficiency.

In addition, the permeable block is superior in temperature reduction effect to general asphalt.

FIG. 1A is a perspective view of a crevice block constructed in accordance with one embodiment of the present invention,
FIG. 1B is a bottom perspective view of a clearance block manufactured according to an embodiment of the present invention, FIG.
2A is a perspective view of a crevice block manufactured according to another embodiment of the present invention,
FIG. 2B is a bottom perspective view of a crevice waterproof block manufactured according to another embodiment of the present invention,
Figure 3a is a perspective view of a crevice block constructed in accordance with another embodiment of the present invention,
3B is a bottom perspective view of a crevice block constructed in accordance with another embodiment of the present invention.

The present invention relates to a clear water permeable block using a non-sintered inorganic binder which is excellent in water permeability so that water such as rainwater does not accumulate on the surface layer and the clear water permeable block itself can store a considerable amount of water and a method for manufacturing the same.

Hereinafter, the present invention will be described in detail.

FIG. 1A is a perspective view of a clearance block manufactured according to an embodiment of the present invention, FIG. 1B is a bottom perspective view of a clearance block manufactured according to an embodiment of the present invention, FIG. FIG. 2B is a bottom perspective view of a clearance block manufactured according to another embodiment of the present invention, and FIG. 3A is a perspective view of a clearance block manufactured according to another embodiment of the present invention. FIG. And FIG. 3B is a bottom perspective view of a crevice pitch block manufactured according to another embodiment of the present invention.

1 to 3, the clearance block 100 of the present invention comprises a base layer 110 and a surface layer 120 provided on an upper surface of the base layer.

The base layer 110 is a quadrangular block body having four sides, and at least two sides of the base layer 110 are formed with one to four through holes 130 per side. Specifically, through-holes (not shown) are formed on adjacent side surfaces (FIG. 1A), or through holes 130 are formed on only two opposite sides of the four side surfaces (FIG. 2A) A through-hole 130 may be formed (FIG. 3A).

The through hole 130 is formed on the bottom surface of the base layer 110 and is exposed to the outside. The through hole of the block of FIG. 1A is formed as shown in FIG. 1B, the through hole of the block of FIG. , The through-hole of the block of Fig. 3A is formed as shown in Fig. 3B.

1 and 2, a number of coupling protrusions 140 corresponding to the through holes 130 are formed on the side where the through holes 130 are not formed. The through holes 130 and the engaging protrusions 140 formed in the respective clearance permeable blocks 100 can be easily inserted into each other when the plurality of the clearance permeable blocks 100 are coupled to each other. Specifically, a plurality of the clearance blocks can be connected by fitting the through-hole of the first clearance block and the engaging protrusion of the second clearance block. These connected blocks can prevent floating, distortion, or movement of the block.

The through-hole 130 can be a moving passage for water such as rainwater, and not only water such as rainwater can be flowed to a sewer, a river or soil, but also a storage function for storing water is also possible.

The surface layer 120 is formed on an upper surface of the base layer 110, for example, a surface other than the side surface on which the through hole 130 is formed.

1 to 3 clearance protrusions 150 are formed on each side of the clearance permeable block 100 so that adjacent permeable blocks are spaced apart from each other, so that the clearance space, for example, a clearance passage is formed. The clearance water can be used as a moving passage for water such as rainwater, and water such as rainwater can be flowed to the sewer, river or soil.

In general, the clearance block is constructed in the order of a bedrock, a cushion sand, and a permeable block. In the present invention, the clearance of the permeable block 100 is 16 cm (surface layer 5 cm) Lt; / RTI >

The present invention provides a method of manufacturing a crevice tool block.

A method for producing a crevice waterproof block of the present invention comprises the steps of (A) preparing a mixture for a base layer containing a non-sintered inorganic binder, borosilicate frit, inorganic fiber treated with an enzyme, celite, amorphous silica, aggregate, wollastonite aggregate and vermiculite Into a lower mold; (B) laminating a mixture for a surface layer comprising a non-sintered inorganic binder, a borosilicate frit, an inorganic fiber treated with an enzyme, celite, amorphous silica, aggregate, wollastonite aggregate, sand and petrofom extract, and bonding an upper mold; (C) curing and drying the intermediate block material block formed in the step (B); And (D) machining the surface of the surface layer of the cured clearance block.

Since the blocks having the through-holes formed at the center of the block are formed by injecting the mixture into the mold having the pillars, there is a problem that the through-holes are formed upward (for example, there was. However, since the crevice waterproof block of the present invention is formed by injecting a mixture into a mold having a convex portion, the surface layer is formed in an upward shape so that molding and surface processing are easy.

The base layer 110 of the clearance permeable block 100 of the present invention may be formed by a combination of (a) a non-sintered inorganic binder, (b) a borosilicate frit, (c) an inorganic fiber treated with an enzyme, (d) Silica, (f) aggregate, (g) wollastonite aggregate and (h) vermicite, and the surface layer 120 is formed of a mixture of (a) a non-sintered inorganic binder, (b) a borosilicate frit, (E) amorphous silica, (f) aggregate, (g) wollastonite aggregate, (i) sand and (j) petrofom extract.

(a) Non-plasticity  weapon Binders

The non-sintered inorganic binder may be selected from the group consisting of (a-1) blast furnace slag, (a-2) red mud, (a-3) ore, (a- Slaked lime, (a-7) limestone and (a-8) quarry.

In the (a-1) blast furnace slag, about 8.5 million tons of blast furnace slag is produced annually in steel mills and the like. Therefore, it is cheaper than ordinary portland cement and is easy to purchase.

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

The (a-2) red mud is a ceramic-rich byproduct alkali-earth metal compound such as alumina (Al ₂ O ₃ ), titanium dioxide (TiO ₂ ) and the like and is used for supplying Na ions necessary for hydration of blast furnace slag. This red mud means the sludge remaining after extracting aluminum hydroxide by the beer method (a method of extracting aluminum hydroxide by adding sodium hydroxide (NaOH) to a raw mineral containing a large amount of alumina) from bauxite raw mineral, It is a fine powder with a size of 20 μm and is calculated as a sludge form (dough shape) with a moisture content of about 30%. However, the above-mentioned bait method, that is, 'Al ₂ O ₃ + 2NaOH → 2NaAlO ₂ + H ₂ O', produces red mud with strong alkalinity of pH 12 or more by using high concentration of sodium hydroxide (NaOH). Therefore, sodium hydroxide (NaOH) remaining in the red mud sludge causes bleaching phenomenon and cracks, which adversely affects the appearance and structural strength of the building.

When red mud having the above-described problems is mixed with at least one ore selected from the group consisting of quartz, senidine, quartz and albite, and aluminum sulfate (preferably aluminum sulfate containing crystal water), a dense skeleton structure is formed The strength of the block is enhanced and whitening and cracks are not generated.

The content of red mud is in the range of 5 to 10% by weight. When the content is less than 5% by weight, it can not have a further improved strength. When the content is more than 10% by weight, whitening and cracking may occur.

The one or more ores selected from the group consisting of (a-3) quartz, senidine, quartz and albite are excellent in air permeability, water retention and strength, so that the strength of the block can be improved. do. In addition, the ore used in the present invention can further improve the strength of the block by mixing with blast furnace slag, red mud, aluminum sulfate and steel fiber as alkaline ore, and prevent whitening and cracking. Since the pore size of the ore is variable depending on the size of the ore, the thickness of the ore is 1 to 2.5 mm considering the permeability.

The content of the ore is 1 to 5% by weight. When the content is less than 1% by weight, the strength, moisturizing property and air permeability are lowered, whitening phenomenon and cracks may occur, and the strength may be greatly decreased If it is more than 5% by weight, the strength may be lowered.

The (a-4) gypsum may be natural gypsum or desulfurized gypsum, and may be used in any form such as irrigation, half-life, anhydrous form III or anhydrous form II. Furthermore, in the case of pulpite gypsum currently classified as general waste, about 2 million tons of by-products are emitted annually from domestic fertilizer factories, and about 20 million tons of waste scraps are placed in the stockpile. Therefore, the problem of disposal of such waste rocks is becoming a serious problem, and the present invention can be easily used by simple pretreatment such as neutralization or calcination.

In the present invention, the gypsum is mixed with 10 to 20 wt% to break the acidic coating of the slag to elute the modified ions. Particularly, it reacts with the alumina component in the slag to form ettringite (Calcium Sulfur Aluminate: 3CaO Al ₂ O ₃ .3CaSO ₄ .32H ₂ O) to form a network matrix formed by needle-shaped etrinite, thereby exhibiting strength.

In this case, when the gypsum is mixed at less than 10 wt%, the strength of the non-fired inorganic binder is not sufficiently developed. This is because the amount of gypsum that can convert the C ₃ A component contained in the blast furnace slag into the total ettringite This is because the excess C ₃ A component reacts with water to produce hydrated calcium aluminate or reacts with the gypsum in the already formed etrinite to produce a monosulfate whose intensity intensity is much smaller than that of etrinite. On the contrary, when the gypsum is overmixed, excess gypsum that does not react with the blast furnace slag is aggregated between the hydration products, and the strength of the gypsum slag is lowered because the strength is lowered.

Aluminum sulfate (a-5) is commercially available as anhydrous aluminum sulfate or aluminum sulfate containing crystal water as an industrial grade (so-called 17% aluminum sulfate-17% Al ₂ O ₃ or about 57% Al (SO ₄ ) ₂ ) And the impurities contained therein have no effect on the present invention. Aluminum sulfate not only accelerates the reaction of the blast furnace slag due to a slight heat generation in the inorganic binder but also reacts with the gypsum contained in the blast furnace slag to form a hydrate mainly composed of etrinite to form a dense skeleton structure, Can be increased.

The content of aluminum sulfate is 0.5 to 2% by weight. When the content is more than 2% by weight, the flowability can be abruptly reduced at the beginning and the strength can be greatly reduced as the aging progresses.

The (a-6) quicklime or slaked lime is a low-priced industrial product produced in large quantities in Korea, and in the present invention, sufficient strength can be expressed by mixing 0.5 to 1% by weight. This is because the solubility of lime is 1.13 g / l at 25 ° C and 1.25 g / l at 20 ° C, so that it can exhibit strong alkalinity even with only a small amount, so that the impermeable film due to chain- 12.5) to rapidly dissolve the SiO ₄ ^{2 -} or Al ₂ O _{3 contained} within. The eluted SiO ₄ ^{2 -} and Al ₂ O ₃ ions react with the gypsum to form hydrates. This reaction progresses actively at an early stage, but proceeds slowly thereafter. If it is added in an amount of more than 1% by weight, the solubility of the lime is low, so that it is rapidly supersaturated and precipitates into crystals. Since the crystals of calcium hydroxide have no strength, the compressive strength becomes smaller as the amount of crystals increases.

As described above, red mud, quartz, gypsum, quick lime or slaked lime and aluminum sulfate are added to the blast furnace slag in the above proportions, and 0.5 to 3 wt% of limestone and 0.5 to 2 wt% And strength.

First, when the limestone fine powder is mixed in an amount of 0.5 to 3% by weight, the strength is increased by 5 to 10%. This not only increases the degree of consolidation by filling voids formed in the hydration reaction of blast furnace slag but also some of them form crystals by replacing sulfate in etrinite and the substituted sulfate accelerates the reaction of blast furnace slag to be. However, even if the limestone is added in an amount exceeding 3% by weight, the effect is hardly promoted.

Further, the initial strength is improved by about 5 to 7% by the addition of the crude oil, because the addition of the crude oil accelerates the hydration reaction of the blast furnace slag. As the soil conditioner, calcium chloride, water glass, sodium carbonate and the like can be used in a powder state or dissolved in water. The addition amount of the crude oil is 0.5 to 2% by weight, and even when the amount is exceeded, the effect is hardly promoted.

As described above, the present invention provides a method of mixing a blended mixture after blending blast furnace slag, red mud, quartz, gypsum, quicklime or slaked lime, aluminum sulfate, limestone, Followed by pulverization to produce a non-fired inorganic binder according to the present invention.

According to the present invention, a non-sintered inorganic binder containing blast furnace slag as a main material can be produced not only during sintering but also during mixing and grinding, and can exhibit excellent strength in early and long-term ages.

(b) Borosilicate Frit

The borosilicate frit used in the present invention not only improves the strength of the block but also improves the bonding force by covering the surface of other materials in the vicinity.

The composition of borosilicate frit used in the present invention, SiO ₂ 60% by weight, Al ₂ O ₃ 10 wt%, B ₂ O ₃ 15 wt%, CaO 5% by weight, MgO 1% by weight, PbO 4 wt%, Na ₂ O 5% by weight.

The content of the borosilicate frit is 1 to 5 parts by weight based on 100 parts by weight of the non-fired inorganic binder. When the content is less than the lower limit, improvement in strength and bonding strength can not be expected. If the content is above the upper limit, permeability constituting the block may be lowered.

(c) Mineral fiber treated with enzymes

The inorganic fibers treated with the enzymes used in the present invention improve permeability and increase resistance to permanent deformation at low and high temperatures (e.g., summer and winter temperatures). In addition, inorganic fibrous materials treated with enzymes are more resistant to block formation, for example, by reducing viscoelastic behavior and thereby reducing subsequent deformation or increasing block stiffness to reduce permanent deformation . Increasing the stiffness means increasing the dynamic stiffness of the block, increasing the load distribution capacity of the material, increasing the structural strength and life span.

In addition, the inorganic fiber treated with the enzyme is rich in fiber, and when it is combined with the blast furnace slag of the kaolin powder and the non-fired inorganic binder, it forms a dense skeleton structure, so that tensile strength, bending strength and impact strength are excellent, Can be a large amount. The inorganic fibers treated with these enzymes are easily processed into powders and have no fear of environmental pollution.

The inorganic fibers are pulverized to 35 to 80 mesh, preferably 50 to 60 mesh. When the size of the inorganic fibrous powder is less than the lower limit, the binding force with the yellow loam and the blast furnace slag may be lowered. If the inorganic fiber powder is above the upper limit, the water permeability may be lowered.

The inorganic fibers are dried to a moisture content of 5% or less by a dryer having a temperature of 100 ° C or higher. The moisture can be adjusted to improve the strength without adding a strength-enhancing agent or the like. If the moisture content of the inorganic fiber exceeds 5%, it is dangerous because it has explosive property. If the rain water penetrates into the block, the block may be rapidly expanded and crack may occur. Blocks using inorganic fibers having a water content of more than 5% may be degraded by the enzyme as time goes by.

The inorganic fiber is at least one selected from the group consisting of seaweeds such as seaweed, seaweed, and parasites, peanut shells, bamboo, straw, corn and palm fruit.

In addition, the inorganic fiber is treated with an enzyme selected from the group consisting of papain, bromelain, picisin, and trypsin for 1 to 3 hours to produce an inorganic fiber treated with an enzyme.

The content of the inorganic fiber treated with the enzyme is 10 to 40 parts by weight with respect to 100 parts by weight of the non-fired inorganic binder. When the content is less than the lower limit, the inorganic fibrous material treated with the enzyme can not exhibit the characteristics. The physical properties and mechanical strength of the block may be deteriorated.

(d) Cell light

The celite used in the present invention binds with mineral fiber treated with an enzyme to increase water retention, permeability and strength of the block.

The content of such celite is 1 to 5 parts by weight based on 100 parts by weight of the non-fired inorganic binder. When the content of celite is less than the above lower limit, excellent water retention, water permeability and strength can not be obtained. If the content is above the upper limit, the strength of the block may be lowered.

(e) amorphous silica

The amorphous silica used in the present invention prevents the block from being swollen when water or the like is absorbed and combines with the inorganic fiber treated with the enzyme to increase the strength of the block.

The content of such amorphous silica is 5 to 20 parts by weight based on 100 parts by weight of the non-fired inorganic binder. When the content of the amorphous silica is less than the lower limit, the block can not be expanded and the strength is not increased. If the amorphous silica content is higher than the upper limit, a crack may be generated in the block.

(f) aggregate

The aggregate used in the present invention can improve the water permeability by further forming a plurality of voids.

The aggregate is mixed with the crushed aggregate having a size of any one of the average particle size of 25 to 50 mm, 20 to 25 mm, 15 to 20 mm, 8 to 13 mm, or 1 to 3 mm and the recycled aggregate at 5: 5, 7 : 3 or 3: 7, and the unit weight thereof is preferably 1350 to 1450 kg / m ³ .

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

When used for the base layer, the aggregate is mixed in an amount of 30 to 40 parts by weight based on 100 parts by weight of the non-sintered inorganic binder. When used for the surface layer, the aggregate is mixed in an amount of 10 to 20 parts by weight based on 100 parts by weight of the non- do. If the content of the aggregate is less than the above lower limit, the drainage area is not wide and the water permeability may be lowered. If the aggregate content exceeds the upper limit value, the mechanical strength may be lowered.

(g) Wollastonite aggregate

The wollastonite aggregate used in the present invention further improves the water permeability by forming a plurality of voids, and the strength of the non-fired inorganic binder and the aggregate can be increased by increasing the binding force.

The wollastonite aggregate has an average particle size of 2 to 8 mm in order to improve water permeability and binding force. The wollastonite rocks are crushed through various steps and dispersed in an air stream, Can be produced by classifying using a difference in speed.

The content of the wollastonite aggregate is 5 to 20 parts by weight based on 100 parts by weight of the non-fired inorganic binder. If the content of the wollastonite aggregate is less than the lower limit value, the permeability and strength of the block may not be improved. If the content of the aggregate exceeds the upper limit, the strength may be lowered and cracks may occur.

(h) vermiculite

The vermiculite contained in the base layer has good water absorption, water permeability, drainage, water retention, and the like, thereby increasing the water retentivity, water permeability and moisturizing property of the block. In addition, since vermiculite has a temperature saving effect, it is possible to prevent a rapid increase in the temperature of the packaging surface during the summer season. The content of vermiculite is 1 to 5 parts by weight based on 100 parts by weight of the non-fired inorganic binder. When the content of vermiculite is less than 1 part by weight with respect to 100 parts by weight of the non-sintered inorganic binder, it can not have excellent water retentivity, water permeability and moisturizing property, and when it is more than 5 parts by weight, strength such as bending strength may be lowered.

(i) sand, (j) Petrofoam  Extract, (k) pigment and (l) loess

(I) sand, (j) petrofoam extract, (k) pigment and (l) loess is contained in the surface layer and is contained in an amount of 20 to 40 parts by weight, 1 to 5 parts by weight , 1 to 20 parts by weight, and 10 to 30 parts by weight.

(i) The sand increases the specific gravity and strength in combination with the loess, and by reducing the absorption rate of the loess, the rate of change of length is minimized.

(j) The petrofum extract contains naphthalene-extracted sulfuric acid as a main component and contains organic carbon, Fe, Ca, P, Na, K components, an escital surfactant, silicate resin, tripotate resin and some inorganic salts And is used to improve the high-strength of the surface layer. In addition, the non-fired inorganic binder is high in strength and easy to color, and serves to increase the binding force between the loess particles when curing after hydration, and is sometimes used to color the loess.

(k) The pigment is used for coloring the white non-fired inorganic binder, and it is preferable to select a color which can be matched to the surrounding landscape.

(l) Loess is a major component of the soil, and is used to produce a soil-like form so that the crevice block is as close as possible to the surrounding landscape.

The mixture for the front part of the present invention can prevent the watertightness from being maximized and frozen by using (i) sand, (j) petrofoam extract and (l) loess, .

Additional composition

The base layer and the surface layer of the block according to the present invention include blast furnace slag cement, blast furnace slag, calcined loam, and elvan stone having a particle diameter of 100-325 mesh, and are used as slag lime, kaolinite, A binder having a unit weight of 450-490 kg / m < ³ > 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 relative to 100 parts by weight of the binder. The composition may further comprise 5 to 7 parts by weight based on 100 parts by weight of the non-fired inorganic binder.

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

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-plasticity  Manufacture of inorganic binders

7 wt% of red mud, 4 wt% of senidine, 12.5 wt% of anhydrous gypsum, 1.5 wt% of aluminum sulfate, 1 wt% of burnt lime, 2 wt% of limestone, 1 wt% of calcium chloride (dissolved in water) And the mixture was pulverized to have a powderity of 5,000 cm ² / g to prepare a non-sintered inorganic binder powder.

Example  One.

3 parts by weight of borosilicate frit, 20 parts by weight of bamboo fiber (60 mesh, moisture content 3%) treated with an enzyme (flesh), 2 parts by weight of celite, 20 parts by weight, a wollastonite aggregate of 8 parts by weight and a vermiculite of 3 parts by weight was charged into a lower mold. At this time, the aggregate was a mixture of crushed stone aggregate having an average particle diameter of 25 to 50 mm and waste concrete in a weight ratio of 7: 3.

1 part by weight of borosilicate frit, 30 parts by weight of straw (60 mesh, moisture content: 4%) treated with an enzyme (pycnospermine) was added to 100 parts by weight of the non-sintered inorganic binder prepared in Preparation Example 1, 3 parts by weight of the aggregate, 10 parts by weight of the aggregate, 5 parts by weight of the gypsum aggregate, 20 parts by weight of the sand and 2 parts by weight of the petrofoam extract were laminated and then the upper mold and the lower mold were combined to mold the intermediate block .

The formed clearance permeable block semi-finished product was cured and dried in a curing room at 47 ° C equipped with a thermal panel for 24 hours, and then the surface of the surface layer was subjected to a short-cut treatment to prepare a clear water permeable block.

Comparative Example  One.

The same procedure as in Example 1 was carried out except that in the base layer and the surface layer, a clear permeable block was prepared without using enzyme-treated bamboo fiber and straw.

Comparative Example  2.

The same procedure as in Example 1 was carried out except that in the base layer and the surface layer, a clear permeable block was prepared using enzyme-treated bamboo fiber and straw instead of enzyme-treated bamboo fiber and straw.

Comparative Example  3.

The same procedure as in Example 1 was carried out except that the water content of the bamboo fiber and the straw was 10% to prepare a clear water blocking block.

Comparative Example  4.

The procedure of Example 1 was repeated except that the borosilicate frit was not used.

Comparative Example  5.

The procedure of Example 1 was repeated except that the cellite was not used to prepare a clear water permeable block.

Comparative Example  6.

The procedure of Example 1 was repeated except that amorphous silica was not used.

Comparative Example  7.

The same procedure as in Example 1 was carried out except that the clear water permeable block was prepared without using the wollastonite aggregate.

Test Example .

The physical properties of the crevice block (250 * 250 * 60 mm) prepared in Examples and Comparative Examples were measured and are shown in Table 1 below.

1. Total Porosity: Measure the porosity of porous concrete by the method of porosity test (draft).

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

(V1: the volume of the specimen, W1: the weight of the specimen in water, and W2: the weight of the weight of the specimen after standing for 24 hours)

2. Permeability coefficient: Measure by KS F 4419 (Test method of permeability coefficient of concrete).

3. Moisture resistance (%): The surface of the block is measured by a moisture meter (Kintintec, HI-520) to measure the moisture retention.

4. Spill factor: Spray 2000 liters of water for 5 minutes and measure the runoff of the permeable block.

- Runoff coefficient = maximum precipitation runoff / (rainfall intensity X drainage area)

5. Bending strength: Measure by KS F 2408 (Bending strength test method of concrete).

6. Tensile strength: Measure by KS F 2423 (tensile strength test method of concrete).

7. Compressive Strength: Measure by KS L 5201: 2006 (Cementation Time Test Method).

8. Dissolution test of hexavalent chrome: It shall be carried out according to the waste process test method of the Ministry of Environment. 100 g of block (28 days, 20 ° C, air-curing) was placed in a 2000 ml Erlenmeyer flask containing 1000 ml of distilled water (adjusted to pH 5.8-6.3 with 0.1 N HCl solution) / min (amplitude 4-5 cm) for 6 hours continuously. Thereafter, the shaken distilled water is filtered and extracted with a 1.0 μm glass fiber filter paper, and a hexavalent chromium dissolution test is carried out.

division Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Comparative Example 7 Plain asphalt Total porosity (%) 28.9 20.4 20.0 18.1 24.2 20.8 22.4 18.5 10.4 Permeability coefficient
(mm / sec) 4.2 3.2 3.0 2.8 3.7 3.1 3.3 2.1 0.9 Moisture resistance (%) 14.1 11.2 10.9 8.4 12.9 13.1 12.1 11.6 - Effluent coefficient 0.31 0.59 0.66 0.75 0.78 0.46 0.77 0.54 0.95 Flexural strength
(kgf /) 152 117 139 132 129 130 123 134 112 The tensile strength
(kgf /) 65 47 53 49 48 51 52 58 45 Compressive strength
(N /) 3 days 37.2 27.1 33.8 29.9 34.0 34.1 34.0 34.8 26.9 7 days a year 50.4 34.3 45.2 38.7 46.8 45.7 46.9 47.0 33.9 28 days old 78.9 60.5 68.1 52.4 69.9 70.3 71.4 71.4 59.8 Hexavalent chromium radish radish radish radish radish radish radish radish radish

As shown in Table 1 above, it was confirmed that the crevice blocks manufactured according to Example 1 of the present invention had higher quality than Comparative Examples 1 to 7 and general asphalt. In particular, it was confirmed that the water permeability, moisturizing property and strength were significantly superior to those of general asphalt. Also, it was confirmed that the clearance block is able to store a large amount of water because the drainage coefficient is small.

Also, when the crevice block prepared in Examples and Comparative Examples was installed on the top surface of the bedrock of 10 cm and the cushion sand of 3 cm in thickness, the temporary storage amounts in the permeable block were 14.3 L (Example 1), 7.2 L (Comparative Example 1), 9.5L (Comparative Example 2), 3.6L (Comparative Example 3), 11.6L (Comparative Example 4), 10.9L (Comparative Example 5), 12.4L (Comparative Example 6) Example 7) and 1.7 (general asphalt).

100: crevice pitcher block 110: base layer
120: surface layer 130:
140: engaging projection 150: crevice projection

Claims (10)

A base layer formed on one of two sides of the four sides with one to four through holes per side and formed with two or more coupling protrusions corresponding to the through holes on the two side surfaces on which the through holes are not formed; And
And a surface layer provided on the upper surface of the base layer, wherein the temporary storage amount per 1 m 2 of the clearance permeable block is 10 to 15 L based on 16 cm of the clearance permeable block,
Wherein the base layer comprises 1 to 5 parts by weight of borosilicate frit, 10 to 40 parts by weight of inorganic fibrous material treated with enzyme, 1 to 5 parts by weight of celite, 5 to 20 parts by weight of amorphous silica, 30 to 40 parts by weight, 5 to 20 parts by weight of wollastonite aggregate and 1 to 5 parts by weight of vermiculite,
Wherein the surface layer comprises 1 to 5 parts by weight of borosilicate frit, 10 to 40 parts by weight of inorganic fibrous material treated with enzyme, 1 to 5 parts by weight of celite, 5 to 20 parts by weight of amorphous silica, To 20 parts by weight, a wollastonite aggregate 5 to 20 parts by weight, 20 to 40 parts by weight of sand, 1 to 5 parts by weight of petroform extract and 10 to 30 parts by weight of loess,
Wherein the inorganic fiber is pulverized into 35-80 mesh and comprises at least one seaweed selected from the group consisting of seaweed, sea bream and blue seaweed having a moisture content of less than 5%; Peanut shell; bamboo; Straw, and corn, and more preferably at least one selected from the group consisting of rice,
Wherein the enzyme is at least one selected from the group consisting of papain, bromelain, polycin, and trypsin. The clearance pitcher block according to claim 1, wherein the through-hole is formed on a bottom surface of the base layer and is exposed to the outside. delete The clearance permeable block using the non-calcining inorganic binder according to claim 1, wherein one to three crevice projections are formed on each side of the permeable block. delete delete delete delete delete (A) injecting a mixture for a base layer comprising a non-sintered inorganic binder, a borosilicate frit, an inorganic fiber treated with an enzyme, celite, amorphous silica, aggregate, wollastonite and vermiculite into a lower mold having a convex portion;
(B) a method of laminating a mixture for a surface layer comprising an inorganic binder, a borosilicate frit, an inorganic fiber treated with an enzyme, celite, amorphous silica, aggregate, wollastonite aggregate, sand, petrofum extract and loess, step;
(C) curing and drying the semi-finished block of the water permeable block formed in the step (B); And
(D) machining the surface of the surface layer of the cured water permeable block,
Wherein the base layer mixture comprises 1 to 5 parts by weight of borosilicate frit, 10 to 40 parts by weight of inorganic fibrous material treated with enzyme, 1 to 5 parts by weight of celite, 5 to 20 parts by weight of amorphous silica, 30 to 40 parts by weight of aggregate, 5 to 20 parts by weight of wollastonite aggregate and 1 to 5 parts by weight of vermiculite,
Wherein the mixture for the surface layer comprises 1 to 5 parts by weight of borosilicate frit, 10 to 40 parts by weight of inorganic fibrous material treated with an enzyme, 1 to 5 parts by weight of celite, 5 to 20 parts by weight of amorphous silica, 10 to 20 parts by weight of aggregate, 5 to 20 parts by weight of wollastonite aggregate, 20 to 40 parts by weight of sand, 1 to 5 parts by weight of petroform extract and 10 to 30 parts by weight of loess,
Wherein the inorganic fiber is pulverized into 35-80 mesh and comprises at least one seaweed selected from the group consisting of seaweed, sea bream and blue seaweed having a moisture content of less than 5%; Peanut shell; bamboo; Straw, and corn, and more preferably at least one selected from the group consisting of rice,
The enzyme is at least one selected from the group consisting of papain, bromelain, polysaccharide and trypsin, and the preparation of a clear water permeable block having a temporary storage amount of 10 to 15 L per 1 m 2 of the clearance permeable block on the basis of 16 cm of the clear water permeable block Way.

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