KR101205497B1 - Plantable block using unsintered cement and method for manufacturing thereof - Google Patents

Abstract

PURPOSE: A vegetation block using non-sintered cement, and a producing method thereof are provided to offer a heat island phenomenon control effect by having high porosity and water-permeability. CONSTITUTION: A vegetation block(100) using non-sintered cement includes a lower layer(110) and an upper layer(120). The lower layer includes more than one through-hole(130), the non-sintered cement, aggregate, a strength improving agent, and vermiculite. The upper layer is molded into the same shape with the lower layer, and contains the non-sintered cement, the strength improving agent, sand, a pigment, yellow soil, and a PET furnace foam extract. 0.5-10 parts of strength improving agent by weight is mixed with 100 parts of non-sintered cement by weight.

Description

Plant block using unfired cement and its manufacturing method

The present invention relates to a vegetation block using a non-plastic cement which has excellent water permeability, strength and durability, and which can grow well by moisturizing effect, and a method of manufacturing the same.

In general, retaining walls are provided on various slopes or slopes of incisions formed by civil works such as slopes, embankments, lakes, and landscaping walls on roadsides.

These retaining walls form formwork with reinforcing bars and panels to cut soils in construction areas, or fill valleys and lower areas in mountainous areas, cast concrete into the formwork, and then build soils and crushed stones on the back. Is common.

However, the retaining wall that is constructed by placing concrete takes a lot of cost and construction period due to the molding and curing, and the retaining wall block that is constructed by using the block due to the damage to the surrounding aesthetics due to the uniform shape is being constructed.

The retaining wall block is constructed of blocks made of concrete, stone, brick, or stone, and earth and sand filled in the rear side of the block, and appropriate anchoring means, to prevent soil from being pushed forward.

The retaining wall constructed by these retaining wall blocks stacks the blocks several times in the transverse direction and then fills the back with reinforcement soils including earth and crushed stone, and the retaining wall constructed by these blocks only considers the stability of the slope. Recently, the landscaping technology has been proposed to create a natural-friendly atmosphere by recording the vegetation on the retaining wall as well as the improvement of the legal greening technology.

The proposed landscaping technique attempts to green the retaining wall by planting plants on the exposed slope after constructing the retaining wall to expose the part of the slope without omitting the block in several places for building the retaining wall block. . However, the above technology has a planting plant only in the portion where the block is omitted, and there is no substantial greening effect, and there is another problem in that the structure is unstable and the constructed retaining wall collapses.

On the other hand, as a way to solve such a problem, the ecological block formed by the concave-molded ecological block having channel shape on the slope is used as the retaining wall, but this is also more uniform than the eco-friendly block. Its artificial feel makes it difficult to blend with the surrounding aesthetics, and the water is absorbed through the pores during snow or rain, which helps the plant grow, but the water is evaporated too quickly, such as when water is absorbed. There was a problem that the growth rate is slow as the nutrients necessary for the plants to grow are not supplied sufficiently (Korean Registered Application No. 0433161).

Therefore, there is a need for a vegetation block that has a lot of space for vegetation, which is friendly to nature, has excellent permeability, strength and durability, and an excellent moisturizing effect, so as to smoothly control the moisture of plants.

An object of the present invention is to provide a vegetation block using non-plastic cement which is excellent in permeability, strength and durability and plants can grow well by moisturizing effect.

It is another object of the present invention to provide a method for producing the vegetation block.

Vegetation block of the present invention for achieving the above object is provided with at least one through-hole capable of vegetation, the lower layer comprising non-fired cement, aggregate, strength enhancer and vermiculite; And an upper layer formed on the upper portion of the lower layer in the same shape as the lower layer, the upper layer including non-fired cement, strength enhancer, sand, pigment, ocher and petroform extract.

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 non-fired cement:

(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.

At least one pair of depressions and protrusions may be formed on both side surfaces of the lower layer, and a connection ring may be formed on the corner surface.

The non-fired cement is 70 to 80% by weight of blast furnace slag, 10 to 20% by weight of gypsum, 0.5 to 3% by weight of sodium hydroxide, 0.5 to 2% by weight of aluminum sulfate, 0.5 to 1% by weight of quicklime or slaked lime, 0.5 to 3% by weight of limestone % And crude 0.5 to 2% by weight of the crude, it may be prepared by grinding to have a powder degree of 4,000 to 6,000 cm ² / g.

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 may be a unit weight of 1350 to 1450 kg / m ³ mixed in a weight ratio of any one of: 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.

Elastomer resin of the strength enhancer may be a resin containing 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, strength enhancer The petroleum resin may be a rosin-based resin or terepene resin, and the organic acid of the strength enhancer is composed of adipic acid, fumaric acid, oxalic acid, stearic acid, oleic acid, filmic acid, lauryl acid, (male) anhydride, and (anhydrous) terephthalic acid. It may be one or more selected from the group.

The vegetation block may further comprise, in each of the upper layer and the lower layer, an additional composition including all of the following components (i) to (iii) in an amount of 5 to 7 parts by weight based on 100 parts by weight of the non-fired cement:

(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 method for producing a vegetation block of the present invention for achieving the above another object is the step of (A) injecting a mixture for the lower layer containing non-plastic cement, aggregate, strength enhancer and vermiculite into the lower mold formed with one or more protrusions ; (B) laminating a mixture for the upper layer comprising non-fired cement, strength enhancer, sand, pigment, ocher and petrofoam extract on top of the mixture for the lower layer and bonding the upper mold; (C) curing the vegetation block semi-finished product molded in the step (B); And (D) short-processing the upper layer surface of the cured vegetation block;

The strength enhancer may include 20 to 50 wt% polyethylene resin, 5 to 30 wt% ethylene vinyl acetate resin or elastomer resin, 15 to 30 wt% petroleum resin, and 1 to 20 wt% organic acid.

The non-fired cement is 70 to 80% by weight of blast furnace slag, 10 to 20% by weight of gypsum, 0.5 to 3% by weight of sodium hydroxide, 0.5 to 2% by weight of aluminum sulfate, 0.5 to 1% by weight of quicklime or slaked lime, 0.5 to 3% by weight of limestone % And crude 0.5 to 2% by weight of the crude, it may be prepared by grinding to have a powder degree of 4,000 to 6,000 cm ² / g.

The vegetation block of the present invention has excellent strength and durability despite being porous and porous, and is capable of growing a large amount of plants, thereby being naturally friendly.

In addition, since the vegetation block of the present invention is excellent in water permeability, it is possible to prevent the retaining wall formed of the vegetation block due to rain or river water.

In addition, the vegetation block of the present invention is not harmful to the human body because the pH is low and does not dissolve heavy metals, and because the moisturizing property is 3-4 times better than the conventional vegetation block, it helps smoothly control the moisture of the plant by the moisturizing effect in the porous As a result, plants grow well and have heat island control effects.

1 is a photograph of a vegetation block manufactured according to an embodiment of the present invention.
Figure 2 is a cross-sectional view showing a schematic sequence for the process of manufacturing a vegetation block according to an embodiment of the present invention.
Figure 3 is a perspective view showing a state connected to the vegetation block of the present invention.

The present invention relates to a vegetation block using a non-plastic cement which has excellent water permeability, strength and durability, and which can grow well by moisturizing effect, and a method of manufacturing the same.

The vegetation block refers to a block capable of supporting vegetation on a slope or a slope of an incision formed by a civil work such as a slope of a roadside, an embankment, a riverbank, and an apartment complex landscaping wall, and preventing soil collapse.

Hereinafter, the present invention will be described in detail.

1 is a photograph showing a vegetation block manufactured according to an embodiment of the present invention.

As shown in FIG. 1, the vegetation block 100 of the present invention includes a lower layer 110 having one or more through holes for vegetation and an upper layer 120 provided on an upper portion (eg, an upper surface) of the lower layer. Is done. Therefore, the vegetation block 100 may form a through hole 130 penetrating the upper layer 120 and the lower layer 110.

The upper layer 120 has the same shape as the lower layer 110 and may be formed to be a little smaller or the same size as the lower layer 110. When the upper layer 120 is slightly smaller than the lower layer 110, a space is formed between other neighboring blocks so that plants can be planted in this space.

In addition, the vegetation block 100 of the present invention is formed with at least one pair of depressions 140 on one side of the lower layer 110, at least one pair of protrusions (not shown) on the other side parallel to the side Is formed. At this time, the protrusion is preferably formed in a shape and size corresponding to the depression.

In addition, the vegetation block 100 of the present invention forms a connecting ring 150 on two of the four corners of the lower layer 110 in order to connect with other neighboring blocks and the connecting ring on the other two corners A fastening part (not shown) capable of hanging 150 may be formed.

The lower layer of the vegetation block 100 of the present invention is formed of a mixture comprising (a) non-plastic cement, (b) aggregate, (c) strength enhancer and (d) vermiculite, and the upper layer is (a) non-plastic cement, ( c) a strength enhancing agent, (e) sand, (f) pigments, (g) ocher and (h) petroform extracts.

(a) Non-plastic  cement

Non-fired cement is (a-1) blast furnace slag, (a-2) gypsum, (a-3) sodium hydroxide, (a-4) aluminum sulfate, (a-5) quicklime or hydrated lime, (a-6) limestone And (a-7) 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 (a-2) gypsum is natural gypsum or desulfurized gypsum, and can be used in any form such as dihydrate, hemihydrate, type III anhydride or type II anhydride. 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. A large amount of Al ₂ O ₃ ˜3CaSO ₄ ˜32H ₂ O) is formed to form a network matrix by acicular ettringite to express strength.

At this time, when the gypsum is mixed to less than 10% by weight, the strength of the non-fired cement is not sufficiently expressed, which is due to the lack of the amount of gypsum that can completely convert 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 erythrite, resulting in monocellates whose strength expression is much lower than that of erythrite. 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 sodium hydroxide (a-3), as an industrial product, acts as a strong alkali stimulant, similar to the action of quicklime and slaked lime. Moreover, unlike quicklime and slaked lime, sodium hydroxide is well soluble in water, and due to the exothermic generated, sodium hydroxide may promote the reaction of slag to increase the initial strength.

The content of sodium hydroxide is 0.5 to 3% by weight, when the content is more than 3% by weight, the exothermic reaction rapidly decreases the fluidity at first, and the strength greatly decreases with age, and the expansion crack is formed on the surface. And the Na component may cause an alkali aggregate reaction.

The aluminum sulfate (a-4) 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 slag reaction due to slight heat generation in cement, but also alumina component in blast furnace slag reacts with gypsum to produce hydrates based on ethringite to form a dense skeleton structure, thus making the strength of cement Can promote it.

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-5) is produced in large quantities in Korea as a low-cost industrial product, and in the present invention, sufficient strength can be expressed by mixing 0.5 to 1 wt%. 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, gypsum, quicklime or calcareous lime, sodium hydroxide and aluminum sulfate are added to the blast furnace slag in accordance with the above ratio, and 0.5 to 3% by weight of limestone and 0.5 to 2% by weight of crude economy are added thereto as a physical property enhancer. Can promote it.

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 characterized by pulverizing blast furnace slag, gypsum, sodium hydroxide, quicklime or hydrated lime, aluminum sulfate, limestone and crude economy, and then pulverizing the mixed mixture in a ball mill or tube mill to a powder of 4,000 to 6,000 cm 2 / g. To prepare a non-fired cement according to the invention.

According to the present invention, non-fired cement, which is mainly composed of blast furnace slag, can be produced only through mixing and pulverization without firing, and can exhibit excellent strength at early and long-term ages.

(b) aggregate

Aggregates used in the present invention can be used in the lower layers of vegetation blocks to improve water permeability by further forming a plurality of voids.

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 non-fired cement, but when the content of aggregate is less than 40 parts by weight, the drainage area may not be wide, and thus the permeability may be lowered. Mechanical strength may be lowered.

(c) strength enhancers

Strength enhancers used in the present invention are used in both the upper and lower layers of vegetation blocks to increase resistance to permanent deformation at low and high temperatures (such as 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 non-fired cement, when the content is less than 0.5 parts by weight can not exhibit the properties of the strength enhancer, when the content of more than 10 parts by weight of the block physical properties and 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 of the upper layer or the lower layer, and specific examples thereof include adipic acid, fumaric acid, oxalic acid, stearic acid, oleic acid, pilmic acid, and la Uryl acid, (maleic) anhydride, and (anhydrous) terephthalic acid, 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 lower layer has good water absorption, water permeability, drainage, water retention, etc., resulting in an increase in water retention, water permeability, and moisture retention of the vegetation 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 non-fired cement. When the content of vermiculite is less than 1 part by weight based on 100 parts by weight of non-fired cement, 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 extract is included in the upper layer, 30 to 60 parts by weight, 1 to 20 parts by weight, respectively, based on 100 parts by weight of non-fired cement, It is used in 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-fired cement, it is preferable to select a color that can match the surrounding landscape.

(g) Ocher is the main constituent of soil, and is used to produce vegetation blocks in a form close to the soil so that it blends in 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. Including, it is used to improve the high thermal power of the upper block 120. In addition, the non-fired cement is high in strength and easy to color, and serves to increase the cohesion between ocher particles when cured after hydration, and is sometimes used to color the color of ocher.

The mixture for the upper layer of the present invention can be prepared by using (e) sand, (g) ocher and (h) petroform extracts to prevent freezing by maximizing watertightness, and unlike the conventional ocher blocks, Can be.

Additional composition

The lower layer and the upper layer of the vegetation block according to the present invention include all of the blast furnace slag cement, blast furnace slag, calcined ocher and ganbanite having a particle size of 100-325 mesh, and include slaked lime, kaolin, metakaolin and waste glass regeneration powder. A binder having a unit weight of 450-490 kg / m ³ mixed with at least one 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 non-fired cement.

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

In addition, the present invention provides a method for producing a vegetation block, which will be described with reference to FIG. 2.

The method for producing a vegetation block of the present invention comprises the steps of: (A) injecting a mixture for the lower layer comprising non-plastic cement, aggregate, strength enhancer and vermiculite into a lower mold having one or more protrusions; Laminating a mixture for the upper layer comprising a non-plastic cement, strength enhancer, sand, pigment, ocher and petrofoam extract and combining the upper mold, (C) curing curing the vegetation block semi-finished product formed in the step (B) Making; And (D) short-processing the upper layer surface of the cured vegetation block.

As shown in FIG. 2A, first, in step (A), a mixture 111 for lower layers including non-fired cement, aggregate, strength enhancer, and vermiculite is injected into the lower mold 200 in which one or more protrusions 210 are formed. .

Next, as shown in Figures 2b and 2c, in the step (B) the upper layer mixture containing a non-baking cement, strength enhancer, sand, pigment, ocher and petrofoam extract on the lower layer mixture 111 ( After stacking 121 and combining the upper mold 300, the vegetation block semi-finished product 400 is formed by pressing it.

Next, in step (C), the vegetated block semi-finished product is cured in a curing room at 45 to 50 ° C. for 24 hours to complete the vegetation 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 upper layer may be discolored in the case of steam curing.

Next, in step (D), the surface of the upper layer of the cured vegetation block may be shortened to give a feeling of natural stone matching with the surrounding environment.

The vegetation blocks manufactured as described above may be connected to each other so as to be manufactured as shown in FIG. 3.

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  Cement manufacturing

75% by weight of blast furnace slag was mixed with 15% by weight of anhydrous gypsum, 2% by weight of sodium hydroxide, 2.5% by weight of aluminum sulfate, 1.5% by weight of quicklime, 3% by weight of limestone, and 1% by weight of crude oil (dissolved in water). A non-baking cement powder was prepared by grinding to have a powder degree of 5,000 cm ² / g.

Manufacturing example  2. Preparation of Strength Enhancer

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.

Manufacturing example  3. Preparation of Strength Enhancer

50% by weight of polyethylene resin, 25% by weight of elastomer resin, 15% by weight of terephen resin and 10% by weight of stearic acid were mixed and stirred at 170 ° C. for 50 minutes to prepare a strength enhancer.

Manufacturing example  4. Preparation of Strength Enhancers

40% by weight of polyethylene resin, 25% by weight of ethylene vinyl acetate resin, 20% by weight of rosin-based resin, 10% by weight of fumaric acid and 5% by weight of chain cutting inhibitor were mixed and stirred at 170 ° C. for 50 minutes to prepare a strength enhancer.

Manufacturing example  5. Preparation of Strength Enhancers

60% by weight of polyethylene resin, 33% by weight of rosin-based resin, 0.5% by weight of fumaric acid and 6.5% by weight of chain cutting inhibitor were mixed and stirred at 170 ° C. for 50 minutes to prepare a strength enhancer.

Example  One.

A mixture for the lower layer composed of 40 parts by weight of aggregate, 8 parts by weight of strength enhancer prepared in Preparation Example 2 and 4 parts by weight of vermiculite was added to 100 parts by weight of the non-fired cement prepared in Preparation Example 1 in a lower mold having two protrusions. . 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.

7 parts by weight of the strength enhancer prepared in Preparation Example 2, 30 parts by weight of sand, 5 parts by weight of clay, 15 parts by weight of ocher and petrofoam extract based on 100 parts by weight of the non-fired cement prepared in Preparation Example 1 on the mixture for the lower layer. After stacking the mixture for the upper layer consisting of 3 parts by weight of the upper mold and the lower mold was combined to form a semi- vegetation block semi-finished product.

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

Example  2.

In the same manner as in Example 1, a vegetation block was prepared using the strength enhancer prepared in Preparation Example 3 instead of the strength enhancer prepared in Preparation Example 2.

Example  3.

In the same manner as in Example 1, a vegetation block was prepared using the strength enhancer prepared in Preparation Example 4 instead of the strength enhancer prepared in Preparation Example 2.

Comparative example  One.

In the same manner as in Example 1, a vegetation block was prepared without using the strength enhancer prepared in Preparation Example 2.

Comparative example  2.

In the same manner as in Example 1, a vegetation block was prepared using the strength enhancer prepared in Preparation Example 5 instead of the strength enhancer prepared in Preparation Example 2.

Comparative example  3.

In the same manner as in Example 1, a vegetation block was prepared without using vermiculite in the lower layer composition.

Test Example .

The physical properties of the vegetation blocks prepared in Examples and Comparative Examples were measured, 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. Permeability coefficient: Measure by KS F 4419 (Permeability Test Method of Concrete).

3. Moisturizing (%): Measure the surface of the block by measuring the surface of the block with a moisture meter (CAS-Intec, HI-520).

4. Condensation time: Measure by KS L 5201: 2006 (Test method for condensation time of cement).

5. Flexural strength: Measure according to KS F 2408 (Test method of bending strength of concrete).

6. Tensile strength: Measured by KS F 2423 (Test method for tensile strength of concrete).

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

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

9. Powder level: Measured by KS L 5201: 2006 (Test method for the setting time of cement).

10. Density: Measured by KS L 5201: 2006 (Test method for the setting time of cement).

11. Stability: Measured by KS L 5201: 2006 (Test method for the setting time of cement).

division Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Major Porosity (%) 20.7 20.8 20.6 20.3 19.8 20.1 Permeability coefficient (mm / sec) 2.9 2.8 2.7 2.0 1.8 2.0 Moisturizing (%) 9.6 9.8 9.7 9.1 8.5 5.1 Setting time-first minute 231 233 229 184 197 205 Setting time-closing
(Hours: minutes) 5:11 5: 7 5: 8 9:43 7:37 7:44 Flexural strength (kgf / ㎠) 106 108 117 59 73 94 Tensile strength (kgf / cm2) 43 44 71 8 13 36 Compressive strength (N / ㎡) 3 days 25.5 26.3 21.1 14.6 15.0 20.4 7 days 37.7 37.9 33.1 20.0 22.1 32.4 28 days 59.4 60.8 56.2 22.5 27.4 50.4 Thermal strength (%) 1.55 1.56 1.59 0.97 1.08 1.01 Powder figure
(Brain, ㎠ / g) 3412 3421 3451 2809 2809 2890 Density (g / ㎠) 3.74 3.99 4.02 2.10 2.47 2.02 Stability (%) 0.04 0.03 0.04 0.02 0.02 0.05

As shown in Table 1, the vegetation block prepared according to Examples 1 to 3 of the present invention was confirmed that the quality is superior to Comparative Examples 1 to 3, in particular, the porosity is high not only shows excellent permeability but also strength It was confirmed to be excellent.

On the other hand, Comparative Examples 1 to 3 were found to have high porosity but low strength.

100: vegetation block 110: lower layer
111: composition for lower layer 120: upper layer
121: composition for the upper layer 130: through hole
140: depression 150: hook
200: lower mold 210: protrusion
300: upper mold 400: semi- vegetation block semifinished product

Claims (13)

A lower layer including at least one vegetation through hole and including non-fired cement, aggregate, strength enhancer, and vermiculite; And
The upper layer is formed in the same shape as the lower layer on the upper layer, and comprises an upper layer containing non-plastic cement, strength enhancer, sand, pigment, ocher and petrofoam extract,
The strength enhancer includes all of the following components (a) to (d), and the vegetation block comprises 0.5 to 10 parts by weight based on 100 parts by weight of non-fired cement:
(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 vegetation block according to claim 1, wherein the strength enhancer further comprises 0.1 to 10% by weight of a chain cutting inhibitor. The vegetation block according to claim 1, wherein at least one pair of depressions and protrusions are formed at both side surfaces of the lower layer, and a connection ring is formed at the corner surface. According to claim 1, wherein the non-fired cement is 70 to 80% by weight of blast furnace slag, 10 to 20% by weight gypsum, 0.5 to 3% by weight sodium hydroxide, 0.5 to 2% by weight aluminum sulfate, 0.5 to 1% by weight of quicklime or slaked lime , 0.5 to 3% by weight of limestone and 0.5 to 2% by weight of crude economy, and then vegetation block, characterized in that prepared by grinding to have a powder degree of 4,000 to 6,000 cm ² / g. 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 The vegetation block, 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 vegetation block according to 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 elastomer resin according to claim 1, wherein the elastomer resin of the strength enhancer is 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. Vegetation block characterized in that. The vegetation block according to claim 1, wherein the petroleum resin of the strength enhancer is a rosin resin or terephen resin. The method of claim 1, 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, pilmetic acid, lauryl acid, (male) anhydride and (ter) phthalic anhydride. Vegetation block. The method according to claim 1, wherein the vegetation block further comprises in the upper layer and the lower layer each of 5 to 7 parts by weight of an additional composition containing all of the following components (i) to (iii) with respect to 100 parts by weight of the non-fired cement Vegetation Blocks Featuring:
(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. Vegetation block, characterized in that 20 to 80 parts by weight of at least one selected from the group consisting of powder. (A) injecting a mixture for an underlayer comprising non-fired cement, aggregate, strength enhancer and vermiculite into a lower mold having at least one protrusion;
(B) laminating a mixture for the upper layer comprising non-fired cement, strength enhancer, sand, pigment, ocher and petrofoam extract on top of the mixture for the lower layer and bonding the upper mold;
(C) curing the vegetation block semi-finished product molded in the step (B); And
(D) short-processing the upper layer surface of the cured vegetation block;
The strength enhancer of the vegetation block comprises 20 to 50% by weight of polyethylene resin, 5 to 30% by weight of ethylene vinyl acetate resin or elastomer resin, 15 to 30% by weight of petroleum resin and 1 to 20% by weight of organic acid. Manufacturing method. The method of claim 12, wherein the non-fired cement is blast furnace slag 70 to 80% by weight, gypsum 10 to 20% by weight, sodium hydroxide 0.5 to 3% by weight, aluminum sulfate 0.5 to 2% by weight, quicklime or hydrated lime 0.5 to 1% by weight , 0.5 to 3% by weight of limestone and 0.5 to 2% by weight of crude, and then pulverized to have a powder degree of 4,000 to 6,000 cm ² / g, characterized in that the manufacturing method of the vegetation block.

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