KR101313540B1

KR101313540B1 - Tree protection block using unsintered inorganic binder and method for manufacturing thereof

Info

Publication number: KR101313540B1
Application number: KR20130017719A
Authority: KR
Inventors: 은재기; 권혁우; 김영주
Original assignee: 주식회사 코뉴
Priority date: 2013-02-19
Filing date: 2013-02-19
Publication date: 2013-10-01

Abstract

PURPOSE: A production method of a roadside tree protection block is provided to prevent the leakage of heavy metals, and to offer improved durability and strength. CONSTITUTION: A roadside tree protection block (100) is formed of plural supporters (140,250), a main frame, a secondary frame, an upper layer, and a lower layer. The lower layer contains a non-sintered inorganic binder, aggregate, a strength increasing agent, and vermiculite. The upper layer contains the non-sintered inorganic binder, the strength increasing agent, sand, a pigment, yellow soil, and a petro foam extract. The non-sintered inorganic binder is obtained by mixing and crushing the following: 70-80 wt% of blast furnace slag; 5-10 wt% of red mud; 1-5 wt% of more than one mineral selected from quartz, orthoclase, and other minerals; 10-20 wt% of gypsum; 0.5-2 wt% of aluminum sulfate; 0.5-1 wt% of quicklime or calcium hydroxide; 0.5-3 wt% of limestone; and 0.5-2 wt% of contract media. The strength increasing agent contains 20-50 wt% of polyethylene resin, 5-30 wt% of ethylene vinyl acetate resin or elastomeric resin, 15-30 wt% of petroleum resin, and 1-20 wt% of organic acid.

Description

Tree protection block using unsintered inorganic binder and method for manufacturing et al.

The present invention relates to a roadside protection block using a non-plastic inorganic binder, and more particularly, is installed on the bottom surface of the roadside drinking water to protect the roadside by preventing landscaping richness and weed generation and soil outflow during rainwater inflow. And it relates to a roadside protection block for maintaining the aesthetics of the road and its manufacturing method.

The roadside trees on the streets provide shade in summer to help maintain the city's atmospheric temperature, function as an air purifier, and provide landscaping and enrichment to people as landscaping trees that enhance the aesthetics of the city.

The roadside protection block installed at the periphery of the roadside tree is installed to help the normal growth and development of the roadside tree and to protect the roadside tree from damage of the surrounding land by pedestrians.

However, due to damage such as weeds around the trees, roots, and runoff during heavy rains or rainy seasons, the protection block is damaged, impairing the aesthetics of the road, preventing the growth of roadside trees, and impeding the passage of pedestrians.

In order to solve this problem, the conventional roadside protection block has been studied for various types of prefabricated castings and concrete plates using various raw materials as portland cement.

However, the conventional roadside protection block is the assembly of the linearly divided surface, when the roots rise due to its morphological characteristics, one part of the assembled block rises upward, and the function of the aesthetic appearance roadside protection falls, and the protection of cement using eco-friendly raw materials such as ocher In the case of blocks, there is a problem of short life due to deterioration of durability and compressive strength.

Accordingly, if the inorganic binder can be manufactured with environmentally friendly materials such as blast furnace slag and red mud, which are industrial by-products without the use of clinker, it solves the environmental pollution problem caused by energy saving and carbon dioxide emission and the strength of the material by mixing the mixture materials. By improving the assembly structure of the roadside protection block by using the morphological characteristics of the block, it can be produced according to the growth of the roadside tree, thereby preventing heavy metal leaching and providing a good growth environment.

Korea Patent Registration No. 10-1205491 Korea Patent Registration No. 10-1205497 Korea Patent Registration No. 10-0870550 Korea Patent Registration No. 10-1205491

Therefore, the first problem to be solved by the present invention is to improve the durability and strength through the combination of environmentally friendly materials, do not occur the evaporation of the metal, it has a non-effective effect of providing a good growth environment due to the improved assembly structure It is to provide a roadside protection block using a plastic inorganic binder.

The second problem to be solved by the present invention is to provide a method for manufacturing the roadside protection block.

In order to achieve the first object of the present invention,

(A) an underlayer comprising non-plastic inorganic binder, aggregate, strength enhancer and vermiculite;

(B) an upper layer positioned on top of the lower layer, the upper layer comprising a non-plastic inorganic binder, a strength enhancer, sand, a pigment, ocher and a petrofoam extract; As it consists of a plurality of supports, the main frame and the auxiliary frame,

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 of aluminum sulfate, 0.5 to 1% by weight of quicklime or hydrated lime, 0.5 to 3% by weight of limestone and 0.5 to 2% by weight of crude oil, after which a powder level of 4,000 to 6,000 cm ² / g is obtained. It may be prepared by grinding to have.

According to one embodiment of the present invention, 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,

In addition, the strength enhancer may further comprise 0.1 to 10% by weight of a chain cutting inhibitor.

According to another embodiment of the present invention, the aggregate has a crushed stone aggregate having an average particle size of any one selected from 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 may be a unit weight of 1350 to 1450 kg / m ³ mixed with a weight ratio of any one of 5: 5, 7: 3 or 3: 7.

According to another embodiment of the present invention, the recycled aggregate may be at least one selected from the group consisting of waste concrete, waste pottery, waste tile, waste boards and waste panel.

According to another embodiment of the present invention, the elastomer resin of the strength enhancer is selected from the group consisting of butadiene rubber, chloroprene rubber, styrene butadiene rubber, ethylene propylene diene rubber, ethylene propylene rubber and isoprene rubber It may be a resin comprising a.

According to another embodiment of the present invention, the petroleum resin of the strength enhancer may be a rosin-based resin or terephen resin.

According to another embodiment of the present invention, the organic acid of the strength enhancer is selected from the group consisting of adipic acid, fumaric acid, fish acid, stearic acid, oleic acid, pilmetic acid, lauryl acid, (male) anhydride and (tele) anhydride (anhydrous) It may be more than one species.

According to another embodiment of the present invention, the plurality of supports, the main frame and the auxiliary frame is an additional composition comprising all of the following components (i) to (iii) in each of the lower layer and the upper layer, the weight of the non-plastic inorganic binder 100 It may further comprise 5 to 7 parts by weight relative to the part;

(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.

According to another embodiment of the present invention, 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 gangue stone and slaked lime, kaolin and metakaolin based on 100 parts by weight of blast furnace slag cement. And 20 to 80 parts by weight of one or more selected from the group consisting of waste glass regeneration powder can be mixed.

According to another embodiment of the present invention, the roadside protection block is formed with an auxiliary frame having a vegetation space inside the main frame, the main frame is formed is divided into eight sections, the auxiliary frame is 4 to 8 sections It may be divided into formed.

According to another embodiment of the present invention, the main frame includes a plurality of first frames and second frames,

The first frame is installed between the right side of the support and the left side of the second frame, the distance between the support and the second frame is wider from the outer side of the first frame toward the inner side, the first frame The width of the narrower becomes narrower from the left side to the right side of the first frame, the second frame is installed between the right side of the first frame and the left side of the support, the right side and the support of the first frame The distance between the left side of the narrower toward the inner side from the outer surface of the second frame, the width of the second frame may be made narrower toward the right side from the left side of the second frame;

The auxiliary frame includes a plurality of third frames, the inner surface of the third frame is located on the inner surface of the first frame, the width of the third frame from the left side of the third frame toward the right side It can be made narrower.

According to another embodiment of the present invention, the main frame includes a plurality of first frames and a second frame, the auxiliary frame includes a plurality of third frames and a fourth frame,

The first frame is installed between the support and the third frame,

The first frame has a structure in which an outer surface of the first frame adjacent to the inner surface of the support part is concave, and an inner surface of the first frame adjacent to the outer surface of the third frame is concave. The other second frame is positioned on each of the right side and the left side of the first frame, and the second frame is installed between the first frame and the other first frame, and the fourth frame is located on the inner side of the second frame. ,

The third frame is positioned between each fourth frame, the inner surface of the third frame is convex toward the first frame, the outer surface is convex toward the inner surface, the fourth frame is It may be located between each third frame.

According to another embodiment of the present invention, the support portion may be removed to form a space for installing the tree support.

The present invention is a method of manufacturing a protective block for achieving the second object of each of the main frame, auxiliary frame and support

(A) injecting a mixture for the lower layer comprising a non-plastic inorganic binder, aggregate, strength enhancer and vermiculite into the lower mold;

(B) laminating a mixture for the upper layer comprising a non-plastic inorganic binder, strength enhancer, sand, pigment, ocher and petrofoam extract on top of the mixture for the lower layer and joining the upper mold with protrusions;

(C) curing the protective block semi-finished product formed in the step (B); And

(D) short-processing the surface of the upper layer of the cured protective block; after manufacturing, including the main frame, the auxiliary frame and the support can be assembled.

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.

According to another embodiment of the present invention, the strength enhancer 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 It may include.

According to the present invention, the roadside protection block is environmentally friendly using industrial by-products such as blast furnace slag and red mug, and may have an effect of reducing heavy metal dissolution and enhancing strength by supplementation through the addition of a composition.

In addition, by improving the assembly structure of the roadside protection block, the risk of damage to the protection block through damage and weed control caused by roadside roots planted on roads and sidewalks can be reduced, and the vegetation environment can be modified according to the size and use of roadside trees. And it is effective to improve the urban landscape.

1 is a perspective view of a roadside protective block manufactured according to an embodiment of the present invention.
2 is a view showing specific names of the support and the first to third frames.
3 is a perspective view of a roadside protective block manufactured according to another embodiment of the present invention.
4 is a view showing specific names of the support and the first to fourth frames.

The present invention relates to a roadside protective block using a non-plastic inorganic binder having excellent durability and compressive strength than conventional technologies through the combination of environmentally friendly materials and a method of manufacturing the same.

Hereinafter, the present invention will be described in detail.

1 is a plan view of a roadside protective block manufactured according to an embodiment of the present invention, Figure 2 is a view showing the concrete name of the support and the first frame to the third frame, Figure 3 is another embodiment of the present invention 4 is a plan view of the roadside protection block manufactured according to the present invention, and FIG. 4 is a view showing specific names of the support and the first to fourth frames.

The roadside protection blocks 100 and 200 according to the present invention are characterized in that the support portion 140, 250 and the main frame and the auxiliary frame.

Vegetation spaces 150 and 260 are located inside the main frame, and the main frame is divided into eight sections, and the auxiliary frame is divided into four to eight sections.

In detail, as shown in FIGS. 1 and 2, the main frame includes a plurality of first frames 110 and second frames 120.

The first frame 110 is installed between the right side surface 143 of the support unit 140 and the left side surface 121 of the second frame 120, and the support unit 140 and the second frame 120. The interval therebetween becomes wider from the outer surface 114 of the first frame 110 to the inner surface 112, and the width of the first frame 110 is the left surface 111 of the first frame 110. The narrower the closer to the right side 113, the second frame 120 is installed between the right side 113 of the first frame 110 and the left side 141 of the support unit 140, The distance between the right side 113 of the first frame 110 and the left side 141 of the support 140 becomes narrower toward the inner side 122 from the outer side 124 of the second frame 120. The width of the second frame 120 may be narrower from the left surface 121 of the second frame 120 toward the right surface 123.

The auxiliary frame includes a plurality of third frames 130, and the inner side surface 134 of the third frame 130 is located on the inner side 112 of the first frame 110 and the third frame. The width of the frame 130 is narrower from the left side 131 of the third frame 130 to the right side 133.

The first frame 110 becomes narrower as the distance between the inner side 112 and the outer side 114 toward the right side 113, and the right side 113 and the left side 111 toward the second frame 120. It has a slanted structure.

The second frame 120 has a narrower interval between the inner surface 122 and the outer surface 124 toward the right side 123, and the inclination of the left side 121 and the right side 123 is the inner side 122. Toward the right side 123 is inclined.

The plurality of first frames 110 and the plurality of second frames 120 constitute the main frame, and the roots of the trees are formed by a structure in which seams of the respective main frames and the support part 150 are inclined and engaged. And weeds are prevented from being pushed outwards.

The third frame 130 is an auxiliary frame forming the planting space 150 of the roadside protection block, and forms the planting space 150 of the roadside tree, and may be removed according to the size or shape of the roadside tree to be planted. .

In detail, as illustrated in FIGS. 3 and 4, the main frame includes a plurality of first frames 210 and a second frame 220, and the auxiliary frame includes a plurality of third frames 230 and a first frame. It is preferred to include four frames 240.

The first frame 210 is installed between the support part 250 and the third frame 230, the shape of the first frame 210 is adjacent to the inner surface 252 of the support part 250. The outer surface 214 of the first frame 210 is formed concave, the inner surface 212 of the first frame 210 adjacent to the outer surface 232 of the third frame 230 is formed concave. The second frame 220 is positioned on each of the right side 213 and the left side 211 of the first frame 210, and the second frame 220 is different from the first frame 210. It is installed between the first frame 210, the fourth frame 240 is located on the inner surface 222 of the second frame 220, the third frame 230 is each fourth frame 240 The inner surface 234 of the third frame 230 is convex toward the first frame 210, and the outer surface 232 is convex toward the inner surface 234. , remind The fourth frame 240 may be located between each third frame 230.

The first frame 210 may have a third frame 230 in a concave portion of the inner surface 212, and the support part 250 may be located in the concave outer surface 214.

The second frame 220 and the fourth frame 240 have an outer side 224 and 244, an inner side 222 and 242, a left side 221 and 241, and a right side 223 and 243. It is made of a direct type prefabricated block structure comprising a.

The third frame 230 forms the planting space 260 of the roadside protection block, is located at the corner of the planting space 260, the outer surface 232 is concave, the inner surface 234 is the first frame It is made into a convex shape toward 210.

The support parts 140 and 250 used in the present invention generally serve as a crutch, and may remove the support parts 140 and 250 as necessary to form a space for installing a tree support.

The roadside protection block according to the present invention can be installed by forming the planting space (150, 260) according to the shape and shape of the roadside tree due to the aforementioned form.

The support parts 140 and 250, the main frame and the auxiliary frame may be formed in a double layer structure. Preferably the bilayer consists of a lower layer comprising a non-plastic inorganic binder, aggregate, strength enhancer and vermiculite, and an upper layer located on top of the lower layer and comprising a non-plastic inorganic binder, strength enhancer, sand, pigment, ocher and petroform extract. Characterized in that it can.

When the roadside protection block of the present invention is used, cracking and dropping do not occur even when used for a long period of time, and deformation of the roadside size and growth is possible.

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

(a) Non-plastic Inorganic binder

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 by-product 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 cement 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 can improve the strength of cement because of excellent breathability, water retention, and strength, and moisturizing effect on roadside protection blocks. It helps the plant grow by giving it and smoothing the air flow. In addition, the ore used in the present invention is an alkaline ore can further improve the strength of the cement 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.

At this time, 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 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 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 cement, but also the alumina component contained in the blast furnace slag reacts with gypsum to form a hydrate-based hydrate, forming a dense skeleton structure. Can increase the strength.

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, a non-plastic inorganic binder according to the present invention is prepared.

According to the present invention, the non-plastic inorganic binder having blast furnace slag as a main material 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 the lower layer of the roadside protection block to improve the 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 aggregate 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 may not be wide, and thus the permeability may be lowered. The mechanical strength may be lowered.

(c) strength enhancers

Strength enhancers used in the present invention can be used in both the lower and upper layers of roadside protection blocks 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 lower layer has good water absorption, water permeability, drainage, water retention, etc., resulting in increased water retention, water permeability, and moisture retention of the roadside protection 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 upper 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 is preferable to select a color that is compatible with the surrounding landscape.

(g) Ocher is a major constituent of soil, which is used to produce trees close to the soil so that roadside protection blocks 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 top 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 colors.

The mixture for the front part 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 manufactured with high rigidity. Can be.

Additional composition

The lower layer and the upper layer of the roadside protection 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 roadside protective block.

The method of manufacturing the first frame to the fourth frame and the support of each of the roadside protection block of the present invention comprises the steps of: (A) injecting a mixture for the lower layer comprising a non-plastic inorganic binder, aggregate, strength enhancer and vermiculite, (B) laminating a mixture for the upper layer comprising a non-plastic inorganic binder, strength enhancer, sand, pigment, ocher and petrofoam extract on top of the mixture for the lower layer and bonding the upper mold, (C) step (B) Curing the semi-finished tree-shaped protection block molded in the step; And (D) short manufacturing the surface of the front part of the cured roadside protection block, and then manufacturing the assembly.

First, in step (A), the mixture for the lower layer containing the non-plastic inorganic binder, aggregate, strength enhancer and vermiculite is injected into the lower mold.

Next, in step (B), the upper layer mixture including the non-plastic inorganic binder, strength enhancer, sand, pigment, ocher and petrofoam extract is laminated on the lower layer mixture, the upper mold is combined, and then pressurized to protect the roadside. Mold the block semifinished product.

Next, in step (C) by completing the molded roadside protective block semi-finished product in a curing room at 45 to 50 ℃ for 24 hours to complete the roadside protection 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.

Next, in step (D), the surface of the upper layer of the cured roadside protection block may be short-processed to give a feeling of natural stone matching with the surrounding environment.

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

76.5% by weight of blast furnace slag, 5% by weight of red mud, 1% 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 3. 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 4. 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 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 red mud.

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 quartz.

Manufacturing example 7. 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 8. 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.

Example One.

The mixture for the lower layer consisting of 40 parts by weight of the aggregate, 8 parts by weight of the strength enhancer prepared in Preparation Example 8 and 4 parts by weight of vermiculite was added to 100 parts by weight of the non-plastic inorganic binder prepared in Preparation Example 1 into the lower mold. 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 8, 30 parts by weight of sand, 5 parts by weight of pigment, 15 parts by weight of ocher and petrofoam based on 100 parts by weight of the non-plastic inorganic binder prepared in Preparation Example 1 on the lower layer mixture. After stacking the mixture for the upper layer consisting of 3 parts by weight of the extract, the upper mold and the lower mold were combined to form a roadside protective block semi-finished product.

The molded roadside protective 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 upper layer was short-treated to prepare a roadside protective block.

Example 2.

The same procedure as in Example 1, except that the non-plastic inorganic binder prepared in Preparation Example 2 instead of the non-plastic inorganic binder prepared in Preparation Example 1 to prepare a roadside protective block.

Example 3.

The same procedure as in Example 1, except that the non-plastic inorganic binder prepared in Preparation Example 3 instead of the non-plastic inorganic binder prepared in Preparation Example 1 to prepare a roadside protective block.

Example 4.

The same procedure as in Example 1, except that the non-plastic inorganic binder prepared in Preparation Example 4 instead of the non-plastic inorganic binder prepared in Preparation Example 1 to prepare a roadside protective block.

Comparative Example One.

The same procedure as in Example 1, except that the non-plastic inorganic binder prepared in Preparation Example 5 instead of the non-plastic inorganic binder prepared in Preparation Example 1 to prepare a roadside protective block.

Comparative Example 2.

The same procedure as in Example 1, except that the non-plastic inorganic binder prepared in Preparation Example 6 instead of the non-plastic inorganic binder prepared in Preparation Example 1 to prepare a roadside protective block.

Comparative Example 3.

In the same manner as in Example 1, but instead of the non-plastic inorganic binder prepared in Preparation Example 1 using a non-plastic inorganic binder prepared in Preparation Example 7 to prepare a roadside protective block.

Test Example .

The physical properties of the roadside protective 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: Measured 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. Absorption rate (%): Measure by KS F 2459 (Test method of absorbance of concrete).

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

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

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

8. Compressive strength: The test shall be carried out in accordance with KS L 5201: 2006 (Cementation time test method).

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

10. Hexavalent chromium dissolution test: Performed 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.

11. Whitening: Marks 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.

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

division Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Comparative Example 3 Major Porosity (%) 27.4 25.1 25.3 25.9 24.8 20.5 20.1 Permeability coefficient (mm / sec) 3.5 3.1 3.0 3.2 2.9 2.1 2.2 Moisturizing (%) 12.8 11.9 11.7 12.2 9.7 9.5 9.6 Absorption rate (%) 5 4 4 3 8 8 7 Setting time-first minute 245 255 250 247 211 207 231 Setting time-closing
(Hours: minutes) 4:11 4: 8 4:20 4:37 5:50 5:57 5:37 Flexural strength (kgf / cm ² ) 141 140 138 144 104 117 106 Tensile strength (kgf / cm ² ) 59 55 54 57 45 44 43 Compressive strength (N / mm ² ) 3 days 35.4 34.0 34.1 34.5 25.9 25.7 25.0 7 days a year 49.9 45.5 45.9 46.2 37.2 32.8 31.1 28 days old 78.7 75.8 76.1 76.4 58.8 52.9 51.4 Thermal strength (%) 2.48 2.21 2.24 2.20 1.67 1.60 1.55 Hexavalent chromium radish radish radish radish radish radish radish Whitening One One One One One 4 One Stability (%) 0.07 0.05 0.05 0.04 0.03 0.03 0.04

As shown in Table 1 above, the roadside protective block prepared according to Examples 1 to 4 of the present invention was confirmed that the quality is superior to Comparative Examples 1 to 3, especially high porosity only shows excellent water permeability In addition, it was confirmed that the strength, moisture retention, water absorption.

100: roadside protection block 110: first frame
120: second frame 130: third frame
140: support portion 150: planting space
200: roadside protection block 210: first frame
220: second frame 230: third frame
240: fourth frame 250: support portion
260: planting space

Claims

(A) an underlayer comprising non-plastic inorganic binder, aggregate, strength enhancer and vermiculite;
(B) an upper layer positioned on top of the lower layer, the upper layer comprising a non-plastic inorganic binder, a strength enhancer, sand, a pigment, ocher and a petrofoam extract;
As a roadside protection block comprising a plurality of support and main frame and an auxiliary frame comprising a,
The non-plastic inorganic binder, blast furnace slag 70 to 80% by weight, red mud 5 to 10% by weight, 1 to 5% by weight ore selected from the group consisting of quartz, senidine, feldspar and albite, gypsum 10 to 20 After blending by weight%, 0.5-2% by weight of aluminum sulfate, 0.5-1% by weight of quicklime or hydrated lime, 0.5-3% by weight of limestone and 0.5-2% by weight of crude oil, it is powdered at 4,000-6,000 cm ² / g. A roadside protective block, characterized in that it is manufactured by grinding to have.

The method of claim 1,
The strength enhancer includes all of the following components (a) to (d), and the roadside protective block 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.

3. The method of claim 2,
The strength enhancer is a roadside protection block further comprises 0.1 to 10% by weight of a chain cutting inhibitor.

The method of claim 1,
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. Street tree protective block, characterized in that the unit weight of 1350 to 1450 kg / m ³ mixed in a weight ratio of any one of: 3 or 3: 7.

5. The method of claim 4,
The recycled aggregate is a roadside protection block, characterized in that at least one selected from the group consisting of waste concrete, waste ceramics, waste tiles, waste boards and waste panels.

3. The method of claim 2,
The elastomer resin of the strength-improving agent is a row tree characterized in that the 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. Protective block.

3. The method of claim 2,
The petroleum resin of the strength enhancer is a roadside protection block, characterized in that the rosin-based resin or terepene resin.

3. The method of claim 2,
The organic acid of the strength enhancer is a roadside protective block, characterized in that at least one selected from the group consisting of adipic acid, fumaric acid, fish acid, stearic acid, oleic acid, pilmic acid, lauryl acid, (anhydrous) maleic acid and (anhydrous) terephthalic acid.

The method of claim 1,
The plurality of supports, the main frame, and the auxiliary frame further include an additional composition including all of the following components (i) to (iii) in each of the lower layer and the upper layer, in an amount of 5 to 7 parts by weight based on 100 parts by weight of the non-plastic inorganic binder. A roadside protective block 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.

10. The method of claim 9,
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. A roadside protective block, characterized in that at least one mixture of 20 to 80 parts by weight.

The method of claim 1,
The roadside protection block is an auxiliary frame having a vegetation space formed inside the main frame, wherein the main frame is divided into eight sections, and the auxiliary frame is divided into four to eight sections. Protective block.

12. The method of claim 11,
The main frame includes a plurality of first frames and second frames,
The first frame is installed between the right side of the support and the left side of the second frame,
The distance between the support and the second frame is wider from the outer side of the first frame toward the inner side,
The width of the first frame is made narrower from the left side to the right side of the first frame,
The second frame is installed between the right side of the first frame and the left side of the support,
The distance between the right side of the first frame and the left side of the support becomes narrower toward the inner side from the outer side of the second frame,
The width of the second frame is narrower from the left side to the right side of the second frame;
The auxiliary frame includes a plurality of third frames,
The inner side surface of the third frame is located on the inner side surface of the first frame,
The width of the third frame is a roadside protection block characterized in that the narrower from the left side to the right side of the third frame.

12. The method of claim 11,
The main frame includes a plurality of first frames and a second frame, and the auxiliary frame includes a plurality of third frames and a fourth frame,
The first frame is installed between the support and the third frame,
The first frame has a structure in which an outer surface of the first frame adjacent to the inner surface of the support part is concave, and an inner surface of the first frame adjacent to the outer surface of the third frame is concave,
The other second frame is located on each of the right side and the left side of the first frame,
The second frame is installed between the first frame and another first frame,
The fourth frame is located on the inner side of the second frame,
The third frame is located between each fourth frame,
The inner surface of the third frame is convex toward the first frame, the outer surface is made of a convex structure toward the inner surface,
The fourth frame is a roadside protection block, characterized in that located between each third frame.

The method of claim 1,
Removing the support portion of the roadside protection block, characterized in that to form a space for installing the tree support.

Each of the main frame, the auxiliary frame and the supporting part constituting the roadside protection block,
(A) injecting a mixture for the lower layer comprising a non-plastic inorganic binder, aggregate, strength enhancer and vermiculite into the lower mold;
(B) stacking a mixture for the upper layer comprising a non-plastic inorganic binder, 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 protective block semi-finished product formed in the step (B); And
(D) short-processing the surface of the upper layer of the cured protective block; after the manufacturing, including the main frame, the auxiliary frame and the manufacturing method, characterized in that to manufacture by assembling,
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 %, 0.5-2% by weight aluminum sulfate, 0.5-1% by weight of quicklime or hydrated lime, 0.5-3% by weight of limestone and 0.5-2% by weight of crude oil of the roadside protective block using an inorganic non-plastic binder Manufacturing method.

16. The method of claim 15,
The strength enhancer is 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 of the roadside protective block Manufacturing method.