KR102073375B1 - Composition for soil pavement including woodchip and construction method of soil pavement using the same - Google Patents

Abstract

The present invention relates to an eco-friendly soil pavement composition having a wood chip, and to a soil paved road constructing method using the same. The present invention can increase a recycling rate of various waste woods, suppress generation of an environmental harmful substance, improve physical and chemical features such as permeability, acid resistance, and basic resistance depending on a forming method, and provide shock absorbing properties which break a hard surface of a conventional road pavement. The eco-friendly soil pavement composition having a wood chip comprises: 5-30 wt% of the wood chip having 10-20% of water content and 5-50 mm of a size; 20-50 wt% of a binding material; 30-50 wt% of soil; 0.5-5 wt% of a resin reinforcing material; and 0.05-0.5 wt% of ceramic powder.

Description

Composition for soil pavement including woodchip and construction method of soil pavement using the same}

The present invention relates to an environmentally friendly soil pavement composition containing a wood chip (wood chip in this application is a horizontal fiber shape) and a construction method using the soil pavement, and more specifically, It is possible to increase the recycling rate of waste wood, to suppress the generation of environmentally harmful substances, and to improve the physical and chemical properties such as permeability, acid resistance and base resistance, depending on the molding method, and to remove the hard surface of existing road pavement materials. It relates to an environmentally friendly soil pavement composition containing a wood chip having a shock-absorbing and earth pavement construction method using the same.

Pavement is closely related to people's movement, convenience, and quality of life. It can be divided into road pavement for automobiles and pavement such as sidewalks, walkways, parks, plazas, and the like. Indian paving materials include cement brick (ILB), natural stone paving, and clay brick's assembly type, and soil pavement, asphalt, concrete, pitcher, and asphalt concrete.

 These packaging materials are mainly made of materials that combine eco-friendliness and functionality, such as clay blocks, ascones, pitcher cones, soil pavement materials, which are in the limelight for landscaping recently. The reason for this is that the use of ascon or permeable cone is inexpensive, easy to construct, and permeable functionality, and in the case of clay brick, the effect of landscape composition due to various natural colors due to the coloring elements present in the clay at high temperature firing. In recent years, packaging materials require more functionality, and in particular, they seek convenience for users through such things as stability, walking, and aesthetics of the surrounding landscape, and additional functions such as water permeability, water retention, hygroscopicity, elasticity, and shock absorption are added. It is required. In addition to increasing consumer awareness of the use of eco-friendly materials, environmentally-issued packaging materials are used in the market due to the use of volatile organic compounds (VOCs) such as cement, benzene, toluene, and xylene in the form of high energy and high resource consumption. Eco-friendly materials are becoming more popular due to rising awareness of health and the environment, such as environmental hazards. In addition, urban heat island phenomena caused by urbanization are increasing global warming, and the demand for development of materials that block and reflect the sun's radiant heat is gradually increasing. It can be said.

On the other hand, wood is one of the materials that has been utilized as a building civil engineering material with various functions since ancient times, and has been used a lot of fuels and building structures. Korea's timber consumption of about 27 million m ³ of timber self-sufficiency rate is at 10% of the rest is dependent on imports from Indonesia, Malaysia, New Zealand, etc., translates it into the amount has reached 4 trillion won. However, the waste wood produced in the process of using wood is 1.76 million tons per year, including construction waste wood 250,000 tons, household waste wood 610,000 tons, workplace waste wood 220,000 tons, workplace waste wood 68% tons. Only 68% (1.19 million tons) of the amount generated is recycled and the remaining 560,000 tons are landfilled and incinerated. In light of economics, 1.72 million four-ton trucks worth 700 billion won are incinerated or disposed of by using the National Forest Service's data, which directly leads to waste of resources as well as environmental issues. In addition, since the Ministry of Environment has banned landfilling of waste wood since May 2004, it has been added to incineration, resulting in the generation of pollutants by dioxin and CO ₂ gas emissions (absorbing 450 g of CO ₂ gas per 1 m ³ ) There is an urgent need for measures to develop the recycling sector in the industry.

The domestic technology development or construction of the soil pavement using such waste wood is very insufficient, and among them, Patent No. 10-0829164, "Permeable road pavement containing liquid ceramic binder and its manufacturing method", The technology of constructing road pavement materials using wood chips such as chaff and bark, cement, hardener and liquid binder has been published. This invention technology is composed of boric acid compound and liquid binder which hardens and promotes cement and cement as hardener of wood chip, and liquid binder of such material has elasticity and tensile property of fiber which is a unique property of wood chip. And a mechanism for controlling shock absorbency. The alkali silicate compound, which is the main substance of the liquid binder, generally uses sodium methyl silicate (water glass), which is known as a raw material used as a fastener and strength enhancer for cement. Sodium methyl silicate is composed of Na ₂ O and SiO ₂ , SiO ₂ is a rapid agent that is hardened by gelation while producing a cement hydration product in water when contacted with CaO, the main component of cement in the water dispersion state. This fastener is used for solving the problem of deteriorating physical and mechanical properties when used in road paving materials requiring compressive strength because wood chips are not hard and flexible. The above patented constructs are very advantageous to exhibit rigidity but are not suitable raw materials for packaging materials that impart water retention and impact absorption properties. In addition, Na ₂ O is a very soluble oxide and has a very weak property of water resistance. When a large amount of this component is included in the packaging material, it dissolves as ions due to moisture contact during rainfall and combines with carbon dioxide in the air to form a white precipitate in the process of drying the pavement surface. This is Na ₂ CO ₃ which is well known as whitening. The production of these substances is also a material that should be avoided because bleaching in packaging is often the subject of claims.

Other than that, almost no inorganic wood chip packaging technology exists.

An example of developing a wood packaging material using wood chips using the other binders will be introduced. Korean Patent Laid-Open Publication No. 2003-0019501 discloses the contents of a road surface formed by forming a wood layer on which a bark cut material, which is a bark fragment, is connected with a binder on the road surface, and applying an emulsified binder, which is a decolored emulsified asphalt material, on the wood layer. Posting

In addition, Korean Patent Publication No. 2006-0034189 discloses the contents of a packaging material manufactured by using a wood chip, a solvent containing special rubber, an epoxy resin, and a composite binder. Korean Patent No. 10-1214366 discloses a fine-grained wood chip. The permeable packaging material used and its construction method are published, and divided into an upper layer and a lower layer, and the chip binder is characterized in that the construction using a urethane-based adhesive.

However, the patent publication technologies are packaging materials using organic binders, and they contain a large amount of organic volatiles such as VOCs, which cause atopy and cause chemical hypersensitivity. It is not compatible with environmental friendliness, which is the purpose of packaging materials for the purpose of sidewalk use. In addition, when these packaging materials are installed in apartment complexes, dense housing areas, shopping malls, etc., direct contact with pedestrians, including children, is frequently required. Thus, consumers' awareness of packaging materials using organic binders is deteriorated. In addition, the wood chip packaging material using the organic binder has a disadvantage that the wood chip must be mixed in a dry state. For that reason, it is inconvenient to use energy to dry wood chips or to dry naturally in a rainy condition for a long time. In addition, the wood chip packaging material in which the wood chips are combined with an organic binder is preferably in the form of a square piece because the amount of the binder or the amount of the binder is good. In addition, if the fiber type wood chip to be used is used, an excessive amount of organic binder must be used, and a process for drying it well to the inside is required.

The present invention provides the road paving material elasticity by applying the wood used in the construction to the pavement material, to increase the tensile strength of the pavement material by the characteristic of wood-like fibrous particles, to prevent the cracking of the pavement material, It is to provide an environmentally friendly soil pavement composition containing a wood chip (wood fiber) and a soil pavement construction method using the same, while reducing the burden on environmental pollution to the minimum and improved convenience and stability in walking.

In addition, the voids inevitably generated during the dense structure formation process of wood chips and soil have structural characteristics sufficient to store moisture for a long time, and the ceramic powder to be added has hollow particle characteristics having holes therein. Eco-friendly soil pavement material with wood chips sufficient to alleviate the problem of heat waves and abnormal high temperatures because the color of the pavement (ocher, grey, yellow, etc.) adjusted to reflect without absorbing the sun's radiant heat because It is to provide a composition and a construction method using the soil pavement using the same.

Eco-friendly earth packaging composition containing wood chips of the present invention is 5 to 30% by weight wood chip having a water content of 10 to 20% and a particle size of 5 to 50mm, binder 20 to 50% by weight, soil 30 to 50% by weight, resin-based reinforcement 0.5 ~ 5% by weight, characterized in that the composition of the ceramic powder 0.05 ~ 0.5% by weight.

In addition, the method of constructing the soil pavement using the soil pavement composition containing the wood chip of the present invention is 75 ~ 80% by weight, 5 ~ 10% by weight of aggregate, mixed in a ratio of crushed aggregate and circulating aggregate 1: 1 Constructing a base structure with an aggregate mixture obtained by mixing 10-15 wt% of the binder and 0.5-1 wt% of the acrylic latex copolymer;

5 to 30% by weight of wood chips having a water content of 10 to 20% and a particle size of 5 to 50 mm, 20 to 50% by weight of binder, 30 to 50% by weight of soil, 0.5 to 5% by weight of resin-based reinforcement, and 0.05 to 0.5% by weight of ceramic powder Mix evenly with water, mix wood chips, resin-based reinforcement, ceramic powder, and 70% mixed water, mix 30% of binder and mixed water. Preparing;

A primary laying step of laying the wood chip mixture on top of the base structure;

A first voltage step of providing a plasticity and filling property by stepping on the first installed wood chip mixture;

Eye construction step for the first installation to prevent cracking;

A secondary laying step of laying the woodchip mixture on top of the primary deposit for surface gradient;

A second voltage step of vibrating a second installed wood chip mixture with a compactor compactor;

The secondary voltage wood chip mixture is characterized in that it comprises a curing step of covering the acrylic resin dilution arithmetic or thermal insulation sheet.

The present invention is environmentally friendly using wood chips (wood fibers) manufactured by using soil, a binder and a resin-based reinforcement, and cutting waste wood, and the wood chip soil pavement obtained by using them has elasticity, elasticity, acid resistance and base resistance. This is excellent and there is an effect that can be usefully used as a paving material for various roads, or a trail.

In addition, the present invention can increase the recycling rate of various waste wood, suppress the generation of environmentally harmful substances, it is possible to improve the physical and chemical properties such as permeability, acid resistance, base resistance, etc. It is effective to provide a shock-absorbing soil pavement away from the hard surface of the.

In addition, the packaging material according to the present invention exhibits excellent thermal insulation effect when combined with characteristics such as missing voids generated during the densification of soil and wood chips, heat shielding performance of the optionally added ceramic powder, and high water retention of wood chips. There is an effect that it becomes possible to reduce the reduction more actively.

1 is a construction sequence diagram of the soil pavement using the environmentally friendly soil packaging material containing wood chips according to the invention.
Figure 2 is an example of an eco-friendly dirt pavement road containing wood chips according to Example 1 of the present invention
Figure 3 is an exemplary view of an eco-friendly dirt pavement containing wood chips according to the fourth embodiment of the present invention.
Figure 4 is an exemplary view of an eco-friendly dirt pavement containing wood chips according to the fifth embodiment of the present invention.
Figure 5 is an example of an eco-friendly soil pavement road containing wood chips according to the sixth embodiment of the present invention.

The present invention to achieve the above technical problem,

Wood chips; Binders; Soil and resin reinforcement; It provides an environmentally friendly earth packaging material comprising wood chips comprising a ceramic powder.

5 to 30% by weight of the wood chip, 20 to 50% by weight of the binder, 30 to 50% by weight of soil and 0.5 to 5.0% by weight of the resin-based reinforcement in the present invention; It is preferable that the ceramic powder contains 0.05 to 0.5% by weight.

Particularly in the binder, the special solidifying agent developed by the company is used, and the composition group of the solidifying material is composed of a mixture of portland cement, slag, natural gypsum, aluminum sulfate and lime, and other materials.

In the present invention, the wood chip (wood fiber) is preferably used in the range of 5 to 30% by weight. If it is used less than 5% by weight, the wood chips are all buried in the package, so it is difficult to express the texture of the wood surface, and it is desirable to expect shock absorbency or water retention, and when it exceeds 30% by weight, it is good to express the wood texture, but This lowers the problem of under durability as a packaging material. Further preferred range is 5 to 25% by weight of wood chips. The wood chips have a needle shape, and it is preferable to use the wood chips by using a mesh net of 50 mm or less and 5 mm or more. If there are a lot of fine powder in the wood chip, the bonding force of the binder is reduced, the fall phenomenon during walking and the resulting breakage of the pavement can occur, there is a problem that the dropped powder, such as the blown off blown uncomfortable walking. In addition, if 50mm or more fiber is included, it is difficult to uniformly mix when mixing, and the blender may be damaged due to the power overload of the blender due to the entanglement of the fiber.If the fiber is long even during mixing and pouring, it protrudes to the packaging surface. It is difficult to express uniform physical properties due to the local concentration gradient of powder, soil and fiber. The wood chips do not need to be post-treated, such as drying. In case of using urethane or epoxy resin, there was a problem that it should be dried because water generates bubbles. However, in this application, it is possible to select and use only the particle size in a pulverized state, so it is easy to access work and expensive resin. It is economical competitive because it does not use. The weight of wood chips is in the range of 0.3kg to 0.6kg per 1L, so when the weight is used in the compounding design, 100kg of wood chips corresponds to 125kg of binder and 150kg of soil. 3: has a characteristic equivalent to 1: 1.

In the present invention, the binder is a special solidifying material is usually composed of portland cement and a reaction aid, the reaction aid is 60 to 89% by weight of the slag selected from the group consisting of blast furnace slag, steelmaking slag, and non-ferrous slag; 5 to 20% by weight of gypsum selected from the group consisting of natural anhydrite, alpha-type hemihydrate gypsum, phosphate gypsum and waste gypsum; 5 to 20% by weight of at least one selected from the group consisting of waste fossil, waste lime, quicklime and hydrated lime, calcium fluoride and lime nitrogen; 0.5 to 10% by weight of a basic substance selected from at least one of calcium hydroxide and sodium hydroxide; And 0.5 to 5% by weight of alum selected from at least one of ammonium alum and potassium alum. In addition, 0.5 to 3 parts by weight of titanium dioxide alone photocatalyst, a composite photocatalyst in which various metals and metal compounds are fused with titanium dioxide, and the like may be additionally added to 100 parts by weight of the binder in an urban field where fine dust may be generated. .

The reaction aid composition is usually formulated from adding 67 parts by weight (40%) to 140 parts by weight (58%) with respect to 100 parts by weight of Portland cement. The photocatalyst is not particularly limited in form to be used, and may be used in the form of powder in the composition of the reaction aid, and may also be used as a method of applying the surface to the surface after constructing the soil packaging composition. In addition, if the method of grinding, brushing or washing with water is scheduled, it is recommended to apply it after the work is completed.

The reaction aid prevents premature drying (summer season) of the cement and wood chip and soil pavement mixture, promotes the production of hydration products, increases the production of ettringite, and gives the long-term strength vapor effect of cement. .

As used herein, the binder may be used in an amount of 20 wt% to 50 wt%. If it is 20% by weight or less, it is not enough to combine wood chips having a volume of 3 times per unit weight as a binder, and when it is 50% by weight or more, it is economically inferior and is too hard to reduce elongation at walking. There is a problem that the competitiveness of the packaging material falls. The binder is made by developing alternative materials to alleviate the environmental problems of the cement industry.In the cement production process, carbon dioxide is about 1ton (400kg from coal fuel and 450kg from decarbonated due to the crystal phase change of limestone) compared to 1ton of cement production. It is reported that it is generated, and the factors of climate change such as the abnormal temperature of the earth are due to the greenhouse effect of carbon dioxide. In order to suppress the generation of carbon dioxide, the present invention not only suppresses the amount of carbon dioxide generated by reducing the amount of cement used, but also does not undergo a process such as burning or discarding waste wood, so the actual carbon dioxide reduction effect is higher than expected. I think it's big.

In the present invention, the resin-based reinforcing material is a resin such as rosin purified from rosin, natural resin such as natural copal extracted from wood, resin, natural resin such as liquid latex, water-soluble urethane, water-soluble urethane silicon, water-soluble acrylic urethane silicon, acrylic silicon, etc. At least one synthetic resin is characterized in that selected. The resin-based reinforcing material is preferably composed of 0.5 to 5.0% by weight. When the resin-based reinforcing material is used in less than 0.5% by weight, there is a limit to increase the tensile strength, there is a problem such as dropping due to the drop in the bonding strength, when used in more than 5.0% by weight, the economic efficiency is lowered due to the increase in cost, or There are problems, such as providing a habitat for fungi in the shade, and lacking durability.

In particular, the resin-based reinforcement serves to increase the binding force of the binder and the cohesion and binding force. In addition, in order to reinforce the low bond between the wood chip and the binder, the resin-based reinforcement is first mixed with the wood chip to coat the wood chip with the resin, and the binder is added to the powder. By adjusting the construction order so as to bond together, it is possible to increase the tensile strength and cohesive force which are advantages of the resin-based reinforcement. In addition, the resin-based reinforcing material is a material that exhibits a strong hydrophobicity after combining both natural and synthetic, it is possible to block the inflow of water into the wood chip can suppress the decay of the wood chip in wetlands or shady places. In this application, the input of material is a very important factor. If resin-based reinforcement is added after mixing wood chips and binders, it is possible to improve the cohesiveness and tensile strength of the binders, but the effect of improving the bond strengths of the wood chips and soil and the binders is inferior and it completely blocks water inflow into the wood chips. Because of the difficulty, it is difficult to control the decay of wood chips and the occurrence of mold in long rainy season, wetlands and shaded areas.

In the present invention, since the ceramic powder has a particle range of several nanometers to several hundred nanometers, even if a small amount is used, the dispersion range is sufficiently distributed throughout the packaging material, and because the content mainly acts on the surface of the packaging surface. It doesn't have to be much. The ceramic powder is preferably used in the range of 0.05% by weight to 0.5% by weight. When used at less than 0.05% by weight, it is difficult to expect the desired thermal insulation and thermal insulation properties, it is difficult to meet the criteria of the thermal insulation packaging material that induces a temperature difference of more than 8 ℃ compared to concrete or asphalt pavement. If it exceeds 0.5% by weight, the thermal insulation performance or heat insulation is high, but the raw material is very expensive, there is a problem that the market competitiveness is lowered due to raising the unit price of the packaging material. In addition, a large amount of powder does not function properly, and fulfills its function as a filler, there is also a problem of low efficiency. The ceramic powder may be used in the form of a powder or in the form of an emulsion dispersed in a resin-based reinforcement. In addition, if the powder is not available in the form of powder on the site, it can be used as a method of dispersing the resin-based reinforcing material, and then spraying on the surface to naturally penetrate the lower surface of the pavement. When used in the form of surface spraying, however, the resin-based reinforcement may be diluted with water at a ratio of about 1: 3 to 1: 9. This is because it is difficult to penetrate the resin-based reinforcement of the excess concentration on the pavement surface, it is preferable to use the lower concentration so as to penetrate into the pavement because it can form a coating film of the organic layer while remaining on the pavement surface. In addition, if a coating film is formed on the surface, mold or discoloration may appear in a shaded or wet area, and thus a part that requires attention is required.

Ceramic powder is aluminosilicate hollow ceramic, hollow nano silica, natural hollow balun (volcanic ash, siras), selected fly ash generated from thermal power plant, fumed silica, zeolite powder (zeolite has hole inside) Characteristics), activated carbon, diatomaceous earth, ALC concrete grinding powder, and the like.

Hollow means hollow inside like a ping pong ball, and the hollow ceramic powder has a structure that forms an air layer inside the hollow, thereby forming a ceramic film (insulation layer), which has an excellent thermal insulation and condensation prevention function. It is. In addition, the fine hollow particles block the absorption of heat, and the natural space generated during the construction process can also impart such a thermal insulation effect.

Hereinafter, the present invention will be described in more detail.

The present invention is to suppress the generation of carbon dioxide or volatile organic compounds, such as environmentally friendly soil packaging material containing wood chips with improved physical and chemical properties such as water permeability, elasticity, impact resistance, acid resistance, base resistance, and soil packaging using the same We provide thing about road construction method.

According to the present invention, unlike the pavement materials, the earth pavement composition containing the eco-friendly wood chips improved in various physical properties including walking, landscape, elasticity, shock absorption, and permeability, and a pavement construction method using the same are provided. By increasing the recycling rate of low-used logging wood, construction waste wood, domestic waste wood, and workplace waste wood, it will be an opportunity to revitalize the wood market and change the new paradigm in the packaging market. In terms of environmental aspects, the environmental burden on the use of hazardous materials is small, the environmental pollution that may occur during the manufacturing process is suppressed, and environmentally friendly packaging materials and manufacturing methods are used to save the environment by using materials that are the main causes of environmental pollution. It is possible to do

In particular, in the present invention, the development of the soil packaging composition including wood chips can significantly reduce the carbon dioxide generated during combustion by recycling wood incineration to wood chips, and because the curing temperature (cure) is completed at room temperature, carbon dioxide Since there is little generation, it can act as a part of national countermeasures against carbon dioxide reduction in recent years.

The soil packaging composition comprising a wood chip according to the present invention is a wood chip; Binders; soil; Resin-based reinforcing materials; It contains ceramic powders and polymerizes them to obtain soil pavement containing wood chips.

Wood chips used in the composition means a needle-like piece of wood obtained from wood, considering the use of waste resources, it is preferable that the wood chips are obtained from wood.

By producing wood chips from such waste wood, it is possible not only to reduce the cost required for processing waste wood, but also to suppress the generation of various harmful substances generated during the treatment. In particular, when incineration of waste wood, the wood absorbs 45% of CO ₂ , so incineration of 1 kg of wood generates 450 g of CO ₂ , and carbon is more representative when incinerated. _{Since 2} gas is expected to occur, it will be an opportunity to drastically reduce such CO ₂ gas. The wood chip is not particularly limited, but has a needle shape, and has a length of 10 to 50 mm, a width of 1 to 5 mm, and a water content of 10 to 20 wt%. This means the amount of wood that is functioning when the wood is crushed. The wood chip is not particularly limited, and may be cut into the same range of plants such as reeds processed in a similar form in addition to wood and bamboo such as conifers, hardwoods, larch, pine trees, and the like.

In the present invention, the wood chips are combined with a binder and a resin. For this purpose, the binder composition described in Patent 10-0814147 is used in this application. In some cases, a photocatalyst may be additionally used.

The binder comprises portland cement and a reaction aid, the reaction aid comprising: 60 to 89% by weight of slag selected from the group consisting of blast furnace slag, steelmaking slag, and non-ferrous slag; 5 to 20% by weight of at least one selected from the group consisting of natural anhydrite, alpha-type hemihydrate gypsum, phosphate gypsum and waste gypsum; 5 to 20% by weight of at least one selected from the group consisting of waste fossil, waste lime, quicklime and hydrated lime, calcium fluoride and lime nitrogen; 0.5 to 10% by weight of a basic substance selected from at least one selected from calcium hydroxide and sodium hydroxide; And 0.5 to 5% by weight of alum selected from at least one of ammonium alum and potassium alum. In addition, in a downtown area where fine dust may be generated, a titanium photocatalyst alone, a composite photocatalyst in which various metals and metal compounds are fused with titanium dioxide, and the like may be added in an amount of 0.5 to 3 parts by weight based on 100 parts by weight of the binder. . The reaction aid composition is usually formulated from adding 67 parts by weight (40 wt.%) To 140 parts by weight (58 wt.%) With respect to 100 parts by weight of Portland cement.

The binder is formed of a wood chip and a three-dimensionally networked hydration product and a semi-crystalline structure located around the wood chip to serve as a binder for bonding the wood chips to each other. In addition, the binder is combined with the resin-based reinforcing material to form a substrate such as polymer cement therein to act to greatly improve the resistance to bending. This, in combination with the properties of the woodchip itself, gives the resulting concrete its elasticity and elasticity. In particular, the by-products generated during the condensation polymerization process is H ₂ O, which is environmentally friendly since there is no generation of harmful substances such as carbon dioxide or volatile organic compounds.

Eco-friendly earth packaging material composition containing wood chips according to the present invention is completed by using the soil containing the aggregate, the soil containing the aggregate is not particularly limited and used, including sand, crushed stone, Masato, silica , Soybeans, etc. can also be used. Masato has the effect of filling the empty space between the wood chips and the reactivity with the binding material to improve the strength. In addition, aggregates in Masato act to break up agglomeration and entanglement of wood chips when mixed. In addition, aggregates have a high specific gravity to improve resistance to lifting of light weight wood chips, maintain deformation by suppressing deformation of soil pavement including wood chips by external forces, and mixing efficiency due to bowling of aggregates during mixing It acts to suppress the concentration gradient of the strength by increasing. The volume ratio of the wood chip to the binder is preferably in the range of 0.5 to 3 with respect to the binder 1, and can be used to vary within the range proposed above as needed. In addition, in the construction where the surface treatment is scheduled, it is good to substitute a certain amount of natural colored aggregate within the range that the soil compounding amount does not change. When used in 20 to 50% by weight of the soil use, it can be used without compromising physical properties.

Eco-friendly soil packaging composition containing the wood chip according to the present invention having the composition as described above can fill the micropores by the interaction of the resin-based reinforcement and the binder and express a compact structure by the particle assembly characteristics of the wood chip, Wood Elasticity of the chip and elasticity due to the tensile force and the elasticity of the cellulose structure can greatly improve the functionality of the packaging material.

In order to form the wood chip assembly according to the present invention, the wood chips shredded to a certain size and each sieve composed of a 5 mm sieve and a 50 mm mesh are removed to remove powder and large fibers, thereby degrading the bonding force between the binder and the resin reinforcement. It should not be, and the binder and the soil and the resin-based reinforcing material is mixed, and the composition is condensation polymerization to bond the wood chips to each other.

In particular, in order to utilize them as a packaging material, after preparing the materials constituting each component, the compound obtained by blending them is moved to the place where you want to construct, packed on the packaging surface, and then undergoes a curing process.

Concrete or asphalt are used to grind the surface of the raw material by forcibly grinding the surface using a grinding machine or similar surface treatment device to meet the needs of users who require various designs. There is a method of delaying hardening with a back light and then spraying water to remove it. This application applies this technique to make wood chips containing soil by adding wood chips texture, used soil granules, and additionally included aggregates or optionally colored aggregates that fall within the particle range of Masato. And to treat the surface was to propose a method of manufacturing a packaging material of various textures. The grinding machine is not particularly limited, and a grinding machine for polishing a surface of a highway or a concrete road surface is used. The retarder and the retardant are not particularly limited either, but suitable products can be used depending on the depth of the surface treatment.

In addition, the material of the lower base material of the environmentally friendly soil packaging composition including the wood chip pursued herein is not particularly limited. The lower base can be either sealed or permeable base material. When it is applied to shock absorption, wetlands or shady places, water can drain well and air can be introduced into the permeable concrete, asphalt, resin, etc. Pervious structure is preferred. In addition, in the case of a construction site or a site that is concerned about the inflow of water from the bottom, it is preferable to use a sealed concrete or asphalt and similar paving material to seal the bottom layer to block the water flowing from the bottom. The material is not particularly limited. However, depending on the use or construction site, it is possible to select and use a packaging material in the form of water or a sealed packaging material. In addition, in the case of the base layer structure in which water passes, it is possible to shorten the curing time of the soil pavement composition including the wood chips on the upper layer due to the rapid drying of the lower layer. Since base structures such as concrete curtains are required, they can be selected and constructed according to site conditions.

Example 1

77.5% by weight of aggregates of crushed aggregates and circulating aggregates having a size of 13 to 19 mm in a ratio of 1: 1, 7% by weight of sand, 14.5% by weight of binder, and 1.0% by weight of acrylic latex copolymer (7% of binder). Mixing with water sufficiently using a blender to construct a permeable base structure;

Manufacturing wood chips by cutting wood (natural, waste wood, etc.);

Removing powdery particles and large particles by using the sieved wood chip 5mm sieve and 50mm sieve;

After the mixture was prepared by adding 1.5% by weight of resin-based reinforcing material, 0.2% by weight of ceramic powder and 70% of blended designed water to 10% by weight of wood chips containing 10-20% of moisture removed from the previous step, Mixing the resin-based reinforcement and the ceramic powder with a blender so as to sufficiently penetrate the cellulose inside of the wood chips;

Preparing a mixture by adding 40% by weight of the binder to the resin-based reinforcing material, the ceramic powder and the mixed raw material sufficiently infiltrated with water, and adding 30% of the balance of the designed water;

Adding 48.3% by weight of soil to the mixture, and mixing the wood chips in the added mixed raw material to be sufficiently mixed;

A primary laying step of laying the mixture of wood chips on the base structure;

A first voltage step of providing plasticity and filling by stepping on the wood chip mixture placed first;

Joule-eye construction step to prevent cracking of the first installation;

A wood chip mixture secondary deposition step for surface gradient on top of the primary deposit; And

A second voltage step of vibrating a second installed wood chip mixture with a compactor compactor;

After the chopped secondary wood chip mixture well, the soil using the wood packaging soil packaging composition to cover and cure the acrylic resin dilution arithmetic solution, thermal insulation sheet or vinyl, etc. as a nourishing agent for rapid moisture evaporation and curing of the surface Complete construction of the pavement.

1 shows the construction process of the soil pavement using the environmentally friendly soil pavement composition containing wood chips, Figure 2 shows a photograph of the soil pavement road using the soil pavement containing the completed wood chips.

In order to confirm the physical properties of the composition including the wood chip on the top of the packaging material carried out according to Example 1, after finishing three-stage compaction 25 times using a 2.5kg remer in a Φ100ⅹ200mm standard specimen mold To prepare a set of three specimens.

 The prepared specimens were aged for 28 days through curing of the curing machine, and the strength test was performed according to the compressive strength tester. The compressive strengths of the finished specimens were 21.5 MPa, 22.7 MPa, and 21.2 MPa.

In order to evaluate the ability to reduce the surface temperature, the specimens were prepared by filling the mixture of Example 1 in a 150 mm × 90 mm × 50 mm steel mold. Halogen lamps were used as heat sources to measure the thermal insulation (surface temperature reduction) performance, and specifications were not specified, but commercially available ones were purchased and applied here. The running temperature of the lamp was set to 60 ℃, the distance between the specimen and the lamp was fixed to 300mm. The irradiation time of the lamp was irradiated for 30 minutes and repeated 12 times in a cycle of turning off for 10 minutes to measure the surface temperature using an infrared temperature meter. The experiment was conducted after the lamp was irrigated enough to wet the surface of the specimen, and the measured surface temperature was compared with the surface temperature of the specimen with and without cement powder and the cement block and the elastic packaging material of the comparative example. Example The thermal insulation performance of the specimens was verified. The thermal insulation performance was evaluated by how much the surface temperature rose compared to the lamp irradiation temperature. As a result, the surface temperature of the specimen was increased up to 44.8 ℃.

Example 2

In the same manner as in Example 1, the binder was changed to 34% by weight, wood chips were changed to 26.0% by weight, soil 38.3% by weight. As a result, the compressive strength of the test specimen showed the physical properties of 15.7MPa, 15.4MPa, 16.3MPa. The surface temperature was 37.7 ° C., somewhat lower than in Example 1.

 Example 3

It carried out in the same manner as in Example 1, but was carried out by changing the wood chip 18.3% by weight, the binder 30% by weight, the soil to 48.3% by weight. As a result, the compressive strengths showing physical properties were 17.5MPa, 18.6MPa, 18.1MPa. This was judged as a result of decreasing wood chip content. The temperature of the surface showed 41.6 degreeC which rose in Example 1.

Example 4

The same procedure as in Example 1 was carried out for 3 days. The surface of the cured package was polished using a grinding machine to expose the aggregate, soil particles, and wood chips to modify the surface texture. 3 shows a photograph of the surface treatment using a grinding machine.

Example 5

The same procedure as in Example 1, except that the use of the soil was changed to 20% of the natural colored aggregates compared to the soil usage. After that, the curing retardant is applied to the surface, the evaporation of the moisture and curing retardant is suppressed with vinyl, and the curing time of the binder is delayed by 12 hours, and then the surface is washed with water to expose the aggregate, soil particles and wood chips to the surface. The surface texture was modified. 4 shows photographs surface-treated.

Example 6

In the same manner as in Example 1, the curing time of the binder was delayed by 12 hours using a curing retardant, the surface was washed with water to expose the aggregate, soil particles and wood chips on the surface to deform the surface texture. 5 shows photographs surface-treated.

Comparative Example 1

The same procedure as in Example 1 was carried out except for the ceramic powder. As a result, the compressive strength of the 28-day age was 15.6MPa, 17.4MPa, 15.8MPa, the surface temperature was 48.4 ℃, showing a difference between Example 1 and 10 ℃.

Comparative Example 2

Comparative Example 2 is to compare the thermal insulation performance, the commercial cement concrete block was cut to the size of 150mmⅹ90ⅹ50mm to conduct a heat shield performance test under the same conditions as in Example 1. As a result, the surface temperature was 49.3 ° C.

Comparative Example 3

Comparative Example 3 is to compare the heat shielding performance of the rubber chip in the range of 1 ~ 2mm using a polyurethane binder cured to produce a size of 150mmmm90ⅹ50mm, and then conducted the heat shield performance test under the same conditions as in Example 1. As a result, the surface temperature was 68.5 ° C.

[Comparative Example 4]

The same procedure as in Example 1 was carried out using only binder and soil except wood chips. As a result, the compressive strength of 28 days showed 30.4MPa, 31.4MPa, 30.7MPa, and the surface temperature measured by thermal insulation test was 48.9 ℃.

[Comparative Example 5]

It carried out similarly to Example 1, but proceeded by changing the wood chip to 200 parts by weight. As a result, the compressive strength of the test specimen was 5 MPa, 4.8 MPa. The range of 5.1 MPa was shown, and the thermal insulation performance was 37.9 ° C. This is thought to be a result of the long-term retention of water initially absorbed by a large amount of wood chips in the mixed composition and the thermal shielding function of the ceramic powder.As a result, as the wood chips increase, the overall position of the binder decreases, so that the bonding strength decreases. It is judged that it led to.

As described above, in the present specification and drawings have been published with respect to preferred embodiments of the present invention, although specific terms are used, it is merely used in a general sense to easily explain the technical details of the present invention and to help the understanding of the invention. It is not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.

Claims (6)

5 ~ 30% Wood Chip with water content of 10 ~ 20%, particle size 5 ~ 50mm, binder 20 ~ 50%, soil 30 ~ 50%, resin reinforcement 0.5 ~ 5%, ceramic powder 0.05 ~ 0.5 Formulated in weight percent,
The binder is a special solidifying agent mixed with Portland cement, slag, natural gypsum, aluminum sulfate, lime,
0.5 to 3 parts by weight of a composite photocatalyst, in which a metal and a metal compound are fused with titanium dioxide, is added to 100 parts by weight of the binder,
The resin-based reinforcing material is at least one selected from rosin purified from rosin, resin or resin extracted from wood, natural resins of liquid latex, water-soluble urethane, water-soluble urethane silicon, water-soluble acrylic urethane silicon, acrylic silicone synthetic resin,
The ceramic powder is wood, characterized in that at least one selected from aluminosilicate hollow ceramic, hollow nano silica, natural hollow balun, fly ash, fumed silica, zeolite powder, activated carbon, diatomaceous earth, ALC concrete grinding powder Eco-friendly earth packaging composition containing the chip. delete delete delete delete In the method of constructing a soil pavement using the environmentally friendly soil pavement composition comprising the wood chip of claim 1,
Aggregate 75-80 wt%, sand 5-10 wt%, binder 10-15 wt%, acrylic latex copolymer 0.5-1 wt% mixed with water in the ratio of crushed aggregate and circulating aggregate 1: 1 Constructing the substrate structure with the mixture;
5 to 30% by weight of wood chips having a water content of 10 to 20% and a particle size of 5 to 50mm, 20 to 50% by weight of binder, 30 to 50% by weight of soil, 0.5 to 5% by weight of resin-based reinforcement, and 0.05 to 0.5% by weight of ceramic powder Wood chips, resin-based reinforcement, ceramic powder, and 70% by weight of mixed design water are mixed with water, and 30% by weight of binder and mixed design water are added. Preparing a mixture;
A primary laying step of laying the wood chip mixture on top of the base structure;
A primary voltage step of providing plasticity and filling by stepping on the first installed wood chip mixture;
Eye construction step for primary deposits to prevent cracking;
A secondary laying step of laying the woodchip mixture on top of the primary deposit for surface gradient;
A second voltage step of vibrating a second installed wood chip mixture with a compactor compactor;
Construction method of earth pavement using an environmentally friendly soil pavement composition comprising a wood chip comprising a curing step of covering the secondary voltage wood chip mixture with an acrylic resin dilution arithmetic or thermal insulation sheet.

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