KR102335430B1 - Climate change adaptive paving block with water conservation, thermal blocking property and water permeability and prepartion method thereof - Google Patents

Abstract

The present invention relates to a climate change adaptive paving block having water retention, heat insulation and water permeability, and more specifically, to a climate change adaptive paving block having water retention, heat insulation and water permeability, which has water retention, and water permeability of absorbing a certain amount of water during rainfall and discharging the water to the surface, provides strength enhancement and weight reduction, and has thermal insulation for effectively dissipating a heat source through a structure with one stage or two stages. A climate change adaptive paving block having water retention, heat insulation, and water permeability according to an embodiment of the present invention can achieve not only water retention as a block composition such as a soil block or soil pavement, but also secure required strength and reduce weight, can effectively respond to the depletion of groundwater and the prevention of flooding and floods by absorbing moisture from pavement during rainfall and discharging additional inflow water to the surface, and can reduce the urban heat island phenomenon by evaporating the moisture of the block during a heat wave. In addition, a climate change adaptive paving block having water retention, heat insulation, and water permeability according to another embodiment of the present invention can secure the heat insulation of a block composition by effectively dissipating a heat source caused by radiant heat.

Description

Climate change adaptive paving block with water conservation, thermal blocking property and water permeability and prepartion method thereof

The present invention relates to a climate change adaptive pavement block having water retention, heat insulation properties, and water permeability, and a method for manufacturing the same, and more specifically, to a pavement block having water retention properties, as well as water retention after absorbing a certain amount of water during rainfall and discharging water to the ground surface In order to provide water permeability, strength enhancement and weight reduction, and to effectively dissipate heat sources through a one- or two-tier structure, a climate change adaptive paving block having heat-retaining properties, heat-shielding properties, and water permeability, and a method for manufacturing the same it's about

For the convenience and safety of vehicles and pedestrians, paving materials have been developed and used. In particular, in the case of paving materials for sidewalks, concrete blocks for sidewalks are widely used because they are inexpensive, have excellent strength, are easy to change color, and are easy to construct.

However, since these concrete sidewalk blocks cut off the ground surface and the atmosphere, they cause environmental problems by making it difficult to circulate water. It is causing the problem of dropping the water, and the outflow of water moves the pollutant to the river, causing deterioration of the water quality. In addition, impervious pavement is a major cause of depletion of groundwater, which causes problems such as dryness of rivers and the urban heat island phenomenon.

In order to solve this problem, development of block paving materials with water permeability is being carried out in various ways, and measures to reduce the urban heat island phenomenon caused by urban development and global warming are devised through blocks having water retention properties. have.

In addition, a method to reduce the urban temperature by providing not only water permeability and water retention but also thermal barrier properties (thermal insulation properties) to pavements for roads and pedestrians covering the city’s ground surface has been proposed, which is an economical method. Since it can be a method to solve the problem of paving blocks, research and development are being actively carried out in various ways.

Some examples of these techniques are given below.

First, the water-retaining polymer cement mortar composition of Korean Patent Application No. 10-2015-0005012 and a method of manufacturing a water-retaining block using the same are polyacrylic acid, sodium polyacrylate, acrylamide, sulfonic acid, ethyl-methacrylate and A water-retaining polymer cement mortar composition comprising 0.01 to 15% by weight of a water-retaining emulsion containing methylbutyronitrile, 10 to 60% by weight of an inorganic binder, 10 to 70% by weight of fine aggregate, and 0.1 to 15% by weight of water, and a composition using the same It relates to a method of manufacturing a water-retaining block, which can prevent surface stains and clogging caused by bleeding, which is pointed out as a disadvantage of existing permeable concrete, is easy to repair, and has excellent strength and durability for sidewalks, parks, trails, lawns It relates to technology that can be applied to water treatment facilities such as blocks, vegetation blocks, bicycle paths, parking lots, light traffic load passing roads, infiltration type storage tanks, catchment manholes, and gutter.

In addition, the Korean Patent Application No. 10-2008-0129073, a bottom ash water-retaining block and a manufacturing method thereof, includes a first step of dividing the bottom ash aggregate into aggregates by particle size through a sieving test; A second step of preparing a bottom ash mixture by adding the bottom ash aggregate and binder, a strength enhancer and a vegetable admixture to increase water absorption, and water; Step 3 of molding the block by putting the bottom ash mixture into a mold for manufacturing blocks; And by providing a method of manufacturing a bottom ash water retaining block comprising a fourth step of curing the bottom ash water retaining block generated through the above three steps, the heat island phenomenon of the road is prevented by facilitating moisture penetration while maintaining the strength as a sidewalk block It relates to a bottom ash water-retaining block and a method for manufacturing the same.

In addition, the water-retaining block composition of Korea Patent Application No. 10-2012-0082896, the water-retaining block composition using the same, and the construction method of a green structure of a building include a water-permeable concrete composition and a water-retaining mortar composition as a composition for obtaining a water-retaining block, The water-permeable concrete composition comprises 5 to 35% by weight of an inorganic binder, 5 to 35% by weight of fine aggregate, 25 to 75% by weight of coarse aggregate, 0.1 to 5% by weight of water, and 0.1 to 15% by weight of a polymer binder, The mortar composition is an inorganic binder, 0.1 to 20 parts by weight of a polymer-based binder with respect to 100 parts by weight of the inorganic binder, 100 to 500 parts by weight of fine aggregate with respect to 100 parts by weight of the inorganic binder, and 0.1 to 15 parts by weight of water with respect to 100 parts by weight of the inorganic binder By including parts by weight, the building can be greened, the moisture replenishment period can be extended, maintenance is simple, and at the same time, it is possible to extend the durability of the building by preventing rainwater from penetrating into the building or rooting of plants. It's about technology.

In addition, the Korean Patent Application No. 10-2008-0079260, a paving block having water permeability and water retention properties, relates to a road paving block having water permeability and water retention properties at the same time. 1 water permeable layer, a second water permeable layer formed by bonding a material having a second set particle size larger than the first set particle size and disposed under the first water permeable layer, and a physical repair material that exists in close contact with the lower surface of the second water permeable layer By including a water-retaining layer formed by filling of, it is possible to secure water-retaining properties without deterioration of the water-permeable function, and relates to a paving block having both water-permeability and water-retaining properties that can function in the long term.

However, the techniques exemplified above have a problem in that they are not sufficient in terms of providing moisture retention, permeability to discharge moisture to the ground surface after absorbing a certain amount of moisture during rainfall, strength enhancement and weight reduction, and effectively dissolving heat sources through the structure.

Republic of Korea Patent Application No. 10-2015-0005012 (2015.01.13) No. "Polymer cement mortar composite with water holding capacity and manufactur method using the said" Korean Patent Application No. 10-2008-0129073 (2008.12.18) No. "A water-retentive bottom ash block and its process of manufacture" Republic of Korea Patent Application No. 10-2012-0082896 (2012.07.30) No. "Retentive block composition, method for constructing water-retaining blocks and green structures of buildings using the same (Composite for water retainable block, water retainable block and structure for planting in building using) the composite)" Korean Patent Application No. 10-2008-0079260 (08.13. 2008) "BLOCK FOR PAVEMENT HAVING WATER PERMEABILITY AND WATER RETENTIVITY"

The present invention is to solve the above problems, and when formed in a one-layer structure, a climate change adaptive paving block having water retention, heat shielding and water permeability evaporates moisture inside the block in summer and takes away the heat of vaporization, so that the surface temperature of the packaging material The climate change adaptive pavement block, which has water retention, heat insulation, and water permeability when formed in a two-layer structure as well as reducing An object of the present invention is to provide a climate change adaptive pavement block having water retention, heat insulation, and water permeability to evaporate and reduce the surface temperature of the pavement material together with the vaporization heat effect.

In addition, the present invention enables the reduction of heat waves and night tropical night phenomena by reducing the temperature of the ground surface with water retention and heat shielding properties. This is to provide a climate change adaptive pavement block with water retention, heat insulation, and permeability to prevent flood prevention and groundwater depletion with blocks to which eco-friendly water circulation techniques are applied.

In addition, according to the present invention, the movement of water (moisture) in the climate change adaptive pavement block having water retention, heat shielding properties and water permeability is due to the capillary phenomenon of the blended and molded raw materials. It is to provide a climate change adaptive pavement block having water retention, heat insulation, and water permeability in order to maintain water retention, heat insulating performance and water permeability in the long term by absorbing and discharging moisture without clogging.

In addition, the present invention provides a beneficial effect for plant growth by increasing the amount of moisture supplied to vegetation compared to other paving materials even during drought due to its high moisture content compared to existing floor pavement materials, as well as improving the performance of the existing floor paving material for water retention (absorption rate). This is to provide a climate change adaptive pavement block with water retention, heat insulation, and permeability to

However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the climate change adaptive paving block having water retention, heat shielding, and water permeability according to an embodiment of the present invention is a horizontal drainage of drainage holes 1 formed in a grid shape of two horizontal and vertical lines, respectively. It is characterized in that four holes in which the insert-type block 11c can be formed are formed in the coordinate region where the hole 1 and the vertical drain hole 2 meet.

At this time, the shape of the hole may be formed in a 1:1 matching structure with the shape of the insert-type block 11c so that the insert-type block 11c can be inserted.

In addition, the present invention is divided into upper and lower ends in the height direction so that it can be used as a block for a roadway, and a central portion 12d for receiving an external force is located at the upper end, so that the upper and lower thicknesses of the central portion 12d are located relative to other regions. It is characterized in that it is largely formed.

In addition, in order to produce a block composition of a climate change adaptive pavement block having water retention, heat insulation properties, and water permeability, a soil material component obtained by mixing natural or regenerated aggregate and lightweight aggregate; hardener components including cement components; and a catalyst component consisting of a mixture of inorganic salts; after mixing the composition for a soil package in a predetermined ratio, the composition for a soil package is placed on a mold and press-molded to form the composition.

In addition, the catalyst is an aqueous solution A obtained by dissolving inorganic salts composed of ammonium chloride, calcium carbonate, iron sulfate, calcium chloride and magnesium chloride in water, and an aqueous solution B obtained by dissolving inorganic salts composed of sodium chloride, iron sulfate, calcium chloride and magnesium sulfate in water. , sodium carbonate, iron sulfate, calcium chloride, and magnesium chloride, it is characterized in that the mixed use of a C aqueous solution obtained by dissolving in water.

The climate change adaptive pavement block having water retention, heat shielding properties and water permeability according to an embodiment of the present invention has the effect of achieving not only water retention as a block composition such as a soil block or soil pavement, but also securing required strength and reducing weight. have.

In addition, the climate change adaptive pavement block having water retention, heat shielding properties, and water permeability according to another embodiment of the present invention, the pavement absorbs moisture during rain and then discharges the additional inflow water to the surface, thereby depleting and submerging groundwater. It effectively responds to floods and floods, and it has the effect of reducing the urban heat island phenomenon by evaporating the moisture of the block during a heat wave.

In addition, the climate change adaptive pavement block having water retention, heat shielding properties, and water permeability according to another embodiment of the present invention has the effect of securing the heat shielding properties of the block composition by effectively resolving the heat source caused by radiant heat. .

1 shows a climate change adaptive paving block 10a having water retention, heat shielding properties, and water permeability according to a first embodiment of the present invention.
2 to 3 are views for explaining the climate change adaptive pavement block 10b having water retention, heat insulation, and water permeability according to a second embodiment of the present invention.
4 and 5 are views illustrating a climate change adaptive paving block 10c having water retention, heat insulation, and water permeability according to a third embodiment of the present invention.
6 and 7 are views illustrating a climate change adaptive paving block 10d having water retention, heat insulation, and water permeability according to a fourth embodiment of the present invention.
8 to 10 are views illustrating a climate change adaptive paving block 10e having water retention, heat insulation, and water permeability according to a fifth embodiment of the present invention.

Hereinafter, a detailed description of a preferred embodiment of the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, if it is determined that a detailed description of a related well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

1 shows a climate change adaptive paving block 10a having water retention, heat shielding properties, and water permeability according to a first embodiment of the present invention. Referring to FIG. 1 , a climate change adaptive paving block 10a having water retention, heat shielding properties, and water permeability according to a first embodiment of the present invention includes a base layer 12, a surface layer 11 and a heat shield-anti-slip structural layer. (13) has a heat-shielding block structure formed in this order.

In addition, the climate change adaptive paving block 10a having water retention, heat insulating properties, and water permeability according to the first embodiment of the present invention may have a joint 50 . More specifically, the base layer 12 of the climate change adaptive pavement block 10a having water retention, heat insulation, and water permeability may have four sides 51 , 52 , 53 and 54 , and each of the four sides has The joint portion 50 may be formed, the surface layer 11 may be formed on the upper end of the base layer, and the joint portion may not be formed on the surface layer.

That is, in the climate change adaptive paving block 10a having water retention, heat shielding properties, and water permeability according to the first embodiment of the present invention, the joint 50 improves workability when the block is laid, and the position between the blocks is twisted. It has a joint part to prevent cracking and peeling of the edge, and by this joint part, it is possible to minimize the filling amount of grout material (sand or silica sand) between blocks and shorten the block laying time. have.

As a block for sidewalks and roadways, it corresponds to the form shown in FIG. 1 and has the characteristics shown in Table 1 below.

division Recording rate ¹⁾ pitcher coefficient maintenance amount ²⁾ absorption rate Thermal insulation ³⁾ note 1st floor structure
formation 0% 0.1mm/sec 0.15 g/cm ³ 15% -10℃ or higher Base layer and surface layer same material two-story structure
formation 0% 0.1mm/sec 0.15 g/cm ³ 12% -10℃ or higher Base layer: water-retaining material
Surface layer: heat insulating material

Here, 1) greening rate: ratio of vegetable area to pavement area, 2) water retention rate: ratio of moisture content to block weight, 3) heat insulation: difference in surface temperature compared to asphalt when the air temperature is 30℃ or higher (asphalt - the present invention = heat insulation ) means

2 to 3 are views for explaining the climate change adaptive pavement block 10b having water retention, heat insulation, and water permeability according to a second embodiment of the present invention. Referring to FIGS. 2 and 3 , the climate change adaptive pavement block 10b having water retention, heat shielding properties and water permeability is a block for sidewalks and roadways, and can improve water permeability using gaps.

The climate change adaptive pavement block 10b with water retention, heat insulation, and water permeability has the same structure as FIG. Provides a block that does not interfere (bad effect).

That is, the climate change adaptive pavement block 10b having water retention, heat shielding properties and water permeability is a drain groove communicating from the top of the heat shield-anti-slip structural layer 13 to a partial depth of the surface layer 11 and/or the base layer 12 By forming (1), it can have the effect of promptly draining during heavy rain after construction.

On the other hand, the climate change adaptive paving block 10b having water retention, heat insulating properties, and water permeability is the same as the climate change adaptive paving block 10a having water retention, heat insulation and water permeability described above in the upper part of the surface layer 11 The heat shielding-slip-resistant structure layer 13 having the drain groove 1 formed therein may be additionally formed, and may also have various types of joints 50 as shown in FIG. 3 .

In addition, the climate change adaptive pavement block 10a having water retention, heat shielding properties, and water permeability has excellent permeability continuity because there is no reduction in rainwater discharge even for long-term use by performing drainage using a gap.

In addition, the climate change adaptive pavement block 10a having water retention, heat shielding properties, and water permeability induces rainwater to the upper drainage groove during heavy rain and flows it to the side, thereby discharging rainwater quickly.

The climate change adaptive pavement block 10a having water retention, heat insulation, and water permeability has the characteristics shown in Table 2 below.

division Recording rate ¹⁾ pitcher coefficient maintenance amount ²⁾ absorption rate Thermal insulation ³⁾ note 1st floor structure
formation 0% 1.0mm/sec 0.15 g/cm ³ 15% -10℃ or higher Base layer and surface layer same material two-story structure
formation 0% 1.0mm/sec 0.15 g/cm ³ 15% -10℃ or higher Base layer: water-retaining material
Surface layer: heat insulating material

Here, 1) greening rate: ratio of vegetable area to pavement area, 2) water retention rate: ratio of moisture content to block weight, 3) heat insulation: difference in surface temperature compared to asphalt when the air temperature is 30℃ or higher (asphalt - the present invention = heat insulation ) means

4 and 5 are views illustrating a climate change adaptive paving block 10c having water retention, heat insulation, and water permeability according to a third embodiment of the present invention. More specifically, FIG. 4a is a plan view of a climate change adaptive paving block 10c having water retention, heat insulation, and water permeability, and FIG. 4b is a side view of a climate change adaptive paving block 10c having water retention, heat insulation and water permeability. , FIG. 4c is a plan view of the insert block in the climate change adaptive paving block 10c having water retention, heat insulation, and water permeability, FIG. 4D is the climate change adaptive paving block 10c having water retention, heat insulation and water permeability A side view of the insertable block is shown.

Referring to Figures 4 and 5, the climate change adaptive paving block 10c having water retention, heat shielding properties and water permeability is a block for sidewalks, and the additional insert-type block 11c is applied to the hole of the central part 4ea. It is a block with an adjustable greening rate that can design vegetation or various colors according to the requirements.

As for the climate change adaptive pavement block 10c having water retention, heat insulation, and water permeability, when 4 insert blocks 11c are applied, the greening rate is 40%, and when the insertable block 11c is not applied, the greening rate is 60% or more, as shown in FIG. 5 this can be In FIG. 5 , a green area is a diagram indicating a green area.

More specifically, the climate change adaptive paving block 10c having water retention, heat shielding, and water permeability has a V-shaped engraved area on the corner side based on the planar structure among the hexahedral structures, and spaced apart from each other in four corner areas A trapezoidal engraved area is formed in the two places where the trapezoidal shape is formed so that the base is located outside the trapezoidal shape, so that the green area can be secured around the periphery of the hexahedral structure.

In addition, the climate change adaptive paving block 10c having water retention, heat shielding properties, and water permeability is a horizontal drain hole (1) and a vertical drain hole (2) among the drain holes (1) formed in a grid shape of two horizontal and vertical lines, respectively. ) can be formed in the coordinate area where the insert-type block 11c can be formed, four holes (Hole) can be formed.

Here, the shape of the hole may be formed in a 1:1 matching structure with the shape of the insert-type block 11c so that the insert-type block 11c can be inserted, and the insert-type block 11c is adapted to climate change having water retention, heat insulation, and water permeability. It has a rectangular structure placed obliquely about the coordinate area of the grid of the type pavement block 10c, and the corner area is provided with an extended extension, so that it is a hole of the climate change adaptive paving block 10c having water retention, heat insulation and water permeability. It is possible to provide a fastening force reinforcement structure that allows a preset external force to act upon insertion and separation of the .

In addition, the climate change adaptive pavement block 10c having water retention, heat insulation properties and water permeability is a drain groove communicating from the top of the heat shield-anti-slip structural layer 13 to a partial depth of the surface layer 11 and/or the base layer 12 (1) is formed in the form of a lattice, so it can have the effect of quickly draining during heavy rain after construction, and the heat shielding-anti-slip structural layer 13 in which the drain groove 1 is formed at the upper end of the surface layer 11 It may be additionally formed, and may also have a joint 50 .

The climate change adaptive pavement block 10c having water retention, heat insulation, and water permeability has characteristics as shown in Table 3 below, and has a higher greening rate compared to the above-described two pavement blocks 10a and 10b, while increasing water retention and Absorption rates can be kept similar.

division Recording rate ¹⁾ maintenance amount ²⁾ absorption rate Thermal insulation ³⁾ note 1st floor structure
formation 60% or more
(up to 65%) 0.15 g/cm ³ 15% -10℃ or higher Base layer and surface layer same material two-story structure
formation 60% or more
(up to 65%) 0.12 g/cm ³ 12% -10℃ or higher Base layer: water-retaining material
Surface layer: heat insulating material

Here, 1) greening rate: ratio of vegetable area to pavement area, 2) water retention rate: ratio of moisture content to block weight, 3) heat insulation: difference in surface temperature compared to asphalt when the air temperature is 30℃ or higher (asphalt - the present invention = heat insulation ) means

6 and 7 are views illustrating a climate change adaptive paving block 10d having water retention, heat insulation, and water permeability according to a fourth embodiment of the present invention. 6 and 7, the climate change adaptive pavement block 10d having water retention, heat shielding properties, and water permeability is a block usable as a block for a roadway. The overall thickness of the top and bottom is thick, so it has excellent resistance to external forces caused by heavy vehicles over 25 tons in addition to general passenger cars under 5 tons.

More specifically, the climate change adaptive paving block 10d having water retention, heat shielding properties, and water permeability includes a curved engraved area facing inward on the corner side based on a planar structure among the hexahedral structures, and the center of four corner areas. By forming the rectangular engraved area 11d facing inward at the position, it is possible to secure a greening area around the periphery of the hexahedral structure, and the corner of the rectangular engraved area 11d can also be formed as a curved surface. .

That is, the climate change adaptive paving block 10d having water retention, heat shielding properties, and water permeability has a structure divided into a central portion 12d and an outer portion 13d based on the side of the hexahedral structure, and the upper side of the outer portion 13d By forming a curved shape that is bent inward from the edge area to the upper edge area of the central portion 12d, the contact area of the upper portion of the central portion 12d with the outside may be transferred to the lower outer portion 13d.

Here, the central portion 12d may be an area in which the surface layer 11 and the additional heat-shielding-slip structure layer 13 are combined, and the outer portion 13d may be an area corresponding to the base layer 12 .

That is, the surface layer 11 and the base layer 12 may be sequentially formed from the top of the heat shield-anti-slip structure layer 13 in the climate change adaptive pavement block 10d having water retention, heat insulation, and water permeability, It may also have eyes 50 .

The climate change adaptive paving block 10d having water retention, heat shielding properties, and water permeability according to the fourth embodiment of the present invention has the characteristics shown in Table 4 below, and the climate having the water retention, heat shielding properties and water permeability described above Similar to the change adaptive paving block 10c, while the greening rate is higher than the two paving blocks 10a and 10b, the water retention and water absorption can be maintained similarly.

division Recording rate ¹⁾ maintenance amount ²⁾ absorption rate Thermal insulation ³⁾ note 1st floor structure
formation 60% or more
(up to 65%) 0.15 g/cm ³ 15% -10℃ or higher Base layer and surface layer same material two-story structure
formation 60% or more
(up to 65%) 0.12 g/cm ³ 12% -10℃ or higher Base layer: water-retaining material
Surface layer: heat insulating material

Here, 1) greening rate: ratio of vegetable area to pavement area, 2) water retention rate: ratio of moisture content to block weight, 3) heat insulation: difference in surface temperature compared to asphalt when the air temperature is 30℃ or higher (asphalt - the present invention = heat insulation ) means

8 to 10 are views illustrating a climate change adaptive paving block 10e having water retention, heat insulation, and water permeability according to a fifth embodiment of the present invention. 8 to 10 , the climate change adaptive paving block 10e having water retention, heat shielding properties, and water permeability is a block for roadway and has a thick central portion that receives the most load, so it has excellent resistance to external forces, and the lower layer The greening area increases by up to 65% when greening the step part of the upper and lower floors.

In addition, the climate change adaptive paving block 10e with water retention, heat insulation, and water permeability can control the speed of the upper block by adjusting the frequency of the vehicle passage by adjusting the width and spacing of the upper block, and the number of batches (2 lines -> 3 lines) do.

More specifically, the climate change adaptive paving block 10e having water retention, heat insulation, and water permeability has a greening area as shown in FIG. 10 when formed in a one-layer structure, and has a greening area as shown in FIG. can have

On the other hand, the first layer of the climate change adaptive paving block 10e having water retention, heat insulating properties and water permeability is formed of two first hexahedral extensions 11e, and the second layer is formed of two second hexahedral extensions 12e. can be formed. The height of the second extended hexahedral body 12e is 1.3 to 1.4 times higher than the height of the first hexahedral extended body 11e, and the first extended hexahedral body 11e and the second extended hexahedral body 12e are vertically orthogonal to each other. It may be formed in a combined structure. To this end, it is preferable that a fastening groove is formed in an area in contact with the second extended hexahedral body 12e among the upper regions of the first extended hexahedron 11e.

The climate change adaptive pavement block 10e having water retention, heat insulation, and water permeability according to the fifth embodiment of the present invention has the characteristics shown in Table 5 below, and the first corresponding to the lower step in the greening rate When the hexahedral elongated body 11e is not applied, it may be 60% or more, and when the step difference is applied, 65% or more.

division Recording rate ¹⁾ maintenance amount ²⁾ absorption rate Thermal insulation ³⁾ note 1st floor structure
formation 60% or more
(up to 65%) 0.15 g/cm ³ 15% -10℃ or higher Base layer and surface layer same material two-story structure
formation 60% or more
(up to 65%) 0.12 g/cm ³ 12% -10℃ or higher Base layer: water-retaining material
Surface layer: heat insulating material

Here, 1) greening rate: ratio of vegetable area to pavement area, 2) water retention rate: ratio of moisture content to block weight, 3) heat insulation: difference in surface temperature compared to asphalt when the air temperature is 30℃ or higher (asphalt - the present invention = heat insulation ) means

The block composition used in the climate change adaptive pavement block having water retention, heat insulation, and water permeability according to the present invention comprises: a soil material component obtained by mixing soil, natural or regenerated aggregate and lightweight aggregate; hardener components including cement components; and a catalyst component consisting of a mixture of inorganic salts; by mixing in a predetermined ratio to form a composition for a block composition, the composition for a block composition is placed on a mold and press-molded to form a block composition.

At this time, the catalyst is an aqueous solution A obtained by dissolving inorganic salts composed of ammonium chloride, calcium carbonate, iron sulfate, calcium chloride and magnesium chloride in water, an aqueous solution B obtained by dissolving inorganic salts composed of sodium chloride, iron sulfate, calcium chloride and magnesium sulfate in water, It is characterized in that a C aqueous solution obtained by dissolving inorganic salts consisting of sodium carbonate, iron sulfate, calcium chloride and magnesium chloride in water is mixed and used,

It is characterized in that it is prepared by adding the catalyst component to the soil material component, sufficiently dispersing and mixing, and then mixing and curing the curing agent component.

In the present invention, the soil material component is specifically 5 to 80 parts by weight of natural or regenerated aggregate based on 100 parts by weight of soil, 1 to 20 parts by weight of lightweight aggregate selected from natural lightweight aggregate, artificial lightweight aggregate, and recycled lightweight aggregate. It is preferable to use In this case, based on 100 parts by weight of soil, 0.05 to 2.3 parts by weight of the fiber-based reinforcing member may be additionally used.

By using the composition as described above, water retention can be ensured, and strength enhancement and weight reduction can be achieved.

Specifically, in the present invention, soil generated during cutting of roads, etc., on-site soil, clay, silt, peat, etc. distributed in playgrounds, parks, wetlands, high water sites, etc. can be used, and various types of soil can be used. can

In the present invention, the natural aggregate and the recycled (regenerated) aggregate are specifically, 5 to 80 parts by weight based on 100 parts by weight of the soil with a particle size of 10 mm or less, thereby providing a block composition having water retention properties (eg, soil block, soil packaging material, etc.) It can provide a crack prevention function by increasing the strength of

Here, natural aggregates are extracted from rivers or rocky mountains, and supply is not keeping up with demand due to depletion of resources, environmental problems caused by aggregate extraction, and social conflicts. Due to the characteristics and the mortar existing on the surface of the aggregate, it has a high absorption rate and a low density compared to natural aggregate. Therefore, in order to use recycled aggregate in a soil block composition having water retention properties, after understanding the characteristics of recycled aggregate, it is mixed with natural aggregate in a preset ratio and used to increase strength, dry shrinkage, reduce expansion during freezing, and thermal barrier properties. etc. can be improved.

In the present invention, as the lightweight aggregate, one or two or more types selected from lightweight aggregates selected from natural lightweight aggregates, artificial lightweight aggregates, and recycled lightweight aggregates may be used.

More specifically, the lightweight aggregate has a lighter specific gravity than ordinary aggregate among aggregates of concrete or mortar, and there are natural lightweight aggregates, artificial lightweight aggregates, and recycled lightweight aggregates. Here, in the case of natural lightweight aggregate, it is difficult to produce in a usable form in Korea.

In the case of artificial lightweight aggregate, it is manufactured using expandable shale, expandable clay, etc. as main raw materials, and must satisfy the conditions of clean appearance, strong strength, and excellent durability. In addition, the artificial lightweight aggregate must have an appropriate particle size and unit weight, must not contain harmful substances that adversely affect concrete and steel, and must satisfy the conditions that quality fluctuations according to the manufacturing process must be small.

In the present invention, the recycled lightweight aggregate may be selected from coal ash and paper-making sludge aggregate.

Coal ash is wet or dry bottom ash, and 1 to 20 parts by weight of wet and dry bottom ash with a particle size of 5 mm or more are added based on 100 parts by weight of the soil, thereby increasing strength, drying shrinkage, and reducing expansion during freezing. Prevention and maintenance can be improved.

Coal ash is obtained by collecting ash (fly ash) generated during fluidized bed combustion among cogeneration plants. More specifically, coal ash is a fluidized bed combustion boiler of a combined heat and power plant that has a combustion temperature of 800 to 1200 ° C, supplies coal to a combustion furnace filled with layer materials (sand, ash), and is burned by air injected through a dispersion plate. It is generated after desulfurization during combustion by directly injecting a desulfurization agent (limestone) into the combustion furnace in this way, and may have a CaO content of 50 to 60% by weight and a strongly alkaline powder having a pH of 11.8 to 12.5.

In the present invention, the papermaking sludge aggregate can improve strength and water retention with a particle size of 10 mm or less.

Paper sludge is sludge that is thrown away while making paper in a paper mill, and most of it has a moisture content of 50% or more.

Papermaking sludge is made homogeneous by beatering for use in the block composition composition. This is to facilitate agitation by homogenizing the paper sludge by opening and dusting.

Paper sludge aggregate is obtained by drying the collected paper sludge in a dry state with a moisture content of less than 10%, and drying the dried paper sludge in a rotary kiln at 35 rpm, 250 ° C, 50 minutes to evaporate and incinerate the remaining moisture and reactive organic materials. It is characterized in that it improves the water retention of the block composition having water retention by providing it in the form of a hydraulic reaction binder that is discharged and processed to the outside to have a granular shape.

In other words, since the paper sludge aggregate treated in this way has a spherical shape with porous particles, it can play a role in improving water retention by using the capillary phenomenon of porous particles, and because it forcibly constrains water particles, walkability, It is possible to provide an advantage in that it is possible to eliminate problems such as cracks due to drying shrinkage and deterioration in performance due to clogging of pores.

In the present invention, by adding 1 to 20 parts by weight of the lightweight aggregate based on 100 parts by weight of soil, crack prevention, water retention and lightness can be improved by increasing strength, drying shrinkage, and reducing expansion during freezing.

The lightweight aggregate absorbs about 20% or more of its own weight into the pores of the lightweight aggregate, so that when a block composition such as an earth block is manufactured with a lightweight aggregate, it has water retention properties through moisture absorption during press molding by placing it on a mold. It is possible to provide an effect of retaining moisture in the block composition.

On the other hand, in order to improve the water absorption rate using the lightweight aggregate according to the embodiment of the present invention, the lightweight aggregate is put into the extrusion and stirring device disposed in the vacuum chamber, and the foaming agent is supplied to the extrusion and stirring device to foam the lightweight aggregate. It can be manufactured through a process of heating and decompression, and discharging the expanded air in the stirrer to the outside.

That is, it is possible to mix the lightweight aggregate with the foaming agent for the foamed type lightweight aggregate mixture by the screw method. Here, in order to improve the water absorption of the soil block having water retention properties, the lightweight aggregate is an artificial lightweight aggregate, preferably having a weight average molecular weight of 50,000 g/mol or more, and a melt index of 2.5 to 3.5 g/10 min (210° C.) In the foamed lightweight aggregate mixture, 3 to 5 parts by weight of a foaming agent may be blended with respect to 100 parts by weight of the artificial lightweight aggregate having a molecular weight distribution (PI) of 2.3 or more and a melt strength of 25 mN or more. When the content of the foaming agent used to prepare the foamed lightweight aggregate mixture exceeds 5 parts by weight, the rigidity, heat resistance, and surface hardness are significantly lowered, making it unsuitable for application of earth blocks having water retention properties. It is undesirable because the specific gravity, foamability, moldability, and impact properties of the block composition are deteriorated. At this time, it is preferable that the chemical foaming agent mainly used is sodium bicarbonate (NaHCO _{3 ) mainly used.}

By using this foamed type lightweight aggregate mixture, the specific gravity can be appropriately adjusted as well as insulation properties by mixing with the foaming agent for the excessively increased specific gravity due to the addition of other aggregates in the block composition.

By mixing the fiber-based reinforcing member in the soil material component formed as described above, it is possible to further improve surface cracking, drying shrinkage, reducing expansion during freezing, and flexural toughness.

In the present invention, the fiber-based reinforcing member is preferably added in an amount of 0.05 to 2.3 parts by weight based on 100 parts by weight of the earth material component, and a synthesis of PP (polypropylene) fiber, PE (polyethylene) fiber, PVA (polyvinyl alcohol) fiber, etc. At least one of fibers, glass fibers, steel fibers, carbon fibers, and nanocellulose fibers may be used.

In the present invention, as the curing agent component including the cement component, portlant cement, blast furnace slag cement, alumina cement, crude steel cement, etc. may be used in the form of one type or a mixture of two or more types. Other lime or gypsum may be additionally used.

In addition, the catalyst in the present invention uses a mixture of inorganic salts.

The electron concentration of the catalyst is increased by a large amount of ions present therein, and the ionization reaction of inorganic components such as silica in the soil component is activated.

In the present invention, as the catalyst, ammonium salts, sodium salts, potassium salts, calcium salts, iron compounds, magnesium compounds, etc. may be used.

More specifically, the catalyst is an aqueous solution A obtained by dissolving inorganic salts composed of ammonium chloride, calcium carbonate, iron sulfate, calcium chloride and magnesium chloride in water, and inorganic salts composed of sodium chloride, iron sulfate, calcium chloride and magnesium sulfate in water. B aqueous solution, sodium carbonate, iron sulfate, calcium chloride, and an aqueous C solution obtained by dissolving inorganic salts consisting of magnesium chloride in water can be mixed and used.

At this time, the aqueous solution A is characterized in that it contains 0.5 to 5 parts by weight of ammonium chloride, 1 to 5 parts by weight of calcium carbonate, 3 to 10 parts by weight of iron sulfate, 50 to 100 parts by weight of calcium chloride, and 10 to 40 parts by weight of magnesium chloride, B aqueous solution is characterized in that it contains 10 to 30 parts by weight of sodium chloride, 1 to 10 parts by weight of iron sulfate, 30 to 80 parts by weight of calcium chloride, and 10 to 50 parts by weight of magnesium sulfate, and C aqueous solution is 10 to 40 parts by weight of sodium carbonate, sulfuric acid 1 to 10 parts by weight of iron, 20 to 80 parts by weight of calcium chloride, and 10 to 50 parts by weight of magnesium chloride.

In addition, the concentration of each of the aqueous solutions A, B, and C is 20 to 60% by weight, and each ratio is preferably mixed in a ratio of 100: 10 to 200: 10 to 200.

More specifically, in the present invention, the sodium chloride acts to induce early stiffness by promoting the formation of sulfate salts in the mixed soil.

In addition, in the present invention, calcium chloride promotes an exothermic reaction to induce a hydration reaction.

In addition, in the present invention, iron sulfate and magnesium sulfate serve to promote a sulfidation reaction to make the tissue dense. In addition, cations ionically bond with (-) groups on the soil surface through ion exchange reaction, and anions induce ionic bonds with (+) groups on the surface of cement, thereby promoting solidification and enhancing rigidity.

In the present invention, ammonium chloride serves to enhance dispersibility and cohesiveness with soil by enclosing cement particles with an absorbent film, and to maintain water absorption to agglomerate soil fine particles such as clay and to maintain long-term stability by having water retention properties.

In addition, in the present invention, sodium carbonate serves to make the tissue dense.

In addition, in the present invention, calcium carbonate serves to promote coagulation of the soil and prevent shrinkage, and it is preferable that the range of use is 1 to 3% by weight.

In addition, in the present invention, magnesium chloride reacts with cement to form ethrinzite, thereby making the tissue dense and contributing to strength expression.

The inorganic salt components included in the aqueous solution according to the present invention are all water-soluble and water-dispersible components, and are environmentally friendly because byproducts of heavy metals or other harmful substances do not occur.

The present invention is composed of a salt that is easily soluble in water and at the same time a plurality of cations ionically bond with charged anions on the surface of the soil, and the anions mediate bonding between soil particles and cement particles by ionically bonding with charged cations on the cement surface. plays a role In addition, due to the properties of each component, hydration, coagulation, and water absorption are promoted, so that the coagulation effect is expressed at an early stage and strength is increased.

Then, the soil material component, the curing agent component, and the catalyst component formed as described above are mixed in a specific content ratio to form a composition for a padding package, and then placed on a mold and press-molded to form a block composition.

In this case, the mixing ratio of the soil material component, the curing agent component and the catalyst component is preferably 100: 2 to 20: 1 to 5 weight ratio.

Specifically, the base layer 11 may be formed by placing the composition for a block composition on a mold ^{and press-molding at about 150 to 170 kg/cm 2 to form a block composition.}

In one embodiment of the present invention, in the case of the dirt block of the block composition, it is preferable to form a composite of a general block below the block and a heat shield block above the block. The general block prepares the block composition composition according to the present invention using ordinary soil as soil (soil), and then the block upper structure is a block composition for the upper structure using soil colored with a heat-shielding pigment. to form In this case, the upper structure is preferably formed to have a thickness of about 6 mm or more.

In other words, in forming the composition for the block composition, two types of soil were formed, the general soil not treated with the heat-shielding pigment and the soil treated with the heat-shielding pigment, and two types of the block composition composition were formed using the same. After that, it is put into the mold using this, but first, the composition for block composition using ordinary soil is put in, and then the composition for block composition using soil treated with heat-shielding pigment is put into the second layer (two steps) or the other three layers (3 However, if the two-layer (two-tier) or three-layer (two-tier) structure block composition according to the present invention is prepared by putting into the structure and then performing mutual attachment of these structures, thermal stabilization and curing of the blocks, 2 The single and three-tier structures may be the surface layer 11 and the heat-shielding-anti-slip structure layer 13 .

In the present invention, it is preferable to use a material having a particle diameter of less than or equal to a specific size for the earth material forming the upper layer (surface layer) by treating the heat-shielding pigment in the present invention, for example, it is preferable to use a sieving treatment so that the particle diameter becomes 5 mm. .

In the present invention, the heat shielding pigment is a compound capable of preventing temperature rise by infrared rays, for example, tin-doped indium oxide, antimony-doped tin oxide, aluminum-doped zinc oxide, indium-doped zinc oxide, tin-doped An infrared shielding agent composed of one or a mixture of two or more selected from zinc oxide and silicon-doped zinc oxide may be used, but the present invention is not limited thereto, and a compound having an infrared blocking or absorbing effect may be used without limitation.

As described above, there is also an advantage that the user's desired color can be realized by forming the upper layer (surface) of the block composition by selectively using the heat-shielding pigment.

In the present invention, it is preferable to mix 0.1 to 0.2 parts by weight of the heat-shielding pigment forming the upper layer based on 100 parts by weight of soil.

Thereafter, attachment to the formed two-stage block composition, thermal stabilization, and curing are performed.

Curing in the present invention can be carried out through natural curing or steam curing, preferably while maintaining a temperature of 30 ~ 60 ℃ natural curing for about 30 ~ 52 hours or about 1 ~ while maintaining a temperature of 30 ~ 60 ℃ Blocks can be formed by steam curing for 5 hours. The curing temperature can affect the color of the block. The higher the curing temperature, the lower the color intensity than when curing in low steam pressure or in the atmosphere. it is preferable

Then, it is also possible to form an anti-slip layer on the surface by shorting, brushing or washing the surface of the block composition formed through the above process.

The block composition according to the present invention prepared as described above satisfies the required physical properties such as impact strength and tensile strength as well as water retention and water absorption properties, and at the same time is composed of a two-layer structure of upper and lower layers, whereby the upper layer (surface) secures heat shielding properties Thus, there is an effect of preventing the heat island effect, and it is advantageous to implement the color requested by the user. Therefore, it can be used for general pedestrian roads, gardens, parks, promenades in plazas, hiking courses, etc. There is also the advantage of satisfying the sensibility of pedestrians because of its performance.

Therefore, it is expected that it will be able to contribute to the government and local government's policies to reduce greenhouse gases in local life, to effectively cope with and manage the effects and vulnerabilities caused by climate change, and to contribute to the regional climate change response infrastructure construction project.

In summary, the climate change adaptive paving block having water retention, heat shielding and water permeability according to the present invention is first, when formed in a one-layer structure, the climate change adaptive paving block having water retention, heat insulation and water permeability is a summer block Moisture evaporates inside and takes away the heat of vaporization, reducing the surface temperature of the pavement material by more than -10℃ compared to asphalt.

In addition, when formed in a two-layer structure, the climate change adaptive paving block with water retention, heat shielding and water permeability is introduced with a heat shielding material that reflects sunlight (heat) on the surface. Together with this, it is possible to reduce the surface temperature of the pavement material by more than -10℃ compared to asphalt.

As described above, the climate change adaptive pavement block having water retention, heat shielding properties and water permeability can reduce the heat wave and tropical night phenomenon at night by reducing the surface temperature with water retention and heat insulation properties in common.

In addition, the climate change adaptive pavement block having water retention, heat insulation, and water permeability according to the present invention has water permeability, and the block absorbs a certain amount of moisture during heavy rain and discharges more than the water retention amount to the lower surface, so that the eco-friendly water circulation technique is The applied block can prevent flooding and groundwater depletion.

In addition, the movement of water (moisture) in the climate change adaptive paving block having water retention, heat shielding, and water permeability according to the present invention is due to the capillary phenomenon of the blended and molded raw materials. Absorption and discharge of moisture without clogging of pores enables long-term maintenance of water retention, heat shielding and water permeability.

In addition, the climate change adaptive paving block having water retention, heat insulation, and water permeability according to the present invention has a higher moisture content compared to existing floor pavement materials, so that plant growth is advantageous by increasing the amount of moisture supplied to vegetation compared to other paving materials even during drought. can do.

In addition, looking at the water retention rate (absorption rate) of the existing floor pavement material of the climate change adaptive pavement block having water retention, heat insulation, and water permeability according to the present invention, asphalt is 5% or less, and the sidewalk block (normal block) water retention rate (absorption rate) ) is 7% or less on average, the water permeability block water retention rate (water absorption rate) is 2% or less on average, and the clay block water retention rate (water absorption rate) is 1% or less on average (based on the plastic block), as shown in Tables 1 to 5 above. It provides excellent performance.

As described above, preferred embodiments of the present invention have been disclosed in the present specification and drawings, and although specific terms are used, these are only used in a general sense to easily explain the technical content of the present invention and help the understanding of the present invention. , it is not intended to limit the scope of the present invention. It will be apparent to those of ordinary skill in the art to which the present invention pertains that other modifications based on the technical spirit of the present invention can be implemented in addition to the embodiments disclosed herein.

1: drain groove
10a to 10e: Climate change adaptive pavement block with water retention, heat insulation, and water permeability
11c: Insertion block 11d: Rectangular engraved area
12d: central part 13d: outer part
11e: first elongated hexahedron 12e: second elongated hexahedron
11: surface layer 12: base layer
13: heat shield-anti-slip structural layer 50: joint

Claims (5)

As a climate change adaptive pavement block (10d) having water retention, heat insulation, and water permeability consisting of a hexahedral structure,
Among the hexahedral structures, a rectangular engraved area 11d facing inward is formed at the center of the four corner areas based on the planar structure,
It has a structure divided into a central part 12d and an outer part 13d based on the side part of the hexahedral structure, and is curved inward from the upper edge area of the outer part 13d to the upper edge area of the central part 12d. By forming a structure that transfers the contact area of the upper portion of the central portion (12d) with the outside to the outer portion (13d) of the lower portion,
The central portion (12d) is characterized in that the surface layer 11 and the heat-shielding-non-slip structural layer are combined,
To create a block composition of a climate change adaptive pavement block having water retention, heat insulation, and water permeability,
earth material components obtained by mixing natural or regenerated aggregates and lightweight aggregates;
hardener components including cement components; and
A catalyst component consisting of an inorganic salt mixture is mixed in a predetermined ratio to form a composition for a soil package, and then the composition for a soil package is placed on a mold and formed by pressure molding,
The block composition is composed of a composite form of a general block below the block and a heat shield block above the block,
For the composition for forming the block composition, two types of block composition compositions are formed using ordinary soil not treated with a heat-shielding pigment and soil treated with a heat-shielding pigment, and then put into a mold, but first It is characterized in that the composition for block composition using general soil is added, and then the composition for block composition using soil treated with heat-shielding pigment is added to form a block composition by putting it in a two-layer structure,
As the heat shielding pigment, one or a mixture of two or more selected from tin-doped indium oxide, antimony-doped tin oxide, aluminum-doped zinc oxide, indium-doped zinc oxide, tin-doped zinc oxide, and silicon-doped zinc oxide. A climate change adaptive paving block having water retention, heat shielding, and water permeability, characterized in that it is formed using an infrared shielding agent made of
delete delete delete The method according to claim 1,
The catalyst is an aqueous solution A obtained by dissolving inorganic salts composed of ammonium chloride, calcium carbonate, iron sulfate, calcium chloride and magnesium chloride in water, an aqueous solution B obtained by dissolving inorganic salts composed of sodium chloride, iron sulfate, calcium chloride and magnesium sulfate in water, sodium carbonate , a climate change adaptive paving block having water retention, heat insulation and water permeability, characterized in that a C aqueous solution obtained by dissolving inorganic salts consisting of iron sulfate, calcium chloride and magnesium chloride in water is mixed and used.

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