KR20160141989A

KR20160141989A - Method for paving road with cement composition to reveal natural stone texture

Info

Publication number: KR20160141989A
Application number: KR1020150077734A
Authority: KR
Inventors: 황익현; 황주철
Original assignee: 황익현; 황주철
Priority date: 2015-06-02
Filing date: 2015-06-02
Publication date: 2016-12-12

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road pavement method having a natural stone surface that protrudes natural stones to enhance natural resistance and increases slip resistance and increases strength of a pavement surface, A lower layer forming step of forming and bonding a lower layer; An upper layer laying step of laying a cement mixture including a natural stone aggregate on the lower layer; A first surface release agent containing water, a water-soluble resin, a cement dispersant and cement is sprayed on the upper layer, and the cement on the surface of the upper layer is separated from the surface of the natural stone aggregate to expose the natural stone aggregate and the binding force of the exposed natural stone aggregate to the water- A first peeling step to reinforce the first peeling step; An upper layer primary compacting step in which a primary surface stripping agent is sprayed and then the surface is compacted; A second peeling step for reinforcing a bonding force of the exposed natural stone aggregate to which a second surface stripping agent mixed with water and a water-soluble resin is sprayed on the first plastered upper layer; An upper layer secondary compaction step in which a secondary surface stripping agent is applied and then the surface is polished; And a curing step of curing the upper layer after the upper layer second compaction step.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a method for packing a road having a natural stone surface,

The present invention relates to a road pavement method having a natural stone surface, and more particularly, to a road pavement method having a natural stone surface, wherein natural stones are protruded to improve slip resistance, reduce noise during road carpeting, The present invention relates to a road packaging method.

Cement road pavement methods are classified into high slump type cement concrete pavement method and low slump type cement concrete pavement method.

As the slump type cement concrete pavement method, there is Roller Compacted Concrete Pavement (RCCP) method which is applied to the road, and this packing method is applied only to the roads whose speed limit is less than 60 km per hour because of the lack of slip resistance on the surface. Particularly, cement pavement which is promised by Laura has permeable concrete, because it is mixed with pigments and recognized as an artificial package. Since the surface strength is weak, surface peeling occurs and it is not applied to roadway pavement. There is a trend.

Also, as a low-slump type cement concrete pavement method, there is a small-diameter pavement pavement method in which a natural stone is protruded in order to increase the resistance to slipping of the road. Such a pavement method is a method in which a cement retardant is sprayed on the surface, 1-2 days) The surface is wiped with a brush to protrude the natural stone. However, in the case of the small-bore protruding packaging method, the protrusion of the surface was not uniform, and a non-uniform surface was formed. Therefore, although the small pore extrusion pavement method is mainly used for road pavement for slip resistance, there is a problem that the construction is difficult due to the selection of the brush operation time for protruding the surface aggregate.

On the other hand, since the packing method of protruding the natural stone like the small-diameter protruding packing method is exposed on the surface of the road where the natural stone is laid, it can be seen with the naked eye. It is true. However, the packaging method for protruding natural stones is not yet actively applied to the road due to the difficult construction as described above.

The present applicant has proposed a road pavement method for allowing natural gravel or the like contained as an aggregate to protrude to the surface of a road pavement in a "road pavement method having a surface of a natural stone surface and a method of manufacturing a block (patent document 10-1042522; And a manufacturing method of the blow.

Patent Document 1 proposes a road pavement method having a natural stone surface by natural stones by laying an upper layer on a lower layer and spraying water after spraying a mixture of water and a high dynamic absorber after spraying with water, .

However, since the technique disclosed in Patent Document 1 does not use a material capable of reinforcing the surface because the natural stone is protruded after spraying the high-dynamic agitating agent and the water mixture as the cement high dispersing agent, the strength of the surface is lowered, There was a limitation in applying to roadway packaging.

[Patent document 10-1042522 (Jun. 13, 2011)

The present invention provides a road pavement method having a natural stone surface that protrudes natural stones to enhance natural resistance, reduces slip resistance, reduces road noise, and increases the strength of the pavement surface.

A road pavement method having a natural stone surface according to an embodiment of the present invention includes: a lower layer formation step in which a lower layer is laid down and compaction is performed; An upper layer laying step of laying a cement mixture including a natural stone aggregate on the lower layer; A first surface release agent containing water, a water-soluble resin, a cement dispersant and cement is sprayed on the upper layer, and the cement on the surface of the upper layer is separated from the surface of the natural stone aggregate to expose the natural stone aggregate and the binding force of the exposed natural stone aggregate to the water- A first peeling step to reinforce the first peeling step; An upper layer primary compacting step in which a primary surface stripping agent is sprayed and then the surface is compacted; A second peeling step for reinforcing a bonding force of the exposed natural stone aggregate to which a second surface stripping agent mixed with water and a water-soluble resin is sprayed on the first plastered upper layer; An upper layer secondary compaction step in which a secondary surface stripping agent is applied and then the surface is polished; And a curing step of curing the upper layer after the upper layer second compaction step.

The lower layer is formed at a compression strength of 100 to 350 kg / cm 2 using a cement mixture of aggregate, cement, and water. The aggregate has a maximum granularity of 40 mm or less, natural gravel, sand, cement recycled aggregate, Cement ratio of 220 to 450 kg / m < 3 > based on the maximum compaction density using at least one of aggregate, water-cement ratio W / C) is 30 to 45%.

The lower layer is formed to be non-water-permeable having a porosity of less than 8% in a wet state and a maximum compaction density standard of 1,650 to 1,900 kg / m < 3 > Or the aggregate passing through a 5 mm sieve of the aggregate is less than 20% by weight, the mixture has a porosity of 8% or more in a wet state, and a maximum compaction density standard of the aggregate is formed to be permeable to 1,550 to 1,850 kg / m3 .

The cement mixture forming the lower layer is further mixed with 2 parts by weight or less of an admixture for 100 parts by weight of the cement.

Wherein the upper layer is formed of a cement mixture containing a mixture of aggregate, cement and water at a compression strength of 100 to 350 kg / cm 2, the aggregate having a maximum particle size of 25 mm or less, crushed stone aggregate, gravel, The cement is mixed with 250 to 450 kg / m < 3 >, and the water is mixed with the water-cement so that the slump is 0 to 5 cm. (W / C) of 30 to 45%.

In the upper layer, when the maximum dimension of the aggregate is 10 mm or more, the aggregate passing through the 5 mm sieve is 20% or more by weight. When the maximum dimension of the aggregate is less than 10 mm, the aggregate passing through the 2 mm sieve is 10 % Or more, and the porosity of the mixture is less than 8% when wet, or when the maximum dimension of the aggregate is 10 mm or more, the aggregate passing through the 5 mm sieve is less than 20% by weight, Is less than 10 mm, the aggregate passing through the 2 mm sieve is less than 10% by weight, and the porosity of the mixture is 8% or more when wet.

The cement mixture forming the upper layer is further mixed with 2 parts by weight or less of an admixture to 100 parts by weight of the cement.

Wherein the primary surface release agent comprises 100 parts by weight of a water-soluble resin selected from at least one of water-soluble epoxy, acrylic, EVA and urethane, and at least one cement dispersant selected from the group consisting of a water reducing and dispersing agent, an AE agent, 20 to 200 parts by weight of cement and 100 to 1000 parts by weight of water are mixed and sprayed at 0.3 to 2.0 kg per m < 2 >.

Wherein the primary surface release agent is further mixed with 5 to 200 parts by weight of a radiator selected from at least one of yellow clay, elvan stone, germanium, zeolite, charcoal, activated carbon and silica sand with respect to 100 parts by weight of the water-soluble resin.

The secondary surface release agent is characterized in that 100 parts by weight of a water-soluble resin selected from at least one of water-soluble epoxy, acrylic, EVA and urethane is mixed with 300 to 2000 parts by weight of water and 0.2 to 2.0 kg per m 2 is sprayed.

And an upper layer homogenizing step of spraying the secondary surface releasing agent between the upper layer second compaction step and the curing step.

The first peeling step is performed within one hour after the upper layer laying step.

According to the embodiment of the present invention, a cement dispersant and a water-soluble resin are mixed with a surface release agent used to protrude a natural stone on the surface of a road, so that the road surface is peeled off with a cement dispersant, Thereby enhancing the surface smoothness and slip resistance, and at the same time, enhancing the noise reduction effect and the strength of the packaging surface when the vehicle is packed along the surface gap.

In addition, it is possible to form a natural stone pavement pavement in which far-infrared rays and negative ions are radiated by using yellow clay, etc., which emit far-infrared rays and anions by using yellow clay, elvan stone, germanium and zeolite, The temperature of the packaging surface is higher by about 2 to 5 ° C than the temperature of the surrounding packaging surface due to the heat storage effect of the charcoal and the activated carbon.

1 is a flowchart showing a road pavement method having a surface of a natural stone according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know.

First, roads packaged by the present invention are divided into a lower layer and an upper layer, and the packed roads are classified into non-waterproof packaging, drainage packaging and permeable packaging.

In this case, the non-waterproof package is formed such that both the lower layer and the upper layer are non-watertable. In the drainable package, the lower layer is formed in a non-permeable state and the upper layer is formed in a permeable state. . Thus, the non-waterproof package flows into the upper layer surface, and the drainage package is permeated to the upper layer and the upper layer is permeated to the upper portion of the lower layer, and the permeable package is permeated into the upper and lower layers.

As shown in FIG. 1, a road paving method having a natural stone surface according to an embodiment of the present invention includes a lower layer forming step, an upper layer laying step, a first peeling step, an upper layer first compaction step, a second peeling step, A compaction step and a curing step. At this time, an upper layer homogenization step may be further included between the upper layer second compaction step and the curing step, and after the curing step, a joint formation step and a surface protective agent spraying step may be further included.

The lower layer forming step is a step of forming a lower layer, wherein the lower layer is formed with a cement mixture of aggregate, cement and water at a compression strength of 100 to 350 kg / cm 2 on a 28-day basis.

The aggregate used for the cement mixture for forming the lower layer has a maximum compaction density in the state where the coarse aggregate and the fine aggregate are mixed using at least one of crushed stone aggregate, natural gravel, sand, cement recycled aggregate and asphalt recycled aggregate having a maximum particle size of 40 mm or less Standard 1,550 to 1,900 kg / m3 is mixed. Cement is mixed with 220 ~ 450kg / ㎥ and water is mixed so that the water-cement ratio (W / C) becomes 30 ~ 45% so that the slump becomes 0 ~ 5cm.

In this case, when the lower layer is made non-watertight, the aggregate passing through the 5 mm sieve of the aggregate is 20% or more by weight and the porosity of the mixture is less than 8% 1,650 to 1,900 kg / m3. When the lower layer is made water permeable, the aggregate passing through the 5 mm sieve of the aggregate is less than 20% by weight and the porosity of the wet state is 8% or more, and the maximum compaction density standard of the aggregate is 1,550 ~ 1,850 kg / m3.

To the cement mixture forming the lower layer, 2 parts by weight or less of an admixture may be further added to 100 parts by weight of the cement. In this case, the admixture can be mixed with all additives used in cement concrete such as frying oil and silica fume.

In order to form the lower layer as described above, a cement mixture in which aggregate, cement, and water are mixed is installed and plumbed by a roller. The upper layer should be laid within 3 hours after the lower layer is laid or the upper layer should be laid after 24 hours curing.

If the upper layer is laid within 3 hours after the lower layer is laid, the upper layer is laid prior to curing of the lower layer and there is no influence on the strength since the lower layer and the upper layer are compactioned when the upper layer is laid down.

However, when the upper layer is installed and compaction is performed after 3 hours after the lower layer is installed, the upper layer is installed and compaction during the process of curing the lower layer, so that the lower layer is broken and the strength is difficult to be guaranteed. Therefore, when the upper layer is not laid within 3 hours after the lower layer is laid, the upper layer should be installed after 24 hours after the lower layer is cured to some extent to ensure the strength of the lower layer. In this case, when the upper layer is laid 24 hours after the lower layer is installed, since the lower layer and the upper layer are not integrated, the cement polymer should be sprayed on the surface of the lower layer and then the upper layer should be laid.

The upper layer is a step of laying an upper layer on the surface of the lower layer, and the upper layer is formed with a cement mixture of aggregate, cement and water at a compression strength of 100 to 350 kg / cm 2 based on 28 days.

The aggregate used for the cement mixture for forming the upper layer is at least 1,550 to 1,800 kg / m 2 based on the maximum compaction density using at least one of crushed stone aggregates, gravel, M3. Cement is mixed at 250 ~ 450kg / ㎥, and water is mixed so that the water-cement ratio (W / C) becomes 30 ~ 45% so that the slump becomes 0 ~ 5cm.

20 mm, 13 mm, 10 mm, 8 mm, 5 mm, and 3 mm depending on the form and use of the pavement.

At this time, when the upper layer is made non-watertight, when the maximum dimension of the aggregate exceeds 10 mm, the aggregate passing through the 5 mm sieve is at least 20% by weight, and when the maximum dimension of the aggregate is less than 10 mm, Is at least 10% by weight, and the wet porosity of the mixture is less than 8%.

When the upper layer is made water permeable, when the maximum dimension of the aggregate is 10 mm or more, the aggregate passing through the 5 mm sieve is less than 20% by weight, and when the maximum dimension of the aggregate is less than 10 mm, The aggregate is less than 10% by weight and the wet porosity of the mixture is at least 8%.

The cement admixture for forming the upper layer may further contain an admixture of 2 parts by weight or less based on 100 parts by weight of the cement. In this case, the admixture can be mixed with all additives used in cement concrete such as cement dispersant and AE agent.

After the upper layer is laid, it is coated with water, a water-soluble resin, a cement dispersant and a cement in an upper layer installed to expose the natural stone aggregate before the cement is solidified and to reinforce the cohesion of the exposed natural stone aggregate within 1 hour after the installation The first peeling step of spraying the car surface release agent is carried out.

In the first peeling step, the cement on the surface of the upper layer is separated from the surface of the natural stone aggregate by the primary surface stripping agent to expose the natural stone aggregate, and the binding force of the exposed natural stone aggregate is reinforced with water-soluble resin and cement.

The primary surface release agent used herein is a water-soluble resin selected from the group consisting of 100 parts by weight of a water-soluble resin selected from at least one of water-soluble epoxy, acrylic, EVA and urethane, and at least one of water-soluble dispersant, AE agent, 5 to 100 parts by weight of a dispersant, 20 to 200 parts by weight of cement, and 100 to 1000 parts by weight of water are mixed and used. Further, 5 to 200 parts by weight of a radiator selected from at least one of loess, elvan, germanium, zeolite, charcoal, activated carbon and silica can be further mixed with 100 parts by weight of the water-soluble resin. Thus, it is preferable to spray the prepared primary surface stripping agent on the surface of the upper layer at 0.3 to 2.0 kg per m < 2 >.

If the amount of the cement dispersant is less than 5 parts by weight, the effect of using the cement dispersant is less than 100 parts by weight. If the amount of the cement dispersant exceeds 100 parts by weight, Because it reduces strength.

When 20 to 200 parts by weight of cement is used, one of ordinary cement and white cement is selected for cement. If less than 20 parts by weight of cement is used, there is a great influence on the strength increase. If it exceeds 200 parts by weight, Because.

The radiator is used in an amount of 5 to 200 parts by weight. If the amount is less than 5 parts by weight, there is no use effect. If the amount is more than 200 parts by weight, the protrusion is inhibited and spray spraying is difficult.

Especially, when mixed with charcoal and activated charcoal as a radiator, it has a heat storage effect as well as a far infrared ray and an anion, and is 2 ~ 5 ° C higher than the surrounding roads, so that the snow is melted faster than the surrounding snow. There is also an effect that can be configured.

The primary surface debonding agent is applied and then the upper layer first compaction step is carried out, in which the surface is plastered with at least one of a machine, a tandem, a tire, and a combi lorra.

After the first compaction step of the upper layer, a second separation step is carried out to reinforce the bonding force of the exposed natural stone aggregate, which is sprayed with a second surface release agent mixed with water and a water-soluble resin, on the first compaction upper layer.

It is preferable that 100 parts by weight of a water-soluble resin selected from at least one of water-soluble epoxy, acrylic, EVA and urethane is mixed with 300 to 2000 parts by weight of water and 0.2 to 2.0 kg per m < 2 & .

After the second surface release agent is sprayed, the upper layer second compaction step is carried out, in which the surface is hand-laid.

It is possible to further carry out the upper layer homogenization step in which the compaction shape of the road surface after the upper layer second compaction step is poor or in many cases, the second surface remover is sprayed once again.

It is desirable that the natural stone surface packed with such a process has a natural stone projection rate of not less than 50% in the wet road pavement.

Less than 50% is defined as 50% or more because there is no sign of protrusion of natural stone and it is difficult to maintain surface homogeneity.

The natural stone extrusion test is to measure the exposed condition of coarse aggregate on the surface of road pavement specimen with natural stone surface peeled off from cement mortar and cement waste easter and is expressed as the exposure rate (%) of the coarse aggregate .

(1) Testing instrument

1) container

Containers shall be made of metal or watertight wood with a bottom plate. Use a square container with a side length of 20 cm or more, with a height of at least 3 times the maximum size of the coarse aggregate used, generally 5 cm or more.

2) Table vibrator

3) Burnie Kelly Perth

4) Balance

The sensitivity of the balance is 0.02% of the measured mass.

5) Surface aggregate exposure Laura

6) Other compaction rods, rubber hammers, small shovels, etc.

(2) Test method

1) Put Roadstone mixture with unstiffened natural stone surface in the container, put 11 times of compaction rods and 120 seconds of table vibrator, finish the surface, immediately apply surface release agent, use surface aggregate exposure roller 1 The cement mortar and cement paste on the surface are divided into a car and a second car, and then cured for 24 hours. The surface of the car is washed with water and dried.

2) Draw a line of 5 cm in length and width from the surface of the dried specimen to the average and representative area, and record the total number (G0) of natural coarse aggregate within 25 cm2 by counting.

3) Among the coarse aggregates of natural stones within 25 cm 2, count the number of coarse aggregates (G1) of natural stone that are not exposed from cement mortar and cement paste with a surface of 50% or more.

4) Calculation of test result

EG = 100 - (G1 / G0 * 100)

Here, EG: coarse aggregate exposure (%)

G0: Total number of natural stone coarse aggregates within 25㎠ (pieces)

G1: Over 50% of coarse aggregates of natural stone within 25cm2. Number of coarse aggregates of natural stone not exposed from cement mortar and cement paste.

The slip resistance test shall be in accordance with the slip resistance test method of KS F 2375 road surface.

After the upper layer homogenization step, after the first curing for more than 12 hours, joints can be installed and then one of the oil-based epoxy, acrylic, and urethane can be surface-treated as a surface protective agent, if necessary.

The following test is conducted to examine the quality improvement of the road pavement constructed by the road pavement method having the natural stone surface as described above.

&Lt; Example 1 >

Example 1 is a roadway package formed of drainable low-noise package (lower layer: non-waterproof, upper layer: water-permeable), and the package thickness is T = 20 cm (lower layer: 15 cm, upper layer: 5 cm). At this time, the maximum dimension of the lower layer aggregate is 25 mm, the maximum dimension of the upper layer aggregate is 13 mm, the compression strength is 240 kg / cm 2 or more, and the slump is 0 to 5 cm.

Specifically, the lower layer, the upper layer, the primary surface releasing agent and the secondary surface releasing agent were prepared as follows.

◎ Lower layer

1. Aggregate (Crushed aggregate 75% + Natural sand 25%)

- From 25mm sieve: 97.5% through aggregate

- From 5mm sieve: 27.8% Aggregate passing through

2. Cement: Common Portland Cement

3. Water: Groundwater (drinking water level)

4. Binary table

Name of material W / C water cement Crushed aggregate
(25 mm) Natural sand
(5 mm) system Mixing ratio
(Kg / m3) 37.8 136 360 1,450 442 2,388

5. Test Results

Exam name slump
(cm) Porosity
(%) Freeze-thaw
(%) Compressive strength
(kg / cm2) Test result 0 6.9 96.0 256 standard 0-5 Less than 8 More than 80 240 or more

◎ Top layer

1. Aggregates

- From the 13mm sieve: 100% pass through

- From 5 mm sieve: 12% Aggregate passing through

2. Cement: Common Portland Cement

3. Water: Groundwater (drinking water level)

4. Admixture: Water reducing agent (based on 4% porosity)

5. Binary table

Name of material W / C water cement Crushed aggregate
(25 mm) Natural sand
(5 mm) system Mixing ratio
(Kg / m3) 35.0 112 320 1,550 152 2,134

6. Test results

Exam name slump
(mm) Porosity
(%) Freeze-thaw
(%) Compressive strength
(kg / cm2) Slip resistance
(BPN) Test result 3 18.0 96.0 230 61.0 standard 0-5 8 or more More than 80 210 or more 47 or more

◎ Primary surface release agent

Name of material water Acrylic resin
(Based on 50% solids) High dynamic range cement
(White) charcoal system Material Quantity (Kg) 550 200 50 150 50 1,000

◎ 2nd surface release agent

Name of material water Acrylic resin
(Based on 50% solids) system Material Quantity (Kg) 800 200 1,000

◎ Construction method

- Underlayer installation, compaction T = 15cm (tandem, tire)

- Immediately top layer installation T = 5cm

- Immediate surface first release agent spray: 1.0 kg per ㎡

- Combi Laura Compilation: 96% or more of optimum compaction density

- immediate surface second release agent spraying: 0.5 kg per ㎡

- Hand Roller Compaction

- Surface condition inspection by spraying third surface release agent on the surface: 0.3kg per ㎡

- First curing (24 hours)

- Joint installation (cutting 5cm in width of 5m in width, 7cm in thickness, completely cut in 20mm in width of 20m)

- Second curing (7 days)

* Strengthening of the traffic in more than 40%

* If it exceeds 70% of the required strength,

&Lt; Example 2 >

Example 2 is a pavement walkway package with a pavement thickness T = 10 cm (lower layer: 8 cm, upper layer: 2 cm). At this time, the maximum dimension of the lower layer aggregate is 25 mm, the maximum dimension of the upper aggregate is 10 mm, and the main stone (80% sulfur, 5% red, 15% black) is used. At this time, the compressive strength is 210 kg / cm 2 for the lower layer and 150 kg / cm 2 for the upper layer.

Specifically, the lower layer, the upper layer, the first surface release agent and the second surface release agent were prepared as follows, and the items not described were prepared in the same manner as in Example 1.

◎ Lower layer

1. Binary table

Name of material W / C water cement Crushed aggregate
(25 mm) Natural sand
(5 mm) system Mixing ratio
(Kg / m3) 34.8 108 310 1,550 155 2,123

2. Test results

Exam name slump
(cm) Porosity
(%) Freeze-thaw
(%) Compressive strength
(kg / cm2) Test result 2.1 19.0 96.5 228 standard 0-5 8 or more More than 80 210 or more

◎ Top layer

1. Binary table

Name of material
W / C
water
cement
(White) Keystone (25mm) AE
Water reducing agent system
Yellow Red black Mixing ratio
(Kg / m3) 38.6 108 280 1,320 83 247 1.4 2,078

2. Test results

Exam name slump
(mm) Porosity
(%) Freeze-thaw
(%) Compressive strength
(kg / cm2) Slip resistance
(BPN) Natural stone
Projection rate (%) Test result 0.5 18.7 97.5 181 51.8 90.5 standard 0-5 8 or more More than 80 150 or more 40 or more Over 50

◎ Primary surface release agent

Name of material water Acrylic resin
(Based on 50% solids) High dynamic range cement
(White) ocher system Material Quantity (Kg) 520 200 80 100 100 1,000

◎ 2nd surface release agent

◎ Construction method

- Under-floor laying, compaction T = 8cm (Combi Laura compaction)

- Immediately upper layer installation T = 2cm

- immediate surface first release agent spraying: 0.8 kg per ㎡

- Combi Laura Compilation: 96% or more of optimum compaction density

- immediate surface second release agent spraying: 0.5 kg per ㎡

- Hand Roller Compaction

- First curing (24 hours)

- Joint installation (5m wide by 5m wide, 3cm wide by 20m wide by 20mm wide

Complete cutting)

- Second curing (7 days)

* Requirement Strength is open at more than 40% of 3 days

* If it exceeds 70% of the required strength,

As can be seen from Examples 1 and 2, in the case of the pavement constructed by applying the road pavement method having the natural stone surface according to the present invention, the surface release agent for slump, porosity, freezing and thawing, compressive strength, It is possible to reduce the road noise due to the surface pores formed by the slip resistance, especially the slip resistance, and it is confirmed that all the specifications are satisfied.

Although the present invention has been described with reference to the accompanying drawings and the preferred embodiments described above, the present invention is not limited thereto but is limited by the following claims. Accordingly, those skilled in the art will appreciate that various modifications and changes may be made thereto without departing from the spirit of the following claims.

Claims

A lower layer forming step of forming a lower layer to compose the lower layer;
An upper layer laying step of laying a cement mixture including a natural stone aggregate on the lower layer;
A first surface release agent containing water, a water-soluble resin, a cement dispersant and cement is sprayed on the upper layer, and the cement on the surface of the upper layer is separated from the surface of the natural stone aggregate to expose the natural stone aggregate and the binding force of the exposed natural stone aggregate to the water- A first peeling step to reinforce the first peeling step;
An upper layer primary compacting step in which a primary surface stripping agent is sprayed and then the surface is compacted;
A second peeling step for reinforcing a bonding force of the exposed natural stone aggregate to which a second surface stripping agent mixed with water and a water-soluble resin is sprayed on the first plastered upper layer;
An upper layer secondary compaction step in which a secondary surface stripping agent is applied and then the surface is polished;
And a curing step of curing the upper layer after the upper layer second compaction step.

The method according to claim 1,
The lower layer is formed with a cement mixture of aggregate, cement and water at a compression strength of 100 to 350 kg / cm 2,
The aggregate is mixed with 1,550 to 1,900 kg / m3 of maximum compaction density using at least one of crushed stone aggregate, natural gravel, sand, cement recycled aggregate and asphalt recycled aggregate having a maximum particle size of 40 mm or less, and the cement is 220 to 450 kg / M < 3 >, and the water is mixed so that the water-cement ratio (W / C) becomes 30 to 45% such that the slump becomes 0 to 5 cm.

The method of claim 2,
The lower layer is formed to be non-water-permeable having a porosity of less than 8% in a wet state and a maximum compaction density standard of 1,650 to 1,900 kg / m < 3 > Or the aggregate passing through a 5 mm sieve of the aggregate is less than 20% by weight, the mixture has a porosity of 8% or more in a wet state, and a maximum compaction density standard of the aggregate is formed to be permeable to 1,550 to 1,850 kg / m3 Wherein the surface of the natural stone surface is covered with the surface of the natural stone.

The method of claim 2,
Wherein the cement mixture forming the lower layer is further mixed with an admixture of 2 parts by weight or less based on 100 parts by weight of the cement.

The method according to claim 1,
The upper layer is formed with a cement mixture of aggregate, cement and water at a compression strength of 100 to 350 kg / cm 2,
The aggregate is mixed with 1,550 to 1,800 kg / m3 based on the maximum compaction density by using at least one of crushed stone aggregate, gravel, color aggregate, And water to cement ratio (W / C) of 30 to 45% such that the slump is 0 to 5 cm.

The method of claim 5,
In the upper layer, when the maximum dimension of the aggregate is 10 mm or more, the aggregate passing through the 5 mm sieve is 20% or more by weight. When the maximum dimension of the aggregate is less than 10 mm, the aggregate passing through the 2 mm sieve is 10 % Or more, and the porosity of the mixture is less than 8% when wet, or when the maximum dimension of the aggregate is 10 mm or more, the aggregate passing through the 5 mm sieve is less than 20% by weight, Is less than 10% by weight, the aggregate passing through the 2 mm sieve is less than 10% by weight, and the mixture has a porosity of 8% or more in a wet state.

The method of claim 5,
Wherein the cement mixture forming the upper layer is further mixed with an admixture of 2 parts by weight or less based on 100 parts by weight of the cement.

The method according to claim 1,
Wherein the primary surface release agent comprises 100 parts by weight of a water-soluble resin selected from at least one of water-soluble epoxy, acrylic, EVA and urethane, and at least one cement dispersant selected from the group consisting of a water reducing and dispersing agent, an AE agent, To 100 parts by weight of cement, 20 to 200 parts by weight of cement, and 100 to 1000 parts by weight of water, and spraying 0.3 to 2.0 kg per m < 2 >

The method of claim 8,
Wherein the primary surface release agent is further mixed with 5 to 200 parts by weight of a radiator selected from at least one of yellow clay, elvan stone, germanium, zeolite, charcoal, activated carbon and silica sand with respect to 100 parts by weight of the water- Packaging method.

The method according to claim 1,
Wherein the secondary surface release agent is prepared by mixing 100 parts by weight of a water-soluble resin selected from at least one of water-soluble epoxy, acrylic, EVA and urethane, and 300 to 2000 parts by weight of water, A road packaging method having a surface.

The method according to claim 1,
Between the upper secondary compaction step and the curing step
Further comprising an upper layer homogenizing step of spraying the secondary surface release agent.

The method according to claim 1,
Wherein the first peeling step is performed within one hour after the upper layer laying step.