KR101061734B1 - The road paving material - Google Patents

Abstract

The present invention relates to a road pavement, and more particularly, has excellent bonding force between aggregates, such as natural gemstone, which is the main material of the road pavement, and excellent flexibility and durability, so that the occurrence of cracks due to changes in impact and temperature due to external pressure is excellent. It is easy to maintain and easy to maintain, and has excellent water permeability, so there is no fear of flooding the road. The road paver is 20 to 40 wt% of water-soluble urethane resin and 40 to 60 wt% of acrylic emulsion resin. And 100 parts by weight of the first composition consisting of 10 to 20% by weight of ionized water; 30 to 40 parts by weight of a second composition composed of 30% by weight of an emulsifier and 70% by weight of a curing agent; 10 to 25 parts by weight of water; 40 to 50 parts by weight of mortar; And 1200 to 1300 parts by weight of natural ore; wherein the first composition is characterized in that it further comprises 5 to 10% by weight of the anti-foaming agent, and 5 to 10% by weight of the cryoprotectant.

Description

Road paving material {The Road paving material}

The present invention relates to a road pavement, and more particularly, has excellent bonding force between aggregates, such as natural gemstone, which is the main material of the road pavement, and excellent flexibility and durability, so that the occurrence of cracks due to changes in impact and temperature due to external pressure is excellent. It is easy to maintain, easy to maintain, and has a high water permeability, so there is no fear of flooding the road.

Conventionally, in the case of road pavement, the cement-based material is used. However, the cement-based material according to the prior art is constructed by adding a solidifying agent and a surfactant to the cement if the ground to be constructed is viscous soil or contains organic components. However, the construction process is difficult, and there are also various limitations to compensate for the disadvantages of existing pedestrian or bicycle road construction products that are constructed using resin products, as well as their own characteristics.

For example, in the case of cement-based road pavement, cracks are generated by the heat of cement drowning and rapid drooping reaction of the solidifying agent. In order to prevent this, a crack is formed at a predetermined interval using a cutting machine to induce cracks. , But it takes a lot of time and effort and is inefficient,

In the case of ascon used in the existing pedestrian or bicycle road, the repulsive elasticity is insufficient to increase the fatigue of the foot, the walking feeling is decreased, and the adhesion is weak, so that the discoloration occurs and the appearance visibility is deteriorated. There is a problem in that the construction process is complicated, a curing period of a certain period after the installation of the product is required, and even after curing, several post-processes are required.

In the case of rubber chip elastomers, it is difficult to be installed in winter due to the room temperature curing type, and it takes a long time to open after construction in other seasons. It takes a long time, the shrinkage and expansion occurs continuously according to the temperature change, the problems such as plastic deformation (Rutting), fatigue crack (Fatigue Crack) due to the load applied to the road surface, resulting in a decrease in durability, shrinkage And there is a problem that the lifting and dropping occurs due to the expansion.

In addition, the existing cement pavement or asphalt concrete floors do not see rainwater penetrate into the ground when it rains, and rainwater washes various pollutants on the road surface and flows directly into the river without sediment filtering through the sewer. There is a problem of contamination.

Therefore, the present invention has been made to solve the above problems, to improve the bonding durability by strengthening the bonding force between the aggregates constituting the main material of the road pavement,

It can reduce the impact force applied from the outside, and improve the bonding flexibility between aggregates to prevent the occurrence of cracks due to expansion and contraction caused by external temperature changes,

Improves water permeability to the ground to prevent flooding of roads in rainy weather, to prevent contaminants from entering the river directly,

In addition, by simplifying the construction process according to the road pavement to shorten the construction period according to the road pavement, it is possible to enhance the appearance and aesthetics of the road surface.

Road pavement according to the present invention, 20 to 40% by weight of the water-soluble urethane resin, 40 to 60% by weight of the acrylic emulsion resin, and 100 parts by weight of the first composition consisting of 10 to 20% by weight of ionized water; 30 to 40 parts by weight of a second composition composed of 30% by weight of an emulsifier and 70% by weight of a curing agent; 10 to 25 parts by weight of water; 40 to 50 parts by weight of mortar; And 1200 to 1300 parts by weight of natural ore.

Preferably, the first composition may further comprise 5 to 10% by weight of the anti-foaming agent, and 5 to 10% by weight of the cryoprotectant, and the emulsifier of the second composition may include phenol glycosides or polyalkyrenes. Are each formed by mixing 1: 1 parts by weight, or may be formed of either polyoxyethylene or sodium oleate as a material, and more preferably, the curing agent of the second composition is based on an aliphatic amine material. Can be formed.

In addition, the method for paving the road using the road paving material according to the present invention, the moto crushing step of crushing the motto of the road to the road paving; A pavement material applying step of applying the pavement material according to the present invention to the road surface on which the motto is crushed; A compaction step of compacting the motto and the road pavement material applied in the packaging material applying step; And a curing step of naturally drying for a predetermined time until the road pavement material is completely cured after the compaction step. Preferably, in the moto-crushing step, after the moto is crushed, the A first application step of applying the first composition of the road pavement according to the present invention on the surface of the road motto is crushed; may further include.

The road pavement according to the present invention and the road pavement method using the same, by mixing the water-soluble urethane resin and acrylic emulsion resin so as to penetrate well into the natural gemstone particles forming the main material of the road pavement, thereby solidifying the binding force between the natural gemstone fine binding durability By using water-soluble urethane resin as a binder, it can absorb and mitigate the impact force applied to the road surface from the outside, and improve the bonding flexibility between aggregates to prevent the occurrence of cracks due to expansion and contraction caused by external temperature changes. In addition, by improving the water permeability to the ground through the pores between the natural gemstone fine particles to prevent the flooding of the road in rainy weather, to prevent the inflow of pollutants directly into the river, and the construction process according to the pavement is easy Can shorten the construction period according to the pavement, Yeonwonseok fine particles are expressed as the road surface and the road surface must be elegant appearance as well as, provides an environmentally friendly road keeping with the surrounding environment.

1A is a schematic cross-sectional view of a road pavement according to the present invention.
FIG. 1B is a schematic cross-sectional view showing a deformation state when a small impact is applied to the road pavement material of FIG. 1A.
FIG. 1C is a schematic cross-sectional view showing a deformation state when a strong impact is applied to the road pavement material of FIG. 1A.
FIG. 1D is a schematic cross-sectional view illustrating a deformation state when water included in the road pavement of FIG. 1A is frozen.
2 is a construction flowchart showing a method of paving a road using a road paving material according to the present invention.
Figure 3a is a construction state diagram showing the motto grinding step (S110) of the road paving method using the road paving material according to the present invention.
Figure 3b is a construction state showing the paving material applying step (S120) of the road paving method using the road paving material according to the present invention.
Figure 3c is a construction state showing the compaction step (S130) of the road paving method using the road paving material according to the present invention.
Figure 3d is a construction state showing the first application step (S140) of the road paving method using the road paving material according to the present invention.
4 is a cross-sectional view showing a road surface constructed through a road paving method using a road paving material according to the present invention.
5 is a cross-sectional photograph of a road pavement according to an embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, embodiments of the present invention in which the above object can be specifically realized are described with reference to the accompanying drawings. In describing the embodiments, the same names and symbols are used for the same components, and additional description thereof will be omitted below.

In general, the acrylic resin has the advantage of excellent mixing and adhesion with the mortar or aggregate, while the lack of whitening and shock absorption.

On the other hand, the water-soluble urethane resin does not occur whitening and has the advantages of good adhesion, water resistance and shock absorption, while having a disadvantage in that it is difficult to use with cement mortar because of poor mixing with cement mortar.

Therefore, the road pavement according to the present invention is configured to supplement the disadvantages of the acrylic resin and the urethane resin, and make use of the advantages 20 to 40% by weight of water-soluble urethane resin, 40 to 60% by weight of acrylic emulsion resin and 10 to 20% by weight of ionized water 30 to 40 parts by weight of the second composition composed of 30% by weight of an emulsifier and 70% by weight of a curing agent based on 100 parts by weight of the first composition consisting of; 10 to 25 parts by weight of water; 40 to 50 parts by weight of mortar; And natural ore 1200 to 1300 parts by weight; configured to solve the above problems.

In the road pavement of the present invention, the first composition serves as an adhesive for strengthening the binding force between the materials of the road pavement, the second composition is a good mixture of the natural ore and the first composition forming the main material of the road pavement The first composition is to serve as an auxiliary composition, which can be well absorbed into the natural ore.

Preferably, in order to suppress bubbles generated during the mixing process of the water-soluble urethane resin, the acrylic emulsion resin and the ionized water constituting the first composition, and to prevent shrinkage due to freezing at a temperature drop such as winter, 5 to 5 10% by weight and 5 to 10% by weight of the cryoprotectant can be mixed together.

In the second composition, the emulsifier allows the first composition to penetrate well into the natural ore and the like, with sufficient mixing between the materials forming the road pavement, and improves the cohesion with the motto on which the pavement is to be paved. Although it is used, the emulsifier is preferably formed by mixing 1: 1 parts by weight of phenolglycoside or polyalkyrene, or forming either polyoxyethylene or sodium oleate as a material.

In addition, in the second composition, the curing agent, soaking into the interior of the natural ore, etc. constituting the main material of the road pavement, so that the coated first composition on the outer surface can be cured quickly, durability and strength of the road pavement Although it is used for improvement, it is preferable to form an aliphatic amine system as a said hardening | curing agent.

The mortar is used to improve the bonding between the road pavement and the lower ground, to increase the bonding force between the natural ores, and the durability and strength of the road pavement, to mix 40 to 50 parts by weight based on 100 parts by weight of the first composition Preferably, less than 40 parts by weight, the coupling force between the road pavement and the lower ground is weakened, the lifting phenomenon occurs, if more than 50 parts by weight has a disadvantage of worsening the permeability of the road surface.

The natural ore, which constitutes the main material of the road pavement, undergoes a stirring process for a predetermined time so that the mixture can be mixed well with the mixture of the first composition and the second composition before the road pavement construction. The first composition and the second composition penetrate into the interior of the natural ore and coat the outer surface, thereby improving durability, strength, and impact absorption of the natural ore.

The natural ore is a road construction is completed, as shown in Figure 5, the natural ore shape is expressed on the road surface as it is, the appearance is beautiful, and serves to improve the surrounding aesthetics, and natural ore is cement Unlike mortar, its relatively large size allows high water permeability to prevent flooding of roads during rainy weather and to prevent the inflow of pollutants directly into rivers. The natural ore is preferably mixed at 1200 to 1300 parts by weight with respect to 100 parts by weight of the first composition, when less than 1200 parts by weight, the permeability of the road is reduced, and when it exceeds 1300 parts by weight, the bonding force between the natural ores This weakens the disadvantage that the durability and strength is weakened.

Hereinafter, the deformation characteristics of the road pavement material according to the present invention will be described in detail with reference to FIGS. 1A to 1D.

Referring first to FIG. 1A, FIG. 1A shows a schematic cross-sectional view of a road pavement in accordance with the present invention. The road paving material is formed between the natural ores 10 with the intermediate material 30 including the first composition and the second composition interposed therebetween. As described above, the natural ore 10 is pulverized to have a predetermined particle size, and a plurality of pores 40 are formed between the natural ores 10. The size of these voids 40 affects the permeability of the road pavement. Therefore, larger natural ores 10 can be used where high permeability is required.

On the other hand, the intermediary material 30 that is interposed between the natural ore (10) is coupled to each other between the natural ore (10) needs an appropriate viscosity and elasticity. Specifically, if the viscosity of the medium 30 is too large, it is difficult to uniformly mix with the natural ore 10, if the viscosity is too low easily flows down to the lower portion of the natural ore 10, the natural ore 10 of the upper portion Cannot be firmly combined. Therefore, in order to properly increase permeability and binding property, the viscosity of the medium 10 must be properly adjusted.

Next, referring to FIG. 1B, FIG. 1B is a schematic cross-sectional view showing a deformation state when a small impact is applied to the road pavement material of FIG. 1A. The natural ore 10 has a high hardness and does not cause deformation when an impact is applied, and propagates the impact to the surrounding natural ore 10 as it is. Therefore, when a small impact is applied to the road pavement, the amount of impact absorbed while the medium material 10 is deformed is insignificant, and mostly propagates through the natural ore 10. Thus, by using the natural ore 10 in the road paving material, it is possible to maintain the appropriate hardness, can be used not only for pedestrian and bicycle roads, but also for automobile roads. However, road pavement is not damaged even when a strong impact is applied to the pavement.

Subsequently, referring to FIG. 1C, FIG. 1C is a schematic cross-sectional view showing a deformation state when a strong impact is applied to the road pavement material of FIG. 1A. When a strong impact is applied to the road pavement above the reference value, the natural ore 10 is not deformed, but the intermediate material 30 coupled between the natural ores 10 has elasticity, so that the deformation is in the direction of receiving force. Is done. That is, the medium 30 absorbs the impact applied to the road pavement, thereby preventing the natural ore 10 from being broken and preventing the crack from occurring in the pavement. If the elastic modulus of the intermediate material 30 is too large, the deformation of the road pavement is too severe to be suitable for the movement of a heavy vehicle. If the elastic modulus is too small, cracks may easily occur in an external impact to maintain an appropriate elastic modulus. As described above, in order for the intermediate material 30 to have appropriate viscosity and elasticity, the component ratio of the first composition and the second composition must be maintained.

Next, referring to FIG. 1D, FIG. 1D is a schematic cross-sectional view illustrating a deformation state when water contained in the road pavement of FIG. 1A is frozen. A plurality of pores 40 exist between the natural ores 10 of the road pavement and the pores 40 may have moisture absorbed from the ground. When the water temperature is lowered, such moisture is frozen to form the ice (50), the ice 50 is expanded in volume to stress the pavement. At this time, the intermediate 30 between the natural ore 10 is stored to store the stress generated when the water is frozen while being stretched. Therefore, the crack of the road pavement material can be prevented. As described above, in order for the intermediate material 30 to have elasticity at low temperature, the component ratio of the first composition and the second composition must be maintained.

The road pavement method using the road pavement configured as described above, as shown in FIG. 2, largely moto crushing step (S110), pavement coating step (S120), compaction step (S130), and curing step (S140). It consists of steps.

The moto-crushing step, as shown in Figure 3a, is a step of grinding the motto of the road surface to be paved road. After crushing the moto in this way, before performing the coating step to be described later, the crushed moto is flattened by a roller or the like (not shown in the figure).

Preferably, as shown in Figure 3d, after the moto crushing step in the crushing step, the motto and the road paving material by performing a first coating step for applying the first composition on the road surface crushed Strengthen the binding force of the road to prevent the lifting of the road pavement.

The paving material coating step, a road agitator composed of 100 parts by weight of the first composition, 30 to 40 parts by weight of the second composition, 10 to 25 parts by weight of water, 40 to 50 parts by weight of mortar, and 1200 to 1300 parts by weight of natural ore After sufficiently stirring through, as shown in Figure 2b, it is evenly applied to the road surface using a spray vehicle.

The compacting step is a step of compacting the pavement and motto applied in the paving material applying step, as shown in Figure 3c, to compact the road using a vibrating roller.

The curing step is a step of naturally drying for a predetermined time until the road pavement is completely cured after the compacting step. Preferably, it can be cured while spraying to prevent rapid evaporation of moisture of the motto, which can be applied in different environments depending on temperature and humidity. The road pavement finished up to the curing step is shaped as shown in FIG.

[ Example ]

First, the motto of the road surface to be pavement was ground, and the first composition 100 composed of 30% by weight of water-soluble urethane resin, 50% by weight of acrylic emulsion resin, 10% by weight of ionized water, 5% by weight of anti-foaming agent, and 5% by weight of cryoprotectant. 40 parts by weight of the second composition composed of 30% by weight of the phenolside polyalkyrene component and 70% by weight of the aliphatic amine curing agent, 10 parts by weight of water, 45 parts by weight of mortar, and 1200 parts by weight of natural ore To prepare a road pavement material of the present invention.

On the other hand, the road paving equipment is applied to the road surface on which the motto is crushed, and the road paving material is applied by using a compaction vehicle, and after the compaction step, the road paving material is naturally dried for 2 days. The Environmental Testing Institute conducted strength, abrasion resistance, slip resistance test, compressive strength, hazard test and non-volatile test. The test results are shown in the following table.

Test Result 1. Adhesion Strength Test Items unit division result Test Methods
Adhesion strength
(After ratification)
N / Cm2
1 time 257
KS F4921
: 2006
Episode 2 260 3rd time 248

As a result of the adhesion test, the road pavement material of the present invention can be easily attached to the ground firmly without peeling phenomenon or lifting phenomenon to the reference value 120 or more of the material for road coating construction work.

Test Result 2. Wear Resistance Test Items unit division result Test Methods
Wear resistance
CS17 wheel,
1000g weight,
1000cycls

mg
1 time
28


ASTM D4060
: 2007

Episode 2

27

As a result of the wear resistance test results, the road pavement material of the present invention can be seen that the wear resistance is less than 200mg of the coating material type road construction material reference value.

Test Result 3. Slip Resistance Test (BPT) Test Items unit division result Test Methods

Migratory resistance test
(BPT)

BPN
1 time
63


ASTM E303
: 2008

Episode 2

64

As a result of the slip resistance test, the road pavement material of the present invention has a friction coefficient according to the standards of Chapter 11 Safety Facilities and Chapter 15 of Construction Standards of Ministry of Land, Transport and Maritime Affairs. As a large section, it can be seen that the main highway or exclusive road commercial vehicle traffic is higher than the standard value of 32 ~ 57 BPN according to the road risk corresponding to the general road of 250 vehicles or more.

Test Result 4. Compressive Strength Test Items unit division result Test Methods

Compressive strength
(24 hours of age)

minute
1 time
25


ASTM C109
Episode 2

26

As a result of the compressive strength test, the road pavement material of the present invention can be seen that the compressive strength is higher than the reference value 20 by the standards of Chapter 11 safety facilities construction and Chapter 15 construction standards of the Ministry of Land, Transport and Maritime Affairs.

Test Result 5. Hazard Test Test Items unit division result Test Methods

Heavy metal inspection
(Lead, cadmium,
Mercury, chrome)

mg / Kg
1 time
Not detected


KSM ISO3856 ~ 7
: 2007

Episode 2

Not detected

As a result of the hazard test it can be seen that the road pavement material of the present invention is not harmful.

Test result 6. Non-volatile inspection Test Items unit division result Test Methods

Nonvolatile matter

%
1 time
70


KSM ISO3251
: 2007
Episode 2

71

As a result of the non-volatile content inspection it can be seen that the road pavement material of the present invention is nonvolatile.

As such, the road pavement material according to the present invention does not contain harmful components and can be applied to children's protection zones, bus lanes, bus stops, parks, roads in apartment complexes, and the like. In addition, it also increases visibility and prevents accidents.

It is to be understood by those skilled in the art that the present invention may be embodied in many other forms without departing from the spirit and scope of the invention,

Accordingly, the above-described embodiments should be considered as illustrative and not restrictive, and all embodiments within the scope of the appended claims and their equivalents are included within the scope of the present invention.

1: road paver 10: natural ore
20: ground 30: media
S110: Moto grinding step S120: Packing material application step
S130: compaction step S140: curing step
S150: First Application Stage

Claims (6)

100 parts by weight of a first composition composed of 20 to 40% by weight of a water-soluble urethane resin, 40 to 60% by weight of an acrylic emulsion resin, and 10 to 20% by weight of ionized water;
30 to 40 parts by weight of a second composition composed of 30% by weight of an emulsifier and 70% by weight of a curing agent;
10 to 25 parts by weight of water; 40 to 50 parts by weight of mortar; And
1200 to 1300 parts by weight of natural ore; consisting of,
The first composition is a pavement, characterized in that it further comprises 5 to 10% by weight of the anti-foaming agent, and 5 to 10% by weight of the cryoprotectant. delete delete delete delete delete

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