KR101079727B1 - Grooving structural body and the spatial-temporal method of asphalt pavement - Google Patents

Abstract

The present invention relates to an anti-depressing grooving structure and a construction method of an asphalt pavement, the grooving construction method comprising the steps of cleaning and drying the pavement surface of the road to be worked; Forming grooves on the pavement surface; Applying a primer to a pavement surface including the groove; Applying and curing the Zion Pigment whose color changes with temperature on the primer; And filling the groove-based paint having a high brightness function in the groove. According to the grooving structure and the construction method of the asphalt pavement according to the present invention, the durability can be improved to minimize the damage to the road surface, there is an effect that can significantly reduce the maintenance and management costs.

Asphalt, Road, Pavement, Groove, Primer, Zion Pigment, Paint

Description

GROOVING STRUCTURAL BODY AND THE SPATIAL-TEMPORAL METHOD OF ASPHALT PAVEMENT}

The present invention relates to a grooving structure on an asphalt pavement and a construction method thereof, and more particularly, to a grooving structure on an asphalt pavement that can not only prevent the depression of the groove, but also improve visibility of the groove. And a construction method thereof.

In general, it is not necessary to use a special anti-slip mixture if it is a heat mixture with sufficient mixing design and construction in consideration of the materials used, but it is not necessary to use a special anti-slip mixture, but it is necessary to use an emergency slope section, a curved section, an intersection point of a slope section, a misalignment section, a front section of a pedestrian crossing with many pedestrians, etc. In places requiring the same attention and in places where severe slippage is expected, such as a snowy cold region, it is necessary to take measures against slippage.

As a pavement method of increasing the sliding resistance, there is a method of increasing the sliding resistance of the mixture itself, a method of spraying or adhering hard aggregate on the road surface, and a method of roughening the surface by grooving.

The method of increasing the sliding resistance of the mixture itself is a method of using modified asphalt to increase the durability of the road surface, or using an open or modified asphalt mixture to secure the roughness of the road surface, and to harden all or part of the aggregate. There is a method using the aggregate, which is a mixed aggregate of Topeka, using a strong aggregate and a soft aggregate mixed with a strong aggregate after a certain period of time to exhibit an anti-slip effect. This is to prevent the slip by using the protruding fine aggregate, vibration and noise occurs when driving the vehicle due to the protruding fine aggregate is not suitable as a road paving method for high speed driving.

The method of spraying or adhering hard aggregate on the road surface generally uses a particle diameter in the range of 1.0 to 3.3 mm on the surface of the mixture immediately after installation, or a method of applying voltage by spraying 5 mm hard aggregate, or as a binder. There is a knit method to bond by using. This method has a structural problem of having a lower anti-slip effect than the method of increasing the slip resistance of the mixture itself.

The grooving method is an SM method that is a concrete pavement or a mixture of emulsified asphalt and crushed stone to increase the sliding resistance and drainage ability of the pavement to prevent hydroplaning when water film is formed on the road surface. In order to prevent sliding accidents, grooves are made on the pavement surface, also called safety equipment installation space.

This grooving method is applied to prevent slipping, water film phenomenon, and slip prevention by improving drainage, preventing ice freezing, improving driving safety, and reducing noise.In fact, according to the Korea Transport Institute, road departure accidents after installing grooves It is reported to have decreased by about 38%.

1 shows a cross-sectional view of a road on which a general grooving method is constructed.

As shown, the grooves of the pavement are divided into texturing and grooving according to the width of the pavement unit spacing. The width of the unit pattern from the center of the valley to the center of the next valley ( The length of W) is more than 1.7 mm in grooving, and smaller cases are classified as texturing.

When the grooving is classified by pattern, the grooving is divided into a longitudinal grooving which forms a groove horizontally with a driving direction of a vehicle or an aircraft, and a lateral grooving that cuts perpendicularly to the traveling direction.

Longitudinal grooves for longitudinal grooving are suitable for curves, slopes, straight roads and overpasses that are susceptible to side winds, which increase the grip of tires and stabilize steering during cornering, and are resistant to side winds on straight roads. Prevent accidents.

The horizontal groove of the lateral grooving is applied to prevent drowsy driving by warning sound and vibration transmitted from the tire when driving, and to reduce the warning, and to reduce the braking distance at the entrance section of intersection, pedestrian crossing, toll station, and wet road surface in rainy weather. can do.

Lateral grooving is applied for the purpose of deceleration warning effect by shortening the braking distance, generating intentional driving noise and vibration, and applying it to the flat section of the section where the drainage is weak and the freezing section is frequently freezing in winter. .

Up to now, only lateral grooving has been applied in Korea to shorten braking distance, but curved longitudinal grooving method has excellent effects in driver's facility inducing effect and visibility, noise reduction, driving convenience and driving traction. It is widely applied to sections, slope sections, tunnel sections, etc., greatly contributing to the reduction of traffic accidents.

In this grooving method, various additional methods have been proposed in order to increase friction and meet expected effects.

For example, the 'dust-proof coating grooving method of the road surface' of Korean Patent Publication No. 10-2005-0047225 and the 'groove construction method of the road for children's protected area' of Patent No. 10-681878 are known.

In the former case, in the road surface forming method in which grooving is applied to the pavement surface, a groove coating step of applying a coating coating to the groove formed through the grooving step is included. This method, as shown in Fig. 2, is to form a groove and then apply a resin coating to the surface on which the groove is subsequently formed in order to promote road surface friction.

In this construction method, as shown in FIG. 2, the phenomenon that the grooves 2 formed by the grooves are filled with the resin 1 by the resin 1 applied after the grooving construction occurs, thereby preventing slippage and visibility. Difficult to secure, there is a problem that the drainage effect is also reduced.

In the latter case, in the road grooving method of forming a plurality of continuous grooves on the pavement surface, a road cleaning step of removing foreign matter from the road and a series of distinctive colors distinguished from the general road surface on a completely dried road surface The paint layer forming step of applying the paint on the surface of the road surface, while cutting the continuous groove in a direction perpendicular to the driving direction of the road on which the paint layer is formed to absorb the dust generated at the same time, but the depth and width of the groove And a series of steps for forming the grooves having a depth of about 4 to 5 mm, a width of about 9 mm, and an adjacent groove of about 50 mm so that the ratio of adjacent grooves is about 1: 2: 10. Characterized in that consists of.

This construction method prevents grooves from clogging as in the above example by forming a paint layer on the road surface and then forming a groove. However, since the grooved structure has a certain groove formed at regular intervals from the road surface, there is a structural problem that the durability of the grooved structure is weakened and the buffering function cannot be exerted. There were limitations that could not improve the durability of the grooving structure or improve the cushioning function and tension.

The present invention is to solve the above problems, it is an object of the present invention to provide a grooving structure and construction method of the asphalt pavement road can be improved durability to minimize road damage.

Another object of the present invention is to provide a grooving structure on an asphalt pavement and a method of constructing the same, which can improve the cushioning function and tension to increase the road traction of a tire.

Still another object of the present invention is to provide a grooving structure on an asphalt pavement and a construction method thereof for enhancing visibility.

According to a feature of the present invention for achieving the object as described above, the first invention relates to a method of constructing a grooving prevention of asphalt pavement, cleaning and drying the pavement surface of the work target road; Forming grooves on the pavement surface; Applying a primer to a pavement surface including the groove; Applying and curing the Zion Pigment whose color changes with temperature on the primer; And filling the lane paint having a high brightness function in the groove, wherein the lane paint is filled with 1/3 to 1/2 the height of the groove. .

delete

According to a third aspect of the present invention, in the groove forming step, a plurality of grooves are formed in parallel along the longitudinal or transverse direction of the road.

According to a fourth aspect of the present invention, in the step of applying the Zion Pigment, the Zion Pigment is applied only to the pavement surface except for the groove.

The fifth invention relates to an anti-grooving grooving structure of an asphalt pavement, and is characterized in that it is produced by the construction method of any one of the first to fourth inventions.

According to the grooving structure and the construction method of the asphalt pavement according to the present invention, the durability can be improved to minimize the damage to the road surface, there is an effect that can significantly reduce the maintenance and management costs. That is, in the present invention, by filling the lane paint in the groove, as the lane paint cures, the groove is supported to reduce the lateral force on the groove applied from the vehicle, thereby preventing the depression of the pavement due to the breakage of the groove. have.

And according to the present invention, it is possible to increase the road traction of the tire by improving the cushioning function and tension, there is an advantage that can improve the function of the grooving structure. That is, according to the present invention, it is possible to increase the grip of the tire to exhibit high slip resistance, so that, for example, when the wet road surface runs at a speed of 50 km / h, the braking distance can be shortened by 30 to 40%.

In addition, according to the present invention, there is an advantage that it is possible to enhance the visibility and safe driving day and night. In particular, the lane paint filled in the groove has a high brightness function, so that when the vehicle approaches the groove at night, the headlight of the vehicle is reflected by the lane paint, so that the driver can recognize the presence of the groove in advance. Can help you to drive safely.

Hereinafter, the grooving structure of the asphalt pavement and its construction method according to the present invention will be described with reference to the accompanying drawings.

Figure 3 is a flow chart illustrating a grooving construction method of the asphalt pavement according to the present invention, Figure 4 is a perspective view showing a grooving structure according to the present invention, Figure 5 is taken along line AA 'of Figure 4 6 is a cross-sectional view for explaining the operation of the grooving structure according to the present invention.

As shown, the grooving construction method according to the present invention starts from the step of cleaning the pavement road surface of the work target road (10). At this time, the cleaning is to remove foreign matters such as dust from the road surface of the work target road 10. When cleaning using liquid such as water, the road surface of the road 10 must be completely dried in order to perform the next step. do.

Here, the place where the grooving construction is required is selected for the non-slip, the curve road departure accident prevention, the freezing prevention, the water film phenomenon prevention, the deceleration warning section, the accident bundle section and the accident occurrence section. However, since the grooving method for the asphalt pavement is formed in such a way that part of the existing pavement surface is removed, the characteristics of the pavement material and the corresponding section can be applied to the section where the condition of the pavement is in good condition without deteriorating flatness or cracking. The load applied by the vehicle, etc., and the driving characteristics of the vehicle passing through the corresponding section should be taken into consideration comprehensively and applied to the section without fear of plastic deformation (step S10).

When the cleaning step for the pavement road surface of the road 10 is finished, a groove 20 is formed on the pavement road surface. At this time, the groove 20 is formed in plurality in parallel along the transverse direction or longitudinal direction of the road (10). The lateral grooving means forming the groove 20 on the pavement road surface horizontally with the driving direction of the vehicle or the aircraft, and the longitudinal grooving means forming the groove perpendicularly to the traveling direction.

Whether the groove 20 is formed in the transverse direction or the longitudinal direction on the road 10 is determined according to the purpose of the groove 20 formation. That is, the lateral grooving shortens the braking distance, generates intentional driving noise and vibration, and is mainly used for entrance sections of intersections, crosswalks, toll gates, and the like for deceleration warning purposes. On the other hand, longitudinal grooving is mainly for curves, slopes, straight roads, overpasses, etc. for the purpose of improving the driver's gaze-inducing effect and visual recognition, noise reduction, driving convenience, and driving traction. Used.

In the process of forming the grooves 20, a part of the pavement 10 is cut and cutting dust is generated. Such cutting dust is collected by a dust collecting apparatus or the like, which is commonly used, and the road 10 including the grooves 20. ) Clean the road surface of the pavement (step S20).

The primer 30 is applied to the pavement road surface including the grooves 20 formed as described above. The primer 30 has good adhesion with an asphalt pavement surface or aggregate, and can be uniformly coated with rubber, iron leggings, and the like, and has a viscosity, abrasion resistance, impact resistance, durability, water resistance, oil resistance, and the like. Good chemical resistance. In addition, the primer 30 has a high elasticity to adapt to the deformation and climatic conditions of the asphalt, the curing time should be secured for at least 2 hours during natural curing at an ambient temperature of 6 ℃ or more.

The coating thickness of the primer 30 is not particularly limited, but is preferably about 2 to 3 mm.

In addition, since the primer 30 is used for fixing and extending the life of the lane paint 50 to be described below in the groove 20, the primer 30 may be applied only in the groove 20. However, when the primer 30 is applied only in the groove 20, the workability may be reduced and the working time may be extended. In this embodiment, the primer 30 may be applied to the entire pavement surface of the road 10 including the groove 20. 30) is described as applying. Therefore, if workability and work time are not considered, the case where the primer 30 is applied only in the groove 20 should also be interpreted as being included in the scope of the present invention (step S30).

Next, the Zion pigment 40 is applied on the primer 30. At this time, the primer 30 is applied to the pavement surface including the groove 20, the primer 30 in the groove 20 serves to fix the lane paint 50, the Zion pigment 40 Is preferably applied only to the pavement road surface of the road 10, except the groove (20).

Zion pigment 40 is a reversible one is used, such as gold complex salt, cholesteric liquid crystal, meta-mo color that can change color depending on the temperature. The Zion Pigment 40 basically exhibits a characteristic color below the reference temperature (-15 ° C. to 70 ° C.) and becomes transparent above the reference temperature. The temperature difference between day and night and humidity of road surface during freezing By changing the color according to the temperature and temperature, to inform the driver of the road conditions according to the weather conditions to contribute to the safe operation.

The coating thickness of the Zion pigment 40 is not particularly limited, but is preferably about 2 to 3 mm (step S40).

After the Zion pigment 40 is applied and completely cured, the groove 20 is filled with the lane coating 50. At this time, the lane coating 50 has a high brightness function, it can be selected from the photoluminescent paint, luminous paint or retroreflective paint. In particular, retroreflective paint is applied to paint the lines such as road markings at night so that the lines and the like can be easily seen at night, and the glass balls of diameter 1mm and up are sprayed so that 1/2 to 2/3 are submerged in the paint. When you illuminate the car's headlights, the light is reflected and the driver sees a bright line.

Filling the grooves 20 with the lane paint 50 is to help the driver to drive safely by allowing the driver to recognize the presence of the grooves 20 formed on the pavement road surface at night. In particular, as shown in FIG. 5, the lane coating 50 is filled from the traffic of the vehicle by filling the lane coating 50 at a height of approximately 1 / 3H to 1 / 2H with respect to the height H of the groove 20. In addition to preventing abrasion, the groove 20 may be recognized in advance when the vehicle approaches the groove 20 by a predetermined distance (L).

In addition, since the lane paint 50 is filled in the groove 20, the lane paint 50 may be hardened to support the groove 20 against the lateral force applied to the groove 20 from the vehicle. Therefore, the phenomenon that the groove 20 is pushed or crushed according to the traffic of the vehicle can be reduced.

At this time, since the height of filling the lane paint 50 to the groove 20 is for the driver's visibility before reaching the groove 20, if the depth of the groove 20 is a little deeper, the lane paint 50 The amount of filling in groove 20 may be increased accordingly.

When the lane paint 50 is filled in the groove 20, the lane paint 50 may be cured, and after the curing is completed, the traffic of the work target road 10 may be opened to enable traffic of the vehicle.

The grooving construction method according to the present invention is carried out through the above steps, and the grooving structure according to the present invention is manufactured through the construction method.

In addition, in this embodiment, it is described that the Zion pigment is applied after applying the primer, but this is to increase the visibility of the Zion pigment. If a transparent primer is used, it is also possible to apply the primer after applying the Zion pigment. .

The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

1 is a cross-sectional view of an asphalt pavement showing a general grooving construction state,

Figure 2 is a cross-sectional view of the asphalt pavement showing the grooving construction state according to the prior art,

3 is a flow chart illustrating a grooving construction method of an asphalt pavement according to the present invention;

4 is a perspective view showing a grooving structure according to the present invention;

5 is a cross-sectional view taken along the line AA ′ of FIG. 4;

6 is a cross-sectional view for explaining the operation of the grooving structure according to the present invention.

Claims (5)

Cleaning and drying the pavement road surface of the work target road; Forming grooves on the pavement surface; Applying a primer to a pavement surface including the groove; Applying and curing the Zion Pigment whose color changes with temperature on the primer; And And filling the groove coating material having a high brightness function into the groove. In the filling of the lane paint, the method of preventing depression grooving on the asphalt pavement, characterized in that for filling the lane paint 1/3 to 1/2 the height of the groove. delete The method of claim 1, In the groove forming step, the depression prevention grooving construction method of the pavement road, characterized in that to form a plurality of grooves in parallel along the longitudinal or transverse direction of the road. The method of claim 3, In the step of applying the Zion pigment, the depression prevention grooving construction method of the asphalt pavement, characterized in that the coating on the pavement road surface except the groove. An anti-grooving grooving structure for an asphalt pavement, characterized in that it is produced by the construction method of claim 1, 3 or 4.

Images