KR20080111248A - Repair method for asphalt pavemnet - Google Patents

Abstract

The present invention is a repair material spraying step of spraying the MMA resin on the surface of the asphalt pavement; By presenting a repair method of the asphalt pavement, characterized in that it comprises a; repairing material curing step of curing the MMA resin, it is possible to efficiently repair the asphalt pavement by the cost and time required.

Description

REPAIR METHOD FOR ASPHALT PAVEMNET

1 is a cross-sectional view of a conventional asphalt pavement.

Figure 2 is a cross-sectional view of the asphalt pavement applied to one embodiment of the repair method according to the present invention.

** Description of the symbols for the main parts of the drawings **

10: surface 20: substrate

30: auxiliary base layer 100: film

The present invention relates to the field of civil engineering, and more particularly, to a method for repairing a pavement forming an asphalt road.

As shown in FIG. 1, a general asphalt pavement takes a layered structure by a surface layer 10, a base layer 20, and an auxiliary base layer 30.

Among them, an asphalt mixture in which asphalt and aggregate are mixed is used as a material constituting the surface layer 10 of the asphalt pavement, and the mixing ratio of the asphalt binder and the aggregate is determined so that the usual porosity is about 4%.

However, due to the lack of quality control in the process of construction in the field, when the asphalt content is insufficient, the fine aggregate and stone content is insufficient, such as the lack of compaction frequently occurs.

This causes a premature failure such as a phenomenon in which the aggregate detaches from the pavement, cracks due to infiltration of moisture, and port holes due to traffic load acting on the surface of the asphalt pavement.

In the case where such damage occurs, a conventional repair method has not been developed in the past, so it was common to cut off the existing surface material and repack it.

However, such a conventional repair method has been pointed out as a problem in that a large cost is consumed and a long time is required for construction, causing inconvenience to the user, and a large social cost loss.

The present invention has been made to solve the above problems, the object of the present invention is to propose a repair method that can efficiently repair the asphalt pavement by the cost and time required.

The present invention is a water repellent spraying step of spraying the MMA resin on the surface of the asphalt pavement, in order to achieve the object as described above; It proposes a repair method of the asphalt pavement, characterized in that it comprises a; repairing material curing step of curing the MMA resin.

It is preferable that the said MMA resin is a reactive resin which passed the polymerization reaction process.

It is preferable that the said MMA resin is 900-1100 Mpa * s in the viscosity in 20 degreeC.

The surface cleaning step of removing foreign matter and damaged pavement existing on the surface of the asphalt pavement, prior to the repairing material spraying step;

The surface cleaning step is preferably performed by injecting a high pressure air.

It is preferable to further include; an adhesive applying step of applying an adhesive to the surface of the asphalt pavement, before the repairing material spraying step.

It is preferable that the said adhesive is MMA resin or an epoxy resin adhesive.

It is preferable that the asphalt pavement is a drainage pavement.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIG. 2.

Repairing method of the asphalt pavement according to the present invention is basically, the spraying material for spraying the MMA resin on the surface of the asphalt pavement; It is configured to include; a repair material curing step of curing the MMA resin.

Here, MMA (Methyl Methacrylate) resin is a kind of synthetic resin, which has excellent bonding strength with asphalt mixture, can be completely cured within 1 hour, and has excellent physical properties such as durability, chemical resistance, abrasion resistance, and UV stability. There is a characteristic that it effectively suppresses scattering of rain and penetration of rainwater.

The present invention is a repair method of an asphalt pavement using MMA resin of a material having such characteristics, by spraying and curing the MMA resin on the surface of the damaged asphalt pavement, the hard film 100 on the surface of the asphalt pavement It is a main feature to form.

That is, the MMA resin sprayed on the surface of the asphalt pavement fills the surface voids and cracks, and forms a solid coating 100, thereby improving the wear resistance of the asphalt pavement and suppressing the scattering of aggregates. It is effective in suppressing premature breakage and extending service life.

In the case of the conventional repair method, since the surface material of the damaged asphalt pavement should be cut off and a new pavement should be constructed, there is a problem that it takes a lot of cost and time.

On the other hand, in the case of the repair method according to the present invention, only the MMA resin can be sprayed on the surface of the asphalt pavement and the pavement can be provided to the public after a short time of hardening, so that the cost and time can be shortened. It is possible to realize the opening of traffic, so that the loss of social cost can be minimized.

As a result of the experiment, it is preferable that the MMA resin used for the repair method according to the present invention is a reactive resin which has undergone a polymerization reaction, and that the viscosity at 20 ° C. is 900 to 1100 MPa · s having the most excellent physical properties.

In order for MMA resin to be more firmly attached to the surface of the asphalt pavement, the surface cleaning step of removing foreign matter and damaged pavement existing on the surface of the asphalt pavement, before the above water repellent spraying step, it is preferable to add.

This surface cleaning step is preferably performed by injecting a high-pressure air, since it does not leave moisture after cleaning, there is an advantage that can be sprayed immediately after cleaning the MMA resin.

Prior to the spreading of the MMA resin, it is preferable to first apply an adhesive to the surface of the asphalt pavement in terms of increasing the adhesion of the MMA resin to the asphalt pavement.

Such an adhesive is preferably MMA resin or epoxy resin adhesive.

The repair method according to the present invention can exert a unique effect even when applied to a drainage package (about 20% of voids).

In the case of drainage asphalt pavement, the scattering of aggregate on the surface of the pavement may be the most common form of damage, because when the repair method according to the present invention is applied, such damage can be effectively prevented.

In addition, when coating the surface of the drainage asphalt pavement with MMA resin, while maintaining the function of drainage, there is an advantage that can significantly improve the wear resistance of the pavement surface and the durability against scattering and cracking of aggregates.

In addition, when spraying by adding a specific pigment to the MMA resin, it is possible to implement a variety of colors on the surface of the asphalt pavement, which is a drainage pavement with excellent scenery for structures such as bus lanes, parking lots, pedestrian roads, interchange access roads, etc. Enables the formation of

Since the above has been described only with respect to some of the preferred embodiments that can be implemented by the present invention, the scope of the present invention, as is well known, should not be construed as limited to the above embodiments, the present invention described above It will be said that both the technical idea and the technical idea which together with the base are included in the scope of the present invention.

The present invention proposes a repair method that can efficiently repair the asphalt pavement with a small cost and time.

Claims (8)

A repair material spraying step of spraying MMA resin on the surface of the asphalt pavement; Repairing material curing step of curing the MMA resin; Repair method of asphalt pavement, characterized in that it comprises. The method of claim 1, The MMA resin is a repair method for asphalt pavement, characterized in that the reactive resin that has undergone a polymerization process. The method of claim 1, The MMA resin repair method of asphalt pavement, characterized in that the viscosity at 20 ℃ 900 ~ 1100MPa · s. The method of claim 1, Before the repair material spraying step, A surface cleaning step of removing foreign substances and damaged pieces of pavement existing on the surface of the asphalt pavement; Repair method of the asphalt pavement, characterized in that it further comprises. The method of claim 4, wherein The surface cleaning step is repairing method of the asphalt pavement, characterized in that performed by injecting a high pressure air. The method of claim 1, Before the repair material spraying step, Adhesive coating step of applying an adhesive to the surface of the asphalt pavement; Repair method of the asphalt pavement, characterized in that it further comprises. The method of claim 6, The adhesive is a repair method of asphalt pavement, characterized in that the MMA resin or epoxy resin adhesive. The method of claim 1, The asphalt pavement repair method of the asphalt pavement, characterized in that the drainage pavement.

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