KR100576918B1 - Fast harden type a road repair material - Google Patents

Abstract

The present invention relates to a super-speed hardening road repairing material, the object of which is to facilitate the repair of roads around non-slip surface or cracked or partially dug roads and manholes, and to harden the completed road surface as soon as possible It is to supply road repairing materials that enable the traffic of vehicles.

The present invention for achieving this object is;

Non-slip surface on the road or Regarding the road repair material to be installed in the cracked area or the top of the recessed road surface,

The road repair material is an adhesive layer applied on the road repair surface;

It includes a water-retaining layer formed on top of the adhesive layer.

Accordingly, when the repair of the super fast curing type road repair material according to the present invention is completed, the repairing part can be cured in the shortest time so that the construction section can be opened immediately, and the adhesive force is increased, furthermore, the road repair material which reduces the construction cost is widely used. There is a supplied advantage.

Road refurbishment

Description

FAST HARDEN TYPE A ROAD REPAIR MATERIAL}

1 is a cross-sectional view showing the construction of the super-speed hardening road repair material according to the present invention,

Figure 2 is a process block diagram showing the construction method of the super-speed hardening road repair material according to the present invention,

Figure 3 is a side cross-sectional view of the heating apparatus used in the construction method of the super speed hardening road repair material according to the present invention.

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

10; road repair material 100; adhesive layer

200; repair floor

The present invention relates to a road repair material, and more particularly, to an ultra-fast curing road repair material comprising an adhesive layer applied to the cracked or recessed road repair surface, and a repair layer formed on the adhesive layer.

Recently, the road conditions in Korea are getting faster due to the rapid increase of vehicles and the passage of over 40 tons of large and overload vehicles, and the repair of cracks or potholes is also partly in progress. I'm doing it.

Therefore, Ascon is a representative road repairing material disclosed to repair such a road surface.

Ascon is abbreviated asphalt concrete, and it is called various names such as asphalt, asphalt mixture, asphalt concrete, hot mix and hot bitumen paving mixture, HMA (hot mix asphalt) according to KS F 2349 method. Asphalt, coarse aggregate (gravel), fine aggregate (sand), or packing fillers (fillers, mineral fillers) are heated to 170-180 ° C and dried, and then heated to 140-150 ° C in the dried material. It is prepared as a mixture having a suitable viscosity by mixing the straight asphalt binder.

 After laying the asphalt construction on the road surface prepared as described above, and using the road repair roller equipment to compact the repair surface.

However, ascon as described above has a problem that the hardening time takes a long time (approximately 10 to 20 hours), the vehicle communication on the road is not smooth.

In addition, due to the nature of asphalt, the viscosity of the binder is rapidly increased during the winter season, the viscosity of the binder is rapidly increased, so there is a problem that the installation and repair work is impossible, on the contrary, in the summer, the vehicle is heated by ascon formed at a high temperature and passes through the surroundings; There was a problem that caused inconvenience to passersby.

In addition, in the construction using the asphalt concrete as described above, dry matter such as aggregate and asphalt binder must be mixed by special equipment, and because a lot of manpower is mobilized, the construction cost is expensive, and the construction itself is difficult.

The present invention has been made to solve the conventional problems as described above, the object of the present invention is to harden the road repaired in the shortest time, so that the construction section can be opened immediately to those who pass through the vicinity To gain trust.

In addition, another object of the present invention is to allow road repair construction regardless of the season and at the same time to harden the road surface completed construction.

In addition, another object of the present invention is to reinforce the road surface constructed through a simple construction method and at the same time reduce the road repair construction cost.

The present invention for achieving the above object;

It relates to a road repair material to be installed on the non-slip surface or cracks on the road or the top of the hollow road surface,

The road repair material is an adhesive layer applied on the road repair surface;

It includes a water-retaining layer formed on top of the adhesive layer.

In addition, the adhesive layer is characterized in that the urethane-based primer.

In addition, the water-retaining layer includes 100 parts by weight of silica sand having a particle diameter of 0.5 to 20 mm, a urethane toner mixed at 0.02 to 5.0 parts by weight with respect to the silica sand, a curing agent mixed at 0.02 to 5.0 parts by weight with respect to the silica sand and the urethane toner, It consists of a urethane adhesive mixed in the ratio of 2-20 weight part with respect to the said silica sand, the urethane toner, and the said hardening | curing agent.

In addition, the urethane toner is a color pigment and a urethane adhesive in a ratio of 1: 1.

In addition, after the completion of curing, the water-retaining layer further comprises 0.1 to 1 part by weight of reinforced glass fibers to improve the water-retaining layer tensile strength.

In addition, the present invention relates to a construction method of road repair materials,

The construction method includes a construction surface cleaning step of cleaning the upper surface of the road;

A primer step of applying a urethane-based primer at least once on the road surface cleaned in the construction surface cleaning step;

A repairing material laying step of laying a road repairing material on the urethane-based primer applied in the primer step;

Injecting apparatus for spraying the upper surface of the road repair material installed in the repairing material laying step, 100 parts by weight of water, steam mixed with 2 to 5% parts by weight of an amine-based curing accelerator to the water, and the injector The heating device consists of a pair of rollers formed integrally and flattened, and includes a flattening step of curing.

Hereinafter, with reference to the accompanying drawings illustrating a preferred embodiment of the present invention in detail.

1 is a cross-sectional view showing a cross-section of the super-speed hardening road repair material according to the present invention, Figure 2 is a process block diagram showing a construction method of the super-speed hardening road repair material according to the present invention, Figure 3 is a super-speed hardening type according to the present invention One side cross-sectional view showing the heating device used in the construction method of road repair materials.

1 and 2, the road repair material 10 (hereinafter, referred to as "repair material") according to the present invention is roughly divided into an adhesive layer 100 and a repair layer 200.

The adhesive layer 100 is a urethane-based primer 110, and is applied at least once on the road repair surface using a brush or a roller.

The reason for the primary application of the urethane-based primer 110 is curing, that is, since the surface state of the hardened road surface is uneven, the concrete or asphalt road surface and the repair material 10 according to the present invention is peeled off from the road surface. It is for preventing the adhesion to steadily improving the adhesion of the water-retaining layer 200 to be described later.

As such, the repair layer 200 is formed on the adhesive layer 100.

The repair layer 200 is formed by mixing the silica sand 210, the urethane toner 230, the curing agent 250, and the urethane adhesive 270.

The silica sand 210 is composed of a myriad of irregular particle diameter of 0.5 ~ 20mm, 100 parts by weight is provided.

In addition, the urethane toner 230 is a coloring toner in which the coloring pigment 231 and the urethane adhesive 233 are mixed in a ratio of 1: 1, and 0.02 to 5.0 parts by weight of the silica sand 210 is mixed. .

The pigmented pigment 231 is mixed so as to be expressed in various colors such as black or gray depending on the road surface condition. When repairing a road made of asphalt, a black toner may be mixed, and when repairing a road made of concrete. You can mix gray toner.

The urethane adhesive 233 mixed with the coloring pigment 231 is a moisture-curable resin having a polyurethane NCO% of 4 to 9% or less, and is the same material as the urethane adhesive 270 described later. When the construction is completed, it is possible to maintain a strong adhesive force by the urea reaction.

On the other hand, the curing agent 250 is a mixture of 0.02 to 5.0 parts by weight based on the mixture of the silica sand 210 and the urethane toner 230.

This curing agent 250 is a polyamine-based, and as described above, the urethane toner 230 is first bonded again to the granular end groups of each of the silica sand 210, and 2 to 20 parts by weight of the urethane adhesive When 270 is mixed, the amine group (R-NH2) of the silica sand 210 colored with the urethane adhesive 233 as described above and the isocyanate (R-NCO) of the terminal group of the urethane adhesive 233 are urea (Urea). It is cured at a super speed by the reaction (see Table 1).

TABLE 1

       R─ NCO + R′─NH2 → R─NH─CO─NH─R ′

       ISOCYANATE POLYAMINE POLYUREA

Therefore, the silica sand 210, the urethane toner 230, and the curing agent 250 forming the repair layer 200 are mixed in advance in a factory, packed in a dry state, and only the urethane adhesive 270 is mixed in the construction site. The construction time can be reduced because the construction can be carried out in a viscous state.

At this time, when mixing the urethane adhesive 270, with respect to the sum of the silica sand 210, the urethane toner 230, the curing agent 250 and the urethane adhesive 270, the glass fiber 275 (aka "75") (Chop) ".) By adding 0.1 to 1 parts by weight can improve the tensile strength of the repair layer 200 according to the present invention.

Reinforced glass fiber 275 is a kind of reinforcing fiber tangled inside when mixed with the silica sand 210 and the urethane toner 230 and the curing agent 250 urethane adhesive 270 and when the curing is completed in the present invention The lifespan can be extended by improving the tensile strength of the repair layer 200.

Next, with reference to FIG. 2 and FIG. 3, the construction method (henceforth a construction method) of the super speed hardening type road repair material which concerns on this invention is demonstrated.

As shown, the construction method 500 according to the present invention comprises a construction surface cleanup step 510, a primer step 530, a repair material laying step 550, a flat step 570.

Construction surface cleaning step 510 is to clean the upper part of the road surface (1) made of concrete or asphalt to be repaired 10 according to the present invention to facilitate the subsequent process, after cleaning the high-pressure air Use it to dry and clean foreign substances such as dust and sand.

As described above, a primer step 530 of applying an urethane primer 110 at least once on the road surface 1 on which the cleaning is completed is performed to form the adhesive layer 100.

In this primer step 530, the urethane-based primer 110 is applied to the upper surface of the road surface (1) at least once by a suitable thickness using a brush or a roller.

As such, when the primer step 530 is completed, the repairing material laying step 550 is continued.

As described above, the step of installing the repairing material 550 includes 100 parts by weight of silica sand 210 having a particle diameter of 0.5 to 20 mm, and a urethane toner 230 mixed with 0.02 to 5.0 parts by weight with respect to the silica sand 210, 2 to 20 for the total amount of the hardener 250 mixed with 0.02 to 5.0 parts by weight of the silica sand 210 and the urethane toner 230, and the total amount of the silica sand 210 and the urethane toner 230 and the hardener 250 combined. The urethane adhesive 270 may be mixed in a weight part to provide a viscous aggregate on the road surface to form a water-retaining layer 200, or 0.1 to 1 weight when mixed with the urethane adhesive 270 described above. The negative tempered glass fiber 290 may be further added to form the water retention layer 200.

As described above, the colored aggregate and the urethane adhesive 270 are dried and packaged by mixing the curing agent 250 again in a dried state by coloring and mixing the urethane toner 230 with the silica sand 210 having a non-uniform size in a factory. ) In the field to be installed on the urethane-based primer 531 previously applied in the primer step 530 described above.

As such, when the repairing material laying step 550 is completed, the leveling step 570 for flattening the repairing material 10 installed in each step is continued.

Flattening step 570 is a high-temperature steam (351a) containing a curing accelerator for the rapid curing of the urethane adhesive 270 mixed with the hardening agent 250 of the moisture hardening type while at the same time roller compacting the upper portion of the installed repair material 10 Spray).

At this time, the curing accelerator entering the steam 351a is an amine system, which is used by mixing 2 to 5 parts by weight of the curing accelerator with 100 parts by weight of water.

In the flattening step 570, it is preferable to use the heating apparatus disclosed in the "elastic packaging material construction method and heating apparatus used for the construction method" filed by the present applicant as patent application No. 10-2005-27740.

Referring to FIG. 3, the heating device 300 includes a pair of rollers 310, a protective cover 330, an injection device 350, and a branch 370.

By rolling of this roller 310, the upper part of the repair material 10 installed in the upper part of the road surface can be flattened.

In addition, the injection device 350 is disposed in the longitudinal direction of the inner side of the protective cover 330 disposed in the middle portion on the cross section of the pair of rollers 310, the plurality of steam ejection holes 351 is provided below .

On the other hand, each end of the injection device 350 is coupled to both ends of the branch (370), the injection hose (not shown) of the mobile steam boiler (not shown) through the injection hole 371 provided on the upper side It can be easily connected with.

Injector 350 is when the steam 351a containing the amine curing accelerator is injected from the steam jet hole 351, because the urethane adhesive 270 included in the water-retaining layer 200 according to the present invention is moisture-curable As shown in Table 1, R-NCO and aggregate R-NH2 at the terminal of the urethane adhesive 270 is urea-reacted by high temperature steam 351a to cure at high speed.

Therefore, the water-retaining material 10 according to the present invention, in which the moisture-curable resin is mixed, is made at the same time as the flat work and the hardening work, so that the hardening is completed within at least two hours, and thus the vehicle can pass.

Thus, according to the ultra-fast curing road repair material and the construction method according to the present invention, so that the road repair can be completed in a short time regardless of the season, it is possible to communicate with the vehicle within a short time.

In addition, the road construction cost is reduced through a simple construction method, gaining the trust of users.

In addition, as described above, the super-speed hardening road repair material and the construction method of the road repair material according to the present invention has been described only for the use of repairing cracks or potholes on the upper surface of the road, but in the same way the road surface around the steel ingots Of course, the object of the present invention can be achieved even if applied to the construction to form a repair and anti-slip surface.

The present invention is not limited to the above-described specific preferred embodiment, and any person skilled in the art to which the present invention pertains can easily perform the modifications. Be within the scope of the description.

As described in detail above, according to the present invention, the cured road is cured in the shortest time, and thus the construction section can be opened immediately, thereby gaining trust from those who pass through the vicinity.

In addition, it is possible to repair the road regardless of the season and at the same time has the effect of hardening the road surface completed construction in the shortest time.

In addition, by further adding the reinforced glass fiber to the repair material forming the repair layer to improve the strength of the completed repair layer, there is an effect of extending the life of the repair layer.

In addition, it is effective in strengthening the surface of the road constructed through a simple construction method and at the same time reducing the road repair construction cost and at the same time providing the simple construction method widely.

Claims (6)

(delete)  (delete) (correction) In the road repair material for repairing and constructing the non-slip surface or cracks on the road and the upper part of the recessed road surface, The road repair material is an adhesive layer applied to the road repair surface with a urethane-based primer; 100 parts by weight of silica sand having a particle diameter of 0.5 to 20 mm, a urethane toner mixed at 0.02 to 5.0 parts by weight with respect to the silica sand, and 0.02 to 5.0 weight with respect to the sum of the silica sand and the urethane toner formed on the adhesive layer. 0.1 to a total of a curing agent mixed with the negative electrode, a urethane adhesive mixed with the silica sand, the urethane toner and the curing agent at a ratio of 2 to 20 parts by weight, and a sum of the silica sand, the urethane toner, the curing agent and the urethane adhesive. Ultra-fast curing road repair material, characterized in that it comprises a repair layer made of reinforced glass fibers mixed in a ratio of ~ 1 part by weight. The method of claim 3, wherein The urethane toner is a super fast curing type road repair material, characterized in that the coloring pigment and the urethane adhesive in a ratio of 1: 1. (delete) (delete)

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