KR100632397B1 - A pavement construction method - Google Patents

Abstract

The present invention can be carried out new and renovation in a short time to reduce labor costs, to reduce the time required for traffic control to minimize the inconvenience to the surrounding people, the time after new and renovation The purpose of the present invention is to provide a high quality package construction method that can prolong the life of the pavement by minimizing the occurrence of new cracks and plastic deformation and maintaining excellent waterproofing performance and adhesion with existing concrete.

Construction method according to the present invention for achieving the above object, the surface treatment step of finishing to remove the foreign matter on the surface of the object; After the surface treatment step, applying a prime coat resin, a mixture of a reaction initiator and a reaction promoter on the surface of the object; A blending step of blending the polyester resin binder, the reaction accelerator and the reaction initiator with the aggregate; A laying step of laying the compound blended in the blending step on an upper surface of the prime coat coating layer; After the installation step, characterized in that it comprises a compaction step of compacting the installed formulation.

Packaging, construction, prime coat, formulation, laying, curing

Description

Package construction method {A pavement construction method}

Figure 1 is a process diagram showing the construction of the bridge pavement and the paving of the existing road pavement using polyester concrete.

The present invention relates to a method for constructing a package, and more particularly, it is possible to carry out new and renovation work in a short time, thereby reducing the time required for traffic control to minimize the inconvenience to the surrounding people, and new And it is an object of the present invention to provide a high-quality package construction method that can increase the life of the packaging by suppressing the occurrence of new cracks and plastic deformation to the maximum, and maintain excellent waterproofing performance and adhesion even after the repair work.

In general, pavement can be divided into general road pavement on the ground and bridge pavement on the bridge.

In addition, in the above-mentioned description, the road installed on the ground may be classified into a concrete pavement using concrete as a pavement and an asphalt pavement using asphalt as a pavement.

And, in the above-mentioned part, the road installed on the bridge is usually completed by forming a waterproof layer on the bridge top plate and then paving the asphalt with pavement on the waterproof layer.

As described above, in the roads and bridges described above, when repair work is required due to cracking and aging of the package, the existing construction method is carried out as follows.

First, in the case of roads, when the pavement is a concrete pavement, asphalt is covered with a predetermined thickness to restore running and flatness.

In the case of the road, when the pavement is an asphalt pavement, the asphalt of the surface layer is partially cut to restore flatness, and the asphalt is covered with a predetermined thickness as described above.

Finally, in the case of bridges, asphalt as a pavement is completely removed, and then asphalt as a new pavement is packed.

However, the conventional repair method has the following problems.

First, in case of asphalt pavement on bridge deck, this is a permeable pavement. Therefore, in order to protect the reinforced concrete of bridge deck, the waterproofing layer is installed in advance of bridge pavement. When cutting and repacking, there is a problem that breakage of the waterproof layer, loss of waterproof function of the bridge, acceleration of reinforcement of the reinforced concrete deck, cracking of the deck structure and degradation of durability. In addition, due to frequent repacking, there is a problem in that the bridge maintenance fee is excessively input and becomes a factor of traffic obstacles.

Second, even when the asphalt pavement is overlaid on the concrete pavement, there is a problem that the cracks of the existing concrete pavement are propagated to the overlaid asphalt of the upper part by the load generated in the vehicle driving, thereby generating new cracks.

Recently, latex modified concrete has been developed and used for paving bridge decks. Latex modified concrete is an improved cross-linking method for incorporating latex into general cement concrete to increase the waterproof performance, adhesion and flexural strength of the concrete, thereby improving the life of the pavement.

In contrast, the polyester concrete used in the present invention completely excludes the use of cement and is a method of mixing polyester resin with a reaction initiator and a reaction accelerator with aggregate. In the case of latex modified concrete, it takes several days to cure, whereas polyester concrete has the advantage of being able to open early in a few hours by hardening. It is a road paving method that has improved waterproof performance than conventional concrete or asphalt as well as latex modified concrete.

The present invention has been created to solve the above problems, and can perform new and renovation work in a short time, thereby minimizing the time required for traffic control to solve the inconvenience to people around, new and It aims to provide a high quality package construction method that can prolong the life of the package by restraining the occurrence of new crack and plastic deformation as much as possible after the renovation work and maintaining excellent waterproof performance and adhesion.

Construction method according to the present invention for achieving the above object, the surface treatment step of finishing to remove the foreign matter on the surface of the object; After the surface treatment step, applying a prime coat resin, a prime coat mixture containing a reaction initiator and a reaction promoter on the surface of the object; A blending step of blending the polyester resin binder, the reaction accelerator and the reaction initiator with the aggregate; A laying step of laying the compound blended in the blending step on an upper surface of the prime coat coating layer; After the installation step, characterized in that it comprises a compaction step of compacting the installed formulation.

Hereinafter, a preferred embodiment of the package construction method according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a process chart showing the pavement construction step of the bridge pavement and the existing road pavement using polyester concrete.

Package construction method according to the present invention, the surface treatment step (S100) to trim to remove the foreign matter on the surface of the object; After the surface treatment step (S100), and applying a prime coat resin, a mixture of the reaction initiator and the reaction promoter on the surface of the object (S200); A blending step (S300) of combining the polyester resin binder, the reaction initiator and the reaction accelerator with the aggregate; A laying step (S400) of laying the blended compound in the blending step (S300) on the object within a predetermined time; After the installation step (S400), the compacted step is made to include a compacting step (S500) using a vibration compactor and the like.

Here, the reason for proceeding the surface treatment step (S100) is to increase the adhesive force by removing the foreign matter from the surface of the blend.

In addition, the prime coat application step (S200) is to increase the adhesion between the surface of the object and the polyester concrete by adsorbing by applying a mixture of the prime coat resin, the reaction initiator and the reaction promoter to the surface of the object.

In the prime coat step, the prime coat resin should be applied in an amount sufficient to completely cover the surface of the object.

At this time, a reaction initiator (curing agent) and a reaction accelerator are added to cure the prime coat resin, and the reaction initiator and the reaction accelerator are added in an amount of 0.1% to 5% with respect to 100% by weight of the prime coat resin, respectively.

Here, the addition amount of the reaction initiator and the reaction promoter may be increased or decreased depending on the surface temperature of the object.

In addition, in the blending step 300, the polyester resin binder and the reaction initiator and the reaction accelerator should be completely mixed with the aggregate using a mechanical or continuous mixer.

In the blending step 300, the amount of the polyester resin binder is blended using about 8% to 16% with respect to 100% by weight of the dried aggregate.

In addition, the amount of the reaction initiator and the reaction promoter is used in each of 0.1% to 5% with respect to 100% by weight of the polyester resin binder.

At this time, the addition amount of the polyester resin binder, the reaction initiator and the reaction accelerator may be appropriately increased or decreased according to the atmospheric temperature, the surface temperature of the object, and the granulation rate of the aggregate.

Here, after performing the prime coat application step before performing the installation step (S400), the installation step (S400) is carried out after approximately 15 minutes or more so that the prime coat resin is sufficiently adsorbed on the surface of the object. .

In the surface treatment step (S100), a shot blasting method or the like may be used as the surface treatment method, and if the surface of the object is contaminated, it may be removed cleanly using an abrasive or the like.

On the other hand, the present invention further comprises a drying step (S110) for drying the surface of the object to maintain a dry state between the surface treatment step (S100) and the prime coat application step (S200).

Here, the reason for proceeding the drying step (S110) is to prevent the adhesion of the surface and the compound of the object is weakened due to the moisture when the coating step to be described later.

Here, the compound proceeds in the installation step (S400) is installed on the upper surface of the prime coat applied to the surface of the object proceeded by the prime coat application step (S200).

Next, after the installation step (S400), the compaction step (S500) for compacting the installed formulation with a vibration compactor, and so on.

The present invention further includes a surface roughness adjusting step (S510) for adjusting the surface roughness to secure the proper sliding resistance by making a non-slip joint or by spraying sand after the compaction step (S500). You can also proceed.

The reason why the surface roughness adjusting step (S510) is performed is to satisfy related regulations such as surface roughness, sliding resistance, flatness, and friction coefficient.

After the surface roughness adjusting step S510 is performed, the present invention may further include a curing step S600 which cures the passage of the vehicle and the inflow of water while the polyester concrete is cured.

Here, in the curing step (S600), the vehicular traffic prohibition time varies depending on the air temperature, the road surface temperature, the amount of sunshine, etc., but preferably about 30 minutes to 4 hours.

The object of the present invention described so far is any one of a road paved with asphalt, which is a paving body, a road paved with concrete, which is a paving body, and a top plate of a bridge.

That is, in the case of bridges, when the asphalt, which is a pavement, is aged, the aged asphalt is removed, and then the construction method of the present invention is applied to an object exposed to the outside, namely, a top plate.

The present invention is also applicable to the process of constructing a bridge for the first time.

In the case of the road, the pavement can be subjected to the overhaul repair work regardless of asphalt or concrete.

In other words, by applying the construction method of the present invention on the asphalt or concrete pavement of the road is to be overlaid with the compound.

As described above, according to the package construction method according to the present invention, it is possible to perform a new and repair construction for a short time to reduce the time required for traffic control to minimize the inconvenience to the surrounding people, The maintenance cost can be reduced by prolonging the life of the package by minimizing the occurrence of new crack and plastic deformation and maintaining excellent waterproofing performance and adhesion even after the time of new and repair work.

In the present invention, in the bridge, the compound of the present invention may be applied immediately to the surface of the top plate without the need to provide a waterproof layer between the conventional top plate and the asphalt.

In other words, the present invention does not require a waterproof layer as in the prior art because of the excellent waterproof performance of the compound.

In addition, the curing time can be adjusted by appropriately adjusting the amount and mixing ratio of the resin, the reaction promoter and the reaction initiator, which are components of the compound of the present invention, and can be used in any climatic conditions, and curing is possible over a short time regardless of the day or the night .

Therefore, the present invention can be opened immediately in the morning after construction using a relatively small amount of traffic at dawn even in road conditions with high traffic volume.

Claims (8)

A surface treatment step of finishing to remove foreign substances on the surface of the object; A prime coat application step of applying a mixture of a prime coat resin, a reaction initiator, and a reaction accelerator to the surface of the object after the surface treatment step; A blending step of blending the polyester resin binder, the reaction accelerator and the reaction initiator with the aggregate; A laying step of laying the compound blended in the blending step on the object within a predetermined time; After the installation step, the package construction method characterized in that it comprises a compacting step of compacting the installed formulation. The method of claim 1, And a drying step of drying the surface of the object to maintain a dry state between the surface treatment step and the coating step. The method according to claim 1 or 2, After the compaction step, the package construction method further comprises a surface roughness adjusting step of adjusting the surface roughness to secure the sliding resistance by placing a non-slip joint on the surface of the compound or by spraying sand. The method of claim 3, wherein After the surface roughness adjusting step, the package construction method further comprises a curing step of curing by inhibiting the passage of the vehicle and the inflow of water for a predetermined time. The method of claim 4, wherein Vehicle passage prohibition time is 30 minutes to 4 hours the package construction method characterized in that. The method of claim 5, The object is a pavement construction method, characterized in that any one of the road paved with asphalt pavement, the pavement concrete is paved, the top plate of the bridge. The method of claim 1, In the prime coat application step, the addition amount of the reaction initiator and the reaction promoter is a package construction method, characterized in that 0.1% to 5% each with respect to 100% by weight of the prime coat resin. The method of claim 1, In the blending step, the amount of the polyester resin binder is 8 to 16% with respect to 100% by weight of the dried aggregate, the amount of the initiator and the reaction promoter is 0.1% to 100% by weight of the polyester resin binder, respectively Package construction method characterized in that to 5%.

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