KR101128981B1 - Manufacture method of water-proofing composites for bridge and water-proofing type construction method using the water-proofing composites - Google Patents

Abstract

PURPOSE: A manufacturing method of bridge deck waterproofing composition and a bridge deck waterproofing using thereof are provided to improve resistibility of the bridge deck waterproofing composition and adhesive force between paving course and waterproofing layer. CONSTITUTION: A manufacturing method of bridge deck waterproofing composition comprises the following steps: heating asphalt with a constant temperature; adding 5-15 parts by weight of chloroprene rubber, 5-10 parts by weight of extender oil, and 1-5 parts by weight of peroxide to the heated asphalt in order to fuse(S30); adding 5-15 parts by weight of 1,2-polybutadiene rubber, 1-5 parts by weight of magnesium oxide, and 1-5 parts by weight of zinc oxide to the fused solution in order to fuse(S40); mixing 1-10 parts by weight of carbon black, 10-30 parts by weight of calcium carbonate, and 1-5 parts by weight of fiber with the fused solution to manufacture a waterproofing agent(S50).

Description

Manufacture method of cross-linked waterproof composition and cross-linked waterproofing method using the waterproof composition

The present invention relates to a method for manufacturing a cross-linked waterproof composition and a cross-linked waterproofing method using the waterproof composition, more specifically, it can be produced at a relatively low temperature, thereby reducing the time and cost required for production, and the construction is simple, It can be installed at a relatively low temperature, it is not only fast drying but also there are not many construction steps, which can reduce the construction cost.

In addition, the construction time can be shortened to minimize traffic congestion, to prevent the occurrence of safety accidents to the maximum, and to have good resistance (contraction, expansion, cracking, vibration, temperature change, etc.) of the worker, and a paving layer and a waterproof layer. The present invention relates to a method of manufacturing a cross-linked waterproof composition that minimizes disadvantages and maximizes advantages over the prior art, such as preventing mold release (such as jungle) with excellent adhesion between the cross-linking and waterproofing methods using the waterproof composition.

In general building structures, it is necessary to prevent water leakage from precipitation, and waterproof work is necessary to prevent cracking or deterioration of durability of the structure.

In particular, the bridge's bridge is corroded by water penetration into cracks caused by physical and chemical degradation such as rainwater penetration and accumulated vehicle loads, corrosion of reinforcing bars, deterioration of bond strength between concrete materials, and The deterioration caused by repeated freezing and thawing in winter and corrosion of reinforcing bars due to chloride penetration of snow removal agent not only reduce the durability and life of the bridge, but also affect safety problems.

Thus, the Republic of Korea Patent Publication No. 10-2006-0025775 "bridge waterproof structure and waterproof method", etc. discloses a method for waterproofing the bridge of the bridge.

By the way, in the case of the "cross-facing waterproof structure and waterproof construction method" there is a problem that the production cost is increased by producing a waterproof material at a considerable temperature, the construction time is increased during the construction of the waterproof construction method increases the construction cost and concerns about traffic congestion there was.

In addition, a separate manufacturing process is required for manufacturing the glass fiber waterproof sheet used in the "cross-facing waterproof structure and waterproof construction method", and during construction, a separate manpower for attaching the glass fiber waterproof sheet must be mobilized. At the edge of the road there was a problem that must go through the process of cutting or cutting it.

In addition, the worker is attached to the glass fiber waterproof sheet in a state where the temperature of the waterproofing layer is high, there is a high risk of safety accidents.

The present invention is to solve and solve the problems caused by the prior art as described above,

It is an object of the present invention to provide a method of manufacturing a cross-linked waterproof composition that can be produced at a relatively low temperature to reduce the time and cost required for production, and a cross-waterproof method using the waterproof composition.

Another object of the present invention is a simple construction, can be constructed at a relatively low temperature, not only fast drying, but also a lot of construction steps, the method of manufacturing a cross-linked waterproof composition that can reduce the construction cost and waterproofing the bridge using the waterproof composition To provide a process.

Another object of the present invention to minimize the traffic congestion by reducing the construction time, to provide a method of manufacturing a cross-section waterproofing composition that can prevent the occurrence of safety accidents to the maximum, and to provide a cross-sectional waterproofing method using the waterproofing composition. have.

Another object of the present invention is to produce a cross-linked waterproof composition having good resistance (shrinkage, swelling, cracking, vibration, temperature change, etc. of the lower leg) and preventing releasing (such as jungle) phenomenon with excellent adhesion between the packaging layer and the waterproofing layer. It is to provide a method of cross-section waterproofing method using the method and the waterproof composition.

According to the present invention for achieving the above object, in the manufacturing method of the cross-section waterproof composition, Chloroprene rubber (Chloroprene Rubber) and a phenol resin (Phenol resin) is added to toluene (Toluene) to melt; And a primer manufacturing step of preparing a primer by adding calcium carbonate and pigment to the melt prepared in the first melting step and mixing the same. It provides a method of manufacturing a cross-sectional waterproof composition comprising a.

The chloroprene rubber may be configured to use 5 to 15 parts by weight, 5 to 10 parts by weight of phenol resin, and 60 to 80 parts by weight of toluene.

5 to 10 parts by weight of calcium carbonate, and 1 to 2 parts by weight of pigment may be configured to be used.

On the other hand, according to the present invention, in the method of manufacturing a cross-sectional waterproofing composition, asphalt (Asphalt) is heated to a constant temperature, chloroprene rubber (Chloroprene Rubber), extender oil (Extender Oil), peroxide (Peroxide) is added to the heated asphalt A second melting step of melting by melting; A third melting step of melting polybutadiene rubber (1,2-Polybutadiene Rubber), magnesium oxide (Magnesium Oxide) and zinc oxide (Zinc Oxide) into the melt prepared in the second melting step; And a coating film waterproofing manufacturing step of preparing carbon coating waterproofing agent by adding and mixing carbon black, calcium carbonate, and fiber to the melt prepared in the third melting step. It provides a method of manufacturing a cross-sectional waterproof composition comprising a.

In the second melting step, 1 to 5 parts by weight of toluene may be configured to be used.

The second melting step may be configured to heat 50 to 70 parts by weight of asphalt to 120 to 140 ° C.

Chloroprene rubber may be configured to use 5 to 15 parts by weight, 5 to 10 parts by weight of extender oil, and 1 to 5 parts by weight of peroxide.

5 to 15 parts by weight of polybutadiene rubber, 1 to 5 parts by weight of magnesium oxide, and 1 to 5 parts by weight of zinc oxide may be used.

Carbon black is 1 to 10 parts by weight, calcium carbonate is 10 to 30 parts by weight, fiber may be configured to use 1 to 5 parts by weight.

On the other hand, according to the present invention, in the cross-section waterproofing method, the primer layer forming step of forming a primer layer by applying a primer according to any one of claims 1 to 3 on the bridge; A coating layer waterproofing step of forming a coating layer waterproofing layer by applying the coating layer waterproofing agent according to any one of claims 4 to 9 on the primer layer; And a paving layer forming step of forming a paving layer made of any one or two of asphalt, concrete, and asphalt concrete on the coating waterproof layer. Provide a cross-section waterproofing method including a.

According to the method for manufacturing a crosslinked waterproofing composition according to the present invention and the crosslinking waterproofing method using the waterproofing composition, it is possible to produce at a relatively low temperature, thereby reducing the time and cost required for production.

In addition, the present invention is easy to construct, can be constructed at a relatively low temperature, not only fast drying, there are not many construction steps, there is an effect that can reduce the construction cost.

In addition, the present invention can minimize the traffic congestion by reducing the construction time, there is an effect that can prevent the occurrence of safety accidents of the operator as much as possible.

In addition, the present invention has good resistance (shrinkage, swelling, cracking, vibration, temperature change, etc.) of the lower extremity, and has an effect of preventing mold release (such as rolling) with excellent adhesion between the packaging layer and the waterproof layer.

1 is a flow chart illustrating a procedure for preparing a primer in a cross-section waterproofing composition according to the present invention.
Figure 2 is a flow chart showing the procedure for manufacturing a coating film waterproofing agent of the cross-section waterproofing composition according to the present invention.
Figure 3 (a) and (b) is a diagram showing the construction procedure of the cross-flow waterproofing method using the primer and the film waterproofing agent prepared in Figs.

Hereinafter, with reference to the drawings will be described in detail. However, these drawings are for illustrative purposes only and the present invention is not limited thereto.

Figure 1 is a flow chart illustrating a procedure for manufacturing a primer to form a primer layer is applied during the waterproof construction of the cross-section waterproofing composition according to the present invention.

Referring to Figure 1, the primer in the cross-section waterproofing composition according to the present invention is largely prepared through the first melting step (S10) and primer manufacturing step (S20).

In the first melting step S10, chloroprene rubber and phenol resin are added to toluene at room temperature using a stirrer to melt and stir. Here, the stirrer used in the preparation of the primer is preferably to use a stirrer capable of any one or both of the stirring speed, temperature control so as not to form a lump, and to prevent the temperature rises.

5 to 15 parts by weight of the chloroprene rubber used in the first melting step (S10), 5 to 10 parts by weight of phenol resin, 60 to 80 parts by weight of toluene is preferably used. In particular, the chloroprene rubber is difficult to work due to the high viscosity when added in excess of 15 parts by weight, the absorption of the concrete portion forming the bridge of the bridge (10 in Figure 3) is less likely to be peeled off. In addition, when the chloroprene rubber is added in less than 5 parts by weight of the product at low viscosity, the shelf life of the product worsens, the adhesion strength is lowered and the likelihood of peeling the waterproof layer is increased.

Then, after stirring for about 30 to 60 minutes to confirm that the chloroprene rubber and the phenol resin is completely melted, proceed to the next step, the primer manufacturing step (S20).

Primer manufacturing step (S20) is a step of preparing a primer (Primer) by adding and mixing calcium carbonate (Calcium carbonate) and pigment (Pigment) at room temperature to the melt prepared in the first melting step (S10).

Calcium carbonate fills the fine pores of the concrete and acts as a filler to suppress the generation of air pockets, and the pigment serves to impart color. The primer layer is coated by applying a primer during cross-waterproof construction (20 in FIG. 3). When forming the role of distinguishing the application area and the uncoated area by the classification of the color to be evenly applied with the thickness control.

It is preferable to use 5-10 weight part of calcium carbonates. If calcium carbonate is added in excess of 10 parts by weight, it is difficult to expect the elasticity of the primer, and if it is added in less than 5 parts by weight, it will not serve as a filler.

And although it is preferable to use 1-2 weight part of pigments, it is not good that the pigment itself is an expensive product and there are many addition amounts. If the pigment is used in less than 1 part by weight, it cannot give the required color, and when used in excess of 2 parts by weight, it increases the price of the product and acts as a cause of lowering the strength, elongation and weather resistance of the primer. Done. Meanwhile, in order to prevent the dust of the pigment, the pigment is not introduced in the primer manufacturing step (S20), but is added to toluene before the chloroprene rubber and phenol resin used in the first melting step (S10), and then chloroprene rubber and phenol The melt can be prepared by adding and stirring the resin.

After adding calcium carbonate and pigment, the mixture is mixed for about 30 to 60 minutes, and when there is no lump, the preparation of the primer is completed, and it is packaged in a predetermined container and stored and transported.

Figure 2 is a flow chart illustrating a procedure for manufacturing a coating film waterproofing agent to be coated during the waterproof construction of the cross-linking waterproof composition according to the present invention to form a coating film waterproofing layer.

As shown in Figure 2, the coating film waterproofing agent is largely manufactured through the second melting step (S30), the third melting step (S40) and the coating film waterproofing agent manufacturing step (S50).

The second melting step (S30) is a step of heating the asphalt (Asphalt) is added to the stirrer to a predetermined temperature, the chloroprene rubber (Extender Oil) and peroxide (Peroxide) is added to the heated asphalt melted to be. Here, the stirrer used in the manufacture of the film waterproofing agent may use a stirrer different from the stirrer used in the preparation of the above-described primer, but it is preferable to use the same stirrer, and even using a stirrer capable of temperature control even if using another stirrer It is good.

First, 50 to 70 parts by weight of asphalt is added to the stirrer and then heated to 120 to 140 ° C., which is relatively low temperature as compared with the prior art. Such asphalt increases the adhesion between the primer layer (20 in FIG. 3) and the pavement layer (40 in FIG. 3) described below.

Next, 5 to 15 parts by weight of chloroprene rubber is pulverized by a pulverizer, for example, 1 cm x 1 cm or less in width and length, and 0.5 mm or less in thickness, and crushed into a stirrer, and 5 to 10 parts by weight of extender oil and 1 to peroxide. 5 parts by weight is added and then stirred for about 1 to 3 hours to melt.

In this case, 1 to 5 parts by weight of a solvent, for example, toluene, may be added so that the melting process of the second melting step S30 may occur more easily. If you add more than 5 parts by weight, the risk of fire and the drying speed will occur, so be careful. If it is less than 1 part by weight, it will be difficult to see any effect.

Chloroprene rubber, like the first melting step (S10), when added to more than 15 parts by weight is difficult to manufacture and construction due to the high viscosity, when less than 5 parts by weight it is difficult to exhibit the performance as a cross-linking waterproof composition.

On the other hand, the extender oil is to improve the workability, the rapid thermal conductivity at the time of the first heating to increase the temperature of the product, and to facilitate the melting of chloroprene rubber.

In addition, the peroxide as an additive is a crosslinking agent of chloroprene rubber and polybutadiene rubber (1,2-Polybutadiene Rubber) described below to increase the heat resistance of the rubber product, and serves to promote curing.

When the materials introduced through the second melting step S30 are melted as described above, the third melting step S40 is performed.

In the third melting step S40, polybutadiene rubber (1,2-Polybutadiene Rubber), magnesium oxide, and zinc oxide are added to the melt prepared in the second melting step S30. Melting step.

To this end, after the temperature of the melt prepared in the second melting step (S30) is forced or naturally lowered to 80 ~ 100 ℃ 5 to 15 parts by weight of polybutadiene rubber, 1 to 5 parts by weight of magnesium oxide as an additive, oxidation 1-5 parts by weight of zinc is added and melted with stirring for about 1 to 3 hours.

Polybutadiene rubber is easy to form a waterproof layer (Sheet) and viscosity control even at a low temperature of about 80 ~ 100 ℃, and to prevent damage to the coating layer waterproof layer by the packaging layer described below with a high hardness and a large stretching force. In addition, it is resistant to bad weather, has good ozone resistance, has excellent aging resistance, and serves as an auxiliary reactant of chloroprene rubber with excellent restoring power.

The zinc oxide undergoing zincation reaction with magnesium oxide, which is a vulcanizing agent, controls the elasticity of the rubber material and assists in crosslinking.

When the third melting step (S40) is completed, the coating film waterproofing agent manufacturing step (S50) is performed.

Coating waterproofing manufacturing step (S50) is a step of preparing a coating waterproofing agent by adding and mixing the carbon black (Carbon Black), calcium carbonate, fiber (Fiber) in the melt prepared in the third melting step (S40).

First, after confirming that the materials introduced in the third melting step (S40) is completely melted without lumps, the melt is heated to a temperature of 120 ~ 140 ℃.

Then, 1 to 10 parts by weight of carbon black, 10 to 30 parts by weight of calcium carbonate, and 1 to 5 parts by weight of fiber are added to the heated melt, followed by stirring.

Carbon black and calcium carbonate enhance the wear resistance, durability, and strength of the coating waterproof layer (30 in FIG. 3) formed by coating the coating waterproofing agent during cross-linking construction, and the fiber acts like a conventional waterproof layer by The damage prevention of 30 of FIG. 3 and the adhesion to the packaging layer 40 of FIG. 3 are increased.

After the addition of these materials, the mixture is stirred for about 1 to 3 hours to melt completely without lumps, thereby completing the manufacture of the coating waterproofing agent. The prepared film waterproofing agent is stored and transported in a predetermined container.

Hereinafter will be described in detail with reference to the accompanying drawings a method of manufacturing a cross-section waterproofing composition according to the present invention and a cross-section waterproofing method using the waterproof composition.

Figure 3 (a) and (b) is a diagram showing the construction procedure of the cross-flow waterproofing method using the primer and the film waterproofing agent prepared in Figs.

Referring to Figure 3 (a) and (b), the cross-section waterproofing method according to the present invention consists of a primer layer forming step (S100), a coating film waterproofing layer forming step (S200) and a packaging layer forming step (S300).

Primer layer forming step (S100) is a step of forming a primer layer 20 by applying a primer prepared as described in FIG. 1 described above on the bridge of the building structure, for example, the bridge (10).

The primer to be applied to the bridge is melted in a liquid organic solvent, so it is applied at 0.2 kg / m 2 or more using a roller, brush or spray equipment. The applied primer is distinguished from areas that are not applied or incomplete by the pigment contained in the primer. The uncoated area is applied again after about 5 to 10 minutes.

 Coating layer forming step (S200) is a step of forming a coating layer waterproof layer 30 by applying a coating film waterproofing agent prepared as described in Figure 2 on the primer layer (20).

After the primer layer 20 is formed, the coating film waterproofing agent heated to a temperature of about 100 to 140 ° C. within about 5 minutes to 24 hours may have a thickness of about 1.5 to 2.5 mm using a rubber raker or a hot melt coating device. The coating film waterproofing layer 30 is formed by apply | coating as uniformly as possible. If unapplied or incomplete areas are applied again after about 30 minutes to 3 hours.

Pavement layer forming step (S300) is a step of forming a pavement layer 40 made of any one or two of asphalt, concrete, asphalt concrete (ascon) on the coating film waterproof layer (30).

After about 1 to 3 hours after the coating layer 30 is formed, the coating layer 30 is completely dried. In this state, the packaging layer 40 is formed. The paving layer 40 is formed by a generally used method of forming a road or the like.

According to such a cross-waterproof method can not only shorten the time until the packaging layer 40 is formed within one day, but also shorten the waterproof construction time from at least about 2 hours to 4 hours during repair.

In other words, it is possible to reduce labor costs and minimize traffic congestion during construction.

In addition, the resistance (shrinkage, swelling, cracking, vibration, temperature change, etc. of the lower) is not only good, but also a useful invention that can prevent the release (rolling, etc.) phenomenon with excellent adhesion between the packaging layer and the waterproof layer.

As such, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof.

It is therefore to be understood that the embodiments described above are to be considered in all respects as illustrative and not restrictive and the scope of the invention is indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

10: bridge 20: primer layer
30: waterproof film 40: packaging layer
S10: first melting step S20: primer manufacturing step
S30: second melting step S40: third melting step
S50: manufacturing film waterproofing agent S100: primer layer forming step
S200: forming the waterproof layer S300: forming the pavement layer

Claims (10)

In the manufacturing method of the cross-linked waterproof composition,
A second melting step of heating asphalt to a predetermined temperature and injecting and melting chloroprene rubber, extender oil, and peroxide into the heated asphalt;
A third melting step of melting polybutadiene rubber (1,2-Polybutadiene Rubber), magnesium oxide (Magnesium Oxide) and zinc oxide (Zinc Oxide) into the melt prepared in the second melting step; And
A coating film waterproofing manufacturing step of preparing a coating film waterproofing agent by adding and mixing carbon black, calcium carbonate, and fiber to the melt prepared in the third melting step;
Method of manufacturing a cross-sectional waterproof composition comprising a.
The method of claim 1,
In the second melting step,
1 to 5 parts by weight of toluene is used for producing a crosslinked waterproofing composition.
The method of claim 2,
The second melting step,
50-70 parts by weight of the asphalt is 120 to 140 ℃ the manufacturing method of the cross-sectional waterproofing composition, characterized in that for heating.
The method of claim 3, wherein
The chloroprene rubber is 5 to 15 parts by weight, 5 to 10 parts by weight of the extender oil, 1 to 5 parts by weight of the peroxide is used.
The method of claim 4, wherein
The polybutadiene rubber is 5 to 15 parts by weight, the magnesium oxide is 1 to 5 parts by weight, the zinc oxide is 1 to 5 parts by weight of the manufacturing method of the waterproof surface composition.
The method of claim 5, wherein
The carbon black is 1 to 10 parts by weight, the calcium carbonate is 10 to 30 parts by weight, the fiber is 1 to 5 parts by weight of the manufacturing method of the waterproof surface composition.
In the bridge waterproofing method,
In the cross-section, a first melting step of adding chloroprene rubber (Chloroprene Rubber) and phenol resin (Phenol resin) to toluene (melting); And a primer manufacturing step of preparing a primer by adding and mixing calcium carbonate and pigment to the melt prepared in the first melting step. A primer layer forming step of forming a primer layer by applying the primer prepared through:
A coating film waterproofing layer forming step of forming a coating film waterproofing layer by applying the coating film waterproofing agent according to any one of claims 1 to 6 on the primer layer: And
Pavement layer forming step of forming a pavement layer made of any one or two of asphalt, concrete, asphalt concrete on the coating layer;
Interfacial waterproofing method comprising a.
The method of claim 7, wherein
The chloroprene rubber is 5 to 15 parts by weight, the phenol resin is 5 to 10 parts by weight, the toluene is cross-linking waterproof method, characterized in that used 60 to 80 parts by weight.
The method of claim 8,
Said calcium carbonate is 5 to 10 parts by weight, the pigment is cross-linking waterproof method, characterized in that 1 to 2 parts by weight is used. delete

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