KR100249345B1 - Duplex waterproof sheet - Google Patents

Abstract

The composite waterproof sheet of the present invention has an unvulcanized sticky rubber dough of rubber material attached to the upper surface of cement concrete on one side, and an unvulcanized rubberized asphalt dough attached to the bottom of the ascon layer, which is the upper limb during construction on the other side. Have The composite waterproof sheet may include sheet-shaped reinforcement between the unvulcanized sticky rubber dough and the unvulcanized rubberized asphalt dough.

Description

Composite Waterproof Sheet

The present invention relates to a composite waterproof sheet, and in particular, it is constructed between the cement concrete and the asphalt concrete layer constituting the bridge deck to be able to fully exhibit a continuous waterproof function in the harsh conditions of the bridge deck, as well as to be more easily installed The joint between the sheet and the sheet is integrated to achieve perfect joining performance, and at the same time, it is firmly joined to the asphalt concrete of the base and the ascon of the upper limb. The present invention relates to a composite waterproof sheet which is not torn or damaged by various heavy equipment such as a finisher and a roller car.

In general, the bridge deck is mainly made of cement concrete on the reinforcement structure, and after it is waterproofed with waterproofing materials to prevent damage to the reinforcement and concrete, and then asgon is laid, and heavy machinery such as wheelers and rollers are used. Compression compaction by vehicle completes the paving work.

On the other hand, in recent years, due to the rapid increase in traffic, cracks or damage to asphalt-paved roads frequently occur, which entails enormous maintenance and repair costs, as well as acid rain and vehicle exhaust gases. As it penetrates into and through the damaged part, there is a serious problem that the cement concrete and steel structure constituting the bridge deck are rapidly damaged or degraded.

Accordingly, it combines durability and vibration resistance and chemical resistance (acid resistance) to protect the tops of bridges and bridges, but also firmly adheres to cement concrete and lower layer asphalt concrete at the same time to prevent peeling or peeling under any adverse conditions. Waterproof material of the material is desperately required.

On the other hand, conventional waterproofing materials applied to bridge decks include penetration waterproofing agents, rubberized asphalt sheets, asphalt paints (water-based film waterproofing), organic solvent-type rubber paints and molded vulcanized rubbers (meaning the state of rubber cooking) There are sheets, but each has advantages and disadvantages, and no satisfactory results were obtained.

Of the conventional waterproofing materials, the penetration waterproofing agent was used in the early days, but as the strength of cement has been strengthened to 400kg / ㎠ or more due to the improvement of the civil engineering technology in recent years, it has been proved to be unreasonable as the penetration construction of the waterproofing waterproofing agent is not available. Avoiding.

Among the above-mentioned waterproof materials, rubberized asphalt sheet and water-soluble asphalt paint, that is, waterproof materials of asphalt main material have good physical properties in the short term because they have waterproof properties. Since the elastic force is reduced over time, the bonding strength to the asphalt concrete as the upper limb is excellent, but there is a problem that the bonding strength to the cement concrete is very poor.

In addition, when the temperature of the road surface rises above 30 ° C. to 50 ° C. in summer, the asphalt component decomposes and evaporates and the volume decreases. As a result, space is generated, so that partly cracks are generated and the peeling state is caused. The cracking and peeling phenomenon is further intensified by the load of the vehicle, and there is a problem that the waterproofing function is destroyed and the pavement layer is destroyed.

On the other hand, the molded vulcanized rubber sheet of the conventional waterproofing material is made of a rubber sheet as the main material and is in a cooked state, and has excellent elasticity, tensile strength, and elongation, which are inherent characteristics of rubber, so it is excellent in vibration and impact prevention, and excellent in chemical resistance. The waterproof function is excellent in itself, but the lack of adhesiveness, the construction of the connection portion connecting the sheet and the sheet is difficult and not perfect, there is a problem that the waterproof function is lost due to leakage of the connection portion.

However, above all, the molded vulcanized rubber sheet is able to be bonded to the cement concrete which is the base material to some extent, but there is a problem that the bonding with the ascon layer which is the upper limb is extremely poor, and thus it is not suitable to be applied to the bridge deck.

Recently, as a remedy for this, a solvent-based rubber paint (oilproof film waterproof) waterproofing material was developed and used in part. Since the rubber paint waterproofing agent is a liquid rubber unlike a molding vulcanized rubber sheet waterproofing material, the construction of the connection part is difficult. When the solvent is dried, a rubber sheet composed only of rubber is formed, which makes it an ideal waterproofing material to some extent.

However, such an organic solvent-type rubber coating is manufactured by dissolving rubber, a main material, in a highly volatile solvent such as toluene, benzene, and thinner by using a liquid stirrer, and thus a very high risk of fire during construction. It is very difficult to construct with large and uniform thickness.

However, first of all, in the case of the solvent-type rubber coating, the bonding strength to the cement concrete, which is the base material, is good, but the bonding strength to the asphalt concrete is very poor.

On the other hand, in view of the disadvantages of the conventional various waterproofing materials, the applicant of the present invention through the patent application No. 95-5008 and the patent application No. 96-37590 and the manufacturing method of the non-vulcanized adhesive waterproof sheet with the rubber as the main material and We have proposed a method for producing a rubberized asphalt sheet in which rubber and asphalt are cooled and stirred.

The adhesive waterproof sheet manufactured by the above-described manufacturing method is firmly bonded and connected to a single body only by pressing the overlapping connection portions between the rubber sheets when several sheets are connected to each other. Even if the area is achieved with one sheet of waterproof sheet, the waterproof sheet is gradually activated at room temperature and converted into vulcanized rubber, or is rapidly activated by high temperature generated from ascon, and is converted into vulcanized rubber as a conventional waterproof sheet. Its physical properties are unparalleled.

1 is a cross-sectional perspective view showing the structure of a conventional waterproof sheet.

Referring to this, although the waterproof sheet 10 of the prior art proposed by the present applicant as described above, each having the excellent characteristics as described above, as shown in Figure 1, the sheet-shaped unvulcanized adhesive rubber Or it is manufactured and used as a single piece in the form of the release paper 14 attached to the outer surface of the unvulcanized rubberized asphalt 12.

On the other hand, during construction, the unvulcanized sticky rubber or unvulcanized rubberized asphalt 12 is attached to the cement concrete surface constituting the bridge deck with the release paper 14 separated, and hot ascon is laid thereon. It is compacted while being squeezed as a sherr and roller vehicle

However, in the conventional waterproof sheet 10, the unvulcanized sticky rubber has a problem in that the adhesion to the cement concrete surface is excellent while the bond to the ascon layer is relatively poor. On the contrary, the unvulcanized rubberized asphalt is ascon. Although the adhesion to the layer is excellent, there is a problem in that the adhesion to the cement concrete surface is relatively poor.

In addition, in the case of the conventional waterproof sheet 10, since there is no reinforcing material, it is easily torn or broken by the above-mentioned ascier and roller vehicles operated in the ascon laying, pressing, and compacting process, and as a result, waterproofing on the cement concrete surface Even if the construction is made perfect, there is a problem that the leak or immersion through the broken or torn parts as a result does not properly exhibit the waterproof function.

The present invention has been studied and developed in order to further improve the above-described two types of waterproof sheet, the purpose is to have excellent waterproof and durability to exert a continuous and perfect waterproof function even in the harsh conditions of the bridge deck It has excellent strength, elongation rate, chemical resistance, heat resistance, cold resistance, etc., and can be installed more easily, and it shows perfect bonding performance by unifying the joint part of sheet and sheet when pressing compaction. Of course, in the bridge deck, the bidirectional adhesion between the bottom cement concrete surface and the bottom of the ascon layer on the upper side is very excellent, and a new form that is not torn or damaged by the heavy equipment used for ascon packaging work, such as a wheel loader or roller vehicle. To provide a composite waterproof sheet.

Another object of the present invention is to provide a method of manufacturing a composite waterproof sheet of a new way to prevent the separation and peeling easily due to excellent physical properties such as tensile strength and excellent bi-directional bonding performance to cement concrete and asphalt concrete layer. It is.

1 is a cross-sectional perspective view showing the structure of a conventional waterproof sheet,

2 is a cross-sectional perspective view showing an embodiment of a composite waterproof sheet according to the present invention;

3 is a cross-sectional perspective view showing an embodiment of a composite waterproof sheet according to the present invention,

4 is a cross-sectional perspective view illustrating a state in which the composite waterproof sheet according to the present invention is constructed on a bridge top plate.

* Explanation of symbols for main parts of the drawings

20, 40: composite waterproof sheet 22: reinforcement

24, 42: uncured adhesive rubber dough 26, 44: uncured rubber asphalt asphalt

28, 46: release paper 50: cement concrete

60: ascon layer

In order to achieve the above object, the present invention provides a sheet-shaped reinforcing material, an unvulcanized sticky rubber dough of a rubber main material adhered to one side of the reinforcing material and adhered to the upper surface of the cement concrete, which is applied at the time of construction. It is bonded to one side and has a feature of consisting of unvulcanized rubberized asphalt dough attached to the bottom surface of the ascon layer which is the upper limb during construction.

In the present invention, the reinforcing material is a film sheet made of a polymer resin such as polypropylene (polypropylene: hereinafter referred to as PP) resin, polyethylene (polyethylene: hereinafter referred to as PE) resin, or a film sheet made of natural or synthetic fibers. Has features.

In the present invention as described above, the reinforcing material has a characteristic of a mesh sheet made of a polymer resin such as PP resin, PE resin, or a mesh sheet made of natural or synthetic fibers.

On the other hand, in the present invention, the reinforcing material is characterized in that the adhesive rubber and toluene is mixed in a mixture of 2: 5 and dissolved in a rubber pool dissolved.

On the other hand, in the present invention, the unvulcanized sticky rubber dough and the unvulcanized rubberized asphalt dough adhered to both surfaces of the reinforcing material has the characteristic of expressing the colors of the same system or the color of different systems.

In the present invention, in the case of expressing the color of the different systems to each of the unvulcanized sticky rubber dough and the unvulcanized rubberized asphalt dough adhered to both sides of the reinforcing material, the unvulcanized sticky rubber dough is a blue color, Rubberized asphalt dough has the characteristics expressed in the color of brown system.

In the present invention, the blue pigment is added to express the color of the blue system to the unvulcanized sticky rubber dough adhered to one side of the reinforcing material, and the brown system to the unvulcanized rubberized asphalt dough adhered to the other side of the reinforcing material. Titanium oxide (Titanium Oxide) is added to express the color.

In the present invention as described above, the unvulcanized tacky rubber dough is characterized in that the vulcanization aid, softener, tackifier is added to the natural rubber and / or synthetic rubber, and the filler and the vulcanizing agent are added and mixed.

In the present invention as described above, the unvulcanized rubberized asphalt dough is a natural rubber or synthetic rubber and asphalt, a vulcanization aid, a tackifier is added, a filler and a vulcanizing agent is added and mixed characteristics.

In order to achieve the above object, another embodiment of the present invention has a feature that is directly adhered to each other in the state of the non-vulcanized tacky rubber dough and the unvulcanized rubberized asphalt dough is not through the reinforcing material.

On the other hand, the manufacturing method of the composite waterproof sheet of the present invention for achieving the above another object is to mix and stir a vulcanization aid, softener, tackifier, filler, vulcanizing agent to natural rubber and / or synthetic rubber in a predetermined ratio After preparing a tacky adhesive rubber dough, by mixing and stirring natural rubber and / or synthetic rubber with asphalt, vulcanizing aid, tackifier, filler, vulcanizing agent in a predetermined ratio, and preparing unvulcanized rubberized asphalt dough, The reinforcement prepared separately from the calender machine is used as an intermediate adhesive medium, and the unvulcanized adhesive rubber dough has a constant width and thickness on one side of the reinforcement, and the unvulcanized rubberized asphalt dough on the other side of the reinforcing material having a constant width and thickness. It has a feature of rolling out to be applied.

In order to achieve another object of the present invention, another embodiment of the manufacturing method of the composite waterproof sheet according to the present invention is mixed with natural rubber or synthetic rubber, vulcanizing aids, softeners, tackifiers, fillers, vulcanizing agents in a predetermined ratio And viscous rubber dough prepared in unvulcanized state, and mixed with natural rubber or synthetic rubber in asphalt, vulcanizing aid, tackifier, filler, vulcanizing agent in a predetermined ratio and stirred to make unvulcanized rubberized asphalt. After the dough is manufactured, the backside of the unvulcanized tacky rubber dough and the backside of the unvulcanized rubberized asphalt dough are directly rolled out to each other without a reinforcing material in a calender machine.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

Figure 2 is a cross-sectional perspective view showing one embodiment of a composite waterproof sheet according to the present invention.

Referring to this, the composite waterproof sheet 20 according to the embodiment of the present invention is coated with an uncured adhesive rubber dough 24 on one side of the reinforcing material 22, the other side of the reinforcing material 22 While the unvulcanized rubberized asphalt dough 26 is coated, release paper 28 is formed on the outer surface of the unvulcanized tacky rubber dough 24 and the outer surface of the unvulcanized rubberized asphalt dough 26, respectively. Attached.

At this time, the release paper 28 is used in the form of a silicone coating on the paper.

In the embodiment of the present invention, the reinforcing material 22 is made of a polymer sheet such as PP resin, PE resin, or a film-like sheet made of natural or synthetic fibers, the width and length of which are distributed in the trade. Made to fit

On the other hand, polymer resins such as PP resin and PE resin, or reinforcing material 22 in the form of a film sheet made of natural fibers or synthetic fibers may be used in the uncured adhesive rubber dough 24 or rubberized asphalt dough ( 26) Since the adhesion to the film is rather poor, use the mesh sheet as it is or use a sheet punched like a mesh.

In addition, the film-like or mesh-type sheet is dissolved by mixing the adhesive rubber and toluene in a ratio of 2: 5 in order to further improve the adhesion between the unvulcanized sticky rubber dough 24 and the rubberized asphalt dough 26. It is used as a reinforcing material 22 after immersing in the rubber pool.

In one embodiment of the present invention, the unvulcanized sticky rubber dough 24 contains 2% of stearic acid, 5% of magnesium oxide, 5% of zinc oxide, and 2% of sulfur as a vulcanizing aid in 100% of natural rubber and / or synthetic rubber as main materials. 20% of process oil is added as a softener, 20% of polybutene, 15% of modified phenolic resin, and 10% of petroleum resin are included as a tackifier, while 60% of calcium carbonate is contained as a filler, and DM is a vulcanizing agent. 2%, D 1%, T / T 1%, ZBX 2%.

In addition, in the embodiment of the present invention, the unvulcanized rubberized asphalt dough 26 is 100% natural rubber and / or synthetic rubber, 80% asphalt, as a vulcanization aid, stearic acid 2%, magnesium oxide 5%, zincated 5%, Sulfur 2%, polybutene 10%, modified phenolic resin 10%, petroleum resin 20%, vinyl acetate resin 5% as a tackifier, 30% calcium carbonate, 10% white carbon, clay 10% is contained, and the component composition contains 1% of DM, 0.8% of D, 1% of T / T, and 1% of NA22 as a vulcanizing agent.

Rubbers, which are the main materials of the unvulcanized tacky rubber dough 24 and the unvulcanized rubberized asphalt dough 26, have unique physical properties and characteristics for each kind, and are used in accordance with the use of the waterproof sheet or the demand of the consumer. Alternatively, synthetic rubber may be used alone, or a mixture of natural rubber and synthetic rubber may be used.

On the other hand, the above-mentioned synthetic rubbers include SBR rubber, IR rubber, IIR rubber, BR rubber, EPT rubber, CR rubber, NBR rubber, urethane rubber, CPE rubber. good.

In the present invention as described above to the unvulcanized sticky rubber dough 24 and the unvulcanized rubberized asphalt dough 26 is bonded to both sides of the reinforcing material 22, or to express the color of the same system or construction workers attached to the construction The colors of different strains can be expressed in order to easily recognize the directions.

As described above, in the case of expressing the colors of different systems in the unvulcanized tacky rubber dough 24 and the unvulcanized rubberized asphalt dough 26, the unvulcanized tacky rubber dough 24 has a blue color. The unvulcanized rubberized asphalt dough 26 has a brown color.

As such, in order to express the color of the blue system in the unvulcanized sticky rubber dough 24 adhered to one surface of the reinforcing material 22, 0.3% of the blue color pigment is added during the manufacturing process, and the other of the reinforcing material 22 is added. An appropriate amount of titanium oxide (Titanium Oxide) is added to express the brown system color to the unvulcanized rubberized asphalt dough 26 adhered to one side.

As such, each pigment added to express the color in the unvulcanized sticky rubber dough 24 or the unvulcanized rubberized asphalt dough 26 may be added or subtracted to obtain a desired concentration of color.

3 is a cross-sectional perspective view showing an embodiment of a composite waterproof sheet according to the present invention.

Referring to this, the composite waterproof sheet 40 according to the second embodiment of the present invention is the back surface of the unvulcanized sticky rubber dough 42 and the unvulcanized rubberized asphalt dough 44 in the state where no reinforcing material is interposed therebetween. The back surface shows the state directly adhere | attached with each other.

In the second embodiment of the present invention, the unvulcanized sticky rubber dough 42 is made of natural rubber and / or synthetic rubber as a main material, and pigments for expressing various components and desired colors described in one embodiment of the present invention. Is added.

In addition, the unvulcanized rubberized asphalt dough 44 is made of natural rubber and / or synthetic rubber as a main material, and various components described in the embodiment of the present invention and pigments for expressing a desired color are added.

The unvulcanized sticky rubber dough 24 and 42 and the unvulcanized rubberized asphalt dough 26 and 44 applied to the composite waterproof sheet 20 and 40 according to the first and second embodiments of the present invention described above. An example of the composition of components for) is as follows.

Referring to the manufacturing method of the composite waterproof sheet 20 according to an embodiment of the present invention according to the above components and component ratios are as follows.

First, natural rubber and / or synthetic rubber (SBR rubber, IR rubber, BR rubber, EPT rubber, IIR rubber, CR rubber, NBR in Kneader Mixer or Bunbury Mixer) After adding one of the rubbers, urethane rubbers and CPE rubbers (100%) and stirring it sufficiently, 2% stearic acid, magnesium oxide 5%, zinc oxide 5%, sulfur 2% and blue pigment 0.3% Stir and mix evenly and well.

Then, add 60% of calcium carbonate as a filler and 20% of process oil as a softener, and then stir-mix. Then, 20% of polybutene as a tackifier, 15% of modified phenolic resin, and 10% of petroleum resin are added to the mixture, and mixed to stir evenly. Finally, DM 2%, D 1%, T / T 1%, ZBX 2% as a vulcanizing agent is added to prepare the sticky rubber dough 24 of the unvulcanized counterpart.

In the same way, natural rubber and / or synthetic rubber (SBR rubber, IR rubber, BR rubber, EPT rubber, IIR rubber, CR rubber, NBR rubber, urethane rubber, CPE rubber) in a Kneader mixer or a semi-barrier mixer, which is a hermetic mixing machine. One of the mixtures (100%) was sufficiently stirred, and then 80% asphalt and 2% stearic acid, magnesium oxide 5%, zinc oxide 5%, and sulfur 2% were mixed well.

Then, 10% polybutene (polybutene), 10% modified phenolic resin, 20% petroleum resin, and 5% vinyl acetate resin were added to the mixture, and stirred and mixed so as to be dispersed well. %, Clay 10% was added and stirred, mixed, finally, vulcanizing agent DM 2%, D 0.8%, T / T 1%, NA22 1% was added and stirred well mixed and unvulcanized rubberized asphalt dough ( 26) is prepared.

After the above process, the unvulcanized sticky rubber dough 24 and the unvulcanized rubberized asphalt dough 26 are manufactured, and then the uncured sticky rubber dough 24 is prepared using a first calender machine. Rolling to a certain width and thickness while inserting a film or mesh sheet made of a polymer resin such as PP resin or PE resin, which is a reinforcing material 22, or a film or mesh sheet made of natural or synthetic fibers. Withdrawal, the unvulcanized sticky rubber dough 24 is applied to one surface of the reinforcing material 22 to a certain thickness.

Then, while rolling the unvulcanized rubberized asphalt dough 26 in the second calender machine, the reinforcing material 22 coated with the unvulcanized viscous rubber dough 24 rolled out in the first calender machine is inserted and The other side of the reinforcing material 22 is rolled out so that the unvulcanized rubberized asphalt dough 26 is applied to a certain thickness.

Accordingly, the composite waterproof sheet of the present invention having one side of the reinforcing material 22 coated with an unvulcanized sticky rubber dough 24, and the other side of the reinforcing material 22 having an unvulcanized rubberized asphalt dough 26 coated thereon. (20) is obtained.

While attaching the release paper 28 prepared separately to the outer surface of the composite waterproof sheet 20 manufactured as described above, cut to a certain length and wrap round.

If there is only one calender machine, the reinforcing material 22 is first inserted while rolling the unvulcanized tacky rubber dough 24, and the unvulcanized tacky rubber dough 24 is applied to one side of the reinforcing material 22. And then unrolled the unvulcanized rubberized asphalt dough 26 in the same calender machine and inserting the unvulcanized tacky rubber dough 24 to which the reinforcing material 22 was bonded to the other side of the reinforcing material 22. After being drawn while being applied to the unvulcanized rubberized asphalt dough 26 on the surface, the mold is cut to a certain length and rolled round while attaching the release paper 28 to both outer surfaces thereof.

On the other hand, in the case of manufacturing the composite waterproof sheet 40 according to the second embodiment of the present invention, in the same manner as mentioned above, the unvulcanized sticky rubber dough 42 and the unvulcanized rubberized asphalt dough 44 To prepare.

Then, first, the uncured adhesive rubber dough 42 is drawn out without the reinforcing material inserted in the calender machine, and then the uncured rubberized asphalt dough 44 is rolled in the same or another calender machine. After inserting the rolled-out uncured adhesive rubber dough 42, the back surface of the uncured adhesive rubber dough 42 and the back surface of the unvulcanized rubberized asphalt dough 44 are brought into direct contact with each other, and then rolled out. While attaching the release paper 46 to the outer side of the cut to a certain length to wrap round.

In the manufacturing method of the composite waterproof sheet 20, 40 according to the present invention, the main material of the rubber has its own physical properties and characteristics according to the kind, natural rubber or according to the use of the waterproof sheet or the demand of the consumer Synthetic rubber may be used alone, or a mixture of natural rubber and synthetic rubber may be used.

Moreover, you may mix and use two or more types of synthetic rubber from a different kind.

It describes the construction state using the composite waterproof sheet of the present invention as described above.

4 is a cross-sectional perspective view illustrating a state in which the composite waterproof sheet according to the present invention is constructed on a bridge top plate.

Referring to this, a plurality of composite waterproof sheets 20 are bonded to each other on the top surface of the cement concrete 50 constituting the bridge deck.

As such, when constructing the composite waterproof sheet according to the present invention, the unvulcanized sticky rubber dough 24 attached to one side of the reinforcing material 22 of each waterproof sheet 20 is in close contact with the upper surface of the cement concrete 50. In the state where the uncured rubberized asphalt dough 26 is directed upward, each waterproof sheet 20 is constructed to overlap with a neighboring waterproof sheet by a predetermined width.

In this state, when the pressing force is applied from the top to the bottom, the uncured adhesive rubber dough 24 is firmly adhered to the upper surface of the cement concrete 50, as well as the uncured adhesive rubber dough 24 and the unvulcanized rubberized asphalt. Due to the strong adhesiveness of the dough 26, the overlapping portions between each waterproof sheet 20 are combined into one body and integrated into one component to obtain the result of waterproofing the entire area with one unvulcanized sticky rubber dough.

As such, the construction of the waterproof sheet 20 is completed, and the high-temperature ascon is installed on the unprepared rubberized asphalt dough 26 of the waterproof sheet 20 for the construction of the asphalt pavement. After spreading evenly and compacted by roller vehicle, the unvulcanized rubberized asphalt dough 26 attached to the other side of the reinforcing material 22 is firmly adhered to the bottom of the ascon layer 60 and the asphalt pavement is completed. .

In the asphalt pavement process, unglued dough (24) and vulcanized in the uncured dough state, which was constructed on the cement concrete (50) surface by hot heat of 100 ° C to 160 ° C and compression compaction of heavy equipment, generated from ascon, a finishing material. The rubberized asphalt 26 is rapidly activated and converted into a vulcanized (learned) rubber sheet, which combines the rubber's original properties of elasticity with strong tensile strength and elongation.

On the other hand, the composite waterproof sheet 20 according to the present invention is a polymer resin or a sheet-shaped reinforcement made of natural or synthetic fibers in the middle of the unvulcanized sticky rubber dough 24 and the unvulcanized rubberized asphalt dough 26. Since (22) is inserted, it is not torn or damaged by the wheelsets and roller vehicles, which are heavy equipment used for paving asphalt.

In the case of waterproofing the bridge deck using the composite waterproof sheet according to the present invention, the mixed inorganic material such as calcium carbonate is activated by high temperature and high pressure, and as a strong adhesiveness is exhibited, uncured adhesive rubber It is firmly attached to the cement concrete upper surface of the base material, and the asphalt component contained in the unvulcanized rubberized asphalt dough is strongly bonded to the bottom of the asphalt concrete layer of the upper limb. The result of sticking a sheet as an adhesive agent is shown.

Accordingly, the composite waterproof sheet of the present invention exhibits physical properties such as durability, heat resistance, and chemical resistance, which are the original characteristics of rubber, as well as functions to alleviate vibration and shock, and also perform a waterproof function perfectly. .

In addition, since the composite waterproof sheet according to the present invention is a non-vulcanized adhesive rubber, it is bonded together by integrating each other even by simply pressing the overlapping parts at the time of construction. Get

In addition, the composite waterproof sheet according to the present invention is uncured adhesive rubber dough and uncured

Between the rubberized asphalt dough, the film-like or mesh-like sheet made of polymer or natural fiber or synthetic fiber is inserted into the reinforcing material so that it is not torn or damaged by various heavy equipment during ascon laying and paving.

In addition, in the composite waterproof sheet of the present invention, the unvulcanized tacky rubber dough adhered to one side of the reinforcing material expresses the color of blue system, and the unvulcanized rubberized asphalt dough bonded to the other side of the reinforcing material has brown color. As it is manufactured by expressing the color, the appearance is not only beautiful but also blue is attached to the cement concrete surface which is the lower surface, and brown is attached to the ascon layer which is the upper limb. It is possible to prevent inadvertent construction.

Claims (6)

In the composite waterproof sheet for installing between the cement concrete to form the base during construction and the ascon layer forming the upper limb, An unvulcanized sticky rubber dough forming one side of the composite waterproof sheet to attach to an upper surface of the cement concrete; Including an unvulcanized rubberized asphalt dough forming another side of the composite waterproof sheet opposite to the unvulcanized tacky rubber dough to adhere to the bottom of the ascon layer; The unvulcanized tacky rubber dough is formed by mixing and stirring a vulcanization aid, a softener, a tackifier, a filler and a vulcanizing agent in a rubber base composed of at least one of natural rubber and synthetic rubber, The unvulcanized rubberized asphalt dough is formed by mixing and stirring asphalt, a vulcanizing aid, a tackifier, a filler, and a vulcanizing agent in a predetermined ratio on a rubber base composed of at least one of natural rubber and synthetic rubber, thereby making the unvulcanized viscous rubber Dough and unvulcanized rubberized asphalt dough is converted into vulcanized rubber by the heat of the asphalt concrete layer, or composite waterproof sheet, characterized in that the conversion to vulcanized rubber at room temperature The method of claim 1, The composite waterproof sheet further comprises a reinforcement formed between the unvulcanized sticky rubber dough and the unvulcanized rubberized asphalt dough selected from the group consisting of polymer resin, natural fibers and synthetic fibers. The method of claim 2, The reinforcement is a composite waterproof sheet, characterized in that any one of the mesh sheet and the film sheet. The method of claim 2, The reinforcing material is a composite waterproof sheet, characterized in that the adhesive rubber and toluene was mixed and dissolved in a rubber pool dissolved by mixing in a ratio of 2: 5. The method of claim 1, The unvulcanized sticky rubber dough and the unvulcanized rubberized asphalt dough are composite waterproof sheets, characterized in that the colors of different systems are expressed. The method of claim 5, The unvulcanized sticky rubber dough is a blue color, and the unvulcanized rubberized asphalt dough is a composite waterproof sheet, characterized in that the addition of titanium oxide expressed in a brown color.

Images