KR101863885B1 - Pre-appled sheet membrane which is self-bonding with fresh concrete substrate - Google Patents

Abstract

The present invention relates to a waterproofing material for a self-supporting concrete sheet with a concrete pouring structure, and its object is to provide a waterproofing material for a self-supporting concrete sheet with a pouring- Concrete or in situ concrete continuous wall, and the other side water-reactive modified asphalt is an integral type of self-supporting sheet which is formed by integrating the concrete structure with the water- To provide waterproofing materials.
The structure of the present invention comprises a center substrate 11 constituting a structure; A water-reacted modified asphalt (12) formed on one side of the central base material and integrated with the concrete of the present structure by curing while exhibiting adhesive performance in response to cement and moisture when the concrete concrete (2) is installed; (13) formed on the other side of the central base and adhered to the continuous concrete wall or the concrete continuous wall, characterized in that the waterproofing material is a waterproofing material with a built-in concrete pouring structure integrally with concrete.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a self-

The present invention relates to a waterproofing material for a self-supporting concrete sheet with a concrete pouring structure, and more particularly, to a waterproofing material having a concrete pouring construction, which is constructed between the concrete concrete of the present invention and the concrete pavement And the other side is a waterproofing sheet material in which a waterproofing layer is integrally formed by the adhesion of the waterproof reaction when the concrete structure of the present structure is poured.

Concrete used extensively as a building material is a porous material, which has structural defects such as water absorption, drying shrinkage, and lack of stretchability due to lack of elasticity, resulting in cracks and leakage through cracks.

In order to overcome these drawbacks and to improve the durability of concrete structures, a waterproof layer made of a coating material on the concrete structure is formed on the concrete structure of the present invention. However, the waterproof layer is peeled off from the concrete structure due to the absorption of water, It has a disadvantage that it can not exert its performance, and as a result, it has difficulties in terms of maintenance and maintenance, and related costs are increasing.

Also, in order to solve the waterproofing problem using the coating material, various waterproofing methods such as a combined waterproofing method including a waterproofing sheet have been used recently. The waterproofing sheet to be used is not limited to the concrete, It is not able to cope with the separation phenomenon due to water absorption, and thus there is a structural disadvantage that leakage path occurs due to the movement path of water at the time of peeling.

In addition, only the construction and method for waterproofing the dried floor or roof have been disclosed, since most of the conventional waterproofing methods described above have been laid after the concrete structure of the present invention, There is no watertight structure between the concrete wall of the circumference and the concrete of the concrete structure. Therefore, a waterproof structure and a construction method are required through such a part.

It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a method of constructing an asphalt-type rubberized asphalt of one side of a concrete structure or horizontally installed concrete, The water-reactive modified asphalt which is adhered to the wall and the other side of the water-reactive modified asphalt is integrally formed with the water-reacting property by the water reaction when the concrete structure of the present invention is installed, thereby forming a complete waterproof layer. .

According to an aspect of the present invention, there is provided a semiconductor device comprising: a substrate; A water reaction type modified asphalt which is formed on one side of the center substrate and is cured when the concrete structure of the present structure is cured in response to cement and moisture and is integrated with the concrete of the present structure; And a rubberized asphalt formed on the other side of the central base and adhered to the continuous concrete or the continuous concrete continuous wall. The waterproofing material according to claim 1,

In a preferred embodiment, the adhered type rubberized asphalt comprises 10 to 20 parts by weight of synthetic rubber based on 100 parts by weight of straight asphalt; 5 to 10 parts by weight of a petroleum resin; 2-5 parts by weight of chlorosulfonated polyethylene; 5 to 10 parts by weight of a chlorinated paraffinic plasticizer; 1 to 3 parts by weight of a di-isononyl phthalate plasticizer compound; 5 to 15 parts by weight of a filler.

In a preferred embodiment, the synthetic rubber may be one selected from SBS (Styrene Butadiene Styrene), SIS (Styrene Isoprene Styrene), SEBS (Styrene Ethylene Butylene Styrene) and SBR (Styrene Butadiene Rubber).

In a preferred embodiment, the chlorinated paraffinic plasticizer may have a specific gravity of 1.1 to 1.3 and a chlorine content of 30 to 50%.

In a preferred embodiment, the water-modified modified asphalt comprises 10 to 30 parts by weight of a water-reactive and curing polymer based on 100 parts by weight of straight asphalt; 5 to 10 parts by weight of activated carbon; 5 to 15 parts by weight of mineral oil, 1 to 3 parts by weight of aminosilane, 1 to 3 parts by weight of an epoxy silane; 1 to 3 parts by weight of vinylsilane; 5 to 20 parts by weight of a filler.

In a preferred embodiment, the water-reactive and curing polymer may be a condensed modified silicone or a urethane resin.

In a preferred embodiment, the activated carbon may be a coconut or coal-based activated carbon having an iodine value of 9 to 13.

In a preferred embodiment, the center substrate may be selected from a long-fiber nonwoven fabric, a polypropylene woven fabric, a polyethylene film, and a glass fiber mesh.

The waterproofing material of the present invention having the above-mentioned features of the present invention can be formed as a waterproof layer of an asphaltic rubberized asphalt formed on the lower part of the central base member constituting the structure, The water-reactive type modified asphalt formed on the upper part can be integrally bonded, and the adhesive property is not developed until the concrete of the present structure is poured, so that the walking and subsequent construction process of the operator can be performed. It has an effect of preventing interfacial leakage by ensuring excellent adhesion performance by being adhered integrally with concrete while exhibiting adhesive performance by reacting with hydrate,

In addition, since the waterproofing sheet of the present invention has excellent weathering resistance, it can prevent rapid oxidation and aging due to ultraviolet rays,

In addition, according to the present invention, since the waterproofing sheet with the concrete-pouring-in-one-with-concrete structure can be integrally formed only by pouring the concrete without the additional process,

In addition, the composition constituting the waterproofing sheet with a concrete-pouring-type concrete insert according to the present invention is a useful invention having an effect of being harmless to the human body unlike the conventional modified asphalt waterproofing sheet,

1 is a cross-sectional view showing a construction of a seat waterproofing material according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a cross-sectional view showing a construction of a seat waterproofing material according to an embodiment of the present invention. The illustrated drawings are obtained by partially cutting out some of the construction sections for convenience of description of the present invention. The shape and the accumulation at the time of actual construction are not limited to those shown in Fig.

As shown in FIG. 1, the waterproofing sheet 1 of the present invention has three layers. First, the center substrate 11 is made of a long fibrous nonwoven fabric, a PP (polypropylene) (PE) film and a glass fiber mesh, and when the concrete structure (2) of the present structure is placed on the upper part of the central structure, the adhesive property is developed in response to the cement and moisture, A modified asphalt 12 is formed on the bottom of the center base and an adhered type rubberized asphalt 13 is adhered to the bottom of the center base and the abandoned concrete 3 or the vertically constructed concrete concrete continuous wall 4 to be installed after the trench.

Also, as shown in the drawing, it is preferable that waterproofing or waterproofing is performed so that both ends of the waterproofing sheet 1 with a concrete-pouring-type adhesive sheet 1 are bent upward when the abandoned concrete 3 is applied.

Hereinafter, a waterproofing sheet with a built-in concrete type sealant is specifically described.

First, the adhered type rubberized asphalt is composed of 10 to 20 parts by weight of synthetic rubber based on 100 parts by weight of straight asphalt; 5 to 10 parts by weight of a petroleum resin; 2-5 parts by weight of chlorosulfonated polyethylene; 5 to 10 parts by weight of a chlorinated paraffinic plasticizer; 1 to 3 parts by weight of a di-isononyl phthalate plasticizer compound; 5 to 15 parts by weight of a filler.

The straight asphalt is a bituminous material and plays a major role in waterproofing. Straight asphalt used should have a penetration of 60 to 80, or 80 to 100.

For reference, the properties of the above mentioned asphalt penetration and properties are currently distributed in refineries. Asphalt is the most commonly used as a waterproofing material. It is a quality standard defined by KS M 2201 straight asphalt.

The synthetic rubber is used as a modifier for improving the durability and cold resistance of asphalt. The synthetic rubber is preferably used as a modifier such as SBS (Styrene Butadiene Styrene), SIS (Styrene Isoprene Styrene), SEBS (Styrene Ethylene Butylene Styrene) Use the selected one. If the amount is less than 10 parts by weight in the composition, the elasticity of the asphalt is lowered, and the binder can not act as a binder with each of the mixtures. If the amount is more than 20 parts by weight, the flowability may be decreased and processing may be difficult.

The petroleum resin is used as a tackifier for improving the adhesion performance and is selected from C-9 series and C-5 series petroleum resins. The reason for the numerical limitation is that if the amount is less than 5 parts by weight in the composition, the adhesion performance is insufficient. If the amount is more than 10 parts by weight,

The chlorosulfonated polyethylene is used as an adhesion-promoting agent to improve the adhesion performance of the synthetic rubber by reacting with the synthetic rubber. The reason for the numerical limitation is that if the amount is less than 2 parts by weight in the composition, the adhesion performance is insufficient. If the amount is more than 5 parts by weight, the hardness of the synthetic rubber is improved and the adhesive performance is lowered.

The chlorinated paraffin-based plasticizer is a fluidizing agent for improving fluidity and processing performance and has a specific gravity of 1.1 to 1.3 and a chlorine content of 30 to 50%. Chlorinated paraffin type plasticizer improves compatibility of chlorosulfonated polyethylene with synthetic rubber to facilitate dispersion in asphalt, which affects compatibility with asphalt depending on the amount added. Chlorinated paraffinic plasticizers show lower physical properties when the specific gravity is lower than 1.1, and when the chlorine content is over 50%, they act as a phase separation element with the base exceeding the tacky, and the chlorine content is less than 30% When the content is shown, it is difficult to use the product because of its weak adhesive strength. When the amount is less than 5 parts by weight, the effect on the adhesive strength is insufficient. When the amount is more than 10 parts by weight, the viscosity is increased and the workability is lowered.

The di-isononyl phthalate plasticizer compound acts as a softening agent so that the purpose of raising the flash point and the respective mixtures of the straight asphalt can be sufficiently mixed. The reason for the numerical limitation is that if the amount of the additive is less than 1 part by weight, the flash point of the asphalt can not be raised and the gas can be generated. If the amount is more than 3 parts by weight, the compatibility of the asphalt and the chlorosulfonated polyethylene is impaired.

The filler is used for strength reinforcement and filling, and calcium carbonate or dolomite is used. The reason for the numerical limitation is that if the amount of the additive is less than 5 parts by weight in the composition, an air layer is formed in the mixing process to disrupt the dispersion, and if it exceeds 15 parts by weight, the precipitate may be generated.

On the other hand, the water-reactive modified asphalt contains 10 to 30 parts by weight of a polymer for water reaction and curing based on 100 parts by weight of straight asphalt; 5 to 10 parts by weight of activated carbon; 5 to 15 parts by weight of mineral oil, 1 to 3 parts by weight of aminosilane, 1 to 3 parts by weight of an epoxy silane; 1 to 3 parts by weight of vinylsilane; And 5 to 20 parts by weight of a filler.

The straight asphalt is a bituminous material and plays a major role in waterproofing. Straight asphalt used should have a penetration of 60 to 80, or 80 to 100.

For reference, the properties of the above mentioned asphalt penetration and properties are currently distributed in refineries. Asphalt is the most commonly used as a waterproofing material. It is a quality standard defined by KS M 2201 straight asphalt.

The condensation-type modified silicone or urethane resin is used as the polymer for water-reacting and curing. The polymer is a polymer for modifying asphalt and reacting with water and is used as a modifier to cure in response to moisture. The reason for the numerical limitation is that if the amount of the filler is less than 10 parts by weight in the composition, the curing by the moisture reaction does not proceed and the liquid phase is maintained. If the amount exceeds 30 parts by weight, rapid curing proceeds and the storage stability is unstable.

The activated carbon uses a coconut or coal-based activated carbon having an iodine value of 9 to 13 as a moisture adsorbent for absorbing moisture. When the amount of the filler is less than 5 parts by weight in the composition, the water absorption rate is lowered and the workability is lowered. If the amount is more than 10 parts by weight, it is difficult to control the curing time and the subsequent step is difficult. And the adsorption rate of 9 to 13 is used as the numerical value, the processability is stable.

As the fluidizing agent, the mineral oil having a paraffin content of 50 to 55% is used. When the amount is less than 5 parts by weight in the composition, the flowability is lowered and the workability is lowered. If the amount is more than 15 parts by weight, hardening progress is difficult and workability is lowered.

The aminosilane improves the adhesive performance of cement paste and moisture when the concrete structure of the present structure is used as an adhesion promoter. The reason for the numerical limitation is that if the amount is less than 1 part by weight in the composition, the adhesive performance is insufficient, and if the amount is more than 3 parts by weight, the efficiency of improving the adhesive performance is insufficient.

The epoxy silane is used for the purpose of bonding an organic material and an inorganic material. The reason for the numerical limitation is that if the amount of the compound is less than 1 part by weight, the precipitation of the inorganic material can be carried out, and if it exceeds 3 parts by weight, the phase separation of the mixture may be caused.

The vinyl silane is used as a water absorbing agent to improve the adhesion performance of the mixed materials and concrete by a curing catalyst by moisture reaction after the concrete structure is placed as a water absorbent and a storage stabilizer. If the amount is less than 1 part by weight in the composition, the reaction time with the concrete of the present structure takes a long time and is not integrated. When the amount exceeds 3 parts by weight, the reaction occurs rapidly to form a film, which is not integrated.

The filler is used for strength reinforcement and filling, and calcium carbonate is used. If the amount is less than 5 parts by weight in the composition, an air layer is formed in the mixing process to interfere with dispersion. If the amount is more than 20 parts by weight, precipitates may be generated.

On the other hand, the center substrate 11 is made of a long fiber nonwoven fabric, a PP (polypropylene) woven fabric, a PE (polyethylene) film and a glass fiber mesh.

Preferably, the polyester long-fiber non-woven fabric and the PP (polypropylene) woven fabric are formed to have a weight of 100 to 140 g per unit area (m 2). It is possible to prevent deformation due to heat or expansion and contraction due to the external environment when the temperature is in the range of 100 to 140 g / m < 2 >

It is preferable that the glass fiber mesh is formed to have 100 to 140 g per unit area (m 2). When it is less than 100 g / m < 2 >, it is broken and broken when it is folded, and it can not serve as a center substrate. When it exceeds 140 g / m < 2 >, the density and structure density increase.

The PE (polyethylene) film uses a film having a thickness of 150-200 탆. If the thickness is less than 150 탆, it can not exhibit sufficient physical properties as a central base. If the thickness exceeds 200 탆, Can break at low temperature bending

As described above, the construction method of the waterproofing sheet 1 with the concrete pouring-integrated type comprising the water-reactive modified asphalt 12 and the adhered type rubberized asphalt 13 formed on both sides of the central base 11 is described below do.

First, after constructing the concrete structure, the bottom part is laid horizontally and the concrete is constructed. In the circumference, a concrete concrete continuous wall is constructed vertically for the earth retaining.

Thereafter, the waterproofing sheet 1 having the concrete pouring-on-the-wall attachment type according to the present invention is adhered to the whole of the foreside concrete or the in situ concrete continuous wall. When such construction is completed, the adhered type rubberized asphalt (13) constituting the waterproofing material (1) with concrete pouring integrally with concrete is integrally adhered to the abandoned concrete or the concrete concrete continuous wall.

At this time, the water-reactive modified asphalt (12), which is the other side of the waterproofing material (1) with a concrete pouring-in-one type attachment type sealant, maintains a hardened state and has no surface adhesion force. It is possible.

Then, concrete concrete is placed in contact with the water-reactive modified asphalt (12). Activated carbon with iodine value of 9 ~ 13 reacts with epoxy silane, vinyl silane and so on by absorbing minerals of moisture and cement when the structure concrete is laid, so that it is integrated with excellent performance of adhesion to prevent peeling and peeling phenomenon .

The following is a preferred embodiment of the present invention.

(Example 1)

12 parts by weight of SBS as a tackifier, 5 parts by weight of a C-9 type petroleum resin as a tackifier, 6 parts by weight of a chlorinated paraffin plasticizer as a fluidizing agent, 10 parts by weight of a di-isononyl phthalate plasticizer 2 parts by weight of a compound, 3 parts by weight of chlorosulfonated polyethylene as an adhesion promoter, and 10 parts by weight of calcium carbonate as a filler were mixed to prepare an underfatged rubberized asphalt.

In addition, 30 parts by weight of condensed modified silicone, 5 parts by weight of mineral oil as a fluidizing agent, 5 parts by weight of coconut-based activated carbon having a thickness of 300 Mesh or less as a moisture adsorbent, 2 parts by weight of aminosilane, 2 parts by weight of a ring-zero epoxy silane, 1 part by weight of vinylsilane as a stabilizer, and 8 parts by weight of calcium carbonate as a filler were mixed to prepare a water-reacted modified asphalt.

After having the above-mentioned adhered type rubberized asphalt, a thermosetting rubberized asphalt was applied to the lower part of the polyester long-fiber nonwoven fabric with a thickness of 1 mm to prepare a primary sheet, and then water-reactive modified asphalt was applied and simultaneously contacted with water Followed by drying to form a total thickness of 2.5 mm.

Particularly, the above-mentioned adhered type rubberized asphalt is prepared by mixing the feedstock at 180 ° C and then cooling it to 130 ° C or lower to prepare a primary sheet. The water-reacted modified asphalt is mixed with the feedstock at 150 ° C, It was immersed in a water tank after curing, and cured at the same time as it was cooled to remove the adhesive property on the surface, thereby enabling the walking and subsequent processing operations.

(Comparative Example 1)

12 parts by weight of SBS as a tackifier, 5 parts by weight of C-9 type petroleum resin as a tackifier, 8 parts by weight of mineral oil as a fluidizing agent, and 10 parts by weight of calcium carbonate as a filler were mixed in 100 parts by weight of straight asphalt, To produce an epoxidized rubberized asphalt.

In the water-reactive modified asphalt, 15 parts by weight of SBS, 5 parts by weight of mineral oil as a fluidizing agent and 8 parts by weight of calcium carbonate as a filler were mixed with 100 parts by weight of straight asphalt to prepare water-modified modified asphalt.

After having the above-mentioned adhered type rubberized asphalt, a thermosetting rubberized asphalt was applied to the lower part of the polyester long-fiber nonwoven fabric with a thickness of 1 mm to prepare a primary sheet, and then water-reactive modified asphalt was applied and simultaneously contacted with water Followed by drying to form a total thickness of 2.5 mm.

The physical properties of the prepared Example 1 and Comparative Example 1 are summarized in Table 1 below.

[Table 1]

Comparative Example 1 is a physical property of a general KS F 4917 modified asphalt waterproof sheet, and the tensile strength and elongation percentage of Example 1 are similar to those of the Comparative Example. However, the low temperature bending performance exhibiting cold resistance is superior to the Comparative Example, The asphalt asphalt is excellent in adhesion to the backing surface (abandoned concrete or in situ concrete continuous wall), and the water-reactive modified asphalt is detached from Comparative Example 1 in comparison with the adhesion performance after the concrete structure of the present invention, It can be understood that the waterproofing material of the present invention is stably adhered to the concrete structure of the present invention.

In addition, it is confirmed that the permeability stability of the joint is not permeable due to the formation of an integrated waterproof layer

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

(1): Waterproofing sheet
(2): This structure concrete
(3): abandoned concrete
(4): Concrete continuous wall in place
(11): center substrate
(12) Water-modified type asphalt
(13): Adhesive type rubberized asphalt

Claims (8)

A center substrate constituting a structure;
A water reaction type modified asphalt which is formed on one side of the center substrate and is cured when the concrete structure of the present structure is cured in response to cement and moisture and is integrated with the concrete of the present structure;
And an adhered type rubberized asphalt formed on the other side of the central base and adhered to the discarded concrete or the in situ concrete continuous wall,

The above adhered type rubberized asphalt is prepared by mixing 10 to 20 parts by weight of a synthetic rubber based on 100 parts by weight of straight asphalt; 5 to 10 parts by weight of a petroleum resin; 2-5 parts by weight of chlorosulfonated polyethylene; 5 to 10 parts by weight of a chlorinated paraffinic plasticizer; 1 to 3 parts by weight of a di-isononyl phthalate plasticizer compound; And 5 to 15 parts by weight of a filler. ≪ IMAGE >
delete The method according to claim 1,
Wherein the synthetic rubber is one selected from the group consisting of SBS (Styrene Butadiene Styrene), SIS (Styrene Isoprene Styrene), SEBS (Styrene Ethylene Butylene Styrene) and SBR (Styrene Butadiene Rubber) Waterproof material.
The method according to claim 1,
Wherein the chlorinated paraffinic plasticizer has a specific gravity of 1.1 to 1.3 and a chlorine content of 30 to 50%.
The method according to claim 1,
The water-modified type asphalt is prepared by mixing 10 to 30 parts by weight of a water-reactive and curing polymer based on 100 parts by weight of straight asphalt; 5 to 10 parts by weight of activated carbon; 5 to 15 parts by weight of mineral oil, 1 to 3 parts by weight of aminosilane, 1 to 3 parts by weight of an epoxy silane; 1 to 3 parts by weight of vinylsilane; And 5 to 20 parts by weight of a filler. ≪ IMAGE >
The method of claim 5,
Wherein the water-reacting and curing polymer is a condensation-modified silicon or a urethane resin.
The method of claim 5,
Wherein the activated carbon is a coconut or coal-based activated carbon having an iodine value of 9 to 13.
The method according to claim 1,
Wherein the center substrate is made of any one selected from a long-fiber nonwoven fabric, a polypropylene woven fabric, a polyethylene film, and a glass fiber mesh.

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