KR101954238B1 - Waterproofing Treatment Composition Comprising SIS and Waterproofing Methods using Thereof - Google Patents

Abstract

The present invention relates to a waterproofing composition and a waterproofing method using the same. According to the present invention, the waterproofing composition includes: 0.1-50 parts by weight of styrene isoprene styrene; 0.1-40 parts by weight of a petroleum resin; 5-30 parts by weight of methyl methacrylate; 5-30 parts by weight of a silane compound; 5-30 parts by weight of an anion emulsifier; 5-20 parts by weight of octylphenol ethoxylate; 1-10 parts by weight of caustic soda; 3-20 parts by weight of nano ceramic particles; 5-20 parts by weight of charcoal powder; 5-30 parts by weight of an anti-stripping agent; 3-10 parts by weight of an antioxidant; and 1-20 parts by weight of an adhesion enhancer, with regard to 100 parts by weight of asphalt. According to the present invention, a coating agent having excellent permeation performance to fine cracks and capillary pores is applied to the waterproofing method. Thus, the waterproofing composition can form an additional protective film and can also strengthen the combination of the interface of a waterproofing agent and concrete bridge surface which is easily damaged by external loads or impacts. Moreover, the waterproofing composition can improve anti-permeability resistance and can remarkably improve durability of the concrete bridge surface.

Description

[0001] The present invention relates to a waterproofing composition comprising SIS and a waterproofing composition using the waterproofing composition,

The present invention relates to a cross-linked waterproofing composition comprising SIS and a method of using the same, and more particularly, to a method of manufacturing a cross-linked waterproofing composition containing SIS, which is capable of improving durability, water resistance and chloride penetration resistance by forming a pavement on a concrete structure, And a construction method using the same.

Generally, a bridge of a concrete bridge or a structure increases the penetration amount of the rainwater or the snowing material as the common softening water increases, and the load applied to the bridge accumulates. Therefore, the bonding force between the materials decreases. easy.

Cracks in concrete structures and the like are enlarged with the lapse of time, resulting in deterioration of the strength and life of the concrete structure. When the penetration through the cracks of the asphalt pore cracks and the median separator and the joints, Thereby shortening the life of the structure and collapsing the structure.

Therefore, a waterproofing agent is applied to the bridges of concrete bridges or structures to prevent degradation of the strength and life of the concrete structures due to infiltration of rainwater or abrasive materials. By applying a waterproofing agent to the bridges of such concrete structures, it is possible to prevent deterioration of the bottom plate concrete and corrosion of steel bars caused by water and chloride penetrating from the pavement layer.

Unlike waterproofing materials used in construction and other fields, the concrete bridging waterproofing agent is used for the complexity of the complex action of mechanical action such as cyclic load, vibration, impact, shear, etc. due to driving vehicle and contraction due to temperature change. The waterproofing layer is liable to be damaged, so that it is expensive to repair or reinforce the damaged pavement waterproofing layer, and there is a problem of causing traffic delay by partially controlling the roadway during construction.

On the other hand, waterproofing methods applied to concrete bridges include infiltration waterproofing, sheet waterproofing, and film waterproofing. Although the permeable waterproofing method has been widely used for its simple and economical reason, the waterproofing agent is not sufficiently penetrated into the high-strength concrete bridges and thus the waterproofing performance can not be expected. The sheet waterproofing method has low temperature characteristics, In a country with four seasons, there is a problem in that it does not show a great effect in improving the waterproof performance of concrete bridges.

Therefore, recently, a coating waterproofing method in which a synthetic resin material is applied to form a waterproof coating is preferred.

An example of application of the coating waterproofing method is disclosed in Korean Patent Publication No. 1999-37809, wherein an epoxy primer layer is applied to the surface of a bridge or the like, and a quick-setting polymer resin layer, a ground polymer resin layer, A bridging waterproofing method is disclosed.

However, since the polymer resin layer applied to the cross-linked waterproofing method disclosed in the above patent is quick-drying curing within 5 seconds, each layer is separated or cracked before the asphalt concrete, the asphalt and the epoxy primer layer are fused to each other, Can not be expected. In addition, it is necessary to form various treatment layers on the primer layer such as quick-drying and water-repellent polymer resin layer and fine-stone aggregate layer. If the multiple layers are not laminated, the adhesive force of each layer is weakened and the layer separation phenomenon occurs , There is a problem that the waterproof effect is inferior even if the construction can not be actually carried out or the construction is carried out.

In order to solve such a problem of multilayer, Korean Patent Laid-Open Publication No. 2002-76214 discloses a method in which a polyurethane resin primer layer is coated on the surface of a bridge or the like, and a quick-drying polymer resin layer is formed thereon. Discloses a treatment method in which an asphalt adhesive layer and an asphalt concrete layer are sequentially laminated after applying a polyurethane production mixture.

However, this method is disadvantageous in that the excessive amount of isocyanate present in the polyurethane production mixture layer reacts with the surrounding moisture, resulting in a weak bonding force. To avoid such problems, it is necessary to carry out a complicated work process There is another problem that is required.

The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a concrete pavement and a waterproofing agent which are excellent in penetration resistance and excellent in penetration resistance to microcracks and capillary pores of a concrete structure, The present invention provides a cross-linked waterproofing composition comprising SIS which can greatly improve the durability of concrete bridges by consolidating bonding at interfaces.

The present invention

On the basis of 100 parts by weight of asphalt,

0.1 to 50 parts by weight of styrene isoprene styrene;

0.1 to 40 parts by weight of a petroleum resin;

5 to 30 parts by weight of methyl methacrylate;

5 to 30 parts by weight of a silane compound;

5 to 30 parts by weight of an anionic emulsifier;

5 to 20 parts by weight of octylphenol ethoxylate;

1 to 10 parts by weight of caustic soda;

3 to 20 parts by weight of nano-ceramic particles;

5 to 20 parts by weight of charcoal powder;

5 to 30 parts by weight of an anti-peeling agent;

3 to 10 parts by weight of an antioxidant; And

1 to 20 parts by weight of an adhesion promoting agent.

In addition,

A cleaning step of cleaning a surface to be applied to the composition of the antifouling composition; And

After completion of the aeration step, 0.1 to 50 parts by weight of styrene isoprene styrene, 0.1 to 40 parts by weight of petroleum resin, 5 to 30 parts by weight of methyl methacrylate, 5 to 30 parts by weight of silane compound, 5 to 30 parts by weight of an emulsifier, 5 to 20 parts by weight of octylphenol ethoxylate, 1 to 10 parts by weight of caustic soda, 3 to 20 parts by weight of nano-ceramic particles, 5 to 20 parts by weight of charcoal powder, 5 to 30 parts by weight of anti- , 3 to 10 parts by weight of an antioxidant, and 1 to 20 parts by weight of an adhesion promoting agent is applied in a thickness of 0.1 to 30 mm to the surface of the cross-linked waterproofing agent composition.

The cross-linked waterproofing composition according to the present invention can be applied to a waterproofing method by applying a coating agent having excellent penetration performance to microcracks and capillary pores of concrete, and can form an additional protective film, and can be easily damaged by external load or impact, It is possible to improve the resistance to penetration and to greatly improve the durability of the concrete bridge face.

Hereinafter, the present invention will be described in detail.

In one aspect, the present invention provides a process for the preparation of an asphalt composition comprising, on a weight basis of 100 parts by weight of asphalt, 0.1 to 50 parts by weight of styrene isoprene styrene; 0.1 to 40 parts by weight of a petroleum resin; 5 to 30 parts by weight of methyl methacrylate; 5 to 30 parts by weight of a silane compound; 5 to 30 parts by weight of an anionic emulsifier; 5 to 20 parts by weight of octylphenol ethoxylate; 1 to 10 parts by weight of caustic soda; 3 to 20 parts by weight of nano-ceramic particles; 5 to 20 parts by weight of charcoal powder; 5 to 30 parts by weight of an anti-peeling agent; 3 to 10 parts by weight of an antioxidant; And 1 to 20 parts by weight of an adhesion promoter.

According to another aspect of the present invention, there is provided a method of fabricating a cross-linked waterproofing composition, comprising the steps of: And 0.1 to 50 parts by weight of styrene isoprene styrene, 0.1 to 40 parts by weight of petroleum resin, 5 to 30 parts by weight of methyl methacrylate and 5 to 30 parts by weight of silane compound, based on 100 parts by weight of asphalt, 5 to 30 parts by weight of an anionic emulsifier, 5 to 20 parts by weight of octylphenol ethoxylate, 1 to 10 parts by weight of caustic soda, 3 to 20 parts by weight of nano-ceramic particles, 5 to 20 parts by weight of charcoal powder, And 3 to 10 parts by weight of an antioxidant, and 1 to 20 parts by weight of an adhesion promoting agent is applied in a thickness of 0.1 to 30 mm to the surface of the cross-linked waterproofing agent composition.

The crosslinked waterproofing composition according to the present invention is used for preventing water leakage and condensation due to cracks occurring in the interior of the building, the interior of the building, and the like. For this purpose, Anything may be used.

The asphalt according to the present invention is not particularly limited as long as it is commonly used in the art, but petroleum-based asphalt or asphalt mixture can be preferably used.

Here, it is recommended to use a natural asphalt mixture as the asphalt mixture.

The asphalt mixture, specifically, the natural asphalt mixture is not particularly limited as long as it is a natural asphalt mixture commonly used in the art, but is preferably selected from the group consisting of straight asphalt, Trinidad lake asphalt, Trinidad epure asphalt, It is preferable to use at least one mixture selected from the above. More preferably, it is preferable to use a mixture of straight asphalt having an intrusion of 20 to 40 and natural asphalt such as trinidad lake asphalt and / or trinidade with puree asphalt, It is recommended to use 70 to 80% by weight of straight asphalt with an intrusion of 20 to 40 and 20 to 30% by weight of natural asphalt consisting of trinidad rake asphalt or puree asphalt.

Herein, the straight asphalt is a conventional asphalt obtained by refining the residue obtained by distillation or distillation of raw materials with petroleum asphalt. Especially, the asphalt is preferably 20 to 40 in terms of easiness in construction on the road.

The straight asphalt is preferably contained in the asphalt mixture in an amount of 70 to 80% by weight. If the content is less than 70% by weight, it may take a long time to harden after the asphalt pavement, and the softening point may be lowered. If the content exceeds 80% by weight, the fluidity may be lowered.

In addition, the natural asphalt acts to increase the fluidity of the cross-linked waterproofing composition of the present invention and to increase the deformation resistance, the sliding resistance and the frictional resistance.

Trinidad lake asphalt and / or trinidad epure asphalt may be used as natural asphalt.

The natural asphalt is preferably contained in the asphalt mixture in an amount of 20 to 30% by weight. When the content is less than 20% by weight, the effect of improving the fluidity, the deformation resistance, the sliding resistance and the frictional resistance is insignificant, The asphalt of the present invention may be softened and the softening point may be lowered.

The content of the components other than asphalt constituting the cross-linked waterproofing agent composition according to the present invention, specifically the cross-linked waterproofing agent composition comprising SIS, is based on 100 parts by weight of asphalt.

The styrene isoprene styrene (SIS) according to the present invention inhibits cracking of the cross-linked water repellent composition and prevents portholes, as well as provides strength and point resistance.

The amount of styrene isoprene styrene to be used may be varied according to the user's choice, but it is preferably 0.1 to 50 parts by weight based on 100 parts by weight of asphalt.

The petroleum resin according to the present invention is mixed with asphalt to lower the viscosity of the composition, to increase the physical properties at high temperature, and to impart performance such as adhesiveness and cracking prevention. The petroleum refining process or oil produced as a by- Any resin may be used as long as it is obtained by polymerizing an olefin-containing material by various methods. Preferably, an aromatic petroleum resin, an aliphatic petroleum resin, or a mixture thereof may be used. Particularly preferably, Of 100 ° C or higher and an invasion degree of 3 mm or lower and a viscosity at 140 ° C (viscosity of 140 ° C below) of 50 to 500 cps is preferable. However, it is recommended to use a petroleum resin having a melting temperature of 110 ° C to 140 ° C and an invasion degree of 0.5 to 2 dmm , A petroleum resin having a viscosity at 140 ° C of 50 to 300 cps is preferable, but more preferably, an aliphatic C-5 having a viscosity of 100 to 150 cps It is better to use a lagoon.

In one embodiment, the petroleum resin may be used in combination with petroleum resin having a low or high softening point so that the petroleum resin exhibits strong adhesion regardless of temperature change.

At this time, by blending a mixture of petroleum resin having a softening point as low as about 90 to 100 DEG C and a softening point as high as about 105 to 120 DEG C at a weight ratio of 1: 9 to 9: 1, preferably 6.5: 3.5, It can be obtained by controlling the physical properties.

In addition, the petroleum resin having a low softening point improves the initial cohesive force to improve the adhesive strength, and the petroleum resin having a high softening point can increase the heat resistance to prevent the flowing down, increase the weatherability, and improve the adhesion.

In another embodiment, the petroleum resin according to the present invention may be provided with a rosin and the like in order to compensate for the adhesive function, so that the stretched properties of the rosin can provide more stable adhesive performance.

At this time, the mixing ratio of the petroleum resin to the rosin is not particularly limited, but it is preferable that the mixture is mixed at a weight ratio of 1: 9 to 9: 1.

If the melting temperature of the petroleum resin is 100 ° C or less, it may adhere to each other or form a lump if the temperature is high. If the petroleum resin has an invasion degree of 0.5 dmm or less, It becomes a problem.

If the viscosity of the petroleum resin at 140 ° C is 500 cps or more, the viscosity of the petroleum resin is higher than that of the asphalt, and the production time becomes too long.

The amount of the petroleum resin to be used is not particularly limited, but it is preferably 0.1 to 40 parts by weight based on 100 parts by weight of the asphalt.

Methyl methacrylate (MMA) according to the present invention maintains excellent adhesive force and mechanical properties to prevent cracks and dropouts due to external impacts.

It is recommended that the preferred amount of methyl methacrylate be 5 to 30 parts by weight based on 100 parts by weight of asphalt.

Wherein the methyl methacrylate comprises 49 to 70% by weight of a low viscosity methyl methacrylate (MMA) resin having a viscosity of 10 to 1,000 cps, 20 to 50% of high viscosity methyl methacrylate (MMA) having a viscosity of 2,000 to 20,000 cps, And 1 to 10% by weight of a mixture of at least one selected from styrene isoprene styrene (SIS), styrene butadiene rubber (SBR), and styrene butadiene styrene (SBS) is mixed with a methyl methacrylate mixture obtained by mixing ethylene / May be used.

The silane compound according to the present invention is intended to allow the materials constituting the cross-linked water repellent composition to easily bond with each other. For this purpose, a silane compound commonly used in the art such as perfluoromethoxysilane, perfluoro Perfluoroalkoxysilane such as ethoxysilane or tetraalkoxysilane such as tetramethoxysilane or tetraethoxysilane, dialkoxysilane, silane oxide, alkoxysilane, silane oxide or a mixture thereof may be used .

In particular, the silane compound according to the present invention is intended to increase crack resistance, chemical resistance and the like, and to improve thermal stability and mechanical properties.

The amount of the silane compound to be used is not particularly limited, but is preferably 5 to 30 parts by weight based on 100 parts by weight of the asphalt.

The anionic emulsifier according to the present invention is used for easily dispersing the components constituting the antifouling composition of the present invention. Any conventional anionic emulsifier having such a purpose may be used.

Preferable examples of the anionic emulsifier include sodium acid salts such as sodium methanesulfonate, alkali metal salts of ligninsulfonic acid, naphthalene sulfonic acid derivatives, chlorobenzene derivatives, higher fatty acid alkali metal salts, alkylbenzene sulfonates, alpha-olefin sulfonates, poly Oxyethylene alkylphenyl ethers, sodium alkylaryl sulfonates, or mixtures thereof.

The preferred amount of the anionic emulsifier used is 5 to 30 parts by weight based on 100 parts by weight of the asphalt.

The octylphenol ethoxylate according to the present invention is an ethoxylated octylphenol derivative which is contained in a crosslinked waterproofing agent composition, specifically, a crosslinked waterproofing agent composition containing SIS, so that a coating film can be easily formed on a surface to which a waterproofing agent is applied do.

The amount of the octylphenol ethoxylate is preferably 5 to 20 parts by weight based on 100 parts by weight of the asphalt.

The caustic soda according to the present invention is intended to maintain the optimum pH of the cross-linked water repellent composition, for example, pH 7 to 12.

 The caustic soda may be used in an amount of 1 to 10 parts by weight based on 100 parts by weight of the asphalt constituting the cross-linking waterproofing composition.

Since the nanoceramics according to the present invention float on the surface during drying of the cross-linked water repellent composition to form a dense and hard surface, it is possible to prevent permeation of water vapor and other gases and liquids, and to prevent moisture, durability, The impact resistance and the chemical resistance are improved.

The amount of the nanoceramic particles used is preferably 3 to 20 parts by weight based on 100 parts by weight of the asphalt.

Preferred nanoceramic particles include silicon carbide, alumina, silica, zirconia-silica, ZnO, TiO ₂ and / or CaCO ₃ .

It is preferable that the average particle size of the ceramic particles is in the range of nanometers. Specifically, the average particle size of the silicon carbide is 300 to 500 nm, the average particle size of the alumina is 500 to 1000 nm, the average particle size of the silica is 700 to 1500 nm, -The average particle size of silica is 500-1000 nm, the average particle size of ZnO is 500-1000 nm, the average particle size of TiO ₂ is 100-300 nm, and the average particle size of CaCO ₃ is 500-1000 nm.

Among them, silicon carbide does not exist as natural minerals, so it is synthesized artificially, has excellent chemical stability and corrosion resistance at high temperature, and has high hardness.

The charcoal powder according to the present invention is intended to improve the dispersibility of a composition such as asphalt constituting the cross-linked waterproofing composition due to a high porosity and to increase the tensile strength by improving the bonding force. Any kind of charcoal powder may be used, and it is preferable to use charcoal powder which is powdered with a ball mill.

The amount of the preferable charcoal powder to be used is not particularly limited, but it is recommended that the amount is 5 to 20 parts by weight based on 100 parts by weight of the asphalt.

The anti-peeling agent according to the present invention is intended to prevent the anti-peeling agent composition from being easily peeled off from the pavement side, that is, from the face of the anti-peeling agent, and any conventional peeling inhibitor in the art having such an object may be used, It is preferable to use a phosphate-based, amine-based, or phosphoric acid ester-based anti-peeling agent.

Specifically, the anti-peeling agent is a liquid phase anti-peeling agent having a specific gravity of 1.0 or more and a viscosity at 60 DEG C of 110 cPs; The acid value is 10 mgKOH / g or less, and the total amine value is 140 to 400 mg HCl / g.

It is recommended that the preferred amount of the anti-peeling agent used is 5 to 30 parts by weight based on 100 parts by weight of the asphalt.

The antioxidant according to the present invention is used for preventing the oxidation of the antifouling composition of the present invention. Any conventional antioxidant may be used for the antioxidant composition, and the antioxidant may be used in an amount of 3 to 10 parts by weight based on 100 parts by weight of the asphalt Weight is recommended.

Preferred antioxidants include amine-based, bisphenol-based, monophenol-based and sulfur-based antioxidants, but more specifically, 2.2-methylenebis (4-methyl-6-t-butylphenol). 2 - M ethylenebis (4 - methyl - 6 - t - butylphenol), 2.6 - di - t - Butyl - 4 - methylphenol or mixtures thereof I recommend you.

The adhesion promoting agent according to the present invention is intended to improve the adhesion of the cross-linking waterproofing agent composition. Any conventional adhesion promoting agent for this purpose may be used, and preferably, hydroxyethyl acryloyl phosphate, Hydroxyethyl methacrylate phosphate or a mixture thereof may be used, and the use amount thereof is preferably 1 to 20 parts by weight based on 100 parts by weight of the asphalt.

The crosslinked waterproofing composition according to the present invention may further comprise one or more kinds of adducts of the following specific embodiments.

In a specific embodiment, the crosslinked waterproofing composition according to the present invention is used as a waterproofing composition in which the waterproofing cross-linking agent is applied on the basis of 100 parts by weight of asphalt to provide elasticity and flexing resistance while providing tensile force and / or lightness by stress applied in the longitudinal- 3 to 15 parts by weight of cellulose fibers.

In another specific embodiment, the crosslinked waterproofing composition according to the present invention may further comprise 5 to 30 parts by weight of a plasticizer based on 100 parts by weight of the asphalt to smoothly perform the mixture between the components.

Preferred plasticizers are selected from the group consisting of terephthalic acid metal salts, stearic acid metal salts, petroleum resins, low molecular weight polyethylenes and low molecular weight polyamides.

In another specific embodiment, the antifouling composition according to the present invention may further contain 0.5 to 5 parts by weight of preservative based on 100 parts by weight of the asphalt.

Preferred preservatives include isothiazoline derivatives.

In another specific embodiment, the cross-linked waterproofing composition according to the present invention comprises 10 to 10 parts by weight of asphalt in order to reflect, disperse and / or scatter light emitted from the outside, specifically ultraviolet rays, To 15 parts by weight of the metal powder.

Preferred metal powders are aluminum powder, zinc powder, brass powder, stainless steel powder, copper powder, or a mixture of at least one selected from these.

As another specific embodiment, the crosslinked waterproofing composition according to the present invention may further comprise polyvinyl alcohol in order to enhance the initial adhesive strength. The polyvinyl alcohol not only improves the dispersibility of the components of the crosslinked waterproofing composition, The tacky property of the adhesive is also increased to improve the initial adhesive force, thereby reducing the defective rate such as floating phenomenon and warping.

The amount of the polyvinyl alcohol used is 2 to 10 parts by weight based on 100 parts by weight of the asphalt. When the amount of the polyvinyl alcohol is less than 2 parts by weight, the effect is insignificant. When the amount is more than 10 parts by weight, Weather resistance of the cross-linked waterproofing composition, and the like.

In another specific embodiment, the cross-linking waterproofing composition according to the present invention may further comprise magnesium silicate in an amount of 1 to 5 parts by weight based on 100 parts by weight of the asphalt to extend the life of the composition.

Since the magnesium silicate has excellent chemical resistance, chemical resistance and weathering resistance, if it is included in the cross-linking waterproofing composition, the life of the magnesium silicate is extended due to the above characteristics.

In another specific embodiment, the crosslinked waterproofing composition according to the present invention may further contain 0.1 to 3 parts by weight of welan gum on the basis of 100 parts by weight of the asphalt to prevent the separation of the materials depending on the specific gravity difference between the components of the composition. .

In another specific embodiment, the cross-linked waterproofing composition according to the present invention is used in an amount of 5 parts by weight per 100 parts by weight of asphalt to prevent the harmful components present on the surface to be adhered, To 15 parts by weight of dimethyl ammonium chloride.

In another specific embodiment, the crosslinked waterproofing composition according to the present invention may further contain 1 to 5 parts by weight of cocoa bean as 100 parts by weight of asphalt for the purpose of improving the dispersibility, plasticity and water retention of the composition, have.

In another specific embodiment, the crosslinked waterproofing composition according to the present invention may further contain sodium oleate in an amount of 1 to 5 parts by weight based on 100 parts by weight of asphalt to retard the initial reaction and to increase interfacial adhesion with the surface to be adhered.

In another specific embodiment, the crosslinked waterproofing composition according to the present invention may further comprise calcium pyrophosphate in order to maintain the initial working performance of the composition and to improve the compressive strength, the amount of which is 0.1 to 2 parts by weight based on 100 parts by weight of the asphalt The weight part is good.

In another specific embodiment, the cross-linking waterproofing agent composition according to the present invention may further comprise 1 to 5 parts by weight of zinc sulphate based on 100 parts by weight of asphalt, which is widely used as an alkali-imparting agent When zinc sulfate is included in the cross-linking waterproofing composition, it can restore the alkalinity of the application surface to which the cross-linking waterproofing composition is applied and prevent corrosion by generating an inactive film on the surface.

In another specific embodiment, the cross-linked waterproofing composition according to the present invention may further include carboxymethyl cellulose (CMC) in order to increase the viscosity and improve the adhesion. The amount of the carboxymethyl cellulose may be 1 to 3 parts by weight based on 100 parts by weight of the asphalt good.

In another specific embodiment, the crosslinked waterproofing composition according to the present invention may further comprise 5 to 15 parts by weight of diethyl vinyl acetate-vinyl acetate based on 100 parts by weight of the asphalt to improve the adhesion and durability of the composition.

In another specific embodiment, the cross-linked waterproofing composition containing SIS according to the present invention further comprises 1 to 5 parts by weight of sodipyl stearate based on 100 parts by weight of asphalt in order to ensure water permeability while preventing moisture penetration on the surface of the composition If the amount is less than 1 part by weight based on 100 parts by weight of the asphalt, the desired moisture permeation preventing function can not be obtained. If the amount exceeds 5 parts by weight, the strength of the composition is lowered.

In another specific embodiment, the crosslinked waterproofing composition according to the present invention is used in order to prevent the corrosion of the object to which the composition is applied due to deterioration of properties such as salting or neutralization, methyltrimethoxysilane), which is used in an amount of 1 to 5 parts by weight based on 100 parts by weight of the asphalt.

In another specific embodiment, the crosslinked waterproofing composition according to the present invention is prepared by mixing sodium hypochlorite with 0.1 to 2 wt% based on 100 parts by weight of asphalt to prevent corrosion of reinforcing bars embedded in the concrete such as bridges to which the waterproofing composition is applied. Can be included.

The sodium metasilicate may be a hydrate, but anhydrides obtained by heating and melting a mixture of quartz and sodium carbonate at a temperature of 1,000 DEG C to solidify the same may also be used.

In another specific embodiment, the crosslinked waterproofing composition according to the present invention reacts with calcium hydroxide produced by hydration reaction of cement in a concrete structure to produce calcium silicate hydrate, thereby making the texture of the cement compact and improving durability and adhesion strength. In order to prevent lifting, the kaolin powder may be further contained in an amount of 10 parts by weight based on 100 parts by weight of the asphalt. Preferably, the kaolin powder has a particle size of 1.0 to 3 mu m, and the kaolin powder is 3 parts by weight based on 100 parts by weight of the asphalt. If the amount is less than 10 parts by weight, the viscosity of the slurry is greatly increased, and the workability is decreased.

In another specific embodiment, the cross-linked water repellent composition according to the present invention comprises nickel chromium powder mixed with nickel powder and chromium powder in a weight ratio of 1: 1 in an amount of 3 parts by weight based on 100 parts by weight of asphalt to impart antimicrobial activity and anti- The nickel powder and the chromium powder may be used in an amount of less than 200 mesh, and the nickel powder and the chromium powder may be used in a weight ratio of 1: 1 in the slurry state of the cross-linked waterproofing agent composition containing SIS Nickel powder having a high specific gravity is mixed with chromium powder having a low specific gravity in a ratio of 1: 1 in order to prevent antibacterial action and rust-preventive action, and to prevent deterioration in the slurry state, and nickel Chromium powder is less than 3 parts by weight based on 100 parts by weight of the asphalt, the effect of imparting the functionality is weak, and when the amount of the chromium powder is more than 10 parts by weight If there is to give an even dispersion of the material decrease in the mixture of the slurry is not good.

In another specific embodiment, the cross-linking waterproofing composition comprising SIS according to the present invention may further include 10 to 30 parts by weight of a coal tar pitch based on 100 parts by weight of the asphalt to further improve waterproofness.

In another specific embodiment, the crosslinked waterproofing composition according to the present invention may further comprise 5 to 20 parts by weight of a bio-resin based on 100 parts by weight of the asphalt in order to suppress cracking and improve adhesion and durability.

Preferable bio-resins include those made of a rubidic alkyd resin, a rubidic urethane resin, a fatty acid ester of a rubidic urethane resin, a rubidic epoxy resin, a fatty acid ester of a rubidic epoxy resin, a biopolyethylene resin, L-polylactic acid or a mixture thereof It is recommended to use a rubidic alkyd resin.

Here, the rheological property refers to a resin containing a oil component such as a fatty acid in a molecule. When such a rheological resin is used, it is easy to control the dispersibility, the mechanical properties, the curability, and the film formability.

Specifically, the bio-resin is an oil extracted from a vegetable oil, for example, a plant or a plant seed, and is preferably selected from the group consisting of rice oil, palm oil, coconut oil, castor oil, grape seed oil, jojoba oil, safflower oil, Oil, olive seed oil, and mixed oil thereof.

At this time, the mixing ratio of the bio resin and the vegetable oil can be changed according to the user's choice, but it is recommended that the weight ratio of the bio resin and the vegetable oil is 1: 9 to 9: 1.

In another specific embodiment, the cross-linked waterproofing agent composition according to the present invention may further comprise 0.1 to 1 part by weight of sodium benzoate based on 100 parts by weight of asphalt to improve viscoelasticity, wherein 0.1 part by weight of sodium benzoate If the amount is less than 1 part by weight, the effect is insignificant, and if it is more than 1 part by weight, the amount is excessive and the physical properties may be lowered.

In another specific embodiment, the cross-linked waterproofing composition according to the present invention may further contain 0.1 to 2 parts by weight of dimer acid based on 100 parts by weight of asphalt to prevent peeling.

The dimeric acid is not limited in its origin and form, but it is preferably an amount of vegetable oil fatty acid, and the vegetable fatty acid may be composed of at least one selected from the group consisting of linoleic acid, stearic acid and palmitic acid.

In another specific embodiment, the crosslinked waterproofing composition according to the present invention may further contain 1 to 10 parts by weight of tetraethylenepentamine (TEPA) based on 100 parts by weight of asphalt for viscosity control and strength enhancement, If the amount of the pentamine is less than 1 part by weight, the effect is insignificant. If the amount is more than 10 parts by weight, the amount thereof is excessive, which may adversely affect the physical properties of the composition.

In another specific embodiment, the cross-linked water repellent composition according to the present invention may further comprise 1 to 15 parts by weight of a water-swellable material, which is an absorbent material that expands by moisture for controlling moisture, based on 100 parts by weight of the asphalt.

Preferred water swellable materials are gelled by reacting esterified polysaccharides with polyamines, layered silicate minerals of the smectite family, layered silicate minerals of the smectite family, more preferably montmorillonite, beidellite, nontronite, , Saponite, hectorite or mixtures thereof may be used.

In another embodiment, the crosslinked waterproofing composition according to the present invention may further comprise 1 to 10 parts by weight of acrylonitrile based on 100 parts by weight of the asphalt in order to improve the durability and alkali resistance of the composition. When the amount is less than 1 part by weight The effect of improving durability and alkali resistance is insignificant. When the amount is more than 10 parts by weight, viscosity increases and workability can be lowered.

In another embodiment, the cross-linked water repellent composition according to the present invention may further include starch phosphate ester, which is a kind of anion-modified starch, in order to improve water absorption, permeability and moisturizing property. 0.1 to 2 parts by weight is preferable.

In another specific embodiment, the crosslinked waterproofing composition according to the present invention further comprises 1 to 5 parts by weight of a modified silane silicate compound based on 100 parts by weight of asphalt to improve crack resistance, water resistance, abrasion resistance and / or adhesion resistance can do.

Here, the modified silane silicate compound acts as a crosslinking agent to form organic or inorganic polymerization reactivity, thereby enhancing adhesiveness in response to a substrate such as concrete or metal. The modified silane silicate compound can be prepared by mixing silicate and silane The preferred silicate may be any silicate commonly used in the art, but more preferably an alkali silicate, particularly preferably a lithium silicate, a pure potassium silicate, a pre-treated potassium silicate, or at least a It is advisable to use one or more mixtures. However, the present invention is not limited thereto.

The silane may be any silane commonly used in the art, but it is preferably an aminosilane, a vinylsilane, an epoxysilane, a methacrylsilane, a sulfur, an alkylsilane, a phenylsilane, a vinyltrimethoxy Silane, tetraethoxysilane (TEOS), or a mixture of at least one selected from these. However, the present invention is not limited thereto.

The method for preparing the modified silane silicate compound by mixing the silicate and the silane is not particularly limited but preferably 0.1 to 2 parts by weight of silane is added to the silicate at a temperature ranging from 95 to 110 ° C And stirring for 1 to 2 hours at a speed of 200 to 400 rpm.

In another specific embodiment, the crosslinked waterproofing agent composition according to the present invention may further comprise 1 to 5 parts by weight of sorbitan monooleate based on 100 parts by weight of the asphalt for the purpose of enhancing the strength and water resistance of the crosslinked waterproofing composition.

In another specific embodiment, the crosslinked waterproofing composition according to the present invention is prepared by mixing lithium carbonate (Li ₂ CO ₃ ) in an amount of 0.1 to 2 parts by weight based on 100 parts by weight of asphalt to promote curing of the composition and improve compressive strength and flexural strength .

In another embodiment, the crosslinked waterproofing composition according to the present invention comprises a mixture of toluene and sorghum mixed at a weight ratio of toluene and chromogein of 1: 1 in an amount of 1 to 5 parts by weight based on 100 parts by weight of the asphalt to maintain the initial adhesive strength of the crosslinked waterproofing composition. And may further include parts by weight.

In another specific embodiment, the cross-linked waterproofing composition according to the present invention may further comprise 1 to 3 parts by weight of soda ash on the basis of 100 parts by weight of the asphalt in order to improve the water resistance of the concrete structure to which the cross- .

As another specific embodiment, the crosslinked waterproofing composition according to the present invention comprises polymethylsilsesquioxane in an amount of 1 part by weight per 100 parts by weight of the asphalt to improve the adhesion of the composition and to fill the voids of the surface to which the crosslinked waterproofing composition is applied. To 5 parts by weight.

In another specific embodiment, the crosslinked waterproofing composition according to the present invention is prepared by blending polyvinyl pyrrolidone with 5 parts by weight of asphalt on the basis of 100 parts by weight of an asphalt in order to stably disperse the composition and to absorb and swell the water to improve the stability of the composition. To 20 parts by weight.

In another specific embodiment, the crosslinked waterproofing composition according to the present invention is prepared by adding sodium rosinate to 1 to 3 parts by weight based on 100 parts by weight of the asphalt so as to improve the dispersibility of the crosslinked waterproofing composition and prevent the re- .

As another specific embodiment, the crosslinked waterproofing agent composition according to the present invention may further comprise crosslinked polyacrylate salt in an amount of 1 to 10 parts by weight based on 100 parts by weight of the asphalt, wherein the crosslinked polyacrylate salt is applied The crosslinked polyacrylate salt can be used as a polymer of an acrylate salt and a polymer of an acrylate salt, (C ₃ H ₄ O ₂ .C ₃ H ₃ O ₂ Na) x as a cross-linking agent and is composed of a polymer of acrylic acid and sodium acrylate containing acrylic acid. The cross-linked polyacrylate salt formed is a three-dimensional network structure through cross-linking between polymer chains, When a cross-linked polyacrylate salt in accordance with the introduction of the group is used to fill the internal pore expansion upon water penetration thereby preventing penetration of moisture and increase durability.

In another specific embodiment, the crosslinked waterproofing composition according to the present invention may further comprise 1 to 5 parts by weight of sodium alginate based on 100 parts by weight of the asphalt for the purpose of enhancing the viscosity and enhancing the adhesion of the crosslinked waterproofing composition. ₆ H ₈ O ₆ ) n, which has a carboxyl group and can be made by soda ash treatment of sea tangle. Since sodium alginate itself has a viscosity, if it is included in a cross-linking waterproofing composition, viscosity increase and adhesion enhancement When the amount of the asphalt is less than 1 part by weight based on 100 parts by weight of the asphalt, the hydrophobicity decreases. When the amount of the asphalt is more than 5 parts by weight, the viscosity increases excessively.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings, in which: FIG. 1 is a cross-sectional view of a cross-linked waterproofing composition according to the present invention;

The method of constructing the cross-linked water repellent composition according to the present invention comprises the steps of arranging a construction surface for constructing a cross-linked water repellent composition; And

After completion of the aeration step, 0.1 to 50 parts by weight of styrene isoprene styrene, 0.1 to 40 parts by weight of petroleum resin, 5 to 30 parts by weight of methyl methacrylate, 5 to 30 parts by weight of silane compound, 5 to 30 parts by weight of an emulsifier, 5 to 20 parts by weight of octylphenol ethoxylate, 1 to 10 parts by weight of caustic soda, 3 to 20 parts by weight of nano-ceramic particles, 5 to 20 parts by weight of charcoal powder, 5 to 30 parts by weight of anti- , 3 to 10 parts by weight of an antioxidant, and 1 to 20 parts by weight of an adhesion promoter, in an amount of 0.1 to 30 mm.

Here, the cleaning step may be any conventional cleaning method such as removing contaminants on the surface of the work or smoothing the work surface.

Specifically, the method of applying the crosslinking waterproofing composition composition further includes a step of applying a fiber sheet to apply a breathable mesh-like structure fiber sheet to prevent floating or swelling of the coating film between the cleaning step and the application step of the crosslinking waterproofing composition It is preferable that the fiber sheet is polyester fiber, and that the fiber interval is 10 to 20 mm, and if the interval between fibers is 20 mm or more, the problem of lifting of the coating film may occur as the air permeability decreases.

Hereinafter, the present invention will be described in detail by way of examples. However, the following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[Example 1]

100 g of an asphalt mixture consisting of a mixture of 75 g of straight asphalt with an intrusion degree of 30 and 25 g of natural asphalt consisting of trinidad lake asphalt, 25 g of styrene isoprene styrene, 25 g of aliphatic with a melting point of about 120 캜, a penetration of about 1 dmm, 20 g of petroleum resin, 20 g of methyl methacrylate, 20 g of perfluoromethoxysilane, 15 g of lignin sulfonic acid alkali metal salt, 25 g of octylphenol ethoxylate, 5 g of caustic soda, 12 g of silicon carbide having an average particle diameter of 400 nm, Charcoal powder 12g. 15 g of a polyphosphoric acid type peeling inhibitor having a specific gravity of 1.0 or more and a viscosity at 60 캜 of 110 cPs, 6 g of 2.2-methylene bis (4-methyl-6-t-butylphenol) and 10 g of hydroxyethyl acryloyl phosphate To prepare a crosslinked waterproofing composition.

[Example 2]

The procedure of Example 1 was repeated, except that 10 g of cellulose fibers were further added.

[Example 3]

The procedure of Example 1 was repeated except that 15 g of terephthalic acid metal salt was further added.

[Example 4]

The procedure of Example 1 was repeated except that 3 g of isothiazolin derivative was further added.

[Example 5]

The procedure of Example 1 was repeated except that 12 g of aluminum powder was added.

[Example 6]

The procedure of Example 1 was repeated, except that 7 g of polyvinyl alcohol was further added.

[Example 7]

The procedure of Example 1 was repeated, except that 3 g of magnesium silicate was further added.

[Example 8]

The procedure of Example 1 was repeated, except that 2 g of wetlan gum was further added.

[Example 9]

The procedure of Example 1 was repeated, except that 8 g of dimethyl ammonium chloride was further added.

[Example 10]

The procedure of Example 1 was repeated, except that 2 g of cocobetaine was further added.

[Example 11]

The procedure of Example 1 was repeated, except that 3 g of sodium oleate was further added.

[Example 12]

The procedure of Example 1 was repeated, except that 1 g of calcium pyrophosphate was further added.

[Example 13]

The procedure of Example 1 was repeated, except that 3 g of zinc sulfate was further added.

[Example 14]

The same procedure as in Example 1 was carried out except that 2 g of carboxymethyl cellulose was further added.

[Example 15]

The procedure of Example 1 was repeated, except that 10 g of vinyl acetate-diethyl maleate was further added.

[Example 16]

The procedure of Example 1 was repeated, except that 3 g of sodium dodecyl stearate was further added.

[Example 17]

The procedure of Example 1 was repeated, except that 3 g of methyltrimethoxysilane was further added.

[Example 18]

The procedure of Example 1 was repeated, except that 1 g of sodium hypochlorite was further added.

[Example 19]

The procedure of Example 1 was repeated except that 7 g of kaolin powder was added.

[Example 20]

7 g of nickel chromium powder mixed with nickel powder and chromium powder in a weight ratio of 1: 1 was further added in the same manner as in Example 1.

[Example 21]

The procedure of Example 1 was repeated, except that 20 g of coal tar pitch was added.

[Example 22]

Was carried out in the same manner as in Example 1 except that 10 g of a rubidic alkyd resin was further added.

[Example 23]

The procedure of Example 1 was repeated, except that 0.5 g of sodium benzoate was further added.

[Example 24]

The procedure of Example 1 was repeated, except that 1 g of dimeric acid was further added.

[Example 25]

The procedure of Example 1 was repeated, except that 5 g of tetraethylene pentamine was further added.

[Example 26]

The same procedure as in Example 1 was carried out except that 10 g of veridellite was further added.

[Example 27]

The procedure of Example 1 was repeated, except that 5 g of acrylonitrile was further added.

[Example 28]

The procedure of Example 1 was repeated, except that 1 g of starch phosphate ester was further added.

[Example 29]

2 g of a modified silane silicate composite prepared by mixing 100 g of lithium silicate and 1 g of vinyltrimethoxysilane and stirring at a temperature of 97 ° C. and 300 rpm for 1.5 hours was further added Respectively.

[Example 30]

The procedure of Example 1 was repeated, except that 2 g of sorbitan monooleate was further added.

[Example 31]

The procedure of Example 1 was repeated, except that 1 g of lithium carbonate was further added.

[Example 32]

2 g of a toluene-sorbitol mixture, which was prepared in the same manner as in Example 1 and mixed at a weight ratio of toluene and quinoline of 1: 1, was further added.

[Example 33]

The procedure of Example 1 was repeated, except that 2 g of sodium kosane was further added.

[Example 34]

The procedure of Example 1 was repeated, except that 4 g of polymethylsilsesquioxane was further added.

[Example 35]

The procedure of Example 1 was repeated, except that 7 g of polyvinylpyrrolidone was further added.

[Example 36]

The procedure of Example 1 was repeated, except that 2 g of sodium rosinate was further added.

[Example 37]

The procedure of Example 1 was repeated except that 3 g of crosslinked polyacrylate salt was further added.

[Example 38]

The procedure of Example 1 was repeated, except that 3 g of sodium alginate was further added.

[Example 39]

The procedure of Example 1 was repeated, except that all of Examples 2 to 38 were added.

[Experiment]

The surface of the concrete having a width of 50 cm in width / length was cleaned and cleaned, and then the cross-linked waterproofing composition prepared according to the Example was separately applied to a thickness of about 15 mm.

Then, the adhesiveness, waterproof property, dry shrinkage and the like were measured and shown in Table 1.

Waterproof performance (%) Attachment Dry shrinkage (u) Example 1 99 good 163 Example 2 99 good 168 Example 3 99 good 161 Example 4 99 good 168 Example 5 99 good 164 Example 6 99 good 169 Example 7 99 good 170 Example 8 99 good 171 Example 9 99 good 167 Example 10 99 good 166 Example 11 99 good 165 Example 12 99 good 166 Example 13 99 good 169 Example 14 99 good 165 Example 15 99 good 169 Example 16 98 good 167 Example 17 99 good 161 Example 18 99 good 162 Example 19 99 good 164 Example 20 99 good 166 Example 21 99 good 166 Example 22 99 good 167 Example 23 99 good 164 Example 24 99 good 167 Example 25 99 good 164 Example 26 99 good 165 Example 27 99 good 168 Example 28 99 good 169 Example 29 99 good 167 Example 30 99 good 165 Example 31 99 good 167 Example 32 99 good 166 Example 33 99 good 167 Example 34 99 good 165 Example 35 99 good 167 Example 36 98 good 167 Example 37 99 good 168 Example 38 99 good 167 Example 39 99 good 164

As shown in Table 1, the waterproofness, adhesion and drying shrinkage of the crosslinked waterproofing composition prepared according to Examples 1 to 39 were good.

As described above, those skilled in the art will understand that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the embodiments described above are all illustrative and not restrictive. The scope of the present invention should be construed as being included in the scope of the present invention without departing from the scope of the present invention.

Claims (5)

On the basis of 100 parts by weight of asphalt,
0.1 to 50 parts by weight of styrene isoprene styrene;
0.1 to 40 parts by weight of an aliphatic C-5 petroleum resin having a melting temperature of 120 캜, an invasion degree of 1 dmm and a viscosity at 140 캜 of 150 cps;
5 to 30 parts by weight of methyl methacrylate;
5 to 30 parts by weight of perfluoromethoxy silane;
5 to 30 parts by weight of an anionic emulsifier;
5 to 20 parts by weight of octylphenol ethoxylate;
1 to 10 parts by weight of caustic soda;
3 to 20 parts by weight of nano-ceramic particles;
5 to 20 parts by weight of charcoal powder;
5 to 30 parts by weight of an anti-peeling agent;
3 to 10 parts by weight of an antioxidant; And
1 to 20 parts by weight of an adhesion promoter,
Further comprising 0.1 to 3 parts by weight, based on 100 parts by weight of asphalt,
Further comprising 1 to 5 parts by weight of coco betaine based on 100 parts by weight of asphalt,
Further comprising 1 to 5 parts by weight of sodium oleate based on 100 parts by weight of the asphalt,
Further comprising 0.1 to 2 parts by weight of calcium pyrophosphate based on 100 parts by weight of the asphalt,
Further comprising 5 to 15 parts by weight of vinyl acetate-diethyl maleate based on 100 parts by weight of the asphalt,
Further comprising 0.1 to 2 parts by weight of sodium hypochlorite based on 100 parts by weight of the asphalt,
Further comprising kaolin powder in an amount of 3 to 10 parts by weight based on 100 parts by weight of the asphalt,
Further comprising 10 to 30 parts by weight of a coal tar pitch based on 100 parts by weight of the asphalt,
Further comprising dimer acid in an amount of 0.1 to 2 parts by weight based on 100 parts by weight of the asphalt,
Further comprising sorbitan monooleic acid ester in an amount of 1 to 5 parts by weight based on 100 parts by weight of the asphalt,
Further comprising lithium carbonate in an amount of 0.1 to 2 parts by weight based on 100 parts by weight of the asphalt,
Further comprising 1 to 5 parts by weight based on 100 parts by weight of asphalt, of a mixture of toluene and sorbine mixed at a weight ratio of toluene and quinoline of 1: 1,
Wherein the composition further comprises 1 to 3 parts by weight based on 100 parts by weight of the asphalt.
delete delete A cleaning step of cleaning a surface to be applied to the composition of the antifouling composition; And
Wherein the aliphatic C-5 petroleum resin having a melting point of 120 ° C., an invasion degree of 1 dmm, and a viscosity at 140 ° C. of 150 cps is added in an amount of from 0.1 to 50 parts by weight based on 100 parts by weight of the asphalt, 5 to 30 parts by weight of methyl methacrylate, 5 to 30 parts by weight of perfluoromethoxysilane, 5 to 30 parts by weight of an anionic emulsifier, 5 to 20 parts by weight of octylphenol ethoxylate, 1 to 10 parts by weight of caustic soda 3 to 20 parts by weight of a nano-ceramic particle, 5 to 20 parts by weight of a charcoal powder, 5 to 30 parts by weight of an anti-peeling agent, 3 to 10 parts by weight of an antioxidant, and 1 to 20 parts by weight of an adhesion promoter, Further comprising 0.1 to 3 parts by weight of wetlan gum on the basis of 100 parts by weight of asphalt, further comprising 1 to 5 parts by weight of coco betaine based on 100 parts by weight of asphalt, wherein sodium oleate is mixed with 1 part by weight of asphalt Further comprising 5 to 15 parts by weight of diethyl vinyl acetate-100 parts by weight of asphalt, wherein the amount of calcium pyrophosphate is 0.1 to 2 parts by weight based on 100 parts by weight of asphalt, Further comprising sodium hypochlorite in an amount of 0.1 to 2 parts by weight based on 100 parts by weight of asphalt and further comprising kaolin powder in an amount of 3 to 10 parts by weight based on 100 parts by weight of asphalt and 10 to 30 parts by weight of kaolin pitch based on 100 parts by weight of asphalt Further comprising dimer acid in an amount of 0.1 to 2 parts by weight based on 100 parts by weight of the asphalt and further containing 1 to 5 parts by weight of sorbitan monooleate in an amount of 1 to 5 parts by weight of the asphalt, 0.1 to 2 parts by weight based on 100 parts by weight of a toluene-chrominized mixture further comprising toluene and quinoline in a weight ratio of 1: 1 1 to 5 parts by weight based on 100 parts by weight of asphalt and 1 to 3 parts by weight of soda ash based on 100 parts by weight of asphalt is applied in an amount of 0.1 to 30 mm, Wherein the cross-linking agent is a cross-linking agent.

5. The method of claim 4,
Further comprising a fiber sheet applying step of applying a fiber sheet having a mesh structure between the cleaning step and the step of applying the cross-linked water repellent composition.