KR20080095453A - Exposure rubber asphalt waterproofing material composition of water soluble anionic type and construction method thereof - Google Patents

Abstract

A water-soluble anionic exposure rubber asphalt waterproofing composition is provided to be harmless to the human body by not using an existing solvent or organic volatile solvent and to improve strength, elongation and waterproofing property, by manufacturing an environment-friendly waterproof agent through an anionic water-soluble asphalt waterproofing agent by an anionic liquid chloroprene synthetic rubber. A water-soluble anionic exposure rubber asphalt waterproofing composition comprises an anionic water-soluble asphalt waterproofing composition polymerized with (a-1) 40-70 weight% of an SBS(styrene butadiene styrene) modified asphalt, (a-2) 5-25 weight% of a polychloroprene synthetic rubber, (a-3) 0.1-20 weight% of acrylic emulsion, (a-4) 0.1-5 weight% of a polystyrene resin or an ABS(Acrylonitrile Butadiene Styrene Copolymer) resin or a propylene resin, (a-5) 0.2-10 weight% of an anionic emulsifying and dispersing agent, (a-6) 1-25 weight% of The filler(the mineral-TiO2(titanium dioxide), diatomite, cement, carbon filler), and (a-7) 10-50 weight% of water; and a curing agent(water-soluble cationic modified asphalt) mixed with (b-1) 0-80 weight% of an SBS(styrene butadiene styrene) modified asphalt, (b-2) 0-20 weight% of chloroprene or SBR, (b-3) 0-5 weight% of a cationic emulsifying and dispersing agent, (b-4) 5-15 weight% of calcium chloride, and (b-5) 30-90 weight% of water.

Description

Exposure Rubber Asphalt Waterproofing material Composition of Water Soluble Anionic Type and Construction Method

The present invention relates to a water-soluble anionic-based rubber asphalt waterproofing agent composition and a construction method thereof, and more particularly to anionic (anionic) chloroprene synthetic rubber emulsion and SBS (Styrene Butadiene Styrene Copolymer; styrene butadiene styrene coco) Polymer) It relates to a water-soluble anionic-based exposed rubber asphalt waterproofing agent composition which is mixed at high temperature by melting modified asphalt (or ordinary asphalt), mixed with anionic emulsifier and a predetermined amount of water, and a method for constructing the composition.

In general, although asphalt is a waterproofing agent having excellent waterproofness and low cost, the water-soluble asphalt coating waterproofing agent has been mainly made of a waterproofing agent containing SBR (Styrene Butadiene Rubber) synthetic rubber. The water-soluble asphalt waterproofing agent produced in this way was damaged due to its poor heat resistance, and the molding of the waterproofing agent was destroyed when exposed to sunlight in the summer. The weather resistance was also weak, which was not applicable to the waterproofing construction for exposure. It has been used in a limited way. In addition, there is a lack of cold resistance, so in winter when the temperature decreases, there is a problem that the water-free molding is freezing, such as having a lot of supplements as a waterproofing agent.

Conventionally, as a water-soluble asphalt waterproofing agent, SBR-based general synthetic rubber or synthetic rubber resin was produced by emulsion pressure reaction using a cationic emulsifier. Not only is it environmentally friendly, but SBR has poor weather resistance, strength, hardness and heat resistance. There is a problem that the physical properties are poor to use as a weak waterproof exposure agent.

The present invention to solve the above problems, by producing an environmentally friendly waterproofing agent through the anionic water-soluble asphalt waterproofing agent by anionic liquid chloroprene synthetic rubber, does not use the conventional solvents or organic volatile solvents do not harm the human body at all An object is to provide a water-soluble anionic-based rubber asphalt waterproofing agent composition by environmental Anionic liquid chloroprene synthetic rubber.

In addition, the present invention significantly improved the strength and elongation waterproofing, waterproof waterproof construction for outdoor exposure such as rooftop waterproofing of various buildings, outer walls of tunnels, artificial ponds, etc., which was considered impossible with a waterproofing agent made of asphalt. Another object of the present invention is to provide a rapid freezing method for exhibiting sufficient waterproofness even for waterproofing of vertical walls such as vertical walls, exterior walls, tunnel exteriors, silo exterior walls, and the like.

As a means for achieving the above object, the water-soluble anionic-based rubber asphalt waterproofing agent composition according to the present invention, a-1) 40-70% by weight of SBS (styrene butadiene styrene) modified asphalt, a-2) 5- 25% by weight of polychloroprene synthetic rubber, a-3) 0.1-20% by weight of acrylic emulsion, a-4) 0.1-15% by weight of polystyrene resin or ABS resin (Acrylonitrile Butadiene Styrene Copolymer) or propylene resin, a-5) 0.2-10% by weight of an anionic emulsifier and a-6) 1-25% by weight of filler (mineral-TiO 2 (titanium dioxide), diatomaceous earth, cement, carbon filler), and a-7) water-soluble anionic-based rubber asphalt waterproofing agent made by polymerizing 10-50% by weight of water; b-1) 50-80% by weight of SBS (styrene butadiene styrene) modified asphalt materials, b-2) 0-20% by weight of chloroprene or SBR, b-3) 0-5% by weight of cationic emulsifier And b-4) 5-15% by weight of calcium chloride and b-5) 30-90% by weight of water with a curing agent (cationic water-soluble modified asphalt).

In addition, the present invention, the anionic water-soluble asphalt waterproofing agent prepared by the anionic-based liquid chloroprene synthetic rubber prepared above, and the curing agent (cationic water-soluble modified asphalt) is pumped by each pump in a ratio of 10: 1% by weight The present invention provides a method for constructing a water-soluble anionic-based rubber asphalt waterproofing agent, which is spray-sprayed and rapidly cured.

In addition, the present invention, a-1) 5-40% by weight of SBS (styrene butadiene styrene) modified asphalt, a-2) 1-25% by weight of polychloroprene synthetic rubber, SBR (Styrene Butadiene Rubber) -based synthesis Single or a mixture of rubber, fluorine rubber, EPDM (Ethylene Propylene Terpolymers) synthetic rubber, acrylic synthetic rubber, a-3) 5-50% by weight of acrylic emulsion resin, a-4) 0.1-10 A weight of polystyrene resin or propylene resin and EPDM (Ethylene Propylene Terpolymers) alone or mixed, a-5) 0.2-10% by weight of anionic emulsifier and a-6) 0.1-30 Anionic water-soluble asphalt waterproofing agent mixed with 1% by weight of EVA (Ethylene Vinyl Acetate) resin, and 1-7% by weight of water; b-1) A water-soluble anionic-exposed rubber asphalt waterproofing composition of a one-part type powder containing 100% by weight of a filler (mineral-TiO 2 (titanium dioxide), diatomaceous earth, cement, carbon filler, rubber powder, ceramic, and silica sand) It is characterized by providing a waterproofing agent composition to mix and apply.

Hereinafter, a water-soluble anionic-based rubber asphalt waterproofing agent composition and a construction method thereof according to a preferred embodiment of the present invention will be described in detail.

First, the present invention is polymerized and impregnated in the process of emulsifying SBS modified asphalt with high-temperature water-soluble asphalt in the chloroprene synthetic rubber resin dissolved in anionic in the process for the production of anionic (anionic) water-soluble asphalt waterproofing agent (or Low temperature polymerization), acrylic resins, polystyrene resins, ABS resins and carbon black etc. are fused at high temperatures to improve heat resistance, weather resistance, oil resistance, durability, flame resistance and strength and hardness. It is to prepare a water-soluble rubber coating asphalt waterproofing agent.

In addition, in the present invention, the two-component nozzle spraying method using the rapid curing type waterproofing agent is a method that does not flow down due to rapid curing, and the thickness of the surface to be adhered when waterproofing the vertical walls of various structures or the outer walls of various underground buildings. It can be thick enough to provide a construction method for exposed waterproof.

SBS (Styrene Butadiene Styrene) modified asphalt is mainly applied as a main ingredient of the water-soluble anionic rubber asphalt waterproofing agent composition by the anionic liquid chloroprene synthetic rubber of the present invention.

SBS (Styrene Butadiene Styrene) modified asphalt as the main raw material of the present invention exhibits excellent properties such as gloss, electrical properties and moldability of styrene, and impact resistance of butadiene. In addition, SBS modified asphalt has great advantages such as securing flatness, climatic environment resistance, protection and adaptability of bridge structures, low temperature and fatigue resistance, low plastic deformation resistance, and delaying aging. In other words, SBS modified asphalt has excellent climate environmental resistance, strength and cold resistance, and has high durability, which is twice as long as ordinary asphalt when applied to roads. In addition, there is an advantage that the flow resistance is particularly strong in plastic deformation. The mixing ratio of the SBS modified asphalt is about 40-70% by weight.

Anionic liquid polychloroprene synthetic rubber was mixed in the SBS modified asphalt to be adjusted according to the situation up to 5-25% by weight. As polychloroprene, CR (Chloroprene Rubber) is a polymer of chloroprene (2-chlorobutadiene), and unlike general rubber, it has weather resistance, chemical resistance and flame retardancy. In addition, it has a feature not found in general rubber such as gas permeability and strong adhesive strength when made of rubber paste. The disadvantage is that the price is considerably higher than that of general synthetic rubber such as polybutadiene (BR) and styrene butadiene rubber (SBR). Chloroprene rubber (CR) is a neoprene brand name of DuPont, which CR is used as a pronoun. Particular attention should be paid to low temperatures, especially when sealing gases.

Next, the acrylic emulsion controls the amount of incorporation up to 0.1-20% by weight. The colorless product of acrylic resin is the most colorless and high transparency among existing synthetic resins, and it is light and strong. The specific gravity is 1.9, about 1/2 of the inorganic glass, and the toughness is comparable to that of the inorganic tempered glass, and particularly hot, it is stronger against breakage and impact than the inorganic tempered glass. In addition, the weather resistance is very high, and the biggest characteristic of acrylic resin is that it is very resistant to outdoor natural environment. Although there are no synthetic resins with excellent weather resistance, most of them are used when they are used outdoors and are left in daylight or rainy weather, and they change to a completely different form from the initial state of use. In the case of acrylic resins, their appearance changes even after being left outdoors for a long time. Of course, the physical and mechanical properties hardly change.

The incorporation of acrylic emulsions can thus compensate for the weatherability of water soluble asphalt waterproofing agents. In addition, moldability is good and discoloration does not occur, and the molding lot is less likely to fade. Acrylic resins contain harmless substances that are not toxic to humans and livestock. They are widely used in dentures, dental fillers, bills, and bones used in the human body as well as tableware. It's environmental.

And the emulsion dispersant is mixed in about 0.2-10% by weight. Emulsifying and dispersing agent is an anionic emulsifier capable of controlling the curing time as an elastomer. Oily asphalt and aqueous water are combined by an emulsifier, and the asphalt is made into fine asphalt particles by a mechanism called a colloid mill (MOLLOID MILL) and mixed with the emulsifier solution in the colloid mill.

In addition to the polychloroprene and the acrylic emulsion mixed in the SBS-modified asphalt, the emulsifying dispersant, 0.1-5% by weight of polystyrene resin or ABS resin or polypropylene resin may be mixed and 10-50% by weight of water is mixed. The addition of water is intended to improve the workability by controlling the consistency of the mixture.

In addition, when glycerin compound and alkali resin are added to asphalt as an activity promoting agent and 1-2 wt% is added to the weight ratio of asphalt, the emulsification state is good and the physical properties of the asphalt can be improved to increase stability and control the reaction time of asphalt. .

In addition, 1-25% by weight of filler (mineral-TiO 2 (titanium dioxide), diatomaceous earth, cement, carbon filler) is mixed.

In addition, other additives may be added when the curing time is required or when an increase in strength or tensile strength is required depending on site conditions.

In addition, as the additive of the anionic water-based asphalt waterproofing agent, natural rubber, EVA (Ethylene Vinyl Acetate), SBR (Styrene Butadiene Rubber) synthetic rubber, fluorine rubber, EPDM (Ethylene Propylene Terpolymers) synthetic rubber, or the like The composition may be prepared by mixing one or more acrylic synthetic rubbers singly or in combination.

In addition, when the anionic water-based asphalt waterproofing agent is applied to the waterproofing work to be sprayed alone, only an aqueous solution of calcium chloride of about 15% may be used as a curing agent to cure and solidify the anionic waterproofing agent.

Next, the production of a curing agent (cation-based water-soluble modified asphalt) can be used by mixing water and calcium chloride and cation-based asphalt as the main material. Its content is 0-80% by weight of SBS modified asphalt, 0-20% by weight of chloroprene or SBR, 0-5% by weight of cationic emulsifying dispersant, 5-15% by weight of calcium chloride, and 30-90% by weight % Water is incorporated.

As described above, the water-soluble anionic rubber asphalt waterproof composition using anionic liquid chloroprene synthetic rubber is used as the main ingredient, and a curing agent (cationic water-soluble modified asphalt) mainly composed of calcium chloride liquid is used as a curing agent. The two-component molds combine with each other to form a water-resistant layer in a few seconds (1-10 seconds).

Therefore, the mixing ratios of the water-soluble anionic rubber asphalt waterproofing agent and the hardening agent (cationic water-soluble modified asphalt) by anionic liquid chloroprene synthetic rubber as the main materials are shown in Table 1 below.

Table 1

division subject Hardener Compounding ratio (% by weight) 10 One Exterior Dark brown liquid Dark brown liquid Viscosity (20C) 1,000 to 2,000 cps 500 to 1500 cps importance 1.0 to 1.2 1.0 to 1.2

In addition, the pot life and the complete curing time of the water-soluble anionic rubber asphalt waterproofing agent by the anionic liquid chloroprene synthetic rubber and a curing agent (cationic water-soluble modified asphalt) are shown in Table 2 below.

Table 2

division Pot life (seconds) Curing time (hours) Solid content Cured State data 1 to 10 48 70 to 80% High Elastic Hardener

Therefore, it hardens the house very quickly and realizes higher strength properties, weather resistance, heat resistance, cold resistance, high strength, and high adhesive strength than existing asphalt waterproofing agents, so that waterproofing of civil engineering tunnels, roofs of buildings, outer walls, various tanks, etc. It shows a very good waterproof effect for waterproof construction. Moreover, the price is low and economical construction is possible.

As described above, the feed process for pumping the water-soluble anionic rubber asphalt waterproofing agent with anionic liquid chloroprene synthetic rubber, the curing agent (cationic water-soluble modified asphalt) at a ratio of 10: 1% by weight using a pump, and the injection pressure Using the spray nozzle suitable for the adjusting device and ratio, pumping process and spraying process by spraying directly while maintaining a certain ratio on the waterproof surface of the building or wood casting are hardened within a few seconds. After complete hardening, it is possible to form a strong asphalt waterproof layer that is very tough and elastic on the waterproof surface.

In the feeding process for feeding the water-soluble anionic rubber asphalt waterproofing agent and the curing agent (cationic water-soluble modified asphalt) by the ratio of 10: 1% by weight of the anionic liquid chloroprene synthetic rubber, it is preferable that the pump is divided and pumped by a special pump. Do.

Furthermore, each waterproofing agent pumped through the pump is sprayed to the place to be waterproofed through the respective spray nozzles, wherein the water-soluble anionic rubber asphalt waterproofing agent by the anionic liquid chloroprene synthetic rubber injected and a curing agent (cationic water-soluble modified asphalt) ) Is a thick and strong waterproof layer at a time, even in the vertical plane can be made at a time, and because it is water-soluble, it is cured within a few seconds even in an environment-friendly and wet place, so a very tough and high-strength asphalt waterproof layer is formed.

In addition, as the additive of the curing agent (cationic water-soluble modified asphalt), the mixing ratio of the aqueous solution mixed with calcium chloride and water and the cationic water-soluble modified asphalt oil can be controlled at the construction site, thereby controlling the pot life and construction method of the waterproofing agent. Could be.

In addition, when applying the curing agent (cationic water-based modified asphalt) alone to waterproof construction, in order to harden and solidify the curing agent (cationic water-based modified asphalt), about 15% of sodium hydroxide aqueous solution and aqueous sodium silicate solution are used. A filler and diatomaceous earth can also be mixed and used.

On the other hand, it can be seen that the physical properties according to the test of the chloroprene-based water-soluble anionic rubber asphalt waterproofing agent composition of the present invention is shown in Table 3 below.

Table 3

division Salt Spray Test Tensile Strength (N / ㎠) Adhesive strength (N / ㎠) Tear strength (N / ㎠) data clear 70.8 90 57.6

Furthermore, as another embodiment of the present invention, 5-40% by weight of SBS (styrene butadiene styrene) modified asphalt, 1-25% by weight of polychloroprene synthetic rubber, SBR (Styrene Butadiene Rubber) synthetic rubber, fluorine rubber, One or more of EPDM (Ethylene Propylene Terpolymers) synthetic rubber and acrylic synthetic rubber alone, 5-50% by weight of acrylic emulsion resin, 0.1-10% by weight of polystyrene or propylene resin, and EPDM (Ethylene Propylene) Or a mixture of terpolymers alone, 0.2-10% by weight of anionic emulsion dispersant, 0.1-30% by weight of ethylene vinyl acetate (EVA) resin, and 1-30% by weight of water. A one-component type water-soluble anionic-based exposure powder containing 100% by weight of an anionic water-based asphalt waterproofing agent mixed with a filler (mineral-TiO 2 (titanium dioxide), diatomaceous earth, cement, carbon filler, rubber powder, ceramic, silica sand) Go Asphalt waterproofing agent composition will be applied in combination.

While the invention has been shown and described in connection with specific embodiments thereof, it is well known in the art that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the claims. Anyone who owns it can easily find out.

As described above, the water-soluble anionic rubber asphalt waterproofing agent and the hardening agent (cationic water-soluble modified asphalt) by anionic liquid chloroprene synthetic rubber as the subject of the present invention are respectively pumped at a ratio of 10: 1% by weight using an independent pump. By spraying the water-repellent supplied through the pump with spray nozzles having a spray nozzle for each ratio, it is sprayed on the waterproofing part of the vertical surface or the concrete part of the concrete structure in a humid area to harden the housework within seconds. It is effective in forming a waterproof layer with strong, thick, high adhesion without falling down, seamless, and even in a vertical plane.

In addition, after the complete curing of the waterproofing agent, very tough and elastic chloroprene rubber-based water-soluble asphalt can be formed as a waterproof layer, which has the effect of achieving a more perfect waterproofing work while improving work efficiency in waterproofing works of concrete and underground structures. .

Claims (7)

a-1) 40-70% by weight of SBS (styrene butadiene styrene) modified asphalt, a-2) 5-25% by weight of polychloroprene synthetic rubber, a-3) 0.1-20% by weight of an acrylic emulsion, a-4) 0.1-5% by weight of polystyrene resin or ABS resin (Acrylonitrile Butadiene Styrene Copolymer) or propylene resin, a-5) 0.2-10% by weight of anionic emulsion dispersion; a-6) 1-25% by weight filler (mineral-TiO 2 (titanium dioxide), diatomaceous earth, cement, carbon filler), and a-7) 10-50% by weight of water Anionic water-soluble asphalt waterproofing agent which superposed | polymerized; b-1) 0-80% by weight of SBS (styrene butadiene styrene) modified asphalt, b-2) 0-20% by weight of chloroprene or SBR, b-3) 0-5% by weight of cationic emulsion dispersant, b-4) 5-15% by weight of calcium chloride, b-5) 30-90% by weight of water A water-soluble anionic-based rubber asphalt waterproofing agent composition characterized by mixing a curing agent (cation-based water-soluble modified asphalt). The method of claim 1, Water-soluble anionic system, characterized in that the pot life and construction method of the waterproofing agent is controlled by controlling the amount of the mixing ratio of the aqueous solution mixed with calcium chloride and water and the cationic asphalt waterproofing agent as an additive of the cationic water-soluble modified asphalt which is the curing agent. Exposed rubber asphalt repellent composition. The method of claim 1, In order to harden and solidify the curing agent (cationic water-soluble modified asphalt) when the cationic water-soluble modified asphalt, which is the curing agent, is applied to the waterproofing work alone, an aqueous sodium hydroxide solution or an aqueous solution of sodium silicate is used as the curing agent. A water-soluble anionic-based rubber asphalt waterproofing agent composition, characterized by using a mixture of cement, filler and diatomaceous earth. The method of claim 1, As the additive of the anionic water-based asphalt waterproofing agent, in addition to polychloroprene synthetic rubber, natural rubber, EVA (Ethylene Vinyl Acetate), SBR (Styrene Butadiene Rubber) synthetic rubber, fluorine rubber, EPDM (Ethylene Propylene Terpolymers) synthetic rubber, acrylic synthetic Water-soluble anionic-based rubber asphalt waterproofing agent composition, characterized in that any one or more of the rubber, or produced by mixing. The method of claim 1, When applying the anionic water-based asphalt waterproofing agent alone in waterproofing construction, in order to cure and solidify the anionic waterproofing agent, a calcium chloride aqueous solution of about 15% is used as a curing agent, and cement, diatomaceous earth, filler, rubber powder, and ceramics are mixed. A water-soluble anionic-based rubber asphalt waterproofing agent composition, characterized in that it is used. After spraying the anionic water-soluble asphalt waterproofing agent and the curing agent (cationic water-soluble modified asphalt) by the anionic liquid chloroprene synthetic rubber prepared in claim 1 with each pump, spraying at a ratio of 10: 1% by weight. A water-soluble anionic-based exposed rubber asphalt waterproofing construction method, characterized by spraying with a seven-type rapid curing. a-1) 5-40% by weight of SBS (styrene butadiene styrene) modified asphalt, a-2) One or more of 1 to 25% by weight of polychloroprene synthetic rubber, SBR (Styrene Butadiene Rubber) synthetic rubber, fluorine rubber, EPDM (Ethylene Propylene Terpolymers) synthetic rubber or acrylic synthetic rubber And a-3) 5-50% by weight of an acrylic emulsion resin, a-4) 0.1-10% by weight of polystyrene or propylene resin and EPDM (Ethylene Propylene Terpolymers) alone or mixed, a-5) 0.2-10% by weight of an anionic emulsifying dispersant, a-6) 0.1-30 weight percent EVA (Ethylene Vinyl Acetate) resin, and a-7) 1-30% by weight of water Anionic water-soluble asphalt waterproofing agent which superposed | polymerized; b-1) A water-soluble anionic-exposed rubber asphalt waterproofing composition of a one-part type powder containing 100% by weight of a filler (mineral-TiO 2 (titanium dioxide), diatomaceous earth, cement, carbon filler, rubber powder, ceramic, and silica sand) Waterproofing agent composition characterized in that the coating and mixing.