KR20200111601A - Eco-friendly crack waterproof material and manufacturing method thereof - Google Patents

Abstract

The present invention relates to an eco-friendly crack waterproof material that does not generate air pollutant VOCs and has a waterproof function that prevents water from penetrating into a structure by applying the material to cracks of structures that require waterproofing and leakage prevention, and a manufacturing method thereof. The manufacturing method includes: a first step of preparing 49.0 to 57.0 wt% of a liquid acrylic emulsion in a first circular cylinder; a second step of preparing, in a second circular cylinder, 5.2 to 6.4 wt% of micro-cement in a powder state, 27 to 33 wt% of soil cement, 4.5 to 5.5 wt% of quicklime, 2.2 to 2.8 wt% of sericite powder, 0.9 to 1.1 wt% of nephrite powder, 0.7 to 0.9 wt% of volcanic stone powder, 0.2 to 0.4 wt% of activated carbon powder, 0.2 to 0.4 wt% of a fluidizing agent, 0.2 to 0.4 wt% of an antifoaming agent, and 0.2 to 0.4 wt% of an expanding agent; and a third step of pouring the contents prepared in the second circular cylinder into the first circular cylinder and diluting with an electric mixer. At this time, it is preferable that the fineness of the nephrite powder of the second step is 8,000 to 10,000 cm^2/g.

Description

Eco-friendly crack waterproofing material and its manufacturing method {ECO-FRIENDLY CRACK WATERPROOF MATERIAL AND MANUFACTURING METHOD THEREOF}

The present invention relates to an eco-friendly crack waterproofing material that can be used for a crack part of a concrete structure requiring waterproofing and leakage prevention, and a manufacturing method thereof, and more particularly, to a crack of a structure requiring waterproofing and leakage prevention. It relates to an eco-friendly crack waterproofing material that does not generate air pollutant VOCs as well as a waterproof function that prevents water from penetrating into the structure by application, and a manufacturing method thereof.

The eco-friendly crack waterproofing material according to the present invention can be used for the purpose of waterproofing and preventing corrosion in various concrete structures such as parking lots, tunnels, underpasses, roadway retaining walls, piers, dams, ports, docks, breakwaters, swimming pools, and bathhouses.

In general, cracks in concrete structures are caused by structural cracks, plastic shrinkage and settlement cracks, dry shrinkage cracks, freeze-thawing, and structural cracks resulting from poor construction, physical damage, corrosion of reinforcing bars, and deterioration of performance. There are nonstructural cracks such as cracks caused by, and the cracks of the concrete structure as described above cause problems such as structural defects, decrease in durability, exterior damage, deterioration in waterproof performance, etc., and cracks continue to spread. Therefore, when cracks occur, appropriate measures are required as soon as possible.

In addition, since concrete is weak in waterproofing power, a waterproofing agent is used to prevent the penetration and leakage of moisture into most buildings, and a waterproofing agent is installed on a concrete slab to a predetermined thickness.

The waterproofing agent is classified into asphalt waterproofing, sheet waterproofing, mortar waterproofing, sealing agent waterproofing, and coating waterproofing according to the concrete construction surface or the material used.

The functional role of the waterproofing agent is to increase the waterproofing effect and not adversely affect other properties of concrete, and to prevent the behavior of the building or microcracks that may occur due to temperature changes and vibrations.

Currently, various coating waterproofing agents have been developed and used to protect concrete structures or structures, and they have strong adhesion to concrete, excellent waterproof and weather resistance, and the same alkalinity as concrete without material separation due to no neutral chemical reaction. There is a polymer cement-based inorganic waterproofing agent.

Although the polymer cement-based inorganic waterproofing agent is close to the coating type waterproofing agent, it can be classified as a waterproofing agent in which a chemical reaction occurs and watertightness is increased because cement is added.

These polymer cement-based inorganic waterproofing agents are composed of a cement-miscible acrylic emulsion polymer, which is a mixture of cement, silica sand, ceramic minerals, etc., which are powder components, and the composition is used at construction sites to waterproof concrete buildings using the above materials. To be prepared, there was a problem in that the mixing ratio of the material was not constant, as well as agitation and mixing were negligible, resulting in a non-uniform composition.

Korean Utility Model No. 20-0175730, proposed as a solution to this problem, contains 10 to 30 parts by weight of Portland cement or blast furnace cement and 20 to 50 parts by weight of a water-dispersible acrylic emulsion with a solid content of 40 to 50 parts by weight. , 30 to 60 parts by weight of siliceous silica sand of 160 mesh or less, sodium silicate, oxycarboxylic acid and sodium glucoate, which are hardening retardants, 0.5 to 1.5 parts by weight of sucrose, polysaccharides, sugar alcohol, and 1 to 10 parts by weight of water Part, toning aids and thickeners, preservatives, heat-resistant anti-aging agents, ozone-resistant agents, and ultraviolet stabilizers are composed of 0.5 to 5 weight ratios, but the disadvantage of such prior art is the use of various types of curing retardants that inhibit hydration reactions. As a result, admixtures (emulsion polymers) and powders (inorganic powders) are the same in that they are mixed and agitated in the field, so the labor cost increases due to the double work and the cost and cost increases due to the abuse of unnecessary materials. Had.

In addition, Korean Patent Registration No. 10-0406212, heated 35 to 55 parts by weight of water to 40 to 50°C, and added 5 to 10 parts by weight of nonionic surfactant and 40 to 60 parts by weight of calcium stearate to emulsify and disperse. , Preparing an emulsion A agent by mixing with 180 to 200 parts by weight of an acrylic emulsion resin copolymer; And agent B prepared by mixing 50 to 70 parts by weight of No. 7 silica sand, 5 to 9 parts by weight of chromium oxide, and 0.1 to 0.5 parts by weight of polyoxyethylene lauryl ether in 100 parts by weight of white portlent cement, and 1: Although it is suggested to mix in a 0.25 weight ratio, this prior art is the same as the prior art in that it is difficult for the user to directly make the emulsion A agent, and as a result, mixing and stirring are performed in the field.

In addition, Korean Patent Registration No. 10-0661210 is composed of a liquid binder containing a silicone emulsion as a main component, and a powder containing cement and aggregate; The content of the silicone emulsion is composed of 4 to 17% by weight based on the weight of cement as an active content, and the mixing ratio of the cement and aggregate is composed of 1:0.5 to 1:5 by weight ratio, and to stabilize the matrix structure of the cement. It is suggested that the hazard auxiliary binder is added within the range of 6 to 16% by weight of cement.

Therefore, according to the above prior art contents, acrylic or silicone emulsion is used as an admixture, and various additives are used to improve performance such as cement-based powder (inorganic powder) and various hydration reactions and water repellency, chemical resistance, and tensile strength. It can be said to be the same and similar in that the above products are mixed and stirred at the construction site.

On the other hand, newly built houses or buildings discharge asbestos, formaldehyde and other indoor pollutants, irritating the eyes, nose, and throat of the human body, causing headaches and dizziness, or making indoor residents feel tired easily. , Asthma, acute pneumonia, high fever, etc., a phenomenon such as health problems and discomfort felt by residents in such buildings is called sick house syndrome (Sick House Syndrome).

Symptoms caused by the sick house syndrome include headache, irritation of the eyes, nose, throat, etc., flatulence, itching, dizziness, nausea, decreased concentration, fatigue, sensitivity to odor, and in the long term, respiratory diseases, heart disease, cancer, etc. It is known to have.

As a result, there is a growing demand for a waterproofing agent that can remove various indoor and outdoor pollutants including cement poisons and help human health.

In addition, the present applicant came to suggest the present invention in that the waterproofing material applied to the cracked portion should be different from the waterproofing material applied to the surface of general concrete.

Korean Patent Registration No. 10-1158669

The present invention was conceived to solve all the problems associated therewith based on the contents of the prior art described above, and its purpose is to include sericite powder, purgatory powder, and activated carbon powder to cause cement poisons and sick house syndrome. It is intended to provide an eco-friendly crack waterproofing material that can have a very beneficial effect on the health of the human body and a manufacturing method thereof by promoting blood circulation and metabolism of the human body by emitting far infrared rays, which are the most beneficial wavelengths for the human body.

Another object of the present invention is an eco-friendly crack waterproofing material capable of maximizing watertightness and increasing strength by reducing voids between particles by using fine purgatory powder of 8,000 cm 2 / g to 10,000 cm 2 / g, including purgatory powder, and It is to provide the manufacturing method.

Another object of the present invention is to include volcanic stone powder Scoria so that far-infrared rays are radiated, thereby relieving fatigue of the human body through heat, midnight, aging, dry-humidity, neutralization, and resonance, and helping blood circulation and body rhythm. It is to provide an eco-friendly crack waterproofing material and a method of manufacturing the same.

In addition, another object of the present invention is an eco-friendly crack waterproofing material capable of reducing water permeability, moisture permeability, crack resistance, durability, and environmental pollution while having good adhesion as air pollutants do not generate VOCs, and a manufacturing method thereof To provide.

However, the object of the present invention is not limited to the above-mentioned object, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

According to a feature of the present invention for achieving the above object, acrylic emulsion 49.0 to 57.0% by weight; 5.2 to 6.4% by weight of microcement; 27 to 33% by weight of soil cement; 4.5 to 5.5 weight percent quicklime; 2.2 to 2.8% by weight sericite powder; 0.9 to 1.1% by weight of purgatory powder; 0.7 to 0.9% by weight of volcanic stone powder; 0.2 to 0.4% by weight of activated carbon powder; 0.2 to 0.4% by weight of a fluidizing agent; 0.2 to 0.4% by weight of antifoam; And 0.2 to 0.4% by weight of a swelling agent; however, the purgatory powder is an eco-friendly crack waterproofing material capable of increasing watertightness and strength by reducing pores by using purgatory powder of 8,000 ㎠/ｇ to 10,000 ㎠/ｇ do.

At this time, according to an additional feature of the present invention, the acrylic emulsion is 53.3% by weight; The microcement is 5.8% by weight; The soil cement is 30.4% by weight; 5.0% by weight of the quicklime; 2.5% by weight of the sericite powder; The purgatory powder is 1.0% by weight; 0.8% by weight of the volcanic stone powder; 0.3% by weight of the activated carbon powder; 0.3% by weight of the fluidizing agent; 0.3% by weight of the antifoaming agent; And 0.3% by weight of the expanding agent.

According to another feature of the present invention for achieving the above object, a first step of preparing 49.0 to 57.0% by weight of a liquid acrylic emulsion in a first circular cylinder;

In the second circular cylinder, the powdery microcement 5.2 to 6.4 wt%, soil cement 27 to 33 wt%, quicklime 4.5 to 5.5 wt%, sericite powder 2.2 to 2.8 wt%, nephrite powder 0.9 to 1.1 wt%, volcanic stone powder 0.7 A second step of preparing to 0.9% by weight, 0.2 to 0.4% by weight of activated carbon powder, 0.2 to 0.4% by weight of a fluidizing agent, 0.2 to 0.4% by weight of an antifoaming agent, and 0.2 to 0.4% by weight of an expanding agent; And

A third step of pouring the contents prepared in the second circular cylinder into the first circular cylinder and diluting it with an electric mixer;

The purgatory powder of the second step provides a method of manufacturing an eco-friendly crack waterproofing material using purgatory powder of 8,000 ㎠/ｇ to 10,000 ㎠/ｇ of powder.

When the eco-friendly crack waterproofing material and its manufacturing method according to the present invention are applied, there is an effect that can have a very beneficial effect on human health by removing various indoor and outdoor contaminants that cause cement poison and sick house syndrome by including activated carbon powder. .

In addition, there is an effect that can have a very beneficial effect on human health by promoting blood circulation and metabolism of the human body by emitting far-infrared rays, which is the most beneficial wavelength to the human body by including sericite powder and purgatory powder.

In particular, by maximizing watertightness by reducing the voids between each particle by using fine purgatory powder of 8,000㎠/ｇ to 10,000㎠/ｇ powder, the elasticity is strong and strength can be increased, thereby reducing the occurrence of toughness and tearing. It works.

In addition, due to the high degree of powder, the surface is not rough and smooth after construction, so when applied to a children's swimming pool, there is an effect of reducing abrasion even when children fall.

In addition, by including volcanic stone powder Scoria so that far-infrared rays are radiated, it relieves fatigue of the human body through heat, midnight, aging, dry-humidity, neutralization, and resonance, and has an effect that can help blood circulation and body rhythm. have.

In addition, since the function of the volcanic stone powder scoria absorbs and adsorbs harmful substances generated from furniture and cement, and blocks the formation of mold bacteria, there is an effect of improving indoor and outdoor air quality.

Hereinafter, a preferred embodiment of an eco-friendly crack waterproofing material and a method of manufacturing the same according to the present invention will be described. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.

Eco-friendly crack waterproofing material of the present invention, acrylic emulsion 49.0 to 57.0% by weight; 5.2 to 6.4% by weight of microcement; 27 to 33% by weight of soil cement; 4.5 to 5.5 weight percent quicklime; 2.2 to 2.8% by weight sericite powder; 0.9 to 1.1% by weight of purgatory powder; 0.7 to 0.9% by weight of volcanic stone powder; 0.2 to 0.4% by weight of activated carbon powder; 0.2 to 0.4% by weight of a fluidizing agent; 0.2 to 0.4% by weight of antifoam; And 0.2 to 0.4% by weight of the expanding agent; provides an eco-friendly crack waterproofing material consisting of.

As a result of a number of experiments by the present applicant, the acrylic emulsion was 53.3% by weight; The microcement is 5.8% by weight; The soil cement is 30.4% by weight; 5.0% by weight of the quicklime; 2.5% by weight of the sericite powder; The purgatory powder is 1.0% by weight; 0.8% by weight of the volcanic stone powder; 0.3% by weight of the activated carbon powder; 0.3% by weight of the fluidizing agent; 0.3% by weight of the antifoaming agent; And 0.3% by weight of the expanding agent; it was confirmed that the optimum performance was exhibited.

The acrylic emulsion is a general and commonly used mixture of water, a surfactant, an acrylic resin copolymer, etc., and stirred, and this acrylic emulsion is known to have excellent abrasion resistance, weather resistance, crack resistance, impact resistance and strength.

In addition, it is preferable to use microcement (aka Mysem 8000) having a powder of 8000 cm2/g or more in order to maximize watertightness and permeability, and increase durability and strength of the microcement. Of course, if it is admitted that the performance is partially deteriorated, you can use 3000cm2/g of Portland cement or blast furnace cement for powder, and you can also use 6000cm2/g of microcement (aka Mysem 6000) for powder. .

The soil cement and quicklime are used in general, but the quicklime is used for a smooth hydration reaction.

The sericite powder is iron (Fe), magnesium (Mg), zinc (Zn), manganese (Mn), copper (Cu), molybdenum (Mo), selenium (Se), germanium (Ge), silicon (Si), vanadium As a clay mineral containing various essential minerals for the human body such as (V) and strontium (Sr), it is a mica group mineral that is used for decomposition of active oxygen with strong reducing power. It is a physiologically active substance and has a bactericidal action.

In particular, sericite is also used as a medicinal material for poultice, diarrhea, white swelling in women, treatment of difficult acid and acute swelling, and bleeding in the digestive tract. Such sericite radiates far-infrared rays, has excellent heat conduction effect, and has antibacterial deodorization, sound insulation, and sound absorption effects. And has a silky luster.

The nephrite powder is mineralogically a kind of amphibole and has a hardness of 6 to 6.5, and is weaker and milky white than jadeite. In the present invention, a fine nephrite powder of 8,000 cm 2 /g to 10,000 cm 2 /g is used to maximize water tightness by reducing voids between particles. Due to this, it is possible to increase the strength while having strong elasticity, so that the occurrence of tearing due to toughness can be reduced. Due to the high degree of powdery as described above, the surface is not rough and smooth after construction, and when applied to a children's pool, it is possible to reduce abrasion even when children fall.

In addition, the purgatory powder contains a large amount of magnesium and emits far-infrared rays (emissivity 90-100%), which is the most beneficial wavelength for the human body, promoting blood circulation and metabolism of the human body, activating oxygen abundantly and supplying clear blood. It is known to have the effect of restoring the viscosity of blood in a balanced manner and making it alkaline. In the present invention, it is expected to be able to exhibit functions such as odor removal, water purification, anion emission, and far-infrared ray emission.

It is preferable to use Scoria, which is called'Jeju Songi' as the volcanic stone powder. According to the test results of the Korea Institute of Construction Materials, the scoria has a far-infrared emissivity of 92.6%, a deodorization rate (sample: ammonia) of 92% after 120 minutes, a fungal antibacterial rate of 99.9%, and an antibacterial rate of 98.2% by E. coli.

In addition, according to the paper'Ceramic Tile Research Using Scour', a paper by Professor Minja Heo of the Department of Industrial Design, College of Engineering, Cheju National University published in the Korean Journal of Crafts in 2000, "Skora is a volcanic rock that has a strength that does not break due to elution and firing in a volcanic eruption due to its porosity and light weight. Charcoal fireproof 1250℃, absorption rate 25.3% (general sand 2%), specific weight 0.4g/cm3 (sand 1.8g/cm3), moisture absorption, absorption, heat retention, sound insulation and humidity, heat control and far infrared ray emission PH 7.2 It is considered to be the best interior finishing material due to its medicinal alkalinity."

In addition, according to the paper'Study on the adsorption of heavy metals using scoria' published in the Korean Journal of Environmental Sciences (Vol. 5, No. 2), Professor Minkyu Lee and Geun Seo of the National Fisheries University of Pusan, "The smaller the scoria particle, the larger the surface area. As a result, the efficiency of removing heavy metals has been improved, and it has been studied with high availability as a heavy metal adsorbent.

The activated carbon powder is made by burning the leaves and stems of plants and cultivated plants in nature, the shells of plants, roots of plants, and fruits by high heat treatment, and the carbon agent is used in a fine powder. It is preferable to use a fine powder of mesh to 180 mesh and then subjected to high heat treatment again.

The activated carbon powder emits far-infrared rays with a wavelength of 56 μm to 14 μm, and has the ability to sterilize harmful bacteria, and performs various antibacterial, purifying, and deodorizing functions.

In addition, the superplasticizer is a mixture for softening concrete and is used to disperse cement particles. A lubricating film is formed between the particles to reduce mutual adhesion between the components to improve the quality of blended or cured concrete. It will significantly improve liquidity without changing it.

The present applicant confirmed through an experiment that various fluidizing agents including commonly known CMC-PC, Peramin SMF30, Peramin Conpac 149S, and the like can be used. Not only the above-mentioned type of fluidizing agent, but also other fluidizing agents can be used. The use of such a fluidizing agent is chemically stable, making it easy to manufacture high-strength concrete, and has the effect of almost no slump loss.

In addition, the antifoaming agent is used to suppress the generation of bubbles, and functions to control the amount of air and reduce bubbles. Due to this, it is possible to secure the stability of the quality, and there is an effect of improving the strength.

The present applicant confirmed through an experiment that various antifoaming agents, including generally known Agitan 295, Agitan P803, and Agitan P833, can be used. Of course, it is possible to use not only the types of antifoaming agents presented above, but also other antifoaming agents.

In addition, the inflating agent is a material that causes bubbles to swell and is used to expand the cement. In the present invention, various types of generally known expanding agents may be used.

Looking at the manufacturing method of the eco-friendly crack waterproofing material according to the present invention as described above, first, the liquid acrylic emulsion is packaged in a first circular cylinder, and the remaining material in a powder state is packaged in a second circular cylinder. The amount of each of the above materials is acrylic emulsion 49.0 to 57.0% by weight; 5.2 to 6.4% by weight of microcement; 27 to 33% by weight of soil cement; 4.5 to 5.5 weight percent quicklime; 2.2 to 2.8% by weight sericite powder; 0.9 to 1.1% by weight of purgatory powder; 0.7 to 0.9% by weight of volcanic stone powder; 0.2 to 0.4% by weight of activated carbon powder; 0.2 to 0.4% by weight of a fluidizing agent; 0.2 to 0.4% by weight of antifoam; And 0.2 to 0.4% by weight of the expanding agent; it is packaged to consist of.

At this time, it is preferable that each circular cylinder is sealed, and it is preferable that the first circular cylinder has a volume of at least twice that of the second circular cylinder. The reason for the use of the circular cylinder is to ensure smooth dilution during the dilution process using an electric mixer.

After opening the first circular cylinder and the second circular cylinder at the site for using the eco-friendly crack waterproofing material according to the present invention, the powdery materials contained in the second circular cylinder are poured into the first circular cylinder.

After that, it is diluted for about 5 minutes with a high-speed electric mixer.

On the other hand, looking at the construction method of the eco-friendly crack waterproofing material according to the present invention prepared by the above process, first, factors that may be peeling phenomena such as laitance, dust, moss, and irregularities on the surface of the existing concrete are removed.

Next, clean the surface of concrete and cutting materials with high-pressure air and a brush, mix the primer for about 3 minutes with a high-speed blender, and apply once or twice using a brush or roller. At this time, it is preferable to apply while stirring continuously so that the blended primer contents do not sink.

Thereafter, the prepared eco-friendly crack waterproofing material is applied using a spatula so that the inside of the crack is filled, and a waterproof layer having a thickness of about 2mm is formed around the crack. At this time, if necessary, a waterproof layer may be formed by applying 3 to 4 times with a brush or roller.

When the eco-friendly crack waterproofing material according to the present invention is installed, it has excellent adhesion to the construction surface, so that the lifting phenomenon is small, and construction is possible even when there is moisture on the concrete surface.

In particular, by maximizing watertightness by reducing the pores between each particle by using fine purgatory powder of 8,000㎠/ｇ to 10,000㎠/ｇ powder, the elasticity and strength can be increased, thereby reducing the occurrence of toughness and tearing. .

In particular, since the eco-friendly crack waterproofing material of the present invention is inorganic, it does not generate VOCs, so that it is possible to ensure the safety of the human body even in a workplace with poor ventilation, and there is no fear of occurrence of air pollutants.

The detailed description of the present invention is merely illustrative of the present invention, and is used only for the purpose of describing the present invention, but not for limiting the meaning or limiting the scope of the present invention described in the claims. Therefore, those of ordinary skill in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

Claims (3)

49.0 to 57.0% by weight of acrylic emulsion; 5.2 to 6.4% by weight of microcement; 27 to 33% by weight of soil cement; 4.5 to 5.5 weight percent quicklime; 2.2 to 2.8% by weight sericite powder; 0.9 to 1.1% by weight of purgatory powder; 0.7 to 0.9% by weight of volcanic stone powder; 0.2 to 0.4% by weight of activated carbon powder; 0.2 to 0.4% by weight of a fluidizing agent; 0.2 to 0.4% by weight of antifoam; And 0.2 to 0.4% by weight of an expanding agent;
The purgatory powder is an eco-friendly crack waterproofing material, characterized in that it is possible to increase watertightness and strength by reducing voids by using purgatory powder of 8,000 cm 2 /g to 10,000 cm 2 /g. The method of claim 1,
53.3% by weight of the acrylic emulsion;
The microcement is 5.8% by weight;
The soil cement is 30.4% by weight;
5.0% by weight of the quicklime;
2.5% by weight of the sericite powder;
The purgatory powder is 1.0% by weight;
0.8% by weight of the volcanic stone powder;
0.3% by weight of the activated carbon powder;
0.3% by weight of the fluidizing agent;
0.3% by weight of the antifoaming agent; And
0.3% by weight of the expanding agent;
Eco-friendly crack waterproofing material, characterized in that consisting of. A first step of preparing 49.0 to 57.0% by weight of a liquid acrylic emulsion in a first circular cylinder;
In the second circular cylinder, the powdery microcement 5.2 to 6.4 wt%, soil cement 27 to 33 wt%, quicklime 4.5 to 5.5 wt%, sericite powder 2.2 to 2.8 wt%, nephrite powder 0.9 to 1.1 wt%, volcanic stone powder 0.7 A second step of preparing to 0.9% by weight, 0.2 to 0.4% by weight of activated carbon powder, 0.2 to 0.4% by weight of a fluidizing agent, 0.2 to 0.4% by weight of an antifoaming agent, and 0.2 to 0.4% by weight of an expanding agent; And
A third step of pouring the contents prepared in the second circular cylinder into the first circular cylinder and diluting it with an electric mixer;
The purgatory powder of the second step is a method of manufacturing an eco-friendly crack waterproofing material, characterized in that the powder of purgatory powder of 8,000 cm 2 /g to 10,000 cm 2 /g is used.