KR20000025039A - Waterproof and anticorrosive process for heavy duty type load bearing resin mortar - Google Patents

Abstract

PURPOSE: A method is provided to perform waterproof and anticorrosive operation for protecting concrete by using a member of an anti-crack device having a strong tension on various kinds of concrete structure. CONSTITUTION: A method previously prevents the generation of a defect caused by a leakage and a corrosion due to a crack by applying a resin having strong crack preventing mechanism, a watertight admixture, and a heavy duty and load bearing waterproofing agent. A concrete structure such as a purifying tank or a sewage disposal plant is protected from an erosion using a heavy duty and load bearing resin mortar(Water Crete) which is water-soluble acrylic emulsion resin made by a copolymer such as synthetic polymer and polar monomer. Herein, the background to be mortared needs to be cleaned to remove impurities such as dust, oil, and rust by cleaning with a sprayer with a high pressure to perfectly attach the waterproof layer.

Description

Medium pressure proof mortar waterproof, anticorrosive method

The present invention relates to a method for carrying out waterproofing and anticorrosive work for concrete protection by using a member of a crack prevention device having strong tensile strength in various concrete structures of a water treatment plant system and a sewage treatment plant series.

In performing waterproof and anticorrosive processes, the most common causes of defects are poor concrete ground treatment (removal of tartans, poor pinhole expansion) and lack of affinity with concrete of user materials. The finished product is a crack due to the strong shrinkage and expansion of concrete and the self-column of the waterproofing finished product penetrates deeply into the concrete, thereby facilitating deterioration due to concrete neutralization.

Cement-based liquid waterproofing, liquid-permeable waterproofing, mother-permeable waterproofing, and organic solvent-based coating waterproofing are lacking in perfect ground treatment (base treatment) during construction, which is insufficient to remove the source defects of defects. In the cement-based mortar waterproofing system, there is a natural lack of a crack prevention device due to the self-organization of the waterproofing finished material and shrinkage expansion of concrete.

When mixed with cement, the liquid waterproofing of calcium chloride and sodium silicate due to the simplistic reaction of increasing the exothermic temperature, despite the thick protective mortar layer, erosion of the concrete sphere and internal reinforcement due to chemical reaction (oxidation) of the applied materials. In addition, the thick protective mortar layer promotes the deterioration of the concrete (cracking phenomenon) and the fall-off due to the reaction of the infiltrate water due to the lack of strong crack protection.

Liquid permeable waterproofing developed as a method of improvement also occurs in cracking due to external factors and self-curing process due to lack of crack preventing device, despite its excellent function as waterproofing agent such as impermeability, moisture resistance, water resistance, etc. It is impossible to prepare by the heat and so on.

Maternal penetrability, developed due to the limitations of mortar waterproofing, is also a thin film (T = 1 ~ 2M / M), which penetrates deep into concrete deeply due to hydration which continuously penetrates by external water pressure. It has excellent excellence as a material for strong pressure against water pressure, but it is limited in preventing cracking of concrete spheres and cracking due to impact of waterproof coating layer due to external factors due to the inability to combine and prevent cracking.

Due to these factors, it is impossible to prevent cracks in waterproof mortar finished products without the application of a crack prevention device due to strong tensile force.

In other concrete structures such as water purification plants and sewage treatment plants, acid rain from carbon dioxide (CO ₂ ), nitrous oxide (NO _x ), and oxygen sulfur in the air penetrates the alkaline concrete, resulting in deterioration of concrete and cracking. Alkali silica gel is formed by reacting with alkali of concrete as chlorine component of.

As the alkali silica absorbs water, the concrete expands and deteriorates and small debris is formed, and the water penetrates due to cracks, causing internal reinforcing bars. Oxidation corrosion is accelerated and concrete structures are destroyed.

In addition, the concrete structure of the sewage treatment plant series stores the corrosive sewage or sewage sludge, which contains a large amount of organic matter including sulfates and sulfur, and thus accelerates oxidation corrosion.

Moisture promotes deterioration of concrete compounds. Since deterioration, cracking, and dropping of concrete are directly related to water penetrating from the outside, it is necessary to block the infiltrating water at the source, and to have water resistance to always exclude water ingress with low absorption rate, and similar coefficient of thermal expansion to concrete. The breakdown and peeling of the waterproof layer against the furnace temperature difference should not occur, and the moisture remaining in the concrete should be completely released during the long curing period.

By applying homogeneous materials that have affinity with concrete to concrete structures, the saturation temperature is low enough to maintain strong adhesion that is not damaged by stress, vibration and shock even in low temperature water, and deterioration crack leakage corrosion due to neutralization as described above. Long-term measures should be taken to permanently maintain the concrete structure by blocking the occurrence of defects.

Therefore, in the present invention, using a water proof acrylic mortar waterproofing agent (Water Crete ＃ 101, ＃ 201), which is a water-soluble acrylic emulsion resin made by copolymerization of synthetic polymer resin and polar monomer, water purification plant system, sewage treatment plant-based concrete In order to provide a waterproof and anticorrosive method to protect the structure from clean water and corrosion, it is necessary to thoroughly observe the surface of the sphere.

① Reinforce the poor part of concrete such as honeycomb crack, water leakage and water part.

(2) Medium method of removing acrylic surface and pinhole film of concrete surface by wet sanding machine using strong spraying device (Raytans), enlarging (pinhole void) and acrylic emulsion resin with strong adhesiveness and self-elasticity. Proof resin mortar waterproofing agent [WATER CRETE # 101; Ultra-low viscosity active compound resin for a liquid resin compound containing amorphous silica which is strongly penetrated and adhered to capillaries, pores, pinholes, microcracks, etc., WATER CRETE # 201; Medium-density resin mortar waterproofing agent having strong waterproofness and self-elasticity and strong adhesiveness] and a blending agent [WATER CRETE POWDER; 1 ~ 7㎛ Particle Fly Ash + Active Compound + Selected River Yarn, etc.] and R.F.G Cloth (Cracking Reinforcement Weave) with strong tensile strength.

③ Apply primer as WATER CRETE # 101 to infiltrate the capillary and penetrate the pores and voids to form the basis for primary penetration adhesion.

④ Adsorption + Cement (1: 1) + Waterproof mortar of resin is completely filled in the irregularities and the enlarged pinhole voids from which the raytans are removed, so that the waterproof film can be formed precisely (using a brush and a wooden trowel). After tidying up

⑤ Laminated R.F.G Cloth on the uniform waterproof mortar layer with T = 2M / M thickness of admixture + cement (1: 1) + resin to build safety of initial waterproof layer

⑥ Uniformly compresses the waterproof mortar of admixture + cement (1: 1) + resin to T = 5M / M thickness to form a perfect waterproof layer to prevent cracking due to the strong tensile strength of RFG CLOTH and the waterproof layer with strong adhesion to the sphere. Chemical resistant resin mortar with self-elasticity creates a sense of unity with the sphere, and completely removes permeable materials on the surface of concrete (CON'C), thereby making it more durable and durable To provide.

Hereinafter, the present invention will be described in detail.

1 is a block diagram showing a preferred embodiment of the present invention

2 is a configuration diagram showing a second preferred embodiment of the present invention

3 is a configuration diagram showing a third preferred embodiment of the present invention

4 is a configuration diagram showing a fourth preferred embodiment of the present invention

5 is a configuration diagram showing a fifth preferred embodiment of the present invention

6 is a configuration diagram showing a sixth preferred embodiment of the present invention

7 is a configuration diagram showing a seventh preferred embodiment of the present invention

8A to 8I are a background treatment (base treatment) process diagram of the present invention.

☞ Explanation of symbols used in the main part of the drawing ☜

One; Ground clearance 2; waterproof mortar

3; Crack resistant reinforcing woven fabric (R.F.G cloth) 4; Mixed mortar

5; Liquid transparent epoxy 6,6 '; Colored oily epoxy

7; Epoxy primer 8,8 ', 8 "; liquid epoxy for drinking water

9,9 ', 9 "; epoxy resin 10,10'; Glass Cloh

The present invention is to prevent the occurrence of defects from leakage and corrosion due to cracks by applying a strong crack preventing device, water-tight admixture and a waterproof and chemical resistance, copolymerization of synthetic polymer resins and polar monomers (Copolymers) Water-resistant acrylic mortar waterproofing agent (Water Crete ＃ 101; supervised low viscosity resin mortar waterproofing agent that strongly penetrates to pores, pinholes and surface cracks), Water Crete ＃ 201; Waterproof, anticorrosive method to protect clean water system and sewage treatment plant concrete structure by using elasticity and strong adhesive medium mortar waterproofing agent) and RFG cloth with strong tensile strength. It is characteristic of the construction method.

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

Example 1

As shown in FIG. 1, the surface observation of the sphere is first performed, and the surface surface of the concrete and the surface of the pinhole are removed using a wet sanding machine using a powerful spraying device (ratans) and expanded (pinhole void). After the background treatment is performed by reinforcing the defective parts such as honeycomb cracks, water leakage and water parts, and then cleaning with a high pressure water sprayer, and then applying a primer on the surface subjected to the background treatment with a low viscosity medium corrosion resistant resin mortar waterproofing agent (Water Crete ＃ 101). After forming the base of the primary penetration adhesion, water admixture (water crete powder) resistant to water-tightness, salt and chemical erosion, and medium-density corrosion-resistant resin mortar waterproofing agent (water crete ＃ 201) were added (1: 1). Filling the waterproof mortar into the uneven portion and the enlarged pinhole voids to remove the waterproof mortar, and precisely applying (brush, roller, wood trowel, combined use) to form a waterproof film, and

A process of applying a waterproof mortar (2) mixed with the admixture (Water Crete Powder) and the medium-weight medium-pressure proof resin mortar waterproofing agent (Water Crete # 201),

Laminating R.F.G cloth (3) with strong tensile strength to build an initial waterproof layer, and

Portland cement and water-resistant admixture (water crete # 201; fly ash + active compound, selected aggregates of selected rivers) mixed with a medium corrosion resistance resin mortar waterproofing agent (Water Crete # 201) in a 1: 1 mixture In the process of applying the mortar 4 uniformly up and down, left and right uniformly (about 5M / M), the water resistance, adhesive force, chemical resistance, chemical resistance, weather resistance, etc. of the resin are mixed with the resin mortar so that the heat of the conventional cement mortar waterproof layer, It is to be able to form a sense of unity between the resin mortar and the sphere by supplementing and improving defects such as peeling, and the like.

Looking at the ground clearance (1) operation;

Medium method Load bearing should be cleaned cleanly to avoid impurities such as dust, oil, rust, etc., and should be installed at the joints, construction joints, uneven parts, and honeycomb parts of formwork, The raytans adsorption site forming the release layer is a strong sandblasting device of the wet sanding machine, which enlarges the voids in the pinhole and removes the adsorbed raytans, thereby making sandpaper type irregularities to easily penetrate the primary waterproof adhesive. And after the waterproof layer adhesion is processed to complete the cleaning with a high pressure sprayer to thoroughly remove the foreign matter.

Then, the process as shown in FIGS. 8A to 8I is performed to remove the source of the defect by applying all necessary methods such as resin grouting to the crack and the leak crack, and index treatment to the water.

That is, the removal of latans and the expansion of the pore at the pinhole (Fig. 8a) → filling the resin mortar with the honeycomb area (Fig. 8b) → water treatment of the leaking part (Figs. 8f) → joint leakage and insulation joint complementary treatment (8g) → corner reinforcement treatment (8h) → pipe periphery reinforcement treatment (8i).

Hereinafter, the matters before the construction of the resin mortar will be described.

One). A small amount of material is tested and formulated prior to field formulation to determine the appropriate amount of material to be added.

At this time, when workability is degraded due to rapid curing due to external environmental changes such as external temperature, an appropriate amount of water is added to improve workability.

2). Mortar

The resin mortar is mixed by sufficiently mixing the resin mortar waterproofing agent to the aggregate mixed by the designated mixing ratio.

Hereinafter, the construction method of the present invention described above is as follows.

1) .Apply primer

When the background cleaning process (1) is completed, 0.3 kg / m 2 of low viscosity medium corrosion-resistant resin mortar waterproofing agent (Water Crete® 101) is applied to the ground on which the ground treatment is completed using a pressure sprayer or a brush or a roller.

At this time, the coating is applied so as to be uniformly sufficiently impregnated.

2) forming the first waterproof layer

The paste is a mixture of a specially formulated powder waterproof admixture (Water Crete Powder) and a medium viscosity medium strength resin mortar waterproofing agent (Water Crete # 201) on the surface coated with a low viscosity medium corrosion resistant resin mortar waterproofing agent (Water Crete # 101). (Paste) is applied to fill the voids in which the surface of the uneven surface and the pinhole film from which the latans have been removed is filled without gaps to form a primary waterproof layer. (Brush, Laura, wooden trowel combined)

3). Second waterproof layer formation

T = 2M / M on the surface of the sphere where the filling of the medium pressure bearing resin mortar is completed after mixing and mixing the water crete powder and the medium viscosity medium strength bearing resin mortar waterproofing agent (Water Crete ＃ 201) Apply evenly with iron trowel, etc. in thickness, and attach RFG CLOTH to form a strong secondary waterproof layer on the surface of concrete.

4) .Resin mortar

Plastering the resin mortar of the medium-density medium-type resin mortar waterproofing agent (Water Crete ＃ 201) with waterproof anticorrosive and self-elasticity on the strong waterproof layer to which the RFG CLOTH is attached to the thickness of T = 5M / M Plastering and finishing to form a secondary waterproof layer forming a sense of unity with the first formed waterproof layer.

Hereinafter, the heavy corrosion resistant resin mortar waterproofing agent (Water Crete # 101, # 201), a powder waterproofing admixture (Water Crete Powder), and a crack preventing reinforcing fabric (R.F.G CLOTH) will be described.

1) .Medium corrosion resistant resin mortar waterproofing agent (Water Crete ＃ 101, ＃ 201)

A water-soluble acrylic emulsion resin is a resin obtained by neutralizing acid groups by copolymerizing acrylic esters, styrene, acrylic acid, maleic acid, methacrylic acid, itaconic acid, functional monomers, polar monomers having -COOH, -OH groups, and the like.

This resin is alkaline and prevents the neutralization of mortar when mixing with cement mortar and forms a metal chelate with mortar to form an insoluble waterproof and anticorrosive layer in water. It has strong adhesion to concrete. It prevents cracking due to defect shock or shrinkage, and the strong waterproof membrane of heavy-duty resistive mortar sealant prevents the capillary of entrained air layer by combining with cement mortar, and its chemical resistance and abrasion resistance protect concrete surface layer. Strong adhesion to spheres has applications in a wide range of applications, from crack repair to concrete.

2) .Water Crete Powder

It is a material that mixes the fly ash of alkaline fine powder (1 ~ 7㎛) which has alkalinity and friendly mixing of Portland Cement, and the selected river yarn in the composite of the special activator and many activated compounds. It is a material that promotes the waterproofing and strength increase due to the blocking of the micropore of the mortar layer by the friendly mixing of the capillary and pore penetration activation of the 'C sphere with the alkaline synthetic polymer water-soluble acrylic emulsion.

3) .Rock-Fabric Reinforcement Fabric (R.F.G CLOTH)

The selected glass raw material is melt-spun into very fine (5,6,7,9u) filament at a high temperature of several hundred degrees, and strands of 50-800 strands are concentrated by starch organic binder. It is produced by weaving yarn, jointed or specially processed yarn in a certain interval of warp and weft.It is impregnated and squeezed in acrylic emulsion resin to show its unique strong tensile strength. It is laminated between resin mortar to prevent the impact of external impact or temperature change of resin mortar with strong tensile force.

Example 2

2 times of liquid transparent epoxy (0.3 kg) for the improvement of anticorrosive property and the post-maintenance (cleaning) of the anti-slip surface lubrication surface of the heavy corrosion resistance resin mortar which performed the above-described ground clearance 1 as shown in FIG. 2. / ㎡) (5) twice, colored oil-based epoxy (6) (6 ') at the level of HWL (High Water Level) (-30CM) for the purpose of maximizing aesthetic freshness and preventing corrosion by oxides such as hydrogen emulsion. Is applied.

Example 3

Applying the liquid epoxy primer (5) harmless to the human body and water for the purpose of protecting the clean water of the drainage or purified water on the medium-load proof resin mortar, which has been subjected to the above-described ground clearance (1) as shown in FIG. 8) (8 ') is applied.

Example 4

Epoxy primer (7) is applied to the heavy-duty load-bearing resin mortar having the above-described ground clearance (1) as shown in FIG. 4, and the epoxy resin (FRP) having a tensile strength such as steel plate protection and clean water quality of the rooftop water tank of a large apartment complex (9), Glass Cloth (10), and Epoxy Resin (9 ') were laminated, followed by 3 times (8) (8') (8 ") thick lining of liquid epoxy for drinking water.

Example 5

As shown in FIG. 5, an epoxy primer (7) is applied on a heavy-load proof resin mortar having the above-described ground clearance (1) and the like to prevent corrosion of the concrete of various structures of sewage treatment plant series by wastewater and hydrogen sulfide. 2 times (6) (6 ') of colored oily epoxy or 2 times of tar epoxy of black single type in consideration of clean water treatment effect.

Example 6

6 to prevent corrosion by chemicals of various chemical tanks on the heavy load bearing resin mortar having the above-described ground clearance (1) or the like, or to prevent corrosion, gas leakage prevention, and airtightness in the digester of a sewage treatment plant. For this purpose, the epoxy resin (FRP) was applied twice (9) (9 ').

That is, the epoxy primer (7) is applied, then the epoxy resin (9), glass cloth (10), the epoxy resin (9 '), and the glass cloth (10') in this order, and then the epoxy resin twice (9) (9 ') is applied

※ In laminating the glass cloth (10 ') in the anticorrosion hole of the chemical tank of the present Example 6 and then applying the epoxy resin twice (9) (9'), the resin coating cloth is an acid resistant chemical resistant epoxy Apply the resin.

Example 7

As shown in FIG. 7, a liquid transparent epoxy was used for the purpose of preventing corrosion by oxidation, salt damage, etc. by reaction of sulfuric acid and nitrogen dioxide in the coastal and industrial areas on the heavy corrosion proofing resin mortar having the above-described grounding (1). 5) Application | coating and colored oily epoxy resin Twice (6) (6 ') is apply | coated.

As described above, the heavy corrosion-resistant resin mortar waterproofing and corrosion protection method of the present invention is a resin mortar (WATER CRETE PRIMER, WATER CRETE PASTE + R.FG CLOTH, Strong crack prevention waterproof, anticorrosive layer formed by finishing with WATER CRETE) closes the permeable material to near perfect perfection, making the stability of concrete structure permanently, thereby preventing productivity loss and economic loss due to cracks, leaks and corrosion. In addition, to cope with various anticorrosive methods as an accessory process to improve the efficiency of waterproofing, anticorrosive construction for various structures such as water purification plant, sewage treatment plant, etc. The present invention has many economic advantages and effects in addition to the above-mentioned. The expected value is extremely excellent.

Claims (8)

The surface of the concrete surface layer is strongly removed (Raytans) and the pinhole gap is removed. After applying a primer on the surface with a low viscosity medium corrosion-resistant resin mortar waterproofing agent (Water Crete ＃ 101) to form the basis of the first penetration adhesion, water-crete water-resistant powder and medium-density medium resistance resin Water-based mortar with a mortar waterproofing agent (Water Crete # 201) is precisely applied (brush, roller, wooden trowel, combined use) to fill the concave-convex portion and the enlarged pin-hole voids with the removal of the raytans to form a waterproof film. (1) process and, Applying a waterproof mortar (2) in which the powder waterproof admixture (Water Crete Powder) and the medium-weight medium pressure proof resin mortar waterproofing agent (Water Crete # 201) are mixed; Laminating reinforcing woven fabric for crack prevention (R.F.G cloth) (3) to build the safety of the initial waterproof layer; Medium Mortar Strength Mortar Resistant Mortar Resin Mortar Waterproofing Agent (Water Crete ＃ 201) and Portland Cement and Powder Waterproof Admixture (Water Crete ＃ 201: fly ash + mixed aggregate of refined river stream) (4) up and down and left and right uniform coating (approximately 5M / M), medium-resistant proof strength mortar waterproofing, anticorrosive method comprising the step of plastering. The method of claim 1, For the improvement of anticorrosiveness and the surface anti-slim lubrication on the medium corrosion resistance resin mortar, the liquid transparent epoxy 1 time (0.3㎏ / ㎡) (5) is applied for efficiency such as post maintenance (cleaning), Water-resistant heavy-duty resistive mortar, characterized in that the oil-based colored epoxy twice (6) (6 ') is applied to the HWL (High Water Level) (-30CM) level for the purpose of maximizing corrosion protection by oxides such as hydrogen sulfide Method. The method of claim 1, Applying an epoxy liquid primer (5), which is harmless to human body and water quality, and applying liquid epoxy twice (8) (8 ') for drinking water exclusively for the purpose of protecting the clean water of the drainage or purified water on the medium-load proof resin mortar. Medium pressure proof mortar waterproof, anticorrosive method. The method of claim 1, Epoxy primer (7) is applied on the medium load bearing resin mortar and epoxy resin (FRP) (9) and glass cloth (10) having the same tensile strength as that of the steel tank water tank clean water protection and steel plate of the large apartment complex , Water-resistant epoxy resin mortar waterproofing, anticorrosive method, characterized in that the water-based liquid epoxy 3 times (8) (8 ') (8 ") thick lining was laminated after laminating an epoxy resin (9'). The method of claim 1, Applying the epoxy primer (7) on the medium corrosion-resistant resin mortar, the colored transparent epoxy 2 considering the cleanliness effect of the appearance of the treated water for the purpose of preventing the corrosion of wastewater and hydrogen sulfide in the concrete of various structures of sewage treatment plant series Ash (6) (6 '), black single-type tar epoxy 2 times coating, characterized in that the waterproofing method of corrosion-resistant, mortar proof corrosion resistance method. The method of claim 1, Epoxy resin (7) is applied on the medium-load proof resin mortar and then epoxy resin (9) for the purpose of preventing corrosion by chemicals in various chemical tanks and preventing corrosion inside the digester of sewage treatment plants, gas leakage prevention, and airtightness. , Glass cloth (10), epoxy resin (9 '), glass cloth (10') in turn, and then laminated twice (9) (9 ') of the epoxy resin medium mortar Waterproof, anticorrosion method. The method of claim 1, (1) Application of liquid transparent epoxy (5) and colored oily epoxy resin twice (6) for the purpose of preventing corrosion by oxidation, salt damage, etc. by the reaction of sulfuric acid and nitrogen dioxide in the coastal and industrial areas on the mortar with high strength bearing resin. (6 ') is coated with a heavy corrosion resistant resin mortar waterproofing, anticorrosive method. Classify the defects of existing structures by type and type, and combine the well-known reinforcement reinforcement method with the water proofing mortar waterproofing and anticorrosive method. Waterproof, anticorrosion method.