KR0157239B1 - Method of water tighting - Google Patents

Abstract

The present invention relates to a waterproof construction method, and cleans the vicinity of the downfalls and downfalls, as well as the site of the damaged or cracked places such as the roof surface or roof railing wall, or where the cracks may occur, and forms a primer layer. Pretreatment to fill the voids, to apply the mixture containing the shrinkage preventing agent, to apply the fine inorganic fibers obtained by melt spinning the glass at a high temperature of 1,600 ~ 1,800 ℃ in the horizontal direction, the adhesive containing mixture of acrylic ester Applying and compressing, applying a shrinkage preventing agent-containing mixture, applying a thin inorganic fiber obtained by melt spinning glass at a high temperature of 1,600 to 1,800 ° C in the horizontal direction, and applying an adhesive-containing mixture of acrylic ester. Process of pressing, applying of shrinkage agent-containing mixture and addition The process of coating the mixture containing different shrinkage preventing agent with different ratios of the waterproofing is completed, so that the waterproof layer does not affect the condensation and hardening of the matrix of mortar and concrete, and there is no cracking due to shrinkage and expansion. Small change in strength and good adhesion between the waterproof layers to ensure the durability of the waterproof layers, and roof, basement, indoor toilet, bathroom, waste water tank, water tank, swimming pool, exterior wall waterproof, aluminum door frame made of concrete and mortar It can be used in places with relatively high contact with water, and can also be used for interior flooring construction, and construction can be carried out with only bad parts of existing waterproofing layers removed, thereby reducing costs and reducing air. Less vibration and noise and less load on the building. If the construction is possible in incomplete drying conditions, without the need to separately form the protective layer of the waterproof layer it was obtained an excellent waterproof effect.

Description

Waterproof construction method

The present invention waterproofs the joints of prefabricated buildings, container houses, aluminum sashes, etc., as well as surface treatments of structures composed of cement concrete or mortar, and prevents cracking due to shrinkage and expansion of concrete layers, as well as excellent heat resistance, fire resistance, and chemical resistance. -Waterproof, waterproof, moisture-proof, heat-insulating, electrical heat-resisting, excellent waterproofing effect, no chemical action by acid, alkali, etc., and strong durability. It is about.

As for waterproof construction, various construction methods and means such as asphalt waterproofing, cement liquid waterproofing, synthetic polymer waterproofing, etc. are provided according to the part to be waterproofed and the material and use of the existing matrix, but the combination of concrete and waterproof layer is weak, As the shrinkage, peeling, and expansion of the waterproof layer occur repeatedly due to the difference between the indoor temperature and the outside temperature, and direct sunlight, cracking occurs, corrosion occurs by acid, alkali, or various chemical components, and hydrolysis of cement occurs. Slaked lime (Ca (OH) ₂ ) generated by the flow has a problem that the strength is gradually reduced due to the decrease in specific gravity and poor purification.

In addition, the construction of the waterproof construction of old buildings that had been built since it was possible to dismantle the existing waterproof layer had a disadvantage of not only waste a lot of manpower but also increase the cost of waterproof construction due to the prolonged air.

In addition, most conventional waterproofing methods were possible only when the surface to be waterproofed was completely dried. When waterproofing was performed in an incomplete dry state, the waterproofing effect was weak, and a protective layer of the waterproofing layer had to be formed.

Therefore, the object of the present invention is that the waterproof layer does not affect the condensation and hardening of the matrix of mortar, concrete, etc., there is no cracking due to shrinkage and expansion, the change of strength with temperature is small, and the adhesion between the waterproof layers is also It is good to provide a waterproof construction method to excellent durability of the waterproof layer.

Another object of the present invention can be used in places where there is relatively a lot of contact with water, such as a rooftop, basement, indoor toilet, bathroom, waste water tank, water tank, swimming pool, exterior wall waterproofing, aluminum door frame, etc. composed of concrete, mortar, It can be used as flooring construction, and construction can be carried out with only bad parts of the existing waterproofing layer removed, which not only reduces cost and shortens the air, but also generates less vibration and noise, and does not put a heavy load on the building. In addition, it is possible to construct even in an incomplete dry state of the surface to be waterproofed, and to provide a waterproof construction method having excellent waterproof effect even without forming a protective layer of the waterproof layer.

In order to achieve not only the above objects but also another object that can be easily expressed, the present invention provides not only a broken surface such as a roof surface or a roof railing wall, or a cracked place or a part where cracking may occur, but also a downfall and a downfall The pretreatment process of arranging the vicinity of the sphere, forming a primer layer, and filling the pores, applying a mixture containing a shrinkage inhibitor, and fine inorganic fibers obtained by melt spinning glass at a high temperature of 1,600 to 1,800 ° C in the horizontal direction. A process of coating, A process of applying and compressing the adhesive containing mixture of acrylic ester base, A process of applying the mixture containing a shrinkage preventing agent, The longitudinal application of the fine inorganic fiber obtained by melt spinning glass at the high temperature of 1,600-1,800 degreeC Process, to apply and compress the adhesive-containing mixture of acrylic ester host Process, coating process containing shrinkage agent-containing mixture and coating process containing shrinkage agent-containing mixture with different addition ratios, so that the waterproof layer does not affect the condensation and hardening of the matrix of mortar, concrete, etc. No cracks due to inflation, small change in strength according to temperature, good adhesion between waterproof layers to ensure durability of waterproof layers, roof, basement, indoor toilet, bathroom, waste water tank made of concrete and mortar It can be used in places with relatively high contact with water, such as water tanks, swimming pools, waterproof walls, and around aluminum door frames, and can also be used for interior flooring construction. This not only reduces costs and shortens the air, but also vibration and noise. There is little occurrence of and does not give a big load on the building, it is possible to construct even if the surface to be waterproof is incomplete dry, and the waterproof effect was obtained even without forming a protective layer of the waterproof layer.

1 is a cross-sectional view of a layer waterproofed according to the present invention.

* Explanation of symbols for main parts of the drawings

1: building base layer 2,5,8: coating layer containing mixture containing shrinkage preventing agent

3,6 glass fiber coating layer

4,7: adhesive mixture compression layer of acrylic ester

9: mixture coating layer containing a shrinkage preventing agent for finishing

The present invention will be described in more detail with reference to the accompanying drawings as follows.

The waterproof construction method according to the present invention cleans the vicinity of the downfalls and downfalls, as well as the places where the cracked or cracked places such as the roof surface or the roof railing wall, or where cracks may occur, and forms a primer layer. Pretreatment to fill the voids, coating of the shrinkage-agent-containing mixture, coating of the fine inorganic fibers obtained by melt spinning the glass at a high temperature of 1,600 to 1800 ° C in the horizontal direction, adhesive-containing mixture of acrylic ester Process of coating and pressing, process of applying a mixture containing shrinkage preventing agent, process of longitudinally applying fine inorganic fibers obtained by melt spinning glass at a high temperature of 1,600 to 1,800, coating and pressing adhesive-containing mixture of acrylic ester Process, the process of applying the mixture containing the shrinkage preventing agent and the addition ratio And applying a different antishrinkage agent containing mixture.

The anti-shrinkage agent used in the present invention is a white powder powder lime, glass inorganic fiber is 5 ~ 13μ size fine particles obtained by melt spinning the glass at a high temperature of 1,600 ~ 1800 ℃ focusing hundreds of copies depending on the purpose of use SiO ₂ 52 ~ 72wt%, Al ₂ O ₃ 0.6 ~ 16wt%, CaO 10 ~ 25wt%, MgO 0 ~ 2.5wt%, B ₂ O ₃ 2 ~ 13wt%, Na ₂ OK ₂ O 0 ~ 14.2 It is composed of wt% and SO ₃ 0.7wt%, specific gravity is 2.54, tensile strength is 150kg / mm 2, Young's modulus is 7,400kg / mm 2, softening point is about 840 ℃, maximum elongation 4%, maximum moisture absorption 0.3 %, Specific heat of 0.19kcal / kg ℃, thermal conductivity of 0.89kcal / mh ℃, linear expansion coefficient of 5.0 × 10 ^-6 ℃, refractive index of 1.55, and have excellent features such as heat resistance, heat insulation, chemical resistance, thermal stability, equilibrium, and electrical insulation. .

The adhesive based on acrylic ester is milky white emulsion, solid content is 44 ± 2%, viscosity is less than 200cps / 25 ℃, pH is 7.5 ~ 8.5, and water is used as main solvent to improve the waterproofing effect of cement mortar and to improve adhesion It has the role of enhancing the strength, excellent miscibility with cement, strong adhesion with the mother, excellent waterproofness and excellent elasticity.

[Pretreatment Process]

Broken or cracked places such as roof surfaces or parapets, or where cracking may occur, are removed using an electric disc grinder, a hammer, a drill, or a hammer.

In particular, near the drain drain (Roof drain) and the downfall of the building already constructed before, regardless of the existing state, and the gutters made of synthetic resin or metal is replaced with a new to facilitate the flow of water.

After removing the bad condition, apply the adhesive of acrylic ester base on the whole surface to be waterproofed: cement: shrinkage preventing agent: water mixture of 18: 40: 1: 36 Adhesive: Cement: Shrinkage inhibitor: Sand: Water Pore filling is carried out with a mixture of 18: 40: 1: 80: 36.

Pore filling work smooths the water flow slope within about 1/200, and in the case of waterproofing of handrail wall, it is about 15 ~ 20cm high at the bottom. Adhesive of cement: cement: shrinkage preventing agent: water weight ratio The pretreatment process is performed by apply | coating and drying the mixture which is 18: 40: 1: 36.

[Step 1]

After surface treatment of the bottom surface and drying, the adhesive of acrylic ester based on the entire surface to be waterproofed: Cement: Shrinkage preventing agent: Water mixture of 18: 40: 1: 36 by brush with 0.5 ~ Apply to a thickness of 1 mm.

After finishing the first process, the voids in the bottom surface are completely filled, and the adhesion between the glass inorganic fiber and the bottom body used in the next process is long-lasting, and the physical and chemical stability of the cement used is increased. .

Second Process

Do the fiberglass horizontal work.

Since the length of the glass fiber is not infinite, it is usually 102mm, so the work should be carried out by the lap joint method, and the overlapping butterfly needs 3-6 mm or more.

If you lay the glass fiber, the thickness is about 1 ~ 1.5㎜.

[Third process]

In the process of adhering the glass fiber to the base of the building, an adhesive of an acrylic ester base is applied and pressed using a roller.

[4th process]

After forming the waterproof layer by laminating and adhering the glass fiber (second process and third process), the adhesive of acrylic ester on the whole surface to improve the durability and adhesion between the waterproof layers: cement: shrinkage preventing agent : A mixture having a weight ratio of water of 18: 60: 1: 36 is applied to the thickness of 0.5-1 mm using a brush.

[5th process]

The glass fiber laying work is carried out in the same manner as in the second step except that the glass fiber is laid at right angles to the glass fiber laid in the second step.

[Sixth Step]

The glass fiber was pressed in the same manner as in the third step to prevent the glass fiber from lifting.

[7th process]

In the same manner as the fourth step, a mixture of an adhesive based on acrylic acid ester: cement: shrinkage agent: water was applied.

[Step 8]

In order to protect the waterproofing layer formed through the first to seventh processes, an adhesive of acrylic ester based on the entire surface: cement: shrinkage preventing agent: water has a weight ratio of 18: 40: 1: 18 to a thickness of 0.5-1 mm. Hood and dry to complete waterproof construction.

The following examples illustrate the invention in more detail, but do not limit the scope of the invention.

Example 1

The building of Y university of original material is 10 years after the completion of construction, and it is fragile and waterproof construction in winter due to lack of construction period, so that the rooftop protection concrete layer is poor, and the waterproof layer is damaged by summer absorption, winter expansion, and crack in the lower insulation layer. The construction of the waterproofing work in a variety of ways over a number of times, but the repair work failed to be waterproofed according to the method of the present invention.

First, without severe removal of the waterproof layer in the existing building, only the heavily excited concrete and the mortar are removed by a grinder, and the adhesive of acrylic ester based on the entire surface: cement: shrinkage inhibitor: water mixture of 18: 40: 1: 36 Is applied to a thickness of 0.5 mm and dried, and then pore-filling is carried out with a mixture of 18: 40: 1: 80: 36 weight ratio of adhesive: cement: shrinkage inhibitor: sand: water based on acrylic acid ester.

Then, a mixture of acrylic ester based adhesive: cement: shrinkage agent: water weight ratio of 18: 40: 1: 36 was applied with a brush with a thickness of 1 mm, and the overlapping butterfly was not less than 3-6 mm. After laminating the glass fiber with a lap joint method, apply adhesive of acrylic ester base and compress it using a roller. Then, adhesive of acrylic ester base: cement: shrinkage preventing agent: Repeat the process of applying the mixture having a weight ratio of water of 18: 60: 1: 36 to a thickness of 0.5 mm by using a brush twice in the second step, the vertical fiber of the glass fiber.

After that, in order to protect the waterproofing layer, a mixture of acrylic acid ester-based adhesive: cement: anti-shrinkage agent: water with a weight ratio of 18: 40: 1: 18 was applied to a thickness of 0.5 mm and dried to complete the waterproof construction.

As a result of visual observation of the occurrence of cracks and the lifting of the waterproofing layer every three months after the waterproofing construction, no leakage occurred even during the rainfall of 200mm or more during the rainy season. The excitement of is not found.

As described above, in the present invention, not only the damaged or cracked places such as the roof surface or the roof railing wall, or the areas where cracks are likely to occur, but also the vicinity of the downfall and the downfall, the primer layer is formed, and the voids are formed. Pretreatment process for filling the resin, coating the mixture containing the shrinkage preventing agent, coating the fine inorganic fibers obtained by melt spinning the glass at a high temperature of 1,600 ~ 1,800 ° C in the horizontal direction, and applying the adhesive containing mixture of acrylic ester A process of pressing, applying a mixture containing an anti-shrinkage agent, a process of longitudinally applying fine inorganic fibers obtained by melt spinning glass at a high temperature of 1,600 to 1,800 ° C., and applying and compressing an adhesive containing mixture of acrylic ester Process, process for applying a mixture containing an anti-shrink agent and the addition ratio The waterproofing process is completed by applying this different shrinkage preventing agent-containing mixture, so that the waterproofing layer does not affect the condensation and curing of the matrix of mortar, concrete, etc., and there is no cracking due to shrinkage and expansion, Small change and good adhesion between the waterproof layers to ensure the durability of the waterproof layer, and the roof, basement, indoor toilet, bathroom, waste water tank, water tank, swimming pool, exterior wall waterproofing, aluminum door frame, etc. It can be used in places where there is a lot of contact with water, and can also be used for indoor flooring construction, and construction can be carried out with only the bad parts of the existing waterproofing layer removed, thereby reducing costs and reducing air, as well as reducing vibration and Less noise and less load on the building. It is possible to construct even in incomplete drying state, and it is possible to obtain the excellent effect of waterproofing without forming a protective layer of the waterproofing layer.

Claims (7)

Pretreatment process to clean up the vicinity of the downfall and downfall ports, forming primer layers, and filling the voids, as well as the damaged or cracked places such as the roof surface, rooftop railing walls, etc. A process of applying the primary shrinkage preventing agent-containing mixture, A process of applying the fine inorganic fibers obtained by melt spinning the glass at a high temperature of 1,600 ~ 1,800 ℃ in the horizontal direction, A process of applying and compressing the adhesive containing mixture of the primary acrylic ester Process for applying the secondary shrinkage preventing agent-containing mixture, longitudinal application of the fine inorganic fibers obtained by melt spinning the glass at a high temperature of 1,600 to 1,800 ° C, coating and compressing the adhesive-containing mixture of the secondary acrylic acid ester Process of applying the mixture containing the third shrinkage preventing agent, and the addition rate of the fourth Waterproof construction method comprising the step of applying a mixture containing a shrinkage preventing agent. The process of claim 1, wherein the process of applying the primer layer, the mixture containing the primary shrinkage inhibiting agent is applied to a mixture of 18: 40: 1: 36 weight ratio of adhesive: cement: shrinkage: water of acrylic ester Waterproof construction method characterized in that the formed. The method of claim 1, wherein the voids are filled with a mixture of an acrylic ester-based adhesive: cement: shrinkage agent: sand: water in a weight ratio of 18: 40: 1: 80: 36. The process of claim 1, wherein the process of applying the mixture containing the secondary and tertiary shrinkage inhibitors is performed by using a brush with a mixture having a weight ratio of 18: 60: 1: 36 adhesive: cement: shrinkage agent: water of an acrylic ester. Waterproofing method characterized in that performed by the method of applying a thickness of 0.5 ~ 1㎜. The process of claim 1, wherein the step of applying the anti-shrinkage agent-containing mixtures with different rates of addition of the fourth step is carried out by mixing the mixture having an acrylic ester-based adhesive: cement: shrinkage agent: water ratio of 18: 40: 1: 18. Waterproofing method characterized in that it is carried out by the method of coating and drying to a thickness of ~ 1㎜. The adhesive according to any one of claims 1 to 5, wherein the acrylic ester-based adhesive is a milky white emulsion with a solid content of 44 ± 2%, a viscosity of less than 200 cps / 25 ° C., a pH of 7.5 to 8.5, and water as a main solvent. Waterproof construction method characterized in that it is used. The glass inorganic fiber is SiO ₂ 52-72wt%, Al ₂ O ₃ 0.6-16wt%, CaO 10-25wt%, MgO 0-2.5wt%, B ₂ O ₃ 2-13wt%, Na ₂ OK ₂ O 0 ~ 14.2wt% and SO ₃ 0.7wt%, specific gravity 2.54, tensile strength 150kg / mm2, Young's modulus 7,400kg / mm2, softening point about 840 ℃, maximum elongation 4 %, Maximum moisture absorption 0.3%, specific heat 0.19 kcal / kg ℃, thermal conductivity 0.89 kcal / mh ℃, linear expansion coefficient 5.0 × 10 ^-6 ℃, the waterproofing method characterized in that the refractive index 1.55.