KR101219532B1 - Method for infrared heat reflective and waterproof of concrete's roof or slate's roof - Google Patents

Abstract

PURPOSE: A heat cutoff and waterproofing method for a concrete or slate roof is provided to improve energy saving effects and to improve durability by lowering the indoor temperature of a building. CONSTITUTION: A heat cutoff and waterproofing method for a concrete or slate roof is as follows. Damaged portions and foreign materials are removed from a concrete or slate surface layer(100). A mold prevention layer(110) is formed by spreading a mold prevention agent on the removed portions. A surface reinforcement layer(120) is formed by spreading a surface hardener on the surface of the mold prevention layer. A repair and reinforcement layer(130) is formed by repairing cracks, water leakage portions, and protruded portions using a reinforcement agent. A primer layer(140) is formed by spreading primer on the reinforcement agent. A heat cutoff and waterproof layer(150) is formed by spreading a heat cutoff and waterproofing material on the top of the primer layer.

Description

TECHNICAL FOR INFRARED HEAT REFLECTIVE AND WATERPROOF OF CONCRETE'S ROOF OR SLATE'S ROOF}

The present invention relates to a heat-resistant waterproof method, and more particularly, to be treated on concrete or slate roof to realize solar reflection, radiation, and heat shielding, thereby saving energy and increasing durability by lowering the internal temperature of the building. To improve the thermal protection of concrete or slate roofs.

Recently, in the summer, the word blackout has been heard through the media. Electric power shortages are severe due to increased cooling costs in summer, and it is difficult to predict electricity consumption due to changes in external conditions such as abnormal weather caused by environmental destruction.

The root cause of this problem is the destruction of the environment due to the development of human civilization.

Environmental issues have become an important threat to the survival of humankind, and global low carbon green growth is being promoted.

As part of this, the building materials market is turning to eco-friendly materials and encouraging the construction of “Green Building” to control the carbon emissions of buildings, the main culprit of environmental destruction.

Korea has also spared no support for low carbon green growth by riding on this global trend.

As mentioned above, the main culprit of environmental destruction such as large carbon emissions and energy consumption is buildings. Therefore, what constitutes a building and how to manage it is the key to solving environmental problems.

Among the various environmental problems caused by buildings, the large amount of carbon emissions caused by large energy consumption is the biggest problem. In particular, the roof of the building is exposed to the worst environmental conditions of the building, absorbing the solar heat as it increases the indoor temperature of the building to increase the energy consumption used for cooling. This means an increase in carbon emissions and environmental degradation.

In addition, the roof of the building is a part that is difficult to solve the problem of leakage of rain in rain due to damage due to the various materials of the building is placed in a poor environment.

As a roofing material of such a building, various materials such as concrete, metal, asphalt shingle, roof tiles, and slate are used. To ensure the longevity and durability of buildings by ensuring the longevity and waterproofing of these materials, they must be able to control heat and moisture.

Many methods for waterproofing roofs have been introduced, but there have been limitations of waterproof life due to problems such as lack of water vapor permeability, decomposition into ultraviolet rays, and problems with materials that cannot cope with external environmental changes.

In order to solve this problem, efforts have been made to improve the composite waterproofing method and other materials complementarily using different materials, but the overall solution has not been suggested. In other words, there was a technical problem in solving the problems caused by heat and moisture at the same time.

Particularly, in case of concrete roof, there is a limit to securing water vapor permeability due to condensation in winter, which causes neutralization of protection mortar and failed to prolong the waterproofing performance, and even if water vapor permeability is secured, it is unable to cope with changing external environmental changes. It revealed the limitations of the material.

As such, the biggest threat to building life and waterproof performance is related to solar heat in summer and water vapor permeability in winter.

In particular, regardless of the existing roofing material, the degradation of the waterproofing performance due to exposure to solar heat is a problem to be solved first to secure the waterproofing problem and durability of the building.

In addition, it must be able to contribute to energy saving that is emerging recently.

Recently, the concept of “shielding” has been introduced to reduce energy consumption due to the increase of room temperature through solar absorption and to secure waterproof performance for building management purposes.

In the past, building insulation was the key to energy saving, but nowadays, not only insulation but also thermal insulation is required.

Here, thermal insulation is a new concept that is distinguished from thermal insulation. If thermal insulation plays a passive role of thermal insulation, thermal insulation is an energy-saving concept in which the concept of thermal reflection is applied.

In other words, the heat insulation is to block the movement of heat, the heat shield is to reflect the heat.

As is well known, the sunlight consists of infrared rays, visible rays and ultraviolet rays. For example, the 300mm ~ 400mm area is the main activity of ultraviolet light sterilization effect and deterioration and decomposition of organic matter. And, the ray of 400 ~ 700mm area corresponds to the visible ray, which is the sunlight ray that our eyes can see. In addition, the area of 700 ~ 2500mm or more is called infrared rays as infrared rays, and it is invisible light rays and occupies 49% of the whole solar rays. Rays from objects that humans feel 'hot' are rays in this area. In addition, the near infrared rays belong to the 780 to 2100 nm region included in the sunlight, and unlike the infrared and visible rays, the near infrared rays are easily changed according to thermal energy. When near-infrared rays are absorbed by the target material, they are converted into thermal energy. The roof of the building contains the heat, which increases the room temperature.

On the other hand, the general paint absorbs all the infrared rays from the sun and heats up the building, which makes the building hot. Especially, in summer, the surface of the iron plate roof rises to 60 ° C, in some cases up to 80 ° C, and the room temperature reaches only 45 ° C.

However, the use of thermal barrier paints is somewhat different depending on the structure, color and weather conditions of the roof, but the surface temperature of summer roof is 15 ~ 20 ℃ and the roof backside is about 15 ℃, so it is only 1 ~ 2 than the outside air temperature on the first floor. It has been found that buildings with high temperatures of 2,500 square meters can save electricity costs of 2.4 million to 5.5 million yen (Japan) per year through thermal barriers. In addition, the long life compared to the general paint has the advantage of saving maintenance costs in the long run.

In the summer, the temperature inside the building is the temperature of the roof surface, and the heat insulating material used for the roof of the building has a low thermal conductivity, which prevents external heat from being transferred to the interior. The reflections lower the temperature of the roof surface and the heat entering the building.

In addition, the thermal barrier paint has the functions of heat conduction prevention, long wave emissivity, solar radiation reflectance, and convective heat transfer.

In this case, the long-wave emissivity is a numerical value representing the heat transfer between the solid of the roof and the air, and the long-wave emissivity of the heat shielding paint effectively releases the heat of the heated roof to the atmosphere. Reduce. Incidentally, in the heat shielding coating, the solar reflectance has the most relation to the heat shielding property.

In general, the surface temperature of the metal material rises to about 60 ~ 80 ℃ in the summer, but because the roof painted with heat-shielding paint reflects the sun rays to lower the metal surface temperature to about 40 ℃.

Convective heat transfer is a coefficient determined by the wind speed, and since the heat conductivity is only taken into account in the simple heat load calculation, the roof surface temperature is not considered.

The actual difference in solar reflectance is largely affected by the internal heat load, and the heat shielding paint is a paint using a high solar reflectance, and when applied to a roof on which insulation is not constructed, a significant energy saving effect can be expected.

Currently, the coating film waterproofing method using heat shielding performance is used for waterproofing the roof of some buildings, but this is a concept that complements the heat shielding property of the existing waterproofing agent by applying a heat shielding coating on top of the existing urethane. That is, the waterproof and the heat shield are separated.

In addition, even though the urethane waterproofing agent has no water vapor permeability and supplements the heat shielding property, the urethane waterproofing agent has a limit in maintaining the waterproofing performance in the long term, which means that a continuous energy saving effect cannot be expected.

Therefore, it is necessary to improve the environmental conditions of the roof of the building through heat shielding to save energy and to ensure continuous waterproof performance.

The present invention was created to satisfy the necessity as described above, through the heat shielding function of heat reflection, heat radiation, heat shielding to realize the energy saving effect of the building, protect the performance of the waterproof coating to improve the durability of the building It is aimed to provide thermal insulation waterproofing method of building roof which can contribute to the increase of global utility by using eco-friendly materials.

In particular, it is an object to provide a heat-resistant waterproofing method of concrete or slate roof among the roof.

The present invention as a means for achieving the above object, in the thermal insulation waterproofing method of the roof having a concrete or slate surface layer; A surface foreign material removing step of removing a damaged part or foreign matter including a mold formed on the concrete or slate surface layer; Prevention process to form a prevention layer by applying a mold inhibitor to the mold-producing area or mold anticipated area where foreign substances have been removed, and surface strengthening process to form a surface-hardening layer by applying a surface-hardening agent to the treated surface. And a pretreatment step of repairing cracks, leaks, curvature points, and protrusions with a reinforcing agent to form a reinforcing reinforcing layer; A primer coating step of applying a primer to the pretreated reinforcing reinforcement layer to form a primer layer; Including a heat-resistant waterproofing agent to form a heat-resistant waterproofing layer by applying a heat-resistant waterproofing agent on top of the undercoat layer, wherein the fungicides, 1 to 14% by weight of the fourth ammonium, 1 to 3% by weight of the phenol derivative, and the remaining water Configured; The surface strengthening treatment agent is 10 to 30% by weight of acrylic copolymer latex (acrylic copolymer latex), 10 to 30% by weight of xylene (xylene), naphthenic distillate or heavy or degreasing solvent (naphthenic distillate, heavy, solvent-dewaxed) 10 Up to% by weight (excluding 0), and residual toluene; The reinforcing treatment agent, 20 to 30% by weight of acrylic copolymer, 15 to 30% by weight of titanium dioxide, 20 to 25% by weight of inorganic filler, 2 to 4% by weight of propylene glycol, 0.1 to 1% by weight of liquefied anhydrous ammonia, and the balance Done; The primer is 50 to 80% by weight of epoxy resin (Epoxy Resins), less than 10% by weight of Cresyl glycidyl ether (excluding 0), 10 to 20% by weight of titanium dioxide and the balance Consisting of water; Water soluble epoxy primer (polyamide resin + bisphenol A) consisting of 30 to 90% by weight and the balance; mixed in a weight ratio of 1: 1; The heat-resistant waterproofing agent is 20 to 30% by weight acrylic copolymer, 15 to 30% by weight titanium dioxide, 20 to 25% by weight nanoceramic particles or mica powder, 2 to 4% by weight propylene glycol, 0.1 to 1% by weight liquefied anhydrous ammonia It provides a heat shielding method of the roof of the concrete or slate building, characterized in that consisting of the remaining water.

At this time, in the pretreatment step, the reinforcing process is characterized in that the first coating of the reinforcing treatment agent with a first coat, and then attaching a reinforcing material, which is a polyester reinforcing fabric, and re-coating with the reinforcing treatment agent.

In addition, the inorganic filler constituting the reinforcing treatment agent is characterized in that it is one or a mixture of two or more selected from stone powder, talc, calcium carbonate, silica, alumina.

In addition, in the pretreatment step, the protruding portion including the hook bolt surroundings, which is difficult to reinforce with the reinforcing agent and the reinforcing fabric reinforcing material, 40 to 75% by weight of acrylic copolymer, 2 to 10% by weight of titanium dioxide. It is also characterized by the application of a mixture consisting of%, liquefied anhydrous ammonia up to 1% by weight (excluding 0), and the balance of inorganic fillers.

According to the present invention, by forming a durable waterproof layer and at the same time blocking the heat of the sun to lower the surface temperature of the roof of the building it can increase the energy efficiency of cooling and heating.

In addition, by coating not only buildings but also asphalt or concrete pavement, urban heat island phenomenon which is a social problem can be alleviated.

In addition, the mortality rate of livestock due to heat waves can be lowered when painted on barns consisting mainly of slate roof.

On the other hand, the heat shielding performance according to the present invention can prevent the coating material from absorbing solar heat and deteriorate, so that even a thin thickness can prolong the performance of the coating material, and if the waterproofing performance is added to ensure long-term waterproofing performance, Durability can be improved.

1 is an exemplary cross-sectional view showing a heat shield waterproof structure according to the present invention.
2 is an exemplary view showing a heat shield test example according to the present invention.

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

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, embodiments in accordance with the concepts of the present invention may be modified in various ways and may have various forms, specific embodiments will be illustrated in the drawings and described in detail herein. However, this is not intended to limit the embodiments in accordance with the concept of the present invention to a particular disclosed form, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.
In particular, the expression "less than" in the expression such as "wt% or less" in the component ratio described below is a concept that does not include 0 wt%.

Thermal insulation waterproof structure of the concrete or slate roof according to the present invention, as shown in Figure 1, the surface layer 100, the anti-treatment layer 110, surface reinforcement layer 120, repair reinforcement layer 130, the undercoat layer 140 ) And the heat-resistant waterproof layer 150 are sequentially stacked.

In this case, the anti-treatment layer 110, the surface reinforcement layer 120 and the repair reinforcement layer 130 is a layer generated in the pretreatment step to be described later, the undercoat layer 140 is a layer generated in the coating step applied later The heat shield layer 150 is a layer generated in the heat shielding agent coating step to be described later.

In addition, the anti-treatment layer 110, the surface reinforcement layer 120, and the repair reinforcement layer 130 may be sequentially or selectively configured.

The heat shield waterproofing method constructed to have such a heat shield waterproof structure is as follows.

Thermal insulation waterproof method according to the present invention is when the roof is concrete or slate, that is, when the surface layer 100 is concrete or slate as shown in FIG.

Thermal insulation waterproof method according to the invention consists of a surface foreign matter removal step, pre-treatment step, the primer coating step, the heat shield waterproofing agent coating step.

At this time, the surface foreign material removal step is to remove the mold formed on the existing matrix, that is, the concrete surface layer 100, and also to remove the foreign substances present on the damaged portion or the surface.

Thereafter, a pretreatment step of forming the anti-treatment layer 110, the surface reinforcement layer 120, and the repair reinforcement layer 130 is performed.

The pretreatment step includes a prevention treatment process of forming a prevention treatment layer 110 by applying a mold inhibitor to a mold generation site or a mold generation site where the foreign material is removed; A surface hardening process of forming a surface hardening layer 120 by applying a surface hardener to reinforce the surface of aging concrete or slate and to prevent dust from adhering to the base surface and to prevent scattering; It is composed of a reinforcement process of forming a repair reinforcement layer 130 by repairing the leaked expected parts, that is, cracks, curved corners and protrusions.

That is, the pretreatment step is a step for cleaning, washing or preventing mold from occurring on the surface in order to have the heat-shielding waterproof structure of the present invention, and reinforcing and reinforcing the portions requiring reinforcement or reinforcement in advance.

At this time, the prevention process refers to the prevention treatment for the prevention of mold, to apply a mold inhibitor to prevent the mold.

In this case, the antifungal agent is composed of 1 to 14% by weight of quaternary ammonium compound, 1 to 3% by weight of phenol derivative, and the balance.

Here, the quaternary ammonium (quaternary ammonium salt) is a kind of cationic surfactant in the form of a salt, a compound mainly used as a cleaning agent, used for plaque suppression and antibacterial effect, in the present invention is less than 1% by weight When added, the anti-fungal and antimicrobial effects sharply deteriorate, and if it exceeds 14% by weight, antifouling properties rapidly increase to weaken the binding of subsequent layers, so it should be added within the above range.

In addition, the phenol derivative is a cleaning agent that performs a kind of disinfection function, and in the present invention, in addition to the cleaning function, the phenol derivative is added to improve adhesion to subsequent coatings, that is, layers. To this end, it should be added in the range of 1-3% by weight, but if added in less than 1% by weight it is difficult to expect the cleaning effect, if it exceeds 3% by weight should be limited to the above range because of the risk of concern.

Such an antifungal agent suppresses the development and growth of the mold on the surface of the lower surface and exerts a long-term effect from the inside of the new coating film. It is also easy to handle and clean after working with an aqueous system.

Meanwhile, the surface reinforcement process uses acrylic resin to reinforce the surface of old concrete or slate roof to fix dust on the surface and prevent scattering, and to reinforce the surface of the base so that subsequent coating materials can be applied smoothly. It is a process.

At this time, the surface strengthening agent 10-30% by weight of acrylic copolymer latex (acrylic copolymer latex), 10-30% by weight of xylene (xylene), naphthenic distillate or heavy or solvent-dewaxed (naphthenic distillate, heavy, solvent-dewaxed (mild) up to 10% by weight, and the balance of toluene.

In this case, xylene refers to dimethyl benzene and is a material that is important as a raw material of synthetic resin without dissolving in water. In the present invention, it is used as a reactive organic solvent of the acrylic copolymer latex, and to stabilize it and at the same time improve the adhesion.

To this end, the xylene should be added in 10 to 30% by weight, the reactivity is lowered when added to less than 10% by weight, the viscosity is increased when the content exceeds 30% by weight is preferably limited to the above range.

In addition, naphthene distillate or heavy or degreasing solvent is added to prevent oxidation and dissolution of organic substances, and toluene is mixed with xylene and solvent to improve colorability or applicability and provide adhesion stability. It is preferably added in an amount almost equal to that.

On the other hand, the reinforcement process is a process of reinforcing cracks and leaky areas by using a reinforcing agent and 100% polyester reinforced fabric as a reinforcement material.

In this case, the reinforcing treatment agent is 20 to 30% by weight of acrylic copolymer, 15 to 30% by weight of titanium dioxide, 20 to 25% by weight of inorganic filler, propylene glycol 2 4 wt%, 0.1-1 wt% of ammonia anhydrous liquefied, and the balance water.

Here, the acrylic copolymer has a tackiness as a basic component constituting the paint, but if it is added less than 20% by weight, the adhesive is inferior and if it exceeds 30% by weight, the viscosity is strong and difficult to apply should be added in the above range.

In addition, the titanium dioxide is used as a pigment and is added in an equivalent category to the acrylic copolymer, preferably 15-30% by weight.

In addition, the inorganic filler is an inorganic filler, supplements the adhesiveness of the acrylic copolymer, is added to ensure the stability of the coating, the most preferred is powder, may be talc, calcium carbonate, silica, alumina, etc., if necessary, In the present invention, it is added in the range of 20-25% by weight smaller than the acrylic copolymer.

In addition, the propylene glycol is hygroscopic but not volatile and stable to heat and light, but as a flammable material, it is used as a solvent for dissolving pigments, essential oils and resins in water, and acting as a softening agent for preservatives and preventing mold and mold growth. It is not fermented. In the present invention, the anti-fungal agent is added in an amount of 2-4% by weight so that it can be supplemented in the upper layer, but if it is added in an amount of less than 2% by weight, it is ineffective, and if it exceeds 4% by weight, the flammability is high and should be added in the above range. .

In addition, the liquefied anhydrous ammonia is a colorless transparent liquid having properties similar to water, and is mainly used as a solvent, and a small amount is added in the present invention.

In the reinforcement treatment process using the reinforcing agent, first, the reinforcing treatment agent is first applied with a first coat, and then the reinforcing material, which is a polyester reinforcing fabric, is attached, and then repainted with the reinforcing agent.

At this time, the reinforcing treatment agent is easy to waterproof because it is based on the acrylic copolymer.

In particular, since the reinforcing treatment agent is composed of a combination of titanium dioxide and a large amount of the resin, it ensures excellent adhesion, has a water resistance, durability, excellent adhesion.

In addition, it is excellent as a medium coating that can secure the adhesion to the upper layer by the initial coating of waterproof, and during the curing period, the film is sticky and needs to apply the final finishing material, which can minimize the risk of peeling the coating due to sticky.

In addition, the curvature point is preferably a polyurethane-based sealant, and in particular, a one-component polyurethane sealant is preferable, which is a simple, easy-to-use and adhesive compound that reacts very quickly to atmospheric humidity and hardens the hardened sealant. It is very elastic like rubber and can be painted on top.

In addition, it has the properties of resistance to chemicals, hydrolysis, aging, has properties that do not flow, and there is no stain and do not emulsify it can be used immediately without mixing and provides good adhesion to most lower extremities.

On the other hand, protrusions that are difficult to reinforce in the reinforcement process are 40 to 75% by weight of acrylic copolymer, 2 to 10% by weight of titanium dioxide, 1% by weight or less of anhydrous ammonia liquefied, and the balance inorganic. It is preferable to apply a mixture composed of an organic filler, wherein the acrylic copolymer has adhesiveness as a basic component of the paint, and a strong film is required for the application to a protrusion such as a hook bolt. Unlike the reinforcing agent, it should be added in the range of 40 to 75% by weight.

In addition, the titanium dioxide is used as a pigment, preferably added in 2-10% by weight.

In addition, the inorganic filler is an inorganic filler, supplements the adhesiveness of the acrylic copolymer, is added to ensure the stability of the coating, the most preferred is powder, may be talc, calcium carbonate, silica, alumina, etc., if necessary, In the present invention, it is added in a smaller range than the acrylic copolymer.

In addition, the liquefied anhydrous ammonia is a colorless transparent liquid having properties similar to water, mainly used as a solvent, in the present invention is added in a small amount of less than 1% by weight.

The composition can be utilized as an aqueous crack repair waterproofing reinforcement, it is suitable for hook bolt and crack waterproofing reinforcement because it has excellent properties of waterproofness, adhesion. It is non-toxic and non-flammable and harmless to the environment and human body. It is composed of acrylic resin concentrate and chemical resin which can reinforce weathered slate, concrete roof, damaged part of wall, etc. The base of metal, concrete roof, wall, etc. can be reinforced for many purposes. However, since it is not weather resistant against ultraviolet rays, it is necessary to apply a subsequent finish having weather resistance.

In this way, when the pretreatment step is completed, the primer coating step for forming the undercoat layer 140 is performed.

The primer coating step is to be formed on top of the anti-treatment layer 110, the surface reinforcement layer 120 and the repair reinforcement layer 130, when the roof, that is, the surface layer 100 is concrete or slate pores in the material itself Because of this, a material that penetrates into the pores and is advantageous for adhesion should be used.

The primer is to be used in the coating step, epoxy resin (Epoxy Resins) 50 ~ 80% by weight, cresyl glycidyl ether (Cresyl glycidyl ether) 10% by weight or less, titanium dioxide (titanium dioxide) 10-20% by weight and Consisting of balance water; It is preferable to use a mixture of water-soluble epoxy primer (polyamide resin + bisphenol A) 30 to 90% by weight and the balance water in a weight ratio of 1: 1.

Here, epoxy resin is a generic term for thermosetting resin having an epoxy group in a molecule, and is added to increase adhesion, and is generally a general-purpose epoxy resin (reacts with bisphenol A) and a flame-retardant epoxy resin depending on the form of reaction with epichlorohydrin. (Reacted with brominated bisphenol A (TBBA: Teraboromo- Bisphnol A)) and heat-resistant epoxy resin (reacted with phenol or O-cresol noble), and in the present invention, a general-purpose epoxy resin that reacts with bisphenol A is used. It is preferable.

In addition, when the epoxy resin is added in less than 50% by weight, the adhesion is inferior, and when it is added in excess of 80% by weight, the adhesiveness becomes too large and the coating operation is difficult, so it should be limited to the above range.

In addition, cresyl glycid ether is an interfacial adhesive for improving the stability of the bisphenol epoxy compound, and in the present invention, it should be added in an amount of 10 wt% or less.

In addition, the water-soluble epoxy primer used for sealing and priming of the concrete surface is composed of two kinds of polyamide (bis) and bisphenol epoxy (polyamide), of which polyamide resin has the greatest characteristics due to its amide properties. Because of its ability to dissolve in water, and because of its ability to dissolve in water (which is due to intermolecular hydrogenbonding), it is now widely used in research on polymers related to biochemistry that proceeds in a small solution.

In addition, bisphenol (common name of dihydroxydiphenyldimethlmethane) is a white crystalline powder having a molecular weight of 228.29 and specific gravity of 1.195 (25, boiling point of 360.5). It is condensed with formalin to make 100% phenolic resin.

Therefore, before the polyamide resin and the bisphenol A are applied, they must be accurately mixed in a weight ratio of 1: 1 and then sufficiently stirred and applied.

These are water-soluble compositions that are simple to mix and apply, have little odor, penetrate the concrete surface, harden the foundation surface, and allow top coat products to be applied well.

In addition, the coating film is resistant to most chemicals and hydrostatic pressure, has excellent chemical resistance, and controls the water vapor generated by the temperature difference between the base of the concrete to prevent air ballooning of the coating film and the waterproof layer.

After the application of the primer coating step is carried out, and finally the heat-resistant waterproofing agent is applied.

The heat-resistant waterproofing agent coating step is to form a heat-resistant waterproofing layer 150 to constitute the top layer of the coating film, the heat-resistant waterproofing agent 20 to 30% by weight acrylic copolymer (polymer acrylic), 15-30 weight of titanium dioxide (pigment) %, Inorganic filler (inorganic filler) 20 to 25% by weight, propylene glycol (propylene glycol) 2 to 4% by weight, ammonia anhydrous liquefied 0.1 to 1% by weight, the remainder.

At this time, the heat shield is excellent in resistance to water to provide a uniform waterproof film made on the original base, the characteristics and functions of the compositions are as described above.

However, in the case of the inorganic filler, it should be composed of nanoceramic particles, mica powder, or mixtures thereof to secure heat shielding properties unlike the reinforcing treatment agent described above.

In addition, it has a heat shielding effect that can reflect more than 50% of thermal infrared rays even in dark colors, has 640% elasticity, and can cope with the contraction and expansion of the concrete surface that is deformed according to the season. It is safe to apply because it has little smell and is not harmful to human body, and it has a fast drying time.

In addition, since the acrylic resin that can replace the function of the plasticizer is used, the elasticity does not drop over time, and unlike other silicones used for waterproofing, it prevents moisture from entering the coating film, so it does not expand and other acrylic More durable than the material.

Furthermore, in the heat shielding paint thus far, only the white heat shielding effect was obtained, but the heat shielding waterproofing agent according to the present invention can obtain the heat shielding effect in other colors.

In addition, it maintains its inherent flexibility without freezing even at extreme low temperatures of minus (-20), and passed 3,000 hours in accelerated weathering experiments.

Hereinafter, an experimental example is described.

[Experimental Example]

In order to confirm the heat shielding properties of the heat shield according to the present invention, FIG. 2 (a) of the heat shielding agent 20 of the present invention is applied to the gray steel sheet 10, and FIG. 2 of the general acrylic paint 20 '. (b) was tested under the same conditions.

For the measurement, the steel plate 10 was placed in the sealed housing 40, and then the light source 50 was installed in the upper part to irradiate light, and the temperature was measured by the temperature measuring module 30 in the lower part.

At this time, the undercoat of the steel plate 10 was applied to the same thickness using the same primer, the irradiation time of light through the light source 50 was applied equally to 15 minutes.

As a result of the measurement, the steel plate 10 provided with the heat shielding agent 20 of this invention rose to 58.5 degreeC, but the steel plate 10 provided with the general acrylic paint 20 'rose to 79.2 degreeC.

Through this, it was confirmed that the heat shielding paint of the present invention rises by 20.7 ° C. less than the general acrylic paint, and confirmed that the heat shielding effect is sufficient.

Therefore, it is expected that the above object of the present invention can be sufficiently achieved.

Paper: steel plate 20: heat shield
20 ': General acrylic paint 30: Temperature measuring module
40 housing 50 light source
100: surface layer 110: prevention layer
120: surface reinforcement layer 130: repair reinforcement layer
140: undercoat 150: heat shield waterproof layer

Claims (4)

In the thermal insulation waterproofing method of roof having concrete or slate surface layer;
A surface foreign material removing step of removing a damaged part or foreign matter including a mold formed on the concrete or slate surface layer; Prevention process to form a prevention layer by applying a mold inhibitor to the mold-producing area or mold anticipated area where foreign substances have been removed, and surface strengthening process to form a surface-hardening layer by applying a surface-hardening agent to the treated surface. And a pretreatment step of repairing cracks, leaks, bends, and protrusions with a reinforcing agent to form a repair reinforcing layer; A primer coating step of applying a primer to the pretreated reinforcing reinforcement layer to form a primer layer; Including; a heat-resistant waterproofing agent coating step of forming a heat-resistant waterproofing layer by applying a heat-resistant waterproofing agent on top of the undercoat layer;
The antifungal agent is composed of 1 to 14% by weight of the fourth ammonium, 1 to 3% by weight of the phenol derivative, and the balance water;
The surface strengthening treatment agent is 10 to 30% by weight of acrylic copolymer latex (acrylic copolymer latex), 10 to 30% by weight of xylene (xylene), naphthenic distillate or heavy or degreasing solvent (naphthenic distillate, heavy, solvent-dewaxed) 10 Up to% by weight (excluding 0), and residual toluene;
The reinforcing treatment agent, 20 to 30% by weight of acrylic copolymer, 15 to 30% by weight of titanium dioxide, 20 to 25% by weight of inorganic filler, 2 to 4% by weight of propylene glycol, 0.1 to 1% by weight of liquefied anhydrous ammonia, and the balance Done;
The primer is 50 to 80% by weight of epoxy resin (Epoxy Resins), less than 10% by weight of Cresyl glycidyl ether (excluding 0), 10 to 20% by weight of titanium dioxide and the balance Consisting of water; Water soluble epoxy primer (polyamide resin + bisphenol A) consisting of 30 to 90% by weight and the balance; mixed in a weight ratio of 1: 1;
The heat-resistant waterproofing agent is 20 to 30% by weight acrylic copolymer, 15 to 30% by weight titanium dioxide, 20 to 25% by weight nanoceramic particles or mica powder, 2 to 4% by weight propylene glycol, 0.1 to 1% by weight liquefied anhydrous ammonia Heat shielding method of the roof of concrete or slate building, characterized in that consisting of the remaining water.
The method according to claim 1;
In the pretreatment step, the reinforcement treatment process is a concrete or slate building roof characterized in that the first coating of the reinforcing treatment agent in the first painting, and then attaching the reinforcing material of the polyester reinforcing fabric, and then re-coated with the reinforcing treatment agent. Heat shielding method.
The method according to claim 1;
The inorganic filler constituting the reinforcing treatment agent is heat shielding waterproofing method of the roof of concrete or slate building, characterized in that the mixture of one or two or more selected from stone powder, talc, calcium carbonate, silica, alumina.
The method of claim 2,
In the pretreatment step, the protruding portion including the hook bolt surroundings, which is difficult to reinforce with the reinforcing agent and the reinforcing fabric reinforcement, is 40 to 75% by weight of acrylic copolymer, 2 to 10% by weight of titanium dioxide, and liquefied. A heat-resistant waterproofing method for a roof of concrete or slate building, characterized by applying a mixture of 1% by weight or less of anhydrous ammonia (excluding 0), and a residual inorganic filler.

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