KR101697147B1 - A composite for coating road block and coating finishing material - Google Patents

Abstract

The present invention relates to a water-resistant and contamination-resistant coating agent composition for ecological blocks, cutting blocks, reinforced soil revetment blocks, turf blocks, and the like and, more particularly, to an amorphous concrete block coating agent composition in which water resistance and contamination resistance are ensured based on a lotus leaf effect by the use of re-emulsifiable powder resin, a beautiful finishing surface can be realized based on light aggregates, and the free characteristics of coating agent colors are utilized in various ways. The block coating agent composition according to the present invention is formed such that 70 wt% to 78 wt% of white cement, 7 wt% to 15 wt% of inorganic filler, 8 wt% to 10 wt% of re-emulsifiable acryl powder, 5 wt% to 10 wt% of fumed silica powder, and 0.2 wt% to 0.5 wt% of methylcellulose are added and mixed. The cement block coating agent composition is capable of freely realizing a beautiful finishing surface and color patterns because vermiculite or pulp is added for white cement texture and the lotus leaf effect is maximized with the re-emulsifiable acryl powder coated with the fumed silica, which is inorganic matter. In addition, the color itself is maintained as it is because water permeation is prevented based on the lotus leaf effect and no contamination-based color arises in the color already realized and thus the color can be stably maintained over a long period of time in the coating agent composition.

Description

[0001] The present invention relates to a block coating composition which is resistant to contamination by using ceramic and re-oil type powder resin, and a coating composition for coating block coating and coating finishing material,

The present invention relates to a coating composition having water resistance and stain resistance such as an ecological block, a cut soil block, a reinforced earth retaining wall block and a grass block, and a coating finishing material using the coating composition. More particularly, And a method for preparing the same. The present invention also relates to a concrete block coating composition which combines the characteristics of a smooth finish surface with a lightweight aggregate and free properties of a coating color.

In Korea, blocks made of concrete (sand cement gravel) and mortar (cement, sand) have been generally used as concrete blocks for a long time.

Generally, as concrete block material, concrete and mortar have a problem in that the monotony of color (general concrete color and concrete pigment hatch), water resistance (absorbing a large amount of water) and stain resistance (adhesion of whitening phenomenon and foreign matter after construction) Especially in countries where four seasons are clear like Korea, when applied to general cut-off areas, civil engineering, architecture, construction, rivers and ponds, it is limited in use due to flaw and damage due to freezing and thawing in winter.

Generally, there is a problem in that the construction site is limited in a limited manner because there is no particular alternative in color, water resistance, and stain resistance performance to a concrete block.

Generally, concrete blocks are manufactured using concrete (sand, gravel, cement) or mortar (cement, sand), but the texture and pattern are too monotonous and limited only by the feeling of concrete retaining walls or concrete blocks In addition, there is a problem that the whitening phenomenon and the pollution are so severe that the appearance of the aesthetic after the construction is frequently generated, making it difficult to apply to a new type of finished surface or a special site.

In addition, tiles having various textures and patterns have difficulty in attaching tiles after applying the adhesive in the construction step, cracking after the construction, falling off due to weakening of the adhesive force, and cracks, Although it is a material, it is used in the construction of a cutter, and there are problems such as water resistance, stain resistance, color and texture limit.

In addition, since the conventional concrete block simply adds pigments to the concrete, even if the pigment is added due to the mute color of the simple color and the cement, the color can not be uniformly displayed and the pattern of the finish surface can not be given. There is a problem with limitations.

Korean Patent Publication No. 10-1071064 Korean Patent Publication No. 10-1607467

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems as described above, and it is an object of the present invention to provide a concrete and a mortar block by coating a concrete block using lightweight aggregate (pulp, vermiculite) and ceramic (cement, silica) It is an object of the present invention to provide a coating composition for a concrete block which does not cause whitening due to securing of durability and stable durability, and which does not cause whitening phenomenon and does not cause contamination due to the effect of the soft petal of a coating agent and maintains a clean and beautiful finished surface for a long time .

Also, it is an object of the present invention to provide a block coating composition which is free of hue and pattern, and has water resistance and stain resistance by coating a conventional concrete block with a concrete block coating agent using silica and re-oiling type powder resin.

Also, the object of the present invention is to provide a coating composition which can be applied to an ecological block, a cut soil block, a reinforced earth retaining wall block, a grass block and the like, and is not a coating agent manufactured by a construction method or equipment, And can provide a coating composition that can be used without pretreatment in the case of removing a front or part of a previously applied material and newly constructing it.

In addition, concrete blocks are coated on concrete and mortar blocks by using lightweight aggregate (pulp, vermiculite) and ceramics (cement, silica) to ensure color and texture and secure durability as well as water resistance, The present invention is to provide a coating composition for a concrete block which is free from contamination due to the soft petal effect of a coating agent and maintains a clean and beautiful finished surface for a long time.

Further, the object of the present invention is to provide a method for producing a lightweight aggregate, which comprises adding vermiculite, pulp, and white cement to a fumed silica-coated vinyl and acrylic re- It is a strong block coating finishing material that combines acrylic resin powder with vermiculite and pulp cement and has water resistance and stain resistance due to soft petal effect. It can be applied as a coating agent on the concrete block surface during new construction, The present invention relates to a coating composition for a concrete block which can be stably applied on a concrete block.

Other objects and advantages of the present invention will be described hereinafter and will be understood by the embodiments of the present invention. Further, the objects and advantages of the present invention can be realized by the means and the combination shown in the claims.

The present invention provides, as a means for solving the above problems, a coating composition for a block, comprising 70 wt% to 78 wt% of white cement, 7 wt% to 15 wt% of inorganic filler, 8 wt% to 10 wt% of re- 5% by weight to 10% by weight of fumed silica powder, and 0.2% by weight to 0.5% by weight of methyl cellulose are added and mixed; The present invention also provides a block coating composition comprising the ceramic and re-oil type powder resin.

As described above, according to the present invention, the method of manufacturing the cement block coating agent includes not only the addition of vermiculite and pulp to texture the white cement, but also the coating of the re-emulsion type acrylic powder with the inorganic fumed silica, It is possible to create a beautiful finish surface and color pattern freely. The color itself is kept constant because the water is not penetrated by the opened petal effect. To provide a coating composition.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a photograph of the color and pattern of a coating finish of the present invention.
Fig. 2 shows the formation of water droplets by the effect of the soft petal on the coating finish of the present invention.
Fig. 3 shows that contaminants are washed away in the rainwater and the contaminants are removed.
Figure 4 is a schematic diagram showing the coating of the present invention coated on a block.

Before describing in detail several embodiments of the invention, it will be appreciated that the application is not limited to the details of construction and arrangement of components set forth in the following detailed description or illustrated in the drawings. The invention may be embodied and carried out in other embodiments and carried out in various ways. It should also be noted that the device or element orientation (e.g., "front," "back," "up," "down," "top," "bottom, Expressions and predicates used herein for terms such as "left," " right, "" lateral," and the like are used merely to simplify the description of the present invention, Or that the element has to have a particular orientation. Also, terms such as " first "and" second "are used herein for the purpose of the description and the appended claims, and are not intended to indicate or imply their relative importance or purpose.

The present invention has the following features in order to achieve the above object.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

The present invention relates to a coating composition of block (10)

Wherein the inorganic filler is at least one selected from the group consisting of 70 wt% to 78 wt% of white cement, 7 wt% to 15 wt% of inorganic filler, 8 wt% to 10 wt% of re-emulsified acrylic powder, 5 wt% to 10 wt% of fumed silica ka powder, 0.2% to 0.5% by weight of Methyl Cellous is added and mixed; And to provide a block coating composition which is resistant to contamination by using a ceramic and re-oiling type powder resin.

Further, in order to improve the water resistance of the block coating agent, the fumed silica is nanosize.

In addition, vermiculite or pulp is added in order to freely reproduce the color and pattern of the block coating material.

Further, the block 10 is coated on the surface by selecting any one of a concrete block, an ecological block, a cut-off block, a reinforced earth retaining wall block, or a grass block.

The present invention also relates to a coating finishing material for a block which is secured with anti-fouling property by using ceramic and re-fusing powder resin which is coated on the surface of the block 10 thus produced.

Hereinafter, a specific embodiment of the present invention will be described as an example, and the scope of the present invention is not limited by the following embodiments.

- Example 1

  In Example 1, dry cement was completely mixed with 75 wt% of white cement, 15 wt% of vermiculite, 10 wt% of light weight Filler re-emulsion type acrylic powder, 10 wt% of fumed silica powder, and 0.3 wt% of methyl cellulose, And the mixture was stirred for 5 minutes at a rotation speed of 30RPM.

The fumed silica powder has a nano size, which is a constitution for containing the water resistance of the coating agent, and the re-fusing type acrylic powder is a constitution for including the durability of the coating agent.

In addition, the inorganic filler is selected from vermiculite or pulp, which is a constitution for freely rendering the color and pattern of the coating agent.

As shown in FIG. 4, the composition is sprayed on a predetermined surface of the block 10 with a spray gun or a cement mortar gun (GUN) at a pressure of 5 atm or higher to form a coating finishing material having a uniform thickness.

- Example 2

   In Example 2, after thoroughly mixing 75 wt% of white cement, 10 wt% of pulp (newspaper pulverized powder), 10 wt% of refluxed acrylic powder, 10 wt% of fumed silica powder and 0.5 wt% of methyl cellulose And 35% by weight of water were added thereto, and then the mixture was slowly stirred for 5 minutes at a rotation speed of 30RPM.

The mixture was sprayed with a cement mortar gun at a normal spraying pressure or a pressure of 5 atm or higher.

The block manufactured by the present invention includes color and pattern freedom. FIG. 1 is a photograph showing a color and a pattern of the block coating finishing material manufactured by the present invention, which will be described as follows.

The most important performance of the concrete block finishing is the color freedom. The concrete block is simply added to the concrete by simply adding color to the concrete, so that even when the pigment is added, Since the pattern of the surface can not be given, there are limitations on the construction site and application.

The cement block finish coating agent of the present invention not only adds vermiculite and pulp to texture the white cement but also coating the re-applied acrylic powder with inorganic fumed silica to maximize the effect of the soft petal, And the color itself is kept constant due to the infiltration of water due to the soft petal effect, and the color itself is not generated due to the already-expressed color, so that the color is stable as well as being maintained for a long time.

The block manufactured by the present invention includes water resistance, and FIG. 2 shows the water resistance performance of the block coating agent according to the present invention.

The water absorption of a typical concrete block will adversely affect the product, especially in winter. In particular, it is adversely affected by cracks and cracks after construction due to freezing of water absorbed in winter.

   The block coating agent prepared according to the present invention is characterized in that the nano-sized silica powder is coated with acrylic resin powder and has a petal effect (when the petal leaf is enlarged, small protrusions are gathered so that the liquid touches a small part of itself, The water is not spread due to the principle of tension, and it is formed as a water droplet, which is a block coating agent in which water is not infiltrated by the water droplet falling down and the dirty part of the leaf being washed away).

The block produced by the present invention is included in the stain resistance, and FIG. 3 shows that the pollutant is washed away by the rainwater, and the pollutant is removed.

A typical concrete block is a concrete block that is made of concrete itself. These concrete are not only contaminated by the moisture of the capillary but also have rainwater marks appearing on the exterior due to penetration and absorption into the block gaps when the pollutants in the air are exposed to rain.

In order to solve this problem, the block coating finishing material prepared by the present invention uses powdered resin coated with fumed silica to the main raw material of pure inorganic system, thereby preventing the water from being absorbed by the constitution of the material itself, , It is seen that when the air is contaminated with dust or other pollutants in the air, it is possible to wash down such pollutants in a rain, rather than to realize the original color, and to preserve the concrete block surface from pollutants very effectively.

The block prepared according to the present invention includes durability against freezing and thawing action and will be described as follows.

In countries with four distinct seasons, adiabatic finishing materials with poor water resistance during winter are frozen to adversely affect strength and durability. Generally, pure water freezes at 0 ° C and accompanies volume increase of 9% when water turns into ice

If the water is present in a confined space such as the pores of the concrete block, pressure will be generated by freezing, and the surrounding solid will be under some stress. If the introduced stress is less than the strength of the solid, an increase in volume will occur. In this state, the volume expansion due to the freezing of the capillary water is not a direct cause, which causes the pressure of the unfrozen water to increase, Is displayed.

Especially in Korea, sufficient durability can be ensured only by developing the concrete block considering seasonal effects.

Therefore, the block manufactured by the present invention can prevent the infiltration of water by the soft petal effect shown in FIG. 2 to prevent microcracks and cracks of the product from freezing and thawing.

The blocks manufactured according to the present invention include durability against dry and wet repetitive action and neutralization.

The durability of concrete used as a general concrete block can be seen as durability against dry and wet repetition, durability against neutralization, durability against chemicals.

     Durability due to dry and wet repetition is due to shrinkage cracking of the surface due to drying and shrinking of the surface although the inside is wet when the concrete block is dried rapidly. This crack is progressed by dry and wet repetition. In order to suppress such dry and wet repetitive action, coating with a concrete block coating agent of the present invention having improved water resistance improves water resistance and suppresses the dry and wet repetitive action of such concrete blocks.

The durability against neutralization is due to the action of carbonaceous gas in the air on the surface of the hardened concrete block, and calcium hydroxide is gradually changed into calcium carbonate.

Ca (OH) ₂ + CO ₂ ⇒ CaCO ₃ + H ₂ O

This reaction brings about the risk of shrinkage and occurrence of concrete block, and at the same time promotes concrete neutralization (carbonation), ie, loss of alkalinity.

Such a neutralization reaction coats the block prepared by the present invention and does not directly exposed to the carbon dioxide gas in the air, so that the carbonation reaction is inhibited, thereby forming a concrete block (without whitening).

 The block prepared according to the present invention includes the durability against chemicals, which will be described as follows.

When the concrete block is exposed to chemical substances such as acid, alkali, salt, vegetable oil, organic acid, etc., it reacts with cement hydrate and causes expansion cracks or leaks out the reactants. Such chemical erosion occurs when concrete block is built in factory wastewater, hot springs area, acidic river basin and sewage treatment facility, and deterioration situation is different according to kinds and causes of chemicals.

Sulfates are widely used as industrial raw materials and fertilizers. They are also contained in hot springs and river water. They are also contained in seawater. The concrete blocks that are built in the water flows through the gypsum (CaSO ₄ 2H ₂ O) (3CaO Al ₂ O ₃ 3CaSO ₄ 32H ₂ O) to generate a large expansion pressure, so that the gypsum reacts with the calcium aluminate hydrate in the cement to generate an expanding etchringite Because it causes expansion cracking and tissue collapse, the concrete block that is built in these places is coated with a coating agent, which makes the concrete block more durable under these circumstances.

  Strong inorganic acids such as sulfuric acid and hydrochloric acid dissolve lime, silicic acid and alumina in the cement block hydrate, so the concrete block is eroded and collapsed severely. The action of acetic acid and other organic acids is weaker than inorganic acids, but causes considerable damage.

The progress of deterioration also includes environmental conditions such as temperature and humidity, repetition of dry wetness, impact and presence of abrasion, as well as kinds of acids and minerals. Degradation due to acid is severe in concrete blocks built in the stumps of chemical plants and plating plants, and is wide ranging to relatively low concentrations of acids such as hot springs and acidic rivers. As the surface of the concrete block by acid is softened, the cement part of the surface layer first dissolves, and if it continues, the aggregate is peeled off. If the damage is further increased, the section becomes smaller. Therefore, by coating the concrete block with the coating agent, Becomes a reinforced concrete block

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood that various changes and modifications may be made without departing from the scope of the appended claims.

10: Block

Claims (5)

In the coating composition of block 10,
A mixture of 70 wt% to 78 wt% of white cement, 7 wt% to 15 wt% of inorganic filler, 8 wt% to 10 wt% of re-fused acrylic powder, 5 wt% to 10 wt% of fumed silica powder, 0.2 wt% To add by weight to mix; Lt; / RTI >
Block (10) In order to improve the water resistance of the coating agent, the fumed silica is nanosize,
The inorganic filler is prepared by adding vermiculite or pulp to free the color and pattern of the block 10 coating material,
Wherein the block (10) is one of a concrete block, an ecological block, a cut-off block, a reinforced earth retaining wall block, or a grass block.
A coating material for a block having a stainproof property using a ceramic and re-oil type powder resin, which is coated on the surface of the block (10) according to claim 1. delete delete delete

Images