KR101019089B1 - The block for breast walls of reinforcement earth and its manufacturing method - Google Patents

Abstract

PURPOSE: A reinforced earth retaining wall block with the coated front surface is provided to prevent the retaining wall block from being discolored and decolored by ultraviolet rays. CONSTITUTION: A reinforced earth retaining wall block(1) with the coated front surface is manufactured as follows. Contaminatnts and oil on the front surface of a concrete block are cleaned through sandblasting, shotblasting, and water jet. Primer is spread on the dried surface. A color polymer coating layer(2) is formed by spreading a mixture on the primer using a sprayer.

Description

Reinforced retaining wall block with full coating {The block for breast walls of reinforcement earth and its manufacturing method}

The present invention is not only reinforced with chemical resistance and durability, but also reinforced concrete retaining wall block and color polymer to prevent whitening of the cement concrete block front and maintain the appearance and texture such as natural stone with high quality for a long time The present invention relates to a method of manufacturing a reinforced earth retaining wall block having a polymer coating layer in which a coating layer is integrally formed in a concrete block manufacturing process. More specifically, sandblasting and shorting of oil and contaminants on a concrete block surface are performed. Surface treatment is carried out using equipment such as shotblasting, waterjet, etc., and after applying a primer on a dry surface, acrylic resin emulsion 10 ~ 40% by weight, coupling agent 0.5 ~ 30.5% by weight, leveling agent 0.5 to 30.5% by weight, dispersant 0.3 to 30.3% by weight, plasticizer 0.3 to 30.3% by weight, antifoam 0.2 to 30 .2% by weight, thickener 0.2-30.2%, calcium carbonate 5-35%, waste glass 5-35%, color silica sand 45-75%, pigment 3-33% by weight 1-5 mm It relates to a front coated reinforcement earth retaining wall block, characterized in that to form a color polymer coating layer by applying a spray with a thickness of.

Reinforced soil retaining wall construction method was developed as a form of retaining wall in 1966 by Henry Vidal, a French architect. It is a method of forming a structure.

It is usually used for cut or fill land, and it is possible to construct high quality retaining wall regardless of temperature change and to use construction cost with minimum, so it is economical and it is widely used because it has high resistance against inequality. to be.

In general, structures or building materials made of concrete such as reinforced earth retaining walls, retaining walls, etc. are not beautiful in appearance and do not have a variety of colors, so they use pigments to express colors, such as pruning, sandblasting, and shot blasting. Although it is used after surface treatment, it has many problems such as unnatural color, discoloration, discoloration, whitening, and applicability due to surface shape bending.

That is, the conventional reinforced earth retaining wall is made of cement concrete, the surface color is turbid, and the color is expressed using some pigments, but the color is monochromatic, not beautiful, and it is easy to be discolored and discolored by ultraviolet rays. Due to the hydration reaction of chlorine, the appearance of structures such as block-type reinforced earth retaining walls is very poor.

Therefore, the object of the present invention is not only to strengthen the chemical resistance and durability, but also to prevent the whitening phenomenon of the front surface of the cement concrete block, and do not cause discoloration and discoloration by ultraviolet rays, color and appearance are beautiful and high quality It is to provide a front coated reinforcement retaining wall block to maintain the appearance and texture of natural stone with a long term.

Another object of the present invention is to provide a method for easily manufacturing a front coated reinforcement retaining wall block of the above object.

In order to achieve the above objects as well as other objects that can be easily expressed in the present invention, the equipment, such as sandblasting, shot blasting, waterjet, etc. Surface treatment by using and after applying a primer to the dry cotton acrylic resin emulsion 10 ~ 40% by weight, coupling agent 0.5 ~ 30.5% by weight, leveling agent 0.5 ~ 30.5% by weight, dispersant 0.3 ~ 30.3% by weight, Plasticizer 0.3-30.3 wt%, Defoamer 0.2-30.2 wt%, Thickener 0.2-30.2 wt%, Calcium carbonate 5-35 wt%, Waste glass 5-35 wt%, Color silica sand 45-75 wt%, Pigment 3-33 wt% The mixture of% is applied to the thickness of 1 ~ 5mm by using a spray to form a color polymer coating layer, so that it has excellent binding strength with concrete, but also improves chemical resistance and durability. Parts prevent chlorosis and discoloration by ultraviolet radiation, no color fading has occurred, the color and the appearance was beautiful and easily get over the coated reinforced soil retaining wall blocks to maintain the appearance and texture like natural stone with a high quality long-term.

Reinforced soil retaining wall block and the manufacturing method of the front coated in accordance with the present invention is excellent in bonding strength with the concrete, not only the chemical resistance, durability is reinforced, but also prevents bleaching of the front surface of the cement concrete block and does not cause discoloration and discoloration by ultraviolet rays. In addition, it has the effect of maintaining the appearance and texture like natural stone with beautiful color and appearance and high quality for a long time.

1 is a perspective view of a reinforced earth retaining wall block according to the present invention,
Figure 2 is a perspective view when constructing a reinforced earth retaining wall block according to the present invention,
3 is a cross-sectional view of the inclination of the construction of the reinforced soil retaining wall construction block according to the present invention,
Figure 4 is a photograph of the shape of the bleaching phenomenon after the construction of the general reinforced earth retaining wall block,
Figure 5 is a photograph of the surface shape of the block front color polymer coating layer according to the present invention.

Reinforced earth retaining wall block coated on the front surface according to the present invention is subjected to surface treatment by using the equipment such as sandblasting, shotblasting, waterjet, etc. Acrylic resin emulsion 10 ~ 40% by weight, coupling agent 0.5 ~ 30.5% by weight, smoothing agent 0.5 ~ 30.5% by weight, dispersant 0.3 ~ 30.3% by weight, plasticizer 0.3 ~ 30.3% by weight, antifoam 0.2 ~ 30.2 wt%, thickener 0.2-30.2 wt%, calcium carbonate 5-35 wt%, waste glass 5-35 wt%, color silica sand 45-75 wt%, pigment 3-33 wt% It is characterized by applying a spray with a thickness of to form a color polymer coating layer.

In addition, the manufacturing method of the front coated reinforcement earth retaining wall block according to the present invention is the surface of the surface of the concrete block using equipment such as sandblasting, shot blasting, waterjet, etc. After the treatment and the application of the exclusive primer on the dried surface, acrylic resin emulsion 10-40% by weight, coupling agent 0.5-30.5%, leveling agent 0.5-30.5%, dispersant 0.3-30.3%, plasticizer 0.3-30.3 Wt%, Defoamer 0.2 ~ 30.2 wt%, Thickener 0.2 ~ 30.2 wt%, Calcium carbonate 5 ~ 35 wt%, Waste glass 5 ~ 35 wt%, Color silica sand 45 ~ 75 wt%, Pigment 3 ~ 33 wt% The mixture is sufficiently mixed for 2 to 3 minutes using an electric drill hand mixer or a large-capacity mixer, and then applied by spraying 1 to 3 times with a thickness of 1 to 5 mm, followed by air drying and curing the color polymer coating layer. It is characterized by forming.

First, the uncoated concrete that is coated, bonded or adsorbed on the front surface of the reinforced concrete retaining wall block is coated, bonded or adsorbed by the method commonly used in the technical field to which the present invention belongs in order to have a good bonding force with the concrete. Ingredients, oils and contaminants are removed by surface treatment using equipment such as sandblasting, shotblasting, waterjet, etc., and then a dedicated primer is applied to the dry side.

After the surface treatment, the drying is preferably natural drying, but all conventional drying methods may be used, and as the primer, acrylic resins, polyurethane resins, and the like, which are commonly used in the art to which the present invention pertains, may be used.

On the other hand, the mixture for forming a color polymer coating layer in the present invention is an acrylic resin emulsion 10 ~ 40% by weight, coupling agent 0.5 ~ 30.5% by weight, leveling agent 0.5 ~ 30.5% by weight, dispersant 0.3 ~ 30.3% by weight, plasticizer 0.3 ~ Composed of 30.3% by weight, defoamer 0.2-30.2%, thickener 0.2-30.2%, calcium carbonate 5-35%, waste glass 5-35%, color silica sand 45-75%, pigment 3-33% do.

The acrylic resin emulsion is preferably water solubility of 50% of the total solids, but is not limited to this, all acrylic resin emulsion excellent in binding strength with the primer layer can be used. If the amount is less than 10% by weight, it is not easy to form the color polymer coating layer, and if the amount is more than 40% by weight, there is a possibility of discoloration and discoloration due to ultraviolet rays, and the amount of other components is reduced so that the appearance of the color polymer coating layer is reduced. There is a problem that the color is not satisfactory.

 In addition, the coupling agent is used to have a close bond and strong bonding between the inorganic fillers used to improve the physical properties of the polymer material used in the present invention, such as heat resistance, strength, curing time. Coupling agents commonly used in the art to which the present invention pertains may be used, and it is preferable to add 0.5 to 30.5% by weight in order to improve physical properties and balance with all components.

In addition, the leveling agent may be used such as silicones or waxes, but is not limited thereto. All of the leveling agents commonly used in the art to which the present invention pertains may be used, and it is preferable to add 0.5 to 30.5% by weight in order to improve physical properties and balance with all components.

The dispersant may be an anionic, cationic or nonionic surfactant and the like, but is not limited thereto. All the dispersants commonly used in the art to which the present invention pertains may be used, and it is preferable to add 0.3 to 30.3% by weight in order to enhance physical properties and balance with all components.

On the other hand, the plasticizer is used for the purpose of improving the stability at low temperature to freeze the effect of freezing to minus 20 ℃, to improve the evaporation and chafing of water. All the dispersants commonly used in the art to which the present invention pertains may be used, and it is preferable to add 0.3 to 30.3% by weight in order to enhance physical properties and balance with all components.

The antifoaming agent can be used both antifoaming agents commonly used in the art. It is preferable to add 0.2 to 30.2% by weight in order to improve the physical properties and harmony of the whole ingredient, as a thickener may be used, but is not limited to casein, lecithin or cellulose. All thickeners commonly used in the art to which the present invention pertains may be used, and it is preferable to add 0.2 to 30.2% by weight in order to improve physical properties and balance with all components.

In addition, the calcium carbonate is used to exhibit an increase effect and whiteness, marble, calcite, calcite, limestone, chalk, ice tin, clam shell, eggshell, coral, etc., which have a high calcium carbonate content, and can be used. It is preferable to add 5 to 35% by weight in order to enhance the balance with the whole ingredient.

In addition, the color silica is a color of the high-purity quartz-based aggregate after processing to be close to natural stone, and is used to have a high strength. At this time, the color silica is preferably added to 45 ~ 75% by weight of a mixture having at least three or more particle sizes (1mm, 3mm, 4.5mm, etc.) in order to improve the physical properties and improve the appearance. If the amount is less than 45%, the improvement of physical properties and appearance improvement is insignificant. If the amount is more than 75%, the color polymer coating layer may not be easily formed. Natural silica may be used, but it is not economically effective. .

The waste glass is used to have a high-quality appearance due to its light stiffness and a high rigidity due to its unique rigidity. In order to improve the physical properties and improve the appearance, it is preferable to add 5 to 35% by weight of the waste glass having at least two or more particle sizes (1 mm, 3 mm, etc.).

The pigment is added to facilitate identification, and when added in the content, the pigment may be easily identified with a more vivid color, and the persistence of the color may be improved. As the pigment, all pigments commonly used in the art to which the present invention pertains may be used, and 3 to 33 wt% is preferably added for proper coloring.

After preparing each of the components in the composition and mixing ratio as described above, and then thoroughly mixed for 2 to 3 minutes with an electric drill Hand Mixer or a large-capacity mixer, spraying equipment on the surface that has been surface-treated and primer applied in advance Preferably by spraying using a spray.

When spraying the mixture, it is preferable not to block the injection port of the spray, and in consideration of the thickness of the color polymer coating layer, color silica and waste glass are preferably used having a particle size of 4 mm or less.

When the spraying of the mixture is completed, preferably carried out natural drying curing for about 24 hours at a temperature of about 20 ℃ to produce a reinforced earth retaining wall block according to the present invention.

An example of the manufactured reinforcement earth retaining wall block 1 is illustrated in FIG. 1, and the connecting pin hole 3 for forming the front coating layer 2 and connecting and fixing the reinforcement earth retaining wall blocks 1 during construction is vertically drilled. And the aggregate filling block hole (4) formed in the rear portion to reduce the manufacturing cost of the reinforced earth retaining wall block (1).

As can be seen from Figure 2 and Figure 3 using the reinforcement soil retaining wall block (1) prepared in accordance with the present invention can be easily constructed slope, the front coated reinforcement soil according to the invention as can be seen from FIG. Retaining wall blocks have a beautiful surface and a natural stone texture.

1: reinforced earth retaining wall block, 2: front coating layer,
3: connecting pin hole, 4: aggregate filling block hole,
5: connecting pin.

Claims (5)

Oil and contaminants on the surface of the concrete block are surface treated using sandblasting, shotblasting or waterjet equipment, and a dedicated primer is applied to the dry surface.
Acrylic resin emulsion 10-40 wt%, coupling agent 0.5-30.5 wt%, leveling agent 0.5-30.5 wt%, dispersant 0.3-30.3 wt%, plasticizer 0.3-30.3 wt%, defoamer 0.2-30.2 wt%, thickener 0.2-2 wt% 30.2% by weight,
1 mixture containing 5 to 35% by weight of calcium carbonate, 5 to 35% by weight of waste glass having at least two particle sizes, 45 to 75% by weight of color silica having at least three particle sizes, and 3 to 33% by weight of pigments Reinforced earth retaining wall block of the front coated, characterized in that the coating by spraying to a thickness of ~ 5mm to form a color polymer coating layer.
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