KR20200136252A - Method of forming a pattern on concrete surface - Google Patents

Abstract

The present invention relates to a method for forming a pattern on a concrete surface and, more specifically, to a method for forming a pattern on a concrete surface to facilitate demolding (separation) and washing while forming the pattern (design) by repetitively forming groove and protrusion portions on the concrete surface. According to the present invention, the method comprises: a first step of engraving or embossing a planar material to make a carving plate; a second step of mixing mortar and a setting retarder to make a paste; a third step of depositing the paste on the carving plate and drying the paste for a predetermined time to make a mold; a fourth step of depositing concrete in the mold to cure the concrete; and a fifth step of demolding the cure concrete from the mold and washing a surface of the cured concrete.

Description

How to form a pattern on a concrete surface{METHOD OF FORMING A PATTERN ON CONCRETE SURFACE}

The present invention relates to a method of forming a pattern on a concrete surface, and more specifically, a pattern (design) is formed by repeating a groove portion and a protruding portion on the concrete surface, but on a concrete surface that is easy to demold (separate) and wash. It is about how to form the pattern.

From ancient times, the exterior of various roofs and pillars that make up an architectural structure has been decorated with colorful patterns to enhance the appearance of the building. In other words, there is a tendency to more effectively save the natural environment and to decorate it beautifully by giving various three-dimensional pictures or patterns according to the surrounding landscape by breaking away from the method of simply attaching tiles or stones to the interior and exterior of various civil works and architectural structures. have.

In recent years, there are many cases of forming structures using concrete due to changes in construction materials, and attempts have been made to improve the aesthetics of buildings by putting patterns on the exterior of concrete structures.

For example, concrete walls for interior and exterior walls or pillars of various architectural structures, reception rooms, school corridors, wedding halls, levee construction, port construction, highways and underground roads soundproof walls, landscape facilities, and other decorations are in harmony with the surrounding environment. Attempts are being made to form a variety of patterns so that a beautiful atmosphere can exist.

Patent Publication No. 10-1380591 (hereinafter prior art), which is a prior art, relates to a fast-setting cement concrete composition for a curb block, a method for manufacturing a pattern curb block using the same, and a pattern curb block manufactured by the method, in more detail. To explain, 0.01 to 15% by weight of a special admixture, 10 to 35% by weight of a fast-setting cement binder, 15 to 50% by weight of fine aggregate, 20 to 60% by weight of coarse aggregate, and 0.1 to 15% by weight of water are included, and the special admixture is Polyethylene vinyl acetate resin 40 to 98% by weight, polymethyl methacrylate resin 0.1 to 30% by weight, polyvinyl acetate-vinyl versatate resin 0.1 to 20% by weight, polystyrene-butyl acrylate resin 0.01 to 20% by weight and starch It relates to a fast-setting cement concrete composition for a curb stone block comprising 0.01 to 20% by weight, a method for manufacturing a pattern curb block using the same, and a pattern curb block manufactured by the method. According to the present invention, the water-cement ratio can be lowered by mixing a special admixture, and the leveling, workability, ductility, flexural strength, tensile strength, adhesion strength, durability and water retention properties of the composition can be improved, and cracks can be prevented, It is useful in terms of recycling industrial waste by using materials that are industrial wastes as fast-setting cement binders, and even if a small amount of special admixtures are added, the water/cement (W/C) ratio is effectively reduced, resulting in higher strength than conventional cement concrete compositions. And durability improvement effect.

However, the prior art has a problem in that it is not easy to remove and wash the concrete that has been cured and has a pattern on its surface.

The present invention was conceived to solve the above problem, and the surface of the cured concrete is formed with a pattern (design) by a groove portion and a protruding portion, and the cured concrete is easily demolded (separated) from the mold, and the cured concrete It is an object of the present invention to provide a method of forming a pattern on a concrete surface where washing of concrete is easy.

In addition, an object of the present invention is to provide a method of forming a pattern on a concrete surface that can easily separate an engraved or embossed engraving plate and a mold poured and dried on the engraving plate.

The present invention for the purpose of solving the above problems has the following configurations and features.

The present invention relates to a first step of manufacturing an engraving plate by engraving or embossing a plate material, a second step of creating a paste by mixing a mortar and a setting retardant, placing the paste on the engraving plate, and placing the paste at a preset time. A third step of manufacturing a mold by drying during, a fourth step of pouring concrete into the mold to cure, and a fifth step of demolding the cured concrete from the mold, and washing the cured concrete surface Includes steps.

In addition, the preset time may be a time in which the mold is not cured in the fifth step.

In addition, the plate may be an acrylic plate or a polycarbonate plate.

The present invention having the above configuration and characteristics is to create a mold by pouring a paste on an engraved or embossed engraving plate and drying it, and pouring concrete into the mold to cure it, thereby forming a pattern (design ) Has the effect of forming.

In addition, in the present invention, since the paste contains a setting retardant and the paste is dried for a predetermined time, the cured concrete is easily demolded (separated) from the mold, and the cured concrete is easily washed.

In addition, in the present invention, the plate material is formed of an acrylic plate material or a polycarbonate plate material, so that the mold can be easily removed from the piece plate.

1 is a flowchart of a method of forming a pattern on a concrete surface according to an embodiment of the present invention.
2 is a view for explaining in order to form a pattern on the concrete surface.
3 is a diagram for explaining a protective film.

The present invention will be described in detail in the text of the bar, implementation (態樣, aspect) (or embodiment) that can apply various changes and can have various forms. However, this is not intended to limit the present invention to a specific form of disclosure, and it should be understood that all changes, equivalents, and substitutes included in the spirit and scope of the present invention are included.

The terms used in the present specification are only used to describe specific embodiments (sun, 態樣, aspect) (or examples), and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, terms such as ~include~ or ~consist~ are intended to designate the presence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, but one or more other features It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance the possibility of the presence or addition.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this application. Does not.

The ~1~, ~2~, etc. described in the present specification will only be referred to to distinguish different constituent elements, and are not limited to the order of manufacture, and the names in the detailed description and claims of the invention It may not match.

Throughout the present specification, when a part is said to be "connected" with another part, it is not only "directly connected", but also "electrically connected" or "indirectly connected" with another element interposed therebetween. "Including the case.

1 is a flowchart illustrating a method of forming a pattern on a concrete surface according to an embodiment of the present invention, and FIG. 2 is a view for explaining sequentially forming a pattern on the concrete surface.

Hereinafter, for convenience of description, a method of forming a pattern on a concrete surface according to an exemplary embodiment of the present disclosure will be referred to as a'main pattern forming method'.

This pattern formation method (the method of forming a pattern on the concrete surface) includes the first step (S1), the second step (S2), the third step (S3), the fourth step (S4), and the fifth step (S5). Include.

Referring to Figures 1 and 2 (a) (Figure 2 (a) is a case of manufacturing the engraving plate (1) by engraving a plate), the first step (S1) is to engrave or emboss the plate The plate 1 is manufactured. In more detail, in step 4 (S4) to be described later, a pattern (design) to be formed on the surface of concrete (4) is written in an illustration file having an extension such as JPG or WORD, and then laser, computer numerical control), sand blasting, or the like to intaglio or emboss the plate, thereby manufacturing the engraving plate 1 having the pattern formed on one surface thereof.

The plate may be an acrylic plate or a polycarbonate plate. In this way, the plate material formed of acrylic or polycarbonate has a low expansion and contraction rate according to temperature change, so that the intaglio or embossed engraving plate 1 does not deform according to the working conditions, which will be described later. There is an advantage that the mold 3 manufactured in step S3 has more precise dimensions and is manufactured (see FIGS. 2B and 2C ).

In addition, since the plate formed of acrylic or polycarbonate does not adhere well to the cement, the mold 3 dried in the third step (S3) to be described later (the paste placed on the engraving plate 1 and dried) There is an advantage that 2)) can be easily separated from the engraving plate 1 (see FIGS. 2(b) and (c)).

In addition, the plate material formed of acrylic or polycarbonate has a low absorption rate, so deformation of the engraving plate 1 is suppressed and the drying time of the paste 2 poured on the engraving plate 1 is fixed. There is an advantage that it can be maintained (see (a) to (c) of Fig. 2).

The plate may be formed of acrylic or polycarbonate, but is not limited thereto. That is, the water absorption rate is very low, the expansion and contraction rate according to the temperature change is small, and the cement can be formed of various materials that do not adhere well.

Referring to FIG. 1, in the second step (S2), a mortar and a set retarder are mixed (mixed) to produce a paste 2. Here, the setting retardant is used for the purpose of suppressing the condensation and hardening rate of mortar (suppressing the curing of mortar). Sulfonates and the like can be used.

Referring to FIGS. 1 and 2B, in the third step S3, the paste 2 is poured into the engraving plate 1. In more detail, in the above-described first step (S1), the paste 2 that is kneaded (mixed, mixed) is poured on the surface of the engraving plate 1 that is intaglio or embossed to form a pattern. At this time, the paste 2 is filled (filled) in the groove of the engraving plate 1 formed by engraving or embossing (a recessed portion and a portion that is cut at 6 o'clock with reference to Figs. 2 (a) and (b)). If possible) it is desirable to pour.

1 and 2(c), in the third step (S3), the paste 2 poured on the engraving plate 1 is dried for a preset time, and the dried paste 2 and the engraving plate Separate (1) and make a mold (3) (mold). As described above, the engraving plate 1 is preferably formed of a material that does not adhere to cement (eg acrylic polycarbonate, for example). Here, the mold (3) is a paste (2) separated from the engraving plate (1) and dried, and the groove portion and the protruding portion of the dried paste (2) (based on (a) and (b) of Figs. It is desirable to understand all of the protruding parts in the 12 o'clock direction as a generic concept. The mold 3 is dried for a predetermined time so that the concrete 4 is poured on one surface (the surface in which a pattern is formed by contacting (filling) the carving plate 1) in a fourth step S4 to be described later. Here, the preset time may be a time in which the mold 3 is not cured in the fifth step S5 to be described later. Although it will be described in detail in the fifth step (S5) to be described later, when the mold 3 is cured beyond a preset time, it may be difficult to separate (deform) the cured concrete 4 from the cured mold 3 . That is, it is preferable to demold the concrete 4 from the mold 3 and dry the mold 3 so that the cured concrete 4 is not washed until the cured concrete 4 is washed.

1 and 2(d), the fourth step (S4) is on one surface of the mold 3 (the surface in which the pattern is formed by contacting (filling) the surface engraved or embossed in the engraving plate 1). Concrete (4) is poured and cured. Before pouring concrete (4) into the mold (3), clean the surface of the mold (3) with a cloth moistened with water to make the surface beautiful, and then one side of the mold (3) (engraved or embossed on the engraving plate (1)). It is preferable to pour concrete (4) on the surface that is in contact with (filled) the surface and the pattern is formed.

In this way, a pattern is formed by repeating the groove portion and the protruding portion on the surface of the concrete 4 by the mold 3 in which the pattern is formed by pouring and drying on the engraving plate 1 that is engraved or embossed. Illustratively with reference to FIG. (2), when the plate material is engraved as shown in FIG. 2 (a) to form a groove portion to form a pattern on the surface of the engraving plate (1), the paste (2) is It is poured so as to be filled in the part, and in the state where the paste (2) is dried and separated (mold (3)), a pattern on the surface by the protruding part of the paste (2) (the part filled in the groove part of the engraving plate (1)) This formed mold 3 is manufactured. In addition, in a state in which the surface of the concrete 4 is depressed by the protruding portion of the mold 3 (depressed at 12 o'clock based on (d) of Fig. 2), the surface of the concrete 4 is the surface of the mold 3 ( It is poured so as to contact the surface placed on the surface of the engraving plate (1) formed by engraving or embossing.

When the engraving plate 1 is embossed to form a pattern on the surface, the above process (when the engraving plate 1 is engraved to form a pattern) and the engraving plate 1, mold 3 and concrete 4 Since each groove portion and the protruding portion correspond in a changed state, a detailed description will be omitted. That is, the surface of the concrete 4 corresponds to the surface of the piece plate (1).

1 and 2(e), in the fifth step (S5), the cured concrete 4 is demolded from the mold 3, and the cured concrete 4 surface is washed. As described above, since the mold 3 is dried for a predetermined time so as not to be cured until the fifth step (S5), the cured concrete 4 is easily separated (deformed) from the mold 3.

In addition, in the case of drying for a predetermined time to facilitate mutual separation (demolition) between the concrete 4 cured in the fifth step (S5) and the mold 3, the concrete cured in the fifth step (S5) (4) ) After demolding from the mold 3, a part of the mold 3 (dried paste 2) may be attached to the surface of the cured concrete 4 (the surface where the pattern is formed by the mold 3) . At this time, it includes a process of removing a part (dried paste 2) of the mold 3 attached to the surface of the concrete 4 cured through washing.

That is, by drying the mold 3 for a predetermined time in the third step (S3), it is easy to separate (deform) the mold 3 and the cured concrete 4, and at the same time, the cured concrete 4 There is an advantage that surface cleaning can be facilitated. For example, washing may be spraying water of high water pressure.

3 is a diagram for explaining a protective film.

1 to 3, in the third step (S3) of the present pattern forming method, the paste 2 is dried for the predetermined time (the time when the mold 3 is not cured in the fifth step (S5)). And, in washing the surface of the cured concrete (4) after demolding the concrete (4) cured in the fifth step (S5) in the mold (3), the mold (3) from the surface of the cured concrete (4) Since some may be attached, water of a relatively high water pressure is sprayed (sprayed by the washing device W to be described later). In addition, if it is necessary to manufacture a plurality of patterned concrete (4) manufactured by this pattern forming method, since this pattern forming method is repeatedly performed, high water pressure is repeatedly applied to the washing device (W) (eg spray nozzle). Since it is applied, there is a risk of damage, warping, etc., so it needs to be properly protected.

Therefore, this pattern formation method introduces a protective film (G) provided on the outer surface of the washing device (W) as a protective means for the washing device (W). Specifically, referring to FIG. 3, the protective film G includes the penetration layer G1 in contact with the outer surface of the frame 13, the heating layer G2 and the heating layer G2 provided on the top of the penetration layer G1. It is characterized in that it may include a protective layer (G3) provided on the top.

This protective film (G) not only has excellent buffering and waterproofing effects on its own, but also heats at about 300°C when electricity is applied to the heating layer (G2), and the penetration layer (G1) melts to prevent micropores or fine curves on the outer surface. By sintering after filling, it not only has an improved bonding strength, but also prevents lifting, thereby providing more robust protection and waterproofing. (The attached drawings show exaggerated micropores and microbending)

In a specific embodiment, the penetration layer G1 includes 20 parts by weight of a polyvinyl acetate-based low-shrinkage agent and 50 parts by weight of a pressure-sensitive adhesive including a hydrogenated rosenester resin and polybutene, based on 100 parts by weight of polyethylene.

For each composition, polyethylene is a composition that is fractionated from petroleum naphtha, is added as a thermoplastic resin, and has been adopted in that it has excellent waterproofness and a melting point of about 130°C. Each composition of the permeable layer (G1) is determined based on 100 parts by weight of this polyethylene.

In addition, the polyvinyl acetate-based low-shrinkage agent is added as an anti-shrinkage agent to prevent a phenomenon in which excitation occurs due to excessive shrinkage during sintering of the permeable layer G1. It is preferable to include 20 parts by weight of the polyvinyl acetate-based low-shrinkage agent. If it is less than the above range, the effect of preventing shrinkage is insufficient, and if it exceeds the above range, there is a problem that sintering is not well.

In addition, the adhesive is added to strengthen the binding power of micropores and micro-bendings by imparting adhesiveness to the permeable layer (G1), and in particular, it includes hydrogenated ester of resin and polybutene. . Hydrogenated lozenester contributes to heat resistance after sintering while imparting initial adhesiveness, and polybutene imparts adhesive properties. It is preferable to include 50 parts by weight of the pressure-sensitive adhesive, but if it is less than the above range, the adhesive strength decreases, and if it exceeds the above range, there is a problem that the adhesiveness after sintering rapidly decreases.

The penetration layer (G1) is formed by adding each composition to a polyethylene solution at a temperature of 130°C or higher at which polyethylene can be melted, stirring, and then sintering.

Next, the heating layer G2 includes 200 parts by weight of silver and 200 parts by weight of a functional binder including titanium dioxide and molybdenum disilicide relative to 100 parts by weight of ruthenium dioxide. It is characterized in that the heating layer (G2) is applied in the form of a paste over the penetration layer (G1).

For each composition, ruthenium dioxide is a platinum group transition metal, and is provided in a powder form to form a paste-shaped heating layer G2. If such ruthenium dioxide is used excessively, it is preferable that the heating temperature does not exceed 20% by weight relative to the total composition of the heating layer (G2) because it may damage the protective layer (G3) to be described later. Each composition of the heating layer G2 is determined based on 100 parts by weight of ruthenium dioxide.

In addition, silver (Ag) is a transition metal, like ruthenium dioxide, and is also provided in a powder form to form a paste-shaped heating layer G2. It is preferable that 200 parts by weight of silver be included, but when used in less than the above range, it is difficult for the heating layer G2 to have a sufficiently low resistance value for current generation, and when used in excess of the above range, the heating temperature becomes excessive. There is.

In addition, the functional binder is added for binding of ruthenium dioxide and silver, and additionally facilitates dispersion between components, shortens the heating saturation time and provides sustained heating effect. Functional binders include titanium dioxide and molybdenum disilicide, and titanium dioxide contributes to the continuation of the exothermic effect. In particular, molybdenum disilicide is a compound consisting of a molar ratio of molybdenum and silicon of 1:2, and has a high melting point, so that the heating layer (G2) The heating layer (G2) is prevented from melting during the heat generation of, and by forming silica under high temperature, the heating effect as well as the heating saturation time is significantly shortened. It is preferable to include 200 parts by weight of such a functional binder, but when used in less than the above range, the effect is insufficient, and when used in excess of the above range, the electric flow during high temperature heating is unstable.

The heating layer (G2) is such as ethylene glycol (terpene), butyl carbitol, ethyl cellosolve, ethylbenzene, isopropylbenzene, methyl ethyl ketone, dioxane, acetone, cyclohexanone, 3-methoxybutyl acetate, etc. It is prepared through a kneading process after mixing the compositions in an organic solvent.

Next, the protective layer (G3) contains 300 parts by weight of a filler including calcium carbonate and bentonite, 100 parts by weight of naphthenic oil, and 50 parts by weight of a heat-resistant agent including barium aluminate and zirconia relative to 100 parts by weight of butyl synthetic rubber. do.

For each composition, butyl synthetic rubber was adopted in that it has adequate cold resistance and heat resistance, has relatively high elasticity, and has excellent heat insulation effect. The protective layer (G3) is determined based on 100 parts by weight of butyl synthetic rubber.

And the filler contains calcium carbonate and bentonite. Calcium carbonate is used to add water resistance, and bentonite has a relatively excellent cation exchange ability to enable a solid bond, and when cracks occur in the protective layer (G3), moisture absorption It has the effect of preventing leakage while expanding through. In particular, all of the fillers are composed of a composition having excellent bonding strength, so that the protective layer (G3) and the penetration layer (G1) can be excellently compatible. The amount of the filler is not particularly limited, but it is preferable to include 300 parts by weight in terms of increasing bonding strength and economic efficiency.

And naphthenic oil is added as a plasticizer, and it is adopted in that it has little evaporation loss at high temperature, has excellent cold resistance, and can add an elasticity retention effect. It is preferable to include 100 parts by weight of such naphthenic oil, but when it is used in less than the above range, flexibility and workability are deteriorated, and when it is used in excess of the above range, the viscosity is excessively decreased, and thus the heating layer (G2) is operated. In addition, flow down occurs and a crying phenomenon of the protective layer G3 occurs.

In addition, the heat-resistant agent is added to add heat-resistant properties so that the protective layer G3 can withstand heat without melting of the heating layer G2, and in particular, the protective layer G3 can withstand a high temperature of 300°C or higher. The heat-resistant agent includes barium aluminate and zirconia, and barum aluminate is added as a binder that binds zirconia with other compositions, and zirconia has a melting point of about 2700° C., excellent resistance to rapid temperature changes, and at least 1000 It is added to allow the protective layer G3 to withstand low thermal conductivity, heat resistance, and fire resistance even under high temperatures of ℃ or higher. In particular, the protective layer G3 has a plurality of internal pores by the heat resistant agent, and these pores lower thermal conductivity and add heat resistance. It is preferable to include 50 parts by weight of the heat-resistant agent, but when used outside the above range, the heat-resistant property is rather deteriorated.

The protective layer G3 is prepared in a manner in which each composition is provided in a powder form and mixed with naphthenic oil, and may further include a predetermined functional additive if necessary.

As an embodiment of the construction of the protective film (G), a penetration layer (G1) is laminated on a test block in which micropores and fine bends are formed, and a heating layer (G2) is applied thereon, and then a protective layer is applied thereto. After stacking (G3), electricity was applied to the heating layer G2 to form a protective film G. As a result of enlarged observation of the cross section by cutting the test block on which the protective film G was formed, it was confirmed that the penetration layer G1 penetrated into the micropores and micro-bends and was cured. In addition, as a result of performing a cross-cut test, scratching test, and internal invasiveness test through water spraying on the formed protective film (G), the peeling rate was less than 0.5%, the breakage rate was less than 3%, and the internal No invasion was detected.

The present invention described above with reference to the accompanying drawings can be variously modified and changed by a person skilled in the art, and such modifications and changes should be construed as being included in the scope of the present invention.

Engraving plate: 1
Paste: 2
Mold: 3
Concrete: 4
Washing device: W

Claims (4)

The first step of manufacturing a engraving plate by engraving or embossing the plate material;
A second step of producing a paste by mixing the mortar and the setting retardant;
A third step of pouring the paste on the engraving plate and drying the paste for a predetermined time to prepare a mold;
A fourth step of curing by pouring concrete into the mold; And
A fifth step of demolding the cured concrete from the mold, and washing the cured concrete surface;
Method for forming a pattern on the concrete surface comprising a.
The method according to claim 1,
The predetermined time is a method of forming a pattern on a concrete surface, characterized in that the time when the mold is not cured in the fifth step.
The method according to claim 1,
The method of forming a pattern on a concrete surface, characterized in that the plate is an acrylic plate or a polycarbonate plate.
The method according to claim 1,
In the fifth step, the washing is performed by a washing device that sprays water, and includes a protective film provided on an outer surface of the washing device, wherein the protective film is a permeable layer in contact with an outer surface of the washing device, and an upper portion of the permeable layer. Including a heating layer provided in and a protective layer provided on the upper portion of the heating layer,
The permeable layer comprises 20 parts by weight of a polyvinyl acetate-based low-shrinkage agent and 50 parts by weight of a pressure-sensitive adhesive including a hydrogenated rosenester resin and polybutene, based on 100 parts by weight of polyethylene,
The heating layer includes 200 parts by weight of silver and 200 parts by weight of a functional binder including titanium dioxide and molybdenum disilicide, based on 100 parts by weight of ruthenium dioxide,
The protective layer comprises 300 parts by weight of a filler including calcium carbonate and bentonite, 100 parts by weight of naphthenic oil, and 50 parts by weight of a heat-resistant agent including barium aluminate and zirconia relative to 100 parts by weight of butyl synthetic rubber. How to form a pattern on a concrete surface.

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