KR20120090729A - Surface treatment method of cement block and cement block using the same - Google Patents

Abstract

PURPOSE: A surface treating method of cement blocks and a surface-treated cement block are provided to form a surface treated layer by fixing various surface treating members to the surface of the block, thereby giving various functions and beautiful outlook. CONSTITUTION: A surface-treated cement block(10) comprises a main body(20) and a surface treatment layer(30). The main body is formed into a dough composition including the cement. The surface treated layer is formed in a single-side of the main body, and has a surface treatment material. The surface treated material is attached to the main body by using a binder. The surface treated material is a reflector. A surface treating method of the cement block comprises the following steps: molding the main body; coating the binder on top of the main body and compressing the surface treated material; forming a surface treated layer on top of the main body; and curing by separating the main body from the molding frame.

Description

Surface treatment method of cement block and cement block using the same}

The present invention relates to a method for treating a surface of a cement block and to a surface treated cement block, and more particularly, by fixing various surface treatment members on the surface of the block to form a surface treatment layer, thereby making the appearance of the block beautiful and various. The present invention relates to a surface treatment method of cement blocks and surface treated cement blocks that can add functionality.

Currently, bricks generally used can be divided into two types: cement bricks and clay bricks. Clay brick is manufactured by mixing clay with water, vacuum-treating and extruding it to a certain standard, cutting it to a certain length, drying and baking.

The clay brick thus prepared can be easily purchased in large quantities, and is widely used because of its excellent physical properties such as strength and durability of the finally produced product. However, because clay brick is fired at a relatively high temperature (1100 ~ 1250 ℃), the consumption of thermal energy is large, and there is a problem such as a defective product occurs in the manufacturing process. In addition, all the walls are constructed of clay brick has a problem that the color is simple and the surface is smooth in red color.

Cement bricks are composed of aggregate components and cement. Aggregate components are classified into sand, fine aggregates such as royal sand, and coarse aggregates such as stones and gravel. In general, in the case of cement brick, when the aggregate is used as the aggregate component, the constituents of the brick become uneven, which causes problems in the strength of the brick, and thus, aggregate is mainly used.

The cement component serves to bond the aggregate particles after they are closely disposed and cured between the aggregate particles. In order to manufacture such a cement brick, the aggregate component and the cement component are mixed in a predetermined ratio, mixed by adding an appropriate amount of water, and then the mixture is poured into a brick mold and compressed, and when the mixture is solidified, the mixture is removed and dried.

Such cement brick has a problem that the surface is rough and lacks natural beauty due to the color of cement, and the texture thereof is also low. Due to this problem, after the walls are constructed with cement bricks, they are finished by plastering with cement mortar.

The present invention has been made to improve the above problems, by forming a surface treatment layer on one surface of the block to beautify the appearance of the block and add a variety of functionality surface treatment method and surface-treated cement block The purpose is to provide.

The surface-treated cement block of the present invention for achieving the above object is formed with a dough composition comprising cement; And a surface treatment layer formed on one surface of the body and having a surface treatment member attached to the body by a binder.

The surface treatment member is characterized in that the reflector for reflecting light.

And the surface treatment method of the cement block is a molding step of molding the main body by injecting a dough composition containing cement into the molding die; Surface treatment step of forming a surface treatment layer on the upper portion of the main body by pressing the surface treatment member with a pressure plate after applying the binder to the upper portion of the main body in the state that the main body is accommodated in the molding frame Wow; And curing the main body by separating and curing the mold from the mold.

In the molding step, the dough composition is characterized in that it contains 4 to 12 parts by weight of kaolin, 0.05 to 1.0 parts by weight of lignin based on 100 parts by weight of the cement.

As described above, according to the present invention, a surface treatment layer may be formed by attaching various surface treatment members such as a reflector or a ceramic capable of emitting far infrared rays or anions to the surface of the cement block.

Therefore, the surface treatment layer can add a variety of functionality while at the same time beautiful appearance of the cement block.

In addition, the use of colored mortar as a binder can realize the surface treatment layer in various colors.

1 is a perspective view of a cement block according to an embodiment of the present invention,
2 is a view schematically showing a molding machine for forming a block,
3 and 4 are views showing a process for forming the main body for forming the cement block of Figure 1,
5 is a perspective view showing a construction state of the cement block according to another embodiment of the present invention.

With reference to the accompanying drawings will be described in detail with respect to the surface treatment method and the surface-treated cement block of the cement block according to an embodiment of the present invention.

Referring to FIG. 1, the cement block of the present invention includes a main body formed of a dough composition and a surface treatment layer formed on one surface of the main body. The surface treatment method for producing such a cement block includes a molding step, a surface treatment step, and a curing step.

Hereinafter, a method of surface treating a cement block according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4.

First, a dough composition is prepared to carry out the molding step.

The dough composition is composed of, for example, cement, kaolin, and lignin. Preferably it is composed of 4 to 12 parts by weight of kaolin and 0.05 to 1.0 part by weight of lignin based on 100 parts by weight of cement. If the content of kaolin is less than 4 parts by weight, the strength is lowered. If it exceeds 12 parts by weight, the moldability is lowered. And when the content of lignin is less than 0.05 parts by weight, the strength is lowered, and when it exceeds 1.0 parts by weight, the water absorption is lowered.

As cement, conventional Portland cement can be used. Kaolin (kaolin) is a main component by halo site _{(Al 2 O 3? SiO 2} ? 4H 2 O) and kaolinite _{(Al 2 O 3? 2SiO 2} ? 2H 2 O) , and the white clay that is mainly used as a raw material for ceramics it means. In addition to halosite and kaolinite, kaolin contains vermiculite and illite, trace amounts of Fe ₂ O ₃ , MgO, CaO, K ₂ O, TiO ₂ , MnO and the like.

Lignin is a polymer compound that is widely distributed in the mesenchymal layer and the primary cell wall of the plant cell wall and is one of the components constituting the plant cell wall together with cellulose and hemicellulose. The chemical structure of lignin is not clear, but it is estimated to be between C ₁₈ H ₂₄ O ₁₁ and C ₄ 0H ₄₅ O _18, and is composed of phenine propane-type carbon skeleton with 3 carbons in the benzene ring. It is known that it is a polymer having a molecular weight of 50,000 or more with a branched structure bonded by a ring and a side chain [CR Yin, DI Seo, ST Lee, and YS Jin, Korean Society of Env. Eng., 22, 2197 (2000)].

Such lignin is the second most abundant organic matter after cellulose, but is rarely used in industry except as a fuel, and it is an environmental pollution problem because it is generated as a by-product of pulp industry and is not easy to decompose.

By using lignin in the present invention, it is possible to greatly increase the strength of the block by increasing the bonding strength of the cement. In addition, it is possible to reduce the amount of harmful cement and at the same time can recycle lignin, a by-product of the pulp industry, which is environmentally friendly. In the present invention, it is possible to use a liquid product which is commercially available as lignin (Taewang Trading).

Another embodiment of the dough composition may further contain ocher. For example, 4 to 12 parts by weight of kaolin, 0.05 to 1.0 part by weight of lignin, and 100 to 200 parts by weight of ocher, based on 100 parts by weight of cement.

Ocher contains calcium carbonate (CaCO ₃ ), silica (SiO ₂ ), alumina (Al ₂ O ₃ ), iron, magnesium (Mg), sodium (Na), kali (K ₂ O), etc., mainly 0.05 ~ 0.01mm It is a yellow mineral made up of silt particles. It is excellent in disinfecting and eliminating toxic substances. It is excellent for neutralizing harmful substances. In addition, ocher has a beneficial effect on the human body, such as promoting the blood circulation and metabolism because it radiates a large amount of far infrared rays. In addition, it is possible to express various colors in the cement block according to the amount of ocher added.

Another example of the dough composition is 4 to 12 parts by weight of kaolin, 0.05 to 1.0 part by weight of lignin, and 100 to 200 parts by weight of aggregate based on 100 parts by weight of cement. It is preferable to use sand and stone powder together as aggregate. If stone powder is used together with sand, the strength can be improved. Stone meal can use 40-100 mesh particle size. As an example of aggregate, sand: stone powder has a weight ratio of 0.6 to 1: 1.

Another embodiment of the dough composition may be composed of 4 to 12 parts by weight of kaolin, 0.05 to 1.0 parts by weight of lignin, 100 to 200 parts by weight of ocher, and 100 to 200 parts by weight of aggregate based on 100 parts by weight of cement.

When the dough composition described above is ready, water is added to form the body after kneading. Molding of the body can be performed in various ways. For example, it may be molded using a vibratory pressure molding machine as shown in FIG.

The molding die 7 with the upper part opened is installed in the base part 2 which can be elevated by the cylinder 1. The mold 7 vibrates in the vertical direction by the rotation of the rotary shaft 5 provided with the eccentric weight. The rotary shaft 5 rotates by receiving power from the electric motor 3 by suitable power transmission means such as a belt. Since such a vibration pressure molding machine is a known technique, a detailed description thereof will be omitted. In addition, it is a matter of course that the main body can be molded using a conventional hydraulic press.

The prepared dough composition is injected into the mold 7 of the vibration press molding machine a predetermined amount and then the pressure plate 9 is lowered while applying vibration to the mold 7. The descending pressure plate 9 enters into the mold 7 to compress the dough composition. After the molding of the main body 20, the pressing plate 9 is raised, and then a surface treatment step of forming the surface treatment layer 30 on the upper part of the main body 20 is performed.

In the present invention, the surface treatment step is performed immediately after the molding of the main body 20. That is, the main body 20 is made in the state accommodated in the molding die 7. As such, the curing of the main body 20 may be performed before the curing of the main body 20, instead of performing the surface treatment step separately, thereby solidifying the coupling between the main body 20 and the surface treatment layer 30.

The binder 31 is applied to the upper portion of the main body 20 in a state where the main body 20 is accommodated in the mold 7 to perform the surface treatment step.

As a binder, mortar kneaded by mixing cement and water may be used. Mortar may further be added with pigments to implement various colors. In addition, it is a matter of course that a conventional inorganic binder can be used as a binder. The binder may be applied to the top of the body in a thickness of 1 to 10 mm. The method of spraying the binder may be applied by the application method. In addition, the binder may be applied directly to the upper part of the body or a certain amount of binder may be poured into the mold.

The surface treatment member 35 is sprinkled with the binder 31 applied to the upper portion of the main body 20. As the surface treatment member 35, a reflector, ceramic, marble powder, granite powder, or the like may be applied.

The reflector is used to reflect the light at night to create beautiful scenery and increase visibility. Glass beads can be used. Glass beads may use particles of 50 to 150 μm. Preferably, calcite is mixed with glass beads and used as a reflector. Glass beads and calcite are preferably mixed in a weight ratio of about 5: 1-5. The calcite is used to increase the reflectivity of the glass beads, using particles having the same size as the glass beads. The calcite is a carbonate anhydrous mineral belonging to the hexagonal system, in the present invention, the calcite is disposed in the vicinity of the glass bead particles to refract the light reflected from the glass bead to increase the brightness at the block surface to improve visibility. In addition, it is possible to improve visibility by diffusely reflecting light during the day.

And it uses a material capable of emitting anion or far infrared rays as ceramic.

Negative ions increase the ionization rate of minerals and the like in the blood to alkalinize the blood, purify the blood, promote the exchange of electrical substances in the cell membrane, activate the metabolism, and quickly discharge the waste products in the body. In addition, by increasing the amount of immune components in the serum to increase resistance and activate the autonomic nervous system, blood and lymphatic fluid. Examples of ceramics that emit such anions include tourmaline, guinea pigs, higerions, ganban stones, macsumite, germanium, and the like.

And when far-infrared radiation is radiated to the human body, it penetrates deep into the skin to 4 ~ 5cm and activates the tissue through vibrations that vibrate the cells more than 2000 times in 60 seconds. Wastewater and toxic substances are discharged by the effect obtained by releasing thermal energy through such cellular action, and blood purification is performed by decomposing thrombi and promoting blood circulation. As such far-infrared ceramics, silica minerals such as diatomaceous earth or silica sand, clays of kaolinite, germanium, monazite, higerion, elvan and the like can be used.

Far-infrared radiation ceramics and anion radiation ceramics may be used alone or in combination.

After spraying the surface treatment member 35, the pressure plate (9) is lowered to enter the pressure plate (9) into the mold (7). At this time, the pressure plate 9 is pressurized only to the extent that the upper portion of the main body 20 can be slightly pressed. As a result, a part of the surface treatment member 35 is embedded in the binder 31 to increase the contact area with the binder 31 to improve the bonding force and to flatten the upper portion of the surface treatment layer 30.

As described above, the surface treatment layer 30 may be formed on the upper portion of the main body 20, and then the main body 20 may be separated from the molding die 7 and cured to prepare the surface-treated cement block 10. . Curing can be carried out by conventional curing methods. For example, it may be dried by curing for about 5 to 30 days, or may be dried after steam curing for 1 to 3 hours.

The cement block 10 manufactured as described above may be made of a brick having a cube shape as shown in FIG. 1. In addition, the cement block of the present invention can be utilized for various purposes, such as sidewalk block, raft block, retaining wall block, vegetation block.

An example utilized as the retaining wall block 40 is shown in FIG. 5. The block 40 is successively stacked left and right and up and down to form a retaining wall. Each block 40 has a surface treatment layer 50 formed on the front surface of the body 45. In the case of using a reflector as a surface treatment member, the retaining wall reflects light from the front, thereby improving visibility and creating a beautiful night view.

As described above, the present invention has been described with reference to one embodiment shown in the drawings, which is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible. .

Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (4)

A main body formed of a dough composition comprising cement;
And a surface treatment layer formed on one surface of the body and having a surface treatment member attached to the body by a binder. The surface-treated cement block according to claim 1, wherein the surface treatment member is a reflector reflecting light. A molding step of molding a main body by injecting a dough composition including cement into a molding die;
Surface treatment step of forming a surface treatment layer on the top of the main body by pressing the surface treatment member with a pressure plate after applying the binder to the upper portion of the main body in the state that the main body is accommodated inside the molding frame Wow;
And a curing step of curing the main body by separating the mold from the mold. The method according to claim 3, wherein the dough composition in the forming step contains 4 to 12 parts by weight of kaolin and 0.05 to 1.0 parts by weight of lignin based on 100 parts by weight of the cement.

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