KR100935413B1 - Manufacturing method of concrete block - Google Patents

Abstract

The present invention relates to a method of manufacturing a concrete block is inserted into the surface of the patterned phosphorescent plate that can guide the direction at night or fire.

Photoluminescent, concrete, block

Description

Manufacturing method of photoluminescent concrete block

The present invention relates to a method of manufacturing a concrete block is inserted into the surface of the patterned phosphorescent plate that can guide the direction at night or fire.

Patents have been applied for the development of artificial stone in which the aromatic induction display layer is formed. However, the artificial stone is made of an organic high molecular material, so that it may dissolve in a fire or generate harmful smoke, thereby substantially preventing the aromatic induction function. Accordingly, technologies for adding a flame retardant, etc. have been developed, but it is difficult to expect a great effect.

The present invention is to provide a manufacturing method for inserting a photoluminescent plate into a concrete block that can be directed in a relatively simple, continuous manner.

In another aspect, the present invention is to provide a method for producing a concrete block and a composition used therein so that the surface can be used as a surface material smooth.

The present invention relates to a concrete block in which a photoluminescent plate is inserted.

More specifically

a) injecting a lower mortar composition including 60 to 80% by weight of aggregate, 10 to 30% by weight of portland cement, 1 to 10% by weight of water, and 0.1 to 0.5% by weight of admixture to the molding machine;

b) first compressing the lower mortar composition using a 20 to 40 ton hydraulic cylinder;

c) injecting an upper mortar composition including 40 to 50% by weight of aggregate, 20 to 40% by weight of alumina cement, and 10 to 30% by weight of water on the compressed mortar;

d) second compressing the upper mortar composition by using a hydraulic cylinder of 40 to 60 tons;

e) placing the photoluminescent plate on the upper mortar pressing surface using a photoluminescent plate input device;

f) using a hydraulic cylinder of 150 ~ 300 tons for 1 to 20 seconds to compress the photoluminescent plate being integrated;

g) curing after demolding;

It relates to a method of manufacturing a concrete block having a photoluminescent plate comprising a.

The present invention relates to a method for producing a concrete block made continuously in one rotating plate of the steps a) to f) are circular.

In another aspect, the present invention relates to a method of manufacturing a concrete block to form a protrusion on the surface by using a compression plate formed with irregularities during compression using the hydraulic cylinder in step f).

In addition, the phosphorescent plate input device of step e) is lowered to a predetermined position by using a hydraulic pressure and a transmission device.

In the present invention, the upper mortar composition may further include one or more additives selected from pigments, admixtures, strength enhancers, and anti-cracks, wherein the pigments are used in an amount of 1 to 10 wt% and 0.1 to 5 wt%.

In the present invention, the luminescent plate is melted the upper layer composition containing 20 to 40 parts by weight of the phosphorescent pigment with respect to 100 parts by weight of the composition of 40 to 70% by weight of polyethylene or polypropylene, 30 to 60% by weight of the glass powder Pouring into the mold to cure;

Melting the lower layer composition comprising 30 to 50% by weight of polyethylene or polypropylene, 50 to 60% by weight of calcium carbonate, and 1 to 10% by weight of titanium dioxide, followed by curing by pouring on the upper layer composition;

It is prepared to include.

The present invention can be used as a sidewalk block of the bottom, when forming a projection on the surface can be used in the direction-induced by inserting into the braille block for the blind.

The method of manufacturing a photoluminescent concrete block according to the present invention can provide a manufacturing method of inserting a photoluminescent plate capable of guiding a direction into a concrete block in a relatively simple and continuous method.

In addition, the concrete block according to the present invention, by embedding or inflowing the photoluminescent plate in the surface recess of the concrete product that can be immediately demountable, by using light energy accumulated at night or blackout accident, fire occurrence for a long time during walking It can be applied as a guide plate, and in particular, it can be inserted into a blind block or blind braille block.

Next, each configuration of the present invention will be described in more detail with reference to the accompanying drawings.

As shown in FIG. 1, the photoluminescent concrete block according to the present invention first comprises 60 to 80% by weight of aggregate, 10 to 30% by weight of portland cement, 1 to 10% by weight of water, and 0.1 to 0.5% by weight of admixture. Mortar composition is put into the molding machine (S1). Next, the pressure is applied to the lower mortar composition to be compacted using a hydraulic cylinder (S2). Next, the upper mortar composition including 40 to 50% by weight of aggregate, 20 to 40% by weight of alumina cement, and 10 to 30% by weight of water is added to the upper portion of the compressed lower mortar (S3). Next, a pressure is applied to the lower mortar composition to be compacted using a hydraulic cylinder (S4). Next, a pre-molded photoluminescent plate is inserted into the compressed upper mortar (S5). At this time, the photoluminescent plate inserting device uses the one manufactured to be accurately lowered to a predetermined position using a hydraulic pressure and an electric transmission device (not shown). Next, when the photoluminescent plate is put in place, it is compressed for 1 to 20 seconds using a hydraulic cylinder of 150 to 300 tons so that the photoluminescent plate is integrated and compressed (S6). At this time, the moisture mixed in the mortar of the upper layer is absorbed into the lower layer by the last compression force, the water content of the whole product is leveled, and the surface is very smooth. In addition, when compressing the compression plate formed in the groove in the last compression step to the upper surface may be produced a braille block formed with projections. After demolding the concrete block thus manufactured, it undergoes a curing process. At this time, the demolding is demolded from the mold while being pushed upward by the force of the air cylinder (not shown) installed at the bottom of the block. The demolded block is mounted on a rack to move on the automatic conveyor belt to the curing room. The curing process is defined as curing conditions used in the manufacture of general concrete.

In the present invention, the lower mortar composition includes 60 to 80 wt% of aggregate, 10 to 30 wt% of portland cement, 5 to 10 wt% of water, and 0.1 to 0.5 wt% of admixture. The aggregate has a maximum particle diameter of 13 mm or less, more specifically, 0.1 to 13 mm of natural aggregate or crushed aggregate, and is used in the range of 60 to 80% by weight. Since the lower layer should be reinforced in strength, it is desirable to have a high content of aggregate. As the admixture, for example, a concrete water reducing agent may be used, and any other admixture may be used without limitation. Admixture serves to lower the ratio of water and cement, it is preferable to use in the range of 0.1 to 0.5% by weight.

The lower mortar composition is preferably 5 to 10% by weight of water. If less than 5 wt% inhibits the hydration of concrete due to lack of moisture, and if it exceeds 10 wt% it is impossible to absorb the moisture discharged from the upper layer can not be molded of the product.

The upper mortar composition in the present invention comprises 40 to 50% by weight aggregate, 20 to 40% by weight alumina cement, 10 to 30% by weight water. This may further include one or more additives selected from pigments, admixtures, strength enhancers and anti-cracking agents as necessary, wherein the pigment is 1-10 wt%, the admixture is 0.1-5 wt%, and the strength-enhancer is 0.5-5% of cement. 2%, crack inhibitor is used in the range of 0.1 to 0.3% by weight of cement.

Aggregate uses natural sand and artificial sand with a particle size of 0.1 ~ 3mm, 40 to 50% by weight. Since the upper mortar composition is a part exposed on the surface, it is preferable to form a smooth surface, and to do so, it is preferable to increase the cement content rather than the aggregate content. Water is preferably used in a large amount compared to the lower mortar composition, specifically 10 to 30% by weight. If the water content is less than 10% by weight, the pigment, aggregate, and cement are not sufficiently mixed, so the surface state is not smooth. If the water content is more than 30% by weight, the water content in the concrete may be high and the durability may be weakened.

The pigment may be used an organic pigment that is commonly used, it is preferable to use in the range of 1 to 10% by weight. The admixture can be used without limitation so long as it is a commonly used admixture. The admixture is preferably used in the range of 0.1 to 0.5% by weight.

The strength enhancer can be used without limitation as long as it is a commonly used strength enhancer and is preferably used in the range of 0.5 to 2% by weight relative to the cement content.

The crack preventing agent, for example, may be used, such as glass fibers or nylon fibers, it is preferable to use in the range of 0.1 to 0.3% by weight relative to the cement content.

In the present invention, the lower mortar composition uses portant cement, and the upper mortar composition uses alumina cement because the lower portland cement is used at a lower price and the supply and demand is smooth. Silver is expensive, but because it is excellent in the chromaticity expression rate when the pigment is blended, it is used in the surface layer, and wear resistance is relatively superior to Portland cement.

Next, the configuration of the photoluminescent plate used in the present invention, the photoluminescent plate is a phosphorescent pigment 20 with respect to 100 parts by weight of the composition mixed 40 to 70% by weight of polyethylene or polypropylene, 30 to 60% by weight of glass powder Melting and curing the upper layer composition including about 40 parts by weight to a mold;

Melting the lower layer composition comprising 30 to 49% by weight of polyethylene or polypropylene, 50 to 60% by weight of calcium carbonate, and 1 to 10% by weight of titanium dioxide, followed by curing by pouring on top of the upper layer composition;

Including the molded in various forms of plate, including.

The lower layer is white to improve the color expression of the photoluminescent light, and the photoluminescent pigment and glass powder are used only for the upper layer.

In the present invention, the photoluminescent plate is preferably an upper layer having a thickness of 2 to 3 mm and a lower layer of 5 to 7 mm. When the thickness of the photoluminescent plate is 2 mm to 3 mm, sufficient photoluminescent efficiency can be achieved. Even if it exceeds 3 mm, since the photoluminescence efficiency does not increase any more, it is preferable to manufacture the said thickness in consideration of manufacturing cost.

Thermoplastics use polyethylene or polypropylene. It can be used to produce the pelletized product, the content is used in the range of 30 to 50% by weight for the lower layer, 20 to 40% by weight for the upper layer. In the case of using less than the content range, the bonding strength is weak, and if it exceeds the above range there is a fear of deformation after curing.

The photoluminescent pigment used in the material of the photoluminescent plate absorbs and accumulates light such as sunlight or fluorescent light, and has a characteristic of long-term extubation in a dark place. Inorganic phosphorescent pigments are used which are at least one activated alkaline earth metal aluminate composite selected from the group consisting of terbium and ytterbium. More preferably, as the photoluminescent pigment of the present invention, Y ₂ O ₂ S: Eu (red), BaMg ₂ Al ₁₆ O ₂₇ : Eu (green), Sr ₅ (PO ₄ ) ₃ Cl: Eu (blue), Sr ₄ Al ₁₄ It is preferable to use a compound represented by O ₂₅ : Eu (blue green) or SrAl ₂ O ₄ : Eu (green). Eu is europium.

The glass powder is used to improve the photoluminescence function and surface hardness, and further improve the visibility when reflected by light, it is preferable to use a specific surface area of 2000 cm 2 / g or more. It is preferable to use the content in the range of 30 to 50% by weight, and when used in less than 30% by weight, the surface hardness and transparency are inferior, and when it exceeds 50% by weight, additional injection of a pigment is required.

The calcium carbonate is used to increase the photoluminescent power of the upper photoluminescent layer and to increase the strength of the resin, to maintain the form, the content is preferably used in the range of 50 to 60% by weight, it is used in less than 50% by weight In the case of deformation, there is a fear of deformation, and when it exceeds 60% by weight, there is a fear that the binding force is lowered.

The titanium dioxide is used to improve whiteness, and when used in the range of 1 to 10% by weight, the titanium dioxide may be molded into a plate having increased whiteness without affecting other components.

By melt-extrusion molding in the same manner as described above, the photoluminescent plate can be molded into a desired shape as required.

Figure 2 shows a cross section of the inserted concrete block which is a photoluminescent plate according to the present invention. That is, the lower layer 10 and the upper layer 20, and the upper layer 20 is a block 100 is inserted into the photoluminescent plate 30 molded in advance (molded in the form of numbers, letters or figures). A perspective view thereof is shown in FIG. 4.

 In addition, as shown in FIG. 3, the lower layer 10 and the upper layer 20 are formed, and the preformed photoluminescent plate 30 is inserted into the upper layer 20, and the protrusions 40 are formed on the surface of the upper layer 20. ) May be formed may be manufactured as a braille block 200 for the disabled. A perspective view thereof is shown in FIG. 5.

Figure 1 shows a process for producing a photoluminescent concrete block of the present invention.

2 is a cross-sectional view of the photoluminescent concrete block of the present invention.

3 is a cross-sectional view of the photoluminescent concrete block of the present invention.

4 is a perspective view of a photoluminescent concrete block of the present invention.

5 is a perspective view of a photoluminescent concrete block of the present invention.

Description of the main parts of the drawing

10: lower mortar 20: upper mortar

30: photoluminescent plate 40: projection

100: general block 200: braille block

Claims (8)

a) injecting a lower mortar composition including 60 to 80% by weight of aggregate, 10 to 30% by weight of portland cement, 1 to 10% by weight of water, and 0.1 to 0.5% by weight of admixture to the molding machine; b) first compressing the lower mortar composition using a 20 to 40 ton hydraulic cylinder; c) injecting an upper mortar composition including 40 to 50% by weight of aggregate, 20 to 40% by weight of alumina cement, and 10 to 30% by weight of water on the compressed mortar; d) second compressing the upper mortar composition by using a hydraulic cylinder of 40 to 60 tons; e) a phosphorescent pigment 20 having a shape on the upper mortar pressurized surface by using a photoluminescent plate injection device, and based on 100 parts by weight of a composition in which 40 to 70% by weight of polyethylene or polypropylene and 30 to 60% by weight of glass powder are mixed. ~ 40 parts by weight of the upper layer composition is melted and poured into a mold to harden, melt the lower layer composition comprising 30 to 49% by weight of polyethylene or polypropylene, 50 to 60% by weight of calcium carbonate, 1 to 10% by weight of titanium dioxide Placing a two-layer photoluminescent plate which is then poured and cured on top of the upper layer composition; f) compressing by using a hydraulic cylinder of 150 to 300 tons for 1 to 20 seconds to be integrated while the photoluminescent plate is integrated, so that the moisture of the upper mortar composition is absorbed into the lower layer and the surface is smooth; g) curing after demolding; Method of manufacturing a photoluminescent concrete block comprising a. The method of claim 1, The method of manufacturing a photoluminescent concrete block made of a continuous rotating plate of the steps a) to f) are circular. The method of claim 1, When the compression using the hydraulic cylinder in the step f), the manufacturing method of the photoluminescent concrete block to form a projection on the surface by using a compression plate formed with irregularities. The method of claim 2 or 3, Wherein the light-emitting plate injector of step e) is a manufacturing method of the photoluminescent concrete block to be lowered to a predetermined position by using a hydraulic and a transmission. The method of claim 1, The upper mortar composition is a method of producing a photoluminescent concrete block further comprises one or more additives selected from pigments, admixtures, strength enhancers, anti-cracking agents. The method of claim 5, The pigment is 1 to 10% by weight, admixture is 0.1 to 5% by weight, strength enhancer is 0.5 to 2% by weight of cement weight, cracking agent is used to manufacture a photoluminescent concrete block used 0.1 to 0.3% by weight of cement weight . delete The method of claim 1, The thickness of the upper layer of the photoluminescent plate is 2 ~ 3mm, the lower layer 5 ~ 7mm manufacturing method of the photoluminescent concrete block.

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