KR20200022314A - Curing fabric for concrete toxic control and toxic controlled concrete curing method using the same - Google Patents

Abstract

The present invention relates to a curing fabric for controlling the toxicity of concrete. More specifically, the present invention relates to: a curing fabric for controlling the toxicity of concrete which has a uniform temperature distribution, is excellent in flexibility to have an excellent adhesion when applied to a concrete structure having a step, is possible for concrete curing even in the winter season, and at the same time, is possible for uniform curing even inside the concrete, and also has an effect of controlling toxicity of the concrete when curing concrete; and a toxicity-controlled concrete curing method using the same.

Description

Curing fabric for concrete toxic control and toxic controlled concrete curing method

The present invention relates to a curing fabric for controlling the toxicity of concrete, and more particularly, has a uniform temperature distribution, excellent flexibility, and excellent adhesion when applied to a concrete structure having a step, which allows curing of concrete even in winter and at the same time inside the concrete. The present invention relates to a concrete toxic control curing fabric and a toxic control concrete curing method through which uniform curing is possible and concrete toxic control is possible.

In general, in the construction of concrete structures, concrete is made of cement, aggregate, and water as the main constituent materials, and has a certain strength as it is cured by hydration of cement.

On the other hand, if the concrete is not strong enough before the temperature of the concrete falls below the freezing point due to lack of proper thermal curing operation in placing concrete in the winter, the moisture inside the concrete is frozen and the volume expansion and movement of moisture The resulting pressure causes cracks in the concrete and makes it impossible to continuously increase the strength. Therefore, in general, the period in which the average outside air temperature is 4 ° C. or less is set as the period of application of the Korea-China concrete, and it is prescribed to provide proper thermal curing to ensure the required quality of the concrete.

In particular, concrete curing under extreme temperature conditions that can occur in extreme weather and cold and mountainous areas, which are a global issue, is difficult to control quality with current curing methods.

Insulating curing operation method for concrete to be poured in winter without exposing to the East Sea, and the conventional method mainly surrounds the surroundings of the structure to pour concrete using a temporary system and waterproofing tent, etc. A curing method for heating with a stove or a hot air fan has been mainly applied.

However, this method not only has a large heat loss such as a waterproofing tent, which is a cladding material, but also heats a large space in winter, and it is very difficult to maintain a constant temperature of the space. Since the curing speed of the concrete is not constant due to the temperature difference between the inside and the outside of the structure, there is a problem in that the degree of strength increase occurs. In addition, the use of lignite stoves is a case of suffocation of workers due to smoke and safety problems such as fire are serious.

In addition, in the conventional concrete curing method, there is a problem such as affecting the skin, bronchus, etc. due to the toxicity of the cured concrete, animals and plants die. For example, problems such as sick house syndrome, which causes headaches, fatigue, difficulty breathing, asthma, bronchitis, etc. are prevalent in residents of new buildings.

Accordingly, it has a uniform temperature distribution, excellent flexibility, and excellent adhesion when applied to a concrete structure having a step, it is possible to cure concrete even in winter, and uniform curing to the inside of the concrete, and the toxicity of concrete during concrete curing It is urgent to develop a concrete toxic control curing technology that can control the effect.

KR 10-1987-003950 A (published: 1987.05.06)

The present invention has been made to solve the above problems, the problem to be solved by the present invention, has a uniform temperature distribution, excellent flexibility and excellent adhesion when applied to a concrete structure having a step, concrete even in winter It is possible to cure at the same time to uniform curing to the inside of the concrete, and to provide a concrete toxic control curing fabric and the toxic control concrete curing method through the concrete toxic control effect that can be controlled during concrete curing.

In order to solve the above problems, the present invention is used for curing the concrete, and provides a curing material for controlling the toxicity of concrete, including carbon-based fibers that emit far infrared rays and emit anions when a current is applied.

According to an embodiment of the present invention, by attaching to a predetermined concrete curing frame, when curing the concrete, it may be possible to control the toxicity of the concrete.

In addition, the carbon-based fiber may have a resistance of 10 ~ 500kΩ.

In addition, the carbon fiber may have a far-infrared emissivity of 70% or more at a wavelength of 5 ~ 20㎛, far infrared radiation energy at 30 ~ 45 ℃ may be 1.0 × 10 ² W / ㎡ · ㎛ or more.

In addition, when the 220V AC voltage is applied, the time that the temperature of the heat generating fabric is 40 ℃ or more may be 30 seconds to 5 minutes.

In addition, when the 220V AC voltage is applied, the time that the temperature of the heating element is 70 ℃ or more may be 10 minutes to 60 minutes.

The carbon-based fiber may include a carbon doped layer including a fiber and carbon particles formed on at least part of a surface of the fiber and fixed to the binder.

In addition, the curing fabric may include at least one connection portion through which a current flows from the outside.

Also, incline; And a weft yarn, and may include the carbon-based fiber in any one or more of the warp yarn and the weft yarn.

In addition, one or more strands of the carbon-based fiber per one inch of the excretion direction of at least one of the warp and weft yarn may be disposed.

In addition, the warp and weft yarn may be arranged to weave each other, or the weft yarn may be disposed on the upper or lower slope.

In addition, it may further include a ground yarn provided to weave the warp and weft yarns.

In addition, the ground yarn may have a fineness of 30 ~ 350 De.

In addition, the ground yarn may have a melting point or a softening point of 190 ° C or less.

In addition, the warp and weft yarns may each independently have a fineness of 100 to 3,500 De.

In addition, the warp and weft yarns each independently selected from the group consisting of conductive fibers and at least one member selected from the group consisting of copper wire, nichrome wire, iron chrome wire, copper nickel wire and stainless steel wire, and polyester fiber It may further comprise more than one species.

In addition, when the inclined and weft yarns are arranged to weave each other, the inclined direction per inch may include 1 to 60 strands, and the weft direction per inch may include 1 to 60 strands, weft upper or lower weft When disposed, the inclined direction per inch may include 1 to 30 strands, and the weft direction per inch may comprise 1 to 30 strands.

In addition, in order to solve the above problems, the present invention comprises the steps of fixing the above concrete toxic control curing fabric to at least a portion of the concrete curing frame; Placing concrete in the concrete curing frame; It provides a toxic control concrete curing method comprising; and applying a current to the concrete toxic control curing fabric for curing the poured concrete to form a toxic control concrete.

The concrete toxic control curing fabric and the toxic control concrete curing method according to the present invention has a uniform temperature distribution, excellent flexibility and excellent adhesion when applied to a concrete structure having a step, it is possible to cure concrete even in winter Uniform curing is possible to the inside, and there is an effect that can control the toxicity of concrete when curing concrete.

1 is a cross-sectional view of the curing toxic fabric for controlling concrete toxicity according to an embodiment of the present invention,
Figure 2 is a top view showing the layout of the ground yarn in the concrete toxic control curing fabric according to an embodiment of the present invention,
Figure 3 is a top view showing the layout of the ground yarn in the concrete toxic control curing fabric according to another embodiment of the present invention,
Figure 4 is a top view showing the arrangement of the ground yarn in the concrete toxic control curing fabric according to another embodiment of the present invention, and
FIG. 5 is a test report for evaluation of fish toxicity for toxic control concrete cured through a curing toxic material for controlling concrete toxicity according to Example 1 and Comparative Example 1 of the present invention. FIG.

Hereinafter, an embodiment of the present invention will be described in detail so that a person skilled in the art can easily carry out the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

As described above, in the case of the conventional concrete curing method, there was a problem such as affecting the skin, bronchus, etc. due to the toxicity of the cured concrete, or animals and plants died, for example, headaches for residents in the new building Problems such as sick house syndrome, which cause fatigue, difficulty breathing, asthma and bronchitis, were widespread.

The present invention is used in the curing of the concrete, in order to solve such a conventional problem, by providing a curing agent for controlling the concrete toxic including carbon-based fiber that emits far infrared rays, and emits negative ions when a current is applied, We tried to solve the problem.

Accordingly, the curing material for controlling the toxicity of concrete according to the present invention may be attached to a predetermined concrete curing frame, and when the concrete is cured, it may be possible to control the toxicity of concrete.

First, the carbon-based fiber provided in the curing material for controlling the toxicity of concrete according to the present invention will be described.

Curing fabric for controlling the toxicity of concrete according to the present invention has the effect of controlling the toxicity of concrete during curing of the concrete due to the far-infrared emission of carbon-based fiber, and also the effect of uniform curing to the inside of the concrete Can be achieved. In addition, when the carbon-based fiber is applied current, concrete curing may be more advantageous as heat is generated, and concrete curing may be possible even in winter.

Specifically, the carbon-based fiber may be 70% or more far-infrared emissivity at a wavelength of 5 ~ 20㎛, preferably 80% or more of far infrared emissivity at a wavelength of 5 ~ 20㎛, more preferably 5 ~ 20 The far-infrared emissivity at the μm wavelength may be at least 90%. If the far-infrared emissivity of 5 to 20㎛ wavelength of the carbon-based fiber is less than 70%, concrete toxic control is not easy to control the concrete, it may cause a problem that the uniform curing to the inside of the concrete is impossible.

In addition, the carbon-based fiber may have a far-infrared radiation energy of 1 × 10 ² W / m 2 · µm or more at 30 to 45 ° C., and far infrared radiation of energy at 30 to 45 ° C. of 2 × 10 ² W / m 2 · µm or more. More preferably, the far-infrared radiation energy at 30 ~ 45 ℃ can be 3 × 10 ² W / ㎡ · ㎛ or more. If the far-infrared radiation energy at 30 ~ 45 ℃ of the carbon-based fiber is less than 1.0 × 10 ² W / ㎡ · ㎛ when the concrete curing is not easy to control the toxicity of the concrete, the uniform curing to the inside of the concrete is not a problem May occur.

In addition, the carbon-based fiber may have a resistance of 10 to 500 kPa, resistance may be 100 to 450 kPa, preferably 200 to 430 kPa, and more preferably 300 to 400 kPa. If the resistance of the carbon-based fiber is less than 10kΩ may cause a problem that does not uniformly cure to generate heat above the desired level, the toxic control of concrete is not easy, if the resistance exceeds 500kΩ when the current is applied Problems can occur that can not generate heat to the desired level, and the toxic control of concrete is not easy.

The carbon-based fiber may have an elastic modulus of 80 to 170 g / d, and preferably, an elastic modulus of 90 to 160 g / d. If the elastic modulus of the carbon-based fiber is less than 80 g / d may cause a problem that the fabric is stretched and elongated even a small force, if the elastic modulus exceeds 170 g / d, the concrete structure having a step as the flexibility is reduced When applied to the adhesion may be reduced.

In addition, the carbon-based fiber may have a fineness of 100 to 3,500 De, more preferably 150 to 3,000 De. If the fineness of the carbon-based fiber is less than 100 De may cause a problem that the heat generation performance is lowered, if the fineness exceeds 3,500 De may reduce the flexibility when applied to the concrete structure having a step, the adhesion may be reduced.

On the other hand, the carbon-based fibers are carbon fibers alone, fibers having carbon particles on at least part of the surface, fibers mixed with carbon fibers, fibers covered by carbon fibers, carbon fibers coated with a predetermined resin on at least a part of the surface, and the like. It is the meaning including all the fiber containing a carbon component.

Preferably, the carbon-based fiber provided in the curing material for controlling the toxicity of concrete according to the present invention may include a fiber and a carbon doped layer formed on at least part of the surface of the fiber.

In this case, the fiber may be used without limitation as long as the fiber can be used conventionally in the art, preferably may be polyester fiber, polyolefin fiber, polyamide fiber and acrylate fiber, and more preferably. Although polyester-based fibers may be used, any component that can satisfy the physical properties of the carbon-based fibers described above including the carbon doped layer may be used without limitation, and the present invention is not particularly limited thereto.

In addition, the carbon doped layer may be formed through a carbon doped layer-forming composition including carbon particles and a binder, the carbon doped layer may include a carbon particle fixed to the binder and the binder.

The binder may be used without limitation as long as it is a binder that can be used to fix the particles of the conventionally fixed in the art, preferably may include one or more selected from the group consisting of natural binders, inorganic binders and organic binders, More preferably, it may include one or more selected from the group consisting of inorganic binders and organic binders, and more preferably acrylic binders, urethane binders, fluorine binders, silicone binders, styrene binders, epoxy binders, and phenolic binders. It may include at least one selected from the group consisting of a binder, more preferably using an acrylic binder and / or a urethane-based binder of the organic binder, the carbon-based fiber exhibits the above-described physical properties for controlling the concrete toxicity Filial piety It may be more advantageous in terms of expressing the family.

In addition, the carbon particles may be used without limitation as long as the carbon material can be commonly used in the art, preferably carbon nanotubes, graphene, carbon fiber, carbon black, earth graphite, impression graphite, expanded graphite and artificial graphite It may include at least one selected from the group consisting of, and more preferably, at least one selected from the group consisting of carbon nanotubes, graphene, carbon fiber, carbon black, artificial graphite and impression graphite, carbon System fibers exhibit the above-described physical properties may be more advantageous in terms of expressing the desired effect of the curing material for controlling the toxicity of concrete according to the present invention.

In addition, the carbon doping layer forming composition may further include one or more selected from the group consisting of a solvent, a dispersant, a thickener and a coupling agent.

In this case, the solvent, the dispersant, the thickener and the coupling agent may be used without limitation, so long as it is a solvent, a dispersant, a thickener, and a coupling agent which can be used in the art, respectively, the present invention is not particularly limited thereto.

On the other hand, the curing material for controlling the toxicity of concrete according to an embodiment of the present invention is inclined; And weft yarns, including any of the carbon-based fibers in one or more of the warp yarns and the weft yarns.

Prior to describing the warp and weft of the concrete toxic control curing fabric according to the present invention, the arrangement width of the carbon-based fiber in the concrete toxic control curing fabric will be described.

The carbon-based fiber may be included in any one or more of the warp and weft, preferably in both the warp and the weft. In addition, the carbon-based fiber may be disposed at least one strand, preferably at least two strands per inch of the excretion direction of any one or more of the warp and weft yarn. If the carbon-based fiber is disposed less than 1 strand per inch of any one or more of the direction of the warp and weft yarns can not have a uniform temperature distribution to the desired level, may not be able to cure to the interior of the concrete may occur In the concrete curing process, toxic control of concrete may not be easy.

In addition, the curing material for controlling the toxicity of concrete according to another embodiment of the present invention may further include a conductive fiber in any one or more of the warp and weft yarn, preferably both the warp and weft yarns. In this case, the conductive fiber and the carbon-based fiber may be disposed in total of at least one strand, preferably at least two strands per one inch of the excretion direction of any one or more of the warp and weft yarn. If the conductive fiber and the carbon-based fiber is disposed less than a total of 1 strand per one inch in the excretion direction of any one or more of the warp and weft yarn can not have a uniform temperature distribution to the desired level, it can not be cured to the inside of the concrete Problems may arise.

On the other hand, the conductive fiber may be used without limitation as long as the conductive fiber can be commonly used in the art, preferably one or more selected from the group consisting of quartz wire, nichrome wire, iron chrome wire, copper nickel wire and stainless steel wire It may include.

Hereinafter, the inclination, weft yarn and curing fabric of the concrete toxic control curing fabric according to the present invention will be described.

The inclination may include carbon-based fibers as described above, and may further include conductive fibers, so that the inclination may be in electrical communication with the carbon-based fibers and / or conductive fibers which may be further included in the weft yarns to be described later. Can exert a fever function.

On the other hand, the inclination may further include polyester fibers in addition to the carbon-based fibers and the conductive fibers described above.

The inclination is not limited as long as the fineness that can be commonly used in the art, preferably the fineness may be 100 to 3,500 De, more preferably 150 to 3,000 De. If the fineness of the inclination is less than 100 De, there may be a problem that the heat generation performance is lowered as the thermal insulation performance is lowered, and if the fineness exceeds 3,500 De, the flexibility is reduced, the adhesion is reduced when applied to a concrete structure having a step Can be.

In addition, the weft yarn may include a carbon-based fiber as described above, may further include a conductive fiber, the carbon-based fiber and / or conductive fibers that may be further included in the above-described inclination Can be exerted to exothermic function.

On the other hand, the weft yarn may further comprise a polyester fiber in addition to the above-described carbon-based fibers and conductive fibers.

The weft is not limited as long as the fineness can be commonly used in the art, preferably the fineness may be 100 to 3,500 De, more preferably 150 to 3,000 De. If the fineness of the weft is less than 100 De, there may be a problem that the heat generation performance is lowered as the thermal insulation performance is lowered, and when the fineness exceeds 3,500 De, the adhesiveness is reduced when applied to a concrete structure having a step as the flexibility is reduced. Can be.

In addition, the curing fabric may further include a ground yarn, the ground yarn may be provided to weave the warp and weft yarn.

The ground yarn may be used without limitation as long as it is a fiber that can be commonly used in the art, and preferably may include one or more selected from the group consisting of nylon fibers, PET fibers and cotton fibers, and more preferably nylon fibers and It may include one or more selected from the group consisting of PET fibers.

In addition, the ground yarn may have a melting point or softening point lower than the above-described inclination and weft yarn, preferably 190 ° C. or less, and more preferably, melting point or softening point may be 185 ° C. or less. If the melting point or softening point of the ground yarn exceeds 190 ° C, only the ground yarn may not be selectively fused through a predetermined heat treatment, and the uniform temperature distribution may not be exhibited as the warp and weft yarn may be melted or softened first. May occur. Accordingly, the ground yarn provided in the concrete toxic control curing fabric may be provided in a fibrous form, or may be provided as a fusion welded through a predetermined heat treatment.

The ground yarn is not limited as long as the fineness can be commonly used in the art, preferably 30 to 350 De, more preferably 50 to 300 De. If the fineness of the ground yarn is less than 30 De, there may be a problem that the exothermic performance may be degraded because the thermal insulation performance may not be expressed at a desired level, and if the fineness exceeds 350 De, the concrete structure has a step as the flexibility decreases. When applied, the adhesion may be reduced.

On the other hand, the concrete toxic control curing fabric according to an embodiment of the present invention may include at least one connection portion to which a current is applied.

The connection part may be implemented using any material as long as it is commonly used in the art as a connection part. Preferably, the connection part may include one or more selected from the group consisting of the carbon-based fiber and the conductive fiber.

In addition, the connection portion may be provided at at least one end of any one or more of the inclined and weft yarn, preferably at both ends of any one or more of the inclined and weft yarn, or extends from a curing agent for controlling the concrete toxicity, and separately from the outside. It may be provided.

As the concrete toxic control curing fabric according to the present invention includes the connection portion, the carbon-based fibers and / or conductive fibers which may be further included in the concrete toxic control curing fabric when the current is applied are electrically connected to each other to generate heat. Function can be expressed.

On the other hand, the concrete toxic control curing fabric according to an embodiment of the present invention may be 30 seconds to 5 minutes when the temperature of the heating material is 40 ℃ or more when 220V AC voltage is applied, preferably 35 seconds to 4 Minutes, more preferably 45 seconds to 3 minutes. In addition, the curing material for controlling the toxicity of concrete according to an embodiment of the present invention may be 10 to 60 minutes when the temperature of the heating material is 70 ℃ or more when 220V AC voltage is applied, preferably 13 minutes to 50 minutes It may be more preferably 15 to 35 minutes. If the time for which the temperature of the heating element becomes 40 ° C or more is less than 30 seconds, or if the time for the temperature of the heating element becomes 70 ° C or more is less than 10 minutes, damage to the heating element occurs due to excessive heating temperature, and mechanical properties If the concrete curing is not easy to control the toxicity of the concrete, and if the time exceeds 5 minutes, or the time that the temperature of the exothermic fabric temperature is 70 ℃ or more exceeds 60 minutes, the concrete will be cured to the desired level. There may be a number of problems may occur, the work is not uniform during curing, and when the concrete is cured, it may cause a problem that the toxic control of concrete is not easy.

On the other hand, the inclined, weft and ground yarns provided in the curing control panel for concrete toxicity according to an embodiment of the present invention, the inclined and weft yarns are arranged to interweave, the ground yarn may be provided to weave the inclined and weft yarns. .

First, the organization of the fabric may be made by any one method selected from the group consisting of plain weave, twill weave, satin weave and double weave.

When the plain weave, twill and silk weave are three-way tissues, the specific weaving method of each of the three-way tissues is a conventional weaving method, and the fabric may be changed by modifying the tissue based on the three-way tissue or by combining several tissues. For example, a change plain weave is a weaving weave, a basket weave, etc. A change twill is a new work, a wave work, a non-twill, a mountainous twill, etc. There is this. The double weave is a method of weaving a fabric in which either one of the warp yarn or the weft is double or both of them is double, and a specific method may be a conventional double weaving method. However, it is not limited to the description of the fabric structure.

When the warp yarns and the weft yarns provided in the curing control panel for concrete toxicity of the present invention are arranged to be intertwined, and the ground yarns are provided to weave the warp yarns and weft yarns, the warp yarn 1 to 60 strands per 1 inch of warp direction, and weft direction It may include 1 to 60 strands of the weft per inch, preferably 3 to 58 strands of the warp per inch inclined direction, and 3 to 58 strands of the weft yarn per inch of weft direction. If the inclination is less than 1 strand per inch in the inclined direction, or the weft yarn is less than 1 strand per inch in the weft direction, the exothermic performance may be lowered as it can not express the desired level of thermal insulation performance, uniform temperature distribution When applied to a concrete structure having a step as the flexibility is lowered if the inclination exceeds 60 strands per inch in the warp direction or the weft yarn exceeds 60 strands per inch in the weft direction Adhesion may be reduced.

In addition, as shown in Figure 1, the warp yarn 10, the weft yarn 20 and the ground yarn 30 provided in the concrete toxic control curing fabric 100 according to another embodiment of the present invention, the slope ( 10) The weft yarn 20 is disposed above or below the ground yarn 30 may be provided to weave the warp yarn 10 and the weft yarn 20 as shown in FIGS. 1 to 4.

When the weft yarn is disposed in the upper or lower slopes provided in the curing toxic fabric for controlling concrete toxicity of the present invention, and the ground yarn is provided to weave the warp yarns and the weft yarns, the inclined direction is 1 to 30 strands per inch and weft direction 1 to 30 strands of the weft per inch may be included, and preferably 3 to 25 strands of the warp yarn per inch inclined direction, and 3 to 25 strands of the weft yarn per inch of weft direction. If the inclination is less than one strand per inch in the inclined direction, or the weft yarn is less than one strand per inch in the weft direction, as the heat insulation performance can not be expressed as the desired level can be reduced, the uniform temperature distribution Cannot be cured up to the inside of the concrete, and when the warp yarn exceeds 30 strands per inch in the warp direction or the weft yarn exceeds 30 strands per inch in the weft direction, when applied to a concrete structure having a step as flexibility decreases Adhesion may be reduced.

On the other hand, the toxic control concrete is cured according to the curing method described below through the curing material for controlling toxic concrete according to the present invention.

Specifically, the toxic control concrete, the step of fixing the above-mentioned concrete toxic control curing fabric to at least a portion of the concrete curing frame; Placing concrete in the concrete curing frame; And curing the poured concrete by applying a current to the concrete toxic control curing fabric to form the toxic control concrete.

At this time, at least one end of any one or more of the inclined and weft yarn, preferably provided at both ends of any one or more of the inclined and weft yarn, or extends from the curing control panel for concrete toxicity control separately provided to the outside The current application may be performed, and thus, the above-described carbon-based fiber and / or conductive fiber which may be further included in the curing material for controlling the toxicity of concrete may be electrically connected to each other to express a heat generating function.

The concrete toxic control curing fabric and the toxic control concrete curing method according to the present invention has a uniform temperature distribution, excellent flexibility and excellent adhesion when applied to a concrete structure having a step, it is possible to cure concrete even in winter Uniform curing is possible to the inside, and there is an effect that can control the toxicity of concrete when curing concrete.

Hereinafter, the present invention will be described through the following examples. At this time, the following examples are only presented to illustrate the invention, the scope of the present invention is not limited by the following examples.

[ Example ]

Example  1: for controlling concrete toxicity Curing  Produce

First, a carbon fiber having a fineness of 1,500 De having a carbon doped layer including carbon particles fixed to an acrylic binder and a urethane binder on a surface of PET fiber was prepared (CF1500, Vico). In this case, the resistance of the carbon fiber was 370 kΩ, the far infrared emissivity at 5-20 μm measured based on KCL-FIR-1005 was 90.1%, and the far infrared radiation energy at 40 ° C. was 3.63 × 10 ² W / m 2. The elasticity modulus was 127 g / d.

Then, the polyester fiber having a melting point of 260 ° C. and a fineness of 1,000 De is supplied, and the weaving yarn is supplied with a polyester fiber having a melting point of 260 ° C. and a fineness of 1,000 De, wherein the carbon-based fiber is 3 per inch of weft excretion direction. To arrange the strands, the weft was fed to the bottom of the inclined, and supplied to the ground yarns LM fiber having a melting point of 170 ℃ and a fineness of 75 De was prepared to weave the warp and weft as shown in Figure 4, both ends of the slope The fabric was manufactured so that the copper wire which is a conductive fiber is arranged as a connection part in the part. In this case, 15 strands of the warp yarn are disposed per inch of the warp direction, and 15 strands of the weft yarn are disposed of one inch of the weft direction. Then, heat treatment was performed at a temperature of 320 ° C. for 1 second to fuse the ground yarn to prepare a curing material for controlling concrete toxicity.

Example  2 to 16 and Comparative example  1 to 2

Manufactured in the same manner as in Example 1, except that carbon-based fiber resistance, far-infrared emissivity, far-infrared radiation energy, elastic modulus, type of carbon-based fiber, fineness of warp and weft, number of warp and weft per inch, ground yarn fineness, ground By changing the melting point of the company, including carbon-based fibers, etc. were prepared for curing the concrete toxicity control table as shown in Table 1 to Table 5.

Example  17

Preparation was carried out in the same manner as in Example 1, but the cured fabric for controlling the toxicity of concrete with a plain weave fabric so that the warp and weft were interwoven. In this case, 30 strands of the warp yarn were disposed per 1 inch of the warp direction, and 30 strands of the weft yarn were disposed per 1 inch of the weft direction.

Example  18 to 21

Preparation was carried out in the same manner as in Example 17, by changing the resistance, far-infrared emissivity, far-infrared radiation energy and elastic modulus of the carbon-based fiber to prepare a curing material for controlling the concrete toxicity as shown in the following table.

< Experimental Example  1>

For the concrete toxic control curing fabric prepared according to the above Examples and Comparative Examples, the temperature of any ten points on the concrete toxic control curing fabric prepared according to the Examples and Comparative Examples after measuring 220V AC voltage was measured, these By calculating the average value of the time was measured by the time the average value of the temperature reaches 40 ℃ is shown in Table 1 to Table 5.

< Experimental Example  2>

The above-mentioned horizontally and vertically 2,000 mm x 3,000 mm so as to be able to join the partition of the gang form main body to the gang form body which consists of a tetrahedron without the top and bottom which is 1,500 mm x 3,000 mm x 3 mm in size of 1 side. After bonding the curing toxic fabric for controlling concrete toxicity prepared through Examples and Comparative Examples, after curing the concrete for 9 hours at minus 10 ℃ conditions, the physical properties of the following are shown in Tables 1 to 5.

1. Evaluation of Concrete Curing Uniformity

For each of the cured concrete, sensory evaluation of concrete curing uniformity was performed by 10 experienced workers over 15 years in the field, and the concrete was cured at all 20 points. -◎, when concrete is cured at less than 20 or more than 18 points-○, when concrete is cured at less than 18 or more than 15 points-△, when concrete is cured at less than 15 points-by × Concrete curing uniformity was evaluated.

2. Evaluation of exothermic performance

During the curing of the concrete, the heat generation performance was evaluated by measuring the temperature at the 50cm point inside the gangform and concrete contact area.

At this time, high temperature indicates excellent heat generation performance, and low temperature indicates low heat generation performance.

After dividing the cured concrete in half in the vertical direction, the sensory evaluation on the concrete curing uniformity was performed by 10 people who have been in the field for more than 15 years, and the average value was evaluated through a 7-point scale. The degree of curing in the concrete was evaluated by the measurement.

< Experimental Example  3>

Curing material for controlling concrete toxicity produced through the above examples and comparative examples on a gangform body manufactured in a step shape such that a face having a width, length, and thickness of one surface having a thickness of 3,000 mm × 4,000 mm × 3 mm has a step of 30 cm. After bonding so as to cover the upper surface of the gangform body, the following physical properties were measured and shown in Tables 1 to 5 below.

1. Evaluation of adhesion

Through the gangform body bonded to the curing control material for toxic concrete control prepared through the Examples and Comparative Examples, by applying a current to the curing fabric for 9 hours at -10 ° C conditions for the concrete, each cured concrete The sensory evaluation of concrete curing uniformity was carried out by 10 persons with 15 years or more experience in the field, and the concrete was cured at all 20 points-◎, less than 20 18 When concrete is cured at more than one point-○, when concrete is cured at more than 10 points-less than 18-When cure is cured at less than 10 points-△,-By adhesive curing through concrete curing uniformity Evaluated.

< Experimental Example  4>

After adhering the curing toxic fabric for concrete toxicity control prepared in Examples and Comparative Examples to the concrete tank curing mold including the pouring space of 600 mm × 500 mm × 500 mm × 80 mm in width × length × height × thickness, The concrete was poured by curing the concrete by applying a current to the curing fabric for 24 hours in the sub-zero temperature 10 ℃ conditions, and after curing for 7 days at 23 ℃ (room temperature) to prepare each concrete tank.

One. Fish toxicity  evaluation

Each concrete tank prepared above was filled with tap water (dechlorination) by 85% of the total volume, and the water temperature was maintained at 26.5 ± 1.5 ° C., pH 8.0, and dissolved oxygen 75%, and a guppy having a length of 2 ± 1 cm was used. After 10 animals were put at 24 hours, 24 hours, 48 hours, 72 hours and 96 hours of goofy mortality (horses) was measured and shown in Tables 1 to 5 below.

division Example
One Example
2 Example
3 Example
4 Example
5 slope Polyester Fiber Fineness (De) 1000 1000 1000 1000 1000 Number of warp strands per inch 15 15 15 15 15 Weft Polyester Fiber Fineness (De) 1000 1000 1000 1000 1000 Carbon
fiber Fineness (De) 1500 1500 1500 1500 1500 Resistance (KΩ) 370 5 100 450 550 Far Infrared Emissivity (%) 90.1 88.1 90 90.3 90.5 Far Infrared Radiation Energy (× 10 ² W / ㎡ · ㎛) 3.63 3.13 3.58 3.67 3.69 Modulus of elasticity (g / d) 127 68 90 158 184 Batching width (strands per inch) 3 3 3 3 3 Weft Strands per Inch 15 15 15 15 15 Ground
Desa Melting Point (℃) 170 170 170 170 170 Fineness (De) 75 75 75 75 75 When 220V AC voltage is applied
40 ℃ reach time 2 minute, 43 seconds Within 30 seconds 44 seconds 3 minute, 17 seconds 4 minutes Concrete Curing Uniformity Assessment ◎ △ ◎ ◎ △ Exothermic performance evaluation (℃) 63 100 or more 80 52 43 Concrete Internal Curing Evaluation 6.8 2.1 6.5 6.3 5.5 Adhesion Evaluation ◎ △ ◎ ◎ △ Fish toxicity assessment 24 hours (mari) One 2 0 One 2 48 hours (mari) 0 One One 0 2 72 hours (mari) 0 One 0 0 0 96 hours (mari) 0 0 0 0 0

division Example
6 ¹⁾ Example
7 Example
8 Example
9 Example
10 slope Polyester Fiber Fineness (De) 1000 1000 50 150 3000 Number of warp strands per inch 15 15 15 15 15 Weft Polyester Fiber Fineness (De) 1000 1000 50 150 3000 Carbon
fiber Fineness (De) 1500 1500 50 150 3000 Resistance (KΩ) 0.00005 350 320 330 350 Far Infrared Emissivity (%) 87.8 90.1 90.1 90.1 90.1 Far Infrared Radiation Energy
(× 10 ² W / m 2 · µm) 3.09 3.62 3.62 3.62 3.62 Modulus of elasticity (g / d) 2700 127 120 122 150 Batching width (strands per inch) 3 0.5 3 3 3 Weft Strands per Inch 15 15 15 15 15 Ground
Desa Melting Point (℃) 170 170 170 170 170 Fineness (De) 75 75 75 75 75 When 220V AC voltage is applied
40 ℃ reach time Within 30 seconds More than 5 minutes More than 5 minutes 2 minute 52 seconds 2 minute, 45 seconds Concrete Curing Uniformity Assessment × △ × ◎ ◎ Exothermic performance evaluation (℃) 100 or more 35 20 59 60 Concrete Internal Curing Evaluation One 3.2 One 6.4 6.7 Adhesion Evaluation × △ △ ◎ ◎ Fish toxicity assessment 24 hours (mari) 3 2 One One One 48 hours (mari) One One 0 0 0 72 hours (mari) One One 0 0 0 96 hours (mari) 0 0 0 0 0 1) Example 6 shows that the carbon fiber does not contain a PET fiber and a binder alone

division Example
11 Example
12 Example
13 Example
14 Example
15 slope Polyester Fiber Fineness (De) 4000 1000 1000 1000 1000 Number of warp strands per inch 15 0.5 35 15 15 Weft Polyester Fiber Fineness (De) 4000 1000 1000 1000 1000 Carbon
fiber Fineness (De) 4000 1500 1500 1500 1500 Resistance (KΩ) 300 370 370 370 370 Far Infrared Emissivity (%) 90.1 90.1 90.1 90.1 90.1 Far Infrared Radiation Energy (× 10 ² W / ㎡ · ㎛) 3.62 3.63 3.63 3.63 3.63 Modulus of elasticity (g / d) 127 68 89 158 184 Batching width (strands per inch) 3 3 3 3 3 Weft Strands per Inch 15 0.5 35 15 15 Ground
Desa Melting Point (℃) 170 170 170 170 170 Fineness (De) 75 75 75 10 450 When 220V AC voltage is applied
40 ℃ reach time 2 minute, 49 seconds 2 minute, 43 seconds 2 minute, 43 seconds 2 minute, 43 seconds 2 minute, 43 seconds Concrete Curing Uniformity Assessment △ △ ◎ △ ◎ Exothermic performance evaluation (℃) 58 60 60 49 60 Concrete Internal Curing Evaluation 6 5.5 5.4 5.8 5.4 Adhesion Evaluation × × × × × Fish toxicity assessment 24 hours (mari) One 2 One One One 48 hours (mari) 0 0 0 0 0 72 hours (mari) 0 0 0 0 0 96 hours (mari) 0 0 0 0 0

division Example
16 Example
17 ¹⁾ Example
18 ²⁾ Example
19 ³⁾ Example
20 ⁴⁾ slope Polyester Fiber Fineness (De) 1000 1000 1000 1000 1000 Number of warp strands per inch 15 30 30 30 30 Weft Polyester Fiber Fineness (De) 1000 1000 1000 1000 1000 Carbon
fiber Fineness (De) 1500 1500 1500 1500 1500 Resistance (KΩ) 370 370 5 100 450 Far Infrared Emissivity (%) 90.1 90.1 88.1 90 90.3 Far Infrared Radiation Energy
(× 10 ² W / m 2 · µm) 3.63 3.63 3.13 3.58 3.67 Modulus of elasticity (g / d) 127 127 68 90 158 Batching width (strands per inch) 3 3 3 3 3 Weft Strands per Inch 15 30 30 30 30 Ground
Desa Melting Point (℃) 260 - - - - Fineness (De) 75 - - - - When 220V AC voltage is applied
40 ℃ reach time 2 minute, 43 seconds 2 minute, 43 seconds Within 30 seconds 44 seconds 3 minute, 17 seconds Concrete Curing Uniformity Assessment △ ◎ △ ◎ ◎ Exothermic performance evaluation (℃) 60 64 100 or more 80 52 Concrete Internal Curing Evaluation 4.4 6.7 2.2 6.5 6.4 Adhesion Evaluation × ◎ ◎ ◎ ◎ Fish toxicity
evaluation 24 hours (mari) One 0 One One 0 48 hours (mari) 0 One 2 0 One 72 hours (mari) 0 0 One 0 0 96 hours (mari) 0 0 0 0 0 1) Example 17 shows that the warp and weft are made of plain weave tissue to be intertwined
2) Example 18 shows that the warp and weft are made of plain weave tissue to be intertwined
3) Example 19 shows that the warp and weft made of plain weave tissue to be intertwined
4) Example 20 shows that the warp and weft were made of plain weave tissue to be intertwined

division Example 21 ^{1 )} Comparative Example 1 Comparative Example 2 ^{2 )} slope Polyester Fiber Fineness (De) 1000 1000 1000 Number of warp strands per inch 30 15 15 Weft Polyester Fiber Fineness (De) 1000 1000 1000 Carbon
fiber Fineness (De) 1500 - 1500 Resistance (KΩ) 550 - 0.2 Far Infrared Emissivity (%) 90.5 - - Far Infrared Radiation Energy
(× 10 ² W / m 2 · µm) 3.69 - - Modulus of elasticity (g / d) 184 - - Batching width (strands per inch) 3 - 15 Weft Strands per Inch 30 15 15 Ground
Desa Melting Point (℃) - 170 170 Fineness (De) - 75 75 When 220V AC voltage is applied
40 ℃ reach time 4 minutes - Within 30 seconds Concrete Curing Uniformity Assessment △ × ○ Exothermic performance evaluation (℃) 43 -9 100 or more Concrete Internal Curing Evaluation 5.3 1.6 4.3 Adhesion Evaluation △ × ○ Fish toxicity
evaluation 24 hours (mari) One 4 3 48 hours (mari) 3 3 3 72 hours (mari) 0 One 2 96 hours (mari) 0 0 0 1) Example 21 shows that the warp and weft made of plain weave tissue to be intertwined
2) Comparative Example 2 shows that the nichrome wire instead of the carbon fiber for each warp and weft yarn

As can be seen in Tables 1 to 5, the resistance of carbon-based fiber of the curing material for controlling concrete toxicity according to the present invention, far-infrared emissivity, far-infrared radiation energy, anion emission rate, elastic modulus, type of carbon-based fiber, fineness of warp and weft yarn, Examples 1, 3, 4, 9, 10, 17, 19, and 20 satisfying both the number of warp and weft per inch, the ground yarn fineness, the melting point of the ground yarn, the inclusion of carbon-based fibers, and the arrangement of the warp and weft yarn, Compared to Examples 2, 5 to 8, 11 to 16, 18, 21 and Comparative Examples 1 to 2, which are missing any of these, the temperature reaches 40 ° C faster, and the curing properties of the concrete are excellent, and the exothermic and thermal performances are excellent. This excellent at the same time, excellent flexibility, excellent adhesion, uniform curing to the inside of the concrete, the toxicity of the concrete is controlled and the toxicity of the fish is significantly reduced at the same time.

Although one embodiment of the present invention has been described above, the spirit of the present invention is not limited to the embodiments set forth herein, and those skilled in the art who understand the spirit of the present invention may add components within the scope of the same idea. Other embodiments may be easily proposed by changing, deleting, adding, etc., but this is also within the scope of the present invention.

100: Curing fabric for controlling concrete toxicity
10: incline
20: weft
30: Ground company

Claims (18)

It is used for curing concrete, and it is a curing material for controlling toxic concrete including carbon-based fiber that emits far infrared rays and emits negative ions when electric current is applied. The method of claim 1,
A curing fabric for controlling the toxicity of concrete that can be controlled during concrete curing by attaching it to a concrete curing frame. The method of claim 1,
The carbon-based fiber has curing resistance of 10 ~ 500kΩ concrete toxic control. The method of claim 1,
The carbon fiber has a far-infrared emissivity of 70% or more at a wavelength of 5 to 20㎛, far infrared radiation energy at 30 ~ 45 ℃ is 1.0 × 10 ² W / ㎡ · ㎛ or more curing cure fabric for concrete. The method of claim 1,
When the 220V AC voltage is applied, the temperature of the heat generating fabric is 40 seconds or more time 30 seconds ~ 5 minutes concrete toxicity control curing fabric. The method of claim 1,
When the 220V AC voltage is applied, the temperature of the heating material is 70 ℃ or more time 10 minutes to 60 minutes concrete toxicity control curing fabric. The method of claim 1, wherein the carbon-based fiber,
Fiber and,
It is formed on at least a part of the surface of the fiber, and a concrete toxic control curing fabric comprising a carbon doping layer comprising a binder and carbon particles fixed to the binder. The method of claim 1,
The curing fabric is a concrete toxic control curing fabric including at least one or more connections to the current flowing from the outside. The method of claim 1,
slope; And
Including weft;
Curing fabric for controlling concrete toxicity including the carbon-based fiber in any one or more of the warp and weft. The method of claim 9,
Curing fabric for controlling concrete toxicity, wherein one or more strands of the carbon-based fiber per one inch of excretion direction of at least one of the warp and weft. The method of claim 9,
The inclined and weft yarns are arranged to weave each other, the concrete toxic control curing fabric that the weft is arranged on the top or bottom of the inclined. The method of claim 11,
A concrete toxic control curing fabric further comprises a ground yarn provided to weave the warp and weft. The method of claim 12,
The ground yarn is a curing material for controlling concrete toxicity of 30 ~ 350 De. The method of claim 12,
The ground yarn curing point for controlling concrete toxicity is melting point or softening point of 190 ℃ or less. The method of claim 9,
The inclined and weft yarns are independently 100 to 3,500 De the concrete toxic control curing fabrics. The method of claim 9,
The warp and weft yarns each independently include a conductive fiber including at least one selected from the group consisting of quartz wire, nichrome wire, iron chromium wire, copper nickel wire and stainless steel wire, and at least one member selected from the group consisting of polyester fiber Curing fabric for controlling concrete toxicity further comprising a. The method of claim 11,
When the warp yarns and the weft yarns are arranged to weave each other, 1 to 60 strands of the warp yarn per 1 inch in the warp direction, and 1 to 60 strands of the weft yarn per 1 inch weft direction,
When the weft is disposed on the top or bottom of the inclined, 1 to 30 strands of the warp per inch in the warp direction, and 1 to 30 strands of the weft per 1 inch of weft direction is a concrete toxic control curing fabric. Fixing the concrete toxic control curing fabric according to any one of claims 1 to 17 to at least a portion of the concrete curing frame;
Placing concrete in the concrete curing frame; And
Toxic control concrete curing method comprising the step of applying a current to the concrete toxic control curing fabric for curing the pour concrete to form a toxic control concrete.

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