JP2002201758A - Heating concrete body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heating concrete body capable of melting snow or heating rooms while offering a sufficient concrete strength for use as floor members, wall members and roof members. SOLUTION: A charcoal concrete board portion 5 mixed with bamboo charcoal embedded with two copper conductors 6 are used for forming a heating concrete body 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-generating concrete body in which a voltage is applied to a wood char, such as bamboo charcoal, charcoal, activated carbon, etc., contained in charcoal-containing concrete to generate heat by the electric resistance of the wood char.

[0002]

2. Description of the Related Art Conventionally, a person removes snow on a roof by removing snow. However, snow removal was very labor intensive and involved the danger of falling off the roof. As a countermeasure for this, it is conceivable to pipe the roof and send steam to generate heat from the pipe to melt snow.
Since the steam gradually cools, a uniform effect cannot be obtained, and the equipment becomes expensive. It is conceivable to attach a heater or the like to the roof, but if the amount of snow is large, the weight cannot withstand the strength. In addition, these are likely to impair the aesthetics of the building. In addition, when floor heating is performed by a carpet or the like with a heater, if a heavy object is placed on the carpet or the like, a failure such as disconnection of the heater may occur.

[0003]

The problem to be solved by the present invention is to solve the conventional problems described above, and it is possible to melt snow and heat by heat generation, to have the strength of concrete, and to provide flooring, wall material and roofing material. Or a structure for configuring them,
An object of the present invention is to provide a heat-generating concrete body that can be used as a building material.

[0004]

Means for Solving the Problems The constitution of the present invention which has solved the above problems is as follows: 1) Kneading by adding a required amount of water to a carbon concrete raw material in which 10 parts by weight of woody carbide is mixed with 100 parts by weight of cement. Heat-generating concrete which is provided with voltage applying means for forming a charcoal concrete and applying a voltage to the charcoal concrete, wherein the voltage is applied to the charcoal concrete and heat is generated by electric resistance of the woody carbide in the charcoal concrete. 2) The heat-generating concrete body according to 1), wherein the voltage applying means is a conductor connected to a plurality of power sources separated for a predetermined time and embedded in carbonaceous concrete. 1 to 20 parts by weight of silica fume per 100 parts by weight of cement,
Silicon carbide 0.5 to 20 parts by weight, woody carbide 1
The exothermic concrete body according to 1) or 2) above, which is 5 to 120 parts by weight. 4) The charcoal concrete raw material is mixed with 15 to 40 parts by weight of fine aggregate and 15 to 120 parts by weight of woody carbide based on 100 parts by weight of Portland cement. 5) The exothermic concrete body according to the above 1) or 2) 5) The exothermic concrete body according to any one of the above 1) to 4), wherein the concrete molding is formed into a plate shape. The heat-generating concrete body according to the above 5) to which a rubber plate is attached 7) The heat-generating concrete body according to any one of the above 1) to 6) wherein the outer periphery is covered with a waterproof insulating sheet 8) The above 1) to 7) 9) Heat-generating concrete structure in which a large number of heat-generating concrete bodies described in any one of them are connected. 10) The heat-generating concrete structure according to 8), wherein the heat-generating concrete structure according to any one of 1) to 7) or the heat-generating concrete structure according to 8) or 9) is a floor of a building. Heat-generating concrete building material used as a material or wall material 11) Structure using heat-generating concrete body according to any of 1) to 7) or heat-generating concrete structure according to 8) or 9) as a roof material of a building Exothermic concrete building material 12) Woody carbide 10 per 100 parts by weight of cement
A required amount of water is added to and mixed with the coal concrete raw material blended by weight or more, and a part or the whole of the building is formed with carbon concrete, and a voltage applying means is provided for applying a voltage to the coal concrete, A structure in which a voltage is applied to the coal concrete so that a part or the whole of the building can be warmed by the electric resistance of the woody carbide in the coal concrete. The building according to the above item 12), which is buried in charcoal concrete. 14) The charcoal concrete raw material is mixed with silica fume in an amount of 1 to 20 parts by weight and silicon carbide in an amount of 0.5 to 20 parts by weight based on 100 parts by weight of alumina cement. 15) The building according to 12) or 13) above, wherein 15 to 120 parts by weight of woody carbide is mixed. Fine aggregate 15 to 40 parts by weight with respect to instrument 100 parts by weight,
The above 12) or 1 which is 15 to 120 parts by weight of woody carbide
3) in the building described.

[0005]

According to the present invention, a voltage is applied to the charcoal concrete mixed with the charcoal concrete by the voltage applying means, thereby applying a voltage to the charcoal charcoal mixed with the charcoal concrete. Causes itself to generate heat. When the voltage applying means embeds the conductor in the charcoal concrete, the voltage can be applied to the charcoal concrete by applying a voltage between a plurality of buried conductors at predetermined intervals. Charcoal concrete raw material is mixed with silica fume 1 to 20 parts by weight and silicon carbide 0.1 part by weight with respect to 100 parts by weight of alumina cement.
5 to 20 parts by weight, 15 to 120 parts by weight of woody carbide, and a mixture of carbonaceous concrete raw material and 15 to 40 parts by weight of fine aggregate and 15 to 120 parts by weight of woody carbide based on 100 parts by weight of Portland cement Is made of charcoal concrete, which balances the heat generation effect of woody carbide with the strength of concrete. The concrete molded into a plate shape can be used as a heat-generating concrete plate material. When a concrete plate and a rubber plate are attached to each other, the force received by the rubber plate can be dispersed, and the concrete plate and the rubber plate can be closely attached to the attachment portion. A device in which the outer periphery is covered with a waterproof insulating sheet prevents current flowing from the conductor from leaking to the outside even in an environment where it may come into contact with rain or water. A structure in which a large number of heat-generating concrete bodies are connected to form a heat-generating concrete structure can be made into a structure capable of generating concrete in a wide range. When the conductors of adjacent heat-generating concrete bodies can be connected, the conductors of adjacent heat-generating concrete bodies are connected when a large number of heat-generating concrete bodies are connected, so that a complicated wiring structure is prevented. When the exothermic concrete body or exothermic concrete structure is used as an exothermic concrete building material used as a floor material or a wall material of a building, the floor or wall of the building can generate heat. When a heat-generating concrete body or a heat-generating concrete structure is used as a heat-generating concrete building material that is used as a roof material of a building, the roof of the building generates heat so that snow can be melted. When a part or the whole of a building is formed of charcoal concrete, a part or the whole of the layered charcoal concrete generates heat by applying a voltage to heat a part or the whole of the building.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The cement for producing a heat-generating concrete body, a heat-generating concrete structure, a heat-generating concrete building material, and a charcoal-containing concrete constituting a building according to the present invention include silica cement, alumina cement, and portland cement. It is preferable that the woody carbide can be mixed in a high ratio. Exothermic concrete body of the present invention, exothermic concrete structure, exothermic concrete building material,
Porous concrete can be used as cement and aggregate for producing concrete with charcoal constituting a building.
The wood-based carbide mixed in the heat-generating concrete body, the heat-generating concrete structure, the heat-generating concrete building material, and the charcoal-containing concrete constituting the building include bamboo charcoal, woody charcoal, activated carbon, and the like. It should be decided according to. The voltage applying means may be formed by embedding an electric conductor in charcoal concrete, or by attaching an electric conductor to the outside of the formed charcoal concrete. Either of them may be used. The conductor includes an electrode, an electric wire, and the like. When the conductor is embedded in charcoal concrete, it is preferable that the conductor has appropriate strength. In addition, a metal having appropriate conductivity may be used, and the metal is not limited to a material used for a normal electrode or wire. Concrete molding includes molding using a mold, molding by application, and molding by spraying.
The thickness may be determined based on the thickness to be formed. Some of the buildings of the building of the present invention, such as roofs, floors, walls, etc. that constitute the building,
A part of the building that includes part of the roof, part of the floor, part of the wall, and the outer, inner, and middle layers that are part of the roof, floor, and wall in the thickness direction The buildings shall include new buildings, existing buildings, concrete structures, and wooden structures. The exothermic concrete body may be formed into a plate shape, may be formed into a block shape, or may be formed into another shape, and may be determined according to the application and purpose.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described with reference to the drawings. Example 1 (see FIGS. 1 to 6) In Example 1 shown in FIGS. 1 to 6, the blending of the raw material for carbon concrete is 1 to 20 parts by weight of silica fume and 0.5 to 100 parts by weight of silicon carbide based on 100 parts by weight of alumina cement. 20 parts by weight, 15 to 120 parts by weight of woody carbide, concrete-formed into a plate, another concrete plate and a rubber plate are attached, and the outer periphery is covered with a waterproof insulating sheet. This is an example of a heat-generating concrete structure in which a large number of heat-generating concrete bodies are connected to each other, and the connection of the heat-generating concrete bodies is such that a conductor that is a voltage applying means of an adjacent heat-generating concrete body can be connected. It is an example of a heat-generating concrete building material in which a body is used as a roof material of a building. FIG. 1 is a plan view of a heat-generating concrete body constituting a heat-generating concrete structure of a heat-generating concrete building material of Example 1. FIG. 2 is a sectional view taken along line AA of FIG. FIG. 3 shows the first embodiment.
It is explanatory drawing which shows the connection part of the exothermic concrete structure of the exothermic concrete building material. FIG. 4 is an explanatory view showing a connection portion of the heat-generating concrete structure of the heat-generating concrete building material according to the first embodiment. FIG. 5 is an explanatory diagram of a heat-generating concrete structure of the heat-generating concrete building material of the first embodiment. FIG. 6 is an explanatory diagram of a heat-generating concrete building material of Example 1. In the figure,
1 is a heat-generating concrete building material used as a roofing material, 2 is a heat-generating concrete structure constituting a heat-generating concrete building material, 3 is a connection unit, 3a is a power line, 3b is a connector portion, and 4 is a heat-generating concrete structure forming a heat-generating concrete structure. Body, 5 is a charcoal concrete plate part, 5a is a bamboo charcoal part,
6 is a copper conductor used as a conductor of the voltage applying means, 7 is a connector, 7a is a terminal, 8 is a normal concrete plate portion, 9 is a rubber plate portion, 10 is a power source, 11 is an insulating sheet, 1
2 is an intermediate connector, 12a is an O-ring part, 15 is a house, 1
5a is the roof of the house.

[0008] In the heat-generating concrete body of Example 1, silica fume was added to 100 parts by weight of alumina cement.
84 parts by weight, 1.4 parts by weight of silicon carbide, and a raw material of charcoal concrete mixed with bamboo charcoal as a woody carbide so as to be 100 parts by weight are prepared. Bamboo charcoal used is a mixture of 1 mm to 2 mm flakes and bamboo charcoal particles (0.5 mm or less) at a ratio of 1: 1. Next, two copper conductors 6 are prepared. The copper conductor 6 has a comb-shaped portion as shown in FIG. The two copper conductors 6 are arranged in a concrete form such that they do not come into contact with each other and have a predetermined interval. Both ends of the two copper conductors 6 are attached so as to be inserted into a resin connector 7 as shown in FIGS. Next, two terminals 7 a are attached to the connector 7. The terminal 7a has one end in contact with the copper conductor 6. Next, an appropriate amount of water was added to the raw material of the charcoal concrete and kneaded, and the mixture was poured into a concrete form in which the copper conductor 6, the connector 7, and the terminal 7a were arranged, and the heating concrete body 4 shown in FIGS. The charcoal concrete plate part 5 is formed. Next, the ordinary concrete plate portion 8 is attached to the upper surface of the charcoal concrete plate portion 5 and the rubber plate portion 9 is attached to the lower surface to form the heat-generating concrete body 4. As shown in FIG. 2, the exothermic concrete body 4 is configured such that one of the side portions at both ends has a thickness of only the lower half and the other has a thickness of only the upper half, and the connector 7 and the terminal 7a are formed at the central portion of the thickness. The charcoal concrete plate 5 is exposed to the outside. Next, the connector 7 of the heat-generating concrete body 4
A waterproof and insulating insulating sheet 11 is attached so as to cover portions other than the exposed portion of the terminal 7a.

Next, the heat-generating concrete structure 2 is formed by connecting a large number of the heat-generating concrete bodies 4. As shown in FIGS. 3 and 4, the connection of the heat-generating concrete body 4 is such that the exposed portions of the connector 7 and the terminal 7a of the heat-generating concrete body 4 face the exposed portions of the connector 7 and the terminal 7a of another adjacent heat-generating concrete body 4. Then, the upper and lower sides of the intermediate connector 12 are inserted into the opposing connector 7, respectively, so as to be connected via the intermediate connector 12. Connection terminals are provided in the intermediate connector 12, and each terminal 7 of the opposing connector 7 is provided.
a so that the opposite terminal 7a is electrically connected. O-rings 12a are provided on the outer periphery near both ends of the intermediate connector 12, so that the inside of the connector is sealed so that water or the like does not enter from the outside. Next, in order to supply power to the heating concrete body 4 at one end of the connection of the predetermined number of heating concrete bodies 4 in this way, or to connect two copper conductors 6 at the end. Connect to unit 3.

In this way, a plurality of exothermic concrete bodies 4 are connected to each other to cover a wide surface and to be able to supply electricity to each exothermic concrete body 4.
Is attached as a heat-generating concrete building material 1 to a roof 15a of a house 15 as shown in FIG. Since the rubber plate portion 9 is provided on the heat-generating concrete body 4, the heat-generating concrete body 4 serves as a non-slip and also serves as a cushioning material.

In the exothermic concrete building material 1 of the first embodiment,
100 V AC is supplied. Power supply line 3a of connection unit 3
When power is supplied to each of the heat-generating concrete bodies 4 through the, a voltage is applied to the two copper conductors 6 embedded in the charcoal concrete plate portion 5 of the heat-generating concrete body 4. The bamboo charcoal mixed in the charcoal concrete plate portion 5 passes a small amount of current due to its electric resistance and generates heat as a resistor. Since the generated heat is transmitted to the ordinary concrete plate portion 8 on the surface, the surface of the roof is warmed. Therefore, on a roof of a house in a place where much snowfall occurs, the snow can be melted so as not to be piled on the roof, or the snow can be removed from the roof. As a result, it is possible to prevent the house from being collapsed due to the snow and to save the trouble of removing the snow. Therefore, it is possible to avoid injuries due to collapse of houses or falling snow masses, and to avoid injuries by falling off the roof when dropping snow, and it is safe and easy to spend, which is very useful. In addition, a large number of heat-generating concrete bodies are connected to form a heat-generating concrete structure, and a heat-generating concrete building material used as a roof material can be easily installed and removed on an existing roof.

As reference data, changes in the current value and the temperature of the surface of the carbon concrete surface which are buried in carbon concrete with an interval of 14 mm between copper wires having a length of 55 mm and a diameter of 1.6 mm and applied with an alternating current of 100 V are shown.

[0013]

[Table 1]

[0014]

[Table 2]

As shown in Tables 1 and 2, it has been confirmed that a low resistance value can be obtained by increasing the proportion of bamboo charcoal mixed in the charcoal concrete. In addition, for the change in the heat generation temperature due to the decrease in the current value due to the increase in the resistance value including the copper wire due to the heat generation, a heat radiator is embedded in charcoal concrete to make it easier for the heat to be transmitted to the surface and the copper wire It may be determined as necessary by lowering the surrounding temperature to make it easier to flow the current, stopping the current once and re-energizing, or changing the thickness of the charcoal concrete, the interval between the copper wires, and the like.

Embodiment 2 (See FIG. 7) Embodiment 2 shown in FIG. 7 is an example of a building in which a conductor is buried and formed of charcoal concrete when the roof of the building is formed of concrete. is there. In the figure, 16 is a conductor,
17 is a charcoal concrete part and 18 is a normal concrete part. In Example 2, the conductor 16 was arranged in the formwork when the roof of the building was formed into concrete, and the carbon concrete portion 17 and the ordinary concrete portion 18 capable of generating heat by so-called cast-in-place injection of carbon concrete were formed in layers. Forming a building. The heating concrete surface may be formed in this manner. Other functions and usage are the same as those in the first embodiment.

Embodiment 3 (see FIG. 8) FIG. 8 shows an example of a heating concrete building material using a heating concrete structure as a floor material and a wall material. In the figure, reference numeral 20 denotes a heat-generating concrete building material used as a floor material, 2
0a is a conductor, 21 is a heat-generating concrete building material used as a wall material, and 21a is a conductor. In the third embodiment, a heat-generating concrete building material is used as a floor material and a wall material. In such a case, the surface of the concrete may have a woodgrain. If used as a floor material or a wall material for heating as described above, natural warmth can be achieved. In addition, when used on a concrete surface that is relatively inaccessible to the sun or is poorly ventilated, it is possible to prevent dew condensation and mold and the like.

Embodiment 4 (see FIG. 9) FIG. 9 shows an example of a heat-generating concrete body in which an electrode plate is attached as a voltage applying means after forming charcoal concrete. FIG. 9 is an explanatory view of a heat-generating concrete body according to the fourth embodiment. In the figure, 22 is a heating concrete body, 23 is a charcoal concrete portion, 24 is a normal concrete portion, and 25 is an electrode plate used as a voltage applying means. In the fourth embodiment, the charcoal concrete portion 23 is provided as an intermediate layer between the ordinary concrete portions 23, and the electrode plates 25 are provided on both end portions of the charcoal concrete portion 23, respectively. Thus, the electrode plate 25
May be attached after the charcoal concrete portion 23 is formed.

Embodiment 5 (see FIG. 10) FIG. 10 shows an example of a building in which charcoal concrete is applied to an existing building and provided in layers. FIG.
0 is an explanatory view showing a part of the building of the fifth embodiment. In the figure, 26 is a wall portion of an existing building, 27 is a charcoal concrete layer, and 28 is an electrode plate (used as a voltage applying means). In the fifth embodiment, charcoal concrete is applied to the wall of an existing building to form a charcoal concrete layer 27, and an electrode plate 28 is attached to the surface of the charcoal concrete layer 27.
In this way, it is very preferable to heat the existing wall surface to prevent dew condensation and mold. In addition, after construction, charcoal concrete may be sprayed or applied to a portion where dew condensation occurs, and a voltage may be applied to warm the portion. Further, a charcoal concrete layer may be provided on an outer wall board surface or a mortar painted surface of a wooden building. Further, charcoal concrete may be used for repairing a building.

[0020]

According to the present invention, it is possible to melt snow and heat by the invention, to have the strength of concrete, to eliminate the trouble and danger of removing snow, and to provide a heat-generating concrete body used as a floor material, a wall material and a roof material. it can. Moreover, since the concrete itself generates heat, it can be used as a very safe heating substance. When the voltage applying means embeds the conductor in the charcoal concrete, it can be used for a wide range of applications without being restricted by the use of the conductor due to the strength of the conductor. Charcoal concrete is mixed with alumina cement 100
1 to 20 parts by weight of silica fume, 0.5 to 20 parts by weight of silicon carbide, 15 to 1 part by weight of wood carbide
20 parts by weight, and a mixture of charcoal concrete and 100 parts by weight of Portland cement were fine aggregates 15 to 4
0 parts by weight, and 15 to 120 parts by weight of the woody carbide, in each case of alumina cement and Portland cement, the concrete itself generates heat and has sufficient strength so that it can be used for a wide range of applications. I do. The concrete molded into a plate shape can be used for a wider range of applications. If a separate concrete plate and rubber plate are attached, the surface can be made into a concrete that is normally used, and the rubber plate makes it difficult to slip, making it easier to install, etc. Can be endurable. The one whose outer periphery is covered with a waterproof insulating sheet can be used safely even in places where rain and snow hit. A heat-generating concrete structure formed by connecting a large number of heat-generating concrete bodies can perform snow melting and heating even in a wide place. The one that can connect the conductors of the adjacent heat-generating concrete body can be easily installed and removed, and can have a simple structure. A heat-generating concrete body or a heat-generating concrete structure used as a floor material or a wall material of a building can be a very useful concrete building material capable of heating and preventing mold. A heat-generating concrete body or a heat-generating concrete structure used as a heat-generating concrete structure as a roof material of a building can be used as a concrete building material used for a safe and comfortable building that can eliminate the trouble and danger of removing snow. A concrete structure in which a conductor is buried in charcoal concrete to form a roof, a wall or a floor of a building can be made into a concrete structure capable of preventing snow melting, dew condensation, and heating even when cast in place by heating the concrete itself.

[Brief description of the drawings]

FIG. 1 is a plan view of a heat-generating concrete body constituting a heat-generating concrete structure of a heat-generating concrete building material of Example 1.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an explanatory view showing a connection portion of a heat-generating concrete structure of the heat-generating concrete building material of Example 1.

FIG. 4 is an explanatory view showing a connection portion of the heat-generating concrete structure of the heat-generating concrete building material of Example 1.

FIG. 5 is an explanatory diagram of a heat-generating concrete structure of the heat-generating concrete building material of Example 1.

FIG. 6 is an explanatory view of a heat-generating concrete building material of Example 1.

FIG. 7 is an explanatory diagram of a building according to a second embodiment.

FIG. 8 is an explanatory view of a heat-generating concrete building material of Example 3.

FIG. 9 is an explanatory view of a heat-generating concrete body of Example 4.

FIG. 10 is an explanatory view showing a part of a building according to a fifth embodiment.

[Explanation of symbols]

Reference Signs List 1 exothermic concrete building material (used as roofing material) 2 exothermic concrete structure (constituting exothermic concrete building material) 3 connection unit 3a power line 3b connector 4 exothermic concrete body (constituting exothermic concrete structure) 5 charcoal concrete plate Part 5a bamboo charcoal part 6 copper conductor 7 (used as a conductor of the voltage application means) 7 connector 7a terminal 8 ordinary concrete plate part 9 rubber plate part 10 power supply 11 insulating sheet 12 intermediate connector 12a O-ring part 15 house 15a (house) ) Roof 16 Conductor 17 Charcoal concrete part 18 Normal concrete part 20 Heating concrete building material (used as floor material) 20a Conductor 21 Heating concrete building material (used as wall material) 21a Conductor 22 Heating concrete body 23 Charcoal concrete part 24 Normal conch Over the isolation portions 25 (used as voltage applying means) (used as voltage applying means) electrode plate 26 (existing buildings) wall portions 27 carbon concrete layer 28 electrode plate

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) E04D 3/35 E04D 3/35 W 4G012 13/00 13/00 F E04F 13/14 102 E04F 13/14 102Z 15/08 15/08 Z H05B 3/14 H05B 3/14 F 3/20 328 3/20 328 // (C04B 28/06 (C04B 28/06 22:06 22:06 A 22:00 22:00 18 : 10) 18:10) B (72) Inventor Shinichi Kuratomi 1-12-14-201 Nashima, Higashi-ku, Fukuoka, Fukuoka Prefecture F-term (reference) 2E108 BB01 BN01 CC11 CV00 GG12 2E110 AA03 AA21 AB04 AB23 BA12 GA34W GB23W GB35W 2E162 CA11 CE01 FA00 FA01 FC05 3K034 AA04 AA05 AA08 AA16 BA08 BA13 BB04 BB14 BC16 CA02 CA15 CA28 CA32 HA01 HA09 JA01 JA10 3K092 PP20 QA05 QB03 QB08 QB14 QB32 QC06 QC16 QC25 RF03 RF11 VV03 VV12 VV4 VV12 VV12V25

Claims (15)

[Claims] 1. A required amount of water is added to a carbon concrete raw material in which 10 parts by weight or more of woody carbide is blended with 100 parts by weight of cement, kneaded to form a carbon concrete, and a voltage can be applied to the carbon concrete. A heat generating concrete body comprising a voltage applying means for applying a voltage to the charcoal concrete and generating heat by electric resistance of the woody carbide in the charcoal concrete. 2. The heat-generating concrete body according to claim 1, wherein the voltage application means is formed by burying a conductor connected to a plurality of power sources separated from each other for a predetermined time in carbonaceous concrete. 3. A mixture of a carbon concrete material and silica fume 1 to 20 with respect to 100 parts by weight of alumina cement.
The heat-generating concrete body according to claim 1 or 2, wherein the amount is 0.5 to 20 parts by weight of silicon carbide, and 15 to 120 parts by weight of woody carbide. 4. The heat-generating concrete body according to claim 1, wherein the raw material for the charcoal concrete is 15 to 40 parts by weight of fine aggregate and 15 to 120 parts by weight of wood carbide with respect to 100 parts by weight of Portland cement. 5. The heat-generating concrete body according to claim 1, wherein the concrete is formed into a plate shape. 6. The heat-generating concrete body according to claim 5, wherein another plate-shaped concrete plate and a rubber plate are attached. 7. The heat-generating concrete body according to claim 1, wherein the outer periphery is covered with a waterproof insulating sheet. 8. A heat-generating concrete structure comprising a plurality of heat-generating concrete bodies according to claim 1. 9. The heat-generating concrete structure according to claim 8, wherein the heat-generating concrete body has a connection structure capable of connecting voltage applying means of adjacent heat-generating concrete bodies. 10. A heat-generating concrete building material, wherein the heat-generating concrete body according to claim 1 or the heat-generating concrete structure according to claim 8 or 9 is used as a floor material or a wall material of a building. 11. A heat-generating concrete building material wherein the heat-generating concrete body according to claim 1 or the heat-generating concrete structure according to claim 8 or 9 is used as a roof material of a building. 12. A required amount of water is added and kneaded to a carbon concrete raw material in which 10 parts by weight or more of woody carbide is blended with 100 parts by weight of cement, and a part or all of the building is formed of carbon concrete. A structure comprising voltage applying means for applying a voltage to concrete, wherein a voltage is applied to the charcoal concrete and a part or the whole of the building can be heated by electric resistance of woody carbide in the charcoal concrete. 13. The building according to claim 12, wherein the voltage applying means is formed by burying a plurality of conductors separated for a predetermined time in a charcoal concrete. 14. The carbon concrete raw material is mixed with silica fume 1-2 with respect to 100 parts by weight of alumina cement.
14 parts by weight of 0 parts by weight, 0.5 to 20 parts by weight of silicon carbide, and 15 to 120 parts by weight of woody carbide.
The listed building. 15. A method of blending a raw material for charcoal concrete with a fine aggregate of 15 to 40 parts by weight per 100 parts by weight of Portland cement.
2 parts by weight, 15 to 120 parts by weight of woody carbide.
14. The building according to 2 or 13.