CN102519072A - Energy-saving electricity-conducting concrete geothermal floorslab and method for manufacturing same - Google Patents
Energy-saving electricity-conducting concrete geothermal floorslab and method for manufacturing same Download PDFInfo
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- CN102519072A CN102519072A CN2011104043888A CN201110404388A CN102519072A CN 102519072 A CN102519072 A CN 102519072A CN 2011104043888 A CN2011104043888 A CN 2011104043888A CN 201110404388 A CN201110404388 A CN 201110404388A CN 102519072 A CN102519072 A CN 102519072A
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- conducting concrete
- floor
- bar
- copper plate
- energy
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- 239000004567 concrete Substances 0.000 title claims abstract description 66
- 238000004519 manufacturing process Methods 0.000 title abstract description 6
- 238000000034 method Methods 0.000 title 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000010949 copper Substances 0.000 claims abstract description 49
- 229910052802 copper Inorganic materials 0.000 claims abstract description 49
- 239000010410 layer Substances 0.000 claims abstract description 40
- 239000002344 surface layer Substances 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 230000002787 reinforcement Effects 0.000 claims description 45
- 238000009413 insulation Methods 0.000 claims description 28
- 238000004134 energy conservation Methods 0.000 claims description 19
- 230000004888 barrier function Effects 0.000 claims description 16
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 14
- 229910052744 lithium Inorganic materials 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 10
- 239000004917 carbon fiber Substances 0.000 claims description 10
- 239000004568 cement Substances 0.000 claims description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- -1 sandstone Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 abstract description 11
- 238000003756 stirring Methods 0.000 description 9
- 239000002270 dispersing agent Substances 0.000 description 3
- 229920000609 methyl cellulose Polymers 0.000 description 3
- 239000001923 methylcellulose Substances 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/40—Geothermal heat-pumps
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- Floor Finish (AREA)
Abstract
本发明公开了一种节能导电混凝土地热楼板及其制作方法，解决了现有楼板不能为室内供暖的问题，它包括钢筋网和面层，其技术方案的要点是：钢筋网外侧浇筑有导电混凝土层，导电混凝土层外侧铺设有面层，钢丝网的两端安有铜片电极，铜片电极与钢筋网之间设有绝缘板，且两个铜片电极通过导线连接，其中一侧铜片电极通过导线与外部电源相连。本发明结构设计合理、构思巧妙新颖，制作简单、成本低廉、实用性强。
The invention discloses an energy-saving conductive concrete geothermal floor slab and a manufacturing method thereof, which solves the problem that the existing floor slabs cannot provide indoor heating. Layer, the surface layer is laid on the outside of the conductive concrete layer, copper electrodes are installed at both ends of the steel mesh, an insulating plate is installed between the copper electrode and the steel mesh, and the two copper electrodes are connected by wires, one side of which is copper The electrodes are connected to an external power source through wires. The invention has reasonable structural design, ingenious and novel conception, simple manufacture, low cost and strong practicability.
Description
Technical field:
The invention belongs to building floor, be specifically related to a kind of energy-conservation conducting concrete underground heat floor and preparation method thereof.
Background technology:
Existing building uses floor to be mostly reinforced concrete floor, though its sealing is good, the slab surfaces temperature is low; Temperature in can not conditioning chamber, especially in the winter of cold, the surface temperature of floor is lower; It further reduced indoor temperature, and indoor heating mainly relies on traditional heating line heat-supplying mode or traditional electric equipment heating plant to the indoor cold air that distributes; Its cost is higher, and uneven heating is even.
Summary of the invention:
The purpose of this invention is to provide a kind of energy-conservation conducting concrete underground heat floor that can be indoor heating and preparation method thereof.
The objective of the invention is to realize in the following manner: this energy-conservation conducting concrete underground heat floor; Comprise bar-mat reinforcement and surface layer, it is characterized in that: the conducting concrete layer has been built in the bar-mat reinforcement outside, and the conducting concrete layer outside is equipped with surface layer; The two ends of steel wire are equipped with copper plate electrode; Be provided with insulation board between copper plate electrode and the bar-mat reinforcement, and two copper plate electrodes connect through lead, wherein a side copper plate electrode links to each other with external power source through lead.
Also be equipped with thermal insulation layer between bar-mat reinforcement and the conducting concrete layer, also be equipped with insulating barrier between conducting concrete layer and the surface layer.
Also be provided with temperature controller between external power source and the copper plate electrode, in order to the temperature of control floor.
External power source comprises solar panel and civilian power supply, and both link to each other with temperature controller with second switch through first switch respectively.
Also be provided with lithium battery between the solar panel and first switch.
Energy-conservation conducting concrete underground heat floor of the present invention is processed by following steps:
A, reinforcing bar is put into the floor forming panel, longitudinal reinforcement and transverse steel are arranged with certain spacing respectively, and be welded as a whole, form bar-mat reinforcement in the place, crosspoint;
B, copper plate electrode is placed on the two ends of bar-mat reinforcement, separates with insulation board between copper plate electrode and the bar-mat reinforcement, two copper plate electrodes are coupled together with lead;
C, lay thermal insulation layer to the outside of bar-mat reinforcement;
D, the conducting concrete that configures is poured on the thermal insulation layer;
Insulating barrier is laid in e, the concrete outside of conductive;
F, lay surface layer in the outside of insulating barrier;
G, the floor plate body demoulding that will make through the f step; Draw the output that lead connects temperature controller from a side copper plate electrode of floor plate body; Draw two leads by the input of temperature controller again; The output that connects first switch and second switch respectively lets the input of first switch be connected civilian power supply through the input that lead connects lithium battery and solar panel, second switch successively through lead again, and the circuit of accomplishing floor connects.
Conducting concrete is made up of water, cement, sandstone, carbon fiber and slag, and its percentage by weight is: water 10～20%, cement 15～30%, sandstone 15～25%, carbon fiber 15～30%, slag 15～30%.
Energy-conservation conducting concrete underground heat floor of the present invention; Replace traditional concrete with conducting concrete, under the condition that satisfies traditional floor bearing capacity, increased the electric conductivity of floor; And under the effect of floor additional power source, make the floor heating power, and then be embodied as the purpose of indoor heating; Be equipped with insulating barrier between conducting concrete and the surface layer, to guarantee the safe handling of floor.For saving the energy, used external power source mainly is to adopt the solar panel power supply among the present invention, and solar panel also is in series with lithium battery in addition; When bright and clear, solar panel is not merely the floor power supply, is lithium cell charging simultaneously yet; When insufficient light, can be the floor power supply with lithium battery; Be further to guarantee the normal heating of floor, the present invention also links to each other with civilian power supply, when solar panel or lithium battery can't normally use; Available civilian power supply is as stand-by power supply, to guarantee the normal heating of floor.Reasonable in design of the present invention, the novelty that is skillfully constructed are made simply, with low cost, practical, guarantee that effectively the heating of building is supplied with.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a partial enlarged drawing of the present invention.
The specific embodiment:
With reference to each accompanying drawing, this energy-conservation conducting concrete underground heat floor comprises bar-mat reinforcement 5 and surface layer 1; It is characterized in that: conducting concrete layer 3 has been built in bar-mat reinforcement 5 outsides; Conducting concrete layer 3 outside are equipped with surface layer 1, and the two ends of steel wire 5 are equipped with copper plate electrode 6, are provided with insulation board 12 between copper plate electrode 6 and the bar-mat reinforcement 5; And two copper plate electrodes 6 connect through lead, and wherein a side copper plate electrode 6 links to each other with external power source through lead.Also be equipped with thermal insulation layer 4 between bar-mat reinforcement 5 and the conducting concrete layer 3, also be equipped with insulating barrier 2 between conducting concrete layer 3 and the surface layer 1.Also be provided with temperature controller 7 between external power source and the copper plate electrode 6.External power source comprises solar panel 8 and civilian power supply 9, and both link to each other with temperature controller 7 with second switch 12 through first switch 11 respectively.Also be provided with lithium battery 10 between the solar panel 8 and first switch 11.
The manufacturing process of energy-conservation conducting concrete underground heat floor of the present invention is:
A, reinforcing bar is put into the floor forming panel, longitudinal reinforcement and transverse steel are arranged with certain spacing respectively, and be welded as a whole, form bar-mat reinforcement 5 in the place, crosspoint;
B, copper plate electrode 6 is placed on the two ends of bar-mat reinforcement 5, separates with insulation board 12 between copper plate electrode 6 and the bar-mat reinforcement 5, as lead two copper plate electrodes 6 are coupled together with copper core cable;
C, lay thermal insulation layer 4 to the outside of bar-mat reinforcement 5;
D, the conducting concrete that configures is poured on the thermal insulation layer 4;
F, lay surface layer 1 in the outside of insulating barrier 2;
G, the floor plate body demoulding that will make through the f step; Draw the output that lead connects temperature controller 7 from a side copper plate electrode 6 of floor plate body; Draw two leads by the input of temperature controller 7 again; Connect the output of first switch 11 and second switch 12 respectively, let the input of first switch 11 be connected civilian power supply 9 through the input that lead connects lithium battery 10 and solar panel 8, second switch 12 successively through lead again, the circuit of accomplishing floor connects.
Conducting concrete 2 among the present invention is made up of water, cement, sandstone, carbon fiber and slag; During preparation; Earlier 20% water is put into container, and in container, add methylcellulose as dispersant, fully stirring is dissolved in the water it; In container, add 25% carbon fiber then, and stir; Slag with 20%, 15% sandstone and 20% cement mixing are put into concrete mixer, the mixed liquor in the container is added in the concrete mixer and constantly slowly stir at last, and thing to be mixed promptly may be cast on the thermal insulation layer 4 after becoming even pulpous state.
With reference to each accompanying drawing, this energy-conservation conducting concrete underground heat floor comprises bar-mat reinforcement 5 and surface layer 1; It is characterized in that: conducting concrete layer 3 has been built in bar-mat reinforcement 5 outsides; Conducting concrete layer 3 outside are equipped with surface layer 1, and the two ends of steel wire 5 are equipped with copper plate electrode 6, are provided with insulation board 12 between copper plate electrode 6 and the bar-mat reinforcement 5; And two copper plate electrodes 6 connect through lead, and wherein a side copper plate electrode 6 links to each other with external power source through lead.Also be equipped with thermal insulation layer 4 between bar-mat reinforcement 5 and the conducting concrete layer 3, also be equipped with insulating barrier 2 between conducting concrete layer 3 and the surface layer 1.Also be provided with temperature controller 7 between external power source and the copper plate electrode 6.External power source comprises solar panel 8 and civilian power supply 9, and both link to each other with temperature controller 7 with second switch 12 through first switch 11 respectively.Also be provided with lithium battery 10 between the solar panel 8 and first switch 11.
The manufacturing process of energy-conservation conducting concrete underground heat floor of the present invention is:
A, reinforcing bar is put into the floor forming panel, longitudinal reinforcement and transverse steel are arranged with certain spacing respectively, and be welded as a whole, form bar-mat reinforcement 5 in the place, crosspoint;
B, copper plate electrode 6 is placed on the two ends of bar-mat reinforcement 5, separates with insulation board 12 between copper plate electrode 6 and the bar-mat reinforcement 5, as lead two copper plate electrodes 6 are coupled together with copper core cable;
C, lay thermal insulation layer 4 to the outside of bar-mat reinforcement 5;
D, the conducting concrete that configures is poured on the thermal insulation layer 4;
F, lay surface layer 1 in the outside of insulating barrier 2;
G, the floor plate body demoulding that will make through the f step; Draw the output that lead connects temperature controller 7 from a side copper plate electrode 6 of floor plate body; Draw two leads by the input of temperature controller 7 again; Connect the output of first switch 11 and second switch 12 respectively, let the input of first switch 11 be connected civilian power supply 9 through the input that lead connects lithium battery 10 and solar panel 8, second switch 12 successively through lead again, the circuit of accomplishing floor connects.
Conducting concrete 2 among the present invention is made up of water, cement, sandstone, carbon fiber and slag; During preparation; Earlier 30% water is put into container, and in container, add methylcellulose as dispersant, fully stirring is dissolved in the water it; In container, add 30% carbon fiber then, and stir; Slag with 15%, 10% sandstone and 15% cement mixing are put into concrete mixer, the mixed liquor in the container is added in the concrete mixer and constantly slowly stir at last, and thing to be mixed promptly may be cast on the thermal insulation layer 4 after becoming even pulpous state.
With reference to each accompanying drawing, this energy-conservation conducting concrete underground heat floor comprises bar-mat reinforcement 5 and surface layer 1; It is characterized in that: conducting concrete layer 3 has been built in bar-mat reinforcement 5 outsides; Conducting concrete layer 3 outside are equipped with surface layer 1, and the two ends of steel wire 5 are equipped with copper plate electrode 6, are provided with insulation board 12 between copper plate electrode 6 and the bar-mat reinforcement 5; And two copper plate electrodes 6 connect through lead, and wherein a side copper plate electrode 6 links to each other with external power source through lead.Also be equipped with thermal insulation layer 4 between bar-mat reinforcement 5 and the conducting concrete layer 3, also be equipped with insulating barrier 2 between conducting concrete layer 3 and the surface layer 1.Also be provided with temperature controller 7 between external power source and the copper plate electrode 6.External power source comprises solar panel 8 and civilian power supply 9, and both link to each other with temperature controller 7 with second switch 12 through first switch 11 respectively.Also be provided with lithium battery 10 between the solar panel 8 and first switch 11.
The manufacturing process of energy-conservation conducting concrete underground heat floor of the present invention is:
A, reinforcing bar is put into the floor forming panel, longitudinal reinforcement and transverse steel are arranged with certain spacing respectively, and be welded as a whole, form bar-mat reinforcement 5 in the place, crosspoint;
B, copper plate electrode 6 is placed on the two ends of bar-mat reinforcement 5, separates with insulation board 12 between copper plate electrode 6 and the bar-mat reinforcement 5, as lead two copper plate electrodes 6 are coupled together with copper core cable;
C, lay thermal insulation layer 4 to the outside of bar-mat reinforcement 5;
D, the conducting concrete that configures is poured on the thermal insulation layer 4;
F, lay surface layer 1 in the outside of insulating barrier 2;
G, the floor plate body demoulding that will make through the f step; Draw the output that lead connects temperature controller 7 from a side copper plate electrode 6 of floor plate body; Draw two leads by the input of temperature controller 7 again; Connect the output of first switch 11 and second switch 12 respectively, let the input of first switch 11 be connected civilian power supply 9 through the input that lead connects lithium battery 10 and solar panel 8, second switch 12 successively through lead again, the circuit of accomplishing floor connects.
Conducting concrete 2 among the present invention is made up of water, cement, sandstone, carbon fiber and slag; During preparation; Earlier 15% water is put into container, and in container, add methylcellulose as dispersant, fully stirring is dissolved in the water it; In container, add 15% carbon fiber then, and stir; Slag with 25%, 20% sandstone and 25% cement mixing are put into concrete mixer, the mixed liquor in the container is added in the concrete mixer and constantly slowly stir at last, and thing to be mixed promptly may be cast on the thermal insulation layer 4 after becoming even pulpous state.
Claims (7)
1. energy-conservation conducting concrete underground heat floor; Comprise bar-mat reinforcement (5) and surface layer (1); It is characterized in that: conducting concrete layer (3) has been built in bar-mat reinforcement (5) outside; Conducting concrete layer (3) outside is equipped with surface layer (1), and the two ends of steel wire (5) are equipped with copper plate electrode (6), are provided with insulation board (13) between copper plate electrode (6) and the bar-mat reinforcement (5); And two copper plate electrodes (6) connect through lead, and wherein a side copper plate electrode (6) links to each other with external power source through lead.
2. a kind of energy-conservation conducting concrete underground heat floor as claimed in claim 1; It is characterized in that: also be equipped with thermal insulation layer (4) between bar-mat reinforcement (5) and the conducting concrete layer (3), also be equipped with insulating barrier (2) between conducting concrete layer (3) and the surface layer (1).
3. a kind of energy-conservation conducting concrete underground heat floor as claimed in claim 1 is characterized in that: also be provided with temperature controller (7) between external power source and the copper plate electrode (6).
4. a kind of energy-conservation conducting concrete underground heat floor as claimed in claim 1; It is characterized in that: external power source comprises solar panel (8) and civilian power supply (9), and both link to each other with temperature controller (7) with second switch (12) through first switch (11) respectively.
5. a kind of energy-conservation conducting concrete underground heat floor as claimed in claim 4 is characterized in that: also be provided with lithium battery (10) between solar panel (8) and first switch (11).
6. the preparation method of a kind of energy-conservation conducting concrete underground heat floor as claimed in claim 1 is characterized in that being processed by following steps:
A, reinforcing bar is put into the floor forming panel, longitudinal reinforcement and transverse steel are arranged with certain spacing respectively, and be welded as a whole, form bar-mat reinforcement (5) in the place, crosspoint;
B, copper plate electrode (6) is placed on the two ends of bar-mat reinforcement (5), separates with insulation board (13) between copper plate electrode (6) and the bar-mat reinforcement (5), two copper plate electrodes (6) are coupled together with lead;
C, lay thermal insulation layer (4) to the outside of bar-mat reinforcement (5);
D, the conducting concrete that configures is poured on the thermal insulation layer (4);
Insulating barrier (2) is laid in the outside of e, conductive concrete (3);
F, lay surface layer (1), accomplish the making of floor plate body in the outside of insulating barrier (2);
G, the floor plate body demoulding that will make through the f step; Draw the output that lead connects temperature controller (7) from a side copper plate electrode (6) of floor plate body; Draw two leads by the input of temperature controller (7) again; The output that connects first switch (11) and second switch (12) respectively; Let the input of first switch (11) be connected civilian power supply (9) through the input that lead connects lithium battery (10) and solar panel (8), second switch (12) successively through lead again, the circuit of accomplishing floor connects.
7. the preparation method of a kind of energy-conservation conducting concrete underground heat floor as claimed in claim 6; It is characterized in that: conducting concrete (2) is made up of water, cement, sandstone, carbon fiber and slag, and its percentage by weight is: water 15～30%, cement 15～25%, sandstone 10～20%, carbon fiber 15～30%, slag 15～25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110404388.8A CN102519072B (en) | 2011-12-08 | 2011-12-08 | Energy-saving electricity-conducting concrete geothermal floorslab and method for manufacturing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110404388.8A CN102519072B (en) | 2011-12-08 | 2011-12-08 | Energy-saving electricity-conducting concrete geothermal floorslab and method for manufacturing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102519072A true CN102519072A (en) | 2012-06-27 |
| CN102519072B CN102519072B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110404388.8A Expired - Fee Related CN102519072B (en) | 2011-12-08 | 2011-12-08 | Energy-saving electricity-conducting concrete geothermal floorslab and method for manufacturing same |
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| Country | Link |
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| CN (1) | CN102519072B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997322A (en) * | 2012-10-31 | 2013-03-27 | 赵宏祥 | Low-voltage direct-current heating plate and manufacturing technique thereof |
| CN104153470A (en) * | 2014-08-18 | 2014-11-19 | 太仓派欧技术咨询服务有限公司 | Heating wall body and manufacturing method thereof |
| CN105246180A (en) * | 2015-11-11 | 2016-01-13 | 郑家福 | Heat generation body adopting different materials to generate heat together |
| CN108098986A (en) * | 2018-01-31 | 2018-06-01 | 广州大学 | A kind of prestressing force conductive concrete structures and preparation method thereof |
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| JPS54110220A (en) * | 1978-01-24 | 1979-08-29 | Union Carbide Corp | Carbon fiber reinforced cement |
| EP0204672A2 (en) * | 1985-05-07 | 1986-12-10 | L G Innovations Ab | An electric heating element |
| CN1131261A (en) * | 1995-12-29 | 1996-09-18 | 王家君 | Current-conducting concrete electric heating device |
| CN101353239A (en) * | 2007-07-27 | 2009-01-28 | 一泰国际股份有限公司 | Conductive concrete, manufacturing method, heating system and method for melting ice and snow |
| CN202328476U (en) * | 2011-12-08 | 2012-07-11 | 东北石油大学 | Energy-saving conductive concrete geothermal floor slab |
-
2011
- 2011-12-08 CN CN201110404388.8A patent/CN102519072B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54110220A (en) * | 1978-01-24 | 1979-08-29 | Union Carbide Corp | Carbon fiber reinforced cement |
| EP0204672A2 (en) * | 1985-05-07 | 1986-12-10 | L G Innovations Ab | An electric heating element |
| CN1131261A (en) * | 1995-12-29 | 1996-09-18 | 王家君 | Current-conducting concrete electric heating device |
| CN101353239A (en) * | 2007-07-27 | 2009-01-28 | 一泰国际股份有限公司 | Conductive concrete, manufacturing method, heating system and method for melting ice and snow |
| CN202328476U (en) * | 2011-12-08 | 2012-07-11 | 东北石油大学 | Energy-saving conductive concrete geothermal floor slab |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997322A (en) * | 2012-10-31 | 2013-03-27 | 赵宏祥 | Low-voltage direct-current heating plate and manufacturing technique thereof |
| CN102997322B (en) * | 2012-10-31 | 2015-04-22 | 赵宏祥 | Low-voltage direct-current heating plate and manufacturing technique thereof |
| CN104153470A (en) * | 2014-08-18 | 2014-11-19 | 太仓派欧技术咨询服务有限公司 | Heating wall body and manufacturing method thereof |
| CN105246180A (en) * | 2015-11-11 | 2016-01-13 | 郑家福 | Heat generation body adopting different materials to generate heat together |
| CN108098986A (en) * | 2018-01-31 | 2018-06-01 | 广州大学 | A kind of prestressing force conductive concrete structures and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN102519072B (en) | 2015-06-10 |
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