CN101544488A - Conductive cement with nano-graphite - Google Patents
Conductive cement with nano-graphite Download PDFInfo
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- CN101544488A CN101544488A CN200910103613A CN200910103613A CN101544488A CN 101544488 A CN101544488 A CN 101544488A CN 200910103613 A CN200910103613 A CN 200910103613A CN 200910103613 A CN200910103613 A CN 200910103613A CN 101544488 A CN101544488 A CN 101544488A
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- Prior art keywords
- cement
- nano
- graphite
- conductive
- percent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004568 cement Substances 0.000 title claims abstract description 71
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 53
- 239000010439 graphite Substances 0.000 title claims abstract description 53
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 15
- 239000010425 asbestos Substances 0.000 claims abstract description 13
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 13
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 12
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical class O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 12
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000000440 bentonite Substances 0.000 claims description 11
- 229910000278 bentonite Inorganic materials 0.000 claims description 11
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 11
- UYTPUPDQBNUYGX-UHFFFAOYSA-N guanine Chemical compound O=C1NC(N)=NC2=C1N=CN2 UYTPUPDQBNUYGX-UHFFFAOYSA-N 0.000 claims description 11
- 239000003469 silicate cement Substances 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 abstract description 10
- 238000005260 corrosion Methods 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 abstract description 9
- 239000004020 conductor Substances 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000004566 building material Substances 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- 239000011398 Portland cement Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 150000004683 dihydrates Chemical class 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002135 nanosheet Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/90—Electrical properties
- C04B2111/94—Electrically conducting materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Conductive Materials (AREA)
Abstract
The invention belongs to the technical fields of building material industrial technology and overvoltage and grounding technology, and relates to conductive cement added with nano-graphite, which comprises the following compositions by weight percentage: 40 to 48 percent of cement, 5 to 30 percent of nano-graphite, 6 to 15 percent of carbon element, 1 to 8 percent of activated bentonite, 1 to 6 percent of copper sulphate, 1 to 6 percent of acrylamide, 1 to 6 percent of conductive pearl powder and 1 to 8 percent of asbestos. The conductive cement reduces corrosion on metal conductors, can also strengthen water absorption, moisture retention, and stability under the action of heavy current, further reduces the corrosivity of the conductive cement, and improves the performance of conductive cement products.
Description
Technical field
The present invention relates to electroconductive cement, belong to building material industrial technology, superpotential and grounding technology field, be specifically related to a kind of electroconductive cement that adds nano-graphite.
Background technology
Along with human society and science and technology development, modern architecture requires cement material except keeping original characteristic, also need some special functional performances, to adapt to multi-functional and needs intelligent construction, but because present traditional cement function singleness of using, can not satisfy the needs of modern construction engineering and the demand of new technology, particularly on control grounding resistance performance, need carry out certain improvement the material of traditional cement of present use.
In present existing technology, the method that solves control grounding resistance performance technologies problem all is to adopt by adding certain electro-conductive material at traditional cement, patent documentation as Chinese patent application 200710024795.X discloses a kind of electroconductive cement machine its preparation method, the electroconductive cement of this disclosure of the Invention, include the body of cement, electro-conductive material and material modified, in the content of electroconductive cement, ak quench steel slag is 20%～50%; The levigated natural dihydrate gypsum is 2%～7%; Remaining all is a silicate cement.And for example, Korea Institute of Energy Research; It is the patent of CN1226526 at China's application notification number that Bi Shan builds Co., Ltd., this patent documentation discloses a kind of electrically conductive graphite cement boards and preparation method thereof, wherein, the slurry of electrically conductive graphite cement boards is to mix with 20%～45% graphite, 5%～20% silica powder, 5%～15% paper pulp or asbestos by cement to form the electroconductive cement composition and excessive buck is uniformly mixed to form.In these above-mentioned technical schemes, though solved conductivity, but can better not reach the corrosion that had both reduced metallic conductor, can strengthen suction and water-retentivity again; Stability under big galvanic action and the further characteristic that reduces the corrosive nature of electroconductive cement.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of conducting electricity very well, and has both reduced the corrosion to metallic conductor, can strengthen suction and water-retentivity again; Stability under big galvanic action and the further electroconductive cement that reduces the corrosive nature of electroconductive cement.
In order to solve the problems of the technologies described above, the invention provides a kind of conductive cement with nano-graphite, component includes cement, nano-graphite, asbestos, carbon element, active bentonite, copper sulfate, acrylamide, conductive pearl essence, wherein; Each moiety according to the weight part proportioning is cement 40%～48%, nano-graphite 5%～30%, carbon element 6%～15%, active bentonite 1%～8%, copper sulfate 1%～6%, acrylamide 1%～6%, conductive pearl essence 1%～6%, asbestos 1%～8%.
Adopt the conductive cement with nano-graphite of technique scheme prescription, because what technical scheme of the present invention adopted is a certain proportion of nano-graphite, nano-graphite can be according to document [Guo chen, etal.Preparation and characterization of graphite nanosheets fromultrasonic powdering technique[J] .Carbon, 2004,42 (4): 753-759] Ji Zai making method, expanded graphite was soaked 12 hours in the aqueous ethanolic solution of volume ratio 65:35, in ultrasonic cleaner, pulverize some hrs then, make nano-graphite, good dispersity when using this nano-graphite and cementitious composite, be difficult for reuniting, than being easier to form conductive network, strengthened conductivity; Simultaneously, a certain proportion of carbon element, active bentonite, copper sulfate, acrylamide, conductive pearl essence, asbestos have also been adopted, these composition material compositions shrinkability that combination can increase cement intensity, cohesiveness, water-retentivity and reduce cement products through proper proportion, problems such as the intensity of conductive cement product is low have been solved, strengthened the physical strength of cement, and improved cohesiveness, the water-retentivity of cement and shrinkability and the pH value that reduces cement products simultaneously, improved the performance of conductive cement product.
Use the conductive nano cement of the technical program, it has the performance of cement on the one hand, can satisfy the requirement of strength on bases such as hydroelectric power plant, electric power line pole tower, and is with tower grounding body surrounding tightly, stolen to prevent; The performance that also has conduction is on the other hand effectively gone into system ground short circuit electric current or lightning current and is introduced the earth; Require its stable performance simultaneously, work-ing life is longer, and ground connector is not had corrosion, is embedded in non-environmental-pollution in the ground, easy construction etc.
Further, the weight part proportioning of the nano-graphite composition in the qualification conductive cement with nano-graphite is 5%～15%; The qualification of this scope is in order well to utilize the conductivity that adds nano-graphite on the one hand, to avoid adding too much graphite on the other hand again and cause cement intensity not to be guaranteed, and is the further qualification in nano-graphite 5%～30% scope.
Guarantee cement intensity after further guaranteeing to add graphite, further, limiting nano-graphite is the nano-graphite microplate, and its thickness is 11～75nm, and the microplate diameter is 0.2～20um;
Also can further limit, described nano-graphite size indicator: D100＜1000nm, D50＜400nm, carbon content 98-99-99.9-99.99% adds such nano-graphite, makes electroconductive cement have more high conduction performance, high absorbability and catalytic performance.
For the cement that uses, can be further, the cement that limits in the conductive cement with nano-graphite is silicate cement.
In above-mentioned technical scheme, described silicate cement, nano-graphite microplate all are the materials that can get access on the market, are enough to guarantee that by above-mentioned explanation those skilled in the art implement the technical scheme of this patent.
Embodiment
This product is the same with Portland cement, can directly electroconductive cement be smeared installation on the cement flooring, also can be made into the cement products assembling construction of any specification according to the needs of concrete construction.The present invention, a kind of conductive cement with nano-graphite, each moiety are cement, nano-graphite, carbon element, active bentonite, copper sulfate, acrylamide, conductive pearl essence, asbestos, its moiety is joined specific configuration as required according to weight part, below is several embodiment commonly used.
Embodiment one:
A kind of conductive cement with nano-graphite, each moiety according to the weight part proportioning are silicate cement 45%, nano-graphite 25%, carbon element 11%, active bentonite 5%, copper sulfate 3%, acrylamide 3%, conductive pearl essence 3%, asbestos 5%.
Embodiment two:
A kind of conductive cement with nano-graphite, each moiety according to the weight part proportioning are silicate cement 48%, nano-graphite 15%, carbon element 15%, active bentonite 8%, copper sulfate 3%, acrylamide 3%, conductive pearl essence 3%, asbestos 5%.
Embodiment three:
A kind of conductive cement with nano-graphite, each moiety according to the weight part proportioning are silicate cement 48%, nano-graphite 10%, carbon element 8%, active bentonite 8%, copper sulfate 6%, acrylamide 6%, conductive pearl essence 6%, asbestos 8%.
Embodiment four:
A kind of conductive cement with nano-graphite, each moiety according to the weight part proportioning are silicate cement 40%, nano-graphite 11%, carbon element 15%, active bentonite 8%, copper sulfate 6%, acrylamide 6%, conductive pearl essence 6%, asbestos 8%.
Embodiment five:
A kind of conductive cement with nano-graphite, each moiety according to the weight part proportioning are silicate cement 48%, nano-graphite 5%, carbon element 13%, active bentonite 8%, copper sulfate 6%, acrylamide 6%, conductive pearl essence 6%, asbestos 8%.
Following table one is to use the conductive nano cement of the technical program and the performance comparison explanation of Portland cement at present:
Table one
Wherein, the conductive nano cement of the technical program to the measurement of the corrosion rate of ground connector commonly used shown in following table two:
| Metal objects | Corrosion rate mm/ |
| Round steel | 0.0172 |
| Band steel | 0.0107 |
| Zinc-plated round steel | 0.0031 |
| Galvanized flat steel | 0.0024 |
Table two
Burying when ground, the conductive nano cement of the technical program to the measurement of the corrosion rate of ground connector shown in following table three:
| Metal objects | Corrosion rate mm/ |
| Round steel | 0.0095 |
| Band steel | 0.0052 |
| Zinc-plated round steel | 0.0041 |
| Galvanized flat steel | 0.0038 |
Table three
Following table four is to use the impact and the power current tolerance experiment of the conductive nano cement of the technical program:
The variation of conductive nano cement test product resistance before and after big galvanic action
Table four
Be to use the physicochemical property examination experiment of the conductive nano cement of the technical program below
1) dehydration experiment: after the dehydration experiment, the average resistivity of test product is 132 Ω .m
2) thermocycling experiment: the average resistivity of test product is 1.27 Ω .m behind thermocycling experiment
3) water logging bubble experiment: after the experiment of water logging bubble, the average resistivity of test product is 1.21 Ω .m
By above-mentioned contrast as can be seen, the conductive nano cement of use the technical program had both reduced the corrosion to metallic conductor, can strengthen suction and water-retentivity again, the corrosive nature of stability under big galvanic action and further reduction electroconductive cement.
The resistivity of the conductive nano cement of the technical program has certain variation along with variation of temperature, and concrete experimental data is as follows:
| T℃ | -15 | -10 | -5 | 0 | 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 |
| ρ.Ω.m | 6.81 | 5.55 | 4.75 | 4.01 | 3.78 | 3.54 | 3.42 | 3.37 | 3.31 | 3.22 | 3.10 | 2.98 |
Should be pointed out that above-described only is five kinds of embodiments of moiety of the present invention, does not limit protection scope of the present invention.
Claims (5)
1. conductive cement with nano-graphite, its component includes cement, nano-graphite, asbestos, it is characterized in that: also include carbon element, active bentonite, copper sulfate, acrylamide, conductive pearl essence, wherein, each moiety according to the weight part proportioning is cement 40%～48%, nano-graphite 5%～30%, carbon element 6%～15%, active bentonite 1%～8%, copper sulfate 1%～6%, acrylamide 1%～6%, conductive pearl essence 1%～6%, asbestos 1%～8%.
2. conductive cement with nano-graphite according to claim 1 is characterized in that: the weight part proportioning of described nano-graphite composition is 5%～15%.
3. conductive cement with nano-graphite according to claim 1 is characterized in that: described cement is silicate cement.
4. conductive cement with nano-graphite according to claim 1 and 2 is characterized in that: described nano-graphite is the nano-graphite microplate, and its thickness is 11～75nm, and the microplate diameter is 0.2～20um.
5. conductive cement with nano-graphite according to claim 1 and 2 is characterized in that: described nano-graphite size indicator: D100＜1000nm, D50＜400nm, carbon content 98-99-99.9-99.99%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910103613A CN101544488A (en) | 2009-04-16 | 2009-04-16 | Conductive cement with nano-graphite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910103613A CN101544488A (en) | 2009-04-16 | 2009-04-16 | Conductive cement with nano-graphite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101544488A true CN101544488A (en) | 2009-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910103613A Pending CN101544488A (en) | 2009-04-16 | 2009-04-16 | Conductive cement with nano-graphite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101544488A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011036463A1 (en) * | 2009-09-27 | 2011-03-31 | Halliburton Energy Services, Inc. | Cement compositions and methods utilizing nano-clay |
| US8476203B2 (en) | 2007-05-10 | 2013-07-02 | Halliburton Energy Services, Inc. | Cement compositions comprising sub-micron alumina and associated methods |
| CN103199349A (en) * | 2013-04-01 | 2013-07-10 | 何迎春 | Grounding module |
| US8598093B2 (en) | 2007-05-10 | 2013-12-03 | Halliburton Energy Services, Inc. | Cement compositions comprising latex and a nano-particle |
| US8741818B2 (en) | 2007-05-10 | 2014-06-03 | Halliburton Energy Services, Inc. | Lost circulation compositions and associated methods |
| US9206344B2 (en) | 2007-05-10 | 2015-12-08 | Halliburton Energy Services, Inc. | Sealant compositions and methods utilizing nano-particles |
| US9512351B2 (en) | 2007-05-10 | 2016-12-06 | Halliburton Energy Services, Inc. | Well treatment fluids and methods utilizing nano-particles |
| US9512346B2 (en) | 2004-02-10 | 2016-12-06 | Halliburton Energy Services, Inc. | Cement compositions and methods utilizing nano-hydraulic cement |
| CN106186944A (en) * | 2016-07-13 | 2016-12-07 | 西安建筑科技大学 | A kind of method improving cement-base composite material thermoelectricity capability |
| CN108776053A (en) * | 2018-04-04 | 2018-11-09 | 北京矿冶科技集团有限公司 | A kind of preparation method of microfine powder sample mating plate |
-
2009
- 2009-04-16 CN CN200910103613A patent/CN101544488A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9512346B2 (en) | 2004-02-10 | 2016-12-06 | Halliburton Energy Services, Inc. | Cement compositions and methods utilizing nano-hydraulic cement |
| US8940670B2 (en) | 2007-05-10 | 2015-01-27 | Halliburton Energy Services, Inc. | Cement compositions comprising sub-micron alumina and associated methods |
| US8476203B2 (en) | 2007-05-10 | 2013-07-02 | Halliburton Energy Services, Inc. | Cement compositions comprising sub-micron alumina and associated methods |
| US8586512B2 (en) | 2007-05-10 | 2013-11-19 | Halliburton Energy Services, Inc. | Cement compositions and methods utilizing nano-clay |
| US8598093B2 (en) | 2007-05-10 | 2013-12-03 | Halliburton Energy Services, Inc. | Cement compositions comprising latex and a nano-particle |
| US8741818B2 (en) | 2007-05-10 | 2014-06-03 | Halliburton Energy Services, Inc. | Lost circulation compositions and associated methods |
| US9206344B2 (en) | 2007-05-10 | 2015-12-08 | Halliburton Energy Services, Inc. | Sealant compositions and methods utilizing nano-particles |
| US9765252B2 (en) | 2007-05-10 | 2017-09-19 | Halliburton Energy Services, Inc. | Sealant compositions and methods utilizing nano-particles |
| US9512351B2 (en) | 2007-05-10 | 2016-12-06 | Halliburton Energy Services, Inc. | Well treatment fluids and methods utilizing nano-particles |
| WO2011036463A1 (en) * | 2009-09-27 | 2011-03-31 | Halliburton Energy Services, Inc. | Cement compositions and methods utilizing nano-clay |
| CN103199349B (en) * | 2013-04-01 | 2016-08-17 | 宁波高新区远创科技有限公司 | Earthing module |
| CN103199349A (en) * | 2013-04-01 | 2013-07-10 | 何迎春 | Grounding module |
| CN106186944A (en) * | 2016-07-13 | 2016-12-07 | 西安建筑科技大学 | A kind of method improving cement-base composite material thermoelectricity capability |
| CN106186944B (en) * | 2016-07-13 | 2018-11-13 | 西安建筑科技大学 | A method of improving cement-base composite material thermoelectricity capability |
| CN108776053A (en) * | 2018-04-04 | 2018-11-09 | 北京矿冶科技集团有限公司 | A kind of preparation method of microfine powder sample mating plate |
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Application publication date: 20090930 |