CN100513347C - Conductive cement and method for preparing the same - Google Patents
Conductive cement and method for preparing the same Download PDFInfo
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- CN100513347C CN100513347C CNB200710024795XA CN200710024795A CN100513347C CN 100513347 C CN100513347 C CN 100513347C CN B200710024795X A CNB200710024795X A CN B200710024795XA CN 200710024795 A CN200710024795 A CN 200710024795A CN 100513347 C CN100513347 C CN 100513347C
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- electroconductive cement
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- steel slag
- raw material
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- 239000004568 cement Substances 0.000 title claims abstract description 106
- 238000000034 method Methods 0.000 title claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 38
- 238000010791 quenching Methods 0.000 claims abstract description 34
- 239000002893 slag Substances 0.000 claims abstract description 34
- 239000002994 raw material Substances 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000010440 gypsum Substances 0.000 claims abstract description 14
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000000465 moulding Methods 0.000 claims abstract description 13
- 239000004020 conductor Substances 0.000 claims abstract description 6
- 238000002360 preparation method Methods 0.000 claims description 25
- 238000012423 maintenance Methods 0.000 claims description 16
- 150000004683 dihydrates Chemical class 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 13
- 238000000227 grinding Methods 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 8
- 239000004576 sand Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000006227 byproduct Substances 0.000 abstract description 4
- 239000011398 Portland cement Substances 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 239000002440 industrial waste Substances 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 abstract 1
- 239000004567 concrete Substances 0.000 description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 9
- 229910002804 graphite Inorganic materials 0.000 description 9
- 239000010439 graphite Substances 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 230000005619 thermoelectricity Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 150000003926 acrylamides Chemical class 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- UYTPUPDQBNUYGX-UHFFFAOYSA-N guanine Chemical compound O=C1NC(N)=NC2=C1N=CN2 UYTPUPDQBNUYGX-UHFFFAOYSA-N 0.000 description 1
- 239000011396 hydraulic cement Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000011465 paving brick Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 208000009146 rhinoscleroma Diseases 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 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
- C04B28/14—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 calcium sulfate cements
- C04B28/141—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 calcium sulfate cements containing dihydrated gypsum before the final hardening step, e.g. forming a dihydrated gypsum product followed by a de- and rehydration step
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses conductive cement, comprising noumenon of cement, conductive material and modifying material. The invention is characterized in that the components of the conductive cement are in the following proportions that are ak quench steel slag: 20 percent - 50 percent; levigated natural dehydrate gypsum: 2 percent - 7 percent; others: portland cement clinker. The processing steps are that (1) the preparing of the raw materials for the conductive cement; (2).the mixing of the raw material in a certain proportion which is grinded in mill then; (3) the adding of water in a certain proportion and stirring the obtained material; (4) the molding, that is the obtained material from last step is maintained and coagulated under 15 DEG C-25 DEG C, and 85 percent -95 percent of humidity in 24 hours or more than 24 hours. The invention decreases the production cost of conductive cement, develops a new application of the industrial waste of ak quench steel slag, reduces the pollution to environment, and realizes recycling usage of byproduct of steel production.
Description
Technical field
The invention belongs to the building material industrial technology field, relate to cement products, more particularly, the present invention relates to a kind of electroconductive cement with property.In addition, the invention still further relates to the preparation method of this electroconductive cement.
Background technology
The conductivity of tradition cement is very poor.In many occasions; as in the construction and maintenance of the lightning protection of all kinds of nuclear powers, thermoelectricity, hydroelectric facility and all kinds of Highrise buildingss and anti-electrostatic engineering, the occasion of building in heat exchanger, kiln, the non-icing airfield runway and requiring to shield, need concrete to have certain electric conductivity.
In present known technology, general conducting concrete is to make by the mode of other interpolation electro-conductive material.The material that is used at present to prepare conducting concrete both at home and abroad has graphite, carbon fiber and steel (bits) fiber flock, conductive pearl essence etc.Below the relevant patent documentation and the technical information that retrieve are done a contrast introduction:
As China Patent No. is the patented technology that the patent documentation of CN1226526 discloses a kind of electrically conductive graphite cement boards and preparation method thereof, and this invention provides a kind of electrically conductive graphite cement composition, a kind of electrically conductive graphite cement boards of preparation thus and their preparation method.Its technical scheme is: electrically conductive graphite cement boards is by hydraulic cement being mixed with a certain proportion of graphite, silica powder, paper pulp and/or asbestos to form the electroconductive cement composition; With said composition and excessive buck uniform mixing, form the slurry of lower concentration; This slurry is configured as have the thin layer of the graphite cement of size and thickness that requires; And before the high pressure compression moulding of about 100～200kgf/fcm2 a plurality of thin layers of lamination, solidify then and make.The electrically conductive graphite cement boards of this invention can be used in the various uses, for example building decorative plate, electric charge anti-static plate and hot-plate.
And for example China Patent No. is the patented technology that the patent documentation of CN1241546A discloses a kind of Cray-electroconductive cement.Cray-electroconductive cement is a kind of ground connection resistance-lowering material.This material is disposed by a certain percentage by compositions such as graphite, Portland cement, active bentonite, copper sulfate and acrylamides and forms.This material can reduce by 10～4 times with former stake resistance, falling the resistance coefficient is 0.1～0.25, electricalresistivity＜2 Ω M, 20 ℃), the reduced rate of power frequency earthing resistance is greater than three times, the reduced rate of impulse earthed resistance is greater than more than three times, and nontoxic, non-corrosiveness, mechanical characteristic are equivalent to C20～C30 sand-cement slurry.It makes earth work become simple, and the practical technique effect is obvious.
But these material prices that above-mentioned technology adopted all compare expensive, and in stirring moulding process, can cause serious segregation, agglomerating and concrete 's air-containing is excessive, conductivity is unstable, problems such as concrete strength is low, have a strong impact on the performance of conducting concrete, the cost height of conducting concrete.
Summary of the invention
Problem to be solved by this invention provides a kind of electroconductive cement, its objective is guaranteeing that it has under the prerequisite of good mechanical performance and conductivity, reduces the manufacturing cost of electroconductive cement.
To achieve these goals, the technical scheme that the present invention takes is: this electroconductive cement that is provided, comprise cement body, electro-conductive material and material modified, and the content of described electroconductive cement is: 20%～50% ak quench steel slag; 2%～7% levigate natural dihydrate gypsum; All the other are Portland clinker, and above composition is made the raw material of electroconductive cement.
Described electroconductive cement be with 45% Portland clinker, 50% ak quench steel slag, 5% natural dihydrate gypsum is levigate is mixed and made into the raw material of electroconductive cement.
The performance of described Portland clinker is that 3 days ultimate compression strength is greater than 30MPa; In the described ak quench steel slag, Han Liang ≧ 20% of FeO; Described natural dihydrate gypsum is levigate to be not more than 2% to fineness.
The present invention also provides the preparation method of this electroconductive cement in order to realize the purpose identical with technique scheme, and its technical scheme is:
The technological process of this method is:
A), the raw material of preparation electroconductive cement;
B), enter the grinding machine grinding after being mixed in proportion with described electroconductive cement raw material;
C), described electroconductive cement raw material adds the water stirring in proportion;
D), make moulding;
E), maintenance is condensed more than 24 hours or 24 hours under 15～25 ℃ of envrionment temperatures, 85%～95% humidity condition.
Envrionment temperature during concrete enforcement and the technical scheme of humidity are: described envrionment temperature is 20 ℃; Described humidity is 90%.
When above-described preparation method was used to make clean slurry conductive articles, the mass ratio of the raw material of water and described electroconductive cement was 0.3: 1, and clean slurry stirs also makes moulding, and maintenance is condensed more than 24 hours or 24 hours.
In addition, when described preparation method is used to make glue sand conductive articles, adopt the raw material of described electroconductive cement, c in its technological process) step, other adds granular ak quench steel slag, and wherein, the ratio of the raw material of water, described electroconductive cement and the quality of granular ak quench steel slag is 0.3: 1: 3.8, glue sand stirs and makes moulding, and maintenance is condensed more than 24 hours or 24 hours.
The Zui Da Chi Cun ≦ 20mm of the particle profile of described granular ak quench steel slag.Further, the Zui Da Chi Cun ≦ 10mm of the particle profile of described granular ak quench steel slag.
The present invention adopts technique scheme, overcome the shortcoming on the present conducting concrete performance, reduced the cost of conducting concrete, the application new channel of this industrial waste of exploitation ak quench steel slag, minimizing realizes the recycling of Iron and Steel Production byproduct to the influence of environment.
Description of drawings
Below the expressed content of the accompanying drawing of this specification sheets is made brief description:
Fig. 1 is the preparation method's of an electroconductive cement involved in the present invention process flow diagram.
Embodiment
Contrast accompanying drawing below, by description to embodiment, to product of electroconductive cement involved in the present invention and preparation method thereof etc., be described in further detail, to help those skilled in the art inventive concept of the present invention, technical scheme there are more complete, accurate and deep understanding.
This electroconductive cement involved in the present invention comprises cement body, electro-conductive material and material modified.Wherein, the cement body is general Portland clinker commonly used.
In order to overcome the defective that in the existing public technology described in the background technology of this specification sheets, exists, be implemented under the prerequisite of the fundamental strength performance that guarantees cement and conductivity, reduce the purpose of manufacturing cost, the particularly material cost of electroconductive cement, the technical scheme that the present invention takes is: the content of described electroconductive cement is: 20%～50% ak quench steel slag; 2%～7% levigate natural dihydrate gypsum; All the other are Portland clinker, and above composition is made the raw material of electroconductive cement.
Portland clinker is the main component of electroconductive cement, plays bonding, scleroma effect; Ak quench steel slag is an electro-conductive material, plays the effect that reduces cement resistor; Natural dihydrate gypsum is the slow setting material, plays the effect of regulating cement setting time.
In technique scheme, for improving the ak quench steel slag of electroconductibility the subject of knowledge and the object of knowledge utilization, be the byproduct that Iron And Steel Industry is produced, using value generally speaking is not high.The present invention has developed the application new channel of this industrial production waste material of ak quench steel slag, makes it improve using value, and reduces the influence to environment, realizes the recycling of Iron and Steel Production byproduct.
The consumption of the requirement of FeO equal size and ak quench steel slag in the requirement of cement clinker quality, the ak quench steel slag can require different corresponding adjustment of doing according to concrete workability.In the narration of relevant embodiment below this paper, will do more detailed introduction to its proportioning.
Nontoxic, the non-corrosiveness of electroconductive cement provided by the present invention, radioactivity satisfy GB 6566 " the radioactive material nucleic is limited the quantity of " requirement.The electroconductive cement that adopts the present invention to produce not only has the excellent mechanical property of general cement, also has good electrical conductivity.This electroconductive cement product is unsetting hydraulic cementing materials, can be processed into arbitrary shape according to construction requirement, and it is simple to construct.Its mechanical property makes it can be used for disposing C20～C35 concrete.Electroconductive cement has radiation resistance and good shielding properties preferably.
Electroconductive cement involved in the present invention is applied to the lightning protection of all kinds of nuclear powers, thermoelectricity, hydroelectric facility and all kinds of Highrise buildingss and the construction and the maintenance of anti-electrostatic engineering as the ground connection resistance-lowering material.Since electroconductive cement have electric current by the time can generate heat, such heating is as safe as a house, can not cause burning, therefore, available its built heat exchanger, kiln, non-icing airfield runway, and the heat that utilizes its resistance to produce reaches insulation, drying, prevents the purpose of freezing.Can be used as building and ornament materials and be used for all kinds of civilian warming installations that need even heating and improve thermo-efficiency.
Its proportioning can adopt following scheme during concrete enforcement: described electroconductive cement be with 45% Portland clinker, 50% ak quench steel slag, 5% natural dihydrate gypsum is levigate is mixed and made into the raw material of electroconductive cement.This is a kind of proportioning commonly used, and its performance satisfies most of construction requirements.
The performance of described Portland clinker is that 3 days ultimate compression strength is greater than 30MPa; In the described ak quench steel slag, Han Liang ≧ 20% of FeO; Described natural dihydrate gypsum is levigate to be not more than 2% to fineness, and promptly the material behind the grinding should satisfy 80 microns square hole sieve screen over-sizes and is not more than 2%.
The present invention is in order to realize the purpose identical with technique scheme, the preparation method of this electroconductive cement also is provided, its technical scheme is: as the preparation method's of the expressed electroconductive cement of the present invention of Fig. 1 process flow diagram, the technological process of this method is:
A), the raw material of preparation electroconductive cement;
B), enter the grinding machine grinding after being mixed in proportion with described electroconductive cement raw material;
C), described electroconductive cement raw material adds the water stirring in proportion;
D), make moulding;
E), maintenance is condensed more than 24 hours or 24 hours under 15～25 ℃ of envrionment temperatures, 85%～95% humidity condition.
In step a), with 20%～50% ak quench steel slag; 2%～7% natural dihydrate gypsum; All the other raw materials of making electroconductive cement for Portland clinker mix earlier; The fineness of carrying out the raw material of its electroconductive cement behind the grinding through step b) is not more than 2%, and promptly material should satisfy 80 microns square hole sieve screen over-sizes and is not more than 2%.
Raw material with described electroconductive cement adds water; Clean slurry stirs; Maintenance is more than 24 hours or 24 hours under 15～25 ℃ of envrionment temperatures, 85%～95% humidity condition.Generally record resistivity and can be 2.81 Ω .m..Trial-produceed the test block of resistance 2.5k Ω electroconductive cement resistance successfully.
This product can be the same with Portland cement, directly electroconductive cement smeared installation on the cement flooring, also can be according to the floor assembling construction of construction needs any specification, and the same with paving brick convenient and swift, do not take room area, do not need any pipeline.
About the contribution of its present invention to the cost aspect, describe by following example: as the electroconductive cement of production floor heating system, its cost is about 24 yuan of every square metre of cost.According to present disclosed technical information introduction, adopt the electroconductive cement floor heating system of in this specification sheets background technology, mentioning, every square metre electroconductive cement floor, nearly 40 yuan of cost.The cost of electroconductive cement of the present invention only be above-mentioned electroconductive cement cost 60%, its economic performance is superior, has realized the purpose of the recycle and the Sustainable development of energy-saving and environmental protection and material.
Envrionment temperature during concrete enforcement and the technical scheme of humidity are: described envrionment temperature is 20 ℃; Described humidity is 90%.
When above-described preparation method was used to make clean slurry conductive articles, the mass ratio of the raw material of water and described electroconductive cement was 0.3: 1, and clean slurry stirs also makes moulding, and maintenance is condensed more than 24 hours or 24 hours.
In addition, when described preparation method is used to make glue sand conductive articles, adopt the raw material of described electroconductive cement, c in its technological process) step, other adds granular ak quench steel slag, and wherein, the ratio of the raw material of water, described electroconductive cement and the quality of granular ak quench steel slag is 0.3: 1: 3.8, glue sand stirs and makes moulding, and maintenance is condensed more than 24 hours or 24 hours.
The Zui Da Chi Cun ≦ 20mm of the particle profile of above-described granular ak quench steel slag.Further, the Zui Da Chi Cun ≦ 10mm of the particle profile of described granular ak quench steel slag.Selecting for use of the particles of different sizes of ak quench steel slag depended on the requirement of construction work to electroconductive cement.
The present invention also provides following concrete exemplifying embodiment except above embodiment, using under the various working condition with under the situation to different product requirements with convenient:
Embodiment one: described electroconductive cement be with 45% Portland clinker, 50% ak quench steel slag, to starch conductive articles only for the levigate raw material that is mixed and made into electroconductive cement of natural dihydrate gypsum be 0.3: 1 with the ratio of water and the quality of the raw material of electroconductive cement for all the other, clean slurry stirs moulding, and maintenance is more than 24 hours or 24 hours under 15～25 ℃ of envrionment temperatures, 85%～95% humidity condition.Its conductivity is fine, but cement setting time is long slightly, intensity is low slightly.
Envrionment temperature during concrete enforcement and the technical scheme of humidity are: described envrionment temperature is 20 ℃; Described humidity is 90%.
Embodiment two: described electroconductive cement is that the Portland clinker with 78%, 20% ak quench steel slag, 2% natural dihydrate gypsum mix the levigate electroconductive cement of making.Clean slurry conductive articles is 0.3: 1 with the ratio with water and the quality of the raw material of electroconductive cement, and clean slurry stirs moulding, and maintenance is more than 24 hours or 24 hours under 15～25 ℃ of envrionment temperatures, 85%～95% humidity condition.Its conductivity is better, but cement setting time is fast, intensity is high.
The environment of measuring the various performance index of electroconductive cement is: described envrionment temperature is 20 ℃; Described humidity is 90%.
Embodiment three: described electroconductive cement is that Portland clinker, 45% ak quench steel slag, 5% natural dihydrate gypsum with 55% mixes the levigate electroconductive cement of making, with ak quench steel slag as glue sand aggregate.The water lime-ash is than making the glue sand concrete for 0.3:1:3.8, and its conductivity is good, condense normal, intensity is higher.The environment of measuring the various performance index of electroconductive cement is: described envrionment temperature is 20 ℃, and described humidity is 90%.
Embodiment four: the maintenance envrionment temperature is 15 ℃, and all the other conditions are with above-mentioned embodiment.Be applicable to the production when hanging down temperature slightly, curing time needs proper extension.
Embodiment five: the maintenance envrionment temperature is 25 ℃, and all the other conditions are with above-mentioned embodiment.Production when being applicable to high slightly temperature, curing time is short slightly.
Embodiment six: maintenance humidity is 85%, and all the other conditions are with above-mentioned embodiment.Be applicable to the working condition that ambient moisture is low slightly.
Embodiment seven: maintenance humidity is 95%, and all the other conditions are with above-mentioned embodiment.Be applicable to the working condition that ambient moisture is higher.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or design of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (7)
1, a kind of electroconductive cement, comprise cement body, electro-conductive material and material modified, it is characterized in that the content of described electroconductive cement is: 45% Portland clinker, 50% ak quench steel slag, 5% natural dihydrate gypsum is levigate is mixed and made into the raw material of electroconductive cement; The performance of described Portland clinker is that 3 days ultimate compression strength is greater than 30MPa; In the described ak quench steel slag, Han Liang ≧ 20% of FeO; Material behind the described natural dihydrate gypsum grinding should satisfy 80 microns square hole sieve screen over-sizes and be not more than 2%.
2,, it is characterized in that the technological process of this method is according to the preparation method of the described electroconductive cement of claim 1:
A), the raw material of the described electroconductive cement of preparation;
B), enter the grinding machine grinding after being mixed in proportion with described electroconductive cement raw material;
C), described electroconductive cement raw material adds the water stirring in proportion;
D), make moulding;
E), maintenance is condensed more than 24 hours or 24 hours under 15～25 ℃ of envrionment temperatures, 85%～95% humidity condition.
3, according to the preparation method of the described electroconductive cement of claim 2, it is characterized in that: described envrionment temperature is 20 ℃; Described humidity is 90%.
4, according to the preparation method of the described electroconductive cement of claim 2, it is characterized in that: when described preparation method was used to make clean slurry conductive articles, the mass ratio of the raw material of water and described electroconductive cement was 0.3: 1, and clean slurry stirs also makes moulding.
5, according to the preparation method of the described electroconductive cement of claim 2, it is characterized in that: when described preparation method is used to make glue sand conductive articles, adopt the raw material of described electroconductive cement, c in described technological process) in the step, other adds granular ak quench steel slag, wherein, the ratio of the raw material of water, described electroconductive cement and the quality of granular ak quench steel slag is 0.3: 1: 3.8, and glue sand stirs and make moulding.
6, according to the preparation method of the described electroconductive cement of claim 5, it is characterized in that: the Zui Da Chi Cun ≦ 20mm of the particle profile of described granular ak quench steel slag.
7, according to the preparation method of the described electroconductive cement of claim 6, it is characterized in that: the Zui Da Chi Cun ≦ 10mm of the particle profile of described granular ak quench steel slag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710024795XA CN100513347C (en) | 2007-06-25 | 2007-06-25 | Conductive cement and method for preparing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710024795XA CN100513347C (en) | 2007-06-25 | 2007-06-25 | Conductive cement and method for preparing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101113089A CN101113089A (en) | 2008-01-30 |
| CN100513347C true CN100513347C (en) | 2009-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200710024795XA Expired - Fee Related CN100513347C (en) | 2007-06-25 | 2007-06-25 | Conductive cement and method for preparing the same |
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| Country | Link |
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| CN (1) | CN100513347C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310813A (en) * | 2014-09-28 | 2015-01-28 | 忻城县红运水泥有限责任公司 | Green ecological cement with stone wastes as raw material and production method of green ecological cement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104310813A (en) * | 2014-09-28 | 2015-01-28 | 忻城县红运水泥有限责任公司 | Green ecological cement with stone wastes as raw material and production method of green ecological cement |
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| CN101113089A (en) | 2008-01-30 |
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