CN108675731A - Nano modification thermoelectricity mortar is protected with intelligent cathode with preparation method and thermoelectric structure and is deteriorated from monitoring system and preparation method - Google Patents
Nano modification thermoelectricity mortar is protected with intelligent cathode with preparation method and thermoelectric structure and is deteriorated from monitoring system and preparation method Download PDFInfo
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- 230000005619 thermoelectricity Effects 0.000 title claims abstract description 94
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 70
- 238000012986 modification Methods 0.000 title claims abstract description 52
- 230000004048 modification Effects 0.000 title claims abstract description 52
- 238000012544 monitoring process Methods 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 239000010410 layer Substances 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000004568 cement Substances 0.000 claims abstract description 31
- 239000004576 sand Substances 0.000 claims abstract description 16
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 10
- 239000011707 mineral Substances 0.000 claims abstract description 10
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 49
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 41
- 239000002002 slurry Substances 0.000 claims description 39
- 239000006185 dispersion Substances 0.000 claims description 35
- 239000007788 liquid Substances 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 35
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 claims description 28
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 claims description 28
- 239000004744 fabric Substances 0.000 claims description 27
- 229910002899 Bi2Te3 Inorganic materials 0.000 claims description 25
- 229910021389 graphene Inorganic materials 0.000 claims description 22
- 238000005260 corrosion Methods 0.000 claims description 21
- 229910052799 carbon Inorganic materials 0.000 claims description 20
- 230000007797 corrosion Effects 0.000 claims description 20
- 239000010936 titanium Substances 0.000 claims description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 19
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 18
- 229910052719 titanium Inorganic materials 0.000 claims description 18
- 239000004567 concrete Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 17
- 230000003014 reinforcing effect Effects 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 15
- 239000002086 nanomaterial Substances 0.000 claims description 14
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- 230000000694 effects Effects 0.000 claims description 12
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- 239000002344 surface layer Substances 0.000 claims description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000004917 carbon fiber Substances 0.000 claims description 7
- 239000003550 marker Substances 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 7
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 5
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- 230000008025 crystallization Effects 0.000 claims description 5
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- 230000007246 mechanism Effects 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
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- 239000000758 substrate Substances 0.000 claims description 5
- 238000005119 centrifugation Methods 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 238000000713 high-energy ball milling Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000003786 synthesis reaction Methods 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 235000012241 calcium silicate Nutrition 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000007791 liquid phase Substances 0.000 claims description 3
- 238000006722 reduction reaction Methods 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 241000446313 Lamella Species 0.000 claims description 2
- 229920000877 Melamine resin Chemical class 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 125000001931 aliphatic group Chemical group 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 2
- 238000005234 chemical deposition Methods 0.000 claims description 2
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- 239000012153 distilled water Substances 0.000 claims description 2
- 238000004945 emulsification Methods 0.000 claims description 2
- 235000013312 flour Nutrition 0.000 claims description 2
- 239000010438 granite Substances 0.000 claims description 2
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
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- 235000009566 rice Nutrition 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical class NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000008399 tap water Substances 0.000 claims description 2
- 235000020679 tap water Nutrition 0.000 claims description 2
- 239000004640 Melamine resin Chemical class 0.000 claims 1
- 241000209094 Oryza Species 0.000 claims 1
- 239000005864 Sulphur Substances 0.000 claims 1
- 150000007513 acids Chemical class 0.000 claims 1
- 238000000498 ball milling Methods 0.000 claims 1
- -1 belite sulphur aluminic acid Salt Chemical class 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000011241 protective layer Substances 0.000 abstract description 7
- 230000006378 damage Effects 0.000 abstract description 5
- 239000011159 matrix material Substances 0.000 abstract description 3
- 239000008030 superplasticizer Substances 0.000 abstract 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 20
- 239000011787 zinc oxide Substances 0.000 description 14
- 238000004210 cathodic protection Methods 0.000 description 11
- 238000012360 testing method Methods 0.000 description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
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- 229910018985 CoSb3 Inorganic materials 0.000 description 3
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- 230000002633 protecting effect Effects 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- 239000010405 anode material Substances 0.000 description 2
- 238000000975 co-precipitation Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000002178 crystalline material Substances 0.000 description 2
- 229940112669 cuprous oxide Drugs 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 239000002114 nanocomposite Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000870 Weathering steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
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- 238000010348 incorporation Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
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- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 238000004092 self-diagnosis Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
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- 230000002459 sustained effect Effects 0.000 description 1
- PDYNJNLVKADULO-UHFFFAOYSA-N tellanylidenebismuth Chemical compound [Bi]=[Te] PDYNJNLVKADULO-UHFFFAOYSA-N 0.000 description 1
- XSOKHXFFCGXDJZ-UHFFFAOYSA-N telluride(2-) Chemical compound [Te-2] XSOKHXFFCGXDJZ-UHFFFAOYSA-N 0.000 description 1
- 230000003313 weakening 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
- C04B28/06—Aluminous cements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
Abstract
It is protected and is deteriorated from monitoring system and preparation method with intelligent cathode the present invention relates to a kind of nano modification thermoelectricity mortar and preparation method and thermoelectric structure, the nano modification thermoelectricity mortar includes thermoelectricity component, conductance component, mineral admixture, mountain sand, super plasticizer, water and cement.Obtained nano modification thermoelectricity mortar be used as it is inside and outside there are the thermoelectric structure of temperature difference electrothermal module power supply and damage from sensing layer when have with thermoelectric structure matrix intrinsic strength and impervious durability, Seebeck coefficient are high, conductance sensing capabilities are good many advantages, such as, can synchronize and realize that thermoelectric structure intelligent cathode protects and protective layer is deteriorated from Monitoring efficiency.
Description
Technical field
The present invention relates to a kind of nano modification thermoelectricity mortar and preparation methods and thermoelectric structure to be protected and be deteriorated with intelligent cathode
From monitoring system and preparation method, belong to nanocomposite, cathodic protection and sensing detection technical field.
Background technology
With China's industry 2.0,3.0,4.0 parallel fast developments, various regions thermoelectric structure such as thermoelectricity chimney, cooling
The quantity and capacity of tower, cistern etc. increase in geometry multiple.However, corresponding thermoelectric structure is residing to spray damp and hot alternating and salt fog
Erosion environment can make its corrosive degradation all much more serious than ordinary construction, the also easily deterioration stripping of protection surface layer.Weathering steel or tree
Fat reinforcing bar method mixes the traditional structures anti-corrosion methods such as corrosion inhibitor method, applying coating method, sacrificial anode protection and is difficult to fundamentally solve
Certainly its structure reinforcing bars corrodes, and let alone peels off and carries out effectively and timely early warning to corresponding protective layer fouling deterioration, cracking.
Cathode protection method be it is a kind of to be corroded rebar surface apply an impressed current, reinforcing bar become cathode, to make
Obtaining the electron transfer that reinforcement corrosion occurs is inhibited, the method for avoiding or weakening reinforcement corrosion reaction.Cathode protection method is main
There are two types of：Sacrificial anode protection, impressed current cathodic protection method.China Patent No. " ZL201210241970.1 " combines Ti batten masters
Anode, Ti net auxiliary anode, cement based nano composite material and carbon cloth, form cathodic protection anode function and know with force self is answered
Integral intelligent composite material, this anode and the clothes that on the one hand can significantly extend anode material from perception integral intelligent mortar
The service life is used as a servant, on the one hand there is higher conductivity, promotes cathodic protection current efficiency, another further aspect can also monitor steel reinforced concrete knot in real time
The stress distribution of structure key area.However this still falls within sacrificial anode protection, can not overcome that protective current is small, the anode material longevity
The defects of life is shorter, difficulty of construction is big.And impressed current cathodic protection method also faces in actual configuration, utilization and maintenance process
Following main problem：It is difficult for thermoelectric structure and stable power supply (especially thermoelectric structure from far-off regions), system construction is provided
Complexity, energization will increase structure insecurity etc., it is obviously desirable to further develop self-powered cathode protection technology.
Cement-based mortar with coagulation soil matrix thermoelectric structure main body due to having natural compatibility, low cost and long-acting corrosion resistant
Corrosion energy and given more sustained attention.If can thermoelectric structure protection mortar coating systems further be introduced thermoelectricity component, thermal energy is utilized
The directed movement effect of carrier inside thermoelectricity mortar is excited, and converts the temperature difference thermal energy of its both sides to electric energy, is formed included
The structure cathode protection system of power supply will be of great significance.For this purpose, China Patent Publication No. " CN106082858A ",
" CN106082730A ", " CN107188485A ", " CN107188485A " individually disclose a kind of manganese oxide complex cement base heat
Electric material and preparation method thereof, a kind of zinc oxide complex cement base thermoelectricity material and preparation method thereof, a kind of cuprous oxide are compound
Cement base thermoelectricity material and preparation method thereof, attempting development one kind, (Seebeck coefficient is up to 1500 μ v/ with high Seebeck coefficient
DEG C) thermoelectricity mortar, and attempt built it is a kind of based on thermoelectricity mortar thermo-electric generation ocean structure corrosion self-immunity systems.In
State's patent No. 200810034933,201110461097 each provides a kind of microwave liquid phase heating, co-precipitation reduction legal system
Standby nano bismuth telluride (Bi2Te3) thermoelectric material method.China Patent No. 200910272447, publication number CN1594623A difference
Report the method for preparing nano skutterudite compound thermoelectric material with high-energy ball milling method combination discharge plasma sintering.
However, on the one hand, due to above-mentioned thermoelectricity component manganese dioxide, zinc oxide, cuprous oxide, bismuth telluride, skutterudite
Although it is high to close object Seebeck coefficient, its internal resistance is high, the thermocurrent generated under the effect of outside sustaining temperature difference in thermoelectric structure
It is limited, it is often difficult to meet requirement of the thermoelectric structure corrosion from immune cathodic protection power supply, the synchronous conductive component that introduces is needed to reduce
Its resistivity；On the one hand, above-mentioned thermoelectricity component has higher oxidability, can interfere mortar hydrated cementitious, final to mortar
Hardening strength has certain influence, needs replacing cementitious material, adding of fiber or super fine powder additives come toughened and reinforced, and then ensures heat
Intrinsic safeguard function of the electric mortar to thermoelectric structure；In another aspect, can not be deteriorated to corresponding protective layer fouling, cracking is peeled off and carried out
Effectively timely early warning.
Invention content
The present invention is to overcome drawbacks described above, provides a kind of nano modification thermoelectricity mortar and preparation method thereof；And by thermoelectricity sand
Slurry is sprayed at thermoelectric structure surface and serves as protective layer, is realized and is generated electricity there are the temperature difference using thermoelectric structure ectonexine, and then built certainly
Charged reinforcing bar Cathodic Protection System；Meanwhile it being built using the power of nano modification thermoelectricity mortar protective layer-electricity Intellisense characteristic
Itself deterioration is from monitoring and from pre-alarming system.
The present invention adopts the following technical scheme that：
A kind of nano modification thermoelectricity mortar includes each component with following mass fraction：
0.00005~0.05 part of CNT pulvis, directly contains 0.00005~0.05 part at 0.00005~0.05 part of CNF pulvis
The CNT aqueous slurries of CNT, directly contain 0.00001~0.005 at the GO dispersion liquids directly containing 0.00001~0.005 part of GO
One kind in the graphene conductive slurry of part graphene, 0.005~0.1 part of nanometer MnO2, 0.005~0.1 part of nanometer Cu2O、
0.005~0.1 part of nano-ZnO, 0.005~0.1 part of nanometer Bi2Te3, 0.005~0.1 part of nano Co Sb3In one kind, 0.005
~0.05 part of Concrete superplastizer, 0.25~0.5 part of water, 1 part of cement, 0~0.15 part of mineral admixture, 1.5~3 parts of mountains
Sand.
Further, the CNT pulvis is single wall CNT or multi wall CNT, and a diameter of 1-60nm, length is 2-50 μm；CNF
A diameter of 200-600nm of pulvis, length are 5-50 μm；CNT aqueous slurries are the electrocondution slurry of concentration 5-10wt.%；GO points
A concentration of 1-10mg/mL of dispersion liquid, oxygen content 20%, piece diameter is 1-500nm, lamella is 1-10 layers；Graphene conductive slurry
The waterborne conductive slurry for being 1-5 μm for concentration 2-5wt.%, piece diameter.
Further, the nanometer MnO2It is averaged for what is prepared using hydro-thermal, hydro-thermal-gel or chemical deposition synthesis technology
Grain size is the MnO of 1-100nm2Pulvis or corresponding aqueous suspension；Nanometer Cu2O is using hydro-thermal method, chemical reduction method or water-soluble
Average grain diameter prepared by liquid synthesis technology is the Cu of 1-100nm2O pulvis or corresponding aqueous suspension；Nano-ZnO is using water
It is the ZnO pulvis of 1-100nm or corresponding water that heat, hydro-thermal-gel, emulsification pretreatment or high-energy ball milling, which close average grain diameter prepared by technique,
Property suspension；Nanometer Bi2Te3For average grain diameter the receiving for 10-100nm for using microwave liquid phase heating or coprecipitation to prepare
Rice Bi2Te3Pulvis or corresponding aqueous suspension；Nano Co Sb3To be prepared using high-energy ball milling method combination discharge plasma sintering method
Average grain diameter be 60-100nm nano Co Sb3Pulvis or corresponding aqueous suspension.
Further, the Concrete superplastizer is polycarboxylic acid, naphthalene sulfonic salt, sulfamic acid salt, melamine
One or more of resinae, aliphatic category high efficiency water reducing agent；When raw material is CNT pulvis or CNF pulvis, concrete is surpassed
Plasticiser, which synchronizes, is used as CNT or CNF aqueous dispersions.
Further, the water is one kind in ordinary tap water, distilled water, deionized water；For disperse CNT, CNF,
The water of GO is same class water with the water in CNT dispersion, GO dispersion liquids, CNT aqueous slurries and graphene conductive slurry.
Further, the cement is high belite sulphate aluminium cement or sulphate aluminium cement.
Further, the mineral admixture is one kind in flyash, super finely ground slag, silica flour.
Further, the mountain sand is mountain sand made of crushing granite, and maximum particle diameter, minimum grain size are respectively
2.36nm, 0.15nm, fineness modulus is between 1.5-2.2.
A kind of preparation method of nano modification thermoelectricity mortar described above, includes the following steps：
The first step：Prepare nano material dispersion liquid：CNT pulvis or CNF pulvis are added dissolved with Concrete superplastizer
In water, and ultrasonic disperse processing is carried out, then adds a nanometer MnO2, nanometer Cu2O, nano-ZnO, nanometer Bi2Te3Or nanometer
CoSb3, continue ultrasonic disperse processing, centrifugation again later obtains CNT hybrids MnO2, nanometer Cu2O, nanometer
ZnO, nanometer Bi2Te3Or nano Co Sb3Nano material dispersion liquid or CNF hybrids MnO2, nanometer Cu2O, nano-ZnO, receive
Rice Bi2Te3Or nano Co Sb3Nano material dispersion liquid；Or directly GO dispersion liquids, CNT aqueous slurries or graphene conductive are starched
Material is proportionally added into the water dissolved with Concrete superplastizer, then adds a nanometer MnO2, nanometer Cu2O, nano-ZnO, nanometer
Bi2Te3Or nano Co Sb3, and certain ultrasonic disperse energy is inputted, using centrifugation, form GO hybrids MnO2、
Nanometer Cu2O, nano-ZnO, nanometer Bi2Te3Or nano Co Sb3Nano material dispersion liquid or CNT hybrids MnO2, nanometer
Cu2O, nano-ZnO, nanometer Bi2Te3Or nano Co Sb3Nano material dispersion liquid or graphene hybrid MnO2, nanometer
Cu2O, nano-ZnO, nanometer Bi2Te3Or nano Co Sb3Nano material dispersion liquid, it is spare；
Second step：By cement, mineral admixture, mountain sand and according to water-cement ratio determine remaining water sequentially add agitated kettle
It is interior, it stirs and evenly mixs；
Third walks：Nano material dispersion liquid is added, is mixed into the mortar that second step is prepared, then stirs evenly；
A kind of thermoelectric structure using the preparation of above-mentioned nano modification thermoelectricity mortar is protected with intelligent cathode and is deteriorated from monitoring
The preparation method of system, includes the following steps：
Netted hearth electrode is placed on thermoelectric structure surface layer in advance, pours nano modification thermoelectricity mortar slurry, indentation titanium net sun
Electrode, then nano modification thermoelectricity mortar slurry is poured, cast or compaction moulding；To local jog position cement-base infiltration crystallization material
Material repairing smoothes out, and carbon cloth top electrode is re-layed before final set；Plastic covering film, and placed in room temperature, sealed environment
It is 3-24 hours, curing.
Further, for the nano modification thermoelectricity screed as electrothermal module power supply, it is directly connected to thermoelectric structure steel
Muscle net, titanium net anode and carbon cloth top electrode, Seebeck coefficient, electromotive force height evaluate its temperature difference under integrated structure internal-external temperature difference
Generating efficiency, and structure reinforcing bars corrosion is assessed from immune operation mechanism and operational efficiency by electrochemical workstation；
Further, for needing regional area to develop the nano modification thermoelectricity screed of its power fax sense effect, with boat
The netted hearth electrode of nano modification thermoelectricity screed and carbon cloth top electrode are respectively connected to cover microprocessor, total by blind plug
The distributed monitoring node of line interface, communication interface, data acquisition board passes through different force or the lower screed electric property of strain
Parameter Variation evaluates its sensitivity and stability；And antenna substrate is pasted with conductive silver paste in carbon fiber cloth top electrode face and put down
Surface antenna, then access cover the wireless data transmission communication equipment of vector analysis instrument, analog-digital converter and demodulator, realize nothing
The communications of line number evidence；Waterproof finishing coat and marker layer are coated successively in nano modification thermoelectricity screed surrounding later,
Dense package layer is collectively formed.
A kind of thermoelectric structure using method described above preparation is protected with intelligent cathode and is deteriorated from monitoring system.
Compared with prior art, the present invention has following excellent technique effect：
Conductive nano and thermoelectricity component are synchronized and introduce thermoelectric structure protection mortar coating systems, first, synchronous incorporation nanometer
Conductance component (CNT or CNF pulvis or GO dispersion liquids or CNT aqueous slurries or graphene conductive slurry) effectively to reduce mortar electricity
Resistance rate promotes thermocurrent；Second, by the way that the portland cement that will produce alkaline calcium hydroxide in hydration process is replaced with nothing
The sulphate aluminium cement of alkaline hydrated product effectively avoids high thermoelectrical efficiency thermoelectricity component (nanometer MnO2、Cu2O、ZnO、Bi2Te3
Or CoSb3) oxygenolysis under alkaline environment, and then hydrated cementitious process is influenced, and CNT/CNF in combined nano conductance component
Fiber reinforced, GO template effects or mineral admixture Micro-aggregate filling effect realize the toughened and reinforced of mortar, and then ensure heat
Intrinsic safeguard function of the electric mortar to thermoelectric structure；Third, protecting sand by using expanding cement thermoelectric structure is effectively relieved
Pulp layer shrinkage cracking and sulphate corrosion problem, realize nano modification thermoelectricity mortar essential to intrinsic strength with it is impervious durable
Property；Fourth, using mixed with high thermoelectrical efficiency thermoelectricity component (nanometer MnO2、Cu2O、ZnO、Bi2Te3Or CoSb3) nano modification heat
Electric screed when serving as thermoelectric structure electrothermal module power supply, can be led under temperature difference effect existing for ectonexine itself because of its space
Ther mal network and generate thermoelectric voltage (stream) to realize thermo-electric generation function, effectively solve to protect using impressed current cathodic protection method
What is faced when large volume, towering arc thermoelectric structure is difficult to install power supply, and energization will increase the challenges such as structure insecurity；
Fifth, being filled using mixed with nanometer conductance component (CNT, CNF pulvis, GO dispersion liquids, CNT aqueous slurries or graphene conductive slurry)
Possess reticulated conductive access when mortar power electricity sensing layer, and then its electrical parameter can be because of carrier in the case where adding stress/strain outside
The variation of tunnelling and physical connection quantity and change, realize power electricity sensing function, final nano modification thermoelectricity mortar serves as protection
When layer can stress/strain, crack damage suffered by effectively perceive itself ability, final development structure reinforcement corrosion from it is immune with it is anti-
Sheath deteriorates self diagnosis system, General Promotion thermoelectric structure service life.
Description of the drawings
Fig. 1 is the thermoelectric structure intelligent cathode protection of the present invention and deteriorates from monitor architecture diagrammatic cross-section；
Reference numeral is as shown in the figure：1, thermoelectric structure concrete surface；2, netted hearth electrode；3, titanium net anode；4, it receives
The modified thermoelectricity screed of rice；5, carbon cloth top electrode；6, waterproof finishing coat；7, marker coating；8, cement-based penetrant knot
Brilliant material.
Specific implementation mode
Embodiment 1
As shown in Figure 1, a kind of thermoelectric structure is protected with intelligent cathode and is deteriorated from monitoring system, including the heat set gradually
Electric structure, netted hearth electrode 2, titanium net anode 3 and carbon cloth top electrode 5, it is mixed that the netted hearth electrode 2 is layed in thermoelectric structure
Solidifying 1 surface layer of soil matrix face is divided between netted hearth electrode 2 and titanium net anode 3 and between titanium net anode 3 and carbon cloth top electrode 5
It is not folded with nano modification thermoelectricity screed 4,5 surface layer of carbon cloth top electrode is equipped with waterproof finishing coat 6 and signal successively
Guide coat 7.Local jog position is repaired with cement-base infiltration crystallization material 8 in the nano modification thermoelectricity screed 4 smoothes out.
It, will be with steel in thermoelectric structure concrete surface 1 when the nano modification thermoelectricity screed 4 is used as electrothermal module power supply
Muscle net, titanium net anode 3 and carbon cloth top electrode 5 are connected；The nano modification thermoelectricity screed 4 is used as deterioration from monitoring sensing
When layer, it is connected with netted hearth electrode 2 and carbon cloth top electrode 5, is used in combination aviation plug access distributed monitoring node (must if having
Access wireless data transmission communication equipment), the cement-base infiltration crystallization material 8, waterproof finishing coat 6, marker coating 7
The technology known to professional and technical personnel in the field can be used to prepare, and carry out Specialist prosthetic or coating.
The preparation process of the nano modification thermoelectricity mortar is as follows：
The first step：1.5g diameters 20-30nm, 5-15 μm of length CNT pulvis be added to the mass concentration that total amount is 400mL and be
In 1wt.% polycarboxylic acid Concrete superplastizer aqueous solutions, then with the ultrasonic energy of 90W per second handle 60min, ultrasound at
Science and engineering skill is the every ultrasound intervals 5s 1s；Later in CNT dispersion obtained or the CNT aqueous slurries directly bought add 10g,
Average grain diameter is the nanometer MnO of 60nm2, then with the ultrasonic energy processing 30min of 90W per second, ultrasonic processing technique is every ultrasound
The intervals 5s 1s ultimately forms CNT hybrids MnO2Dispersion liquid, it is 100mL large capacity centrifuges to be packed into capacity in batches, with
3000rpm rotating speed centrifugal treating 20min extract upper liquid, final to obtain CNT hybrids MnO2Dispersion liquid, it is spare；
Second step：Water-cement ratio is set as 0.45, by 0.8kg high belites sulphate aluminium cement, I grade of flyash of 0.2kg according to
In secondary addition glue sand agitated kettle, with bottom gear (120rpm) mixing, the mountains 1.6kg sand is then added, handles 1min；Add according to
According to 0.45 water-cement ratio and deduct CNT hybrids MnO2Remaining water after water, stirs evenly in dispersion liquid；
Third walks：100mLCNT hybrids MnO is added in the mortar being prepared to second step2Dispersion liquid, first with low
Speed gear (120rpm) stirs 1min, then top gear (240rpm) is used to stir 3min；
4th step：Cast is packed into and is pre-placed netted length, width and height=160mm × 40mm × 40mm prisms to electrode
In mold, wherein being 120mm, floating of vibrating, molding nanometer CNT/MnO to electrode spacing2Modified thermoelectricity mortar；Covering modeling later
Expect film, and demoulded after placing 5hr in room temperature, sealed environment, standard curing is cured to 3d ages.
With Crystal by Solution Conductivity Measurement characterization CNT hybrids MnO2CNT, MnO in dispersion liquid2Evenly dispersed and stable state,
The front and back electrical conductivity of solution of dispersion is respectively 87.73S/cm, 0.92S/cm；CNT/MnO is surveyed with glue sand coagulation time tester2Change
Property thermoelectricity mortar slurry it is initial, terminate setting time be respectively 50min, 200min, show CNT, MnO2Introducing to slurry
Setting time influences little.CNT/MnO is tested with universal material experimental machine2It is modified the anti-foldings of thermoelectricity mortar hardening test block 3d, resistance to compression
Intensity is respectively 9.54MPa, 68.1MPa；It is 200s to survey its strain rate with Thelma Hopkins compression bar method-1, compressive strength is
320.7MPa。
Use Seebeck coefficient tester respectively or combine thermostatic water bath and thermocouple self- made tester, thermal conductivity measuring apparatus,
CNT/MnO of the LCR digital electric bridges connection after maintenance, drying, heat-insulation and heat-preservation encapsulation2Modified thermoelectricity mortar it is netted to electrode,
It tests in parallel electric under AC impedance, 10kHz frequencies under its Seebeck coefficient, thermal coefficient, dc resistivity, 10kHz frequencies
Capacitance is respectively 1635.7mV/K, 0.426W/ (mK), 529.5k Ω cm, 8.46k Ω, 95.3nF.
A kind of thermoelectric structure with intelligent cathode protect with deteriorate it is as follows from the preparation process of monitoring system：
When needing to carry out thermoelectric structure cathodic protection and protective layer damage from when monitoring, placed in advance on thermoelectric structure surface layer
The netted bottom stainless steel hearth electrode of 40-180 mesh, thickness 2-5mm pours the above-mentioned CNT/MnO stirred evenly of 5-10mm thickness2Modified heat
Electric mortar slurry, is pressed into the braiding afflux net type titanium net positive electrode of 40-200 mesh, thickness 1-2mm, then pours 15-50mm thickness
CNT/MnO2Modified thermoelectricity mortar slurry, compaction moulding；To local jog position cement well-known to those skilled in the art
Based penetrant crystalline material layer carries out repairing floating, and the PAN base carbon fibers that thickness is 0.111mm or 0.167mm are re-layed before final set
Tie up cloth top electrode；It is further comprising the steps of after compaction moulding：Plastic covering film, and placement 7 is small in room temperature, sealed environment
When after demould, and it is curing to 7d ages.
For the nano modification thermoelectricity screed as electrothermal module power supply, it is directly connected to thermoelectric structure bar-mat reinforcement, titanium net
Anode and carbon cloth top electrode, the thermoelectricity such as Seebeck coefficient, electromotive force parameter height evaluates its temperature under integrated structure internal-external temperature difference
Poor generating efficiency, and structure reinforcing bars corrosion is assessed from immune operation mechanism and operational efficiency by electrochemical workstation.
For needing regional area, the nano modification thermoelectricity screed for developing its power fax sense effect is needed, is inserted with aviation
Head is respectively connected to the netted hearth electrode of nano modification thermoelectricity screed and carbon cloth top electrode to cover microprocessor, bus connects
The distributed monitoring node of mouth, communication interface, data acquisition board passes through screed electric parameters under different force/strain
Changing rule evaluates its sensitivity and stability；And antenna substrate and plane day are pasted with conductive silver paste in carbon fiber cloth top electrode face
Line, then access are covered the wireless data transmission communication equipment of vector analysis instrument, analog-digital converter and demodulator, are realized without line number
According to communications；Waterproof finishing coat and marker layer are coated successively in nano modification thermoelectricity screed surrounding later, jointly
Form dense package layer.
In conjunction with thermostatic water bath temperature difference system, by CNT/MnO2Modified thermoelectricity mortar is connected into electrothermal module, and will be final
Positive and negative anodes are separately connected the reinforcing work electrode and titanium net anode of the liquid of concrete erosion containing 3.5%NaCl using aviation plug, use
Electrochemical workstation test and calculate depolarising current potential pad value, polarization resistance stationary value, corrosion electric current density be respectively
512mV、159.8kΩ·cm、0.63μA/cm2；Based on the CNT/MnO2Modified electrothermal module thermo-electric generation system can cause reinforcing bar
Current potential generates that larger negative shifting, polarization resistance are larger, and corrosion current is relatively low, shows that reinforcing bar cathode can be played good guarantor
Protect effect.
Under hydraulic servo experimental machine, the distributed monitoring node connected using aviation plug, and combine art technology
Noise signal occluding technique known to personnel obtains the CNT/MnO2Modified thermoelectricity mortar sensing layer meets cyclic load in structure frequency
In range under the 10kHz frequencies of (0-30MPa) sensing layer AC impedance, ac capacitor change rate be respectively 35.3%,
17.6%, corresponding sensing layer is respectively 2.71%, 3.08% to the stress/strain perception linearity；It obviously can be by sensing layer certainly
Its electrical parameter is mutated and realizes online awareness and early warning when body deterioration cracking.
Embodiment 2
The preparation process and structure of the nano modification thermoelectricity mortar with embodiment 1, unlike：
Nanometer conductance used, thermoelectricity component are CNF, nanometer Bi respectively2Te3；Concrete superplastizer used is naphthalene system
Sulfonates FDN；The cement is sulphate aluminium cement；The mineral admixture is S105 grades of super finely ground slags, and volume is cement
The 8% of dosage；It is to prepare molding using compaction process (pressure 15MPa, pressurize 15-90min) that relevant nanometer, which is modified thermoelectricity mortar,
And it conserves to 7d ages.
With the characterization CNF hybrids such as Crystal by Solution Conductivity Measurement Bi2Te3CNF, Bi in dispersion liquid2Te3It is evenly dispersed and stable
State, it is respectively 105.20S/cm, 1.28S/cm to disperse front and back electrical conductivity of solution；CNF/ is surveyed with glue sand coagulation time tester
Bi2Te3Initial, the termination setting time of modified thermoelectricity mortar slurry are respectively 100min, 320min, show CNF, Bi2Te3's
Introducing influences less silicate expanding cement base mortar slurry setting time.CNF/Bi is tested with universal material experimental machine2Te3
It is modified the anti-foldings of thermoelectricity mortar hardening test block 7d, compression strength is respectively 6.38MPa, 50.7MPa；It is surveyed with Thelma Hopkins compression bar method
Strain rate, compressive strength are respectively 200s-1, compressive strength 218.3MPa.
Use Seebeck coefficient tester respectively or combine thermostatic water bath and thermocouple self- made tester, thermal conductivity measuring apparatus,
CNF/Bi of the LCR digital electric bridges connection after maintenance, drying, heat-insulation and heat-preservation encapsulation2Te3Modified thermoelectricity mortar it is netted to electrode,
It tests in parallel electric under AC impedance, 10kHz frequencies under its Seebeck coefficient, thermal coefficient, dc resistivity, 10kHz frequencies
Capacitance is respectively 893.1mV/K, 0.394W/ (mK), 630.8k Ω cm, 11.01k Ω, 132.5nF.
A kind of thermoelectric structure with intelligent cathode protect with deteriorate it is as follows from the preparation process of monitoring system：
When needing to carry out thermoelectric structure cathodic protection and protective layer damage from when monitoring, placed in advance on thermoelectric structure surface layer
The netted bottom stainless steel hearth electrode of 40-180 mesh, thickness 2-5mm pours the above-mentioned CNF/Bi stirred evenly of 5-10mm thickness2Te3It is modified
Thermoelectricity mortar slurry, is pressed into the braiding afflux net type titanium net positive electrode of 40-200 mesh, thickness 1-2mm, then pours 15-50mm thickness
CNF/Bi2Te3Modified thermoelectricity mortar slurry, compaction moulding；To local jog position cement well-known to those skilled in the art
Based penetrant crystalline material layer carries out repairing floating, and the PAN base carbon fibers that thickness is 0.111mm or 0.167mm are re-layed before final set
Tie up cloth top electrode；It is further comprising the steps of after compaction moulding：Plastic covering film, and placement 7 is small in room temperature, sealed environment
When after demould, and it is curing to 7d ages.
For the nano modification thermoelectricity screed as electrothermal module power supply, it is directly connected to thermoelectric structure bar-mat reinforcement, titanium net
Anode and carbon cloth top electrode, the thermoelectricity such as Seebeck coefficient, electromotive force parameter height evaluates its temperature under integrated structure internal-external temperature difference
Poor generating efficiency, and structure reinforcing bars corrosion is assessed from immune operation mechanism and operational efficiency by electrochemical workstation.
For needing regional area, the nano modification thermoelectricity screed for developing its power fax sense effect is needed, is inserted with aviation
Head is respectively connected to the netted hearth electrode of nano modification thermoelectricity screed and carbon cloth top electrode to cover microprocessor, bus connects
The distributed monitoring node of mouth, communication interface, data acquisition board passes through screed electric parameters under different force/strain
Changing rule evaluates its sensitivity and stability；And antenna substrate and plane day are pasted with conductive silver paste in carbon fiber cloth top electrode face
Line, then access are covered the wireless data transmission communication equipment of vector analysis instrument, analog-digital converter and demodulator, are realized without line number
According to communications；Waterproof layer and marker layer, common shape are coated successively in nano modification thermoelectricity screed surrounding later
At dense package layer.
In conjunction with thermostatic water bath temperature difference system, by CNF/Bi2Te3Modified thermoelectricity mortar is connected into electrothermal module, and will be final
Positive and negative anodes are separately connected the reinforcing work electrode and titanium net anode of the liquid of concrete erosion containing 3.5%NaCl using aviation plug, use
Electrochemical workstation test and calculate depolarising current potential pad value, polarization resistance stationary value, corrosion electric current density be respectively
497mV、217.8kΩ·cm、0.82μA/cm2；Based on the CNF/Bi2Te3Modified electrothermal module thermo-electric generation system can cause steel
Muscle current potential generates that larger negative shifting, polarization resistance are larger, and corrosion current is relatively low, shows to play reinforcing bar cathode preferably
Protecting effect.
Under hydraulic servo experimental machine, the distributed monitoring node connected using aviation plug, and combine art technology
Noise signal occluding technique known to personnel obtains the CNF/Bi2Te3Modified thermoelectricity mortar sensing layer meets cycle lotus in structure frequency
Carry in range AC impedance, ac capacitor change rate under the 10kHz frequencies of (0-30MPa) sensing layer be respectively 27.6%,
12.5%, corresponding sensing layer is respectively 3.64%, 4.19% to the stress/strain perception linearity；Show that sensing layer can be passed through
Its electrical parameter is mutated and realizes online awareness and early warning when itself deterioration cracking.
Embodiment 3
The preparation process and structure of the nano modification thermoelectricity mortar with embodiment 1, unlike：
Used is graphene conductive slurry, and thermoelectricity group used is divided into a nanometer Cu2O, the mineral admixture are cohesion
State silicon ash, volume are the 5% of cement consumption.
With the characterization graphene hybrid such as Crystal by Solution Conductivity Measurement Cu2Graphene, Cu in O dispersion liquids2O it is evenly dispersed with it is steady
Determine state, it is respectively 82.63S/cm, 0.925S/cm to disperse front and back electrical conductivity of solution；Stone is surveyed with glue sand coagulation time tester
Black alkene mixes Cu2O be modified thermoelectricity mortar slurry it is initial, terminate setting time be respectively 70min, 240min, show graphene,
Cu2The introducing of O extends mortar coagulation time, but influences little.Mix Cu with universal material experimental machine test graphene2O is modified
The anti-foldings of thermoelectricity mortar hardening test block 7d, compression strength are respectively 8.27MPa, 61.3MPa；Its strain is surveyed with Thelma Hopkins compression bar method
Rate, compressive strength are respectively 200s-1, compressive strength 278.6MPa.
Use Seebeck coefficient tester respectively or combine thermostatic water bath and thermocouple self- made tester, thermal conductivity measuring apparatus,
Graphene hybrid Cu of the LCR digital electric bridges connection after maintenance, drying, heat-insulation and heat-preservation encapsulation2O is modified the net of thermoelectricity mortar
Shape tests AC impedance under its Seebeck coefficient, thermal coefficient, dc resistivity, 10kHz frequencies, 10kHz frequencies to electrode
Parallel capacitance of value is respectively 1142.5mV/K, 0.379W/ (mK), 420.6k Ω cm, 7.58k Ω, 142.0nF under rate.
A kind of thermoelectric structure with intelligent cathode protect with deteriorate it is as follows from the preparation process of monitoring system：
When needing to carry out thermoelectric structure cathodic protection and protective layer damage from when monitoring, placed in advance on thermoelectric structure surface layer
The netted bottom stainless steel hearth electrode of 40-180 mesh, thickness 2-5mm pours the above-mentioned graphene hybrid stirred evenly of 5-10mm thickness
Cu2O is modified thermoelectricity mortar slurry, is pressed into the braiding afflux net type titanium net positive electrode of 40-200 mesh, thickness 1-2mm, then pours 15-
The graphene hybrid Cu of 50mm thickness2O is modified thermoelectricity mortar slurry, compaction moulding；To local jog position this field skill
Cement-base infiltration crystallization material layer known to art personnel carries out repairing floating, re-layed before final set thickness be 0.111 or
The PAN base carbon fibre cloth top electrodes of 0.167mm；It is further comprising the steps of after compaction moulding：Plastic covering film, and in room
It is demoulded after being placed 7 hours in temperature, sealed environment, and curing to 7d ages.
For the nano modification thermoelectricity screed as electrothermal module power supply, it is directly connected to thermoelectric structure bar-mat reinforcement, titanium net
Anode and carbon cloth top electrode, the thermoelectricity such as Seebeck coefficient, electromotive force parameter height evaluates its temperature under integrated structure internal-external temperature difference
Poor generating efficiency, and structure reinforcing bars corrosion is assessed from immune operation mechanism and operational efficiency by electrochemical workstation.
For needing regional area, the nano modification thermoelectricity screed for developing its power fax sense effect is needed, is inserted with aviation
Head is respectively connected to the netted hearth electrode of nano modification thermoelectricity screed and carbon cloth top electrode to cover microprocessor, bus connects
The distributed monitoring node of mouth, communication interface, data acquisition board passes through screed electric parameters under different force/strain
Changing rule evaluates its sensitivity and stability；And antenna substrate and plane day are pasted with conductive silver paste in carbon fiber cloth top electrode face
Line, then access are covered the wireless data transmission communication equipment of vector analysis instrument, analog-digital converter and demodulator, are realized without line number
According to communications；Waterproof layer and marker layer, common shape are coated successively in nano modification thermoelectricity screed surrounding later
At dense package layer.
In conjunction with thermostatic water bath temperature difference system, by graphene hybrid Cu2O is modified thermoelectricity mortar and is connected into electrothermal module,
And final positive and negative anodes are separately connected to the reinforcing work electrode and titanium of the liquid of concrete erosion containing 3.5%NaCl using aviation plug
Pad value, polarization resistance stationary value, the corrosion electric current density of depolarising current potential are tested with electrochemical workstation and calculated to net anode
Respectively 381mV, 165.3k Ω cm, 0.48 μ A/cm2；Based on graphene hybrid Cu2O is modified electrothermal module temperature difference hair
Electric system reinforcing bar current potential can be caused to generate larger negative shifting, polarization resistance are larger, and corrosion current is relatively low, showing can be to reinforcing bar the moon
Play preferable protecting effect in pole.
Under hydraulic servo experimental machine, the distributed monitoring node connected using aviation plug, and combine art technology
Noise signal occluding technique known to personnel obtains graphene hybrid Cu2O is modified thermoelectricity mortar sensing layer in structure frequency
AC impedance, ac capacitor change rate are respectively under the 10kHz frequencies of (0-30MPa) sensing layer within the scope of chance cyclic load
34.6%, 23.2%, corresponding sensing layer is respectively 2.52%, 3.45% to the stress/strain perception linearity；Show that biography can be passed through
Its electrical parameter is mutated and realizes online awareness and early warning when sense layer itself deterioration cracking.
Claims (10)
1. a kind of nano modification thermoelectricity mortar, which is characterized in that include each component with following mass fraction：
0.00005~0.05 part of CNT pulvis, directly contains 0.00005~0.05 part of CNT at 0.00005~0.05 part of CNF pulvis
CNT aqueous slurries, the GO dispersion liquids directly containing 0.00001~0.005 part of GO, directly contain 0.00001~0.005 part of stone
One kind in the graphene conductive slurry of black alkene, 0.005~0.1 part of nanometer MnO2, 0.005~0.1 part of nanometer Cu2O, 0.005~
0.1 part of nano-ZnO, 0.005~0.1 part of nanometer Bi2Te3, 0.005~0.1 part of nano Co Sb3In one kind, 0.005~0.05
Part Concrete superplastizer, 0.25~0.5 part of water, 1 part of cement, 0~0.15 part of mineral admixture, 1.5~3 parts of mountain sand.
2. nano modification thermoelectricity mortar according to claim 1, which is characterized in that the CNT pulvis is single wall CNT or more
Wall CNT, a diameter of 1-60nm, length is 2-50 μm；A diameter of 200-600nm of CNF pulvis, length are 5-50 μm；CNT is aqueous
Slurry is the electrocondution slurry of concentration 5-10wt.%；A concentration of 1-10mg/mL of GO dispersion liquids, oxygen content 20%, piece diameter are 1-
500nm, lamella are 1-10 layers；The waterborne conductive slurry that graphene conductive slurry is concentration 2-5wt.%, piece diameter is 1-5 μm.
3. nano modification thermoelectricity mortar according to claim 1, which is characterized in that the nanometer MnO2For using hydro-thermal, water
The MnO that average grain diameter prepared by heat-gel or chemical deposition synthesis technology is 1-100nm2Pulvis or corresponding aqueous suspension；It receives
Rice Cu2O is to use the average grain diameter of hydro-thermal method, chemical reduction method or the preparation of Syntheses in water technique for the Cu of 1-100nm2O pulvis
Or corresponding aqueous suspension；Nano-ZnO is to close the flat of technique preparation using hydro-thermal, hydro-thermal-gel, emulsification pretreatment or high-energy ball milling
Equal grain size is the ZnO pulvis of 1-100nm or corresponding aqueous suspension；Nanometer Bi2Te3For using microwave liquid phase heating or coprecipitated
Average grain diameter prepared by shallow lake method is the nanometer Bi of 10-100nm2Te3Pulvis or corresponding aqueous suspension；Nano Co Sb3For using high
The nano Co Sb that average grain diameter prepared by energy ball-milling method combination discharge plasma sintering method is 60-100nm3Pulvis is corresponding aqueous
Suspension.
4. nano modification thermoelectricity mortar according to claim 1, which is characterized in that the Concrete superplastizer is poly- carboxylic
One or more of acids, naphthalene sulfonic salt, sulfamic acid salt, melamine resin class, aliphatic category high efficiency water reducing agent；Institute
It is one kind in ordinary tap water, distilled water, deionized water to state water.
5. nano modification thermoelectricity mortar according to claim 4, which is characterized in that when raw material is CNT pulvis or CNF pulvis
When, Concrete superplastizer is synchronized and is used as CNT or CNF aqueous dispersions.
6. nano modification thermoelectricity mortar according to claim 1, which is characterized in that the cement is high belite sulphur aluminic acid
Salt cement or sulphate aluminium cement；The mineral admixture is one kind in flyash, super finely ground slag, silica flour；The mountain sand is
Crush mountain sand made of granite, maximum particle diameter, minimum grain size are respectively 2.36cm, 0.15cm, fineness modulus 1.5-2.2 it
Between.
7. a kind of preparation method of nano modification thermoelectricity mortar as claimed in any one of claims 1 to 6, which is characterized in that including
Following steps：
The first step：Prepare nano material dispersion liquid：CNT pulvis or CNF pulvis are added dissolved in the water of Concrete superplastizer,
And ultrasonic disperse processing is carried out, then add a nanometer MnO2, nanometer Cu2O, nano-ZnO, nanometer Bi2Te3Or nano Co Sb3, after
Continuous to carry out ultrasonic disperse processing, centrifugation again later obtains CNT hybrids MnO2, nanometer Cu2O, nano-ZnO, nanometer
Bi2Te3Or nano Co Sb3Nano material dispersion liquid or CNF hybrids MnO2, nanometer Cu2O, nano-ZnO, nanometer Bi2Te3
Or nano Co Sb3Nano material dispersion liquid；Or directly by GO dispersion liquids, CNT aqueous slurries or graphene conductive slurry press than
Example is added dissolved in the water of Concrete superplastizer, then adds a nanometer MnO2, nanometer Cu2O, nano-ZnO, nanometer Bi2Te3
Or nano Co Sb3, and certain ultrasonic disperse energy is inputted, using centrifugation, form GO hybrids MnO2, nanometer
Cu2O, nano-ZnO, nanometer Bi2Te3Or nano Co Sb3Nano material dispersion liquid or CNT hybrids MnO2, nanometer Cu2O、
Nano-ZnO, nanometer Bi2Te3Or nano Co Sb3Nano material dispersion liquid or graphene hybrid MnO2, nanometer Cu2O, it receives
Rice ZnO, nanometer Bi2Te3Or nano Co Sb3Nano material dispersion liquid, it is spare；
Second step：By cement, mineral admixture, mountain sand and according to water-cement ratio determine remaining water sequentially add in agitated kettle, stir
Mix mixing；
Third walks：Nano material dispersion liquid is added, is mixed into the mortar that second step is prepared, then stirs evenly.
8. a kind of thermoelectric structure intelligent cathode prepared using nano modification thermoelectricity mortar described in claim 1-6 any one
Protect the preparation method from monitoring system with deterioration, which is characterized in that include the following steps：
Netted hearth electrode is placed on thermoelectric structure surface layer in advance, pours nano modification thermoelectricity mortar slurry, is pressed into titanium net positive electrode,
Nano modification thermoelectricity mortar slurry, cast or compaction moulding are poured again；Local jog position cement-base infiltration crystallization material is repaiied
It mends and smoothes out, carbon cloth top electrode is re-layed before final set；Plastic covering film, and place 3-24 in room temperature, sealed environment
Hour, it is curing.
9. preparation method according to claim 8, which is characterized in that further include following steps：
For the nano modification thermoelectricity screed as electrothermal module power supply, it is directly connected to thermoelectric structure bar-mat reinforcement, titanium net anode
And carbon cloth top electrode, Seebeck coefficient, electromotive force height are evaluated its thermo-electric generation efficiency, and are led under integrated structure internal-external temperature difference
Electrochemical workstation is crossed to assess structure reinforcing bars corrosion from immune operation mechanism and operational efficiency；
For needing regional area to develop the nano modification thermoelectricity screed of its power fax sense effect, nanometer is changed with aviation plug
The netted hearth electrode and carbon cloth top electrode of property thermoelectricity screed are respectively connected to cover microprocessor, bus interface, communication connect
The distributed monitoring node of mouth, data acquisition board passes through different force or the lower screed electric parameters changing rule of strain
Evaluate its sensitivity and stability；And antenna substrate and flat plane antenna are pasted with conductive silver paste in carbon fiber cloth top electrode face, then
The wireless data transmission communication equipment of vector analysis instrument, analog-digital converter and demodulator is covered in access, realizes the logical of wireless data
Letter transmission；Waterproof finishing coat and marker layer are coated successively in nano modification thermoelectricity screed surrounding later, are collectively formed close
Real encapsulated layer.
10. a kind of thermoelectric structure prepared using claim 8-9 any one the methods is protected and is deteriorated with intelligent cathode
From monitoring system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810592553.9A CN108675731A (en) | 2018-06-11 | 2018-06-11 | Nano modification thermoelectricity mortar is protected with intelligent cathode with preparation method and thermoelectric structure and is deteriorated from monitoring system and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810592553.9A CN108675731A (en) | 2018-06-11 | 2018-06-11 | Nano modification thermoelectricity mortar is protected with intelligent cathode with preparation method and thermoelectric structure and is deteriorated from monitoring system and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108675731A true CN108675731A (en) | 2018-10-19 |
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| CN113186534A (en) * | 2021-04-30 | 2021-07-30 | 山西银光华盛镁业股份有限公司 | Rapid determination method for current efficiency of Mg-Mn sacrificial anode material |
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