CN108098986A - A kind of prestressing force conductive concrete structures and preparation method thereof - Google Patents
A kind of prestressing force conductive concrete structures and preparation method thereof Download PDFInfo
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- CN108098986A CN108098986A CN201810101029.7A CN201810101029A CN108098986A CN 108098986 A CN108098986 A CN 108098986A CN 201810101029 A CN201810101029 A CN 201810101029A CN 108098986 A CN108098986 A CN 108098986A
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- presstressed reinforcing
- prestressing force
- concrete
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- concrete structures
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- 238000002360 preparation method Methods 0.000 title description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 50
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 47
- 239000010959 steel Substances 0.000 claims abstract description 47
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 239000010439 graphite Substances 0.000 claims abstract description 7
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 28
- 239000010935 stainless steel Substances 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 238000004873 anchoring Methods 0.000 claims description 5
- 239000002518 antifoaming agent Substances 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 5
- 239000002270 dispersing agent Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 238000007580 dry-mixing Methods 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 abstract description 11
- 238000007906 compression Methods 0.000 abstract description 11
- 238000010438 heat treatment Methods 0.000 abstract description 11
- 238000010276 construction Methods 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 150000001261 hydroxy acids Chemical class 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000005413 snowmelt Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
- B28B1/0873—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould the mould being placed on vibrating or jolting supports, e.g. moulding tables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
- B28B1/523—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement containing metal fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/0056—Means for inserting the elements into the mould or supporting them in the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
- B28B23/043—Wire anchoring or tensioning means for the reinforcements
-
- 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
- C04B28/04—Portland cements
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
- E01C11/26—Permanently installed heating or blowing devices ; Mounting thereof
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention discloses a kind of prestressing force conductive concrete structures, including conducting concrete body and two presstressed reinforcing steels；Two presstressed reinforcing steels extend through the opposite sides for the inside for being arranged in the conducting concrete body, and the both ends of each presstressed reinforcing steel are anchored at each via anchorage on the conducting concrete body, and two presstressed reinforcing steels are parallel to each other.Prestressing force conductive concrete structures provided in an embodiment of the present invention can effectively improve the compression strength of conducting concrete, while conducting concrete heating efficiency is ensured, avoid electrode and fallen off with concrete and separate.The present invention also provides a kind of production methods of prestressing force conductive concrete structures, and the making and construction to the big plate of steel fibre electrically conductive graphite concrete can be completed in Practical Project construction.
Description
Technical field
The present invention relates to technical field of concrete, more particularly, to a kind of prestressing force conductive concrete structures and its making side
Method.
Background technology
Icy road not only brings larger impact to the trip of the people, frequently results in highway road closure, the airport grounding, and
It constitutes a threat to traffic safety, therefore, how ice-melt snow removing has important practical significance for research.Although the method for ice-melt snow removing
Have it is very much, but it is most of have the drawbacks of serious, for example, what chemical thawing method generally used is all the chemistry containing NaCl
Agent can not only cause the corrosion of reinforcing bar, make the durability of pavement structure reduce, but also can destroy vegetation, pollute environment；Machine
The snow removing machinery of tool null method has the time of more than half and is in idle state, causes the waste of resource.
In the prior art, conducting concrete does not pollute environment and is had wide due to its snow melt deicing efficiency height
Development prospect.Generally using electrically conductive graphite concrete in engineering, still, due to being added in the conductive phase of conducting concrete
Graphite, will certainly cause the compression strength of conducting concrete to decline, although steel fibre is added in conducting concrete can make it
Compression strength increases, but with the extension of time, steel fibre can be passivated, so as to reduce the resistance of conducting concrete
Rate.In addition, the electrode generally use stainless steel plate with holes that conducting concrete uses, but stainless steel plate easily occurs with concrete
Come off separation, and being not particularly suited for bridge floor, airfield runway etc. so as to cause conducting concrete needs the construction work of strong concrete
Journey.
The content of the invention
An embodiment of the present invention provides a kind of prestressing force conductive concrete structures and preparation method thereof, to solve existing lead
Electric concrete crushing strength is undesirable, and electrode easily falls off the technical issues of separating with concrete, so as to effectively
The compression strength of conducting concrete is improved, while ensureing conducting concrete heating efficiency, electrode is avoided to occur with concrete de-
Fall separation.
In order to solve the above-mentioned technical problem, an embodiment of the present invention provides a kind of prestressing force conductive concrete structures, including
Conducting concrete body and two presstressed reinforcing steels；Two presstressed reinforcing steels, which extend through, is arranged in the conducting concrete body
Inside opposite sides, the both ends of each presstressed reinforcing steel are anchored at the conducting concrete body each via anchorage
On, and two presstressed reinforcing steels are parallel to each other.
Preferably, the prestressing force conductive concrete structures further include external power supply and two electric wires；
One end of one electric wire is electrically connected with the cathode of the external power supply, the other end connection of an electric wire
For anchoring the anchorage of one of them described presstressed reinforcing steel one end, and the other end of an electric wire and one of institute
State presstressed reinforcing steel electrical connection；
One end of another electric wire is electrically connected with the cathode of the external power supply, the other end of another electric wire
Be connected to anchor the anchorage of presstressed reinforcing steel one end described in other in which, and the other end of another electric wire and its
In another described presstressed reinforcing steel electrical connection.
Preferably, the anchorage includes work anchor ring, anchor plate, bellows and supplies the presstressed reinforcing steel and institute
State the anchor hole that electric wire passes through；
One end of the work anchor ring is connected on one end of the anchor plate, and one end of the bellows is connected to described
On the other end of anchor plate；
The excircle of the anchor plate is equipped with spiral bar, and the anchor hole is through the work anchor ring, the anchor plate, institute
The front/rear end of bellows is stated, the other end of the work anchor ring is equipped with to clamp the presstressed reinforcing steel and the electric wire simultaneously
Carry out the intermediate plate of tensioning.
Preferably, the presstressed reinforcing steel is made of an at least steel strand wires.
Preferably, the material of the steel strand wires is stainless steel material.
Preferably, two presstressed reinforcing steels are located in same level.
In order to solve the technical issues of identical, the present invention also provides a kind of making sides of prestressing force conductive concrete structures
Method comprises the following steps：
1) before casting concrete, in template two presstressed reinforcing steels are carried out with tensioning, while by electric wire
One end is anchored on the anchorage of one of them described presstressed reinforcing steel one end, one end of another electric wire is anchored at other in which institute
On the anchorage for stating presstressed reinforcing steel one end；
2) graphite is blended in cement, obtains material a；
3) mixed and stirred with after steel fibre dry mixing, adding in the material a will gather materials, obtain material b；
4) 40 DEG C -60 DEG C of water, water-reducing agent, dispersant, stirring, add in antifoaming agent, to disappear into water after agitation
Except the bubble introduced in whipping process, so as to obtain material c；
5) the material b and material c is stirred, obtains concrete and concrete is injected into template, by shaking
Dynamic platform vibrates shaping；
6) after concrete formation, form removal after 30h-48h is conserved, so as to complete the system of prestressing force conductive concrete structures
Make.
Preferably, the mixing time of the step 3) is no less than 1min.
Preferably, the antifoaming agent of the step 4) use concentration for 0.015% tributyl phosphate.
Preferably, the mixing time of the step 6) is 90s.
Compared with the prior art, the advantageous effect of the embodiment of the present invention is, by the way that the presstressed reinforcing steel is arranged in institute
The inside of conducting concrete body is stated, can effectively increase the compression strength of the conducting concrete body and integrally-built
Reliability；And two presstressed reinforcing steels can be as two electrodes of the conducting concrete body, and extend through and be arranged in
The opposite sides of the inside of the conducting concrete body, it is described to lead when two presstressed reinforcing steels and external power supply connection
Electric concrete body heating power, so as to fulfill the prestressing force conductive concrete structures conductive exothermal ice-melt snow removing function,
And then meet the requirement of conducting concrete conductive exothermal；Middle stainless steel plate but easily occurs de- as electrode compared with the prior art
Fall separation, the presstressed reinforcing steel is embedded in the conducting concrete body, can be come into full contact with concrete, so as to avoid
Electrode, which is fallen off with concrete, to be separated；In addition, the presstressed reinforcing steel, which can be the conducting concrete body, applies pre- answer
Power, so as to significantly reduce the crack generated due to conducting concrete uneven heating.In this way, in the conducting concrete
The inside of body configures two presstressed reinforcing steels as electrode, can effectively improve the compression strength of conducting concrete,
While ensureing conducting concrete heating efficiency, effectively prevent electrode and fall off with concrete to separate.The present invention also provides
A kind of production method of prestressing force conductive concrete structures.
Description of the drawings
Fig. 1 is the structure diagram of the prestressing force conductive concrete structures in the embodiment of the present invention；
Fig. 2 is the structure diagram of the presstressed reinforcing steel in the embodiment of the present invention；
Fig. 3 is the structure diagram of the anchorage in the embodiment of the present invention；
Wherein, 1, conducting concrete body；2nd, presstressed reinforcing steel；3rd, anchorage；31st, anchor plate；311st, spiral bar；32nd, work
Anchor ring；321st, intermediate plate；33rd, bellows；4th, electric wire.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment belongs to the scope of protection of the invention.
Referring to Fig. 1, the preferred embodiment of the present invention provides a kind of prestressing force conductive concrete structures, including conducting concrete sheet
Body 1 and two presstressed reinforcing steels 2；Two presstressed reinforcing steels 2 extend through the inside that is arranged in the conducting concrete body 1
Opposite sides, the both ends of each presstressed reinforcing steel 2 are anchored at each via anchorage 3 on the conducting concrete body 1, and two
A presstressed reinforcing steel 2 is parallel to each other.
In embodiments of the present invention, by the way that the presstressed reinforcing steel 2 to be arranged in the inside of the conducting concrete body 1,
The compression strength of the conducting concrete body 1 and integrally-built reliability can effectively be increased；And two it is described it is pre- should
Power muscle 2 can be as two electrodes of the conducting concrete body 1, and extend through and be arranged in the conducting concrete body 1
Inside opposite sides, when two presstressed reinforcing steels 2 and external power supply are connected, the conducting concrete body 1 is powered
Fever so as to fulfill the function that the prestressing force conductive concrete structures conductive exothermal is removed the snow with ice-melt, and then meets conductive mixed
The requirement of solidifying soil conductive exothermal；Middle stainless steel plate but easily falls off separation as electrode compared with the prior art, described pre-
Stress rib 2 is embedded in the conducting concrete body 1, can be come into full contact with concrete, so as to avoid electrode with mixing
Solidifying soil falls off separation；In addition, the presstressed reinforcing steel 2, which can be the conducting concrete body 1, applies prestressing force, so as to big
Reduce to amplitude the crack generated due to conducting concrete uneven heating.In this way, in the conducting concrete body 1
Portion configures two presstressed reinforcing steels 2 as electrode, can effectively improve the compression strength of conducting concrete, ensure conduction
While concrete heating efficiency, effectively prevent electrode and fall off with concrete to separate.
In embodiments of the present invention, in order to make structure rationalization, the prestressing force conductive concrete structures further include external
Power supply and two electric wires 4；
One end of one electric wire 4 is electrically connected with the cathode of the external power supply, and the other end of an electric wire 4 connects
Be connected on to anchor the anchorage 3 of one of them described 2 one end of presstressed reinforcing steel, and the other end of an electric wire 4 with wherein
One presstressed reinforcing steel 2 is electrically connected；
One end of another electric wire 4 is electrically connected with the cathode of the external power supply, another electric wire 4 it is another
End is connected to anchor the anchorage 3 of 2 one end of presstressed reinforcing steel described in other in which, and another electric wire 4 is another
End is electrically connected with presstressed reinforcing steel described in other in which 2.
Referring to Fig. 1 and Fig. 3, in embodiments of the present invention, the anchorage 3 includes work anchor ring 32, anchor plate 31, bellows
33 and the anchor hole that is passed through for the presstressed reinforcing steel 2 and the electric wire 4；One end of the work anchor ring 32 is connected to the anchor pad
On one end of plate 31, one end of the bellows 33 is connected on the other end of the anchor plate 31；Outside the anchor plate 31
Circumference is equipped with spiral bar 311, and the anchor hole is before the work anchor ring 32, the anchor plate 31, the bellows 33
Rear end face, the other end of the work anchor ring 32 are equipped with to clamp the presstressed reinforcing steel 2 and the electric wire 4 and carry out tensioning
Intermediate plate 321.
In the present embodiment, it should be noted that the bellows 33 is used as pore-forming, in order to the lashing of steel strand wires, institute
The effect for stating spiral bar 311 is the compression strength of concrete after raising anchor, prevents that concrete is under the action of tension stress under anchor
Generation local failure；The anchor ring plays the role of anchoring, applies stress to the anchor plate 31；The intermediate plate 321 is in institute
It states in 1 manufacturing process of conducting concrete body, tensioning is carried out for clamping the presstressed reinforcing steel 2.
It should be understood that in the present embodiment, the both ends of each presstressed reinforcing steel 2 are anchored each via an anchorage 3
On the conducting concrete body 1, and junction of the anchorage 3 at 2 both ends of the presstressed reinforcing steel as electrode, described in anchoring
While presstressed reinforcing steel 2, the electric wire 4 is consolidated through the anchor hole together with the end of the presstressed reinforcing steel 2 by the intermediate plate 321
It is scheduled on together, so as to improve the reliability that electric wire 4 is connected with electrode, is effectively prevented electric wire 4 and comes off from electrode, and then subtract
The small possibility separated with electrode delamination of electric wire 4.
Referring to Fig. 1 and Fig. 2, in embodiments of the present invention, the presstressed reinforcing steel 2 is made of an at least steel strand wires.It compares
In the prior art stainless steel plate as electrode, the present embodiment forms the presstressed reinforcing steel 2 using an at least steel strand wires so that
Electrode can come into full contact with concrete, fall off and separate with concrete so as to avoid electrode.
In embodiments of the present invention, in order to make structure rationalization, the material of the steel strand wires is stainless steel material.The steel
Twisted wire is stainless steel material, can prevent from being aoxidized during the prestressing force conductive concrete structures conductive heater, so as to
Improve the service life of the prestressing force conductive concrete structures.
In embodiments of the present invention, in order to make structure rationalization, the steel strand wires include but not limited to 2 steel strand wires, 3
Steel strand wires, 7 steel strand wires etc., the intensity of concrete according to needed for construction project makes choice.
Referring to Fig. 1, in embodiments of the present invention, in order to make structure rationalization, two presstressed reinforcing steels 2 are located at same water
In plane, generate heat so as to ensure the conducting concrete body 1 under the conduction of electrode uniformly, so as to which uneven heating be avoided to lead
The conducting concrete body 1 is caused to crack, and then improves the service life of the prestressing force conductive concrete structures.
In embodiments of the present invention, the prestressing force conductive concrete structures include it is following by weight it is following into
Point：
5.2 parts of steel fibre, 15 parts of graphite, 1.8 parts of steel wool, 0.9 part of silicon ash, 0.4 part of water-reducing agent, 0.2 part of dispersant；
The requirement of graphite powder carbon content is more than 98%, and grain size is in the range of 1-5mm；
The steel fibre is wave low-carbon steel fibre, length 38mm, a diameter of 0.8-1.0mm, and tensile strength is more than
650MPa；
The water-reducing agent be poly- hydroxy acid water-reducing agent, can diminishing more than 20%, volume be cement quality 1%-2%；
Fine aggregate in the concrete is middle sand, and coarse aggregate selects the broken stone, grain size 13mm or so of counterattack, and size is equal
It is even；
The cement of the concrete uses P.O.42.5 Portland cements；
The presstressed reinforcing steel 2 is made of at least one 2 steel strand wires.
In embodiments of the present invention, it is conductive the present invention also provides a kind of prestressing force in order to solve the technical issues of identical
The production method of concrete structure, comprises the following steps：
1) template is cleaned out, before casting concrete, prestressing force is passed through to two presstressed reinforcing steels 2 in template
Intelligent tensioning equipment carries out tensioning, while one end of an electric wire is anchored to the anchor of one of them described 2 one end of presstressed reinforcing steel
On tool 3, one end of another electric wire be anchored at described in other in which on the anchorage 3 of 2 one end of presstressed reinforcing steel, and by the institute of tensioning
2 anchoring temporarily of presstressed reinforcing steel is stated in pedestal, is placed on spare on one side；
2) graphite is blended in cement, obtains material a；
3) mixed and stirred with after steel fibre dry mixing, adding in the material a will gather materials, mixing time is no less than
1min obtains material b；
4) water, water-reducing agent, dispersant, stirring, the temperature of concrete mixing water are controlled at 40 DEG C -60 DEG C, because
This is the optimal preference temperature that dispersant is dissolved in water；The tributyl phosphate that concentration is 0.015% is added in after stirring in water
As antifoaming agent, to eliminate the bubble introduced in whipping process, so as to obtain material c；
5) by the material b and the material c mixs, and duration of mixing is strictly controlled, mixing time is advisable with 90s, is obtained
It is injected into concrete and by concrete in template, puts shaping of vibrating on a vibration table；
6) concrete slump after stirring is 30-50mm, after concrete formation, conserves form removal after 30h-48h, so as to
Complete the making of the prestressing force conductive concrete structures.
To sum up, the present invention provides a kind of prestressing force conductive concrete structures and preparation method thereof, and the embodiment of the present invention has
Beneficial effect is：
(1) by the way that the presstressed reinforcing steel 2 to be arranged in the inside of the conducting concrete body 1, can effectively increase
The compression strength and integrally-built reliability of the conducting concrete body 1；
(2) two presstressed reinforcing steels 2 can be as two electrodes of the conducting concrete body 1, and extend through cloth
The opposite sides of the inside of the conducting concrete body 1 is placed in, when two presstressed reinforcing steels 2 and external power supply connection,
1 heating power of conducting concrete body removes the snow so as to fulfill the prestressing force conductive concrete structures conductive exothermal ice-melt
Function, and then meet the requirement of conducting concrete conductive exothermal；In this way, the presstressed reinforcing steel 2 can not only meet its conduction hair
The requirement of heat, while can also meet it and apply to the requirement of strong concrete, so as to increase prestressing force conducting concrete knot
The application range of structure and integrally-built reliability；
(3) it is middle compared with the prior art that separation, the prestressing force are but easily fallen off as electrode using stainless steel plate
Muscle 2 is embedded in the conducting concrete body 1, can be come into full contact with concrete, so as to avoid electrode and concrete
Fall off separation；
(4) presstressed reinforcing steel 2 can be that the conducting concrete body 1 applies prestressing force, so as to significantly reduce
Due to the crack that conducting concrete uneven heating generates, and then avoid the conducting concrete body 1 uneven due to generating heat
And it cracks；
(5) together with the electric wire 4 is anchored with the presstressed reinforcing steel 2 by the anchorage 3, institute can effectively be increased
The reliability that electric wire 4 is connected with the presstressed reinforcing steel 2 is stated, so as to efficiently avoid electric wire and electrode delamination.
In this way, the present invention configures two presstressed reinforcing steels 2 in the inside of the conducting concrete body 1 is used as electrode,
The compression strength of conducting concrete can be effectively improved, while conducting concrete heating efficiency is ensured, is effectively prevented
Electrode falls off with concrete and separates, so that the prestressing force conductive concrete structures can be suitable for bridge floor, airport
Runway etc. needs the construction project of strong concrete.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of prestressing force conductive concrete structures, which is characterized in that including conducting concrete body and two presstressed reinforcing steels；Two
A presstressed reinforcing steel extends through the opposite sides for the inside for being arranged in the conducting concrete body, each prestressing force
The both ends of muscle are anchored at each via anchorage on the conducting concrete body, and two presstressed reinforcing steels are parallel to each other.
2. prestressing force conductive concrete structures as described in claim 1, which is characterized in that the prestressing force conducting concrete knot
Structure further includes external power supply and two electric wires；
One end of one electric wire is electrically connected with the cathode of the external power supply, and the other end of an electric wire is connected to use
In anchor one of them described presstressed reinforcing steel one end anchorage on, and the other end of an electric wire with it is pre- one of them described
Stress rib is electrically connected；
One end of another electric wire is electrically connected with the cathode of the external power supply, the other end connection of another electric wire
For anchoring the anchorage of presstressed reinforcing steel one end described in other in which, and the other end of another electric wire with it is wherein another
One presstressed reinforcing steel electrical connection.
3. prestressing force conductive concrete structures as claimed in claim 2, which is characterized in that the anchorage include work anchor ring,
Anchor plate, bellows and the anchor hole passed through for the presstressed reinforcing steel and the electric wire；
One end of the work anchor ring is connected on one end of the anchor plate, and one end of the bellows is connected to the anchor pad
On the other end of plate；
The excircle of the anchor plate is equipped with spiral bar, and the anchor hole is through the work anchor ring, the anchor plate, the ripple
The front/rear end of line pipe, the other end of the work anchor ring are equipped with to clamp the presstressed reinforcing steel and the electric wire and carry out
The intermediate plate of tensioning.
4. such as claims 1 to 3 any one of them prestressing force conductive concrete structures, which is characterized in that the presstressed reinforcing steel
It is made of an at least steel strand wires.
5. prestressing force conductive concrete structures as claimed in claim 4, which is characterized in that the material of the steel strand wires is stainless
Steel material.
6. prestressing force conductive concrete structures as described in claim 1, which is characterized in that two presstressed reinforcing steels are located at same
On one horizontal plane.
7. the production method of prestressing force conductive concrete structures as claimed in claim 2, which is characterized in that including following step
Suddenly：
1) before casting concrete, in template two presstressed reinforcing steels are carried out with tensioning, while by one end of an electric wire
It is anchored on the anchorage of one of them described presstressed reinforcing steel one end, one end of another electric wire is anchored at described in other in which in advance
On the anchorage of stress rib one end；
2) graphite is blended in cement, obtains material a；
3) mixed and stirred with after steel fibre dry mixing, adding in the material a will gather materials, obtain material b；
4) 40 DEG C -60 DEG C of water, water-reducing agent, dispersant, stirring, add in antifoaming agent into water after agitation, to eliminate
The bubble introduced in whipping process, so as to obtain material c；
5) the material b and material c is stirred, obtains concrete and concrete is injected into template, pass through shake table
It vibrates shaping；
6) after concrete formation, form removal after 30h-48h is conserved, so as to complete the making of prestressing force conductive concrete structures.
8. the production method of prestressing force conductive concrete structures as claimed in claim 7, which is characterized in that the step 3)
Mixing time is no less than 1min.
9. the production method of prestressing force conductive concrete structures as claimed in claim 7, which is characterized in that the step 4)
The antifoaming agent use concentration for 0.015% tributyl phosphate.
10. the production method of prestressing force conductive concrete structures as claimed in claim 7, which is characterized in that the step 5)
Mixing time be 90s.
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