CN110281367A - A kind of concrete curing device and method - Google Patents
A kind of concrete curing device and method Download PDFInfo
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- CN110281367A CN110281367A CN201910689354.4A CN201910689354A CN110281367A CN 110281367 A CN110281367 A CN 110281367A CN 201910689354 A CN201910689354 A CN 201910689354A CN 110281367 A CN110281367 A CN 110281367A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000001723 curing Methods 0.000 claims abstract description 56
- 238000012423 maintenance Methods 0.000 claims abstract description 24
- 238000011415 microwave curing Methods 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 claims description 36
- 229920003023 plastic Polymers 0.000 claims description 17
- 239000004033 plastic Substances 0.000 claims description 17
- 238000004140 cleaning Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 239000004570 mortar (masonry) Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 239000010721 machine oil Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 230000001680 brushing effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000010998 test method Methods 0.000 abstract description 11
- 238000013461 design Methods 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 9
- 230000033228 biological regulation Effects 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000012669 compression test Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 239000010409 thin film Substances 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
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
The invention discloses a kind of concrete curing device of concrete curing technical field and methods, including microwave body, the right side of microwave body is equipped with control cabinet, interior furnace is equipped on the left of the inner cavity of microwave body, lid door is hinged on the left of the front surface of microwave body, the outer of lid door and interior furnace overlaps, and the face center of lid door is embedded with observation window, is respectively equipped with power supply, switch, controller, resistive element, microwave generator, temperature detect switch (TDS) and radiator in control cabinet；The present invention passes through microwave curing test method, effectively accelerate maintenance speed, and a kind of new type test method of the design requirement of GB/T50080, GB/T14902, GB/T50081 can be reached, space is saved while working efficiency, the generation of building concrete quality accident is effectively reduced in save the cost.
Description
Technical field
The present invention relates to concrete curing technical fields, and in particular to a kind of concrete curing device and method.
Background technique
After concrete casting, such as hot climate is air-dried, and is conserved not in time, and moisture can evaporate in concrete
Fastly, dehydrating phenomena is formed, the cement granules for having formed gelinite can be prevented from abundant aquation, stable crystallization cannot be converted into,
Lack enough cohesive forces, to sheet can occur in concrete surface or powdery falls off.In addition, not yet having foot in concrete
When enough intensity, the premature evaporation of moisture can also generate biggish contraction distortion, cup shake occur.So after concreting
The maintenance of initial stage is extremely important, should be conserved immediately after concrete final set, after dry concrete Ying Yu is poured
It is conserved immediately.
Concrete curing is artificially to cause certain humidity and temperature condition, keep the concrete just poured normal or
Accelerate its hardening and gain in strength.Concrete is cement aquation as a result, and water so can gradually harden and increase intensity
The aquation of mud needs certain temperature and humidity condition.As ambient enviroment be not present the condition when, then need manually to concrete into
Row maintenance.Concrete curing method has at present: one, natural curing: point sprinkling maintenance and spraying plastic membrane curing.The former uses grass
Curtain etc. covers concrete, and often watering keeps wet.Curing time depends on cement type, such as ordinary portland cement coagulation
Soil no less than 7 is round the clock.The latter is suitable for being not easy towering structure and large area concrete structure of sprinkling maintenance etc., is that will cross chlorine
Vinyl plastic solution is sprayed at concrete surface with spray gun, forms thin film in concrete surface after solution evaporation, will
Concrete and air exclusion prevent moisture evaporation in concrete from guaranteeing that cement aquation is normally carried out, and rear film is completed in maintenance
It can voluntarily aging fall off.Two, steam curing: concrete component is placed on and mixes with air supporting for object full of saturated vapor or steam
Shield is indoor, accelerates concrete hardening in higher temperature and humidity environment.Maintenance effect is related with steam curing system, it is wrapped
It includes: time of repose, heating and cooling rate, curing temperature, thermostatic curing time, relative humidity etc. before steam curing.Steam is supported
There are pit, shaft kiln formula and tunnel-kiln type in shield room.But natural curing and steam curing curing strength are effective, low efficiency.It needs to lead to
It crosses setting microwave getting up early strength estimation test method and carries out concrete curing, accelerate curing strength.Based on this, the present invention is devised
A kind of concrete curing device and method, to solve the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of concrete curing device and methods, to solve to propose in above-mentioned background technique
The problem of.
To achieve the above object, the invention provides the following technical scheme: a kind of concrete curing device, including micro-wave oven sheet
Body, the right side of the microwave body are equipped with control cabinet, are equipped with interior furnace, the micro-wave oven on the left of the inner cavity of the microwave body
Lid door is hinged on the left of the front surface of ontology, the outer overlap joint of the lid door and interior furnace, the face center of the lid door is embedded with sight
Window is examined, power supply, switch, controller, resistive element, microwave generator, temperature detect switch (TDS) and heat dissipation are respectively equipped in the control cabinet
Device is in series with switch, controller, resistive element, microwave generator, temperature detect switch (TDS) between the positive and negative anodes of the power supply respectively and dissipates
The right side bottom center of hot device, the microwave body offers radiator window.
Preferably, the first relay switch is parallel on the controller, first relay switch requires power must not be low
In 1000w, electric current must not be lower than 5A.
Preferably, the second relay switch is parallel between the controller and resistive element, second relay switch is wanted
Ask power that must not must not be lower than 10A lower than 1500w, electric current.
Preferably, touch panel switch and microwave computer control module, the touch panel switch and microwave are parallel on the power supply
The series connection of computer control module.
Preferably, commercial power socket is electrically connected by attaching plug in the control cabinet.
A kind of concrete curing method, the specific steps are as follows:
The first step, mixed concrete；
Second step, die trial
It is after the uniform brushing a thin layer release agent of die trial inner wall or machine oil, concrete is uniform with standard mortar die trial
Die trial is poured into, and inserts concrete according to standard, surface modes are finally touched into flat pressing with spatula, one layer is covered in surface of test piece and supports
Film is protected, the curing membrane overlay film is placed on vibration gauge using the uniform mould class such as plastics curing film by bubble last in mould
It shakes out, it is noted that should not over vibration；
Third step, cleaning, cleaning die trial outside any excess concrete impurity；
4th step, microwave curing
STEP1 is isolated microwave instrument with die trial bottom by the microwave body internal dust wiped clean with oil-Absorbing Sheets
Open, will be put into mould test specimen in the microwave body, on the bottom plate of the interior furnace preparatory layer overlay can absorb water, oil maintenance
Paper；
STEP2, opens power supply, then the first precuring 2h in the interior furnace of test specimen carries out heat cycles, each is supported automatically
Shield circulation is work 30s, and quiet to stop 5min, net cycle time is preferably 5h；
STEP3, maintenance after circulation terminates, close power supply, band mould test specimen are taken out after 30min, then demoulding carries out resistance to compression examination
It tests；
STEP4 accelerates curing strength to take from power supply is closed to the time for carrying out compressive strength test no more than 50min
The arithmetic mean of instantaneous value of three test specimens should be established by test in advance when accelerating curing strength presumption standard curing 28d compression strength
The strength relationships of the two.
Preferably, the rated input power of the microwave body is preferably 1180W~1300W, and microwave output power is preferably
700W~800W, rated frequency should be 50Hz, and specified microwave frequency should be 2300MHz~2500MHz, plate maintenance.
Preferably, the die trial is preferably 100mm × 100mm × 100mm or 70.7mm × 70.7mm × 70.7mm plastics
Die trial when maximum size of coarse aggregate is greater than 25mm, preferably uses 100mm × 100mm × 100mm plastics die trial, and coarse aggregate is maximum
When partial size is not more than 25mm, three plastics die trial of 70.7mm × 70.7mm × 70.7mm can be used.
Compared with prior art, the beneficial effects of the present invention are: the present invention is effectively accelerated by microwave curing test method
Speed is conserved, and a kind of new test side of the design requirement of GB/T50080, GB/T14902, GB/T50081 can be reached
Method, saves space while working efficiency, and the generation of building concrete quality accident is effectively reduced in save the cost.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is schematic structural view of the invention.
Fig. 2 is schematic diagram of circuit connection structure of the present invention.
Fig. 3 is radiator schematic diagram of circuit connection structure of the present invention.
Fig. 4 is microwave computer control module attachment structure schematic diagram of the present invention.
In attached drawing, parts list represented by the reference numerals are as follows:
Microwave body 1, control cabinet 2, interior furnace 3, lid door 4, observation window 5, power supply 6, switch 7, controller 8, resistive element
9, microwave generator 10, temperature detect switch (TDS) 11, radiator 12, the first relay switch 13, the second relay switch 14, touch panel switch 15,
Microwave computer control module 16, radiator window 17.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-4 is please referred to, the present invention provides a kind of technical solution: a kind of concrete curing device, including microwave body
1, the right side of microwave body 1 is equipped with control cabinet 2, is equipped with interior furnace 3 on the left of the inner cavity of microwave body 1, before microwave body 1
Lid door 4, the outer overlap joint of lid door 4 and interior furnace 3 are hinged on the left of surface, the face center of lid door 4 is embedded with observation window 5, control cabinet 2
In be respectively equipped with power supply 6, switch 7, controller 8, resistive element 9, microwave generator 10, temperature detect switch (TDS) 11 and radiator 12, electricity
Switch 7, controller 8, resistive element 9, microwave generator 10, temperature detect switch (TDS) 11 are in series between the positive and negative anodes in source 6 respectively and is dissipated
The right side bottom center of hot device 12, microwave body 1 offers radiator window 17.
Wherein, the first relay switch 13 is parallel on controller 8, the first relay switch 13 requires power that must not be lower than
1000w, electric current must not be lower than 5A.
The second relay switch 14 is parallel between controller 8 and resistive element 9, the second relay switch 14 requires power must not
Lower than 1500w, electric current must not be lower than 10A.
Touch panel switch 15 and microwave computer control module 16, touch panel switch 15 and the control of microwave computer are parallel on power supply 6
Module 16 is connected.
Commercial power socket is electrically connected by attaching plug in control cabinet 2.
A kind of concrete curing method, which is characterized in that specific step is as follows:
The first step, mixed concrete；
Second step, die trial
It is after the uniform brushing a thin layer release agent of die trial inner wall or machine oil, concrete is uniform with standard mortar die trial
Die trial is poured into, and inserts concrete according to standard, surface modes are finally touched into flat pressing with spatula, one layer is covered in surface of test piece and supports
Film is protected, curing membrane overlay film is placed on vibration gauge and bubble last in mould is shaken out using the uniform mould class such as plastics curing film,
Please noting that should not over vibration；
Third step, cleaning, cleaning die trial outside any excess concrete impurity；
4th step, microwave curing
STEP1 keeps apart microwave instrument and die trial bottom 1 internal dust wiped clean of microwave body with oil-Absorbing Sheets,
To be put into mould test specimen in microwave body 1, on the bottom plate of interior furnace 3 preparatory layer overlay can absorb water, oil maintenance paper；
STEP2, opens power supply 6, then the first precuring 2h in interior furnace 3 of test specimen carries out heat cycles, each maintenance automatically
Circulation is work 30s, and quiet to stop 5min, net cycle time is preferably 5h；
STEP3, maintenance after circulation terminates, close power supply 6, band mould test specimen are taken out after 30min, then demoulding carries out resistance to compression
Test；
STEP4 accelerates curing strength to take from power supply is closed to the time for carrying out compressive strength test no more than 50min
The arithmetic mean of instantaneous value of three test specimens should be established by test in advance when accelerating curing strength presumption standard curing 28d compression strength
The strength relationships of the two.
The rated input power of microwave body 1 is preferably 1180W~1300W, and microwave output power is preferably 700W~800W,
Rated frequency should be 50Hz, and specified microwave frequency should be 2300MHz~2500MHz, plate maintenance.
Die trial is preferably 100mm × 100mm × 100mm or 70.7mm × 70.7mm × 70.7mm plastics die trial, coarse aggregate
When maximum particle diameter is greater than 25mm, 100mm × 100mm × 100mm plastics die trial is preferably used, maximum size of coarse aggregate is not more than
When 25mm, three plastics die trial of 70.7mm × 70.7mm × 70.7mm can be used.
One concrete application of the present embodiment are as follows:
By 6 partial cut of power supply of microwave body 1, one group of power supply line in parallel, and switch 7 of connecting arrives power supply 6, and
Join a microwave computer control module 16, the overall work start-stop of microwave body 1 is controlled by microwave computer control module 16, from
And the general power of microwave body 1 is reduced to 200-300w output, 1 group of first relay switch 13 of connecting, by microwave computer control
Molding block 16 controls micro-wave oven relay clock switch, and the first relay switch 13 requires power that must not be lower than 1000w.Electric current must not be low
In 5A, 1 group of second relay switch 14 of connecting controls controller 8 and resistive element 9, achievees the purpose that reduce general power output, the
Two relay switch 14 require power that must not must not be lower than 10A lower than 1500w, electric current, and microwave computer control module 16 is connected one
Data terminal mouth line is connected to touch panel switch 15, and touch panel switch 15 can modify the working procedure of microwave curing test method, to control
It makes prefabricated microwave computer control module 16 to work, different brackets concrete can be corresponded to by, which having reached, carries out different time
Maintenance, since the operating ambient temperature of microwave generator 10 is too high, it is necessary to connect one and be controlled by temperature detect switch (TDS) 11
Radiator 12, for electrical component carry out interruption constant temperature heat dissipation.
Preparation, a variety of materials of mixed concrete needs, tool.Material therefor is referring to GB/T50080 " common coagulation
Native mixture method for testing performance standard ", referring to GB/T14902 standard mix normal concrete.The pressure resistance of concrete sample
Degree test is preferably completed in 3d ± 1h or 7d ± 2h age, and " standard for test methods of mechanical properties of ordinary concrete " (GB/ is pressed in test
T50081 regulation) carries out.
Concrete sample is fitted into die trial, by existing national standards " standard for test methods of mechanical properties of ordinary concrete "
The regulation shaping test piece of GB/T50081.70.7*70.7*70.7*3 standard mortar die trial is just used in die trial, and the concrete mixed enters
One layer of release agent or machine oil are painted before mould, concrete are uniformly poured into die trial, and insert concrete according to standard, finally used
Spatula covers one layer of curing membrane by the flat pressing of surface modes, in surface of test piece, and curing membrane overlay film is equal using plastics curing film etc.
Even mould class is placed on vibration gauge and bubble last in mould shakes out, it is noted that should not over vibration.Die trial be preferably 100mm × 100mm ×
100mm or 70.7mm × 70.7mm × 70.7mm plastics die trial preferably uses 100mm when maximum size of coarse aggregate is greater than 25mm
The plastics die trial of × 100mm × 100mm, maximum size of coarse aggregate be not more than 25mm when, can be used 70.7mm × 70.7mm ×
The three plastics die trials of 70.7mm.
Clean any excess concrete impurity outside die trial.
By 1 internal dust wiped clean of microwave body, microwave instrument and die trial bottom are kept apart with oil-Absorbing Sheets, it will be with mould
Test specimen is put into microwave body 1, on the bottom plate of interior furnace 3 preparatory layer overlay can absorb water, oil maintenance paper, microwave body 1
Rated input power be preferably 1180W~1300W, microwave output power is preferably 700W~800W, and rated frequency should be 50Hz, volume
Determining microwave frequency should be 2300MHz~2500MHz, plate maintenance.
Power supply 6 is opened, then the first precuring 2h in interior furnace 3 of test specimen carries out heat cycles automatically, each maintenance circulation is
Work 30s, and quiet to stop 5min, net cycle time is preferably 5h；
Maintenance after circulation terminates, closes power supply 6, band mould test specimen is taken out after 30min, then demoulding carries out compression test, right
100mm3Cube specimen, should be by existing national standards " standard for test methods of mechanical properties of ordinary concrete " GB/T50081's
Regulation carries out compressive strength test；To 70.7mm3Cube specimen, should be by " the building mortar basic performance examination of existing professional standard
Test method standard " regulation of JGJ/T70 carries out compressive strength test, and it measures its and accelerates curing strength.
From power supply is closed to the time for carrying out compressive strength test no more than 50min, curing strength is accelerated to take three examinations
The arithmetic mean of instantaneous value of part, to 70.7mm3Cube specimen, multiplying factor, acceleration curing strength do not estimate standard curing 28d to intensity value
When compression strength, the strength relationships of the two should be established by test in advance.
Conclusion, microwave curing test method and device fabrication scheme determined above are currently, corresponding country's mark
In standard, fastest method is conserved, and the design requirement of GB/T50080, GB/T14902, GB/T50081 can be reached
A kind of new type test method is compared current national standard (CONCRETE STRENGTH EARLY PREDICTION test method standard JGJ/T15-2008)
In method, its arrival can make working efficiency at least improve 4 times, and save 4 times of space.Save the cost is into 10 times.It mentions
Preceding 28 days age strengths of precognition concrete reduce the generation of building concrete quality accident.
Control mode of the invention is automatically controlled by microwave computer control module 16, microwave computer control module 16
Control circuit can be realized by those skilled in the art's simple programming, the offer of power supply 6 also belongs to the known of this field
Common sense, so the present invention is not explained control mode and circuit connection.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (8)
1. a kind of concrete curing device, including microwave body (1), it is characterised in that: the right side of the microwave body (1)
Equipped with control cabinet (2), interior furnace (3) are equipped on the left of the inner cavity of the microwave body (1), the preceding table of the microwave body (1)
Left side of face is hinged with lid door (4), and the outer of the lid door (4) and interior furnace (3) overlaps, and the face center of the lid door (4) is embedded with
Observation window (5) is respectively equipped with power supply (6), switch (7), controller (8), resistive element (9), microwave hair in the control cabinet (2)
Device (10), temperature detect switch (TDS) (11) and radiator (12) are given birth to, is in series with switch (7), control between the positive and negative anodes of the power supply (6) respectively
Device (8), resistive element (9), microwave generator (10), temperature detect switch (TDS) (11) and radiator (12) processed, the microwave body (1)
Right side bottom center offer radiator window (17).
2. a kind of concrete curing device according to claim 1, it is characterised in that: be parallel on the controller (8)
First relay switch (13), first relay switch (13) require power that must not must not be lower than 5A lower than 1000w, electric current.
3. a kind of concrete curing device according to claim 2, it is characterised in that: the controller (8) and resistance member
It is parallel between part (9) the second relay switch (14), second relay switch (14) requires power must not be lower than 1500w, electricity
Stream must not be lower than 10A.
4. a kind of concrete curing device according to claim 3 and method, it is characterised in that: on the power supply (6) simultaneously
It is associated with touch panel switch (15) and microwave computer control module (16), the touch panel switch (15) and microwave computer control module (16)
Series connection.
5. a kind of concrete curing device according to claim 4, it is characterised in that: pass through electricity in the control cabinet (2)
Source plug is electrically connected commercial power socket.
6. a kind of concrete curing method according to claim 5, which is characterized in that specific step is as follows:
The first step, mixed concrete；
Second step, die trial
With standard mortar die trial, after the uniform brushing a thin layer release agent of die trial inner wall or machine oil, concrete is uniformly poured into
Die trial, and insert concrete according to standard, surface modes are finally touched into flat pressing with spatula, it is thin to cover one layer of maintenance in surface of test piece
Film, the curing membrane overlay film are placed on vibration gauge and bubble last in mould are shaken out using the uniform mould class such as plastics curing film,
Please noting that should not over vibration；
Third step, cleaning, cleaning die trial outside any excess concrete impurity；
4th step, microwave curing
STEP1 is isolated microwave instrument with die trial bottom by the microwave body (1) internal dust wiped clean with oil-Absorbing Sheets
It opens, will be put into mould test specimen in the microwave body (1), preparatory layer overlay can absorb water, is oily on the bottom plate of the interior furnace (3)
Maintenance paper；
STEP2 is opened power supply (6), then the first precuring 2h in the interior furnace (3) of test specimen carries out heat cycles automatically, each
Maintenance circulation is work 30s, and quiet to stop 5min, net cycle time is preferably 5h；
STEP3, maintenance after circulation terminates, are closed power supply (6), and band mould test specimen is taken out after 30min, then demoulding carries out resistance to compression examination
It tests；
STEP4 accelerates curing strength to take three from power supply is closed to the time for carrying out compressive strength test no more than 50min
Both the arithmetic mean of instantaneous value of test specimen, when accelerating curing strength presumption standard curing 28d compression strength, should be established in advance by test
Strength relationships.
7. a kind of concrete curing device according to claim 6 and method, it is characterised in that: the microwave body
(1) rated input power is preferably 1180W~1300W, and microwave output power is preferably 700W~800W, and rated frequency should be
50Hz, specified microwave frequency should be 2300MHz~2500MHz, plate maintenance.
8. a kind of concrete curing device according to claim 7 and method, it is characterised in that: the die trial is preferably
100mm × 100mm × 100mm or 70.7mm × 70.7mm × 70.7mm plastics die trial, maximum size of coarse aggregate are greater than 25mm
When, preferably use 100mm × 100mm × 100mm plastics die trial to can be used when maximum size of coarse aggregate is not more than 25mm
Three plastics die trial of 70.7mm × 70.7mm × 70.7mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910683902 | 2019-07-26 | ||
| CN2019106839022 | 2019-07-26 |
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| Publication Number | Publication Date |
|---|---|
| CN110281367A true CN110281367A (en) | 2019-09-27 |
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| CN201910689354.4A Pending CN110281367A (en) | 2019-07-26 | 2019-07-29 | A kind of concrete curing device and method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110936485A (en) * | 2019-12-27 | 2020-03-31 | 广西科学院 | Microwave curing method for building blocks |
| CN110950680A (en) * | 2019-12-27 | 2020-04-03 | 广西科学院 | Microwave curing method for concrete |
| CN111015914A (en) * | 2019-12-27 | 2020-04-17 | 广西科学院 | Microwave curing method for PC prefabricated part |
| CN111469258A (en) * | 2020-04-28 | 2020-07-31 | 丁西焘 | Constructional engineering concrete curing device and implementation method thereof |
| CN113352446A (en) * | 2021-06-12 | 2021-09-07 | 东北林业大学 | Concrete microwave curing box |
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| CN110936485A (en) * | 2019-12-27 | 2020-03-31 | 广西科学院 | Microwave curing method for building blocks |
| CN110950680A (en) * | 2019-12-27 | 2020-04-03 | 广西科学院 | Microwave curing method for concrete |
| CN111015914A (en) * | 2019-12-27 | 2020-04-17 | 广西科学院 | Microwave curing method for PC prefabricated part |
| CN111015914B (en) * | 2019-12-27 | 2021-06-22 | 广西科学院 | Microwave curing method for PC prefabricated part |
| CN110950680B (en) * | 2019-12-27 | 2021-07-16 | 广西科学院 | Microwave curing method for concrete |
| CN110936485B (en) * | 2019-12-27 | 2021-07-16 | 广西科学院 | Microwave curing method for building blocks |
| CN111469258A (en) * | 2020-04-28 | 2020-07-31 | 丁西焘 | Constructional engineering concrete curing device and implementation method thereof |
| CN113352446A (en) * | 2021-06-12 | 2021-09-07 | 东北林业大学 | Concrete microwave curing box |
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