CN110346272A - Concrete carbonization drying and watering cycle simulation system and analogy method - Google Patents
Concrete carbonization drying and watering cycle simulation system and analogy method Download PDFInfo
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Abstract
The invention discloses a kind of concrete carbonization drying and watering cycle simulation systems, comprising: experiment casing is placed with concrete exemplar to be tested in the experiment casing；Solution cabinet, the interior immersion liquid being equipped with for impregnating the concrete exemplar of the liquor box body；Compressed air source unit is connected with the experiment casing and is used to inject CO to the experiment casing2Gas；Air interchanger, being connected with the experiment casing and being used to take a breath makes the intracorporal CO of the chamber2Gas concentration is kept within the set range；It is connected between the experiment casing and the solution cabinet, and is equipped with the fluid level control device for controlling the liquid level of the intracorporal immersion liquid of the chamber between the experiment casing and the solution cabinet.The invention also discloses a kind of concrete carbonization drying and watering cycle analogy methods.Concrete carbonization drying and watering cycle simulation system of the invention and analogy method, being capable of carbonation regular of the simulation concrete structure under immersion and non-steeped two state alternating actions.
Description
Technical field
The invention belongs to modelling technique fields, are specifically a kind of concrete carbonization drying and watering cycle simulation system and mould
Quasi- method.
Background technique
The carbonization of concrete is a kind of chemical attack suffered by concrete.CO in air2Gas penetrates into concrete,
With generation carbonate and water after its alkaline matter chemically reactive, the process for reducing concrete basicity is known as concrete carbonization,
Also referred to as neutralisation, chemical reaction are as follows: Ca (OH)2+CO2=CaCO3+H2O.Cement generates a large amount of hydrogen in hydration process
Calcium oxide makes to be filled with saturated calcium hydroxide solution in concrete voids, and alkaline medium has good protective effect to reinforcing bar,
Rebar surface is set to generate the Fe of indissoluble2O3And Fe3O4, referred to as passivating film.Making the basicity of concrete after carbonization reduces, when carbonization is super
When crossing the protective layer of concrete, under the conditions of water is with existing for air, concrete will be made to lose the protective effect to reinforcing bar, steel
Muscle starts to get rusty.For armored concrete, carbonization can be such that the basicity of inside concrete reduces, and destroy the passivation of rebar surface
Film, while increasing hydrogen ion content in concrete hole solution, thus concrete can be made to weaken the protective effect of reinforcing bar.
It is various for influencing the factor of Concrete Carbonation Speed.What is be affected first is cement type, because different
Contained calcium silicates and aluminum calcium salt mafic height are different in cement；Secondly, influencing concrete carbonization mainly also and in surrounding medium
CO2Concentration level and humidity size it is related, dry and under the conditions of be completely soaked, carburizing reagent is almost terminated, so this is
An extremely important reason in addition to cement type influence factor；In addition, the infiltration coefficient of concrete, permeable amount, coagulation
Soil excessively vibrate, concrete nearby water renewal speed, water velocity, structure size, water pressure and maintenance process and coagulation
The carbonization of soil has close relationship.
The Chinese patent of Publication No. CN201673151U discloses a kind of concrete accelerated carbonization tester, it includes
There are gas storehouse, carbonizing chamber, gas storehouse is equipped with air inlet, gas outlet, leakage port, and the air inlet and air outlet are equipped with valve, institute
Leakage port is stated equipped with gas bleeder valve, the air inlet and CO of gas storehouse2Feeder is connected with atmosphere, the gas outlet setting of gas storehouse
More than one, gas outlet is connect with carbonizing chamber, and carbonizing chamber lower end is connected with the test lead of concrete test block by sealing ring, gas storehouse
On be provided with gas analysis instrument.The concrete accelerated carbonization tester only can satisfy the carbonization test under air environment.
The Chinese patent of Publication No. CN104568723B discloses a kind of item of groundwater environment containing erosive carbon dioxide
Concrete accelerated carbonation test method and device under part, but only can satisfy the carbonization simulation test impregnated under environment.
Under the environment of inland river, river surface can be with seasonal variety；Under Environment of Reservoirs, the water level of reservoir also can be according to season
The conditions such as section, scheduling and change, it may be assumed that concrete structure of the construction in the environment such as inland river and reservoir will receive liquid and
The alternating action of air, existing carbonization simulator only individually under simulated air environment or can impregnate concrete carbon under environment
Law can not simulate construction in the variation of liquid level generating period and by the concrete under liquid and air alternating action
The carbonation regular of structure.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of concrete carbonization drying and watering cycle simulation system and simulation sides
Method, being capable of carbonation regular of the simulation concrete structure under immersion and non-steeped two state alternating actions.
In order to achieve the above objectives, the invention provides the following technical scheme:
Present invention firstly provides a kind of concrete carbonization drying and watering cycle simulation systems, comprising:
Experiment casing, for being placed with concrete exemplar to be tested；
Solution cabinet, for holding the immersion liquid for impregnating the concrete exemplar；
Compressed air source unit is connected with the experiment casing and is used to inject CO to the experiment casing2Gas；
Air interchanger, being connected with the experiment casing and being used to take a breath makes the intracorporal CO of the chamber2Gas concentration
It keeps within the set range；
It is connected between the experiment casing and the solution cabinet, and between the experiment casing and the solution cabinet
Fluid level control device equipped with the liquid level for controlling the intracorporal immersion liquid of the chamber.
Further, water inlet pipe and return pipe, the Liquid level are equipped between the experiment casing and the solution cabinet
Device includes the first water pump being arranged on the water inlet pipe and the second water pump being arranged on the return pipe.
Further, the compressed air source unit includes being stored with CO2The gas bomb of gas, the gas outlet of the gas bomb with
Admission line is equipped between the air inlet of the experiment casing, the admission line is equipped with pressure reducing valve；In the air interchanger
Equipped with for absorbing CO2The absorption plant of gas.
It further, further include simulation test control system, the simulation test control system includes controller, is arranged in institute
It states in experiment casing for detecting the liquid level sensor of liquid level, being arranged in the experiment casing for detecting CO2Gas
The CO of concentration2Concentration sensor, the first water pump control circuit for controlling first water pump, for controlling second water
Second water pump control circuit of pump and ventilation control circuit for controlling air interchanger operation are set on the admission line
There is air intake control valve；The controller respectively with the liquid level sensor, CO2Concentration sensor, air intake control valve, ventilation control
Circuit, the first water pump control circuit and the electrical connection of the second water pump control circuit.
Further, the water inlet pipe is equipped with water inlet control valve, and the return pipe is equipped with water-returning control valve, the control
Device is electrically connected with the water inlet control valve and water-returning control valve respectively.
Further, it is equipped in the experiment casing for controlling the temperature control equipment of analog temperature and for measuring temperature
Temperature sensor；The simulation test control system includes the temperature control electricity for controlling the temperature control equipment operation
Road, the controller are electrically connected with the temperature sensor and the temperature-control circuit respectively.
Further, it is equipped in the experiment casing and simulates the humidity conditioner of humidity and for measuring humidity for controlling
Humidity sensor；The simulation test control system includes the humid control electricity for controlling the humidity conditioner operation
Road, the controller are electrically connected with the humidity sensor and the humidity control circuit respectively.
Further, the drying unit for drying the concrete exemplar is equipped in the experiment casing；The simulation examination
Testing control system includes the drying control circuit for controlling the drying unit operation, and the controller and the drying control
Circuit electrical connection.
The invention also provides a kind of concrete carbonizations using concrete carbonization drying and watering cycle simulation system as described above
Drying and watering cycle analogy method controls the intracorporal liquid level of the chamber using the fluid level control device and advises according to the period of setting
Rule variation, until test is completed；
In a liquid level period of change, impregnating all or part of concrete exemplar and non-steeped two shapes respectively
Alternately carburizing reagent under state, and using compressed air source unit and air interchanger control respectively concrete exemplar impregnate and it is non-steeped
CO under two states2Gas concentration is in setting range.
Further, in the liquid level period of change of set period of time, when the concrete exemplar is in non-steeped shape
When state, concrete exemplar is dried using drying unit, the concrete exemplar is made to carry out carburizing reagent in dry conditions.
The beneficial effects of the present invention are:
Concrete carbonization drying and watering cycle simulation system of the invention is used by being arranged between experiment casing and solution cabinet
In the fluid level control device of control liquid level, the intracorporal liquid level of chamber can be made to change according to the periodic law of setting, in this way,
Make the alternately carburizing reagent under immersion and non-steeped two states of concrete exemplar, and passes through compressed air source unit and air interchanger
Concrete exemplar is controlled to impregnate and the CO under non-steeped two states2Gas concentration, analog concrete exemplar is different
CO2The carburizing reagent of gas concentration；In this way, can simulation concrete structure impregnate and non-steeped two state alternating actions under
Carburizing reagent.
Note: " dry " in " drying and watering cycle " herein refers to that concrete exemplar is in non-steeped state, without should understand that
Drying regime is in for concrete exemplar；" wet " refers to that concrete exemplar is in the water-saturated state impregnated.
Detailed description of the invention
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, the present invention provides following attached drawing and carries out
Illustrate:
Fig. 1 is the structural schematic diagram of concrete carbonization drying and watering cycle simulation system embodiment of the present invention；
Fig. 2 is the functional block diagram of simulation test control system.
Description of symbols:
1- experiment casing；2- concrete exemplar；3- solution cabinet；4- compressed air source unit；5- air interchanger；6- water inlet pipe；7-
Return pipe；The first water pump of 8-；The second water pump of 9-；10- admission line；11- pressure reducing valve；12- controller；13- liquid level sensor；
14-CO2Concentration sensor 14；The first water pump control circuit of 15-；The second water pump control circuit of 16-；17- air intake control valve；18-
Water inlet control valve；19- water-returning control valve；20- temperature control equipment；21- temperature sensor；22- temperature-control circuit；23- is wet
Spend control device；24- humidity sensor；25- humidity control circuit；26- ventilation control circuit；27- drying unit；28- drying
Control circuit；29- bracket；30- drainpipe；31- drain valve.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, so that those skilled in the art can be with
It better understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As shown in Figure 1, being the structural schematic diagram of concrete carbonization drying and watering cycle simulation system embodiment of the present invention.This implementation
The concrete carbonization drying and watering cycle simulation system of example, comprising:
Experiment casing 1, for being placed with concrete exemplar 2 to be tested；
Solution cabinet 3, for holding the immersion liquid for impregnating concrete exemplar 2；
Compressed air source unit 4 is connected and for injecting CO to experiment casing 1 with experiment casing 12Gas；
Air interchanger 5 is connected and for the CO made in experiment casing 1 that takes a breath with experiment casing 12Gas concentration is maintained at
In setting range；
It is connected between experiment casing 1 and solution cabinet 3, and is equipped between experiment casing 1 and solution cabinet 3 for controlling
The fluid level control device of the liquid level of immersion liquid in experiment casing 1.The bottom of the experiment casing 1 of the present embodiment is equipped with row
Water pipe 30, drainpipe 30 are equipped with drain valve 31.
Water inlet pipe 6 and return pipe 7, fluid level control device packet are equipped between the experiment casing 1 and solution cabinet 3 of the present embodiment
Include the second water pump 9 that first be arranged on water inlet pipe 6 water pump 8 He be arranged on return pipe 7.Specifically, experiment casing 1 is upper
Portion is equipped with inlet, lower part is equipped with liquid outlet I；The top of solution cabinet 3 is equipped with liquid return hole, lower part is equipped with liquid outlet II；Water inlet
The both ends of pipe 6 are connected with inlet and liquid outlet II respectively, and the both ends of return pipe 7 are connected with liquid outlet I and liquid return hole respectively
It is logical.
The bracket 29 for placing concrete exemplar 2, the bracket 29 of the present embodiment are equipped in the experiment casing 1 of the present embodiment
Equipped with multilayer placement platform, concrete exemplar 2 is placed on each layer of placement platform respectively, i.e. concrete exemplar 2 divides for multilayer
It is placed in experiment casing 1, different carbonization moulds can be respectively adopted to each layer concrete exemplar 2 according to the difference of simulated conditions
Quasi- test, it can all concrete exemplars 2 impregnate and the alternating carburizing reagent of non-steeped two states, it can also be with
Make the concrete exemplar 2 of bottom always in soaking state, the concrete exemplar of top layer can also be made to be in non-steeped shape always
State carries out carburizing reagent, and a part of wherein a certain layer concrete exemplar can also be made to be in and impregnated and non-steeped state progress carbon
Change reaction, another part is in immersion or non-steeped progress carburizing reagent etc. always, is not repeated.Certainly, bracket 29 can also be with
For the fixed frame of fixed cylindricality concrete exemplar 2, cylindricality concrete exemplar 2 is placed on vertically in experiment casing 1, more enough more quasi-
The non-steeped carburizing reagent of immersion of concrete structure in true simulation reality.
Immersion liquid can select different solution according to the requirement of simulation test, such as river water, seawater and can be to mixed
Other solution of the solidifying raw corrosiveness of local products, are not repeated.
Compressed air source unit 4 has been passed through CO to experiment casing 12Gas, can increase in experiment casing 1 has CO2Gas concentration,
And air interchanger 5 other noble gas sources are connected or are directly connected with ambient atmosphere, for replacing in experiment casing 1
Gas reduces the CO in experiment casing 12CO can be realized in this way, compressed air source unit 4 and air interchanger 5 combine in gas concentration2Gas
The technical purpose that bulk concentration is adjusted.It is equipped in air interchanger 5 for absorbing CO2The absorption plant of gas, absorption plant can be adopted
It is realized with various ways, CO is such as absorbed using alkaline matter2Gas etc., is not repeated.By the way that absorption plant is arranged, avoid CO2
Greenhouse gases are drained into ambient atmosphere, are conducive to environmental protection.
Specifically, the compressed air source unit 4 of the present embodiment includes being stored with CO2The gas bomb of gas, the outlet of gas bomb
Admission line 10 is equipped between mouth and the air inlet of experiment casing 1, admission line 10 is equipped with pressure reducing valve 11.It can satisfy to examination
CO is filled in tryoff body 12The technical purpose of gas.
Further, the concrete carbonization drying and watering cycle simulation system of the present embodiment further includes simulation test control system, mould
Quasi- experiment control system includes controller 12, is arranged in experiment casing 1 for detecting the liquid level sensor 13 of liquid level, setting
It sets in experiment casing 1 for detecting CO2The CO of gas concentration2Concentration sensor 14, the first water for controlling the first water pump 8
Pump control circuit 15, the second water pump control circuit 16 for controlling the second water pump 9 and for control air interchanger 5 operation change
Gas control circuit 26, admission line 10 are equipped with air intake control valve 17；Controller 12 respectively with liquid level sensor 13, CO2Concentration
Sensor 14, air intake control valve 17,16 electricity of ventilation control circuit 26, the first water pump control circuit 15 and the second water pump control circuit
Connection.The liquid level sensor 13 of the present embodiment uses ultrasonic sensor.
Specifically, the liquid level in 13 real-time measurement experiment casing 1 of liquid level sensor, controller 12 is according to level sensing
The collected liquid level data of device 13, and by the first water pump control circuit 15 to the first water pump 8 issue control instruction and
Control instruction is issued to the second water pump 9 by the second water pump control circuit 16.Certainly, controller 12 can also be default according to test
Liquid level changing rule directly issues control instruction to the first water pump 8 by the first water pump control circuit 15 and passes through the second water
Pump control circuit 16 issues control instruction to the second water pump 9.
CO2CO in 14 real-time measurement experiment casing 1 of concentration sensor2Gas concentration, controller 12 is according to CO2Concentration passes
The collected CO of sensor 142Concentration data, and to air intake control valve 17 issue control instruction turn off or on air intake control valve 17,
And control instruction is issued to air interchanger 5 by ventilation control circuit 26, in this way, passing through compressed air source unit 4 and air interchanger 5
Collective effect, to adjust the CO in experiment casing 12Gas concentration.Certainly, controller can also be according to the preset CO of test2Gas
Concentration changing rule directly controls the opening and closing of air intake control valve 17 or issues control to air interchanger 5 by ventilation control circuit 26
Instruction, by the collective effect of compressed air source unit 4 and air interchanger 5, to adjust the CO in experiment casing 12Gas concentration.
Further, water inlet pipe 6 is equipped with water inlet control valve 18, and return pipe 7 is equipped with water-returning control valve 19, and controller 12 divides
It is not electrically connected with water inlet control valve 18 and water-returning control valve 19, is opened by control water inlet control valve 18 and water-returning control valve 19
It closes, in conjunction with the start and stop of the first water pump 8 and the second water pump 9, liquid level that can quickly and accurately in Control experiment cabinet 1.
Further, it is equipped in experiment casing 1 for controlling the temperature control equipment 20 of analog temperature and for measuring temperature
Temperature sensor 21；Simulation test control system includes the temperature-control circuit for controlling the operation of temperature control equipment 20
22, controller 12 is electrically connected with temperature sensor 21 and temperature-control circuit 22 respectively.In this way, controller 12 can be according to chamber
Real time temperature data in body 1 issue control instruction to temperature control equipment 20 by temperature-control circuit 22, adjust chamber
Temperature in body 1 is fallen within the set range.
Further, it is equipped in experiment casing 1 and simulates the humidity conditioner 23 of humidity and for measuring humidity for controlling
Humidity sensor 24；Simulation test control system includes the humidity control circuit for controlling the operation of humidity conditioner 23
25, controller 12 is electrically connected with humidity sensor 24 and humidity control circuit 25 respectively.In this way, controller 12 can be according to chamber
Real-time humidity data in body 1 issues control instruction to humidity conditioner 23 by humidity control circuit 25, adjusts chamber
Humidity in body 1 is fallen within the set range.
Further, the drying unit 27 for drying concrete exemplar 2 is equipped in experiment casing 1；Simulation test control system
System includes the drying control circuit 28 for controlling the operation of drying unit 27, and controller 18 is electrically connected with drying control circuit 28.
It can be when concrete exemplar 2 be in non-steeped state according to the difference of test simulation condition by setting drying unit 27
Start drying unit 27, dries concrete exemplar 2, concrete exemplar 2 is made to carry out carburizing reagent under the dry condition.
The concrete carbonization drying and watering cycle simulation system of the present embodiment, by being arranged between experiment casing and solution cabinet
For controlling the fluid level control device of liquid level, the intracorporal liquid level of chamber can be made to change according to the periodic law of setting, in this way, i.e.
It can make the alternately carburizing reagent under immersion and non-steeped two states of concrete exemplar, and be filled by compressed air source unit and ventilation
Control concrete exemplar is set to impregnate and the CO under non-steeped two states2Gas concentration, analog concrete exemplar is in difference
CO2The carburizing reagent of gas concentration；In this way, can simulation concrete structure impregnate and non-steeped two state alternating actions
Under carburizing reagent.
Below with reference to the above-mentioned concrete carbonization drying and watering cycle simulation system of the present embodiment, to the concrete carbonization of the present embodiment
The specific embodiment of drying and watering cycle analogy method is illustrated.
The concrete carbonization drying and watering cycle analogy method of the present embodiment, using in fluid level control device Control experiment cabinet 1
Liquid level according to setting periodic law change, until test complete；In a liquid level period of change, make concrete exemplar 2
All or part respectively impregnate and non-steeped two states under alternately carburizing reagent, and using compressed air source unit 4 and changing
Device of air 5 controls concrete exemplar 2 respectively and is impregnating and the CO under non-steeped two states2Gas concentration is in setting range
It is interior.
In addition, according to the difference of test simulation condition coagulation can also be worked as in the liquid level period of change of set period of time
When soil sample part 2 is in non-steeped state, concrete exemplar 2 is dried using drying unit, makes concrete exemplar 2 in dry conditions
Carry out carburizing reagent.
In this way, difference of the concrete carbonization drying and watering cycle analogy method of the present embodiment according to application scenarios, mainly have with
Lower four kinds of test simulation operating conditions:
The first operating condition: impregnate with a liquid level period of change of non-steeped composition is longer namely alternation of wetting and drying frequency compared with
It is low；Concrete exemplar 2 is in water-saturated state during immersion；The immersion liquid in experiment casing 1 is evacuated to solution after the completion of immersion
In cabinet 3, concrete exemplar 2 is dried using drying unit 27, and the CO in Control experiment cabinet 12Gas is extremely set
Range carries out carburizing reagent to concrete exemplar 2 in non-steeped period；I.e. under the operating condition, concrete exemplar 2 is mainly non-steeped
Period carries out carburizing reagent, and non-steeped period is to 2 drying and processing of concrete exemplar.
Second of operating condition: immersion is shorter with a liquid level period of change of non-steeped composition, i.e. alternation of wetting and drying frequency is higher,
Concrete is in water-saturated state during immersion；Immersion liquid in experiment casing 1 is evacuated in solution cabinet 3, Control experiment case
CO in body 12Gas carries out carburizing reagent in non-steeped period concrete to setting range；I.e. under the operating condition, concrete exemplar
2 mainly directly carry out carburizing reagent in non-steeped period, and non-steeped period is not to 2 drying and processing of concrete exemplar.
The third operating condition: impregnate with a liquid level period of change of non-steeped composition is longer namely alternation of wetting and drying frequency compared with
Low, concrete exemplar 2 is in water-saturated state during immersion, while being filled with CO in experiment casing 12Gas to setting concentration model
It encloses, the immersion liquid in experiment casing 1 is evacuated in solution cabinet 3 after the completion of immersion, using drying unit 27 to coagulation soil sample
Part 2 is dried, and the CO in Control experiment cabinet 1 always2Gas within the set range, to coagulation soil sample during entire test
The carburizing reagent of the progress overall process of part 2；I.e. under the operating condition, concrete exemplar 2 is during immersion and non-steeped period carries out carbon
Change reaction, non-steeped period is to 2 drying and processing of concrete exemplar.
4th kind of operating condition: impregnate with a liquid level period of change of non-steeped composition is shorter namely alternation of wetting and drying frequency compared with
Height, concrete is in water-saturated state during immersion, while being filled with CO in experiment casing 12Gas is impregnated to setting concentration range
Concrete is not dried after the completion, and the CO in Control experiment cabinet 1 always2Gas within the set range, during test
The carburizing reagent of overall process is carried out to concrete.I.e. under the operating condition, concrete exemplar 2 during immersion and non-steeped period into
Row carburizing reagent, non-steeped period is not to 2 drying and processing of concrete exemplar.
Certainly, the above is only there is certain representative four kinds of operating conditions can also be used more according to the difference of simulated scenario
The carbonation reaction of kind of combination change modeling concrete exemplar 2, such as the difference for simulating Various Seasonal liquid level period of change,
Concrete exemplar 2 can also not dried in other times section within the period of setting to 2 drying and processing of concrete exemplar
Processing etc., is not repeated.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention
It encloses without being limited thereto.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in the present invention
Protection scope within.Protection scope of the present invention is subject to claims.
Claims (10)
1. a kind of concrete carbonization drying and watering cycle simulation system, it is characterised in that: include:
Experiment casing (1), for being placed with concrete exemplar (2) to be tested；
Solution cabinet (3), for holding the immersion liquid for impregnating the concrete exemplar (2)；
Compressed air source unit (4) is connected and for injecting CO to the experiment casing (1) with the experiment casing (1)2Gas；
Air interchanger (5) is connected and for the CO made in the experiment casing (1) that takes a breath with the experiment casing (1)2Gas
Concentration is kept within the set range；
It is connected between the experiment casing (1) and the solution cabinet (3), and the experiment casing (1) and the liquor box
The fluid level control device for controlling the liquid level of the immersion liquid in the experiment casing (1) is equipped between body (3).
2. concrete carbonization drying and watering cycle simulation system according to claim 1, it is characterised in that: the experiment casing
(1) water inlet pipe (6) and return pipe (7) are equipped between the solution cabinet (3), the fluid level control device includes being arranged in institute
The second water pump (9) stating the first water pump (8) on water inlet pipe (6) and being arranged on the return pipe (7).
3. concrete carbonization drying and watering cycle simulation system according to claim 2, it is characterised in that: the compressed air source unit
It (4) include being stored with CO2The gas bomb of gas, the air inlet of the gas outlet of the gas bomb and the experiment casing (1)
Between be equipped with admission line (10), the admission line (10) be equipped with pressure reducing valve (11)；It is equipped with and uses in the air interchanger (5)
In absorption CO2The absorption plant of gas.
4. concrete carbonization drying and watering cycle simulation system according to claim 3, it is characterised in that:
Including simulation test control system, the simulation test control system includes controller (12), is arranged in the chamber
For detecting the liquid level sensor (13) of liquid level, being arranged in the experiment casing (1) for detecting CO in body (1)2Gas
The CO of bulk concentration2Concentration sensor (14), is used for the first water pump control circuit (15) for controlling first water pump (8)
Control the second water pump control circuit (16) of second water pump (9) and the ventilation for controlling the air interchanger (5) operation
Control circuit (26), the admission line (10) are equipped with air intake control valve (17)；The controller (12) respectively with the liquid
Level sensor (13), CO2Concentration sensor (14), air intake control valve (17), ventilation control circuit (26), the first water pump control electricity
Road (15) and the second water pump control circuit (16) electrical connection.
5. concrete carbonization drying and watering cycle simulation system according to claim 4, it is characterised in that: the water inlet pipe (6)
Be equipped with water inlet control valve (18), the return pipe (7) be equipped with water-returning control valve (19), the controller (12) respectively with institute
State water inlet control valve (18) and water-returning control valve (19) electrical connection.
6. concrete carbonization drying and watering cycle simulation system according to claim 4, it is characterised in that: the experiment casing
(1) temperature sensor (21) for controlling the temperature control equipment (20) of analog temperature and for measuring temperature is equipped in；Institute
Stating simulation test control system includes the temperature-control circuit (22) for controlling the temperature control equipment (20) operation, described
Controller (12) is electrically connected with the temperature sensor (21) and the temperature-control circuit (22) respectively.
7. concrete carbonization drying and watering cycle simulation system according to claim 4, it is characterised in that: the experiment casing
(1) humidity conditioner (23) for controlling simulation humidity and the humidity sensor (24) for measuring humidity are equipped in；Institute
Stating simulation test control system includes the humidity control circuit (25) for controlling the humidity conditioner (23) operation, described
Controller (12) is electrically connected with the humidity sensor (24) and the humidity control circuit (25) respectively.
8. according to the described in any item concrete carbonization drying and watering cycle simulation systems of claim 4-7, it is characterised in that: the examination
The drying unit (27) for drying the concrete exemplar (2) is equipped in tryoff body (1)；The simulation test control system packet
The drying control circuit (28) for controlling the drying unit (27) operation is included, the controller (18) and the drying control
Circuit (28) electrical connection.
9. a kind of concrete carbonization using the concrete carbonization drying and watering cycle simulation system as described in claim any one of 1-8 is dry
Wet circulating analog method, it is characterised in that:
It controls the liquid level in the experiment casing (1) using the fluid level control device to change according to the periodic law of setting, directly
It is completed to test；
In a liquid level period of change, impregnating all or part of concrete exemplar (2) and non-steeped two shapes respectively
Alternately carburizing reagent under state, and control concrete exemplar (2) respectively using compressed air source unit (4) and air interchanger (5) and soaking
CO under bubble and non-steeped two states2Gas concentration is in setting range.
10. concrete carbonization drying and watering cycle analogy method according to claim 9, it is characterised in that: in set period of time
The liquid level period of change in, when the concrete exemplar (2) is in non-steeped state, using drying unit dry coagulation
Soil sample part (2) makes the concrete exemplar (2) carry out carburizing reagent in dry conditions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910739463.2A CN110346272A (en) | 2019-08-12 | 2019-08-12 | Concrete carbonization drying and watering cycle simulation system and analogy method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910739463.2A CN110346272A (en) | 2019-08-12 | 2019-08-12 | Concrete carbonization drying and watering cycle simulation system and analogy method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110346272A true CN110346272A (en) | 2019-10-18 |
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