CN105651976B - A kind of wet coupled transfer experimental rig of concrete heat and method - Google Patents
A kind of wet coupled transfer experimental rig of concrete heat and method Download PDFInfo
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- CN105651976B CN105651976B CN201511022077.XA CN201511022077A CN105651976B CN 105651976 B CN105651976 B CN 105651976B CN 201511022077 A CN201511022077 A CN 201511022077A CN 105651976 B CN105651976 B CN 105651976B
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- 238000012546 transfer Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000009413 insulation Methods 0.000 claims abstract description 28
- 239000012266 salt solution Substances 0.000 claims abstract description 22
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 22
- 238000005253 cladding Methods 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 49
- 238000012360 testing method Methods 0.000 claims description 18
- 150000003839 salts Chemical class 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000012188 paraffin wax Substances 0.000 claims description 2
- 238000009938 salting Methods 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims description 2
- 238000010998 test method Methods 0.000 abstract description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract description 3
- 238000003763 carbonization Methods 0.000 abstract description 3
- 230000003628 erosive effect Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 229920005479 Lucite® Polymers 0.000 description 19
- 239000004926 polymethyl methacrylate Substances 0.000 description 19
- 230000005540 biological transmission Effects 0.000 description 11
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 8
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 2
- 229910052939 potassium sulfate Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention belongs to field of civil engineering, disclose the wet coupled transfer experimental rig of concrete heat, including, Temperature Humidity Sensor, container, thermostat water bath, climatic chamber, saturated salt solution, waterproof heat insulation layer, Temperature Humidity Sensor is embedded in concrete sample to be measured in advance, placed at the vessel port of container equipped with saturated salt solution after concrete sample to be measured with spacing container inside and the external world, waterproof heat insulation layer is used to coat concrete sample side to be measured, it is placed on outside thermostat water bath after cladding heat insulation layer in climatic chamber, the container for placing concrete sample to be measured is located in thermostat water bath, concrete sample bottom surface to be measured is inside container, top surface is exposed in climatic chamber.The invention also discloses carry out the method that the wet coupled transfer of concrete heat is tested using the device.Apparatus of the present invention processing and fabricating is simple and test method simple operation, significant the problems such as to studying concrete carbonization because the wet coupled characteristic of concrete heat is brought, chloride erosion.
Description
Technical field
The invention belongs to field of civil engineering, it is related to a kind of wet coupled transfer experimental rig of concrete heat and method.
Background technology
Normal conditions, when concrete both sides have thermograde, can produce hygroscopic water transmission, temperature on Heat transmission direction
Humidity will be continuously increased in the concrete of relatively low side, therefore generate moist gradient, due to the appearance of moist gradient, it will cause
The hygroscopic water transmission of opposite direction.Equally, when concrete both sides have moist gradient, hot biography can be produced in hygroscopic water transmission direction
Defeated, temperature will be continuously increased in the concrete of the relatively low side of humidity, therefore generate thermograde, due to the appearance of thermograde,
The Heat transmission of opposite direction will be caused.As can be seen here, in concrete hygroscopic water transmission and Heat transmission is not separate, and
It is the coupled transfer process for influencing each other, mutually restricting.The presence of this coupling can influence concrete carbonization, chloride erosion
Or even the process of steel bar corrosion and Deterioration of Structural Performance.Therefore, research is carried out with non-to the wet coupled transfer characteristic of concrete heat
Often important theory significance and social value.
The content of the invention
Enter it is an object of the invention to provide a kind of wet coupled transfer experimental rig of concrete heat and using the experimental rig
The method of row heat and mass coupling transmission test, to study the various characteristics of the wet coupled transfer of concrete heat.
Following technical scheme is now provided to achieve the above object：
A kind of wet coupled transfer experimental rig of concrete heat, including, Temperature Humidity Sensor, container, thermostat water bath, constant temperature
Constant humidity cabinet, saturated salt solution, waterproof layer and heat insulation layer, wherein,
The Temperature Humidity Sensor is embedded in concrete sample to be measured in advance, at the vessel port of the container equipped with saturated salt solution
Placed can make to be isolated from the outside inside container after concrete sample to be measured, and the waterproof layer and heat insulation layer are used to coat to be measured mix
The side of solidifying soil test specimen；
The thermostat water bath is placed in climatic chamber, and is coated with heat insulation layer outside the thermostat water bath, is put
The container for having put concrete sample to be measured is located in thermostat water bath, and the container is located in thermostat water bath, is placed on vessel port
The concrete sample to be measured at place is located at outside thermostat water bath, and concrete sample bottom surface to be measured is inside container, and top surface is sudden and violent
It is exposed in climatic chamber.
The heat insulation layer for being coated on concrete sample side to be measured is located at the interlayer of waterproof layer.
The pre- Temperature Humidity Sensor being embedded in concrete sample to be measured can be one or more according to test objective, and
Outside is coated with waterproof ventilative layer.
The vessel port of the container is coated with waterproof layer with concrete sample contact position to be measured, to prevent gas by the contact
Place's effusion.
The platform for being easy to place concrete sample to be measured is provided with the vessel port of the container.
Saturated salt solution volume in the container is no more than the half of container volume, to ensure to have enough skies in container
Between formed in constant-temperature constant-humidity environment, and the saturated salt solution contain undissolved salt crystal, the saturated salt solution in container is existed
Saturation state can be maintained under different temperatures in process of the test.The rh value of variety classes saturated salt solution is different, can
Needed to be selected according to experiment, customary salt such as NaCl, NaBr, K2SO4.
The waterproof layer is made from epoxy resin or paraffin, and preferred epoxy is made.
The heat insulation layer is made from glass fibre.
The container is lucite cup.
It is a kind of to carry out the method that the wet coupled transfer of concrete heat is tested using above-mentioned experimental rig：
Step one, Temperature Humidity Sensor is embedded in concrete sample to be measured, the container loads saturated salt solution, treats
Be placed on after surveying concrete sample side cladding waterproof layer and heat insulation layer at the vessel port of the container, make inside container with it is extraneous every
From；
Step 2, the container that placed concrete sample to be measured is placed in thermostat water bath, outside the thermostat water bath
It is placed on after cladding heat insulation layer in climatic chamber, makes the bottom surface of concrete sample to be measured inside container, and top surface is sudden and violent
It is exposed in climatic chamber；
Step 3, the temperature for setting climatic chamber is T1, relative humidity is RH1；
Step 4, it is T to set water bath with thermostatic control pot temperature2, the saturated salt solution in the container in thermostat water bath
It is heated to T2When, the interior temperature that formed of container is T2, relative humidity is RH2Constant-temperature constant-humidity environment, wherein, T1≠T2, RH1≠RH2；
Or T1≠T2, RH1=RH2；Or T1=T2, RH1≠RH2；
Step 5, climatic chamber and the temperature and/or the difference of relative humidity in container so that the top of concrete sample
Face and bottom surface, which are produced, produces thermograde and moist gradient inside temperature difference and/or psychrometric difference, and then concrete sample, be embedded in advance
Temperature Humidity Sensor in concrete sample transmits the test data monitored to computer, and periodically to being tried comprising concrete
The container of part is weighed to obtain correlation test data.
The wet coupled transfer experimental rig of concrete heat of the present invention and method can be additionally used in other porous materials
The research of heat and mass coupling transmission characteristic.
Due to using such scheme, the invention has the advantages that：
1. experimental rig of the present invention and test method can be for research concrete and the hot wet couplings of other porous materials
Transmission characteristic is closed, includes hygroscopic water propagated flux, thermal gradient coefficient, wet gradient factor and the reality of concrete or other porous materials
When measurement concrete or other porous materials inside the humiture regularity of distribution at different depth, the research of these characteristics is to wet by heat
The problems such as coupled transfer acts on brought concrete carbonization, chloride erosion or even steel bar corrosion and Deterioration of Structural Performance all has
Very important theory significance and social value.
2. experimental rig of the present invention has, processing and fabricating is simple, cost is low, and the advantage of test method simple operation.
Brief description of the drawings
Fig. 1 be concrete sample to be measured shown in the embodiment of the present invention in Temperature Humidity Sensor arrangement and its side waterproof layer and
The schematic diagram of heat insulation layer arrangement；
Fig. 2 a are the schematic top plan view of the cup of lucite shown in the embodiment of the present invention；
Fig. 2 b are the schematic front view of the cup of lucite shown in the embodiment of the present invention；
Fig. 3 is the section knot for the experimental rig that concrete sample to be measured shown in the embodiment of the present invention has been placed in setting position
Structure schematic diagram.
Wherein：1 is the wire of Temperature Humidity Sensor, and 2 be Temperature Humidity Sensor, and 3 be concrete sample, and 4 be that waterproof is adiabatic
Layer, 41 be waterproof layer, and 42 be heat insulation layer, and 5 be thermostat water bath heat insulation layer, and 6 be lucite cup, and 61 be lucite cup rim of a cup
Platform, 62 be lucite cup cup, and 7 be saturated salt solution, and 8 be thermostat water bath, and 9 be climatic chamber.
Embodiment
The present invention will be further described with reference to the accompanying drawings.
As shown in Figure 1, Figure 2 and Figure 3, the wet coupled transfer experimental rig of a kind of concrete heat of the present invention, including：It is warm and humid
Spend sensor 2, waterproof layer 41, heat insulation layer 42, thermostat water bath heat insulation layer 5, lucite cup 6, saturated salt solution 7, thermostatted water
Bath 8, climatic chamber 9, concrete sample 3 to be measured are placed on the setting position of the experimental rig.
It is embedded in advance in concrete sample 3 after the parcel of Temperature Humidity Sensor 2 waterproof ventilative layer, to avoid moisture from penetrating into temperature
It is caused to damage in humidity sensor 2, concrete sample 3 is cylinder, the concrete sample 3 in embodiment of the present invention
Side is coated with the waterproof heat insulation layer 4 being made up of waterproof layer 41 and heat insulation layer 42 successively, wherein, heat insulation layer 42 is located at waterproof layer 41
Interlayer, be provided with the lucite cup rim of a cup platform for being easy to place concrete sample 3 at the rim of a cup of lucite cup 6
61, the concrete sample 3 is placed on lucite cup rim of a cup platform 61, and the inside of lucite cup 6 is isolated from the outside
Open, for guarantee sealing, the contact site of concrete sample 3 and lucite cup 6 is also wrapped on waterproof layer 41 and (do not marked in figure
Go out), saturated salt solution 7 is housed in lucite cup 6, the volume of saturated salt solution 7 is no more than lucite 6 volumes of cup
Half, contains undissolved salt to ensure to have in container enough spaces to be formed in constant-temperature constant-humidity environment, and the saturated salt solution
Crystal, makes that under different temperatures of the saturated salt solution in container in process of the test saturation state can be maintained.Variety classes is satisfied
It is different with the rh value of salting liquid, it can be needed to be selected according to experiment, customary salt such as NaCl, NaBr, K2SO4.Institute
State thermostat water bath 8 to be placed in climatic chamber 9, and thermostat water bath heat insulation layer 5 be coated with outside the thermostat water bath 8,
Concrete sample 3 is placed with lucite cup rim of a cup platform 61, lucite cup 6 is placed in thermostat water bath 8 so that organic
The cup 62 of glass is located in thermostat water bath, and is placed on the concrete sample 3 at lucite cup rim of a cup platform 61
In outside thermostat water bath 8 so that the bottom surface of concrete sample 3 is inside lucite cup 6, and the top of concrete sample 3
Face is exposed in climatic chamber 9.
The pre- Temperature Humidity Sensor 2 being embedded in concrete sample 3 can be one or more according to test objective, such as Fig. 1 institutes
Show, the embodiment of the present invention is the humiture at the measurement same profile different depth of concrete sample 3, and is convenient for numeric ratio
Compared with, and the number for the Temperature Humidity Sensor 2 selected is 4, and vertical distribution is in concrete sample 3.
Waterproof layer 41 as made from epoxy resin are selected in the embodiment of the present invention, from the heat insulation layer as made from glass fibre
42 and thermostat water bath heat insulation layer 5.
The saturated salt solution of selection of the embodiment of the present invention is NaCl saturated solutions.
The method for carrying out concrete sample heat and mass coupling transmission test using above-mentioned concrete sample and experimental rig to be measured：
Step one, the temperature T of climatic chamber is set1For 20 DEG C, relative humidity RH1For 53.5%；
Step 2, sets water bath with thermostatic control pot temperature T2For 40 DEG C, when the NaCl in the container in thermostat water bath satisfies
When being heated to 40 DEG C with solution, it is 40 DEG C, relative humidity RH that temperature is formed in lucite cup 62For 74.7% constant temperature and humidity
Environment；
Step 3, now, climatic chamber are different from the temperature and relative humidity in container so that the top of concrete sample
Face and bottom surface, which are produced, produces thermograde and moist gradient inside temperature difference and psychrometric difference, and then concrete sample,
The initial temperature of concrete sample top surface is 20 DEG C, and initial RH is 53.5%；Concrete sample bottom surface
Initial temperature is 40 DEG C, and initial RH is 74.7%, respectively after on-test when 1h, 2h, 24h, to being embedded in coagulation in advance
4 Temperature Humidity Sensors in native test specimen from top to bottom monitor that temperature t and humidity rh are recorded respectively, wherein,
During 1h, t1h-1For 25.5 DEG C, rh1h-1For 53.9%, t1h-2For 26.2 DEG C, rh1h-2For 54.0%；t1h-3For 27.0
DEG C, rh1h-3For 54.0%；t1h-4For 27.7 DEG C, rh1h-4For 65.5%；
During 2h, t2h-1For 26.8 DEG C, rh2h-1For 54.0%；t2h-2For 27.5 DEG C, rh2h-2For 54.2%；t2h-3For 28.3
DEG C, rh2h-3For 54.3%；t2h-4For 29.0 DEG C, rh2h-4For 68.3%；
24h, t24h-1For 26.8 DEG C, rh24h-1For 57.3%；t24h-2For 27.6 DEG C, rh24h-2For 71.4%；t24h-3For
28.3 DEG C, rh24h-3For 99.2%；t24h-4For 29.0 DEG C, rh24h-4For 100%,
Above-mentioned these data monitored are transmitted to computer by the wire 1 of Temperature Humidity Sensor 2, and periodically (to bag
Container containing concrete sample is weighed, to obtain correlation test data, in this embodiment, is entered after on-test during 24h
Row is weighed, and the fluid loss for measuring concrete sample is 1.97g, and these test datas can be used for passing the hygroscopic water of the concrete sample
Humiture distribution at different depth inside defeated flux, thermal gradient coefficient, wet gradient factor and the concrete sample that measures in real time
Rule is studied.
The wet coupled transfer experimental rig of concrete heat of the present invention and test method also can use other porous materials heat
The research of wet coupled transfer characteristic.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using the present invention.
And person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiment without passing through performing creative labour.Therefore, the invention is not restricted to implementation here
Example, those skilled in the art do not depart from improvement that scope made and change all should be according to the announcement of the present invention
Within protection scope of the present invention.
Claims (11)
1. a kind of wet coupled transfer experimental rig of concrete heat, it is characterised in that：Including Temperature Humidity Sensor, container, thermostatted water
Bath, climatic chamber, saturated salt solution, waterproof layer and heat insulation layer, wherein,
The Temperature Humidity Sensor is embedded in concrete sample to be measured in advance, is placed at the vessel port of the container equipped with saturated salt solution
It can make to be isolated from the outside inside container after concrete sample to be measured, the waterproof layer and heat insulation layer are used to coat concrete to be measured
The side of test specimen；
The thermostat water bath is placed in climatic chamber, and is coated with heat insulation layer outside the thermostat water bath, placed
The container of concrete sample to be measured is located in thermostat water bath, and the container is located in thermostat water bath, is placed at vessel port
Concrete sample to be measured is located at outside thermostat water bath, and concrete sample bottom surface to be measured is inside container, and top surface is exposed to
In climatic chamber；
Waterproof ventilative layer is coated with outside the Temperature Humidity Sensor；The heat insulation layer for being coated on concrete sample side to be measured
Positioned at the interlayer of waterproof layer.
2. the wet coupled transfer experimental rig of concrete heat as claimed in claim 1, it is characterised in that：
The Temperature Humidity Sensor is one or more.
3. the wet coupled transfer experimental rig of concrete heat as claimed in claim 1, it is characterised in that：The vessel port of the container
Waterproof layer is coated with concrete sample contact position to be measured.
4. the wet coupled transfer experimental rig of concrete heat as described in claim 1 or 3, it is characterised in that：The appearance of the container
The platform for being easy to place concrete sample to be measured is provided with device mouthful.
5. the wet coupled transfer experimental rig of concrete heat as claimed in claim 1, it is characterised in that：Saturation in the container
Salting liquid volume is no more than the half of container volume.
6. the wet coupled transfer experimental rig of concrete heat as claimed in claim 1, it is characterised in that：In the saturated salt solution
Contain undissolved salt crystal.
7. the wet coupled transfer experimental rig of concrete heat as claimed in claim 1, it is characterised in that：The waterproof layer is by epoxy
Resin or paraffin are made.
8. the wet coupled transfer experimental rig of concrete heat as claimed in claim 1, it is characterised in that：The waterproof layer is by epoxy
Resin-made is obtained.
9. the wet coupled transfer experimental rig of concrete heat as claimed in claim 1, it is characterised in that：The heat insulation layer is by glass
Fiber is made.
10. the wet coupled transfer experimental rig of concrete heat as claimed in claim 1, it is characterised in that：The container is organic
Glass.
11. a kind of carry out the side that the wet coupled transfer of concrete heat is tested using the experimental rig as described in claim 1 to 10 is any
Method, it is characterised in that：Comprise the following steps,
Step one, Temperature Humidity Sensor is embedded in concrete sample to be measured, the container loads saturated salt solution, to be measured mixed
It is placed on after solidifying soil test specimen side cladding waterproof layer and heat insulation layer at the vessel port of the container, makes to be isolated from the outside inside container；
Step 2, the container that placed concrete sample to be measured is placed in thermostat water bath, is coated outside the thermostat water bath
It is placed on after heat insulation layer in climatic chamber, makes the bottom surface of concrete sample to be measured inside container, and top surface is exposed to
In climatic chamber；
Step 3, the temperature for setting climatic chamber is T1, relative humidity is RH1；
Step 4, it is T to set water bath with thermostatic control pot temperature2, when the saturated salt solution in the container in thermostat water bath is heated to
T2When, the interior temperature that formed of container is T2, relative humidity is RH2Constant-temperature constant-humidity environment, wherein, T1≠T2, RH1≠RH2；Or T1≠
T2, RH1=RH2；Or T1=T2, RH1≠RH2；
The difference of temperature and/or relative humidity in step 5, climatic chamber and container so that the top surface of concrete sample and
Bottom surface, which is produced, produces thermograde and/or moist gradient inside temperature difference and/or psychrometric difference, and then concrete sample, be embedded in advance
Temperature Humidity Sensor in concrete sample transmits the test data monitored to computer, and periodically to being tried comprising concrete
The container of part is weighed to obtain correlation test data.
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| CN201511022077.XA CN105651976B (en) | 2015-12-30 | 2015-12-30 | A kind of wet coupled transfer experimental rig of concrete heat and method |
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| CN105651976B true CN105651976B (en) | 2017-10-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107436271A (en) * | 2017-08-31 | 2017-12-05 | 中南大学 | The research device of wick effect solution transmitting procedure in concrete |
| CN108645748B (en) * | 2018-04-20 | 2020-02-28 | 浙江大学 | Device and method for measuring water vapor transmission coefficient of porous material under temperature gradient |
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|---|---|---|---|---|
| CN101082618A (en) * | 2007-07-05 | 2007-12-05 | 中国科学院武汉岩土力学研究所 | Soil hot-wet coupling carrying model trial device |
| CN201819911U (en) * | 2010-09-25 | 2011-05-04 | 中建商品混凝土有限公司 | Concrete temperature and humidity difference test box |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2645320B2 (en) * | 1988-10-28 | 1997-08-25 | 清水建設株式会社 | Concrete strength management device |
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| CN101082618A (en) * | 2007-07-05 | 2007-12-05 | 中国科学院武汉岩土力学研究所 | Soil hot-wet coupling carrying model trial device |
| CN201819911U (en) * | 2010-09-25 | 2011-05-04 | 中建商品混凝土有限公司 | Concrete temperature and humidity difference test box |
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| CN102520003A (en) * | 2011-11-29 | 2012-06-27 | 中国科学院寒区旱区环境与工程研究所 | Device for testing ambient-temperature gradient freezing and thawing processes |
| CN203011875U (en) * | 2013-01-08 | 2013-06-19 | 山东农业大学 | Controllable wall thermal humidity coupling test table |
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| CN105651976A (en) | 2016-06-08 |
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