CN209327148U - Concrete anti-ice abrasion test device - Google Patents
Concrete anti-ice abrasion test device Download PDFInfo
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- CN209327148U CN209327148U CN201821669185.5U CN201821669185U CN209327148U CN 209327148 U CN209327148 U CN 209327148U CN 201821669185 U CN201821669185 U CN 201821669185U CN 209327148 U CN209327148 U CN 209327148U
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Abstract
Originally practical to disclose a kind of concrete anti-ice abrasion test device, including main body bottom plate, cryogenic thermostat water-bath.It is provided with test block hold-down support, ice bank sliding support on main body bottom plate, slides stationary annular low temperature ice bank on ice bank sliding support, toroidal cryogenic ice bank is made of outer tank body, inner tank body, is formed coolant liquid between interior outer tank body and is recycled interlayer.The fixed bracket of reciprocating engine, reciprocating engine speed-regulating switch, reciprocating engine is provided on main body bottom plate；Reciprocating engine is made of variable speed electric motors, particularly and eccentric rod, push-pull rod, reciprocating lever, and variable speed electric motors, particularly rotates axis connection eccentric rod, and eccentric rod connects push-pull rod, and push-pull rod connects reciprocating lever, and reciprocating lever connects annular Low-temperature Ice slot, and toroidal cryogenic ice bank is connect with cryogenic thermostat water-bath.The experimental rig more accurately tests concrete anti-ice polishing machine.
Description
Technical field
Originally practical to be related to concrete test technical field, more particularly to a kind of concrete anti-ice abrasion test device
Background technique
The phenomenon that stream is insulted and is referred to before river freezeup, and ice cube and river water flow together.Within the scope of global cold area, the winter
Season, incident stream Ling Wenti was inevitable.Sea ice can act on bridge, harbour, beacon and petroleum in ocean engineering
Platform, fresh ice can hit the concrete dam upstream face of reservoir, canal, river bridge pier.Floating ice swims on the water surface and can generate
Kinetic energy generates hydraulic structure and hits, rubs, so that concrete surface is worn, long-term accumulated ice damage by friction
It will cause hydraulic structure structure degradation, reduce durability and the safety of hydraulic structure.Therefore, in order to guarantee severe cold area water
The military service performance and used life of sharp engineering needs to assess and concrete anti-ice polishing machine is tested and assessed.
Currently, having some for anti-ice abrasive wear experimental rig, two classes are broadly divided into, one is the U.S. and Japan respectively
Invention has the ice grinding machine of turntable, the concrete sample that ice cube touches rotation is tested, which easily causes sample not
Uniform load and experimental rig is excessive, cost are high.Another kind is to carry out ice-with shearing case apparatus according to Soil mechanics experiment design
The sliding test of concrete, although the device is simple, operating process is by following disadvantage: (1) needing that room temperature will be tested
The exposure condition of true concrete structure is simulated, higher to Laboratory Request, experimentation cost is excessively high；(2) in order to during test
It avoids the ice of concrete surface from growing, needs concrete carrying out part heating, easily cause ice cube hardness to change, influence ice
The result of abrasion.Every country test is to carry out under different testing equipments, and focus on different parameter (abrasion sides
Method, contact pressure, temperature, ice drift velocity), the test result from different researchs and bad association, research achievement can not be into
Row reference.
Utility model content
This practical purpose is to provide a kind of concrete anti-ice abrasion test device, above-mentioned of the existing technology to solve
Problem has studied concrete anti-ice abrasiveness under Different climate condition, flow rate of water flow by changing test temperature and ice cube kinetic energy
Energy.
To achieve the above object, originally practical to provide following scheme:
Originally practical to disclose a kind of concrete anti-ice abrasion test device, including the speed regulation of main body bottom plate, reciprocating engine, reciprocating engine is opened
It closes, toward the fixed bracket of machine, test block hold-down support, ice bank sliding support and toroidal cryogenic ice bank, cryogenic thermostat water-bath, it is described past
It answers a pager's call including variable speed electric motors, particularly, eccentric rod, push-pull rod, reciprocating lever, the variable speed electric motors, particularly, motor speed-regulating switch, motor fixed rack
It is fixedly installed on the main body bottom plate, the variable speed electric motors, particularly end cap is fixed on inside motor fixed rack preformed hole, speed change
The rotation axis of motor passes through preformed hole and is sequentially connected eccentric rod, push-pull rod, reciprocating lever；Reciprocating lever is sliding by the fixed bracket of reciprocating lever
It is dynamic to be fixed on the fixed bracket of reciprocating engine；The test block hold-down support is fixedly installed on the main body support and for fixed mixed
Temperature control plate is tiled to maintain concrete test block upper surface not freeze in solidifying soil test block, told test block hold-down support surface；Told ring
Shape low temperature ice bank is slidably fixed on ice bank sliding support and can constrain ice cube sliding, and rub concrete test block；The counterweight is put
It is placed on main body bottom plate, counterweight is placed in toroidal cryogenic ice bank above ice cube when test, passes through and change contact pressure size
Adjust frictional force between ice cube and concrete test block；The coolant liquid of told cryogenic thermostat water-bath and told toroidal cryogenic ice bank, which recycles, presss from both sides
Layer connection is to control the temperature around ice cube.
Preferably, the reciprocating engine tests the anti-ice mill of concrete under differentiated friction speed equipped with reciprocating engine speed-regulating switch
Damage performance.
The preferred reciprocating engine uses variable speed electric motors, particularly, adjusts motor rotation speed by reciprocating engine speed-regulating switch, that is, adjusts
Save the speed of ice cube and concrete test block friction.Degree of injury of the ice cube to concrete for hydraulic structure under test differentiated friction speed.
Preferably, the variable speed electric motors, particularly bearing is fixedly connected with the eccentric rod, and the eccentric rod and the push-pull rod are cut with scissors
Connection, the push-pull rod are hinged with the reciprocating lever.
Preferably, the ice bank sliding support be auxiliarily fixed concrete test block and meanwhile limit annular Low-temperature Ice slot height and
Glide direction.The ice bank sliding support includes vertical bar and cross bar, and vertical bar is welded on the master close to test block hold-down support two sides
To play the role of being auxiliarily fixed test block on body bottom plate, cross bar is slideway, and limitation limits the height and sliding of annular Low-temperature Ice slot
Direction.
Preferably, the reciprocating engine includes motor speed-regulating switch to test the anti-ice abrasion of concrete under differentiated friction speed
Performance.
Preferably, the variable speed electric motors, particularly bearing is fixedly connected with the eccentric rod, and the eccentric rod and the push-pull rod are cut with scissors
Connection, the push-pull rod are hinged with the reciprocating lever.
Preferably, the ice bank sliding support be auxiliarily fixed concrete test block and meanwhile limit annular Low-temperature Ice slot height and
Glide direction.The ice bank sliding support includes vertical bar and cross bar, and vertical bar is welded on the master close to test block hold-down support two sides
To play the role of being auxiliarily fixed test block on body bottom plate, cross bar is slideway, and limitation limits the height and sliding of annular Low-temperature Ice slot
Direction.
Preferably, the toroidal cryogenic ice bank is made of outer tank body, inner tank body, and coolant liquid circulation folder is formed between interior outer tank body
Layer, and toroidal cryogenic ice bank height is greater than the overlapping height of ice cube and counterweight.The toroidal cryogenic ice bank be made of stainless steel with
Transmit low temperature.
Preferably, the test block hold-down support includes firm banking and two fixed angles bracing members, each fixed angles
Bracing members are fixedly connected on the body base, are equipped with a nut, the nut on the fixed angles bracing members
Internal screw thread is connected with a press bolt.
Preferably, the cryogenic thermostat water-bath lowest refrigerating temperature is subzero 30 degree, and control essence is reached for ± 0.1 degree, can
Temperature are arranged according to the climatic conditions in different simulation areas, strict control test variable increases the accurate of test result
Property, while the thermal energy for reducing test block temperature and friction generation influences ice cube hardness bring.
Preferably, the counterweight is made of 25mm steel plate, and every piece of weight 1kg, device configuration has muti-piece counterweight.It can when test
To place the contact pressure of different number of counterweight adjustment ice cube and test block above the ice cube into the toroidal cryogenic ice bank, thus
Adjust frictional force size between ice cube and test block.
Originally practical that a kind of application experimental rig test concrete anti-ice polishing machine as described above is also provided including following
Step:
Step 1: after the concrete test block conserved is taken out, visual inspection is carried out, records concrete test block mass M1,
And it measures concrete test block and moves thickness h1, super depth of field 3-D scanning is carried out to concrete test block and obtains image T1；
Step 2: concrete test block is fixed on the test block hold-down support, and by ice cube, counterweight is successively overlapped and is put into institute
It states in toroidal cryogenic ice bank and records ice cube G1, counterbalance mass G2；
Step 3, starts the motor speed-regulating switch and the cryogenic thermostat water-bath, and Xiang Suoshu coolant liquid recycles in interlayer
It is passed through coolant liquid, is persistently freezed to coolant liquid using the cryogenic thermostat water-bath so that the coolant liquid recycles the cooling in interlayer
Liquid keeps stable low-temperature condition；Ice cube moves back and forth on concrete test block under the drive of told reciprocating engine, friction；
Step 4: after reaching erosion path, told motor speed-regulating switch is closed, terminates test, takes out concrete test block, is wiped
It weighs except concrete test block surface moisture and records weight M2, and measure the thickness h of concrete test block2, to concrete test block again into
The super depth of field 3-D scanning of row obtains image T2；
Step 5: experimental data processing: mass loss rate Δ W=(M1-M2)/M1× 100%, relative thickness loss late Δ h
=(h1-h2) × 100%, any time frictional force F=μ (G1+G2), whereinH is that ice cube is high
Degree.Test block degree of impairment is analyzed according to relative thickness loss late Δ h, compares the super depth image T before and after erosion test1And T2, see
Outer damage situation is examined, under identical frictional force F effect, mass loss rate Δ W is smaller, relative thickness loss late Δ h is smaller
The performance of concrete test block anti-ice abrasion is better.
Originally practical to achieve following technical effect compared with the existing technology: (this practical creation compared with prior art, is had
The advantages of having and good effect.)
Concrete anti-ice abrasion test device during this is practical, the reciprocating lever movable length of reciprocating engine are 15cm-20cm,
Test block length uses 40cm, and effective friction length of ice cube and test block is less than test block length, can effectively compare friction to examination
The damage of block；Test block hold-down support surface bedding silica-gel electrothermic plate constant temperature heating plate, to test block lower surface heated at constant temperature when test,
It will not be frozen by the water that temperature transmitting melts ice friction test block upper surface；Concrete test block is fixed on test block hold-down support
On, ice cube is put into toroidal cryogenic ice bank, ice cube bottom end is contacted with test block upper surface, toroidal cryogenic ice bank and cryogenic thermostat water
Bath connection, adjusts environment temperature；Cryogenic temperature by adjusting cryogenic thermostat water-bath, which can be adjusted in toroidal cryogenic ice bank, to freeze
The temperature of liquid adjusts the temperature of ice cube ambient enviroment, change ice cube and test block friction speed by adjusting the reciprocating engine speed of service
Degree, by adjusting the contact pressure between counterbalance mass change ice cube and test block and with this regulating friction force size, more accurately
The ice under different temperatures, friction speed, different kinetic energy is simulated to the friction destruction of concrete for hydraulic structure；Further, originally practical to mention
The evaluation concrete anti-ice abrasion test device of confession, concrete is in practical projects by floating ice friction destruction journey during being ice flood
Degree provides effective data and supports.
Detailed description of the invention
It, below will be to institute in embodiment in order to illustrate more clearly of this practical embodiment or technical solution in the prior art
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this practical some implementation
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the axonometric drawing of this practical concrete anti-ice abrasion test device provided；
Fig. 2 is the structural schematic diagram of the test specimen hold-down support of this practical concrete anti-ice abrasion test device provided；
In figure: 1- main body bottom plate；2- variable speed electric motors, particularly；3- reciprocating engine machine speed-regulating switch；4- ice bank sliding support；5- annular
Low temperature ice bank；6- pipeline；7- cryogenic thermostat water-bath；8- reciprocating engine machine fixes bracket；9- eccentric rod；10- push-pull rod；11- is reciprocal
Bar fixed frame；12- test block hold-down support；13- reciprocating lever；14- test block；15- reciprocating engine；16- counterweight；17- firm banking；18-
Fixed angles bracing members；19- nut；20- presses bolt
Specific embodiment
With reference to the accompanying drawing, a specific embodiment of the utility model is described in detail, it is to be understood that this
The protection scope of utility model is not limited by the specific implementation.
Embodiment 1
A kind of concrete anti-ice abrasion test device, as shown in Fig. 1~2, which includes
Main body bottom plate 1, reciprocating engine 15, reciprocating engine speed-regulating switch 3, past machine fixed bracket 8, test block hold-down support 12, ice bank sliding support 4
And toroidal cryogenic ice bank 5, cryogenic thermostat water-bath 7, the reciprocating engine 15 includes variable speed electric motors, particularly 2, eccentric rod 9, push-pull rod 10, past
Compound lever 13；
The variable speed electric motors, particularly 2, motor speed-regulating switch, motor fixed rack are fixedly installed on the main body bottom plate 1, institute
It states 2 end cap of variable speed electric motors, particularly to be fixed on inside motor fixed rack preformed hole, the rotation axis of variable speed electric motors, particularly passes through preformed hole and successively connects
Eccentric rod 9, push-pull rod 10, reciprocating lever 13 are connect, and 2 bearing of the variable speed electric motors, particularly is fixedly connected with the eccentric rod 9, it is described inclined
Core bar 9 is hinged with the push-pull rod 10, and the push-pull rod 10 is hinged with the reciprocating lever 13；
Reciprocating lever 13 is slidably fixed on the fixed bracket 8 of reciprocating engine by the fixed bracket 11 of reciprocating lever；The test block is fixed
Support 12 is fixedly installed on the main body support and for fixing concrete test block, 12 surface of the test block hold-down support tiling
Temperature control plate is to maintain concrete test block upper surface not freeze；The test block hold-down support 12 includes firm banking 17 and two
Fixed angles bracing members 18, each fixed angles bracing members 18 are fixedly connected on the body base 1, the fixed angles
A nut 19 is equipped on bracing members 18,19 internal screw thread of nut is connected with a press bolt 20；
The toroidal cryogenic ice bank 5 is slidably fixed on ice bank sliding support 4 and can constrain ice cube sliding, and rub concrete
Test block；The counterweight 16 is placed on main body bottom plate 1, counterweight is placed in toroidal cryogenic ice bank 5 above ice cube when test, is led to
Cross frictional force between change contact pressure size adjustment ice cube and concrete test block；Told cryogenic thermostat water-bath 7 with tell annular it is low
The coolant liquid circulation interlayer of warm ice bank 5 is connected to control the temperature around ice cube.
It should be noted that the reciprocating engine 15 is equipped with reciprocating engine speed-regulating switch 3 to test coagulation under differentiated friction speed
The anti-ice polishing machine of soil.
Use the test of the concrete anti-ice abrasion test device test concrete anti-ice polishing machine in above-described embodiment
Method, comprising the following steps:
Step 1: after the concrete test block conserved is taken out, visual inspection is carried out, records concrete test block mass M1,
And it measures concrete test block and moves thickness h1, super depth of field 3-D scanning is carried out to concrete test block and obtains image T1；
Step 2: concrete test block is fixed on the test block hold-down support 12, and by ice cube, counterweight 16 is successively overlapped
It is put into the toroidal cryogenic ice bank 5 and records ice cube G1, counterbalance mass G2；
Step 3, starts the motor speed-regulating switch and the cryogenic thermostat water-bath 7, and Xiang Suoshu coolant liquid recycles in interlayer
It is passed through coolant liquid, is persistently freezed to coolant liquid using the cryogenic thermostat water-bath 7 so that cold in coolant liquid circulation interlayer
But liquid keeps stable low-temperature condition；Ice cube moves back and forth on concrete test block under the drive of told reciprocating engine 15, friction；
Step 4: after reaching erosion path, told motor speed-regulating switch is closed, terminates test, takes out concrete test block, is wiped
It weighs except concrete test block surface moisture and records weight M2, and measure the thickness h of concrete test block2, to concrete test block again into
The super depth of field 3-D scanning of row obtains image T2；
Step 5: experimental data processing: mass loss rate Δ W=(M1-M2)/M1× 100%, relative thickness loss late Δ h
=(h1-h2) × 100%, any time frictional force F=μ (G1+G2), whereinH is that ice cube is high
Degree.Test block degree of impairment is analyzed according to relative thickness loss late Δ h, compares the super depth image T before and after erosion test1And T2, see
Outer damage situation is examined, under identical frictional force F effect, mass loss rate Δ W is smaller, relative thickness loss late Δ h is smaller
The performance of concrete test block anti-ice abrasion is better.
Embodiment 2
Embodiment 2 is different only in that with embodiment 1:
The reciprocating engine 15 uses variable speed electric motors, particularly 2, adjusts motor rotation speed by reciprocating engine speed-regulating switch 3, that is, adjusts
The speed of ice cube and concrete test block friction；Degree of injury of the ice cube to concrete for hydraulic structure under test differentiated friction speed.
Embodiment 3
Embodiment 3 is different only in that with embodiment 1:
Ice bank sliding support 4 is auxiliarily fixed concrete test block while limiting the height and glide direction of annular Low-temperature Ice slot 5；
The ice bank sliding support 4 includes vertical bar and cross bar, and vertical bar is welded on the main body bottom plate 1 close to 12 two sides of test block hold-down support
On to play the role of being auxiliarily fixed test block 14, cross bar is slideway, and limitation limits height and the sliding side of annular Low-temperature Ice slot 5
To.
Embodiment 4
Embodiment 4 is different only in that with embodiment 1:
The toroidal cryogenic ice bank 5 is made of outer tank body, inner tank body, is formed coolant liquid between interior outer tank body and is recycled interlayer, and
5 height of toroidal cryogenic ice bank is greater than the overlapping height of ice cube and counterweight 16, and the toroidal cryogenic ice bank 5 is made of stainless steel to pass
Pass low temperature.
Embodiment 5
Embodiment 5 is different only in that with embodiment 1:
7 lowest refrigerating temperature of cryogenic thermostat water-bath is subzero 30 degree, and control essence is reached for ± 0.1 degree, can basis
Temperature are arranged in the climatic conditions in difference simulation area, and strict control test variable increases the accuracy of test result, simultaneously
The thermal energy for reducing test block temperature and friction generation influences ice cube hardness bring.
Embodiment 6
Embodiment 6 is different only in that with embodiment 1:
The counterweight 16 is made of 25mm steel plate, and every piece of weight 1kg, device configuration has muti-piece counterweight；It can be to when test
The contact pressure for placing different number of counterweight adjustment ice cube and test block in the toroidal cryogenic ice bank 5 above ice cube, to adjust
Frictional force size between whole ice cube and test block 14.
Disclosed above is only a specific embodiment of the utility model, and still, the utility model embodiment is not office
It is limited to this, the changes that any person skilled in the art can think of should all fall into the protection scope of the utility model.
Claims (9)
1. a kind of concrete anti-ice abrasion test device, it is characterised in that: including main body bottom plate and cryogenic thermostat water-bath:
Main body bottom plate is provided on the main body bottom plate
The fixed bracket of reciprocating engine, reciprocating engine speed-regulating switch, reciprocating engine, the reciprocating engine includes variable speed electric motors, particularly, eccentric rod, push-and-pull
Bar, reciprocating lever；The variable speed electric motors, particularly, motor speed-regulating switch, motor fixed rack are fixedly installed on the main body bottom plate, institute
It states variable speed electric motors, particularly end cap to be fixed on inside motor fixed rack preformed hole, the rotation axis of variable speed electric motors, particularly is sequentially connected across preformed hole
Eccentric rod, push-pull rod, reciprocating lever；Reciprocating lever is fixed on the fixed bracket of reciprocating engine by the fixed bracket slide of reciprocating lever；
Test block hold-down support, the test block hold-down support are fixedly installed on the main body bottom plate and try for fixing concrete
Temperature control plate is tiled to maintain concrete test block upper surface not freeze in block, told test block hold-down support surface；
Ice bank sliding support and toroidal cryogenic ice bank, told toroidal cryogenic ice bank is slidably fixed on ice bank sliding support and energy
Constrain ice cube sliding friction concrete test block；
Counterweight, the counterweight are placed on main body bottom plate, counterweight are placed in toroidal cryogenic ice bank above ice cube when test, are led to
Cross frictional force between change contact pressure size adjustment ice cube and concrete test block；
And
Cryogenic thermostat water-bath, the cryogenic thermostat water-bath are connected to the coolant liquid of toroidal cryogenic ice bank circulation interlayer to control
Temperature around ice cube.
2. concrete anti-ice abrasion test device according to claim 1, it is characterised in that: the reciprocating engine is equipped with reciprocal
Machine speed-regulating switch is to test the anti-ice polishing machine of concrete under differentiated friction speed.
3. concrete anti-ice abrasion test device according to claim 2, it is characterised in that: the reciprocating engine uses speed change
Motor adjusts motor rotation speed by reciprocating engine speed-regulating switch, that is, adjusts the speed of ice cube and concrete test block friction；Test
Degree of injury of the ice cube to concrete for hydraulic structure under differentiated friction speed.
4. concrete anti-ice abrasion test device according to claim 1, it is characterised in that: the variable speed electric motors, particularly bearing with
The eccentric rod is fixedly connected, and the eccentric rod is hinged with the push-pull rod, and the push-pull rod is hinged with the reciprocating lever.
5. concrete anti-ice abrasion test device according to claim 1, it is characterised in that: the ice bank sliding support is auxiliary
It helps fixing concrete test block while limiting the height and glide direction of annular Low-temperature Ice slot；The ice bank sliding support includes vertical bar
And cross bar, vertical bar are welded on the main body bottom plate close to test block hold-down support two sides to play the role of that test block is auxiliarily fixed,
Cross bar is slideway, and limitation limits the height and glide direction of annular Low-temperature Ice slot.
6. concrete anti-ice abrasion test device according to claim 1, it is characterised in that: the toroidal cryogenic ice bank by
Outer tank body, inner tank body form, and form coolant liquid between interior outer tank body and recycle interlayer, and toroidal cryogenic ice bank height is greater than ice cube and weight
The overlapping height of code；The toroidal cryogenic ice bank is made of stainless steel to transmit low temperature.
7. concrete anti-ice abrasion test device according to claim 1, it is characterised in that: the test block hold-down support is equal
Including firm banking and two fixed angles bracing members, each fixed angles bracing members are fixedly connected on the body base,
A nut is equipped on one fixed angles bracing members, the nut inner thread is connected with a press bolt.
8. concrete anti-ice abrasion test device according to claim 1, it is characterised in that: the cryogenic thermostat water-bath is most
Low cryogenic temperature is subzero 30 degree, and control precision is reached for ± 0.1 degree.
9. concrete anti-ice abrasion test device according to claim 1, it is characterised in that: the counterweight is by 25mm steel plate
It is made, every piece of weight 1kg, device configuration has muti-piece counterweight；It can be put above ice cube into the toroidal cryogenic ice bank when test
The contact pressure of different number of counterweight adjustment ice cube and test block is set, so as to adjust frictional force size between ice cube and test block.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821669185.5U CN209327148U (en) | 2018-09-28 | 2018-09-28 | Concrete anti-ice abrasion test device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085080A (en) * | 2018-09-28 | 2018-12-25 | 内蒙古工业大学 | Concrete anti-ice abrasion test device and test method |
| CN112161889A (en) * | 2020-08-28 | 2021-01-01 | 鞍钢集团北京研究院有限公司 | Device and method for testing seawater and sea ice mixture abrasion resistance of steel |
| CN113281208A (en) * | 2021-05-12 | 2021-08-20 | 桃源县水电工程建设有限责任公司 | Concrete ice water erosion resistance performance test device |
-
2018
- 2018-09-28 CN CN201821669185.5U patent/CN209327148U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085080A (en) * | 2018-09-28 | 2018-12-25 | 内蒙古工业大学 | Concrete anti-ice abrasion test device and test method |
| CN109085080B (en) * | 2018-09-28 | 2023-10-27 | 内蒙古工业大学 | Concrete ice-wear-resistant test device and test method |
| CN112161889A (en) * | 2020-08-28 | 2021-01-01 | 鞍钢集团北京研究院有限公司 | Device and method for testing seawater and sea ice mixture abrasion resistance of steel |
| CN113281208A (en) * | 2021-05-12 | 2021-08-20 | 桃源县水电工程建设有限责任公司 | Concrete ice water erosion resistance performance test device |
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