CN109085080B - Concrete ice-wear-resistant test device and test method - Google Patents
Concrete ice-wear-resistant test device and test method Download PDFInfo
- Publication number
- CN109085080B CN109085080B CN201811195208.8A CN201811195208A CN109085080B CN 109085080 B CN109085080 B CN 109085080B CN 201811195208 A CN201811195208 A CN 201811195208A CN 109085080 B CN109085080 B CN 109085080B
- Authority
- CN
- China
- Prior art keywords
- ice
- concrete
- test block
- temperature
- test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 156
- 238000010998 test method Methods 0.000 title claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000005299 abrasion Methods 0.000 claims abstract description 21
- 239000000110 cooling liquid Substances 0.000 claims abstract description 20
- 239000011229 interlayer Substances 0.000 claims abstract description 10
- 230000003628 erosive effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000001133 acceleration Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 22
- 238000011056 performance test Methods 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 241001364889 Helius Species 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a concrete ice abrasion resistance performance test device, which comprises a main body bottom plate and a low-temperature constant-temperature water bath. The main body bottom plate is provided with a test block fixing support and an ice groove sliding support, an annular low-temperature ice groove is fixed on the ice groove sliding support in a sliding mode, the annular low-temperature water groove consists of an outer groove body and an inner groove body, and a cooling liquid circulation interlayer is formed between the inner groove body and the outer groove body. The main body bottom plate is provided with a reciprocating machine, a reciprocating machine speed regulating switch and a reciprocating machine fixing bracket; the reciprocating machine consists of a variable speed motor, an eccentric rod, a push-pull rod and a reciprocating rod, wherein the rotating shaft of the variable speed motor is connected with the eccentric rod, the eccentric rod is connected with the push-pull rod, the push-pull rod is connected with the reciprocating rod, the reciprocating rod is connected with an annular low-temperature ice tank, and the annular low-temperature water tank is connected with a low-temperature constant-temperature water bath. The test device and the test method can be used for more accurately testing the ice abrasion resistance of the concrete.
Description
Technical Field
The invention relates to the technical field of concrete tests, in particular to a device and a method for testing ice abrasion resistance of concrete.
Background
Slush refers to the phenomenon in which ice cubes flow together with river water before the river is frozen. In the global cold region, the problem of slush accompanying winter season is inevitable. Sea ice can act on bridges, wharfs, lighttowers and oil platforms in ocean engineering, and fresh water ice can strike the upstream surfaces of concrete dams of reservoirs, canals and river piers. The flowing ice floats on the water surface to generate kinetic energy and impact and friction on the hydraulic building, so that the surface of the concrete is abraded, the long-term accumulated ice friction damage can cause the structural degradation of the hydraulic building, and the durability and the safety of the hydraulic building are reduced. Therefore, in order to ensure the service performance and the service life of the hydraulic engineering in the severe cold region, the performance of the concrete for resisting ice abrasion needs to be evaluated and tested.
At present, some test devices aimed at resisting ice abrasion and consumption are mainly divided into two types, one is that the U.S. and Japanese respectively invent an ice grinder with a rotary disk, and ice cubes are contacted with a rotating concrete sample for test, and the device is easy to cause uneven load of the sample, and the test device is oversized and high in cost. The other is to carry out the sliding test of ice-concrete by using a shear box device according to the design of the soil mechanics experiment, and the device is simple but has the following defects in the operation process: (1) The temperature in the laboratory is required to simulate the exposure condition of a real concrete structure, the laboratory requirement is high, and the test cost is too high; (2) In order to avoid ice growth on the concrete surface during the test, the concrete needs to be partially heated, which is easy to cause the hardness of ice cubes to change and influence the result of ice abrasion. The various national tests were carried out under different test equipment and focused on different parameters (wear method, contact pressure, temperature, ice drift velocity), the test results from different studies were not well correlated and the results of the study could not be referenced.
Disclosure of Invention
The invention aims to provide a device and a method for testing ice abrasion resistance of concrete, which are used for solving the problems of the prior art, and researching the ice abrasion resistance of the concrete under different climatic conditions and water flow rates by changing test temperature and ice kinetic energy.
In order to achieve the above object, the present invention provides the following solutions:
the invention discloses a concrete ice wear resistance performance test device, which comprises a main body bottom plate, a reciprocating machine speed regulating switch, a machine-passing fixing support, a test block fixing support, an ice groove sliding support, an annular low-temperature ice groove and a low-temperature water bath, wherein the reciprocating machine comprises a variable speed motor, an eccentric rod, a push-pull rod and a reciprocating rod; the reciprocating rod is fixed on the reciprocating machine fixing bracket in a sliding way through the reciprocating rod fixing bracket; the test block fixing support is fixedly arranged on the main body support and used for fixing a concrete test block, and a temperature control plate is paved on the surface of the test block fixing support to keep the upper surface of the concrete test block from icing; the annular low-temperature ice groove is fixed on the ice groove sliding support in a sliding manner and can restrict ice cubes to slide, and the concrete test block is rubbed; the weight is placed on the main body bottom plate, the weight is placed above the ice blocks in the annular low-temperature ice tank during test, and the friction force between the ice blocks and the concrete test block is adjusted by changing the contact pressure; the cryostat water bath is communicated with the cooling liquid circulation interlayer of the annular cryogenic ice tank so as to control the temperature around the ice cubes.
Preferably, the reciprocator is provided with a reciprocator speed regulating switch to test the ice abrasion resistance of the concrete at different friction speeds.
The preferred reciprocating machine adopts variable speed motor, through the speed governing switch of reciprocating machine regulating motor rotational speed, adjusts the speed that ice-cube and concrete test block friction promptly. And testing the damage degree of ice cubes to hydraulic concrete at different friction speeds.
Preferably, the variable speed motor bearing is fixedly connected with the eccentric rod, the eccentric rod is hinged with the push-pull rod, and the push-pull rod is hinged with the reciprocating rod.
Preferably, the ice groove sliding support assists in fixing the concrete test block and simultaneously limits the height and the sliding direction of the annular low-temperature ice groove. The ice groove sliding support comprises a vertical rod and a cross rod, wherein the two sides of the vertical rod, which are close to the test block fixing support, are welded on the main body bottom plate to play a role in assisting in fixing the test block, and the cross rod is a slideway for limiting the height and the sliding direction of the annular low-temperature ice groove.
Preferably, the reciprocating machine comprises a motor speed regulating switch to test the ice abrasion resistance of the concrete at different friction speeds.
Preferably, the variable speed motor bearing is fixedly connected with the eccentric rod, the eccentric rod is hinged with the push-pull rod, and the push-pull rod is hinged with the reciprocating rod.
Preferably, the ice groove sliding support assists in fixing the concrete test block and simultaneously limits the height and the sliding direction of the annular low-temperature ice groove. The ice groove sliding support comprises a vertical rod and a cross rod, wherein the two sides of the vertical rod, which are close to the test block fixing support, are welded on the main body bottom plate to play a role in assisting in fixing the test block, and the cross rod is a slideway for limiting the height and the sliding direction of the annular low-temperature ice groove.
Preferably, the annular low-temperature water tank consists of an outer tank body and an inner tank body, a cooling liquid circulation interlayer is formed between the inner tank body and the outer tank body, and the height of the annular low-temperature water tank is larger than the superposed height of the ice blocks and the weights. The annular low-temperature water tank is made of stainless steel to transfer low temperature.
Preferably, the test block fixing support comprises a fixing base and two fixing angle steel supports, each fixing angle steel support is fixedly connected to the main body base, one fixing angle steel support is provided with a nut in a penetrating mode, and the nut is internally connected with a pressing bolt in a threaded mode.
Preferably, the lowest refrigeration temperature of the low-temperature constant-temperature water bath is minus 30 ℃, the control precision is +/-0.1 ℃, the temperature can be set according to the climate conditions of different simulation areas, the test variable is strictly controlled, the accuracy of the test result is improved, and meanwhile, the influence of the temperature of a test block and the heat energy generated by friction on the hardness of ice cubes is reduced.
Preferably, the weights are made of 25mm steel plates, each weighing 1kg, and the device is provided with a plurality of weights. During the test, weights with different numbers can be placed above the ice blocks in the annular low-temperature ice tank to adjust the contact pressure of the ice blocks and the test blocks, so that the friction force between the ice blocks and the test blocks is adjusted.
The invention also provides a test method for testing the ice abrasion resistance of the concrete by using the test device, which comprises the following steps:
step one: taking out the well-maintained concrete test block, performing appearance observation, and recording the mass M of the concrete test block 1 And measuring the dynamic thickness h of the concrete test block 1 Performing super-depth-of-field three-dimensional scanning on the concrete test block to obtain an image T 1 ；
Step two: fixing a concrete test block on the test block fixing support, sequentially overlapping ice cubes and weights, putting the ice cubes and weights into the annular low-temperature ice tank, and recording the mass G of the ice cubes 1 Weight mass G 2 ；
Starting the motor speed regulating switch and the low-temperature constant-temperature water bath, introducing cooling liquid into the cooling liquid circulation interlayer, and continuously refrigerating the cooling liquid by using the low-temperature constant-temperature water bath so as to keep the cooling liquid in the cooling liquid circulation interlayer in a stable low-temperature state; the ice blocks reciprocate on the concrete test block under the drive of the reciprocating machine to rub;
step four: after reaching the erosion path, closing the motor speed regulation switch, ending the test, taking out the concrete test block, and erasing the surface moisture of the concrete test block to weigh and record the weight M 2 And the thickness h of the concrete block is measured 2 Performing super-depth three-dimensional scanning on the concrete test block again to obtain an image T 2 ；
Step five: test data processing: mass loss rate Δw= (M 1 -M 2 )/M 1 X 100%, relative thickness loss rate Δh= (h) 1 -h 2 ) X 100%, friction force f=μ (G at any time 1 +G 2 ) g, whereinh is the height of the ice cubes, g is the gravitational acceleration of the test site. Analyzing the damage condition of the test block according to the relative thickness loss rate delta h, and comparing the super depth image T before and after the erosion test 1 And T, observing the external damage condition, wherein the smaller the mass loss rate delta W and the smaller the relative thickness loss rate delta h are under the action of the same friction force F, the better the ice abrasion resistance of the concrete test block is.
Compared with the prior art, the invention has the following technical effects: (advantages and positive effects of the invention created over the prior art.)
According to the concrete ice friction resistance performance test device, the reciprocating rod of the reciprocating machine has a moving length of 15cm-20cm, the test block has a length of 40cm, the effective friction length of ice cubes and the test block is smaller than the test block length, and damage to the test block due to friction can be effectively compared; spreading a silica gel electric heating plate constant temperature heating plate on the surface of the test block fixing support, and heating the lower surface of the test block at constant temperature during test, so that water melted on the upper surface of the ice friction test block can not freeze through temperature transmission; fixing a concrete test block on a test block fixing support, placing ice cubes into an annular low-temperature ice groove, enabling the bottom ends of the ice cubes to contact with the upper surface of the test block, communicating the annular low-temperature ice groove with a low-temperature constant-temperature water bath, and adjusting the environmental temperature; the temperature of the refrigerating fluid in the annular low-temperature water tank can be regulated by regulating the refrigerating temperature of the low-temperature constant-temperature water bath, namely, the temperature of the surrounding environment of ice cubes is regulated, the friction speed of the ice cubes and the test block is changed by regulating the running speed of the reciprocating machine, the contact pressure between the ice cubes and the test block is changed by regulating the weight mass, and the friction force is regulated by the contact pressure, so that the friction damage of ice at different temperatures, different speeds and different kinetic energies to hydraulic concrete is simulated more accurately; furthermore, the test device and the test method for evaluating the ice friction resistance of the concrete provide effective data support for the degree of ice flow friction damage of the concrete in actual engineering during flood.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an isometric view of a concrete ice abrasion resistance performance test device provided by the invention;
FIG. 2 is a schematic structural view of a test piece fixing support of the concrete ice abrasion resistance performance test device provided by the invention;
in the figure: 1-a main body base plate; 2-a variable speed motor; 3-speed regulating switch of the reciprocating machine; 4-ice groove sliding brackets; 5-an annular low-temperature ice tank; 6-piping; 7-low temperature water bath; 8-a reciprocator fixing bracket; 9-eccentric rod; 10-a push-pull rod; 11-a reciprocating bar holder; 12-a test block fixing support; 13-a reciprocating lever; 14-test block; 15-a reciprocator; 16-weight; 17-a fixed base; 18-fixing angle steel supports; 19-a nut; 20-jacking bolt
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a device and a method for testing ice abrasion resistance of concrete, which are used for solving the problems in the prior art, more truly simulating the friction condition of Jiang Heliu on hydraulic concrete in cold areas, carrying out ice-concrete test on the concrete and accurately testing the ice abrasion resistance of the concrete.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
In a specific embodiment of the invention, as shown in fig. 1, the concrete ice-abrasion resistance performance test device comprises a main body bottom plate 1, a reciprocating machine 15, a test block fixing support 12, an ice groove sliding support 4, an annular low-temperature ice groove 5 and a low-temperature water bath 7, wherein the main body bottom plate 1 is provided with: the reciprocating machine 15 comprises a variable speed motor 2, a reciprocating machine speed regulating switch 3, a reciprocating machine fixing support 8, an eccentric rod 9, a push-pull rod 10 and a reciprocating rod 13, wherein the variable speed motor 2, the reciprocating machine speed regulating switch 3 and the reciprocating machine fixing support 8 are fixedly arranged on the main body bottom plate 1, an end cover of the variable speed motor is fixed in a reserved hole of the motor fixing support, a bearing of the variable speed motor penetrates through the reserved hole to be sequentially connected with the eccentric rod 9, the push-pull rod 10 and the reciprocating rod 13, and the reciprocating rod is fixedly fixed on the reciprocating machine fixing support 8 in a sliding manner through the reciprocating rod fixing support 11; the test block fixing support 12 is fixedly arranged on the right side of the main body support 1 and is used for fixing a concrete test block 14, and a temperature control plate 13 is paved on the surface of the test block fixing support 12 to keep the upper surface of the concrete test block 14 from freezing; the annular low-temperature ice groove 5 is fixedly arranged on the ice groove sliding support 4 in a sliding manner and can restrict the ice blocks to slide and rub the test blocks; the cryostat water bath 7 is communicated with the cooling liquid circulation interlayer of the annular cryogenic ice tank 5 to control the temperature around the ice cubes.
The test method for testing the ice wear resistance of the concrete by using the test device for the ice wear resistance of the concrete in the embodiment comprises the following steps:
step one: taking out the well-maintained concrete test block, performing appearance observation, and recording the mass M of the concrete test block 1 And measuring the dynamic thickness h of the concrete test block 1 Performing super-depth-of-field three-dimensional scanning on the concrete test block to obtain an image T 1 ；
Step two: fixing a concrete test block on the test block fixing support, sequentially overlapping ice cubes and weights, putting the ice cubes and weights into the annular low-temperature ice tank, and recording the mass G of the ice cubes 1 Weight mass G 2 ；
Starting the motor speed regulating switch and the low-temperature constant-temperature water bath, introducing cooling liquid into the cooling liquid circulation interlayer, and continuously refrigerating the cooling liquid by using the low-temperature constant-temperature water bath so as to keep the cooling liquid in the cooling liquid circulation interlayer in a stable low-temperature state; the ice blocks reciprocate on the concrete test block under the drive of the reciprocating machine to rub;
step four: after reaching the erosion path, closing the motor speed regulation switch, ending the test, taking out the concrete test block, and erasing the surface moisture of the concrete test block to weigh and record the weight M 2 And the thickness h of the concrete block is measured 2 Performing super-depth three-dimensional scanning on the concrete test block again to obtain an image T 2 ；
Step five: test data processing: mass loss rate Δw= (M 1 -M 2 )/M 1 X 100%, relative thickness loss rate Δh= (h) 1 -h 2 ) X 100%, friction force f=μ (G at any time 1 +G 2 ) g, whereinh is the height of the ice cubes, g is the gravitational acceleration of the test site. Analyzing the damage condition of the test block according to the relative thickness loss rate delta h, and comparing the super depth image T before and after the erosion test 1 And T, observing the external damage condition, wherein the smaller the mass loss rate delta W and the smaller the relative thickness loss rate delta h are under the action of the same friction force F, the better the ice abrasion resistance of the concrete test block is.
According to the concrete ice-abrasion resistance performance test device, the reciprocating machine 15 adopts the variable speed motor 2, so that the friction rate can be changed, and ice-concrete friction experiments under different friction rates can be carried out; the friction force can be changed by changing weights with different masses, and ice-concrete friction tests under different friction forces are carried out; the low-temperature and constant-temperature water bath 7 can adjust the refrigerating temperature and keep constant temperature, and can reduce the temperature of the cooling liquid to minus 30 ℃ at the minimum, thereby providing temperature guarantee for the ice-concrete friction experiment at different temperatures in the annular erosion water tank. The reciprocating rod of the reciprocating machine has a moving length of 15cm-20cm, the length of the test block is 40cm, and the effective friction length of the ice blocks and the test block is smaller than the length of the test block, so that the damage of friction to the test block can be effectively compared; spreading a silica gel electric heating plate constant temperature heating plate on the surface of the test block fixing support, and heating the lower surface of the test block at constant temperature during test, so that water melted on the upper surface of the ice friction test block can not freeze through temperature transmission; fixing a concrete test block on a test block fixing support, placing ice cubes into an annular low-temperature ice groove, enabling the bottom ends of the ice cubes to contact with the upper surface of the test block, communicating the annular low-temperature ice groove with a low-temperature constant-temperature water bath, and adjusting the environmental temperature; the temperature of the refrigerating fluid in the annular low-temperature water tank can be regulated by regulating the refrigerating temperature of the low-temperature constant-temperature water bath, namely, the temperature of the surrounding environment of ice cubes is regulated, the friction speed of the ice cubes and the test block is changed by regulating the running speed of the reciprocating machine, the contact pressure between the ice cubes and the test block is changed by regulating the weight mass, and the friction force is regulated according to the contact pressure, so that the friction damage of ice at different temperatures, different speeds and different kinetic energies to hydraulic concrete is simulated more accurately; furthermore, the test device and the test method for evaluating the ice friction resistance of the concrete provide effective data support for the degree of ice flow friction damage of the concrete in actual engineering during flood. The ice speed control precision of the friction concrete test piece is high, and the condition of the ice friction test piece under different flow speed conditions is met. The test device for the ice friction resistance of the concrete can quantitatively test ice-concrete friction tests at different friction rates and different temperatures, has the advantages of strong parameter controllability, high precision, high test efficiency, labor saving, labor intensity reduction of test staff, reduction of the limit of a test site, and convenience for indoor test, so that the ice friction resistance environment of hydraulic concrete in cold areas can be simulated more truly, the high-speed flowing ice friction test can be carried out on the concrete, and the ice friction resistance of the concrete can be tested accurately. The friction rate, the friction temperature and the friction time of the friction test can be set correspondingly according to the climate of the simulated region. The invention uses 100mm x 400mm standard test pieces for test, and can be compared with other performance test tests for evaluation.
In another embodiment of the present invention, as shown in fig. 2, the test block fixing support 12 includes a fixing base 17 and two fixing angle steel supports 18, each fixing angle steel support 18 is fixedly connected to the fixing base 17, the fixing base 17 is fixedly connected to the surface of the main body base plate 1, a nut 19 is threaded on one fixing angle steel support 18, and a pressing bolt 20 is connected to the nut 19 through internal threads. When the concrete test block 14 is fixed, the concrete test block 14 is placed between the two fixed angle steel supports 18, the jacking bolts 20 are twisted to bear against the concrete test block 14, and the jacking bolts 20 are continuously twisted until the concrete test block 14 is fixed.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (1)
1. A test method for testing ice abrasion resistance of concrete is characterized by comprising the following steps: the method comprises the following steps:
step one: taking out the well-maintained concrete test block, performing appearance observation, and recording the mass M of the concrete test block 1 And measuring the dynamic thickness h of the concrete test block 1 Performing super-depth-of-field three-dimensional scanning on the concrete test block to obtain an image T 1 ；
Step two: fixing the concrete test block on a test block fixing support, sequentially overlapping ice cubes and weights in an annular low-temperature ice tank, and recording the mass G of the ice cubes 1 Weight mass G 2 ；
Starting a speed regulation switch of the reciprocating machine and a low-temperature constant-temperature water bath, introducing cooling liquid into the cooling liquid circulation interlayer, and continuously refrigerating the cooling liquid by using the low-temperature constant-temperature water bath to keep the cooling liquid in the cooling liquid circulation interlayer in a stable low-temperature state; the ice blocks reciprocate on the concrete test block under the drive of the reciprocating machine and rub;
step four: after reaching the erosion path, closing the reciprocating machine to speed up, ending the test, taking out the concrete test block, and erasing the surface moisture of the concrete test block to weigh and record the weight M 2 And the thickness h of the concrete block is measured 2 Performing super-depth three-dimensional scanning on the concrete test block again to obtain an image T 2 ；
Step five: test data processing: mass loss rate Δw= (M 1 -M 2 )/M 1 X 100%, relative thickness loss rate Δh= (h) 1 -h 2 ) X 100%, friction force f=μ (G at any time 1 +G 2 ) g, whereinh is the height of ice cubes, g is the gravitational acceleration of the place where the test is, the damage condition of the test block is analyzed according to the relative thickness loss rate delta h, and the super depth-of-field image T before and after the erosion test is compared 1 And T 2 And observing the external damage condition, wherein the smaller the mass loss rate delta W and the smaller the relative thickness loss rate delta h are under the action of the same friction force F, the better the ice abrasion resistance of the concrete test block is.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811195208.8A CN109085080B (en) | 2018-09-28 | 2018-09-28 | Concrete ice-wear-resistant test device and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811195208.8A CN109085080B (en) | 2018-09-28 | 2018-09-28 | Concrete ice-wear-resistant test device and test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109085080A CN109085080A (en) | 2018-12-25 |
| CN109085080B true CN109085080B (en) | 2023-10-27 |
Family
ID=64843385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811195208.8A Active CN109085080B (en) | 2018-09-28 | 2018-09-28 | Concrete ice-wear-resistant test device and test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109085080B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738318A (en) * | 2019-02-15 | 2019-05-10 | 内蒙古工业大学 | A kind of hydraulic structure anti-current water erosion test device and its test method |
| CN110082284B (en) * | 2019-04-09 | 2021-06-25 | 中水北方勘测设计研究有限责任公司 | System and method capable of adjusting ice layer thickness and performing collapse test |
| CN110132779A (en) * | 2019-05-16 | 2019-08-16 | 中国十九冶集团有限公司 | For characterizing the three dimensional analysis method of concrete surface Scouring Characteristic |
| CN112098252A (en) * | 2020-09-21 | 2020-12-18 | 中通服咨询设计研究院有限公司 | Testing device and method for accurately describing ice abrasion degree of concrete |
| CN112098251A (en) * | 2020-09-21 | 2020-12-18 | 中通服咨询设计研究院有限公司 | Device and method for simulating coupling of freeze-thaw environment and wear performance of hydraulic concrete |
| CN112098253A (en) * | 2020-09-21 | 2020-12-18 | 中通服咨询设计研究院有限公司 | Indoor concrete ice abrasion testing device and testing method |
| CN111948032A (en) * | 2020-09-25 | 2020-11-17 | 黑龙江省水利科学研究院 | Test device and test method for simulating collision friction between water-stopping material and ice |
| CN113281208B (en) * | 2021-05-12 | 2022-03-11 | 湖南桃源水电工程建设有限公司 | Concrete ice water erosion resistance performance test device |
| CN113333345B (en) * | 2021-05-12 | 2023-04-21 | 中启胶建集团有限公司 | Concrete cleaning device for construction of recoverable water resource |
| CN113804570A (en) * | 2021-11-16 | 2021-12-17 | 中建安装集团有限公司 | Cement-based material surface detection device and detection method thereof |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6401058B1 (en) * | 1999-02-12 | 2002-06-04 | Wayne State University | Reciprocating system for simulating friction and wear |
| CN2854567Y (en) * | 2005-12-31 | 2007-01-03 | 大连海事大学 | Reciprocating high-temp high-load friction wear-out testing equipment |
| CN202119687U (en) * | 2011-06-21 | 2012-01-18 | 厦门市宏业工程建设技术有限公司 | Testing device for testing anti-flushing and abrasion-resistant performance of hydraulic concrete |
| CN103267699A (en) * | 2013-06-05 | 2013-08-28 | 浙江大学 | Reciprocating-type friction-wear testing machine and method thereof |
| RU2542612C1 (en) * | 2013-10-15 | 2015-02-20 | Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Дальневосточный Федеральный Университет" (Двфу) | Rig for ice attrition test of material specimen |
| RU2542595C1 (en) * | 2013-10-15 | 2015-02-20 | Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Дальневосточный Федеральный Университет" (Двфу) | Unit for study of material sample on abrasion with ice |
| CN104990822A (en) * | 2015-07-17 | 2015-10-21 | 合肥波林复合材料有限公司 | Reciprocating type friction wear testing machine |
| CN105571970A (en) * | 2016-02-04 | 2016-05-11 | 河南省郑州水利学校 | Concrete abrasion resistance test system and method |
| CN107101901A (en) * | 2016-02-19 | 2017-08-29 | 中国石油化工股份有限公司 | A kind of reciprocating friction abrasion test device and method |
| CN107192626A (en) * | 2017-06-22 | 2017-09-22 | 广东盖特奇新材料科技有限公司 | A kind of concrete anti-abrasion performance test apparatus and test method |
| CN206862809U (en) * | 2017-04-28 | 2018-01-09 | 霍勤(上海)汽车零部件有限公司 | The fast verification device of position limit arm fatigue wear |
| CN207263563U (en) * | 2017-09-25 | 2018-04-20 | 常裕（福州）汽车内装工业有限公司 | A kind of wear-resisting detection device of auto parts machinery |
| CN209327148U (en) * | 2018-09-28 | 2019-08-30 | 内蒙古工业大学 | Concrete anti-ice abrasion test device |
-
2018
- 2018-09-28 CN CN201811195208.8A patent/CN109085080B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6401058B1 (en) * | 1999-02-12 | 2002-06-04 | Wayne State University | Reciprocating system for simulating friction and wear |
| CN2854567Y (en) * | 2005-12-31 | 2007-01-03 | 大连海事大学 | Reciprocating high-temp high-load friction wear-out testing equipment |
| CN202119687U (en) * | 2011-06-21 | 2012-01-18 | 厦门市宏业工程建设技术有限公司 | Testing device for testing anti-flushing and abrasion-resistant performance of hydraulic concrete |
| CN103267699A (en) * | 2013-06-05 | 2013-08-28 | 浙江大学 | Reciprocating-type friction-wear testing machine and method thereof |
| RU2542612C1 (en) * | 2013-10-15 | 2015-02-20 | Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Дальневосточный Федеральный Университет" (Двфу) | Rig for ice attrition test of material specimen |
| RU2542595C1 (en) * | 2013-10-15 | 2015-02-20 | Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Дальневосточный Федеральный Университет" (Двфу) | Unit for study of material sample on abrasion with ice |
| CN104990822A (en) * | 2015-07-17 | 2015-10-21 | 合肥波林复合材料有限公司 | Reciprocating type friction wear testing machine |
| CN105571970A (en) * | 2016-02-04 | 2016-05-11 | 河南省郑州水利学校 | Concrete abrasion resistance test system and method |
| CN107101901A (en) * | 2016-02-19 | 2017-08-29 | 中国石油化工股份有限公司 | A kind of reciprocating friction abrasion test device and method |
| CN206862809U (en) * | 2017-04-28 | 2018-01-09 | 霍勤(上海)汽车零部件有限公司 | The fast verification device of position limit arm fatigue wear |
| CN107192626A (en) * | 2017-06-22 | 2017-09-22 | 广东盖特奇新材料科技有限公司 | A kind of concrete anti-abrasion performance test apparatus and test method |
| CN207263563U (en) * | 2017-09-25 | 2018-04-20 | 常裕（福州）汽车内装工业有限公司 | A kind of wear-resisting detection device of auto parts machinery |
| CN209327148U (en) * | 2018-09-28 | 2019-08-30 | 内蒙古工业大学 | Concrete anti-ice abrasion test device |
Non-Patent Citations (1)
| Title |
|---|
| 重载荷往复式摩擦磨损试验机;张逸青;;轴承(第02期);第49-52页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109085080A (en) | 2018-12-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109085080B (en) | Concrete ice-wear-resistant test device and test method | |
| CN111665121B (en) | Coarse particle material degradation test device and method considering relative humidity and freeze-thaw coupling effect | |
| Shamsutdinova et al. | Concrete-ice abrasion test with sliding ice and ice spallation | |
| CN104634685B (en) | High-cold wind-sand environment wheel rail abrasion simulation experimental device | |
| CN108956961B (en) | Device and method for testing ice water erosion resistance of concrete | |
| Harris et al. | Solifluction processes on permafrost and non‐permafrost slopes: results of a large‐scale laboratory simulation | |
| CN202133592U (en) | Direct shear apparatus for frozen soil-structure | |
| CN203798690U (en) | Device for testing frictional wear of rubber roller in varied environment | |
| CN102520126B (en) | Device for evaluating short-period snow melting performances of salt-applied snow-self melting road surface | |
| CN209327148U (en) | Concrete anti-ice abrasion test device | |
| CN105067420B (en) | A kind of evaluation method of thin-layer bituminous mixture cover durability | |
| CN201359584Y (en) | Mechanics parameters tester for roadbed material under cyclic freezing and thawing conditions | |
| CN112083025A (en) | Servo type soil body frost heaving and thawing sinking test device and test method thereof | |
| CN107655930A (en) | Frost heave parameter determinator under controllable temperature complicated boundary condition | |
| CN111474063A (en) | Cold region soil body multidirectional stress field water-heat-force coupling soil pressure testing method and device | |
| RU192382U1 (en) | Laboratory device for simulating the effects of drifting ice on concrete structures | |
| CN213398044U (en) | Testing device for accurately describing ice abrasion degree of concrete | |
| CN113588447A (en) | Frozen soil large shear apparatus and system thereof | |
| CN202372490U (en) | Testing device for short period snow melting performance of salinization matter auto snow melting road surface | |
| CN203701160U (en) | Model test device for pile foundation in frozen soil environment | |
| CN112098252A (en) | Testing device and method for accurately describing ice abrasion degree of concrete | |
| Yu et al. | Study on temperature distribution due to freezing and thawing at the Fengman concrete gravity dam | |
| CN204575475U (en) | High and cold wind sand environment wheel-rail wear and tear analogue experiment installation | |
| Duan et al. | Heat conduction with seasonal freezing and thawing in an active layer near a tower foundation | |
| CN106644922B (en) | Device and method for testing icing-inhibiting effect of salinized asphalt mixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Shuguang Inventor after: Jiang Lin Inventor after: Wang Xiaoxiao Inventor after: Yan Changwang Inventor after: Li Heng Inventor before: Wang Xiaoxiao Inventor before: Jiang Lin Inventor before: Liu Shuguang Inventor before: Yan Changwang Inventor before: Li Heng |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |