CN219996936U - Inorganic binder stable material shrinkage testing device convenient to use outdoors - Google Patents
Inorganic binder stable material shrinkage testing device convenient to use outdoors Download PDFInfo
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- CN219996936U CN219996936U CN202320112907.1U CN202320112907U CN219996936U CN 219996936 U CN219996936 U CN 219996936U CN 202320112907 U CN202320112907 U CN 202320112907U CN 219996936 U CN219996936 U CN 219996936U
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- 238000012360 testing method Methods 0.000 title claims abstract description 111
- 239000000463 material Substances 0.000 title claims abstract description 54
- 239000011230 binding agent Substances 0.000 title claims abstract description 47
- 230000001681 protective effect Effects 0.000 claims abstract description 36
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 32
- 238000007789 sealing Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000011241 protective layer Substances 0.000 claims description 5
- 238000005336 cracking Methods 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000004154 testing of material Methods 0.000 abstract description 2
- 239000011521 glass Substances 0.000 description 6
- 238000010998 test method Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000013215 result calculation Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model discloses an inorganic binder stable material shrinkage testing device convenient to use outdoors, which relates to the technical field of inorganic binder stable material testing, and comprises a shrinkage tester, a dial indicator, a protective cover and a base, wherein the protective cover is arranged on the shrinkage tester, and the base is supported at the bottom of the shrinkage tester; when the test piece is subjected to shrinkage test outdoors, the test piece is completely exposed in the natural environment, and the dial indicator arranged on the shrinkage tester can be covered by the protective cover, so that the dial indicator is protected from being damaged by natural factors such as rain and snow, the base is supported at the bottom of the shrinkage tester, the base plate is horizontally suspended, when natural wind contacts the test piece, wind flow can pass through the periphery of the base plate, the condition of wind load of the inorganic binder stabilizing material is simulated, and the shrinkage performance of the inorganic binder stabilizing material is tested under the outdoor natural environment condition.
Description
Technical Field
The utility model relates to the technical field of inorganic binder stable material testing, in particular to an inorganic binder stable material shrinkage testing device convenient to use outdoors.
Background
At present, an inorganic binder stabilizing material test in the transportation industry adopts a temperature shrinkage test method of a T0855-2009 inorganic binder stabilizing material in JTG E51-2009 of the test procedure of highway engineering inorganic binder stabilizing material, the method is suitable for measuring the shrinkage coefficient of the inorganic binder stabilizing material when the temperature is reduced, and measuring the temperature shrinkage coefficient of the inorganic binder stabilizing material under the condition that the water content is unchanged (dried), and the temperature range adopted in the test is 60 ℃ to-25 ℃.
The test method comprises the following steps: placing the formed beam-shaped test piece on a shrinkage tester after standard curing for a certain period of time, respectively adhering a thin glass sheet on two end faces of the beam-shaped test piece, placing 5 smooth metal rods under the beam-shaped test piece, preventing the test piece from being influenced by friction force on the surface of a mould in the shrinkage process, then respectively placing two dial indicators on two side plates of the shrinkage tester, and carrying out contact zeroing on the two thin glass sheets at two ends of the beam-shaped test piece. By changing the temperature stepwise, shrinkage performance of the inorganic binder stabilized material is observed at high and low temperatures.
The existing shrinkage test of the inorganic binder stable material is to perform certain condition simulation indoors to evaluate the material performance, if the material performance is tested outdoors, the material performance is easily affected by various natural environment factors, for example, the shrinkage tester is deformed or the dial indicator is damaged by rain, snow and the like due to large temperature difference, so that the test result is inaccurate; therefore, the method can not fully simulate local climates (such as rain, snow, wind, sand, strong irradiation ultraviolet rays and the like), and can not reflect the shrinkage condition of the pavement base layer after being influenced by external natural environment factors in actual engineering.
Disclosure of Invention
The utility model aims to provide the shrinkage testing device for the inorganic binder stabilizing material, which is convenient to use outdoors, solves the problems in the prior art, is not influenced by natural environment factors, and realizes the shrinkage performance testing of the inorganic binder stabilizing material under the outdoor natural environment condition.
In order to achieve the above object, the present utility model provides the following solutions:
the utility model provides an inorganic binder stable material shrinkage testing device convenient to use outdoors, which comprises a shrinkage testing instrument and a dial indicator, wherein the shrinkage testing instrument comprises a bottom plate and side plates, the bottom plate is horizontally arranged, the side plates are vertically connected to the bottom plate, fixing holes are horizontally formed in the upper parts of the side plates, fixing rods of the dial indicator can horizontally penetrate through the fixing holes and are fixed, two side plates are arranged, the two side plates are oppositely arranged, and a test piece can be placed on the bottom plate between the two side plates; the shrinkage testing device for the inorganic binder stable material convenient to use outdoors further comprises a protective cover and a base, wherein the protective cover is installed on the shrinkage testing instrument and used for covering the dial indicator, and the base is supported at the bottom of the shrinkage testing instrument and can enable the bottom plate to be horizontally suspended.
Preferably, a bolt hole is vertically formed between the top wall of the fixing hole on the side plate and the top edge of the side plate, so that the fixing rod of the dial indicator can be fixed in the fixing hole through a bolt.
Preferably, the protection cover comprises a first side wall, a top wall and a second side wall which are sequentially connected, wherein the bottom of the first side wall and the bottom of the second side wall are fixedly connected to the bottom plate, the first side wall and the second side wall are oppositely arranged, the inner side of the first side wall and the inner side of the second side wall are respectively attached to two side edges of the side plate, a gap is reserved between the inner side of the top wall and the top edge of the side plate, and the gap is used for installing the bolt;
the protective cover further comprises a sealing plate and a movable door, the sealing plate is fixedly connected to the bottom of the top wall and is close to the gap, the sealing plate is matched with the gap, the movable door is movably connected to the protective cover at an opening of the protective cover far away from the middle of the bottom plate, the protective cover can be closed or opened, and a gauge head of the dial indicator can be contained between the movable door and the side plate;
the protection covers are arranged in two, and the two protection covers are respectively covered at the two side plates of the shrinkage tester.
Preferably, the movable door is a lifting plate, a first chute is arranged at one end of the first side wall, which is far away from the middle part of the bottom plate, a second chute is arranged at one end of the second side wall, which is far away from the middle part of the bottom plate, and two side edges of the lifting plate are respectively connected with the first chute and the second chute in a sliding manner, so that the lifting plate can slide up and down.
Preferably, the base comprises a first support plate and a second support plate, wherein the first support plate and the second support plate are fixedly connected to the bottom of the bottom plate and are respectively located at two ends of the bottom plate.
Preferably, the base further comprises four leveling screw buttons, wherein two leveling screw buttons are fixedly connected to the bottom of the first support plate and the bottom of the second support plate respectively, and the leveling screw buttons are used for adjusting levelness of the bottom plate; and a level bubble is further arranged on the bottom plate.
Preferably, a limiting block is further arranged on the bottom plate, and the limiting block is fixedly connected to one side of the bottom plate and located between the two side plates.
Preferably, the shrinkage testing device for the inorganic binder stabilizing material, which is convenient to use outdoors, further comprises a plurality of smooth rods, wherein all the smooth rods can be uniformly placed between the testing test piece and the bottom plate.
Preferably, the bottom plate, the side plates and the base are all made of temperature deformation resistant materials; the protective cover is made of transparent materials; the smooth rod is made of metal.
Preferably, the bottom plate, the side plates, the base and the smooth rod are all sprayed with protective layers, and the protective layers can prevent water and cracking caused by high temperature or low temperature.
Compared with the prior art, the utility model has the following technical effects:
the utility model provides an inorganic binder stabilizing material shrinkage testing device convenient to use outdoors, which comprises a shrinkage testing instrument, a dial indicator, a protective cover and a base, wherein when the shrinkage testing is carried out on a testing piece outdoors, the testing piece is completely exposed in a natural environment, the dial indicator arranged on the shrinkage testing instrument can be covered by the protective cover to play a role of protecting the dial indicator from being damaged by natural factors such as rain and snow, the base is supported at the bottom of the shrinkage testing instrument, a bottom plate is horizontally suspended, and when natural wind contacts the testing piece, wind current can pass through the periphery of the base to simulate the condition of bearing wind load of the inorganic binder stabilizing material, so that the shrinkage performance of the inorganic binder stabilizing material is tested under the outdoor natural environment condition, the strain change rule of the inorganic binder stabilizing material under various environment conditions is observed through the long-term repeated action of the testing piece, and the shrinkage condition of a road surface under the same weather condition in actual engineering is further reflected.
Drawings
In order to more clearly illustrate the embodiments of the present utility model 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 utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an inorganic binder stabilizing material shrinkage test device (dial indicator not shown, and protective cover not connected with shrinkage tester) for outdoor use;
FIG. 2 is a front view of the shrinkage tester tool and base provided by the present utility model;
FIG. 3 is a top view of the shrinkage tester tool and base provided by the present utility model;
FIG. 4 is a left side view of the shrinkage tester tool and base provided by the present utility model;
FIG. 5 is a front view of a protective cover (right side protective cover in FIG. 1) provided by the present utility model;
FIG. 6 is a top view of a protective cover (right protective cover in FIG. 1) provided by the present utility model;
FIG. 7 is a left side view of a protective cover (right side protective cover in FIG. 1) provided by the present utility model;
in the figure: the 1-shrinkage tester comprises a 1-shrinkage tester, a 11-bottom plate, a 12-side plate, a 13-fixing hole, a 14-bolt hole, a 15-limiting block, a 2-protection cover, a 21-first side wall, a 22-top wall, a 23-second side wall, a 24-sealing plate, a 25-lifting plate, a 3-base, a 31-supporting plate, a 32-leveling screw and a 4-smooth metal rod.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model aims to provide an inorganic binder stable material shrinkage testing device which is convenient to use outdoors, solves the problems existing in the prior art, is not influenced by natural environment factors, and realizes the shrinkage performance testing of the inorganic binder stable material under the outdoor natural environment condition.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1-7, the utility model provides an inorganic binder stable material shrinkage testing device convenient for outdoor use, which comprises a shrinkage testing instrument 1 and a dial indicator, wherein the shrinkage testing instrument 1 comprises a bottom plate 11 and side plates 12, the bottom plate 11 is horizontally arranged, the side plates 12 are vertically connected to the bottom plate 11, fixing holes 13 are horizontally formed in the upper parts of the side plates 12, fixing rods of the dial indicator can horizontally penetrate through the fixing holes 13 and are fixed, two side plates 12 are arranged, the two side plates 12 are oppositely arranged, and a test piece can be placed on the bottom plate 11 between the two side plates 12; the shrinkage testing device for the inorganic binder stabilizing material convenient to use outdoors further comprises a protective cover 2 and a base 3, wherein the protective cover 2 is arranged on the shrinkage tester 1 and used for covering a dial indicator, and the base 3 is supported at the bottom of the shrinkage tester 1 and can enable a bottom plate 11 to be horizontally suspended; when the test piece is subjected to shrinkage test outdoors, the test piece is completely exposed in the natural environment, and the dial indicator on the shrinkage tester 1 can be covered by the protective cover 2, so that the dial indicator is protected from being damaged by natural factors such as rain and snow, the base 3 is supported at the bottom of the shrinkage tester 1, the bottom plate 11 is horizontally suspended, and when natural wind contacts the test piece, wind flow can pass through the periphery of the base, and the condition of wind load of the inorganic binder stabilizing material is simulated, thereby realizing the shrinkage performance of the test inorganic binder stabilizing material under the outdoor natural environment condition.
In this embodiment, a bolt hole 14 is vertically formed between the top wall 22 of the fixing hole 13 on the side plate 12 and the top edge of the side plate 12, so that the fixing rod of the dial indicator can be fixed in the fixing hole 13 through a bolt; specifically, two fixed holes 13 are formed in each side plate 12, the two fixed holes 13 are horizontally arranged side by side, a bolt hole 14 is formed in each fixed hole 13, when the dial indicator is installed on each side plate 12, the head of the dial indicator faces outwards during installation, a fixing rod of the dial indicator is horizontally inserted into the fixed hole 13, and then a bolt is screwed into the bolt hole 14 from top to bottom to fix the fixing rod.
In this embodiment, as shown in fig. 5-7, the protection cover 2 includes a first side wall 21, a top wall 22 and a second side wall 23 that are sequentially connected, the bottom of the first side wall 21 and the bottom of the second side wall 23 are fixedly connected to the bottom plate 11, the first side wall 21 and the second side wall 23 are oppositely arranged, the inner side of the first side wall 21 and the inner side of the second side wall 23 are respectively attached to two sides of the side plate 12, a gap is left between the inner side of the top wall 22 and the top edge of the side plate 12, and the gap is used for installing a bolt;
the protective cover 2 further comprises a sealing plate 24 and a movable door, the sealing plate 24 is fixedly connected to the bottom of the top wall 22 and is close to the gap, the sealing plate 24 is matched with the gap, the movable door is movably connected to the protective cover 2 at an opening in the middle of the protective cover 2 far away from the bottom plate 11, the movable door can close or open the protective cover 2, the installation of the dial indicator is facilitated, and the gauge head of the dial indicator can be contained between the movable door and the side plate 12; specifically, the movable door of the present embodiment is a lifting plate 25, a first chute is disposed at one end of the first side wall 21 far away from the middle of the bottom plate 11, a second chute is disposed at one end of the second side wall 23 far away from the middle of the bottom plate 11, and two sides of the lifting plate 25 are slidably connected with the first chute and the second chute, so that the lifting plate 25 can slide up and down;
the protection cover 2 of this embodiment is provided with two, and two protection covers 2 cover respectively in two curb plates 12 departments of shrink tester utensil 1 to, protection cover 2 is transparent material, is convenient for read the reading of amesdial.
In this embodiment, the base 3 includes a first support plate 31 and a second support plate 31 with a height of 50mm, and the first support plate 31 and the second support plate 31 are welded at the bottom of the bottom plate 11 and are respectively located at two ends of the bottom plate 11.
Further, the base 3 further comprises four leveling screw buttons 32, the bottom of the first support plate 31 and the bottom of the second support plate 31 are respectively and fixedly connected with two leveling screw buttons 32, and the leveling screw buttons 32 are used for adjusting the levelness of the bottom plate 11; the bottom plate 11 is also provided with a level bubble, and when the device is used, the shrinkage tester 1 can be leveled by matching the leveling screw 32 with the level bubble, so that the sliding phenomenon of a test piece caused by the uneven outdoor test ground is prevented, and the test result is more accurate.
Further, a limiting block 15 is further arranged on the bottom plate 11, and the limiting block 15 is fixedly connected to one side of the bottom plate 11 and is positioned between the two side plates 12; in this embodiment, two limiting blocks 15 are welded on one side of the bottom plate 11, and when in use, the side of the shrinkage tester 1 provided with the limiting blocks 15 is placed in the downwind direction.
The shrinkage testing device for the inorganic binder stabilizing material, which is convenient to use outdoors, of the embodiment further comprises a plurality of smooth metal rods 4, wherein all the smooth metal rods 4 can be uniformly arranged between the test piece and the bottom plate 11, so that friction between the test piece and the bottom plate 11 during shrinkage is reduced.
In this embodiment, the bottom plate 11, the side plate 12 and the base 3 are all made of materials resistant to temperature deformation, specifically, the materials of the bottom plate 11, the side plate 12 and the base 3 are preferably invar, the deformation of the materials along with the temperature is extremely small, the materials are suitable for manufacturing components with strict requirements on temperature deformation, and protective layers are sprayed on the bottom plate 11, the side plate 12, the base 3 and the smooth metal rod 4, and can prevent water and cracking caused by high temperature or low temperature.
The use process of this embodiment is as follows:
1. preparation before testing
The test instruments used in the shrinkage test method of the inorganic binder stabilizing material in the natural environment are prepared as follows: the shrinkage testing device for the inorganic binder stable material, which is convenient for outdoor use, comprises a supporting angle (thin glass sheet), strain rubber (502 rubber), an electronic balance and a vernier caliper.
2. Test piece molding
And (3) forming and curing the test piece according to the manufacturing mode (beam test) of the T0844-2009 inorganic binder stabilizing material test piece in JTG E51-2009 of the test procedure of the inorganic binder stabilizing material of highway engineering.
3. Test procedure
(1) After the curing is finished, the test specimen is put into a baking oven at 105 ℃ to be baked for 10 to 12 hours to constant quantity, so that free water does not exist in the test specimen, and the mass m of the test specimen is weighed by an electronic balance 0 . After drying, placing the test specimen in a dry and ventilated place to normal temperature, measuring the initial length of the test specimen by using a vernier caliper before test, measuring the length 1 time at the two ends and the middle part of the test specimen, taking the average value of 3 times of measurement as the initial length L of the test specimen 0 。
(2) The shrinkage tester 1 is placed in the outdoor natural environment, and the leveling bubble is centered by adjusting the leveling screw 32.
(3) A smooth metal rod 4 is placed on the bottom plate 11 of the shrinkage tester 1.
(4) The end of the test piece was attached with a corner (thin glass piece) using a strain gel (502 gel).
(5) The light surface of the test piece is downward and is placed on a shrinkage tester 1, a dial gauge is arranged, the gauge head of the dial gauge is arranged at the middle position of a stuck glass sheet, the dial gauge is propped against the glass sheet, the small needle (hundred-bit pointer) of the dial gauge is moved to a larger value, after a batch of test pieces are uniformly arranged, the test pieces are zeroed, and the initial reading X is recorded 0 。
(6) The transparent protective cover 2 is put down, and a circle of sealing tape is arranged at the edge of the protective cover 2 to prevent water and gas from entering.
(7) Every week of the start of the test, calculated from the time when the dial indicator was installed in the natural environmentReading for one time per day, and recording the reading X of the dial indicator corresponding to each test piece 1 、X 2 、X 3 、X 4 The reading is accurate to 0.001mm, after 7d, the reading is carried out every two days, after 1 month, the reading of the dial indicator is carried out every 30d (60 d, 90d, 120d, 150d, 180d and the like), and the reading record is carried out on a test specimen independently in each special weather (under the conditions of sand, rain and snow, high temperature above 30 ℃ and low temperature below 0 ℃) and the shrinkage change rule is analyzed.
(8) After the observation is finished, the test piece is put into an oven to be dried to constant m 1 。
4. Result calculation
Shrinkage strain:
mass loss rate:
M＝(m 0 -m 1 )/m 0
wherein: epsilon i Average shrinkage strain (%)
l i Average value (mm) of the sum of dial indicator readings under the ith test
L 0 -initial length of test piece (mm)
MMass loss rate of shrinkage test (%)
m 0 -testing the initial mass of the test piece
m 1 -testing the mass of the test piece after the end of the test
Parallel experiments were performed on 3 samples for each mix; when the range of the 3 test pieces and the average value of the 3 test pieces are not more than 30%, taking the average value as the shrinkage strain of the mixture for effective test; otherwise, the test is conducted again.
The principles and embodiments of the present utility model 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 utility model; also, it is within the scope of the present utility model 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 utility model.
Claims (10)
1. The shrinkage testing device comprises a shrinkage testing instrument and a dial indicator, wherein the shrinkage testing instrument comprises a bottom plate and side plates, the bottom plate is horizontally arranged, the side plates are vertically connected to the bottom plate, fixing holes are horizontally formed in the upper parts of the side plates, fixing rods of the dial indicator can horizontally penetrate through the fixing holes and are fixed, two side plates are arranged, two side plates are oppositely arranged, and a test piece can be placed on the bottom plate between the two side plates; the method is characterized in that: the shrinkage testing device for the inorganic binder stable material convenient to use outdoors further comprises a protective cover and a base, wherein the protective cover is installed on the shrinkage testing instrument and used for covering the dial indicator, and the base is supported at the bottom of the shrinkage testing instrument and can enable the bottom plate to be horizontally suspended.
2. The shrinkage test device for an inorganic binder stabilizing material for outdoor use according to claim 1, wherein: bolt holes are vertically formed between the top wall of the fixing hole on the side plate and the top edge of the side plate, so that the fixing rod of the dial indicator can be fixed in the fixing hole through bolts.
3. The shrinkage test device for an inorganic binder stabilizing material for outdoor use according to claim 2, wherein: the protective cover comprises a first side wall, a top wall and a second side wall which are sequentially connected, wherein the bottom of the first side wall and the bottom of the second side wall are fixedly connected to the bottom plate, the first side wall and the second side wall are oppositely arranged, the inner side of the first side wall and the inner side of the second side wall are respectively attached to two side edges of the side plate, a gap is reserved between the inner side of the top wall and the top edge of the side plate, and the gap is used for installing the bolt;
the protective cover further comprises a sealing plate and a movable door, the sealing plate is fixedly connected to the bottom of the top wall and is close to the gap, the sealing plate is matched with the gap, the movable door is movably connected to the protective cover at an opening of the protective cover far away from the middle of the bottom plate, the protective cover can be closed or opened, and a gauge head of the dial indicator can be contained between the movable door and the side plate;
the protection covers are arranged in two, and the two protection covers are respectively covered at the two side plates of the shrinkage tester.
4. The shrinkage testing apparatus for an inorganic binder stabilizing material for outdoor use according to claim 3, wherein: the movable door is a lifting plate, one end, away from the middle part of the bottom plate, of the first side wall is provided with a first sliding groove, one end, away from the middle part of the bottom plate, of the second side wall is provided with a second sliding groove, and two side edges of the lifting plate are respectively connected with the first sliding groove and the second sliding groove in a sliding mode, so that the lifting plate can slide up and down.
5. The shrinkage testing apparatus for an inorganic binder stabilizing material for outdoor use according to claim 4, wherein: the base comprises a first support plate and a second support plate, wherein the first support plate and the second support plate are fixedly connected to the bottom of the bottom plate and are respectively located at two ends of the bottom plate.
6. The shrinkage testing apparatus for an inorganic binder stabilizing material for outdoor use according to claim 5, wherein: the base also comprises four leveling screw buttons, wherein two leveling screw buttons are fixedly connected to the bottom of the first support plate and the bottom of the second support plate respectively, and the leveling screw buttons are used for adjusting the levelness of the bottom plate; and a level bubble is further arranged on the bottom plate.
7. The shrinkage testing apparatus for an inorganic binder stabilizing material for outdoor use according to claim 6, wherein: the bottom plate is also provided with a limiting block, and the limiting block is fixedly connected to one side of the bottom plate and positioned between the two side plates.
8. The shrinkage testing apparatus for an inorganic binder stabilizing material for outdoor use according to any one of claims 1 to 7, wherein: the shrinkage testing device for the inorganic binder stabilizing material convenient to use outdoors further comprises a plurality of smooth rods, and all the smooth rods can be uniformly placed between the testing test piece and the bottom plate.
9. The shrinkage test device for an inorganic binder stabilizing material for outdoor use according to claim 8, wherein: the bottom plate, the side plates and the base are all made of temperature deformation resistant materials; the protective cover is made of transparent materials; the smooth rod is made of metal.
10. The shrinkage test device for an inorganic binder stabilizing material for outdoor use according to claim 9, wherein: the base plate, the side plates, the base and the smooth rod are all coated with protective layers, and the protective layers can prevent water and cracking caused by high temperature or low temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320112907.1U CN219996936U (en) | 2023-01-17 | 2023-01-17 | Inorganic binder stable material shrinkage testing device convenient to use outdoors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320112907.1U CN219996936U (en) | 2023-01-17 | 2023-01-17 | Inorganic binder stable material shrinkage testing device convenient to use outdoors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219996936U true CN219996936U (en) | 2023-11-10 |
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ID=88611794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320112907.1U Active CN219996936U (en) | 2023-01-17 | 2023-01-17 | Inorganic binder stable material shrinkage testing device convenient to use outdoors |
Country Status (1)
| Country | Link |
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| CN (1) | CN219996936U (en) |
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2023
- 2023-01-17 CN CN202320112907.1U patent/CN219996936U/en active Active
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