CN114509371B - Experimental device and experimental method for directional diffusion of ions in cement stone - Google Patents
Experimental device and experimental method for directional diffusion of ions in cement stone Download PDFInfo
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- CN114509371B CN114509371B CN202210071167.1A CN202210071167A CN114509371B CN 114509371 B CN114509371 B CN 114509371B CN 202210071167 A CN202210071167 A CN 202210071167A CN 114509371 B CN114509371 B CN 114509371B
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- 239000004568 cement Substances 0.000 title claims abstract description 158
- 150000002500 ions Chemical class 0.000 title claims abstract description 75
- 238000009792 diffusion process Methods 0.000 title claims abstract description 59
- 238000002474 experimental method Methods 0.000 title claims abstract description 41
- 239000004575 stone Substances 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000012360 testing method Methods 0.000 claims description 66
- 239000011521 glass Substances 0.000 claims description 14
- 239000006260 foam Substances 0.000 claims description 8
- 239000003595 mist Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 8
- 239000004816 latex Substances 0.000 description 7
- 229920000126 latex Polymers 0.000 description 7
- 230000005012 migration Effects 0.000 description 7
- 238000013508 migration Methods 0.000 description 7
- 238000011160 research Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000007646 directional migration Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 239000003469 silicate cement Substances 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N2013/003—Diffusion; diffusivity between liquids
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- 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)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides an experimental device for directional diffusion of ions in set cement, which is characterized by comprising the following components: the closed container is a cube with an open top surface and one open side surface, and the open side surface of the container is an open side surface; a fan disposed outside the closed container and located on the side of the open side; the water storage tank is arranged at the bottom of the closed container; the ultrasonic atomizer is placed in the water of the water storage tank; the timing switch is connected with the ultrasonic atomizer and used for controlling the opening and closing of the ultrasonic atomizer; a sample frame disposed on the open side for placing a sample; a movable cover plate covering the top surface of the closed container; the sample is a set cement block and is formed by assembling a plurality of square set cement small blocks. The invention provides an experimental method for directional diffusion of ions in set cement, which is characterized by comprising the following steps of: and carrying out ion directional diffusion experiments in the cement stone by using the experimental device.
Description
Technical Field
The invention belongs to the field of cement decoration, and particularly relates to an experimental device and an experimental method for directional diffusion of ions in cement stones.
Background
The cement-based decorative material has higher requirements on appearance, but the silicate cement can generate frosting after hardening, which obviously influences the decorative effect of the products, and particularly has more serious influence on the appearance of color products. The frosting product of cement mainly comes from calcium ions and other alkaline ions in cement stones, gradually migrates to the decorative surface of the product along with the change of the dry and wet conditions of the environment where the cement decorative product is positioned, and white carbonate is formed after carbonization, so that the appearance of the product is affected. This problem is effectively solved if the bloom product ions can be directed to induce and migrate to the back of the product, thereby preventing migration to the decorative surface. However, the research on the anti-frosting technology of the ion has a longer period because the ion migration process is slower. Therefore, the process of the migration of the frosting ions is quickened, the research efficiency of the frosting resistance technology is improved, and the problems which need to be solved urgently.
Disclosure of Invention
The invention aims to solve the problems and aims to provide an experimental device and an experimental method for directional diffusion of ions in cement stones. For this purpose, the invention provides the following technical scheme:
the invention provides an experimental device for directional diffusion of ions in set cement, which is characterized by comprising the following components: a container having a top surface and a side surface, the side surface being open; a fan disposed outside the container and located on a lateral side of the open side; a water storage tank mounted at the bottom of the container; the ultrasonic atomizer is placed in the water of the water storage tank; the timing switch is connected with the ultrasonic atomizer and used for controlling the opening and closing of the ultrasonic atomizer; a sample frame disposed on the open side for placing a sample; a movable cover plate covering the top surface of the container; the sample is a set cement block and is formed by assembling a plurality of square set cement small blocks.
In the experimental device for directional ion diffusion in cement stones, the experimental device provided by the invention can also have the following characteristics: wherein, the sample frame is lined at the opening of the open side surface and is adhered with the inner wall of the container into a whole, and the bottom edge of the sample frame is higher than the water level in the water storage tank.
In the experimental device for directional ion diffusion in cement stones, the experimental device provided by the invention can also have the following characteristics: wherein, the container adopts waterproof panel to make, and waterproof panel includes plastic slab and organic glass board, and the sample frame adopts extrusion molding foam plastic board to make, and the removable cover adopts glass board or transparent organic glass board to make.
In the experimental device for directional ion diffusion in cement stones, the experimental device provided by the invention can also have the following characteristics: wherein the thickness of the extruded foam sheet is 40mm.
The invention provides an experimental method for directional diffusion of ions in set cement, which is characterized by comprising the following steps of: and carrying out the ion directional diffusion experiment in the set cement by using the experimental device for ion directional diffusion in the set cement of any one of the above steps.
The experimental method for directional ion diffusion in the set cement provided by the invention can be further characterized by comprising the following steps: step 1, assembling a plurality of small cement stone test blocks into a rectangular structure to obtain cement stone test blocks, and mounting the cement stone test blocks on a sample frame; step 2, injecting water into the water storage tank, placing the ultrasonic atomizer in the water, leading a power line of the ultrasonic atomizer out of the top surface of the container, and covering a movable cover plate; step 3, adjusting a timing switch to enable the ultrasonic atomizer to be opened and closed at certain intervals, and forming water mist in the container; and 4, turning on a fan and adjusting the wind speed to enable the wind direction to be closely attached to the outer surface of the set cement test block and parallel to the outer surface, so that the ion directional diffusion experiment in the set cement is started.
The experimental method for directional ion diffusion in the cement stone provided by the invention can also have the following characteristics: in the step 1, the outer dimension of the set cement test block is consistent with the inner frame dimension of the sample frame, or the outer dimension of the set cement test block is smaller than the inner frame dimension of the sample frame, and gaps between the set cement test block and the inner frame of the sample frame are filled with waterproof filler and glued and sealed, and the small set cement test blocks are bonded and sealed with each other and the inner frame of the sample frame through adhesives.
The experimental method for directional ion diffusion in the cement stone provided by the invention can also have the following characteristics: the ratio of the length to the width to the height in the container is 5:5:6, and the length, the width and the height in the test block frame are 5:1:5 respectively.
The experimental method for directional ion diffusion in the cement stone provided by the invention can also have the following characteristics: wherein the length, width and height of the interior of the container are 250mm, 250mm and 300mm, respectively, and the length, width and height of the interior of the test block frame are 200mm, 40mm and 200mm, respectively.
Effects and effects of the invention
The invention provides an experimental device for directional diffusion of ions in set cement, which is characterized by comprising the following components: a container having a top surface and a side surface, the side surface being open; a fan disposed outside the container and located on a lateral side of the open side; a water storage tank mounted at the bottom of the container; the ultrasonic atomizer is placed in the water of the water storage tank; the timing switch is connected with the ultrasonic atomizer and used for controlling the opening and closing of the ultrasonic atomizer; a sample frame disposed on the open side for placing a sample; a movable cover plate covering the top surface of the container; the sample is a set cement block and is formed by assembling a plurality of square set cement small blocks. The experimental device for directional ion diffusion in the set cement provided by the invention can be used for inducing the directional migration of free ions in the set cement in a planned way, solves the problems of slower ion migration process and longer research period for performing the anti-frosting technology on the set cement, and can greatly improve the research efficiency.
The invention provides an experimental method for directional diffusion of ions in set cement, which uses the experimental device for directional diffusion of ions in set cement of any one of the above to carry out the experiments for directional diffusion of ions in set cement, and is characterized by comprising the following steps: step 1, assembling a plurality of small cement stone test blocks into a rectangular structure to obtain cement stone test blocks, and mounting the cement stone test blocks on a sample frame; step 2, injecting water into the water storage tank, placing the ultrasonic atomizer in the water, leading a power line of the ultrasonic atomizer out of the top surface of the container, and covering a movable cover plate; step 3, adjusting a timing switch to enable the ultrasonic atomizer to be opened and closed at certain intervals, and forming water mist in the container; and 4, opening a fan and adjusting the wind speed to enable the wind direction to be closely attached to the outer surface of the set cement test block and parallel to the outer surface, so that the ion directional diffusion experiment in the set cement is started, one side of the set cement test block can be kept in a high-humidity environment all the time, the other side of the set cement test block is exposed outside, and the side of the set cement test block can be kept in an air-dried state by the fan arranged on the side of the exposed side of the set cement test block, so that a humidity difference environment is formed on the two sides of the set cement test block, the directional migration of free ions in the set cement is induced in a planned manner, the ion migration process is accelerated, and the research efficiency of the anti-frosting technology is improved.
Drawings
Fig. 1 is a schematic perspective view of an experimental apparatus for directional ion diffusion in a cementitious stone according to an embodiment of the present invention;
FIG. 2 is a schematic view of a container and a block frame according to a first embodiment of the present invention;
FIG. 3 is a schematic view showing the assembly of a set cement block according to the first embodiment of the present invention;
fig. 4 is a schematic diagram showing the assembly of a set cement block according to a second embodiment of the present invention.
Detailed Description
In order to make the technical means, creation characteristics, achievement purposes and effects of the invention easy to understand, the following embodiments specifically describe an experimental device and an experimental method for directional ion diffusion in the set cement by combining the drawings.
Example 1 ]
FIG. 1 is a schematic perspective view of an experimental apparatus for directional diffusion of ions in a cementitious material in accordance with an embodiment of the present invention; FIG. 2 is a schematic diagram of a frame structure of a container and a test block according to an embodiment of the present invention; fig. 3 is a schematic view showing the assembly of a set cement block according to the first embodiment of the present invention.
As shown in fig. 1 to 3, the embodiment provides an experimental device and an experimental method for directional diffusion of ions in cement stones.
In this embodiment, the experimental apparatus 11 for directional ion diffusion in set cement comprises: fan 1, container 2, ultrasonic atomizer 3, sample frame 4, removable cover 5, time switch 6, catch basin 7, set cement test block 9.
Wherein the container 2 is a cube with an open top surface and one open side surface, and is made of waterproof plates, wherein the waterproof plates comprise plastic plates and organic glass plates, and the open side surface of the container 2 is an open side surface 12. In this embodiment, the length, width and height of the interior of the container 2 are 250mm, 250mm and 300mm, respectively.
The fan 1 is placed outside the container 2 and laterally on the open side 12 of the container 2. A removable cover 5 is placed on the top surface of the container 3 to cover the top surface of the container 3, and the removable cover 5 can be removed from the top surface of the container 3 when needed. The movable cover plate 5 is made of a glass plate or a transparent organic glass plate.
A water storage tank 7 is mounted on the bottom of the container 2. The ultrasonic atomizer 3 is placed in water of the water storage tank 7, and the timing switch 6 is connected with the ultrasonic atomizer 3 and used for controlling the opening and closing of the ultrasonic atomizer 3, and the ultrasonic atomizer 3 is used for spraying water mist when being opened.
A sample frame 4 disposed on the open side 12 of the container 2 for holding a sample. The sample frame 4 was made of an extruded foam sheet having a thickness of 40mm. The sample frame 4 is lined in the opening of the open side 12 of the container 2 and is bonded to the inner wall of the container 2, and the bottom edge of the sample frame 4 is higher than the water level in the water reservoir 7. In this embodiment, the length, width, and height of the inside of the test block frame 4 are 200mm, 40mm, and 200mm, respectively.
The sample is a set cement test block 9, and is of a rectangular structure formed by assembling a plurality of square set cement small test blocks, and the outer dimension of the set cement test block 9 is consistent with the inner frame dimension of the sample frame 4. In this embodiment, 25 pieces of cubic small cement blocks with the dimensions of 40mm×40mm are taken, the interfaces between the small cement blocks are smeared with white latex, and then the small cement blocks are spliced together to form a shape shown in fig. 3, so as to obtain a small cement block 9. And coating white latex on the periphery of the set cement test block 9, and embedding the set cement test block 9 into the test block frame 4 to enable the set cement test block 9 and the test block frame 4 to be connected together in a sealing way.
In the embodiment, the specific steps of assembling the ion directional diffusion experimental device in the cement stone are as follows: firstly, manufacturing a cube with an open top surface and an open side surface as a container 2; the fan 1 is placed outside the container 2 and is arranged on the side of the open side face 12 of the container 2; a water storage tank 7 is arranged at the bottom of the container 2; placing the ultrasonic atomizer 3 in the water of the water storage tank 7; the timing switch 6 is connected with the ultrasonic atomizer 3 and controls the opening and closing of the ultrasonic atomizer 3; disposing the sample frame 4 on one side of the container 2; the top surface of the container 2 is covered with a removable cover 5. In the embodiment, 4 pieces of organic glass plates are adopted for the container 2, edges of the organic glass plates are bonded with each other, so that a cube with an open top surface and a side surface as shown in fig. 2 is manufactured, and the length, the width and the height of the inside of the cube are respectively 250mm, 250mm and 300mm; a strip of a certain width and length is cut out from an extruded foam sheet of 40mm in thickness, lined in the opening of the open side face 12 of the container 2 and bonded integrally with the inner wall of the container 2 as a test block frame 4, and the length, width and height of the inner frame of the test block frame 4 are 200mm, 40mm and 200mm, respectively.
In this embodiment, the experimental method for directional ion diffusion in set cement includes performing experiments using the experimental apparatus 11 for directional ion diffusion in set cement, and specifically includes the following steps:
step 1, assembling a plurality of square small cement blocks into a rectangular structure to obtain a cement block 9, enabling the outer dimension of the cement block 9 to be consistent with the inner frame dimension of a sample frame 4, and installing the cement block 9 on the sample frame 4; in this embodiment, 25 pieces of cubic small cement blocks with the dimensions of 40mm×40mm are taken, the interfaces between the small cement blocks are smeared with white latex, and then the small cement blocks are spliced together to form a shape shown in fig. 3, so as to obtain a small cement block 9. And coating white latex on the periphery of the set cement test block 9, and embedding the set cement test block 9 into the test block frame 4 to enable the set cement test block 9 and the test block frame 4 to be connected together in a sealing way.
And 2, injecting water into the water storage tank 7, placing the ultrasonic atomizer 3 in the water, leading out a power line of the ultrasonic atomizer 3 from the top surface of the container 2, and covering the movable cover plate 5, so that the container 2, the movable cover plate 5, the test block frame 4 and the cement stone test block 9 form a closed container.
And 3, adjusting the timing switch 6 to enable the ultrasonic atomizer 3 to be opened and closed at certain intervals, and forming water mist in the container 2.
And 4, turning on the fan 1 and adjusting the wind speed to enable the wind direction to be closely attached to the outer surface of the set cement test block 9 and parallel to the outer surface, so that an ion directional diffusion experiment in the set cement can be started.
Example 2 ]
The embodiment provides an experimental device and an experimental method for directional diffusion of ions in cement stones.
The experimental apparatus for directional diffusion of ions in the cement stone of this embodiment is different from the experimental apparatus 11 for directional diffusion of ions in the cement stone of embodiment 1 in that the manner of assembling the samples is different. Fig. 4 is a schematic diagram showing the assembly of cement stone test blocks in the second embodiment of the present invention, as shown in fig. 4, in this embodiment, 16 small cement stone test blocks of a cube with a size of 40mm×40mm are spliced into a shape as shown in fig. 4, and after the interface between the small cement stone test blocks is smeared with white latex, the small cement stone test blocks are assembled together to obtain a cement stone test block 9. From an extruded foam sheet having a thickness of 40mm, 2 pieces of the strip 10 having the shape shown in fig. 4 were cut out and bonded with the set cement block 9 by using white latex in the structure shown in fig. 4 to form a combination of the set cement block 9 and the strip 10, and the outer peripheral dimension of the combination was made to be 200mm×40mm in accordance with the inner frame dimension of the block frame 4. The periphery of the combination is smeared with white latex, and then the combination is inlaid in the test block frame 4, so that the combination and the test block frame 4 are connected together in a sealing way. The rest of the experimental device for directional ion diffusion in the cement stone and the specific installation steps are the same as those of the experimental device for directional ion diffusion in the cement stone in the first embodiment, and will not be described again.
The experimental method for directional diffusion of ions in the cement stone in this embodiment is the same as that in the cement stone in the first embodiment, and will not be described again.
Effects and effects of the examples
According to the experimental device and the experimental method for directional ion diffusion in the set cement, the experimental device for directional ion diffusion in the set cement comprises: in this embodiment, the experimental apparatus for directional ion diffusion in set cement includes: fan, container, ultrasonic atomizer, sample frame, movable cover plate, timing switch, water storage tank, cement stone test block. The container is a cube with an open top surface and one open side surface, and is made of waterproof plates, wherein the waterproof plates comprise plastic plates and organic glass plates, and the open side surface of the container is the open side surface. The fan is placed outside the container and on the side of the open side. The movable cover plate covers the top surface of the container and is made of a glass plate or a transparent organic glass plate. And the water storage tank is arranged at the bottom of the container. The ultrasonic atomizer is placed in the water of the water storage tank. The timing switch is connected with the ultrasonic atomizer and used for controlling the opening and closing of the ultrasonic atomizer. A sample frame disposed on the open side of the container for holding a sample. The sample frame was made of an extruded foam sheet having a thickness of 40mm. The sample frame is lined at the opening of the open side surface of the container and is bonded with the inner wall of the container into a whole, and the bottom edge of the sample frame is higher than the water level in the water storage groove. The sample is a set cement test block, is a rectangular structure formed by assembling a plurality of square set cement small test blocks, and the outer dimension of the set cement test block is consistent with the inner frame dimension of the sample frame. In this embodiment, the set cement test block is encapsulated on one side of the provided sealing device, and the water tank, the atomizer and the atomizer timing switch arranged outside in the device can keep the high humidity environment on one side of the set cement test block all the time, while the symmetrical side of the test block is exposed, and the fan arranged laterally on the surface of the test block can keep the air-dried state of the side of the test block, thereby forming the humidity difference environment on two sides of the set cement test block, and further inducing the directional migration of free ions in the set cement in a planned manner.
The experimental method for ion directional diffusion in set cement provided by the embodiment uses the experimental device for ion directional diffusion in set cement to perform the ion directional diffusion experiment in set cement, and comprises the following steps:
step 1, assembling a plurality of square small cement blocks into a rectangular structure to obtain cement blocks, enabling the outer dimensions of the cement blocks to be consistent with the inner frame dimensions of a sample frame, and mounting the cement blocks on the sample frame; step 2, injecting water into the water storage tank, placing the ultrasonic atomizer in the water, leading a power line of the ultrasonic atomizer out of the top surface of the container, and covering a movable cover plate; step 3, adjusting a timing switch to enable the ultrasonic atomizer to be opened and closed at certain intervals, and forming water mist in the container; and 4, turning on a fan and adjusting the wind speed to enable the wind direction to be closely attached to the outer surface of the set cement test block and parallel to the outer surface, namely starting an experimental test process of directional diffusion of ions in the set cement. The side of the set-cement block facing the inside of the experimental device simulates the decorative face of the cement-based decorative material, while the side of the set-cement block exposed to the outside of the experimental device simulates the back face of the cement-based decorative material. According to the experimental method, the migration of main frosting product ions of cement can be controlled by utilizing the humidity difference environment at two sides of a set cement test block according to the principle that frosting ions need to diffuse from high humidity to low humidity by means of an aqueous solution, so that the frosting ions in the set cement can migrate from one side of a decorative surface to one side of the back surface of the set cement, the directional migration of free ions in the set cement can be induced in a planned manner, the influence of silicate cement frosting on the appearance of a decorative layer is eliminated, the frosting ion migration process is accelerated, the research efficiency of the frosting resistance technology is improved, and the problem of long research period of the frosting resistance technology is solved.
In addition, the technical scheme of the invention can be realized by carrying out special design based on the mounting structure of the hanging plate type cement decorative plate: the cavity is reserved at the back of the hanging plate of the decorative plate, the cavity at the back of the whole hanging plate is communicated up and down, and the vent hole is arranged at the topmost end of the cavity, so that a chimney effect behind the hanging plate type cement decorative plate can be formed, the dry environment behind the plate can be kept by utilizing the chimney effect, the exposed decorative surface is always in a high-humidity state when being used for outdoor rain and snow influence, and frosting ions can be transported to the back of the plate by means of the humidity in the external environment of the cement decorative plate.
Claims (7)
1. An experimental method for directional diffusion of ions in set cement, which uses an experimental device for directional diffusion of ions in set cement to carry out the directional diffusion experiment of ions in set cement, is characterized in that:
the experimental device for directional diffusion of ions in cement stone comprises:
a container having a top surface and a side surface, the open side surface of the container being an open side surface,
a fan disposed outside the container and laterally upward of the open side,
a water storage tank which is arranged at the bottom of the container,
an ultrasonic atomizer which is arranged in the water of the water storage tank,
the timing switch is connected with the ultrasonic atomizer and used for controlling the opening and closing of the ultrasonic atomizer,
a sample frame disposed on the open side for placing a sample,
a movable cover plate covering the top surface of the container,
the sample is a set cement block, which is formed by assembling a plurality of square set cement small blocks,
the experimental method for directional diffusion of ions in the cement stone comprises the following steps:
step 1, assembling a plurality of small cement stone test blocks into a rectangular structure to obtain the cement stone test blocks, and mounting the cement stone test blocks on the sample frame;
step 2, injecting water into the water storage tank, placing the ultrasonic atomizer in water, leading a power line of the ultrasonic atomizer out of the top surface of the container, and covering the movable cover plate;
step 3, adjusting the timing switch to enable the ultrasonic atomizer to be opened and closed at certain intervals, and forming water mist in the container;
and 4, turning on the fan and adjusting the wind speed to enable the wind direction to be closely attached to the outer surface of the set cement test block and parallel to the outer surface, so that the ion directional diffusion experiment in the set cement is started.
2. The experimental method for directional ion diffusion in set cement according to claim 1, wherein the experimental method is characterized in that:
wherein the sample frame is lined at the opening of the open side surface and is bonded with the inner wall of the container into a whole, and the bottom edge of the sample frame is higher than the water level in the water storage tank.
3. The experimental method for directional ion diffusion in set cement according to claim 1, wherein the experimental method is characterized in that:
wherein the container is made of waterproof plates, the waterproof plates comprise plastic plates and organic glass plates,
the sample frame is made of extruded foam plastic plates,
the movable cover plate is made of a glass plate or a transparent organic glass plate.
4. The experimental method for directional ion diffusion in set cement according to claim 3, wherein:
wherein the extruded foam sheet has a thickness of 40mm.
5. The experimental method for directional ion diffusion in set cement according to claim 1, wherein the experimental method is characterized in that:
in the step 1, the outer dimension of the set cement block is consistent with the inner frame dimension of the sample frame, or
The outer dimension of the set cement test block is smaller than the inner frame dimension of the sample frame, and the gap between the set cement test block and the inner frame of the sample frame is filled with waterproof filler and glued and sealed,
the small cement blocks are bonded and sealed with each other and the inner frame of the sample frame through adhesives.
6. The experimental method for directional ion diffusion in set cement according to claim 1, wherein the experimental method is characterized in that:
wherein the ratio of length, width and height of the interior of the container is 5:5:6, and the ratio of length, width and height of the interior of the sample frame is 5:1:5.
7. The experimental method for directional ion diffusion in set cement according to claim 6, wherein:
wherein the length, width and height of the interior of the container are respectively 250mm, 250mm and 300mm,
the length, width, and height of the interior of the sample frame were 200mm, 40mm, and 200mm, respectively.
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| CN202210071167.1A CN114509371B (en) | 2022-01-21 | 2022-01-21 | Experimental device and experimental method for directional diffusion of ions in cement stone |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6959270B2 (en) * | 2001-05-24 | 2005-10-25 | UNIVERSITé LAVAL | Method for modeling the transport of ions in hydrated cement systems |
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