CN113092743A - Cement product whiskering test equipment and whiskering degree detection method - Google Patents
Cement product whiskering test equipment and whiskering degree detection method Download PDFInfo
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- CN113092743A CN113092743A CN202110361977.6A CN202110361977A CN113092743A CN 113092743 A CN113092743 A CN 113092743A CN 202110361977 A CN202110361977 A CN 202110361977A CN 113092743 A CN113092743 A CN 113092743A
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- 239000004568 cement Substances 0.000 title claims abstract description 320
- 238000012360 testing method Methods 0.000 title claims abstract description 36
- 238000001514 detection method Methods 0.000 title description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 175
- 238000000034 method Methods 0.000 claims abstract description 29
- 238000009833 condensation Methods 0.000 claims description 34
- 230000005494 condensation Effects 0.000 claims description 34
- 230000033228 biological regulation Effects 0.000 claims description 10
- 238000001704 evaporation Methods 0.000 claims description 9
- 230000008020 evaporation Effects 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 abstract description 48
- 239000000047 product Substances 0.000 description 33
- 238000005057 refrigeration Methods 0.000 description 16
- 238000010521 absorption reaction Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 7
- 239000012466 permeate Substances 0.000 description 7
- 238000001035 drying Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 239000003513 alkali Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- -1 calcium ions Chemical class 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 150000003839 salts Chemical class 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
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
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- General Health & Medical Sciences (AREA)
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Abstract
The utility model belongs to the technical field of test equipment and specifically relates to a cement product whiskering test equipment is related to, including refrigerating plant, the last position of placing that is used for placing the cement sample that is provided with of refrigerating plant, cement sample one side is through placing the position attached on refrigerating plant's outer wall, and refrigerating plant is used for refrigerating one side to the attached refrigerating plant of cement sample. In the cement sample saltpetering process, the amount of the condensed water on the cement sample is small, so that the possibility of loss of the condensed water from the cement sample is small, the possibility of loss of alkaline ions in the cement sample can be reduced, the possibility of error generation of a saltpetering pattern formed on the surface of the cement sample can be reduced, and the purpose of improving the accuracy of the saltpetering pattern on the surface of the cement sample is achieved.
Description
Technical Field
The application relates to the field of test equipment, in particular to a cement product whiskering test device and a whiskering degree detection method.
Background
The whiskering phenomenon of cement products means that after the cement products are hydrated, alkaline ions such as calcium ions, potassium ions, sodium ions, hydroxide ions and the like in the cement products are dissolved in water and are analyzed out to the surfaces of the products along with the water under the capillary effect in the cement products, and white or milky carbonate is formed on the surfaces of the cement products after the water on the surfaces of the cement products is evaporated and carbon dioxide in the air reacts with the cement products.
At present, with the wider application of high-end cement products such as cement ornaments, plain concrete, assembly buildings and the like, the problems and negative effects caused by the whiskering phenomenon of the cement products are more and more emphasized, so people can carry out whiskering tests on the cement products, and a tool used in the whiskering tests of the cement products is cement product whiskering test equipment.
Cement products whiskering test equipment includes spray set and drying device, and spray set is used for carrying out the trickle to the cement sample, and drying device is used for drying to the cement sample. In the use, at first use spray set to carry out the trickle to the cement sample, reuse drying device stoving cement sample after a period, continue to recycle spray set and drying device and process the cement sample in proper order after the cycle processing certain number of times, the whiskering phenomenon can take place for the cement sample, and there is the whiskering pattern on the surface of cement sample this moment to separate out, and the tester can study the whiskering nature of cement sample through the whiskering pattern.
According to the related technology, when the spraying device sprays water to the cement sample every time, part of alkaline ions in the cement sample can be taken away by the water, so that the concentration of the alkaline ions left on the surface of the cement sample is small, and finally, an error can be generated on a whiskering pattern formed on the surface of the cement sample.
Disclosure of Invention
In order to improve the accuracy of the whiskering pattern on the surface of the cement sample, the application provides a cement product whiskering test device and a whiskering degree detection method.
In a first aspect, the application provides a cement product whiskering test device, which adopts the following technical scheme:
the utility model provides a cement product whiskering test equipment, includes refrigerating plant, is provided with the position of placing that is used for placing the cement sample on the refrigerating plant, and cement sample one side is through placing the position attached on refrigerating plant's outer wall, and refrigerating plant is used for refrigerating one side of the attached refrigerating plant of cement sample.
By adopting the technical scheme, in the using process, firstly, the cement sample is attached to the refrigerating device, then the refrigerating device is adjusted to enable one side of the cement sample attached to the refrigerating device to keep a low-temperature environment, and at the moment, one side of the cement sample far away from the refrigerating device is attached with alkali-free dew condensation water due to the liquefaction of water vapor around the cement sample; then, part of the condensed water can permeate into the cement sample and dissolve alkaline ions in the cement sample, so that the concentration of the alkaline ions in the condensed water on one side of the cement sample, which is far away from the refrigerating device, is lower than that of the alkaline ions in the condensed water in the cement sample, and the alkaline ions can migrate to one side of the cement sample, which is far away from the refrigerating device, through the condensed water; then adjusting the refrigeration device to stop working, standing for a period of time until the cement sample is air-dried, wherein at the moment, dew condensation water of the cement sample is evaporated, alkaline ions outside one side of the cement sample, which is far away from the refrigeration device, are accumulated due to water evaporation, and a whiskering pattern is formed on one side of the cement sample, which is far away from the refrigeration device; in the cement sample saltpetering process, the amount of the condensed water on the cement sample is small, so that the possibility of loss of the condensed water from the cement sample is small, the possibility of loss of alkaline ions in the cement sample can be reduced, the possibility of error generation of a saltpetering pattern formed on the surface of the cement sample can be reduced, and the purpose of improving the accuracy of the saltpetering pattern on the surface of the cement sample is achieved.
Optionally, the cement product saltpetering test equipment further comprises a temperature and humidity control device, and the temperature and humidity control device is used for respectively adjusting the temperature and the humidity around the cement sample.
By adopting the technical scheme, in the process of enabling the cement sample to generate the dew water, firstly, the cement sample is required to be attached to the refrigerating device, then the temperature and humidity control device is adjusted to enable the periphery of the cement sample to keep a constant high-temperature high-humidity environment, the refrigerating device is adjusted to enable one side of the cement sample attached to the refrigerating device to keep a low-temperature environment, and at the moment, the side, away from the refrigerating device, of the cement sample can be attached with the dew water without alkali due to liquefaction of water vapor around the cement sample; after the alkaline ions are sufficiently transferred to one side of the cement sample far away from the refrigerating device through the condensed water, adjusting the refrigerating device to stop working, adjusting the temperature and humidity control device to increase the temperature and reduce the humidity around the cement sample until the condensed water of the cement sample is evaporated, and accumulating the alkaline ions outside one side of the cement sample far away from the refrigerating device due to water evaporation at the moment so as to form a whiskering pattern on one side of the cement sample far away from the refrigerating device; the temperature and humidity control device can more accurately provide a suitable test environment for the cement sample, and the purpose of improving the test efficiency is achieved.
Optionally, the temperature and humidity control device is set to be a box-shaped object, the refrigerating device is installed in the temperature and humidity control device, the temperature and humidity control device is used for adjusting the temperature and the humidity inside the temperature and humidity control device respectively, one side of the temperature and humidity control device is opened, the opening side of the temperature and humidity control device is provided with a box door, and the cement sample is located in the temperature and humidity control device.
Through adopting above-mentioned technical scheme, in the use, the cement sample is inside temperature and humidity regulation and control device, can reduce the loss of heat and humidity around the cement sample this moment, consequently can reduce the energy loss around the cement sample to the outer possibility of temperature and humidity regulation and control device, has reached the purpose of energy saving.
Optionally, the cement sample is attached above the refrigeration device.
By adopting the technical scheme, after the condensed water is attached to one side of the cement sample, which is far away from the refrigerating device, part of the condensed water can permeate into the cement sample due to the action of gravity, and finally part of the condensed water can permeate to the lower side of the cement sample; at the moment, the refrigerating device is in direct contact with the lower side of the cement sample, and the temperature of the refrigerating device is low, so that the condensed water on the lower side of the cement sample can be frozen to form an ice layer; the ice layer can reduce the possibility of loss of the condensed water on the cement sample, and the aim of reducing the possibility of loss of alkaline ions in the cement sample is fulfilled.
Optionally, a groove is formed in the upper side of the refrigerating device, and the cement sample is attached to the refrigerating device through the groove.
Through adopting above-mentioned technical scheme, when installing the cement sample on refrigerating plant, can place the cement sample in the recess, behind the attached dew on the cement sample, the probability that the dew flows outside the recess is less to can reduce the dew loss and take away the possibility that is the alkali ion in the cement sample, reach the purpose that further reduces being the possibility that the alkali ion runs off in the cement sample.
In a second aspect, the application provides a method for detecting the saltpetering degree of a cement product, which adopts the following technical scheme:
a method for detecting the saltpetering degree of a cement product comprises the following steps:
s1, refrigerating one side of the cement sample, wherein the temperature of the refrigerated side of the cement sample is lower than the ambient temperature of the cement sample, the water vapor around the cement sample is liquefied by the cement sample to form dew condensation water, and the dew condensation water is attached to the surface of the cement sample;
s2, standing the cement sample;
s3, stopping refrigerating the side, which is refrigerated, of the cement sample, standing the cement sample until the evaporation of the condensed water on the surface of the cement sample is finished, and leaving a whiskering pattern on the surface of the cement sample;
and S4, comparing the whiskering pattern of the cement sample with the standard whiskering pattern to obtain the whiskering degree of the cement sample.
By adopting the technical scheme, in the detection process of the saltpetering degree of the cement sample, the content of alkaline ions in the condensed water on the surface of the cement sample is low, the condensed water on the surface of the cement sample can permeate into the cement sample, and the alkaline ions in the cement sample can be dissolved in the condensed water permeating into the cement sample; due to the concentration difference between the alkaline ions in the cement sample and the alkaline ions on the surface of the cement sample, the alkaline ions can migrate from the inside of the cement sample to the surface of the cement sample, and after the alkaline ions are sufficiently migrated, dew water on the surface of the cement sample is evaporated, and at the moment, a whiskering pattern is left on the surface of the cement sample; the cement sample does not need to be repeatedly sprayed with water and dried in the whiskering degree detection process, so that the whiskering speed of the cement sample can be increased, the complexity of test operation is reduced, and the purpose of improving the whiskering test efficiency is achieved.
Optionally, in step S1, the temperature of the environment around the cement sample is adjusted to be higher than 5 ℃, and the humidity of the environment around the cement sample is adjusted to be between 5% and 95%; and refrigerating one side of the cement sample to-10-0 ℃ until dew is formed on the surface of the cement sample.
Through adopting above-mentioned technical scheme, at the in-process of refrigerating the cement sample, the refrigeration temperature of the side that the cement sample is refrigerated, the temperature and the humidity of cement sample surrounding environment all can be controlled in known suitable within range, and the tester can have better the accuse to the volume that the dew formed this moment to can reduce the possibility that the attached dew that is on the cement sample is too much and flows out outside the cement sample, consequently reached the purpose that reduces the possibility that the ion that is alkaline of cement sample runs off.
Optionally, the cement sample is refrigerated by using a refrigerating device, and in step S1, one side of the sheet-shaped cement sample is attached to a placement position of the refrigerating device.
Through adopting above-mentioned technical scheme, carry out refrigerated in-process to the cement sample, the cement sample is close to one side and the refrigerating plant is attached of refrigerating plant, the dew condensation water can hardly appear in one side that the cement sample is close to refrigerating plant this moment, thereby make the dew condensation water on cement sample surface all keep away from one side of refrigerating plant at the cement sample almost, and then make the inside alkaline ion major part that is of cement sample can migrate to the one side that refrigerating plant was kept away from to the cement sample, consequently, the whiskering pattern degree of accuracy that one side of refrigerating plant was kept away from to the cement sample formed is higher, the purpose that improves the accuracy that the cement sample violates the basicity and detects has been reached.
Optionally, in step S1, the temperature of the cooling device is adjusted to be lower than 0 ℃ until the cement sample adheres to one side of the cooling device to form an ice layer.
Through adopting above-mentioned technical scheme, after the one side that refrigerating plant was kept away from to the cement sample formed the dew condensation water, the ice sheet can reduce the inside dew condensation water of cement sample and flow out to the outer possibility of cement sample from the one side that refrigerating plant was kept away from to the cement sample, has reached the purpose that is alkaline ion in the reduction cement sample and runs off the possibility.
Optionally, in step S3, the ambient temperature around the conditioned cement sample is increased to above 25 ℃, and the ambient humidity around the conditioned cement sample is decreased to between 0% and 5%, until a whiskering pattern is left on the surface of the cement sample.
Through adopting above-mentioned technical scheme, in the condensation water evaporation process, the tester can adjust that the temperature around the cement sample is higher, humidity is lower, can shorten the evaporation time of condensation water this moment, and then can accelerate the evaporation rate of condensation water, has reached the purpose that improves the efficiency that the cement sample whiskering degree detected.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the refrigerating device, the amount of the dew condensation water attached to the cement sample is less, so that the possibility of loss of the dew condensation water from the cement sample is less, the possibility of loss of alkaline ions in the cement sample can be reduced, and the aim of improving the accuracy of a whiskering pattern on the surface of the cement sample is fulfilled;
2. the groove is formed in the upper side of the refrigerating device, so that the possibility that the loss of the condensed water takes away alkaline ions in the cement sample can be reduced, and the purpose of further reducing the possibility of the loss of the alkaline ions in the cement sample is achieved;
3. in the general alkalinity testing process of cement sample, be the abundant migration back cement sample surface of alkaline ion and leave the whiskering pattern, the cement sample need not to trickle repeatedly and dry at the whiskering degree testing process, and then can accelerate the whiskering speed of cement sample and reduce experimental operation complexity, has reached the purpose that promotes the experimental efficiency of whiskering.
Drawings
FIG. 1 is a schematic structural diagram of a whiskering test apparatus for cement products according to an embodiment of the present disclosure;
fig. 2 is an enlarged view of a portion a of fig. 1;
FIG. 3 is a schematic structural diagram of a cement product whiskering test apparatus according to an embodiment of the present disclosure in a state of detecting whiskering degree of a cement product;
FIG. 4 is a schematic view showing the structure of the refrigeration unit and the support stand in a highlighted manner;
fig. 5 is an enlarged view of a portion B of fig. 4;
FIG. 6 is a schematic view showing the structure of the slot;
FIG. 7 is a schematic view showing the structure of the second slider assembly;
fig. 8 is an enlarged view of a portion C of fig. 7.
Description of reference numerals: 1. cement samples; 2. a temperature and humidity control device; 21. a box door; 22. a support frame; 221. a first slideway; 222. a second slideway; 23. a long groove; 24. storing the box; 25. a water containing tank; 3. a refrigeration device; 31. a groove; 32. a support; 33. storing the tank; 34. a first slide assembly; 341. a slider; 342. a limiting block; 4. a water absorbing device; 41. a transfer assembly; 411. a pulley; 412. a conveyor belt; 42. a water absorbing assembly; 421. a suction roll; 422. a connecting seat; 423. a vertical plate; 43. a wringing component; 431. a pressing plate; 432. a rotating shaft; 5. a color comparison card; 51. a second slide assembly; 511. a slider; 512. a sliding beam; 5121. a bump; 513. a plate frame; 5131. a notch.
Detailed Description
The present application is described in further detail below with reference to figures 1-8.
The embodiment of the application discloses cement product whiskering test equipment. Referring to fig. 1, the cement product saltpetering test equipment is used for saltpetering a cement sample 1 and comprises a temperature and humidity control device 2 and a refrigerating device 3, wherein the temperature and humidity control device 2 and the refrigerating device 3 are both arranged in a closed box shape, and the refrigerating device 3 is arranged in the temperature and humidity control device 2; the cement sample 1 is a sheet-shaped object, the cement sample 1 is positioned in the temperature and humidity control device 2, a placing position for placing the cement sample 1 is arranged on the refrigerating device 3, and one side of the cement sample 1 is attached to the outer wall of the refrigerating device 3 through the placing position; the temperature and humidity control device 2 is used for respectively adjusting the temperature and the humidity inside the temperature and humidity control device 2, and the refrigerating device 3 is used for refrigerating one side of the cement sample 1 attached refrigerating device 3.
Referring to fig. 1, in the process of using the cement product saltpetering test equipment, firstly, a cement sample 1 to be saltpetering is attached to the outer wall of a refrigerating device 3, then the temperature inside a temperature and humidity control device 2 is adjusted to be above 10 ℃ and the humidity is approximately between 0% and 95%, and the temperature of the refrigerating device 3 is approximately between-5 ℃ and 0 ℃, so that a tester can adjust the temperature and humidity control device 2 to keep a constant high-temperature and high-humidity environment inside the temperature and humidity control device 2, and adjust the refrigerating device 3 to keep a lower-temperature environment inside the refrigerating device 3, and at the moment, one side of the cement sample 1, which is far away from the refrigerating device 3, is attached with alkali-free dew condensation water due to liquefaction of water vapor around the cement sample 1; then, part of the condensed water permeates into the cement sample 1 and dissolves the alkaline ions in the cement sample 1, so that the concentration of the alkaline ions in the condensed water on the side of the cement sample 1 away from the refrigerating device 3 is lower than that of the condensed water in the cement sample 1, and the alkaline ions migrate to the side of the cement sample 1 away from the refrigerating device 3 through the condensed water.
After alkaline ions in the cement sample 1 migrate to a preset degree to one side of the cement sample 1 far away from the refrigerating device 3 through the dew condensation water, a tester can adjust the refrigerating device 3 to stop working, and adjust the temperature and humidity control device 2 to enable the temperature in the temperature and humidity control device 2 to rise and the humidity to fall until the dew condensation water of the cement sample 1 evaporates; at the moment, alkaline ions outside the side of the cement sample 1 far away from the refrigerating device 3 are accumulated due to water evaporation, and a whiskering pattern is formed on the side of the cement sample 1 far away from the refrigerating device 3; in the process of whiskering the cement sample 1, the amount of dew condensation water on the cement sample 1 is small, so that the possibility that the dew condensation water runs off from the cement sample 1 is small, the possibility that alkaline ions in the cement sample 1 run off can be reduced, the possibility that the whiskering pattern formed on the surface of the cement sample 1 generates errors can be reduced, and the purpose of improving the accuracy of the whiskering pattern on the surface of the cement sample 1 is achieved.
Referring to fig. 1, one side of the temperature and humidity control device 2 is open, a box door 21 is arranged on the open side of the temperature and humidity control device 2, one end of the box door 21 is hinged to the temperature and humidity control device 2, and the other end of the box door 21 is detachably connected to the temperature and humidity control device 2; a water containing groove 25 is formed in the inner bottom wall of the temperature and humidity control device 2, a support frame 22 is fixedly connected in the temperature and humidity control device 2, the support frame 22 is in a frame shape, the support frame 22 is horizontally arranged above the water containing groove 25, and the refrigerating device 3 is arranged above the support frame 22; the temperature and the humidity in the temperature and humidity control device 2 can be controlled respectively, when the temperature in the temperature and humidity control device 2 reaches a preset value, the constant temperature can be maintained in the temperature and humidity control device 2, and when the humidity in the temperature and humidity control device 2 reaches a preset value, the constant humidity can be maintained in the temperature and humidity control device 2.
Referring to fig. 1, when the temperature and humidity control device 2 is in a high-temperature and high-humidity environment state, because the temperature difference between the wall body of the temperature and humidity control device 2 and the inside of the temperature and humidity control device 2 is large, water vapor in the temperature and humidity control device 2 can be liquefied into condensed water and attached to the inner wall of the temperature and humidity control device 2, at this time, part of the condensed water can flow to the water containing groove 25 of the temperature and humidity control device 2 due to the action of gravity, the arrangement of the support frame 22 can reduce the possibility that the refrigerating device 3 is soaked in the condensed water, and the purpose of reducing the possibility that the refrigerating device 3 is.
Referring to fig. 1, a plurality of grooves 31 are vertically formed in the upper side of the refrigeration device 3, the grooves 31 do not penetrate through the upper side wall of the refrigeration device 3, the plurality of grooves 31 are uniformly distributed in the upper side of the refrigeration device 3, and the cement sample 1 is attached to the refrigeration device 3 through the grooves 31; the inside of the refrigerating device 3 can be refrigerated, and when the temperature inside the refrigerating device 3 is lowered to a preset value, the refrigerating device 3 can maintain a constant temperature.
Referring to fig. 1, after the condensed water is attached to the side of the cement sample 1 away from the refrigerating device 3, part of the condensed water may penetrate into the cement sample 1 due to gravity, and finally part of the condensed water may penetrate to the lower side of the cement sample 1; at the moment, the cement sample 1 is positioned in the groove 31, so that the possibility of loss of dew condensation water on the cement sample 1 can be reduced, meanwhile, the refrigerating device 3 is in direct contact with the lower side of the cement sample 1, and the temperature of the refrigerating device 3 is low, so that the dew condensation water on the lower side of the cement sample 1 can be frozen to form an ice layer, and the ice layer can reduce the possibility of the dew condensation water in the cement sample 1 flowing out of the lower side of the cement sample 1 to the cement sample 1, so that the aim of reducing the possibility of loss of alkaline ions in the cement sample 1 is fulfilled; in addition, the wall thickness of the position, close to the cement sample 1, of the refrigerating device 3 is smaller due to the arrangement of the groove 31, so that the refrigerating effect of the refrigerating device 3 on the cement sample 1 is better, and the aim of saving refrigerating energy is fulfilled.
Referring to fig. 2, the cement product saltpetering test equipment further comprises a water absorption device 4, the water absorption device 4 is located in the temperature and humidity control device 2, the water absorption device 4 comprises a conveying component 41 and a water absorption component 42, the water absorption component 42 is used for absorbing water, the water absorption component 42 is abutted to the inner top wall of the temperature and humidity control device 2, the conveying component 41 is used for conveying the water absorption component 42 to circularly wipe the inner top wall of the temperature and humidity control device 2, and the water absorption component 42 is detachably connected with the conveying component 41.
Referring to fig. 1, the conveying assembly 41 includes belt wheels 411 and a conveying belt 412, the belt wheels 411 are rotatably connected with the temperature and humidity control device 2, driving parts for driving the belt wheels 411 to rotate are arranged on the temperature and humidity control device 2, the driving parts can be set to be first motors, the belt wheels 411 are provided with two, the two belt wheels 411 are distributed along the length direction of the inner top wall of the temperature and humidity control device 2, the conveying belt 412 is sleeved outside the two belt wheels 411, the conveying assembly 41 is provided with two sets, the two sets of conveying assemblies 41 are respectively arranged at two ends of the water absorbing assembly 42, the two sets of conveying assemblies 41 synchronously convey the water absorbing assembly 42, and the water absorbing assembly 42 is arranged outside one side of the conveying belt 412. In the use, the conveying assembly 41 can drive the water absorption assembly 42 to rotate relative to the inner top wall of the temperature and humidity control device 2, and at the moment, the condensed water on the inner top wall of the temperature and humidity control device 2 can be sequentially absorbed by different parts of the water absorption assembly 42, so that more condensed water on the inner top wall of the temperature and humidity control device 2 can be absorbed by the water absorption assembly 42, and the purpose of increasing the water absorption effect of the water absorption assembly 42 is achieved.
Referring to fig. 2, the water absorbing assembly 42 is configured as a plurality of water absorbing members, the plurality of water absorbing members are distributed along the length direction of the conveyor belt 412, the water absorbing members may be any structure having a water absorbing function, in this embodiment, the water absorbing members are configured as water absorbing rollers 421, the water absorbing rollers 421 are made of sponge material, and the water absorbing rollers 421 are perpendicular to the conveying direction of the conveyor belt 412; a connecting seat 422 and a vertical plate 423 are arranged on the working surface of the conveyor belt 412, the connecting seat 422 is fixedly connected with the conveyor belt 412, the vertical plate 423 is vertical to the length direction of the water suction roller 421, one end of the vertical plate 423 is inserted into the connecting seat 422, a bolt is arranged on the connecting seat 422, and the connecting seat 422 and the vertical plate 423 are both in threaded connection with the bolt; a plurality of connecting seats 422 and a plurality of vertical plates 423 are arranged, the connecting seats 422 are uniformly distributed along the length direction of the conveyor belt 412, and one vertical plate 423 is in inserted fit with one connecting seat 422; the water suction roller 421 is located above the gap between the two conveyor belts 412, the end of the water suction roller 421 is rotatably connected with the vertical plate 423, and the water suction roller 421 between the conveyor belts 412 and the inner top wall of the temperature and humidity control device 2 is abutted to the inner top wall of the temperature and humidity control device 2.
Referring to fig. 2, in the process that the water absorbing roller 421 moves relative to the temperature and humidity control device 2, one side of the water absorbing roller 421 abuts against the inner top wall of the temperature and humidity control device 2, and at this time, because friction exists between the water absorbing roller 421 and the inner top wall of the temperature and humidity control device 2, the water absorbing roller 421 rotates relative to the conveyor belt 412, so that different positions of the outer wall of the water absorbing roller 421 are sequentially contacted with the inner top wall of the temperature and humidity control device 2 to absorb water, and therefore the water absorbing roller 421 can absorb more water, and the purpose of further optimizing the water absorbing effect of the water absorbing device 4 is achieved.
Referring to fig. 2, the water absorbing device 4 further includes a water squeezing assembly 43, the water squeezing assembly 43 is disposed at a position close to the head end of the upper side of the conveyor belt 412, the water squeezing assembly 43 includes a squeezing plate 431 and a rotating shaft 432, the squeezing plate 431 is configured as a semicircular tubular plate, the squeezing plate 431 is hollow, the rotating shaft 432 is parallel to the squeezing plate 431, the rotating shaft 432 is fixedly connected with the squeezing plate 431, the rotating shaft 432 is rotatably connected with the temperature and humidity control device 2, and the temperature and humidity control device 2 is provided with a second motor for driving the rotating shaft 432 to rotate; the two squeezing plates 431 are symmetrically arranged at the upper side and the lower side of the water suction roller 421 at the end part of the conveyor belt 412, and the radius of the squeezing plates 431 is smaller than that of the water suction roller 421.
Referring to fig. 2, in the process of conveying the water absorbing assembly 42 by the conveying assembly 41, the belt wheel 411 rotates to drive the conveying belt 412 to convey, at this time, the water absorbing roller 421 moves along with the conveying belt 412 relative to the temperature and humidity control device 2, and when the water absorbing roller 421 moves to abut against the inner top wall of the temperature and humidity control device 2, the water absorbing roller 421 absorbs moisture attached to the inner top wall of the temperature and humidity control device 2; when the water absorbing roller 421 moves to the position near the water squeezing assembly 43, the second motor can control the rotating shaft 432 to drive the two squeezing plates 431 to approach each other, at this time, the squeezing plates 431 can squeeze the water absorbing roller 421, meanwhile, the water in the water absorbing roller 421 can be squeezed out and drops to the inner bottom of the temperature and humidity control device 2, and the water absorbing roller 421 can move back to the position between the conveying belt 412 and the inner top wall of the temperature and humidity control device 2, so that the water absorbing roller 421 can absorb more water, and the purpose of optimizing the water absorbing effect of the water absorbing device 4 is achieved.
Referring to fig. 1, when the temperature and humidity control device 2 is in a high-temperature and high-humidity environment, some condensed water may adhere to the inner wall of the temperature and humidity control device 2, at this time, the conveyor belt 412 may drive the water suction roller 421 to move relative to the inner top wall of the temperature and humidity control device 2, the water suction roller 421 may absorb the condensed water on the inner top wall of the temperature and humidity control device 2, thereby reducing the possibility that the condensed water on the inner top wall of the temperature and humidity control device 2 drops onto the refrigerating device 3, thereby reducing the possibility that the condensed water drops onto the cement sample 1, further reducing the possibility that the condensed water splashes, and achieving the purpose of reducing the loss of alkaline ions in the cement sample 1.
The cement product whiskering test equipment is provided with a detection device which can be set as a camera, the whiskering pattern of the cement sample 1 is shot by the camera, the picture of the whiskering pattern is uploaded to computer software, and the computer software can directly compare the whiskering pattern picture to determine the whiskering degree of the cement sample 1.
Referring to fig. 3, the detection device may further be configured as a plurality of color comparison cards 5, where the plurality of color comparison cards 5 are used to display the salt diffusion degree of the salt diffusion patterns with different colors; the operator directly compares the whiskering pattern on the cement sample 1 with the color comparison card 5, and the whiskering degree of the cement sample 1 can be obtained.
Referring to fig. 4 and 5, the refrigeration device 3 is further provided with a first sliding assembly 34, the first sliding assembly 34 includes a sliding block 341 and a limiting block 342, a first slide way 221 is formed on the support frame 22 along a direction perpendicular to the box door 21, one end of the first slide way 221, which is close to the box door 21, is open, the sliding block 341 is slidably connected with the support frame 22 through the first slide way 221, and the sliding block 341 is fixedly connected below the refrigeration device 3; the supporting frames 22 at two sides of the first slideway 221 are provided with second slideways 222, one ends of the second slideways 222 close to the box door 21 are closed, the limiting blocks 342 are connected with the supporting frames 22 in a sliding manner through the second slideways 222, and the limiting blocks 342 are fixedly connected to the end parts of the sliding blocks 341 far away from the box door 21; referring to fig. 6, a support 32 is hinged to the lower portion of the refrigeration device 3, a storage groove 33 is formed in the lower side of the refrigeration device 3, and the support 32 is embedded in the refrigeration device 3 through the storage groove 33.
Referring to fig. 7 and 8, the outer wall of the temperature and humidity control device 2 is provided with a long groove 23 along the vertical direction, the upper end of the long groove 23 is open, the lower end of the long groove 23 is closed, and the long groove 23 is a dovetail groove; the colorimetric card 5 is further provided with a second sliding assembly 51, the second sliding assembly 51 comprises a sliding block 511, a sliding beam 512 and a plate frame 513, the sliding block 511 is a dovetail block, the sliding block 511 is in sliding connection with the temperature and humidity control device 2 through a long groove 23, the sliding block 511 is fixedly connected with the sliding beam 512, the sliding beam 512 and the plate frame 513 are both horizontally arranged, the plate frame 513 is positioned above the sliding beam 512, the upper side of the sliding beam 512 is fixedly connected with a convex block 5121, the convex block 5121 is a T-shaped block, the lower side of the plate frame 513 is provided with a notch 5131 in a direction perpendicular to the door 21, the notch 5131 is a T-shaped groove, the convex block 5121 is in sliding connection with the door 513 through the notch 5131, the upper side of the temperature and humidity control device 2 is fixedly connected with a storage box 24, one; referring to fig. 3, the colorimetric card 5 is fixedly attached to the upper side of the plate frame 513.
Referring to fig. 3 and 5, after a saltpetering sample appears on one side of the cement sample 1 away from the refrigerating device 3, the box door 21 can be opened and kept stand for a period of time for heat dissipation, then the refrigerating device 3 is manually controlled to drive the sliding block 341 to slide relative to the supporting frame 22, at this time, the refrigerating device 3 with the cement sample 1 can slide out of the temperature and humidity control device 2, and the bracket 32 can be rotated to the position for supporting the refrigerating device 3 until the limiting block 342 is clamped on the supporting frame 22; referring to fig. 3 and 8, next, sliding the plate rack 513 relative to the supporting beam until the plate rack 513 can be completely slid out of the storage box 24, and manually pressing the plate rack 513, at which time the sliding beam 512 and the plate rack 513 both move downwards until the sliding block 511 is clamped at the lower end of the long slot 23, and the colorimetric cards 5 on the plate rack 513 and the upper side of the refrigerating device 3 are at the same height; at this moment, the operator directly compares the whiskering pattern on the cement sample 1 with the colorimetric card 5, so that the whiskering degree of the cement sample 1 can be obtained, and the purpose of convenient operation is achieved.
The implementation principle of the cement product whiskering test equipment and the whiskering degree detection method in the embodiment of the application is as follows: in the using process, firstly, the cement sample 1 is attached to the groove 31 of the refrigerating device 3, then the temperature and humidity control device 2 is adjusted to enable the temperature and humidity control device 2 to keep a constant high-temperature high-humidity environment, the refrigerating device 3 is adjusted to enable one side, attached to the refrigerating device 3, of the cement sample 1 to keep a low-temperature environment, and at the moment, one side, away from the refrigerating device 3, of the cement sample 1 can be attached with alkali-free dew condensation water due to liquefaction of water vapor around the cement sample 1; then, part of the condensed water can permeate into the cement sample 1 and dissolve alkaline ions in the cement sample 1, so that the concentration of the alkaline ions in the condensed water on the side of the cement sample 1 away from the refrigerating device 3 is lower than that of the alkaline ions in the condensed water in the cement sample 1, and the alkaline ions can migrate to the side of the cement sample 1 away from the refrigerating device 3 through the condensed water; then, the refrigerating device 3 is regulated to stop working, and the temperature and humidity regulation and control device 2 is regulated to enable the temperature around the cement sample 1 to be increased and the humidity to be reduced until dew condensation water of the cement sample 1 is evaporated, at the moment, alkaline ions outside one side of the cement sample 1, which is far away from the refrigerating device 3, are accumulated due to water evaporation, and a whiskering pattern is formed on one side of the cement sample 1, which is far away from the refrigerating device 3; in the process of whiskering the cement sample 1, the amount of dew condensation water on the cement sample 1 is small, so that the possibility that the dew condensation water runs off from the cement sample 1 is small, the possibility that alkaline ions in the cement sample 1 run off can be reduced, the possibility that the whiskering pattern formed on the surface of the cement sample 1 generates errors can be reduced, and the purpose of improving the accuracy of the whiskering pattern on the surface of the cement sample 1 is achieved.
The embodiment of the application also discloses a method for detecting the saltpetering degree of a cement product, and referring to fig. 1, the method for detecting the saltpetering degree of the cement product comprises the following steps:
s1, setting the cement sample 1 into a sheet shape, attaching one side of the cement sample 1 to a placing position of a refrigerating device 3, adjusting the ambient environment of the cement sample 1 to be above 5 ℃, adjusting the ambient humidity of the cement sample 1 to be between 5 and 95 percent, refrigerating one side of the cement sample 1 to be between-10 and lower than 0 ℃ by the refrigerating device 3, and attaching the cement sample 1 to one side of the refrigerating device 3 to form an ice layer; keeping the temperature of the refrigerating device 3 constant, standing the cement sample 1 until dew condensation water is formed on the surface of the cement sample 1, wherein the temperature of the refrigerated side of the cement sample 1 is lower than the ambient temperature around the cement sample 1, the cement sample 1 liquefies water vapor around the cement sample 1 to form dew condensation water, and the dew condensation water is attached to the surface of the cement sample 1; because the refrigerating temperature of the refrigerated side of the cement sample 1 and the temperature and the humidity of the environment around the cement sample 1 can be controlled within known proper ranges, a tester can better control the formation amount of the dew;
s2, keeping the condensation state of the cement sample 1, and standing the cement sample 1;
s3, stopping refrigerating the refrigerated side of the cement sample 1, adjusting the ambient temperature around the cement sample 1 to be higher than 25 ℃, and adjusting the ambient humidity around the cement sample 1 to be reduced to 0% -5%; standing the cement sample 1 until the dew condensation water on the surface of the cement sample 1 is dried, and leaving a whiskering pattern on the surface of the cement sample 1;
and S4, comparing the whiskering pattern of the cement sample 1 with the standard whiskering pattern to obtain the whiskering degree of the cement sample 1.
By adopting the technical scheme, in the process of detecting the saltpetering degree of the cement sample 1, the content of alkaline ions in the condensed water on the surface of the cement sample 1 is low, the condensed water on the surface of the cement sample 1 can permeate into the cement sample 1, and the alkaline ions in the cement sample 1 can be dissolved in the condensed water permeating into the cement sample 1; due to the concentration difference between the alkaline ions in the cement sample 1 and the alkaline ions on the surface of the cement sample 1, the alkaline ions can migrate from the inside of the cement sample 1 to the surface of the cement sample 1, and after the alkaline ions are sufficiently migrated, the dew condensation water on the surface of the cement sample 1 is dried and evaporated, and at the moment, a whiskering pattern is left on the surface of the cement sample 1; the cement sample 1 does not need to be repeatedly sprayed with water and dried in the whiskering degree detection process, so that the whiskering speed of the cement sample 1 can be increased, the complexity of test operation can be reduced, and the purpose of improving the whiskering test efficiency is achieved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a cement product whiskering test equipment which characterized in that: including refrigerating plant (3), be provided with the position of placing that is used for placing cement sample (1) on refrigerating plant (3), cement sample (1) one side is through placing the position attached on the outer wall of refrigerating plant (3), and refrigerating plant (3) are used for refrigerating one side of the attached refrigerating plant (3) of cement sample (1).
2. The cementitious product saltpetering test rig of claim 1, wherein: the cement product saltpetering test equipment further comprises a temperature and humidity control device (2), and the temperature and humidity control device (2) is used for respectively adjusting the temperature and the humidity around the cement sample (1).
3. The cementitious product saltpetering test apparatus of claim 2, wherein: temperature and humidity regulation and control device (2) set up to the boxlike thing, and refrigerating plant (3) are installed in temperature and humidity regulation and control device (2), and temperature and humidity regulation and control device (2) are used for adjusting the inside temperature and humidity of temperature and humidity regulation and control device (2) respectively, and temperature and humidity regulation and control device (2) one side opening, the opening side of temperature and humidity regulation and control device (2) is provided with chamber door (21), and cement sample (1) is arranged in temperature and humidity regulation and control device (2).
4. The cementitious product saltpetering test rig of claim 1, wherein: the cement sample (1) is attached above the refrigerating device (3).
5. The cementitious product saltpetering test rig of claim 1, wherein: the upper side of the refrigerating device (3) is provided with a groove (31), and the cement sample (1) is attached to the refrigerating device (3) through the groove (31).
6. The method for detecting the saltpetering degree of the cement product is characterized by comprising the following steps of:
s1, refrigerating one side of the cement sample (1), wherein the temperature of the refrigerated side of the cement sample (1) is lower than the ambient temperature of the cement sample (1), the cement sample (1) liquefies water vapor around the cement sample (1) to form condensation water, and the condensation water is attached to the surface of the cement sample (1);
s2, standing the cement sample (1);
s3, stopping cooling the cooled side of the cement sample (1), standing the cement sample (1) until the evaporation of the dew condensation water on the surface of the cement sample (1) is finished, and leaving a whiskering pattern on the surface of the cement sample (1);
s4, comparing the whiskering pattern of the cement sample (1) with the standard whiskering pattern, and finally obtaining the whiskering degree of the cement sample (1).
7. The method for detecting the saltpetering degree of a cementitious product of claim 6, wherein: in the step S1, the ambient environment of the cement sample (1) is adjusted to be above 5 ℃, and the ambient humidity of the cement sample (1) is adjusted to be between 5% and 95%; and refrigerating one side of the cement sample (1) to-10-0 ℃ until dew is formed on the surface of the cement sample (1).
8. The method for detecting the saltpetering degree of a cementitious product of claim 7, wherein: the cement sample (1) is cooled by the cooling device (3) according to claim 1, and in step S1, one side of the sheet-like cement sample (1) is attached to a place where the cooling device (3) is placed.
9. The method for detecting the saltpetering degree of a cementitious product of any one of claims 8, wherein: and in the step S1, adjusting the refrigerating temperature of the refrigerating device (3) to be lower than 0 ℃ until the cement sample (1) is attached to one side of the refrigerating device (3) to form an ice layer.
10. The method for detecting the saltpetering degree of a cementitious product of claim 6, wherein: in the step S3, the ambient temperature around the regulated cement sample (1) is increased to be more than 25 ℃, and the ambient humidity around the regulated cement sample (1) is reduced to be between 0 and 5 percent until the surface of the cement sample (1) leaves a whiskering pattern.
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