A durability testing device for sea sand solidified soil
By designing a durability testing device for sea sand-stabilized soil, and using temperature control components and salt spray components to simulate freeze-thaw and salt erosion environments, the accuracy problem of durability testing for sea sand-stabilized soil was solved, and efficient freeze-thaw and salt erosion testing was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING NINGTONG INTELLIGENT TRANSPORTATION TECH RES INST CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-07
AI Technical Summary
Existing technologies are insufficient for effectively testing the freeze-thaw cycles and salt erosion of sea sand-stabilized soil, leading to inaccurate durability testing.
A durability testing device for sea sand-stabilized soil was designed, comprising a temperature control component and a salt spraying component. It can simulate freeze-thaw and salt erosion environments. The temperature is controlled by a fan, heating pipe and cooling pipe, and salt spray is applied by a blower pipe and a mist outlet pipe. The fixture is adaptable to different sample block sizes to achieve freeze-thaw and salt erosion tests.
It enables accurate freeze-thaw and salt erosion tests on sea sand-stabilized soil, improving the accuracy and reliability of the tests.
Smart Images

Figure CN224471600U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of durability testing technology, specifically a durability testing device for sea sand solidified soil. Background Technology
[0002] Sea sand solidification is a new type of geotechnical engineering material that improves the properties of sea sand through chemical methods. Its core principle is to use a small amount of inorganic binders such as cement and lime, combined with chemical additives, to promote a solidification reaction, ultimately forming sea sand solidification with high strength, durability and water stability. By solidifying sea sand into rock, it can be directly used as a building material in engineering construction. When conducting durability testing on sea sand solidification, freeze-thaw tests and salt erosion tests are required to test the erosion of sea sand solidification test blocks at different temperatures and air salinity. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a device for testing the durability of solidified sea sand.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] A durability testing device for solidified sea sand includes:
[0006] A testing box, wherein a flip cover is provided on one side of the testing box, a rotating rod is provided between the flip cover and the testing box, the flip cover rotates around the rotating rod, and a handle is provided on the surface of the flip cover for opening the flip cover;
[0007] A temperature control component is provided on the top of the testing chamber. The temperature control component includes a fan, a blower pipe, a heating pipe, and a cooling pipe. The fan is located on the top of the testing chamber and has an air inlet on its surface. The blower pipe is located inside the testing chamber. The fan draws air from the air inlet and blows it into the testing chamber through the blower pipe to ensure gas flow inside the testing chamber. The heating pipe and cooling pipe are respectively fitted on the surface of the blower pipe to heat and cool the gas flowing through the blower pipe to control the temperature inside the testing chamber. This allows for heating or cooling of the flowing gas inside the testing chamber to perform freeze-thaw tests on the sea sand solidified soil sample block to be tested.
[0008] Preferably, the top of the testing chamber is equipped with a salt spraying assembly, which includes a misting pump, a salt solution tank, a mist outlet pipe, and a mist outlet nozzle. The salt solution tank has an inlet pipe at the top, through which the salt solution is stored. A delivery pipe is provided between the misting pump and the salt solution tank, through which the salt solution enters the misting pump. The salt solution tank is installed on one side of the testing chamber, and the misting pump is installed on the top of the testing chamber. The mist outlet pipe is connected to the mist outlet nozzle and placed inside the testing chamber. The misting pump draws salt solution from the salt solution tank through the delivery pipe and atomizes the salt solution. The mist outlet pipe is connected to the mist outlet nozzle, and the atomized salt solution enters the testing chamber through the mist outlet pipe and the mist outlet nozzle.
[0009] Preferably, the output end of the blower pipe is connected to the mist outlet pipe, and the blower pipe is connected to the mist outlet nozzle. The salt mist in the mist outlet pipe is sprayed out from the mist outlet nozzle by the gas flow in the blower pipe, so that the gas flowing in the test chamber contains salt mist, and the test block to be tested is subjected to salt corrosion test.
[0010] Preferably, the side of the testing chamber is provided with an air outlet, and a temperature sensor and an air detector are provided on one side of the air outlet to measure the temperature inside the testing chamber and the element content in the air, thereby enabling real-time adjustment of the temperature control component and the salt spraying component.
[0011] Preferably, the bottom of the testing box is provided with a guide rail, on which two sets of symmetrical L-shaped clamps are slidably mounted. Each L-shaped clamp has a through hole extending from front to back on its surface. The through hole is used to increase the contact area between the sea sand solidified soil specimen and the air, thereby reducing the influence of the clamps on the sea sand solidified soil test. The two sets of clamps slide on the guide rail to hold the sea sand solidified soil specimen, thus allowing the clamps to adapt to sea sand solidified soil specimens of different sizes.
[0012] Preferably, the bottom of the testing box is provided with two sets of first sliding grooves and two sets of sliding rods. The two sets of sliding rods are respectively connected to the two ends of the two sets of guide rails, and the two sets of sliding rods slide in the two sets of first sliding grooves respectively.
[0013] Preferably, the flip cover is provided with a second sliding groove on the side near the guide rail. After the flip cover is opened and laid flat, the first sliding groove and the second sliding groove are connected, and the sliding rod slides from the first sliding groove to the second sliding groove, thereby facilitating the placement and removal of the sea sand solidified soil test block.
[0014] Beneficial effects: In the durability testing device for solidified sea sand of this utility model, the clamp can slide inside the testing chamber, thereby adapting the clamp to solidified sea sand test blocks of different sizes. The heating pipe and cooling pipe heat and cool the gas flowing in the blowing pipe, thereby heating or cooling the gas flowing in the testing chamber to perform freeze-thaw tests on the solidified sea sand test blocks to be tested. The gas flow in the blowing pipe sprays salt mist from the misting nozzle in the misting pipe, so that the gas flowing in the testing chamber contains salt mist, and the test blocks to be tested are subjected to salt erosion tests. Attached Figure Description
[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0016] In the attached diagram:
[0017] Figure 1 This is an overall schematic diagram of the durability testing device for solidified sea sand according to this utility model;
[0018] Figure 2 This is a schematic diagram of the sliding of the clamp of this utility model;
[0019] Figure 3 This is a schematic diagram of the temperature control component and salt spraying component of this utility model.
[0020] The following are the labels in the diagram: 1. Detection box; 2. Salt solution tank; 3. Flip-top; 4. Rotating rod; 5. Fan; 6. Fog pump; 7. Delivery pipe; 8. Air inlet; 9. Liquid inlet pipe; 10. Handle; 11. First slide groove; 12. Second slide groove; 13. Slide rod; 14. Guide rail; 15. Fixture; 16. Through hole; 17. Air outlet; 18. Temperature sensor; 19. Air detector; 20. Air blowing pipe; 21. Heating pipe; 22. Cooling pipe; 23. Fog outlet pipe; 24. Fog nozzle. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. The following text is only used to describe a durability testing device for solidified sea sand of the present utility model, and does not strictly limit the scope of protection specifically claimed by the present utility model.
[0022] Example: Figures 1-3 As shown, a durability testing device for sea sand-stabilized soil includes:
[0023] A durability testing device for solidified sea sand includes:
[0024] Test box 1, such as Figure 1 As shown, a flip cover 3 is provided on one side of the detection box 1, and a rotating rod 4 is provided between the flip cover 3 and the detection box 1. The flip cover 3 rotates around the rotating rod 4. A handle 10 is provided on the surface of the flip cover 3. The handle 10 is used to open the flip cover 3.
[0025] Temperature control components, such as Figure 3 As shown, the top of the test chamber 1 is equipped with a temperature control component, which includes a fan 5, a blower pipe 20, a heating pipe 21, and a cooling pipe 22. The fan 5 is placed on the top of the test chamber 1, and an air inlet 8 is provided on the surface of the fan 5. The blower pipe 20 is placed inside the test chamber 1. The fan 5 draws air from the air inlet 8 and blows it into the test chamber 1 through the blower pipe 20 to ensure gas flow inside the test chamber 1. The heating pipe 21 and the cooling pipe 22 are respectively sleeved on the surface of the blower pipe 20 to heat and cool the gas flowing through the blower pipe 20 to control the temperature inside the test chamber 1, thereby heating or cooling the gas flowing inside the test chamber 1 to perform freeze-thaw tests on the sea sand solidified soil test block to be tested.
[0026] In an embodiment, such as Figure 3 As shown, the top of the testing chamber 1 is equipped with a salt spraying assembly, which includes a misting pump 6, a salt solution tank 2, a mist outlet pipe 23, and a mist outlet nozzle 24. The top of the salt solution tank 2 is equipped with an inlet pipe 9, through which the salt solution is stored in the salt solution tank 2. A delivery pipe 7 is provided between the misting pump 6 and the salt solution tank 2, through which the salt solution enters the misting pump 6. The salt solution tank 2 is installed on one side of the testing chamber 1, and the misting pump 6 is installed on the top of the testing chamber 1. The mist outlet pipe 23 is connected to the mist outlet nozzle 24 and placed inside the testing chamber 1. The misting pump 6 draws salt solution from the salt solution tank 2 through the delivery pipe 7 and atomizes the salt solution. The mist outlet pipe 23 is connected to the mist outlet nozzle 24, and the atomized salt solution enters the testing chamber 1 through the mist outlet pipe 23 and the mist outlet nozzle 24.
[0027] In an embodiment, such as Figure 3 As shown, the output end of the blower pipe 20 is connected to the mist outlet pipe 23, and the blower pipe 20 is connected to the mist outlet nozzle 24. The salt mist in the mist outlet pipe 23 is sprayed out from the mist outlet nozzle 24 through the gas flow in the blower pipe 20, so that the gas flowing in the test chamber 1 contains salt mist, and the test block to be tested is subjected to salt corrosion test.
[0028] In an embodiment, such as Figure 2As shown, the side of the detection chamber 1 is provided with an air outlet 17. A temperature sensor 18 and an air detector 19 are provided on one side of the air outlet 17 to measure the temperature inside the detection chamber 1 and the element content in the air, so as to adjust the temperature control component and the salt spraying component in real time.
[0029] In an embodiment, such as Figure 2 As shown, the bottom of the test box 1 is provided with a guide rail 14, and two sets of symmetrical L-shaped clamps 15 are slidably mounted on the guide rail 14. Each L-shaped clamp 15 has a through hole 16 extending from front to back on its surface. The through hole 16 is used to increase the contact area between the sea sand solidified soil test block and the air, and to reduce the influence of the clamps 15 on the sea sand solidified soil test. The two sets of clamps 15 slide on the guide rail 14 to clamp the sea sand solidified soil test block, so that the clamps 15 can adapt to sea sand solidified soil test blocks of different sizes.
[0030] In an embodiment, such as Figure 2 As shown, the bottom of the detection box 1 is provided with two sets of first sliding grooves 11 and two sets of sliding rods 13. The two sets of sliding rods 13 are respectively connected to the two ends of the two sets of guide rails 14, and the two sets of sliding rods 13 slide in the two sets of first sliding grooves 11 respectively.
[0031] In an embodiment, such as Figure 2 As shown, the flip cover 3 is provided with a second sliding groove 12 on the side near the guide rail 14. After the flip cover 3 is opened and laid flat, the first sliding groove 11 is connected to the second sliding groove 12, and the sliding rod 13 slides from the first sliding groove 11 to the second sliding groove 12, thereby facilitating the placement and removal of the sea sand solidified soil test block.
[0032] In use, the slide bar 13 slides from the first slide groove 11 to the second slide groove 12, and the clamp 15 can slide within the test chamber 1, thereby adapting the clamp 15 to sea sand solidified soil test blocks of different sizes, facilitating the placement and removal of the sea sand solidified soil test blocks. The heating pipe 21 and cooling pipe 22 heat or cool the gas flowing through the air blowing pipe 20, thereby heating or cooling the gas flowing in the test chamber 1 to perform freeze-thaw tests on the sea sand solidified soil test blocks to be tested. The gas flow propels the salt mist from the mist outlet pipe 23 out of the mist outlet nozzle 24, ensuring that the gas flowing inside the test chamber 1 contains salt mist. Salt erosion testing is then performed on the test block. The gas inside the test chamber 1 flows out through the air outlet 17. A temperature sensor 18 and an air detector 19 on one side of the air outlet 17 measure the temperature inside the test chamber 1 and the elemental content in the air, thereby enabling real-time adjustment of the temperature control component and the salt mist spraying component. The sea sand solidified soil test block on the clamp 15 is then removed, and test data is collected.
[0033] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. For those skilled in the art, after learning the contents of the present utility model, they can make several equivalent changes and substitutions without departing from the principle of the present utility model. These equivalent changes and substitutions should also be considered to fall within the protection scope of the present utility model.
Claims
1. A durability testing device for solidified sea sand, characterized in that: include: A testing box, wherein a flip cover is provided on one side of the testing box, a rotating rod is provided between the flip cover and the testing box, the flip cover rotates around the rotating rod, and a handle is provided on the surface of the flip cover for opening the flip cover; A temperature control component is provided on the top of the testing chamber. The temperature control component includes a fan, a blower pipe, a heating pipe, and a cooling pipe. The fan is located on the top of the testing chamber and has an air inlet on its surface. The blower pipe is located inside the testing chamber. The fan draws air from the air inlet and blows it into the testing chamber through the blower pipe to ensure gas flow inside the testing chamber. The heating pipe and cooling pipe are respectively fitted on the surface of the blower pipe to heat and cool the gas flowing through the blower pipe to control the temperature inside the testing chamber.
2. The durability testing device for solidified sea sand according to claim 1, characterized in that: The top of the testing chamber is equipped with a salt spraying assembly, which includes a misting pump, a salt solution tank, a mist outlet pipe, and a mist outlet nozzle. The salt solution tank has an inlet pipe at its top, through which the salt solution is stored. A delivery pipe connects the misting pump and the salt solution tank, through which the salt solution enters the misting pump. The salt solution tank is installed on one side of the testing chamber, and the misting pump is installed on the top of the testing chamber. The mist outlet pipe and the mist outlet nozzle are connected and placed inside the testing chamber. The misting pump draws salt solution from the salt solution tank through the delivery pipe and atomizes the salt solution. The mist outlet pipe is connected to the mist outlet nozzle, and the atomized salt solution enters the testing chamber through the mist outlet pipe and the mist outlet nozzle.
3. The durability testing device for solidified sea sand according to claim 2, characterized in that: The output end of the blower pipe is connected to the mist outlet pipe, and the blower pipe is connected to the mist outlet nozzle. The salt mist in the mist outlet pipe is sprayed out from the mist outlet nozzle by the gas flow in the blower pipe.
4. The durability testing device for solidified sea sand according to claim 1, characterized in that: The testing chamber has an air outlet on its side, and a temperature sensor and an air detector are provided on one side of the air outlet to measure the temperature inside the testing chamber and the element content in the air.
5. The durability testing device for solidified sea sand according to claim 1, characterized in that: The bottom of the testing box is equipped with a guide rail, on which two sets of symmetrical L-shaped clamps slide. Each L-shaped clamp has a through hole running from front to back. The through hole is used to increase the contact area between the sea sand solidified soil sample and the air. The two sets of clamps slide on the guide rail to hold the sea sand solidified soil sample.
6. The durability testing device for solidified sea sand according to claim 5, characterized in that: The bottom of the testing box is provided with two sets of first sliding grooves and two sets of sliding rods. The two sets of sliding rods are respectively connected to the two ends of the two sets of guide rails, and the two sets of sliding rods slide in the two sets of first sliding grooves respectively.
7. The durability testing device for solidified sea sand according to claim 6, characterized in that: The flip cover has a second sliding groove on the side near the guide rail. When the flip cover is opened and laid flat, the first sliding groove connects with the second sliding groove, and the slide rod slides from the first sliding groove to the second sliding groove.