CN210665327U - Concrete test piece test equipment - Google Patents
Concrete test piece test equipment Download PDFInfo
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- CN210665327U CN210665327U CN201921410144.9U CN201921410144U CN210665327U CN 210665327 U CN210665327 U CN 210665327U CN 201921410144 U CN201921410144 U CN 201921410144U CN 210665327 U CN210665327 U CN 210665327U
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Abstract
The utility model is suitable for a concrete durability monitoring technology field especially relates to a concrete test piece test equipment, concrete test piece test equipment includes test piece testing arrangement for exert pressure and test concrete test piece inside humiture, the pressure that bears and the stress that the atress produced to the concrete test piece; the high-low temperature alternating damp-heat environment simulation system is used for accommodating the test piece testing device and providing a high-low temperature alternating damp-heat environment; the control and monitoring system is used for controlling the high-low temperature alternating damp-heat environment simulation system, providing a high-low temperature alternating damp-heat environment and acquiring data of the test piece testing device; and the data conducting wire is used for connecting the test piece testing device and the control and monitoring system. Through the utility model discloses a concrete test piece test equipment can test the influence that concrete test piece pressurized caused to concrete durability under the humid hot ambient condition of high low temperature reversal.
Description
Technical Field
The utility model belongs to the technical field of concrete durability monitoring, especially, relate to a concrete test piece test equipment.
Background
The microenvironment in the concrete is closely related to durability factors such as concrete freeze-thaw damage, carbonization, chloride diffusion, reinforcement corrosion in the concrete and the like, and is one of the main major factors influencing the durability of the concrete.
At present, a concrete axle center compression test system can test the compression of concrete under an ultralow temperature environment, and liquid nitrogen is connected with an ultralow temperature environment box to maintain the ultralow temperature.
Although the method can test the influence of concrete on the durability of the concrete under the ultralow temperature environment when the concrete is pressed, the method has single environmental influence factor and cannot test the influence of the concrete on the durability of the concrete under other environmental conditions when the concrete is pressed.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a concrete test piece test equipment, it is comparatively single to aim at solving the environmental impact factor, the problem of the influence that can't test caused concrete durability under other environmental conditions.
The embodiment of the utility model provides a realize like this, a concrete sample test equipment, concrete sample test equipment includes:
the device is used for applying pressure to the concrete test piece and measuring the temperature and humidity inside the concrete test piece, the pressure born by the concrete test piece and the strain generated by stress;
the high-low temperature alternating damp-heat environment simulation system is used for accommodating the test piece testing device and providing a high-low temperature alternating damp-heat environment; and
and the control and monitoring system is used for controlling the high-low temperature alternating damp-heat environment simulation system to provide a high-low temperature alternating damp-heat environment and acquiring data of temperature and humidity, bearing pressure and strain generated by stress in the concrete test piece.
Preferably, the test piece testing device comprises a concrete test piece, a fixing unit, a pressure applying unit and a measuring unit;
the fixing unit is used for fixing the concrete sample and the pressure applying unit;
the pressure applying unit is used for applying pressure to the concrete sample;
and the measuring unit is used for measuring the temperature and humidity inside the concrete test piece, the borne pressure and the strain generated by stress.
Preferably, the fixing unit comprises an upper fixed bearing plate, a middle movable bearing plate and a lower fixed bearing plate;
the upper fixed bearing plate, the middle movable bearing plate and the lower fixed bearing plate are connected into an integral structure through two or more screws;
the concrete test piece is arranged between the middle movable bearing plate and the lower fixed bearing plate;
the pressure applying unit is arranged between the middle movable bearing plate and the upper fixed bearing plate.
Preferably, the measurement unit includes:
the pressure sensor is used for measuring the pressure born by the concrete test piece;
the temperature and humidity sensor is used for measuring the temperature and humidity inside the concrete test piece; and
and the strain sensor is used for measuring the strain generated by the stress of the concrete test piece.
Preferably, the temperature and humidity sensor is pre-embedded in the center of the axis of the concrete sample, and the strain sensor is arranged on the side surface of the concrete sample.
Preferably, the pressure applying unit comprises a hydraulic jack, and the hydraulic jack is fixedly connected with the upper fixed bearing plate and is abutted against the pressure sensor.
Preferably, the hydraulic system of the hydraulic jack is controlled by the control and monitoring system.
Preferably, the concrete sample testing apparatus further includes:
and the data transmission line is used for connecting the control and monitoring system with the pressure sensor and the strain sensor respectively, and is connected with the temperature and humidity sensor and the control and monitoring system through a data line through hole in the lower fixed bearing plate.
Preferably, the upper fixed bearing plate, the middle movable bearing plate and the lower fixed bearing plate are provided with through holes corresponding in position, the through holes are used for passing through the screw rods, the upper fixed bearing plate and the lower fixed bearing plate are fixed on the screw rods through fixing nuts, and the middle movable bearing plate is positioned on the screw rods through limiting nuts.
Preferably, the number of the through holes on the upper fixed bearing plate, the middle movable bearing plate and the lower fixed bearing plate is 2, 3 or more than 3.
The embodiment of the utility model provides a pair of concrete sample test equipment, exert pressure and measure the inside humiture of concrete sample, the pressure that bears and the meeting an emergency that the atress produced to the concrete sample through setting up test piece testing arrangement, control high low temperature reversal damp and hot environment analog system through control and monitoring system and provide high low temperature reversal damp and hot environment and gather the inside humiture of test piece testing arrangement, the data of meeting an emergency that bearing pressure and atress produced for test piece testing arrangement. The concrete test piece testing equipment provided by the invention is provided with the test piece testing device, the high-low temperature alternating damp-heat environment simulation system and the control and monitoring system to test the concrete durability influence factors, and can test the influence of the concrete test piece on the concrete durability under the high-low temperature alternating damp-heat environment condition when the concrete test piece is pressed.
Drawings
Fig. 1 is a three-dimensional structure diagram of a concrete sample testing device provided by an embodiment of the present invention;
fig. 2 is a front view of a test piece testing device provided by an embodiment of the present invention;
fig. 3 is an axonometric view of a test piece testing device provided by an embodiment of the present invention;
fig. 4 is a top view of a test piece testing apparatus provided in an embodiment of the present invention;
fig. 5 is an exploded view of a test piece testing apparatus provided in an embodiment of the present invention;
in the drawings: 1. a test piece testing device; 2. a high-low temperature alternating damp-heat environment simulation system; 3. a control and monitoring system; 4. a hydraulic system; 5. a data conducting line; 6. a bearing plate is fixed on the upper part; 7. a lower fixed bearing plate; 8. a middle movable deck plate; 9. a screw; 10. fixing a nut; 11. a limit nut; 12. a hydraulic jack; 13. a pressure sensor; 14. a temperature and humidity sensor; 15. a strain sensor; 16. a data via; 17. concrete test pieces.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description is provided for the specific embodiments of the present invention.
The embodiment of the utility model provides a pair of concrete sample test equipment, as shown in figure 1, concrete sample test equipment includes:
the test piece testing device 1 is used for applying pressure to the concrete test piece 17 and testing the temperature and humidity inside the concrete test piece 17, the pressure born by the concrete test piece and the stress generated by stress;
the high-low temperature alternating damp-heat environment simulation system 2 is used for accommodating the test piece testing device 1 and providing a high-low temperature alternating damp-heat environment; and
and the control and monitoring system 3 is used for controlling the high-low temperature alternating damp-heat environment simulation system 2 to provide a high-low temperature alternating damp-heat environment and acquiring data of the internal temperature, humidity, bearing pressure and strain generated by stress of the concrete test piece 17 in the test piece testing device 1.
The embodiment of the utility model provides an in, measure the inside humiture of concrete sample 17, the pressure that bears and the meeting an emergency that the atress produced through setting up test piece testing arrangement 1, control high low temperature reversal damp and hot environment analog system 2 for test piece testing arrangement 1 provides high low temperature reversal damp and hot environment and gather the data that meet an emergency that concrete sample 17's inside humiture, the pressure that bears and atress produced among test piece testing arrangement 1 through control and monitoring system 3. The utility model provides a concrete sample test equipment has set up test piece testing arrangement 1, high low temperature reversal damp and hot environment analog system 2, control and monitoring system 3 and has tested the influence factor that causes the concrete durability, can test the influence that the concrete sample pressurized caused the concrete durability under the damp and hot environmental condition of high low temperature reversal.
The utility model discloses an in the example, pressure, stress and inside humiture data that concrete bore can be measured to test piece testing arrangement 1. The high-low temperature alternating humid and hot environment simulation system 2 adopts a programmable test box and comprises a test box body, a refrigeration system, a temperature system, a humidity system, an air circulation system and a sensor system; the test box body is used for placing the test piece testing device 1, the temperature system mainly comprises a high-power resistance wire, and a heater is arranged on the bottom plate of the test box; the refrigeration system adopts mechanical refrigeration and auxiliary liquid nitrogen refrigeration, the mechanical refrigeration adopts vapor compression refrigeration, and mainly comprises a compressor, a condenser, a throttling mechanism and an evaporator, an evaporation condenser is used for connecting a high-temperature part and a low-temperature part, the high-temperature part adopts a condensing agent HP80 for refrigeration, and the low-temperature part adopts R23 for refrigeration; the sensor system comprises a temperature sensor and a humidity sensor, and is used for measuring the temperature and the humidity in the test chamber, so that the temperature and the humidity of the test chamber can be conveniently controlled; the humidity system is divided into a humidifying subsystem and a dehumidifying subsystem, the humidifying mode adopts a steam humidifying method, namely low-pressure steam is directly injected into the test box for humidification, the humidifying method has strong humidifying capacity, and the dehumidifying mode adopts mechanical refrigeration dehumidifying, namely air is cooled to be below dew point temperature, so that water vapor with moisture content larger than saturated moisture content is condensed and separated out, and the temperature is reduced; the air circulation system includes a centrifugal fan and a motor for driving the centrifugal fan to operate, so that air in the test chamber can be circulated. The control and monitoring system 3 is composed of a control module and a monitoring module, the control module is divided into a test box control module and a hydraulic jack control module, a controller of the test box control module adopts PID control, and the hydraulic jack control module adopts a singlechip embedded design technology to control the opening and closing of a valve, such as a chip AT89C51 singlechip and a chip 8521 singlechip; the monitoring module comprises a temperature and humidity display, a pressure display and a stress display, and is used for displaying the temperature and humidity of the concrete sample 17, the borne pressure and the stress generated after the compression deformation.
In an embodiment of the utility model, control and monitoring system 3 is used for controlling high low temperature reversal damp and hot environment analog system 2, set up the high low temperature damp and hot cycle parameter of high low temperature reversal damp and hot proof box able to programme according to the experimental requirement, thereby provide the damp and hot analog environment of high low temperature reversal for test piece testing arrangement 1, and gather the inside humiture of concrete test piece 17, the data of meeting an emergency that the pressure and the atress that bear produced, just so can test the influence that concrete test piece 17 pressurized caused under the damp and hot environmental condition of high low temperature reversal to concrete durability under.
In an embodiment of the present invention, as shown in fig. 2, 3, 4, and 5, the test piece testing device includes a concrete test piece 17, a fixing unit, a pressure applying unit, and a measuring unit; the fixing unit is used for fixing the concrete sample 17 and the pressure applying unit; the pressure applying unit is used for applying pressure to the concrete specimen 17; the measuring unit is used for measuring the temperature and humidity in the concrete sample 17, the pressure born by the concrete sample and the strain generated by stress.
As a preferred embodiment of the present invention, the fixing unit includes an upper fixed bearing plate 6, a middle movable bearing plate 8, and a lower fixed bearing plate 7; the concrete test piece 17 is arranged between the middle movable bearing plate 8 and the lower fixed bearing plate 7; the pressure applying unit is arranged between the middle movable bearing plate 8 and the upper fixed bearing plate 6; the upper fixed bearing plate 6, the middle movable bearing plate 8 and the lower fixed bearing plate 7 are sequentially penetrated by the screw 9 from top to bottom, and the cylindrical concrete test piece 17 and the pressure applying unit are fixed by the upper fixed bearing plate 6, the middle movable bearing plate 8, the lower fixed bearing plate 7, the screw 9, the fixing nut 10 and the limiting nut 11, so that the stability of the concrete test piece 17 and the pressure applying unit is improved.
As another preferred embodiment of the present invention, the measuring unit includes a pressure sensor 13 for measuring the pressure applied to the concrete sample 17; the temperature and humidity sensor 14 is used for measuring the temperature and humidity inside the concrete sample 17; and the strain sensor 15 is used for measuring the strain generated by the stress of the concrete sample 17, and the arrangement of the measuring unit can measure the data of the internal microenvironment of the concrete sample 17 in the high-low temperature alternating humid and hot environment when the concrete sample 17 is stressed and the strain generated by the stress of the concrete sample 17.
As the utility model discloses a another kind of preferred embodiment, temperature and humidity sensor 14 is pre-buried in concrete sample 17 axis center department can measure the humiture of the inside microenvironment of concrete sample 17, and strain sensor 15 sets up in concrete sample 17's side, can measure the meeting an emergency that concrete sample 17 produced.
As the utility model discloses a another kind of preferred embodiment, the unit is applyed to pressure includes hydraulic jack 12, hydraulic jack 12 and the 6 fixed connection of last fixed bearing board, and pressure sensor 13 sets up in the top of middle activity bearing board 8, when hydraulic jack 12 directly applys pressure to middle activity bearing board 8 through the pressurization, pressure sensor 13 is tightly supported by hydraulic jack 12 and then can measure the pressure that hydraulic jack 12 was applyed, middle activity bearing board 8 changes the concentrated power that receives into the equipartition load, evenly apply to concrete test piece 17, with the actual pressure-bearing state of simulation concrete test piece 17, make concrete test piece 17 when high and low temperature reversal damp and hot environment, also receive the effect of pressure simultaneously, concrete test piece 17 can be in under high and low temperature reversal damp and hot environment and the pressurized condition simultaneously promptly.
As another preferred embodiment of the utility model, hydraulic system 4 of hydraulic jack 12 is controlled by control and monitoring system 3, control and monitoring system 3 exert pressure to concrete sample 17 through the stroke of controlling hydraulic system 4 and then controlling hydraulic jack 12, make concrete sample 17 be in under the pressurized condition.
As the utility model discloses a another kind of preferred embodiment, concrete test piece test equipment still includes data conduction line 5, be used for connecting pressure sensor 13 respectively with monitoring system 3 with control, strain sensor 15, data conduction line 5 is still connected with temperature and humidity sensor 14 through data line through-hole 16 in lower fixed bearing board 7, make control and monitoring system 3 gather pressure sensor 13, strain sensor 15 and temperature and humidity sensor 14's data, monitor the condition of the inside humiture microenvironment of concrete and the strain of atress production under the pressurized condition in high and low temperature alternation moist heat environment to concrete test piece 17.
As the utility model discloses a another kind of preferred embodiment, go up fixed bearing board 6, middle activity bearing board 8 is the plectane with lower fixed bearing board 7, be provided with the corresponding through-hole in position along the circumference of board, the through-hole has 2, 3 or more than 3, be used for through screw rod 9, it fixes on screw rod 9 with fixed nut 10 for lower fixed bearing board 7 to go up fixed bearing board 6, middle activity bearing board 8 is fixed a position on screw rod 9 with stop nut 11, make test piece testing arrangement 1 more stable, screw rod 9 is along vertical laying to laying simultaneously, can control hydraulic jack 12 along the one-dimensional pressure of applying.
The embodiment of the utility model provides an in, measure the inside humiture of concrete test piece 17 and the pressure that bears through setting up test piece testing arrangement 1, control high low temperature reversal damp and hot environment analog system 2 for test piece testing arrangement 1 provides high low temperature reversal damp and hot environment and gather the data of meeting an emergency that concrete test piece 17's inside humiture, the pressure that bears and atress produced among test piece testing arrangement 1 through control and monitoring system 3. The utility model provides a concrete sample test equipment has set up test piece testing arrangement 1, high low temperature reversal damp and hot environment analog system 2, control and monitoring system 3 and has tested concrete durability influence factor, can test the influence that concrete sample 17 pressurized caused concrete durability under the damp and hot environmental condition of high low temperature reversal.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A concrete specimen test apparatus, characterized in that the concrete specimen test apparatus includes:
the test piece testing device is used for applying pressure to the concrete test piece and measuring the temperature and humidity inside the concrete test piece, the pressure born by the concrete test piece and the strain generated by stress;
the high-low temperature alternating damp-heat environment simulation system is used for accommodating the test piece testing device and providing a high-low temperature alternating damp-heat environment; and
and the control and monitoring system is used for controlling the high-low temperature alternating damp-heat environment simulation system to provide a high-low temperature alternating damp-heat environment and acquiring data of temperature and humidity, bearing pressure and strain generated by stress in the concrete test piece.
2. The concrete specimen testing apparatus according to claim 1, wherein the specimen testing device includes a concrete specimen, a fixing unit, a pressure applying unit, a measuring unit;
the fixing unit is used for fixing the concrete sample and the pressure applying unit;
the pressure applying unit is used for applying pressure to the concrete sample;
and the measuring unit is used for measuring the temperature and humidity inside the concrete test piece, the borne pressure and the strain generated by stress.
3. The concrete specimen testing apparatus according to claim 2, wherein the fixing unit includes an upper fixed bearing plate, a middle movable bearing plate, a lower fixed bearing plate;
the upper fixed bearing plate, the middle movable bearing plate and the lower fixed bearing plate are connected into an integral structure through two or more screws;
the concrete test piece is arranged between the middle movable bearing plate and the lower fixed bearing plate;
the pressure applying unit is arranged between the middle movable bearing plate and the upper fixed bearing plate.
4. A concrete specimen testing apparatus according to claim 3, characterized in that the measuring unit includes:
the pressure sensor is used for measuring the pressure born by the concrete test piece;
the temperature and humidity sensor is used for measuring the temperature and humidity inside the concrete test piece; and
and the strain sensor is used for measuring the strain generated by the stress of the concrete test piece.
5. The concrete specimen testing device according to claim 4, wherein the temperature and humidity sensor is embedded in the center of the axis of the concrete specimen, and the strain sensor is disposed on the side surface of the concrete specimen.
6. The concrete specimen testing apparatus of claim 4, wherein the pressure applying unit includes a hydraulic jack fixedly connected to the upper fixed bearing plate and abutting the pressure sensor.
7. A concrete specimen testing apparatus according to claim 6, characterised in that the hydraulic system of the hydraulic jack is controlled by the control and monitoring system.
8. The concrete specimen testing apparatus of claim 4, further comprising:
and the data transmission line is used for connecting the control and monitoring system with the pressure sensor and the strain sensor respectively, and is connected with the temperature and humidity sensor and the control and monitoring system through a data line through hole in the lower fixed bearing plate.
9. The concrete specimen test equipment as claimed in claim 3, wherein the upper fixed bearing plate, the middle movable bearing plate and the lower fixed bearing plate are provided with through holes with corresponding positions for passing through the screw rod, the upper fixed bearing plate and the lower fixed bearing plate are fixed on the screw rod by fixing nuts, and the middle movable bearing plate is positioned on the screw rod by a limiting nut.
10. The concrete specimen testing apparatus of claim 9, wherein the through holes on the upper fixed bearing plate, the intermediate movable bearing plate, and the lower fixed bearing plate are 2, 3, or more than 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921410144.9U CN210665327U (en) | 2019-08-28 | 2019-08-28 | Concrete test piece test equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921410144.9U CN210665327U (en) | 2019-08-28 | 2019-08-28 | Concrete test piece test equipment |
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| CN210665327U true CN210665327U (en) | 2020-06-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411853A (en) * | 2019-08-28 | 2019-11-05 | 吉林大学 | A kind of concrete sample testing equipment |
| CN113109159A (en) * | 2021-04-02 | 2021-07-13 | 东南大学 | Medium transmission test device and method for concrete under temperature-osmotic pressure-load coupling effect |
-
2019
- 2019-08-28 CN CN201921410144.9U patent/CN210665327U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411853A (en) * | 2019-08-28 | 2019-11-05 | 吉林大学 | A kind of concrete sample testing equipment |
| CN113109159A (en) * | 2021-04-02 | 2021-07-13 | 东南大学 | Medium transmission test device and method for concrete under temperature-osmotic pressure-load coupling effect |
| CN113109159B (en) * | 2021-04-02 | 2022-03-08 | 东南大学 | Testing method of medium transmission testing device of concrete under temperature-osmotic pressure-load coupling effect |
| US11821876B2 (en) | 2021-04-02 | 2023-11-21 | Southeast University | Test method of medium transmission test device for concrete under temperature-osmotic pressure-load coupling effect |
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