A device for detecting the linear expansion rate of a crack-resistant agent.

Abstract

This invention provides a self-curing linear expansion rate testing device for reinforced crack-resistant agents, comprising: a device body, a water curing tank at the top of the device body for holding water and the sample to be tested, several pairs of infrared ranging probes disposed within the side wall of the water curing tank, a heating device disposed at the bottom of the water curing tank, and a heat dissipation device disposed within the device body. This invention avoids measurement errors caused by corrosion, wear, and insecure fixing of linear expansion rate nails, thus improving measurement accuracy; it allows the sample to be heated uniformly, more closely resembling the objective application scenario of the crack-resistant agent; it can relatively accurately control sample defects, thereby improving the objectivity of the test; and it can simultaneously test multiple groups of samples, significantly improving testing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of building material testing technology, specifically relating to a device for detecting the expansion rate of self-curing linear expansion of reinforcing crack-resistant agents. Background Technology

[0002] Crack-resistant enhancers are primarily used to improve the crack resistance of cement mortar and concrete. By being added internally, they enhance the structure's self-waterproofing properties and solve plaster cracking problems, and are now widely used in construction, bridges, and highways. This product works through a dual physical and chemical process, forming a three-dimensional structure that slows moisture evaporation and reduces shrinkage and settlement, thereby lowering the risk of cracking while simultaneously improving impermeability, freeze-thaw resistance, and earthquake resistance.

[0003] According to JC / T313 "Test Method for Expansion Rate of Expansive Cement", the expansion rate testing process of the crack-resistant agent product line is highly dependent on equipment such as measuring nail heads and length comparators. On the one hand, measurement errors are caused by reasons such as corrosion, wear, and loose fixing of the testing nail heads. On the other hand, the test data is unstable and unrepresentative due to environmental temperature and humidity and improper human operation. Therefore, improving the testing efficiency and accuracy is particularly important for the research and development and production of crack-resistant agent products.

[0004] Chinese invention patent application CN115407055A discloses a concrete shrinkage and expansion detector, specifically comprising: a base, a lead screw and multiple guide columns mounted on the base, a sample placement seat horizontally movably mounted on the lead screw and guide columns, and a detection chamber fixed on the base and located above the sample placement seat; wherein the sample placement seat includes a base mounted on the lead screw and multiple guide columns, a heating groove and a sample groove spaced apart on the base; wherein the base is mounted on the lead screw via a lead screw nut seat, and the lead screw is driven by a lead screw motor to move the sample placement seat horizontally on the lead screw and guide columns. This patent claims that by utilizing multiple horizontally symmetrically mounted horizontal distance measuring instruments within the detection chamber and multiple vertical distance measuring instruments mounted at the top of the detection chamber, it facilitates accurate detection of the concrete sample in both horizontal and vertical directions; furthermore, by installing a heating groove within the sample groove, it facilitates the rapid reaching of the concrete sample to its final setting state, thereby significantly improving detection efficiency.

[0005] However, the aforementioned patented technologies have problems such as inaccurate heating temperature control and inaccurate detection due to excessively fast acceleration rates. Utility Model Content

[0006] To address the problems existing in the prior art, this utility model provides a self-curing linear expansion rate detection device for enhanced crack resistance agents, aiming to objectively simulate the linear expansion rate of enhanced crack resistance agents under real environmental conditions, achieve precise temperature control, and improve detection accuracy.

[0007] Based on one aspect of this utility model, a self-curing linear expansion rate testing device for reinforcing crack-resistant agents is provided, comprising: a device body, a water curing tank for holding water and the sample to be tested, disposed on the top of the device body, a plurality of pairs of infrared ranging probes disposed in the side wall of the water curing tank, a heating device disposed at the bottom outside the water curing tank, and a heat dissipation device disposed in the device body.

[0008] As a preferred embodiment of the self-curing linear expansion rate detection device for reinforcing crack-resistant agents of this utility model, the plurality of pairs of infrared ranging probes are three or more pairs, and each pair of probes is set facing each other on two inner sidewalls (for example, on the left and right inner sidewalls, the distance between the two relative to the boundary of their respective sidewalls is the same). As for the height of the probe, in order to ensure the smooth progress of the detection, its setting should meet the requirement that the probe can accurately measure the distance change after the sample expands during the detection.

[0009] As a preferred embodiment of the self-curing linear expansion rate detection device for reinforcing crack-resistant agents according to this utility model, the device further includes a temperature sensor disposed in the water curing tank for detecting the temperature inside the water curing tank.

[0010] As a preferred embodiment of the self-curing linear expansion rate detection device for reinforcing crack-resistant agents according to this utility model, the device further includes a controller disposed on the device body for controlling the heating device and the heat dissipation device, wherein the controller is electrically connected to the temperature sensor, the heating device and the heat dissipation device respectively.

[0011] As a preferred embodiment of the self-protecting linear expansion rate detection device for reinforcing crack-resistant agents according to this utility model, the device further includes a display screen disposed on the device body, and the display screen is electrically connected to the temperature sensor and the infrared ranging probe.

[0012] As a preferred embodiment of the self-protecting linear expansion rate detection device for reinforcing crack-resistant agents according to this utility model, the display screen further includes a control module for opening and closing the controller, and the control module is electrically connected or electrically signal connected to the controller.

[0013] As a preferred embodiment of the self-curing linear expansion rate detection device for reinforcing crack-resistant agents according to this utility model, the heating device includes a resistance wire, which is uniformly arranged at the bottom of the water curing tank.

[0014] As a preferred embodiment of the self-protecting linear expansion rate detection device for reinforcing crack-resistant agents according to this utility model, the heat dissipation device is a fan, and ventilation holes or ventilation slots are provided on the side wall of the device body facing the fan.

[0015] As a preferred embodiment of the self-protecting linear expansion rate detection device for reinforcing crack-resistant agents according to this utility model, the device further includes a power supply system, which is electrically connected to each power-requiring component.

[0016] Furthermore, as is well known in the art, for solutions in this utility model that do not include a power supply system, the power-requiring components in the device (such as heating devices, heat dissipation devices, infrared ranging probes, temperature sensors, displays, control devices, etc.) will necessarily be electrically connected to an external power supply system, either as a whole or separately, to ensure the normal operation of the detection device.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This utility model uses an infrared ranging probe for measurement, which avoids the measurement errors caused by the corrosion, wear, and loose fixing of linear expansion nail heads, thus improving the measurement accuracy;

[0019] 2. This utility model, by setting up a water curing tank, uses water bath heating to ensure that the sample is heated evenly, which is closer to the objective application scenario of the crack-resistant agent;

[0020] 3. By using heating and heat dissipation devices in combination, this utility model can relatively accurately control the problem of the sample, thereby improving the objectivity of the test;

[0021] 4. By setting up multiple pairs of infrared ranging probes, this utility model can simultaneously detect multiple groups of samples, greatly improving detection efficiency. Attached Figure Description

[0022] Figure 1 A schematic diagram of the overall structure of the detection device of this utility model;

[0023] Figure 2 Top view of the water curing tank in the detection device of this utility model;

[0024] Figure 3 A schematic diagram of the bottom structure of the water curing tank in the detection device of this utility model;

[0025] Among them, 1-device body, 2-water curing tank, 3-infrared ranging probe, 4-resistance wire, 5-ventilation slot, 6-temperature sensor, and 7-display screen. Detailed Implementation

[0026] The technical solutions in the embodiments will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] See Figure 1-2 In one specific embodiment of the utility model, a self-curing linear expansion rate testing device for reinforcing crack-resistant agents is provided, comprising: a device body 1, a water curing tank 2 set on the top of the device body for holding water and the sample to be tested, three pairs of infrared ranging probes 3 set in the side wall of the water curing tank 2, a heating device set at the bottom of the water curing tank 2, a heat dissipation device set in the device body 1, a temperature sensor 6 set in the water curing tank 2 for detecting the temperature inside the water curing tank 2, and a controller set on the device body 1 for controlling the heating device and the heat dissipation device. The controller is electrically connected to the temperature sensor 6, the heating device and the heat dissipation device respectively, and each power-required component can be electrically connected to an external power supply system through a line.

[0028] The operating principle of this device is as follows: Power is connected, and an appropriate amount of water (enough to submerge the sample) is injected into the water conditioning tank. The sample is then placed in the tank, and the heating device is activated via a controller. As the water temperature rises, the sample expands due to the heat. The corresponding distance change is recorded by an infrared ranging probe, and the linear expansion rate of the sample can be calculated. During heating, the water bath temperature is monitored in real-time based on the temperature transmitted by the temperature sensor. When the water bath temperature exceeds the detection temperature, the controller stops the heating device and activates the cooling device to lower the water bath temperature. Throughout the experiment, the heating and cooling methods can be dynamically adjusted in real-time according to temperature fluctuations, thus enabling precise control of the detection temperature and improving the accuracy of the test results within an industrial setting. Furthermore, the controller in this embodiment can be either manual or automatic. When an automatic controller is selected, the predicted temperature threshold and control mode can be pre-stored in the controller's processing module to initiate corresponding control programs based on temperature changes.

[0029] See you again Figure 1 In another specific embodiment of this utility model, the device further includes a display screen 7 disposed on the device body 1. The display screen 7 is electrically connected to the temperature sensor 6 and the infrared ranging probe 3 to display temperature data and measurement distance change data.

[0030] See you again Figure 1In another specific embodiment of this utility model, the display screen further includes a control module for turning the controller on and off. The control module is electrically connected or signal-connected to the controller. Thus, the heating and heat dissipation methods can be controlled via the control module on the display screen.

[0031] See Figure 3 In another specific embodiment of this utility model, the heating device includes a resistance wire 4, which is evenly arranged at the bottom of the water curing tank to achieve uniform heating.

[0032] See you again Figure 1 In another specific embodiment of this utility model, the heat dissipation device is a fan (not shown in the figure) and a ventilation slot 5 provided on the side wall of the device body 1. The ventilation slot 5 is on the same side as the air outlet side of the fan, so that heat dissipation can be carried out well.

[0033] It should be noted that, based on the above embodiments of this utility model, those skilled in the art can fully realize the scope of the independent claims and dependent claims of this utility model, and the implementation process and methods are the same as those in the above embodiments; and the parts of this utility model not described in detail belong to the well-known technology in the art. However, the protection scope of this utility model is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A device for detecting the expansion rate of a self-curing linear expansion rate for crack-resistant agents, characterized in that, include: The device body, a water curing tank at the top of the device body for holding water and the sample to be tested, several pairs of infrared ranging probes installed in the side wall of the water curing tank, a heating device installed at the bottom of the water curing tank, and a heat dissipation device installed in the device body.

2. A self-activated wire expansion rate testing device for a reinforcing anti-cracking agent according to claim 1, characterized in that, The number of infrared ranging probes is three or more.

3. A self-activated expansion rate testing device for an enhanced anti-cracking agent according to claim 1 or 2, characterized in that, The device also includes a temperature sensor disposed inside the water curing tank for detecting the temperature inside the water curing tank.

4. A self-sealing wire expansion rate testing device for an enhanced anti- cracking agent as set forth in claim 3, wherein The device also includes a controller disposed on the device body for controlling the heating device and the heat dissipation device, the controller being electrically connected to the temperature sensor, the heating device and the heat dissipation device respectively.

5. A self-seal string expansion rate testing device for an enhanced anti-crack agent as set forth in claim 4, wherein The device also includes a display screen disposed on the device body, the display screen being electrically connected to the temperature sensor and the infrared ranging probe.

6. A self-seal string expansion rate testing device for an enhanced anti-crack agent as set forth in claim 5, wherein The display screen also includes a control module for turning the controller on and off, and the control module is electrically connected or electrically signal connected to the controller.

7. A self-seal string expansion rate testing device for an enhanced anti- cracking agent as set forth in claim 6, wherein The heating device includes resistance wires, which are evenly arranged at the bottom of the water curing tank.

8. A self-seal string expansion rate testing device for an enhanced anti- crack agent as set forth in claim 7, wherein The heat dissipation device is a fan, and ventilation holes or ventilation slots are provided on the side wall of the device body facing the fan.

9. A self-seal string expansion rate testing device for an enhanced anti-crack agent as claimed in claim 7 or 8, characterized in that, The device also includes a power supply system, which is electrically connected to each of the power-required components.

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