Semi-rigid base material cracking simulation test device

Abstract

The utility model belongs to the technical field of building material detection, and particularly relates to a semi-rigid base material cracking simulation test device which comprises a test assembly, comprising a constant-temperature box, supporting foot stands arranged at the four corners of the bottom of the constant-temperature box, a box door arranged on the front surface of the constant-temperature box, a stress induction generator arranged at the bottom of an inner cavity of the constant-temperature box, atomization humidifiers arranged on the two sides of the inner cavity of the constant-temperature box, a temperature and humidity sensor arranged on one side of the inner cavity of the constant-temperature box and a controller arranged on one side of the constant-temperature box. The controller is electrically connected with the temperature and humidity sensor; the pressurizing assembly comprises a pressurizing air cylinder arranged at the top of the constant-temperature box, a pressing plate arranged at the output end of the pressurizing air cylinder and extending to an inner cavity of the constant-temperature box, and a pressure sensor arranged at the joint of the pressing plate and the pressurizing air cylinder; in the using process, not only can the influence of the environment temperature and the environment humidity on the semi-rigid base structure be simulated, but also the influence of the pressure on the semi-rigid base structure can be simulated, and the testing efficiency and accuracy can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building material detection, in particular to a semi-rigid base material cracking simulation test device. Background Art

[0002] Semi-rigid base layers offer high stiffness, stability, and load-bearing capacity, providing stable support for the surface layer and significantly reducing bending tensile stress and fatigue at the bottom of the surface layer. Furthermore, they are inexpensive and readily available, making them a predominant base layer structure type for my country's high-grade highways. However, with the widespread use of semi-rigid asphalt pavements, serious problems have been identified. Due to the influence of temperature and humidity, semi-rigid base layers are prone to forming micro- and macro-cracks within the material. Shortly after the pavement surface is laid and opened to traffic, these cracks in the base layer are reflected back into the pavement surface, either independently or through the combined effects of temperature and load fields. This results in premature failure, impacting the pavement's service performance and durability. Therefore, a rational evaluation of the crack resistance of semi-rigid base materials is crucial for guiding raw material selection and pavement structure durability design.

[0003] In the existing technology, the thermal shrinkage and fracture performance of the semi-rigid base structure under changes in ambient temperature and humidity is simulated. However, this method cannot simulate the influence of pressure on the semi-rigid base structure and has certain limitations.

[0004] Based on the above problems, we propose a new type of semi-rigid base material cracking simulation test device. Summary of the Invention

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] In view of the problems existing in the existing technology, the present utility model is proposed.

[0007] Therefore, the purpose of the present invention is to provide a semi-rigid base material cracking simulation test device, which can not only simulate the influence of ambient temperature and ambient humidity on the semi-rigid base structure during use, but also simulate the influence of pressure on the semi-rigid base structure, thereby improving the test efficiency and accuracy.

[0008] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0009] A semi-rigid base material cracking simulation test device, comprising:

[0010] The test assembly includes a constant temperature chamber, support legs arranged at the four corners of the bottom of the constant temperature chamber, a chamber door arranged on the front surface of the constant temperature chamber, a stress induction generator arranged at the bottom of the constant temperature chamber cavity, a misting humidifier arranged on both sides of the constant temperature chamber cavity, a temperature and humidity sensor arranged on one side of the constant temperature chamber cavity, and a control arranged on one side of the constant temperature chamber, wherein the controller is electrically connected to the temperature and humidity sensor;

[0011] The pressurizing component includes a pressurizing cylinder arranged on the top of the constant temperature box, a pressure plate arranged at the output end of the pressurizing cylinder and extending to the inner cavity of the constant temperature box, and a pressure sensor arranged at the connection between the pressure plate and the pressurizing cylinder, and the pressure sensor is electrically connected to the controller.

[0012] As a preferred solution of the semi-rigid base material cracking simulation test device described in the present invention, a fixing seat is provided at the bottom of the supporting leg, and an anti-slip pad is provided at the bottom of the fixing seat.

[0013] As a preferred solution of the semi-rigid base material cracking simulation test device described in the utility model, the stress induction generator is arranged directly below the pressing plate.

[0014] As a preferred solution of the semi-rigid base material cracking simulation test device described in the utility model, the front surface of the box door is provided with an observation window and a door handle.

[0015] As a preferred solution of the semi-rigid base material cracking simulation test device described in the utility model, the inner side wall of the constant temperature box is provided with a thermal insulation layer.

[0016] As a preferred solution of the semi-rigid base material cracking simulation test device described in the utility model, the front surface of the controller is provided with a display unit and a key module.

[0017] As a preferred solution of the semi-rigid base material cracking simulation test device described in the utility model, a fill light is also provided on the top of the inner cavity of the constant temperature box.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The influence of ambient temperature on the semi-rigid base structure can be simulated by using a constant temperature box. The influence of ambient humidity on the semi-rigid base structure can be simulated by arranging an atomizing humidifier in the inner cavity of the constant temperature box. The influence of pressure on the semi-rigid base structure can be simulated by cooperating with the pressurized cylinder and the pressure plate, thereby improving the test efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0021] Figure 1 This is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the test assembly structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the pressurizing component of the present utility model.

[0024] In the figure, 100 test assembly, 110 constant temperature chamber, 120 support stand, 130 chamber door, 140 stress induction generator, 150 atomizing humidifier, 160 temperature and humidity sensor, 170 controller, 200 pressurizing assembly, 210 pressurizing cylinder, 220 pressure plate, 230 pressure sensor. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0029] The utility model provides the following technical solutions: a semi-rigid base material cracking simulation test device, which can not only simulate the effects of ambient temperature and humidity on the semi-rigid base structure during use, but also simulate the effects of pressure on the semi-rigid base structure, thereby improving test efficiency and accuracy;

[0030] Figures 1 to 3 The figure shows a schematic structural diagram of an embodiment of a semi-rigid base material cracking simulation test device of the present invention, the main body of which includes a test assembly 100 and a pressurizing assembly 200;

[0031] The test assembly 100 includes a constant temperature box 110, support legs 120 installed at the four corners of the bottom of the constant temperature box 110, a box door 130 installed on the front surface of the constant temperature box 110, a stress induction generator 140 installed at the bottom of the inner cavity of the constant temperature box 110, an atomizing humidifier 150 installed on both sides of the inner cavity of the constant temperature box 110, a temperature and humidity sensor 160 installed on one side of the inner cavity of the constant temperature box 110, and a control installed on one side of the constant temperature box 110, and the controller 170 is electrically connected to the temperature and humidity sensor 160, a fixing seat is installed at the bottom of the support legs 120, and a non-slip pad is bonded to the bottom of the fixing seat, the stress induction generator 140 is installed just below the pressure plate 220, and the box An observation window and a door handle are installed on the front surface of the door 130. An insulation layer is bonded to the inner wall of the thermostat 110. A display unit and a key module are installed on the front surface of the controller 170. A fill light is also installed on the top of the inner cavity of the thermostat 110. Furthermore, the thermostat 110 is used to maintain a constant temperature. The support leg 120 is used to support the thermostat 110. The box door 130 is used to seal the thermostat 110. The stress induction generator 140 is used to simulate the constraint effect of the pavement structure on the semi-rigid base. The atomizing humidifier 150 is used for humidity simulation. The temperature and humidity sensor 160 is used for temperature and humidity detection. The controller 170 is used to receive signals from the temperature and humidity sensor 160 and the pressure sensor 230.

[0032] The pressurizing assembly 200 includes a pressurizing cylinder 210 installed on the top of the constant temperature box 110, a pressure plate 220 installed at the output end of the pressurizing cylinder 210 and extending to the inner cavity of the constant temperature box 110, and a pressure sensor 230 installed at the connection between the pressure plate 220 and the pressurizing cylinder 210. The pressure sensor 230 is electrically connected to the controller 170. Furthermore, the pressurizing cylinder 210 is used to drive the pressure plate 220 to move downward, the pressure plate 220 is used to apply pressure to the material, and the pressure sensor 230 is used to detect pressure.

[0033] Combine Figure 1-Figure 3The present embodiment is a semi-rigid base material cracking simulation test device, and the specific operations are as follows: the influence of ambient temperature on the semi-rigid base structure can be simulated by using a constant temperature box 110; the influence of ambient humidity on the semi-rigid base structure can be simulated by arranging an atomizing humidifier 150 in the inner cavity of the constant temperature box 110; the influence of pressure on the semi-rigid base structure can be simulated by cooperating with the pressurized cylinder 210 and the pressure plate 220, thereby improving the test efficiency and accuracy.

[0034] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A semi-rigid base material cracking simulation test device, characterized in that: include: The test assembly (100) comprises a constant temperature box (110), support legs (120) arranged at the four corners of the bottom of the constant temperature box (110), a box door (130) arranged on the front surface of the constant temperature box (110), a stress induction generator (140) arranged at the bottom of the inner cavity of the constant temperature box (110), an atomizing humidifier (150) arranged on both sides of the inner cavity of the constant temperature box (110), a temperature and humidity sensor (160) arranged on one side of the inner cavity of the constant temperature box (110), and a control arranged on one side of the constant temperature box (110), wherein the controller (170) is electrically connected to the temperature and humidity sensor (160); The pressurizing assembly (200) comprises a pressurizing cylinder (210) arranged on the top of the thermostatic box (110), a pressure plate (220) arranged at the output end of the pressurizing cylinder (210) and extending to the inner cavity of the thermostatic box (110), and a pressure sensor (230) arranged at the connection between the pressure plate (220) and the pressurizing cylinder (210), wherein the pressure sensor (230) is electrically connected to the controller (170).

2. A semi-rigid base material cracking simulation test device according to claim 1, characterized in that: The bottom of the supporting leg (120) is provided with a fixing seat, and the bottom of the fixing seat is provided with an anti-slip pad.

3. A semi-rigid base material cracking simulation test device according to claim 1, characterized in that: The stress induction generator (140) is arranged directly below the pressing plate (220).

4. A semi-rigid base material cracking simulation test device according to claim 1, characterized in that: The front surface of the box door (130) is provided with an observation window and a door handle.

5. The semi-rigid base material cracking simulation test device according to claim 1, characterized in that: The inner side wall of the constant temperature box (110) is provided with a heat insulation layer.

6. The semi-rigid base material cracking simulation test device according to claim 1, characterized in that: The front surface of the controller (170) is provided with a display unit and a key module.

7. The semi-rigid base material cracking simulation test device according to claim 1, characterized in that: A fill light is also provided on the top of the inner cavity of the constant temperature box (110).

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