CN203396731U - Cement concrete test piece temperature testing device for simulating natural environment - Google Patents

Abstract

The utility model relates to a cement concrete test piece temperature testing device for simulating the natural environment. The cement concrete test piece temperature testing device for simulating the natural environment comprises a box body; the box body is internally provided with an environment control system, a test piece loading device and a data collecting system; the environment control system comprises a daylight simulation device, an air blowing device and a humidifier; the data collecting system comprises a damp and hot sensor and a temperature sensor. The cement concrete test piece temperature testing device for simulating the natural environment is simple in principle, is convenient to operate, is intuitive in test structure, can be used for evaluating the temperature influence of the environment to a test piece, and has the characteristics of good reliability and accurate determination.

Description

A temperature testing device for cement concrete specimens simulating natural environment

technical field

The utility model belongs to the technical field of road engineering test equipment, and relates to a test piece temperature test device, in particular to a cement concrete test piece temperature test device for simulating natural environment.

Background technique

The pavement structure exposed on the ground is completely under the influence of the natural environment. It has been subjected to the influence of the natural environment for a long time, and is subject to the combined effects of various meteorological factors such as solar radiation, night cooling, cold current, wind, rain, and snow. Under the action of the natural environment, the temperature of the road structure changes all the time, forming the temperature field of the road structure.

Under the action of temperature, the pavement structure produces temperature warping stress and temperature stretching stress. Under the action of temperature stress, the pavement is prone to cracks and other diseases, which have a certain impact on the long-term service life of the pavement. In the natural environment, the factors that have a greater impact on the temperature of the road surface are air temperature, solar radiation, wind speed, humidity and other factors.

At present, there is no instrument that can simulate the temperature transfer capability of cement concrete pavement structure in different natural environments indoors, and analyze the influence of radiation, air temperature and other factors on the pavement structure. All of them can only test the change of pavement temperature in the test road section. Condition. The utility model can conveniently and quickly measure the temperature absorption and transmission capabilities of different test pieces, and provides a certain reliable basis for solving the problem of temperature stress on the road surface.

Utility model content

The purpose of this utility model is to overcome the above-mentioned shortcoming of prior art, provide a kind of cement concrete specimen temperature test device that simulates natural environment, its principle is simple, easy to operate, test structure is intuitive, can be used for evaluating the temperature of environment to specimen The device has the characteristics of good reliability and accurate measurement.

The purpose of this utility model is to solve through the following technical solutions:

This cement concrete specimen temperature testing device simulating the natural environment comprises a box body, and an environment control system, a test piece loading device and a data acquisition system are arranged in the box body; device; the data acquisition system includes a damp heat sensor and a temperature sensor.

Further, a control module is provided outside the box, and the control module includes a light intensity control button, a humidity control button, and a wind speed control button. The sunlight simulation device adjusts the light intensity through the light intensity control button; Button adjustment; the blowing device adjusts the wind speed through the wind speed control button.

The sunlight simulating device mentioned above is a fluorescent lamp, which is arranged on the top of the box.

The above-mentioned specimen loading device includes a stage whose height can be adjusted through a bracket, and a specimen fixing device; the specimen fixing device seals the surroundings of the specimen, and the temperature sensor is fixed on the upper and lower surfaces of the specimen.

The above-mentioned data acquisition system also includes a display screen, which is connected with the damp heat sensor and the temperature sensor.

The utility model has the following beneficial effects:

(1) The utility model can well simulate the distribution of the temperature field of the test piece in different natural environments.

(2) The device of the utility model is easy to operate, economical and practical.

(3) The device test principle of the utility model is simple.

Description of drawings

Fig. 1 is a front view of a cement concrete specimen temperature testing device simulating natural environment;

Among them: 1 is sunlight simulation device; 2 is humidifier; 3 is blowing device; 4 is stage; 5 is specimen fixing device; 6 is specimen; 7 is humidity sensor; 8 is data line; 9 is display screen 10 is a temperature sensor; 11 is a light intensity button; 12 is a humidity control button; 13 is a wind speed control button; 14 is a damp heat sensor switch; 15 is a main power switch.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Referring to Fig. 1, the cement concrete test piece temperature test device of the simulation natural environment of the present utility model comprises casing, is provided with environment control system, test piece loading device and data acquisition system in casing; Described environment control system comprises daylight simulation Device 1 , blowing device 3 , humidifier 2 ; the data acquisition system includes a damp heat sensor 7 and a temperature sensor 6 .

A control module is also provided outside the box, and the control module includes a light intensity control button 11, a humidity control button 12, a wind speed control button 13, and a main power switch 15. The sunlight simulation device 1 adjusts the light intensity through the light intensity control button 11; The humidifier 2 is adjusted by the humidity control button 12 ; the wind speed of the blower 3 is adjusted by the wind speed control button 13 . The damp heat sensor 7 is also connected with a damp heat sensor switch 14 . Main power switch 15 is responsible for the power supply of whole device.

The test piece loading device includes a stage 4 whose height can be adjusted by a bracket, and a test piece fixing device 5; the test piece fixing device 5 seals around the test piece, and the temperature sensor 6 is fixed on the upper and lower surfaces of the test piece .

The data acquisition system also includes a display screen 9, which is connected to the damp heat sensor 7 and the temperature sensor 6 through the data line 8, and can display the humidity in the airtight heat preservation container measured by the damp heat sensor 7.

In the best embodiment of the present utility model, the sunlight simulation device 1 is a fluorescent lamp, which is arranged on the top of the box. The blowing device 3 is arranged on the side wall of the box; the stage 4 is prevented from being in the center of the bottom of the box; the humidifier 2 is fixed on the upper part of the side wall of the box to ensure that the humidity of the entire environment in the box is uniform; the humidity sensor 7 is fixed on the box on the side wall of the body.

When the utility model is in use, the environment is adjusted to the required conditions according to the test conditions drawn up in advance, and then different test conditions (wind speed, humidity, etc.) are changed to analyze the main influencing factors of the temperature of the test piece.

Claims (5)

1. a cement concrete specimen temperature testing device simulating natural environment, is characterized in that, comprises casing, is provided with environmental control system, specimen loading device and data acquisition system in casing; Described environmental control system comprises daylight simulation A device (1), a blowing device (3), a humidifier (2); the data acquisition system includes a damp heat sensor (7) and a temperature sensor (10). 2. The cement concrete specimen temperature testing device simulating natural environment according to claim 1, characterized in that, a control module is arranged outside the box, and the control module includes a light intensity control button (11), a humidity control button (12), wind speed control button (13), the sunlight simulation device (1) adjusts the light intensity through the light intensity control button (11); the humidifier (2) adjusts through the humidity control button (12); the blower The device (3) adjusts the wind speed through the wind speed control button (13). 3. The cement concrete specimen temperature testing device for simulating natural environment according to claim 1 or 2, characterized in that, the sunlight simulating device (1) is a fluorescent lamp and is arranged on the top of the box. 4. The cement concrete specimen temperature testing device simulating the natural environment according to claim 1, characterized in that, the specimen loading device includes a stage (4) whose height can be adjusted by a bracket, and a specimen fixing device (5); the test piece fixing device (5) seals the surroundings of the test piece (6), and at the same time, the temperature sensor (10) is fixed on the upper and lower surfaces of the test piece (6). 5. The cement concrete specimen temperature testing device for simulating natural environment according to claim 1, characterized in that, the data acquisition system also includes a display screen (9), and the display screen (9) is connected with the humidity sensor ( 7) Connect with the temperature sensor (10).

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