CN202814823U - Simple device for measuring ice melting rate of bituminous pavement additive - Google Patents

Abstract

The utility model relates to a simple test device for the ice-melting rate of an asphalt pavement admixture. The device includes a transparent constant temperature box, and several groups of measuring units are arranged in the transparent constant temperature box. Each group of measuring units includes an electronic scale arranged at the bottom. A lower container is placed on the electronic scale, and an upper container is hung directly above the lower container through a suspension arm fixed on the upper end of the transparent incubator. The lower mouth of the upper container is aligned with the opening of the lower container, and the lower container The bottom of the container is provided with a concentration meter; the signal lines of the concentration meter in each group of lower containers are led out and connected to the concentration display; a temperature and humidity meter are also arranged in the transparent thermostat. The device of the utility model can conveniently evaluate the snow-melting performance of the self-melting asphalt pavement admixture through a reasonable structural design, and the device has simple structure, convenient operation and accurate measurement.

Description

Simple test device for ice melting rate of asphalt pavement admixture

technical field

The utility model relates to the field of snow-melting performance test of road engineering self-melting asphalt road surface admixture. In particular, it relates to proposing a simple test device for ice-melting rate of asphalt pavement admixture. the

Background technique

When the self-snow-melting asphalt pavement admixture is prepared in the laboratory, the snow-melting performance of the self-snow-melting asphalt pavement admixture is an extremely important indicator. How to quickly and efficiently test the snow-melting performance of the admixture is a key link in the experiment. According to the snow melting mechanism, a certain amount of IGD admixture is sprinkled on the ice surface. Due to the different chemical potentials of the solid and liquid phases, they cannot coexist. The liquid phase transfers until the chemical potentials of the two are equal to achieve the purpose of melting ice and snow. the

At present, there are two common methods for measuring the melting rate of ice and snow: one is to measure the amount of snowmelt within a fixed time, and the other is to measure the time required for a certain mass of deicing agent to completely melt a certain mass of ice. In consideration of simplicity and operability, the utility model adopts the former, that is, take 10 equal-sized containers 3, put an equivalent amount of 250g of water inside, and sprinkle an equal amount of IGD admixture on the ice and snow after freezing. The quality of the solution melted into the container 3 is measured every hour, and according to the solution quality at each moment, a cumulative ice-melting amount-time curve is made, and then the derivation of the curve is the ice-melting rate curve. the

Utility model content

The purpose of this utility model is to overcome the above-mentioned shortcomings of the prior art, and provide a simple test device for the ice-melting rate of asphalt pavement admixture. The device can conveniently test the snow-melting performance of self-melting asphalt pavement admixture through a reasonable structural design. Evaluation, and the equipment is simple in structure, easy to operate and accurate in measurement. the

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

This simple test device for the ice-melting rate of the asphalt pavement admixture comprises a transparent incubator, in which a measuring unit is arranged, the measuring unit includes an electronic scale arranged at the bottom, and a lower container is placed on the electronic scale, An upper container is hung directly above the lower container by a suspension arm fixed on the upper end of the transparent incubator, the lower mouth of the upper container is aligned with the opening of the lower container, and a concentration meter is arranged at the bottom of the lower container; The concentration meter signal wires in the lower container are drawn out and connected to the concentration display; a temperature and a hygrometer are also installed in the transparent incubator; the upper container and the lower container are discarded beverage bottles. the

An anti-volatile partition is arranged on the opening of the lower container. the

The above-mentioned upper container is an inverted bottomless bottle, and its lower end bottle mouth is aligned with the opening of the lower container. the

The above-mentioned concentration display is set on the top cover of the transparent incubator, and a horizontal frame is arranged in the middle of the transparent incubator, and the signal lines of the densitometers in each group of lower containers are led out to the concentration display along the horizontal frame. the

The container wall of the above-mentioned lower container is provided with a small hole for leading out the signal line of the concentration meter. the

The bottom of the transparent incubator is provided with a refrigeration system. the

The upper container and the lower container are made from discarded beverage bottles. the

There are multiple sets of measuring units arranged in the transparent thermostat. the

Further improvement and characteristics of the utility model technology are:

1) The utility model can efficiently and quickly detect the snow-melting performance of the self-melting asphalt pavement admixture, and provide reliable test data. the

2) The upper container and the lower container of the utility model are made of discarded beverage bottles, which is environmentally friendly and economical, and reduces manufacturing costs. the

3) The constant temperature box of the utility model is a transparent box, which can directly observe the reaction of the internal test from the outside, which is convenient, can reduce the influence of opening the box on the internal environment temperature, and improve the test accuracy. the

4) The utility model is equipped with a concentration testing system, which can conveniently and quickly read the concentration of the melting liquid at any time. the

Description of drawings

Fig. 1 is the structural representation of the utility model. the

Among them: 1 is admixture; 2 is ice cube; 3 is the lower container; 4 is the upper container; 5 is the anti-volatile partition; 6 is the suspension arm; 7 is the melting liquid; 8 is the refrigeration system; 9 is the transparent thermostat; 10 is an electronic scale; 11 is a temperature and humidity meter; 12 is a signal line; 13 is a horizontal frame; 14 is a concentration display; 15 is a small hole; 16 is a concentration meter. the

Detailed ways

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

Referring to Fig. 1, the simple test device for the melting rate of asphalt pavement admixture of the present invention comprises a transparent thermostat 9, in which a measurement unit is arranged, and the measurement unit includes an electronic scale 10 arranged at the bottom, A lower container 3 is placed on the electronic scale 10, and an upper container 4 is hung directly above the lower container 3 by a suspension arm 6 fixed on the upper end of the transparent incubator 9, and the lower mouth of the upper container 4 is aligned with the opening of the lower container 3 The bottom of the lower container 3 is provided with a concentration meter 16; the signal lines of the concentration meter 16 in each group of lower containers 3 are drawn out and connected to the concentration display 14; the transparent thermostat 9 is also provided with a temperature and humidity meter 11. The opening of the lower container 3 is provided with an anti-volatile partition 5. The upper container 4 is an upside-down bottomless bottle, and its lower end bottleneck is aligned with the opening of the lower container 3 . Concentration display 14 is arranged on the upper cover of transparent thermostat 9, and the middle part of described transparent thermostat 9 is provided with horizontal frame 13, and the concentration meter 16 signal lines in each group of lower containers 3 are drawn out along horizontal frame 13 to Concentration display 14. A small hole 15 for leading out the signal line 12 of the concentration meter 16 is provided on the container wall of the lower container 3 . The bottom of the transparent incubator 9 is provided with a refrigeration system 8 . The upper container 4 and the lower container 3 of the present utility model can be made from discarded beverage bottles. There are multiple groups of measuring units arranged in the transparent thermostat 9 . the

Described in Fig. 1 is wherein a kind of preferred embodiment of the present utility model, is arranged with ten groups of measuring units in its transparent thermostatic box 9, is divided into two rows of arrangement. Taking this embodiment as a basis below, the self-melting snow asphalt pavement admixture snow melting performance evaluation method of this device comprises the following steps:

1) Turn on the refrigeration system 8 to cool down, so that the transparent incubator 9 reaches the test temperature, and use the lower container 3 of each group of measuring units to measure 250g of distilled water and put them into the transparent incubator 9 to freeze;

2) After the distilled water is completely frozen, put the irregular side of the ice cubes in the lower container 3 of each group downward into the upper container 4 of each group of measuring units, and fix the upper container 4 on the suspension arm 6;

3) Weigh 10g of admixture 1 (IGD admixture) and spread it evenly on the ice cube 2 in the upper container 4 of each group of measuring units, and weigh the initial mass m ₁ , m ₂ , m 3 of each group of dry lower container ₃ , m ₄ , m ₅ , m ₆ , m ₇ , m ₈ , m ₉ , m ₁₀ , take the average value of the two values in sequence M ₁ , M ₂ , M ₃ , M ₄ , M ₅ ;

4) Close the door of the transparent incubator 9 and place it at a constant temperature for 1 hour. At this time, the melting solution 7 will accumulate in the lower container 3, record the temperature and humidity in the transparent incubator 9, and read the values m ₁₁ on 10 electronic scales 10 , m ₁₂ , m ₁₃ , m ₁₄ , m ₁₅ , m ₁₆ , m ₁₇ , m ₁₈ , m ₁₉ , m ₂₀ , take the average of the two values in sequence M ₆ , M ₇ , M ₈ , M ₉ , M ₁₀ ; read the data once every 1h interval, and record and average the quality;

5) According to the mass mean value at each moment, the cumulative ice melting volume-time curve is drawn, and then the derivative of the curve is the ice melting rate curve. the

Claims (8)

1. A simple test device for the ice-melting rate of an asphalt pavement admixture, characterized in that it comprises a transparent thermostat (9), and a measuring unit is arranged in the transparent thermostat (9), and the measuring unit includes a An electronic scale (10), a lower container (3) is placed on the electronic scale (10), and a suspension arm (6) fixed on the upper end of the transparent incubator (9) is hung directly above the lower container (3). The upper container (4), the lower mouth of the upper container (4) is aligned with the opening of the lower container (3), and the bottom of the lower container (3) is provided with a concentration meter (16); each group of lower containers (3) The concentration meter (16) signal line in ) is led out and connected to the concentration display (14) in a unified way; the upper container (4) and the lower container (3) are discarded beverage bottles. 2. The simple test device for ice-melting rate of asphalt pavement admixture according to claim 1, characterized in that a temperature and humidity meter (11) is also arranged in the transparent thermostat (9). 3. The simple test device for ice-melting rate of asphalt pavement admixture according to claim 1, characterized in that, the opening of the lower container (3) is provided with an anti-volatile partition (5). 4. The simple test device for ice-melting rate of asphalt pavement admixture according to claim 1, characterized in that the upper container (4) is an inverted bottomless bottle, and the lower end of the bottle is connected to the opening of the lower container (3) alignment. 5. The simple test device for ice-melting rate of asphalt pavement admixture according to claim 1, characterized in that the concentration indicator (14) is set on the top cover of the transparent thermostat (9), and in the transparent thermostat The middle part of (9) is provided with a horizontal frame (13), and the signal line of the concentration meter (16) in each group of lower containers (3) is led out to the concentration display (14) along the horizontal frame (13). 6. The simple test device for ice-melting rate of asphalt pavement admixture according to claim 4, characterized in that, the container wall of the lower container (3) is provided with a small hole ( 15). 7. The simple test device for ice-melting rate of asphalt pavement admixture according to claim 1, characterized in that, the bottom of the transparent thermostat (9) is provided with a refrigeration system (8). 8. The simple test device for ice-melting rate of asphalt pavement admixture according to claim 1, characterized in that there are multiple sets of measuring units arranged in the transparent thermostat (9). the