A device for detecting the underwater dispersion resistance of a geopolymer grouting liquid

Abstract

The utility model discloses a device for detecting underwater anti-dispersion performance of geopolymer grouting liquid, including transparent test tank, turbidity determination module, pH value determination module, sample throwing mechanism, stirring device, data acquisition system and lighting system constitute, through integration visual inspection, turbidity determination and pH value determination three test methods in an organic whole, can acquire multiple performance indexes simultaneously, improve test efficiency and the reliability of data significantly. The device structure design is reasonable, and the operation is simple, can simulate the slurry dispersion under different water flow conditions, provides the underwater application of geopolymer material with comprehensive performance evaluation means, has very high practicality and popularization value.

Description

Technical Field

[0001] This utility model relates to the field of testing technology for geopolymer grouting materials, specifically to a device for testing the underwater anti-dispersion performance of geopolymer grouting fluid. Background Technology

[0002] Geopolymers, as a new type of environmentally friendly building material, are increasingly widely used in underwater engineering. According to the two standards, "Test Procedure for Underwater Non-Dispersible Concrete" (DLT5117-2000) and "Technical Requirements for Flocculants in Underwater Non-Dispersible Concrete" (GB / T37990-2019), the testing methods for the anti-dispersion performance of concrete are weighing method, suspended solids content determination, and pH measurement. A review of numerous literatures reveals that different experts and scholars have chosen different methods. Table 1 summarizes the advantages and disadvantages of each method based on various literatures. Currently, there is a lack of a device capable of integrating multiple testing methods simultaneously, resulting in low testing efficiency and poor data comparability.

[0003] Analysis of Anti-dispersion Performance Characterization Methods and Their Advantages and Disadvantages: 1. Weighing method (loss amount): Advantages: It has specific standards to support it and can be quantitatively characterized; Disadvantages: If the sample size is too large, the mixture will absorb a lot of water, which will cause a large error in the test results, and may even result in negative values. Therefore, the weighing method has obvious defects and is not particularly accurate for evaluating the anti-dispersion property of concrete.

[0004] 2. Suspended turbidity determination: Advantages: There are specific standards to support it, and it can be quantitatively characterized; Disadvantages: The operation is cumbersome, a large amount of filter paper needs to be purchased, and there will be a large error in the weighing process.

[0005] 3. pH measurement: Advantages: Supported by specific standards, and can be quantitatively characterized; Disadvantages: The measurement process is affected by the sensitivity of the pH meter.

[0006] 4. Visual inspection method: Advantages: Supported by a large amount of literature, obvious results, and more intuitive; Disadvantages: Lack of standard support, difficult to quantify and characterize, and needs to be combined with other methods.

[0007] 5. Turbidity measurement: Advantages: Supported by a large number of research papers, and can be quantitatively characterized; Disadvantages: No relevant standards have been found to support it.

[0008] Therefore, this utility model provides a device that integrates visual inspection, turbidity measurement, pH value measurement and other methods for detecting the underwater anti-dispersion performance of geopolymer grouting fluid. Utility Model Content

[0009] To address the problems existing in the prior art, this utility model provides a device for testing the underwater anti-dispersion performance of geopolymer grouting fluid, aiming to solve the aforementioned technical problems.

[0010] To achieve the above objectives, this utility model is implemented through the following technical solution: a device for detecting the underwater anti-dispersion performance of geopolymer grouting fluid, comprising a transparent test tank, a turbidity measuring module, a pH measuring module, a sample delivery mechanism, a stirring device, a data acquisition system, and a lighting system; The transparent test tank is made of high-strength transparent material and is used to hold test water and geopolymer slurry samples; The turbidity measurement module includes a turbidity sensor installed on the side wall of the transparent test tank, which can monitor and record the turbidity changes of the water body in real time. The pH measurement module includes a pH electrode, which can monitor and record changes in the pH value of the water in real time. The sample delivery mechanism includes a height-adjustable sample delivery tube for controlling the delivery position and speed of the geopolymer slurry sample; The stirring device is an adjustable speed stirrer used to simulate different water flow environments; The data acquisition system integrates turbidity and pH value data acquisition functions, and can store and output test data; The data display screen receives data from the data acquisition system and displays the detection data; The lighting system is located at the bottom and sides of the test tank, providing uniform illumination for easy visual observation.

[0011] Preferably, the transparent test tank is made of polycarbonate with a thickness of 10-12 mm.

[0012] Preferably, the turbidity sensor includes a receiving end and a transmitting end, symmetrically distributed on opposite sides of the transparent test tank, with a spacing of not less than 150 mm.

[0013] Preferably, the pH electrodes are symmetrically arranged on opposite sides of the transparent test tank, with a spacing of not less than 150 mm.

[0014] Preferably, the stirring device is a magnetic stirrer with an adjustable speed range of 0-1000 rpm.

[0015] Preferably, the height adjustment range of the sample delivery mechanism is 0-300mm.

[0016] Preferably, the sample delivery mechanism is a funnel that can be opened and closed, the funnel extends into the transparent test tank through a branch pipe, and the height of the funnel is adjusted by an adjusting bracket.

[0017] In summary, this invention provides a device for testing the underwater anti-dispersion performance of geopolymer grouting fluids. Compared with existing technologies, this invention has the advantages of integrating three testing methods—visual inspection, turbidity measurement, and pH measurement—into one unit, allowing for the simultaneous acquisition of multiple performance indicators, significantly improving testing efficiency and data reliability. The device has a reasonable structural design, is easy to operate, and can simulate grout dispersion under different water flow conditions, providing a comprehensive performance evaluation method for the underwater application of geopolymer materials. It has high practicality and widespread application value. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; In the diagram: 1. Transparent test tank; 2. Turbidity measurement module; 3. pH measurement module; 4. Sample delivery mechanism; 5. Stirring device; 6. Data acquisition system; 7. Lighting system; 8. Adjustment bracket. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] like Figure 1 As shown: This utility model is a test device for the underwater anti-dispersion performance of geopolymer slurry, comprising a transparent test tank 1, a turbidity measuring module 2, a pH measuring module 3, a sample delivery mechanism 4, a stirring device 5, a data acquisition system 6, and a lighting system 7; The transparent test tank 1 is made of high-strength transparent material and has dimensions of 600mm×400mm×500mm; The sensors of the turbidity measurement module 2 are symmetrically installed on both sides of the test tank along its length, 100 mm from the bottom. The electrodes of the pH measurement module 3 are symmetrically installed at the same height on both sides of the transparent test tank 1 in the width direction; The sample delivery mechanism 4 adopts an adjustable bracket 8 with a height adjustment range of 0-300mm. The delivery tube diameter is 50mm. The stirring device 5 is driven by a variable frequency motor with an adjustable speed range of 0-1000 rpm; The data acquisition system 6 is integrated on the control panel and can display and store turbidity and pH data in real time. The lighting system 7 uses an LED array to provide uniform background lighting.

[0021] In use, first pour clean water into the transparent test tank 1 to the predetermined height, set the stirring speed of the stirring device 5 according to the test requirements, load the geopolymer slurry sample into the sample delivery mechanism 4, start the data acquisition system 6 and release the sample, and simultaneously conduct visual observation, turbidity measurement and pH value measurement, and finally record and analyze the test data.

[0022] In at least one embodiment, the transparent test tank 1 is made of polycarbonate and has a thickness of 12 mm.

[0023] In at least one embodiment, the turbidity sensor and pH electrode are symmetrically arranged on both sides of the test tank, with a spacing of 150 mm.

[0024] In at least one embodiment, the impeller of the stirring device 5 is a three-bladed propeller with a diameter of 80 mm.

[0025] In at least one embodiment, the sample delivery mechanism 4 is equipped with a flow rate control valve with two settings: 10 mL / s and 20 mL / s.

[0026] The embodiments described in this utility model are for illustrative purposes only and do not constitute a limitation on the scope of the claims. Other substantially equivalent substitutions that can be conceived by those skilled in the art are all within the protection scope of this utility model.

Claims

1. A device for testing the underwater anti-dispersion properties of geopolymer grouting fluid, characterized in that, It consists of a transparent test tank (1), a turbidity measurement module (2), a pH value measurement module (3), a sample delivery mechanism (4), a stirring device (5), a data acquisition system (6), a data display screen, and a lighting system (7); The transparent test tank (1) is made of high-strength transparent material and is used to hold test water and geological polymer slurry samples; The turbidity measurement module (2) includes a turbidity sensor installed on the side wall of the transparent test tank (1), which can monitor and record the turbidity changes of the water body in real time; The pH measurement module (3) includes a pH electrode, which can monitor and record the pH changes of the water body in real time; The sample delivery mechanism (4) includes a height-adjustable sample delivery tube for controlling the delivery position and speed of the geopolymer slurry sample; The stirring device (5) is an adjustable speed stirrer used to simulate different water flow environments; The data acquisition system (6) integrates turbidity and pH value data acquisition functions, and can store and output test data; The data display screen receives data from the data acquisition system (6) and displays the detection data; The lighting system (7) is set at the bottom and sides of the test tank to provide uniform lighting for easy visual observation.

2. The device for detecting the underwater anti-dispersion properties of geopolymer grouting fluid according to claim 1, characterized in that, The transparent test tank (1) is made of polycarbonate with a thickness of 10-12 mm.

3. The device for detecting the underwater anti-dispersion properties of geopolymer grouting fluid according to claim 1, characterized in that, The turbidity sensor includes a receiving end and a transmitting end, which are symmetrically distributed on opposite sides of the transparent test tank (1), with a spacing of not less than 150 mm.

4. The device for detecting the underwater anti-dispersion properties of geopolymer grouting fluid according to claim 1, characterized in that, The pH electrodes are symmetrically arranged on opposite sides of the transparent test tank (1), with a spacing of not less than 150 mm.

5. The apparatus for detecting the underwater anti-dispersion properties of geopolymer grouting fluid according to claim 1, characterized in that, The stirring device (5) is a magnetic stirrer with an adjustable speed range of 0-1000 rpm.

6. The apparatus for detecting the underwater anti-dispersion properties of geopolymer grouting fluid according to claim 1, characterized in that, The height adjustment range of the sample delivery mechanism (4) is 0-300mm.

7. The apparatus for detecting the underwater anti-dispersion properties of geopolymer grouting fluid according to claim 1, characterized in that, The sample delivery mechanism (4) uses a funnel that can be opened and closed. The funnel extends into the transparent test tank (1) through a branch pipe. The height of the funnel is adjusted by an adjusting bracket (8).

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