Integrated grouting slurry fluidity automatic detector

Abstract

The invention discloses an integrated grouting slurry fluidity automatic detector, which comprises an automatic stirring system, a control system and a fluidity detection system, wherein the automaticstirring system comprises blades, a rotating shaft, a stirring cup and a controllable variable-speed motor, the rotating shaft and the blades are arranged in the stirring cup, the upper end of the rotating shaft is connected with the blades, and the lower end of the rotating shaft is connected with the motor; the control system comprises a motor rotating speed control device, a test time controldevice and a switch control device; and the fluidity detection system comprises a quality detection device, a rotating speed detection device and a fluidity detection device. The integrated grouting slurry fluidity automatic detector overcomes the defects that an existing grouting slurry fluidity detection device is low in automation degree and complex in test operation, automatic fluidity detection can be achieved by means of the device, and the obtained result is more precise and practical.

Description

technical field [0001] The invention belongs to the technical field of fluidity measurement, and in particular relates to an integrated automatic detector for the fluidity of grouting material. Background technique [0002] The grouting material is a product specially used for post-tensioning prestressed pipe (hole) grouting construction, which is optimized and formulated from a variety of high-quality cement-based materials and high-performance admixtures. It is widely used in post-tensioned bridge channel grouting in various railways and highways, large prestressed structure channel grouting, anti-leakage grouting at joints of various concrete structures, curtain grouting, anchor grouting, gap filling or repairing, etc. . It is required to have excellent fluidity, stable slurry, good filling degree, adjustable setting time, no shrinkage, slight expansion, high strength, and no harmful substances to steel bars. [0003] However, when the common stirring machines on the ma...

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Problems solved by technology

[0003] However, when the common stirring machines on the market are used in the detection test of the fluidity of the grout, I found many deficiencies, which make them unable to meet the test needs of the fluidity measurement of the grout

Take the cantilever stirring machine as an example, because in the experiment of testing the fluidity of the grout, a high speed is required, and a large resistance will be generated when stirring, so a large bending moment will be generated, resulting in the deformation of the cantilever and the rotation speed. Fluctuation, so it cannot meet the requirements for speed stability during the test

However, after the mechanical stirring that meets the requirement of stable speed is completed, a good stirring effect cannot be obtained, and the physical and chemical properties of the obtained liquid are unevenly distributed.

[0004] In addition, there is currently no device for automatic detection of the fluidity of the grout. Usually, after the stirring work is completed, the flow cone is still used to measure manually.

However, with the development of engineering technology, the requirements for the parameters of the fluidity of the grout are becoming more and more stringent. This rough measurement method obviously does not meet the current requirements for test efficiency and test accuracy because it is mixed with too many human factors. Therefore, the demand for automatic detection of the fluidity of the grout is becoming stronger and stronger

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