A real-time monitoring device and method for concrete plastic viscosity

Abstract

The invention relates to a real-time monitoring device and method for concrete plastic viscosity. The original bottom layer data of concrete plastic viscosity calculation in the present invention is completely derived from the stress sensor provided on the intelligent mixing blade, and the concrete plastic viscosity is calculated by a stress data wireless transmitter. The original bottom layer data is transmitted to the concrete plastic viscosity calculation terminal, and the real-time plastic viscosity result of the freshly mixed concrete in the mixing tank is calculated in real time through the conversion algorithm based on stress-power-plastic viscosity.

Description

technical field [0001] The invention belongs to the technical field of civil engineering building materials, and relates to a real-time monitoring device and method for concrete plastic viscosity used in the concrete preparation process. Background technique [0002] The workability of fresh concrete is of great significance to the overall construction of engineering projects. The workability of fresh concrete refers to the performance of fresh concrete that is easy to construct and operate and can obtain homogeneous and compact concrete performance. It is a comprehensive evaluation of the performance of fresh concrete, usually including: fluidity, plasticity, consistency, stability, Plastering performance, pumpability, ease of pouring, slump loss, etc. [0003] The workability of fresh concrete covers its own performance in many aspects, and there are many evaluation methods for workability, and a single method cannot cover all the elements of concrete workability. [000...

AI Technical Summary

Problems solved by technology

[0003] The workability of fresh concrete covers its own performance in many aspects, and there are many evaluation methods for workability, and a single method cannot cover all the elements of concrete workability

[0004] At present, the most common method for evaluating the workability of concrete in engineering is the slump test. The indicators extracted by the slump test are quantitative indicators, which belong to the post-process detection. The data of the slump test results are highly fuzzy and cannot accurately cover All elements of concrete workability

[0005] In the process of concrete preparation, there is no workability detection method generally adopted at present. Based on the working practice of concrete mixing plants, at present, engineers and technicians use the fluctuation and smooth conversion process of the motor current data of concrete mixing tanks as a reference to check the working performance in the production process. Evaluate the uniformity of concrete mixing. This empirical method is based on data and relies on the experience of operators to carry out evaluation behaviors. It takes qualitative and quantitative considerations into account, and qualitative evaluation is the main idea.

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