Piezoelectric ultrasonic device for online monitoring of cement concrete hydration process

A cement concrete, piezoelectric ultrasonic technology, applied in the direction of measuring devices, using sound waves/ultrasonic waves/infrasonic waves to analyze solids, using sound waves/ultrasonic waves/infrasonic waves for material analysis, etc., can solve the damage of cement concrete structures and cannot reflect cement concrete structures Information and hydration degree and other issues, to achieve the effect of changeable structure, strong practicability, and convenient use
CN112305074AActive Publication Date: 2021-02-02UNIV OF JINAN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
UNIV OF JINAN
Publication Date
2021-02-02

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Abstract

Disclosed is a piezoelectric ultrasonic device for online monitoring of a cement concrete hydration process. The piezoelectric ultrasonic device comprises a container used for containing cement concrete, wherein an opening is formed in the upper portion of the container, and a limiting groove is formed in the bottom wall of the container; and a supporting rod, wherein the upper portion of the supporting rod is provided with a support, the bottom of the supporting rod is located in the limiting groove, the supporting rod is erected in the container through the limiting groove and the support, aspherical piezoelectric ultrasonic sensor is fixed to the supporting rod, and the spherical piezoelectric ultrasonic sensor is located in the center of the container. By utilizing the excellent characteristics of ultrasonic waves and designing sensors for transmitting and receiving ultrasonic signals, the device can be suitable for concrete structures of various different conditions, is wide in application range, and can realize good online monitoring on hydration of different types of concrete.
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Description

technical field

[0001] The invention relates to a piezoelectric ultrasonic device for online monitoring of cement concrete hydration process, belonging to the technical field of cement concrete quality monitoring. Background technique

[0002] Cement concrete is a system composed of a variety of minerals. Its hydration and hardening are a very complex multiphase chemical reaction process. It has different hydration characteristics in different hydration stages, and its hydration characteristics determine the cement concrete. Many important physical properties of the structure. The current research has shown that the development of various properties of cement concrete is based on the process of cement hydration. The mechanism of cement hydration directly affects its hydration heat release and heat release rate, and affects the physical properties of concrete. develop. In order to ensure the excellent engineering performance of concrete, it is necessary to monitor the cemen...

Claims

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