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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

Active Publication Date: 2021-02-02
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The scanning electron microscope and X-ray diffraction method will damage the cement concrete structure and cannot reflect the internal structure information and hydration degree of cement concrete.

Method used

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  • Piezoelectric ultrasonic device for online monitoring of cement concrete hydration process
  • Piezoelectric ultrasonic device for online monitoring of cement concrete hydration process
  • Piezoelectric ultrasonic device for online monitoring of cement concrete hydration process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A piezoelectric ultrasonic device for omnidirectional online monitoring of cement concrete hydration process, the device includes a container 1 for containing cement concrete, a support rod 3 and a spherical piezoelectric ultrasonic sensor 5 . Wherein, there is an opening above the container for containing cement concrete, and a limiting groove 2 is provided on the bottom wall of the container, and the limiting groove is located at the center of the bottom wall of the container. The function of the support rod is to fix the spherical piezoelectric ultrasonic sensor at the center of the container. The support rod exists independently and can be put into the container when in use. The upper part of the support rod is provided with a bracket, and the bottom of the support rod is located in the limit groove Inside, the support rod is erected in the container through the limit slot and the bracket, the spherical piezoelectric ultrasonic sensor is fixed on the support rod, the...

Embodiment 2

[0048] A piezoelectric ultrasonic device for on-line monitoring of cement concrete hydration process, the device includes a container 1 for containing cement concrete, a support rod 3 and a spherical piezoelectric ultrasonic sensor 5. Wherein, there is an opening above the container for containing cement concrete, and a limiting groove 2 is provided on the bottom wall of the container, and the limiting groove is located at the center of the bottom wall of the container. The function of the support rod is to fix the spherical piezoelectric ultrasonic sensor at the center of the container. The support rod exists independently and can be put into the container when in use. The upper part of the support rod is provided with a bracket, and the bottom of the support rod is located in the limit groove Inside, the support rod is erected in the container through the limit slot and the bracket, the spherical piezoelectric ultrasonic sensor is fixed on the support rod, the support rod run...

Embodiment 3

[0054] Such as image 3As shown, a piezoelectric ultrasonic device for omnidirectional online monitoring of cement concrete hydration process, the device includes a container 1 for containing cement concrete, a support rod 3 and a spherical piezoelectric ultrasonic sensor 5 . Wherein, there is an opening above the container for containing cement concrete, and a limiting groove is provided on the bottom wall of the container, and the limiting groove is located at the center of the bottom wall of the container. The function of the support rod is to fix the spherical piezoelectric ultrasonic sensor at the center of the container. The support rod exists independently and can be put into the container when in use. The upper part of the support rod is provided with a bracket, and the bottom of the support rod is located in the limit groove Inside, the support rod is erected in the container through the limit slot and the bracket, the spherical piezoelectric ultrasonic sensor is fixe...

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PUM

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01N29/22G01N29/24G01N29/07G01N29/12
CPCG01N29/04G01N29/223G01N29/2437G01N29/245G01N29/2475G01N29/07G01N29/12G01N2291/103G01N2291/0232G01N2291/011G01N2291/014
Inventor 徐东宇李浩然张秀芝徐笃军李珍胡燕程新
Owner UNIV OF JINAN
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