Determination device, determination method, program, and method for manufacturing concrete products

The determination device addresses the inconsistency in concrete compaction by using surface image analysis and vibrator measurements to determine optimal compaction timing, enhancing concrete quality and consistency.

JP7760212B2Active Publication Date: 2025-10-27KUMAGAI GUMI CO LTD
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Patent Information

Application Number
JP2021116662
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-07-14
Publication Date
2025-10-27
Estimated Expiration
2041-07-14

AI Technical Summary

Technical Problem

Existing methods for determining the compaction state of concrete are inadequate as they fail to account for variations in concrete mix conditions, temperature, working environment, and vibrator performance, leading to inconsistent compaction results.

Method used

A determination device that captures concrete surface images and measures vibrator vibrations, using multiple indices such as average brightness and edge pixel count, along with vibration frequency, to determine the compaction state in real time.

Benefits of technology

Enables accurate determination of compaction completion time regardless of concrete type, temperature, and environmental conditions, ensuring consistent concrete quality.

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Patent Text Reader

Abstract

To appropriately determine a completion timing of compaction regardless of a concrete blending condition, a concrete temperature, a working environment and vibrator performance.SOLUTION: A determination device (10) determines a compaction state of concrete when concrete (C) after placed is compacted by a vibrator (5). The determination device includes: an imaging part (11) for imaging a surface image of the concrete; a measurement part (12) for measuring vibration of the vibrator; and a control part (13) connected to the imaging part and the measurement part. The control part determines a compaction state on the basis of the surface image and a vibration measurement value.SELECTED DRAWING: Figure 1
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Citation Information

Patent Citations

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    JP2002054302A

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  • Method and device for determining compaction degree of concrete

    JP2017025609A