Title:
CONCRETE COMPRESSION STRENGTH MEASURING METHOD, CONCRETE COMPRESSION STRENGTH MEASURING SYSTEM, MEASURING DEVICE, ANALYZER, AND PROGRAM
Document Type and Number:
Japanese Patent JP2023025442
Kind Code:
A
Abstract:
To provide a concrete compression strength measuring method and the like that can simply and accurately measure the compression strength of hardened concrete.SOLUTION: A concrete compression strength measuring system 1 comprises: a measuring device 3 that is attached to an electric screwdriver 2; and an analyzer 5 that acquires and analyzes measurement data obtained through measurement performed by the measuring device 3. The measuring device 3 measures rotational strain generated when an external thread 4 is screwed into a concrete member 10 by using the electric screwdriver 2, and outputs the rotational strain to the analyzer 5 as the measurement data. The analyzer 5 acquires the measurement data, determines torque reaction based on the measurement data while over torque is generated, and estimates the compression strength of the concrete member 10 based on a relation between the torque reaction and the compression strength of concrete.SELECTED DRAWING: Figure 1
Inventors:
TADA KENJI
Application Number:
JP2021130693A
Publication Date:
February 22, 2023
Filing Date:
August 10, 2021
Export Citation:
Assignee:
JUST
International Classes:
G01N3/00; G01N19/00; G01N33/38
Attorney, Agent or Firm:
Seiichi Inoue
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