Title:
CORROSION ESTIMATION DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2023/223413
Kind Code:
A1
Abstract:
According to the present invention, in a first step S101, pretreatment for measuring moisture characteristics of soil is performed. The pretreatment can be performed by removing moisture in the soil to be pretreated. For example, the removal of water, which is the cause of soil amassing, may performed as a pretreatment. Next, in a second step S102, the moisture characteristics of the pretreated soil are measured. A moisture characteristic is the moisture content of soil. In addition, a moisture characteristic is the matric potential value at the prescribed soil moisture content. Next, in a third step S103, the corrosion of a metal member buried in the soil is estimated from the measured moisture characteristics.
Inventors:
OKI SHOTA (JP)
MIZUNUMA MAMORU (JP)
MINETA SHINGO (JP)
TSUDA MASAYUKI (JP)
MIZUNUMA MAMORU (JP)
MINETA SHINGO (JP)
TSUDA MASAYUKI (JP)
Application Number:
PCT/JP2022/020487
Publication Date:
November 23, 2023
Filing Date:
May 17, 2022
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G01N17/00
Domestic Patent References:
| WO2001046681A1 | 2001-06-28 | |||
| WO2021100193A1 | 2021-05-27 |
Foreign References:
| JP2019203768A | 2019-11-28 | |||
| JP2016224001A | 2016-12-28 | |||
| JP2020101406A | 2020-07-02 | |||
| JP2015080440A | 2015-04-27 | |||
| JP2020051894A | 2020-04-02 | |||
| JP2011075477A | 2011-04-14 | |||
| CN112179835A | 2021-01-05 | |||
| CN109283123A | 2019-01-29 |
Other References:
OHKI, SHOTA; MINETA, SHINGO; MIZUNUMA, MAMORU; HIGASHI, YASUHIRO; KAGAMI, OSAMU: "Effects of Soil Particle Size and Water Content on Corrosion Rate of Carbon Steel in Soil", ZAIRYO-TO-KANKYO, JP, vol. 67, no. 3, 15 March 2018 (2018-03-15), JP , pages 118 - 120, XP009529188, ISSN: 1881-9664, DOI: 10.3323/jcorr.67.118
Attorney, Agent or Firm:
YAMAKAWA, Shigeki et al. (JP)
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