Method for evaluating corrosivity of polluted soil

A polluted soil and corrosive technology, applied in the direction of electrochemical variables of materials, etc., can solve the problems of polluted soil corrosion evaluation with many test contents, unstable influencing factors, inconvenient operation, etc., to achieve convenient operation, simple test device, and measurement accuracy. high effect
CN104090001AActive Publication Date: 2014-10-08TAIYUAN UNIV OF TECH
4 Cites 9 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TAIYUAN UNIV OF TECH
Publication Date
2014-10-08

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a method for evaluating the corrosivity of polluted soil. The method comprises the steps of preparing a polluted soil sample, manufacturing a test cutting ring, testing an electrochemical impedance spectrum, evaluating an electrochemical impedance test, fitting a polluted soil equivalent circuit diagram, evaluating a fitting result and evaluating the corrosivity of the polluted soil. An intersection of the Nyquist curve and an impedance real part of the polluted soil sample and the radius of a capacitive reactance arc of the curve are compared under the same test condition; the smaller the intersection is, the smaller the radius of the capacitive resistance arc is, the higher the corrositivity of the polluted soil is; the larger the intersection is, the greater the radius of the capacitive resistance arc is, the lower the corrositivity of the polluted soil is. According to the method for evaluating the corrosivity of the polluted soil, a required test device is simple, the measurement precision is high, and the operation is convenient.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of corrosion tests of polluted soil, in particular to a method for evaluating the corrosivity of polluted soil. Background technique

[0002] The evaluation and treatment of contaminated soil involves multidisciplinary fields such as geotechnical engineering, environmental engineering, soil science, chemistry and chemical engineering, and testing technology, and is a hot issue that has not been fully resolved in the world. Electrochemical impedance spectroscopy has been widely used in multiple disciplines and has gradually become a powerful method for the study of the durability of building materials, which provides a new idea for the application of electrochemical impedance spectroscopy theory in the field of geotechnical engineering; based on the electrochemical impedance spectroscopy theory, Various testing methods such as physics, chemistry, and electrochemistry are used to test the relationship between the minera...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More