Standard Test Method for Measurement of Soil Resistivity Using the Two-Electrode Soil Box Method

Importancia y uso:

5.1 The resistivity of the surrounding soil environment is a factor in the corrosion of underground structures. High resistivity soils are generally not as corrosive as low resistivity soils. The resistivity of the soil is one of many factors that influence the service life of a buried structure. Soil resistivity may affect the material selection and the location of a structure.5

5.2 Soil resistivity is of particular importance and interest in the corrosion process because it is basic in the analysis of corrosion problems and the design of corrective measures.

5.3 The test method is focused to provide an accurate, expeditious measurement of soil resistivity to assist in the determination of a soil’s corrosive nature. Test Method G57 emphasizes an in situ measurement commonly utilized in the design of a buried structures’ corrosion control (cathodic protection systems’ ground bed design, and so forth), but also includes information and procedures on a four-pin soil box method. The two-electrode soil box method is an accurate and more expeditious method than the four-pin soil box and often complements the four-pin, in situ soil resistivity method.

5.4 The saturated soil resistivity determined by this test method does not necessarily indicate the minimum soil resistivity.

Subcomité:

G01.10

Referida por:

G0057-20, G0200-20, G0162-23, D7765-18A, G0218-19

Volúmen:

03.02

Número ICS:

13.080.99 (Other standards related to soil quality)

Palabras clave:

soil box; soil box factor; soil resistivity; two-electrode soil box;