skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Grounding electrode and method of reducing the electrical resistance of soils

Abstract

A first solution of an electrolyte is injected underground into a volume of soil having negative surface charges on its particles. A cationic surfactant suspended in this solution neutralizes these surface charges of the soil particles within the volume. Following the first solution, a cationic asphalt emulsion suspended in a second solution is injected into the volume. The asphalt emulsion diffuses through the volume and electrostatically bonds with additional soil surrounding the volume such that an electrically conductive water repellant shell enclosing the volume is formed. This shell prevents the leaching of electrolyte from the volume into the additional soil. The second solution also contains a dissolved deliquescent salt which draws water into the volume prior to the formation of the shell. When electrically connected to an electrical installation such as a power line tower, the volume constitutes a grounding electrode for the tower.

Inventors:
 [1]
  1. Richland, WA
Publication Date:
Research Org.:
Battelle Memorial Institute, Columbus, OH (United States)
OSTI Identifier:
863528
Patent Number(s):
US 4192963
Assignee:
Battelle Memorial Institute (Richland, WA)
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
grounding; electrode; method; reducing; electrical; resistance; soils; solution; electrolyte; injected; underground; volume; soil; negative; surface; charges; particles; cationic; surfactant; suspended; neutralizes; following; asphalt; emulsion; diffuses; electrostatically; bonds; additional; surrounding; electrically; conductive; water; repellant; shell; enclosing; formed; prevents; leaching; contains; dissolved; deliquescent; salt; draws; prior; formation; connected; installation; power; line; tower; constitutes; surface charge; power line; electrically conductive; electrical resistance; electrically connected; shell enclosing; surface charges; soil particles; cationic surfactant; /174/106/252/405/

Citation Formats

Koehmstedt, Paul L. Grounding electrode and method of reducing the electrical resistance of soils. United States: N. p., 1980. Web.
Koehmstedt, Paul L. Grounding electrode and method of reducing the electrical resistance of soils. United States.
Koehmstedt, Paul L. Tue . "Grounding electrode and method of reducing the electrical resistance of soils". United States. https://www.osti.gov/servlets/purl/863528.
@article{osti_863528,
title = {Grounding electrode and method of reducing the electrical resistance of soils},
author = {Koehmstedt, Paul L},
abstractNote = {A first solution of an electrolyte is injected underground into a volume of soil having negative surface charges on its particles. A cationic surfactant suspended in this solution neutralizes these surface charges of the soil particles within the volume. Following the first solution, a cationic asphalt emulsion suspended in a second solution is injected into the volume. The asphalt emulsion diffuses through the volume and electrostatically bonds with additional soil surrounding the volume such that an electrically conductive water repellant shell enclosing the volume is formed. This shell prevents the leaching of electrolyte from the volume into the additional soil. The second solution also contains a dissolved deliquescent salt which draws water into the volume prior to the formation of the shell. When electrically connected to an electrical installation such as a power line tower, the volume constitutes a grounding electrode for the tower.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {1}
}

Patent:

Save / Share: