Electricity: conductors and insulators – Earth grounds
Patent
1979-01-02
1980-03-11
Askin, Laramie E.
Electricity: conductors and insulators
Earth grounds
106277, 252 622, 252518, 405263, 405265, H01R 306
Patent
active
041929632
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.
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Chemical Abstracts, vol. 80, 1974, p. 391, Abstract No. 114016s, Yoshihara, T. et al., "Decreasing Soil Resistance".
Dybalski, Jack N., paper entitled, "The Chemistry of Asphalt Emulsions", Fifty-Fifth Annual Meeting Transportation Research Board, Jan. 1976.
Koehmstedt, P. L. et al., "Use of Asphalt Emulsion Sealants to Contain Radon and Radium in Uranium Tailings", published Jan. 1977, by Battelle Pacific Northwest Laboratories, Richland, Washington.
Askin Laramie E.
Battelle (Memorial Institute)
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