Ground electrode backfill

Details Ground electrode backfill Ground electrode backfill

1991-04-05

1992-01-14

Barr, Josephine

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204197, 204147, 204148, 174 6, 252502, C23F 1300, H01R 466

Patent

active

050807730

ABSTRACT:
A low resistance non-permeable backfill especially for use in vertical anode beds for the cathodic protection of subsurface metallic structures includes a mixture of portland cement, calcined fluid petroleum coke, micro-size carbon rods and high structure carbon black.

REFERENCES:
patent: 2553654 (1951-05-01), Heise
patent: 3573427 (1971-04-01), Minsk
patent: 3725669 (1973-04-01), Tatum
patent: 3941918 (1976-03-01), Nigol et al.
patent: 3962142 (1976-06-01), Freeman et al.
patent: 4544464 (1985-10-01), Bianch et al.
patent: 4676377 (1988-11-01), Tatum, Jr.
patent: 4786388 (1988-11-01), Tatum, Jr.
patent: 4806272 (1989-02-01), Wiley
patent: 4994629 (1991-02-01), Tatum, Jr. et al.

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