Loresco type EnviroCoke IV
(U.S. Patent No. 5,080,773)
combines
the conductive properties of natural
round grain calcined petroleum coke
particles with the low permeability
properties of grout. The Coke
particles are specifically sized to
form the main conductive structure of
the electrically conductive grout. To
enhance the conductivity properties of
EnviroCoke IV, naturally occurring
flakes of high quality graphite are
added to the composite mixture.
Further additives make installation
easier by minimizing the apparent
viscosity of the slurry. The additives
insure the compatibility of EnviroCoke
IV with equipment normally used to
install cathodic protection systems.
EnviroCoke IV is designed specifically
for use in the discharging zone on the
outside of a conductive casing, with
anodes and Loresco type SC-3 inside
the casing. By placing EnviroCoke IV
around the casing on the outside, a
conductive seal is formed which serves
as an environmental precaution against
interchange flow between water bearing
formations in the discharging zones.
When used in conjunction with
PermaPlug, total environmental control
can be established.
EnviroCoke IV, with its conductivity
and ease of installation, provides a
solution to environmental concerns
pertaining to deep anode installations
in sensitive areas.
