Loresco type SC-3® is a dust-free
product and, according to EPA extraction tests, is extremely
pure and complies with regulations governing buried products.
Utilizing a modified industrial standard method for testing permeability
(API RP-27), SC-3® will mitigate fluid interchange between aquifers.
Loresco SC-3® is produced specifically for cathodic protection
applications using an exclusive multi-step process. First, a
high quality base carbon with desired characteristics is selected.
Next, this carbon is calcined to a minimum temperature of 1250°
C under exacting and controlled standards. This step results
in semi-graphitized carbon particles with excellent conductivity.
Then, to further improve bulk conductivity, the surfaces of the
individual particles are modified to enhance the contact conductance.
This breakthrough in surface alteration ensures maximum electronic
current transfer with positive anode contact. Finally, a specially
formulated surfactant is added to reduce particle surface tension
for compact settling under water.
Loresco SC-3® has a bulk density of 74 lbs. per cubic foot.
The fixed carbon content is greater than 99.35% by weight. The
bulk density and high fixed carbon content coupled with the assured
low resistivity medium allows for longer groundbed life at a
lower operating cost.
Loresco SC-3® is the recommended product for high current installations.
Specify Loresco SC-3® Super-Conducting Premium Earth Contact Backfill.
Loresco SC-3®, due to its dust-free manufacture, is simple to
install by either mixing and pumping or by pouring. With deep
anode systems, pumping from the bottom up is recommended. Loresco
SC-3® has superb pumping qualities due to the addition of surfactants
and when agitated in water, takes on the characteristics of
heavy mud. A recommended mix is seven gallons of water per
one hundred pounds. After installing SC-3®, allow twenty-four
hours settling time before energizing. The modified surface
of the carbon particles coupled with the action of the surfactants
in SC-3® will achieve positive electrical contact by settling.
Vibrating or compacting is not necessary.
Loresco SC-3® is a surface modified, blended, and sized carbon
backfill with surfactants.
- Bulk Density: 74 lbs. per cubic foot
- Predominantly round particles
- All particles surface modified for maximum electrical conductivity
- Particle Sizing: To be dust free with a maximum particle
size of 1 mm
- Minimum calcination temperature of base materials is 1250° C
- Base materials are calcined under ISO 9002 quality control
- Surfactants are added to assist pumping and settling
- No de-dusting oils are used during the manufacture of base
Loresco SC-3® is shipped in fifty (50) pound (22.7 kg) coated, woven polypropylene
bags. SC-3® may be stored outside for limited periods (not to exceed four hundred
hours of sunlight). Pallets are available with fifty bags per pallet. Proven
export packaging is also available.