By adding MARCONITE instead of sand and aggregate used in a standard concrete mix a highly conductive concrete is formed. Used as a backfill material around the earth electrodes, it provides a conductive medium increasing the surface area of the electrode and ensuring a high conductive path between the earth electrode and the surrounding ground. Being a concrete it provides a permanent solution.
BENTONITE is a moisture retaining clay consisting of sodium montmorillonite. By mixing BENTONITE with water the resultant slurry will swell to many times its original dry volume. When used as a backfill material, within a borehole earth system, it will continue to absorb water from the surrounding soil thus helping provide a stable earth resistance. This is also true when the clay is used to surround earth plates and lattice mats. It strongly adheres to the earth electrodes ensuring good electrical conductivity between the electrodes and surrounding ground.