Particle size and shape are also important when specifying a backfill. Both parameters determine the contact area between anode and earth whilst influencing the porosity of the column which is important for gas ventilation.
A general purpose coke breeze is for use in shallow horizontal and vertical ground beds. For deep well applications a special calcined petroleum coke breeze is available. Corrocont backfill coke mixes easily with water and provide homogenous environment for impressed current anodes deep or shallow and can substantially lower ground resistance by twenty, thirty, or even forty percent. The coke could be pumped easily into deep anode systems and a dust-free product and, according to EPA extraction tests, is extremely pure and complies with regulations governing buried products. Corrocont backfill coke is produced specifically for cathodic protection applications.
The bulk density and high fixed carbon content coupled with the assured low resistivity medium allows for reduce installation cost, it also saves time and coke breeze material.
Weight: 22.7 kg (50 pound) coated, woven polypropylene bags The coke must not be stored over 17 days of sunlight.