Systems and method for heating a concrete slab and for preventing accumulation of meltable precipitation thereon

A system for preventing accumulation of meltable precipitation on a surface, the system comprising:

• a concrete slab having a slab body with a top surface opposed to a bottom surface, the slab body having electrically conductive concrete;
• a plurality of elongated electrodes within said slab body, a first set of said elongated electrodes being spaced apart from one another proximate to said top surface and a second set of said elongated electrodes being spaced apart from one another away from said elongated electrodes of the first set, the elongated electrodes of the first set being interspersed with the elongated electrodes of the second set;
• and
• a voltage source being electrically connected to the elongated electrodes and being operable to apply a voltage to said elongated electrodes, an electrical current thereby propagating through the electrical conductive concrete obliquely across said slab body, between the elongated electrodes of the first set and the elongated electrodes of the second set and generating heat within said slab body for melting said accumulation on said top surface.