Method and device for cutting gas concrete

An apparatus for cutting gas concrete material in its plastic state, comprising at least a carrier accommodating a block for cutting, a standing cutting structure normally in a path of the carrier, first drive means for driving the material along the path over the carrier through said cutting structure, a plurality of cutting wires arranged in said cutting structure such that ends of the wires are held in place on said cutting structure by means of wire end holders, second drive means for reciprocal upward and downward driving of said cutting wires in their longitudinal direction, means for forcing said cutting structure to a position clearing the carrier, said second drive means driving the cutting wires of an average velocity of at least six times the velocity of which said first drive means drives the material along the path over the carrier.