Breaking or demolition device for concrete structures

摘要

A cut-off element for concrete structures is formed by a plastic material flask having a flat-closed base and a tapering side envelope forming an acute angle with the base, said angle being between 25° and 60° for generating expansion forces so as to provoke a fracture of the concrete part along the cut-off zone defined by the base, and a lifting movement with slight amplitude of the concrete block after cut-off.