system for sealing of viaducts in time or to find rettilinee, without the need for removal of the

摘要

system for re sealing surfaces estradosso of viaducts in time or to find rettilinee.without the need to remove the ballast or interruption of rail traffic.including the operations to introduce the ballast of the means of implementation designed to spray a product fluid impermeabilizzante up to bring the spraying nozzles in contact with debetween surface of estradosso and then spray the surface itself, below the ballast.in succession with one or more substances waterproofing to form on it a cloak impermeabilizzante.