Methods and devices for planing ice are described that include at least receiving, at a planing apparatus, an elongate ice ingot, feeding the elongate ice ingot at a configurable rate through an opening in a cutterhead assembly of the planing apparatus, and planing, by the cutterhead assembly, a plurality of surfaces of the elongate ice ingot at a predefined depth as the elongate ice ingot is fed linearly through the opening of the cutterhead assembly. The planing may result in a planed ice ingot.

Methods and devices for planing ice are described that include at least receiving, at a planing apparatus, an elongate ice ingot, feeding the elongate ice ingot at a configurable rate through an opening in a cutterhead assembly of the planing apparatus, and planing, by the cutterhead assembly, a plurality of surfaces of the elongate ice ingot at a predefined depth as the elongate ice ingot is fed linearly through the opening of the cutterhead assembly. The planing may result in a planed ice ingot.

Systems and methods for treating concrete, which includes the steps of wetting a surface of concrete with a amorphous colloidal silica, allowing time for the colloidal silica to penetrate the concrete surface, and cutting the surface of the concrete with a bladed tool wherein the longitudinal blade portion is positioned approximately at an angle between 30 degrees and 90 degrees relative to the surface of the concrete.

Systems and methods for treating concrete, which includes the steps of wetting a surface of concrete with a amorphous colloidal silica, allowing time for the colloidal silica to penetrate the concrete surface, and cutting the surface of the concrete with a bladed tool wherein the longitudinal blade portion is positioned approximately at an angle between 30 degrees and 90 degrees relative to the surface of the concrete.

The invention concerns a processing apparatus for processing an upper segment edge of a pylon segment of a concrete pylon for preparing the pylon segment for placement thereon of at least one further pylon segment. According to the invention it is proposed that the processing apparatus includes a processing means for processing the segment edge, and a carrier apparatus to be fixed in the region of the segment edge for displaceably carrying and guiding the processing means along the segment edge.

The invention concerns a processing apparatus for processing an upper segment edge of a pylon segment of a concrete pylon for preparing the pylon segment for placement thereon of at least one further pylon segment. According to the invention it is proposed that the processing apparatus includes a processing means for processing the segment edge, and a carrier apparatus to be fixed in the region of the segment edge for displaceably carrying and guiding the processing means along the segment edge.

Device and corresponding method for processing a hard surfacing. The device comprises a frame to be mounted to a vehicle, a support coupled to the frame, for carrying at least a first rotary processing unit for processing the hard surfacing, and wherein each rotary processing unit comprises a drive motor with a drive shaft, for rotating the rotary processing unit relative to the support; a substantially flat first disc comprising a plurality of processing heads for processing the hard surfacing; a substantially flat second disc coupled via vibration-damping coupling elements to the first disc and extending parallel to the first disc; a substantially flat third disc coupled via one or more deformation-reducing coupling elements to the second disc and extending parallel to the second disc, wherein the first, second and third discs form a stack of discs that is rotatable relative to the support.