Abstract: The process for the temporary consolidation of railroad track ballast, in particular during the time of redevelopment or reconstruction of a parallel set of tracks, is performed in that the ballast is cemented partially in particular in the side area by a multi component adhesive, wherein this cementation may be broken up mechanically later without affecting reuse of the ballast.

Abstract: The process for anchoring securing elements in drill holes, particularly screws, nails, anchors, clamp irons, and bolts, by using two-component adhesives and metal additives, is such thata) the drill holes optionally rebored, cleaned and degreased in advance are filled up to from half to three quarters with a compressible mixture of highly wear-resistant fibers or chips made of metals, polymers and/or ceramics with an average length smaller than half the drill hole diameter, subsequently, a blocker is optionally added, then both adhesive components are introduced successively or simultaneously, and then the residual portion of the required amount of fibers or chips is filled in, orb) a kneadable mixture is prepared from a compressible mixture of highly wear-resistant fibers or chips with an average length smaller than half the drill hole diameter and both adhesive components, and the mass is forced into the drill holes,and subsequently, the securing elements are inserted and optionally secured.

Abstract: In the process of the invention, multi-component resins are applied to porous, granular materials intended for subsequent consolidation. Application is carried out by feeding the components, physically separated from each other, under relatively high pressure, to a mixing chamber, mixing them by turbulent means in the mixing chamber, and applying the resulting mixture, at relatively low pressure, as a thin curtain in laminar flow to the material. The simplest form of the device of the invention comprises: a) separate feed lines for the components at relatively high pressure; b) a mixing chamber preferably designed as a static mixer; c) a fan spray nozzle working at relatively low pressure. The process and device are used to increase the sound-absorption and/or ease-of-cleaning characteristics of a railway tracks, to increase the cross-sliding resistance of railway sleepers on ballast, and to smooth the transition between a soft and hard railway track.