A railway tie, and method for producing said railway tie, includes an outer shell having an inner surface defining a shell void in the outer shell. A void material fills the shell void. An insert is located in the shell void and spans from a first side of the outer shell to a second side of the outer shell and reinforces the outer shell against force applied to one or both of the first side and the second side. The insert may include an insert-shell component, and a conduit component located in the insert-shell component, the conduit component sized and shaped to receive a railway fastener.

A switch (1) for a track system for rail vehicles, wherein the switch (1) has rails (2) and a sequence of sleepers (4) and, in each case on an upper side (5) of the respective sleeper (4), at least two of the rails (2) are fixed to each other in pairs opposite each other, and in each case an intermediate layer (6) is arranged between each one of the rails (2) and the respective sleeper upper side (5), and the sleepers (4) each have a sleeper pad (8) on their undersides (7), opposite their respective upper sides (5), and the sleeper pads (8) each have at least one elastomer layer (9), wherein the intermediate layers (6) each have at least one elastomer layer (10).

A switch (1) for a track system for rail vehicles, wherein the switch (1) has rails (2) and a sequence of sleepers (4) and, in each case on an upper side (5) of the respective sleeper (4), at least two of the rails (2) are fixed to each other in pairs opposite each other, and in each case an intermediate layer (6) is arranged between each one of the rails (2) and the respective sleeper upper side (5), and the sleepers (4) each have a sleeper pad (8) on their undersides (7), opposite their respective upper sides (5), and the sleeper pads (8) each have at least one elastomer layer (9), wherein the intermediate layers (6) each have at least one elastomer layer (10).

The invention relates to a sleeper for the track superstructure, which is manufactured in one piece from a plastic material, with the sleeper having an elongated base shape with two end sections, which are connected by a middle section of the sleeper and held at a distance and on their upper side in each case one contact surface is provided for in each case one rail to be supported on the respective end section with a reinforcement extending in the longitudinal direction of the sleeper being embedded into the middle section. In order to design such a plastic sleeper such that it has optimised strength and can be reliably manufactured even using cost-effective plastic/sand mixtures having a high proportion of sand, the invention proposes that the reinforcement extends over the length of the middle section, that the reinforcement is in each case anchored in the respective end section in an edge region of the end sections assigned to the middle section and in that the reinforcement is wholly or partially arranged in the upper quarter of the height of the sleeper.

The invention relates to a sleeper for the track superstructure, which is manufactured in one piece from a plastic material, with the sleeper having an elongated base shape with two end sections, which are connected by a middle section of the sleeper and held at a distance and on their upper side in each case one contact surface is provided for in each case one rail to be supported on the respective end section with a reinforcement extending in the longitudinal direction of the sleeper being embedded into the middle section. In order to design such a plastic sleeper such that it has optimised strength and can be reliably manufactured even using cost-effective plastic/sand mixtures having a high proportion of sand, the invention proposes that the reinforcement extends over the length of the middle section, that the reinforcement is in each case anchored in the respective end section in an edge region of the end sections assigned to the middle section and in that the reinforcement is wholly or partially arranged in the upper quarter of the height of the sleeper.

A switch (1) for a track system for rail vehicles, wherein the switch (1) has rails (2) and a sequence of sleepers (4) and, in each case on an upper side (5) of the respective sleeper (4), at least two of the rails (2) are fixed to each other in pairs opposite each other, and in each case an intermediate layer (6) is arranged between each one of the rails (2) and the respective sleeper upper side (5), and the sleepers (4) each have a sleeper pad (8) on their undersides (7), opposite their respective upper sides (5), and the sleeper pads (8) each have at least one elastomer layer (9), wherein the intermediate layers (6) each have at least one elastomer layer (10).

A switch (1) for a track system for rail vehicles, wherein the switch (1) has rails (2) and a sequence of sleepers (4) and, in each case on an upper side (5) of the respective sleeper (4), at least two of the rails (2) are fixed to each other in pairs opposite each other, and in each case an intermediate layer (6) is arranged between each one of the rails (2) and the respective sleeper upper side (5), and the sleepers (4) each have a sleeper pad (8) on their undersides (7), opposite their respective upper sides (5), and the sleeper pads (8) each have at least one elastomer layer (9), wherein the intermediate layers (6) each have at least one elastomer layer (10).

A railroad crosstie (tie) may be fabricated from a composite material including a fiber reinforced polymer shell manufactured by pultrusion or other process, and filled by a suitable material, typically selected from expanded elastomeric polymer (such as polyurethane resin or other polymer), concrete, lightweight concrete formed by conventional aggregate, sand, cement, water, and an ultra light filler such as natural materials, sawdust, beads of expanded polymer such as expanded polystyrene, microspheres of glass or plastic, a recycled wooden tie in conjunction with any of the above, or the like. Fasteners may be driven such as spikes, threaded, such as screws, lag screws, spreading screws, rivets, or the like into apertures, pilot holes, or directly into fill absent apertures therein.

A railroad crosstie (tie) may be fabricated from a composite material including a fiber reinforced polymer shell manufactured by pultrusion or other process, and filled by a suitable material, typically selected from expanded elastomeric polymer (such as polyurethane resin or other polymer), concrete, lightweight concrete formed by conventional aggregate, sand, cement, water, and an ultra light filler such as natural materials, sawdust, beads of expanded polymer such as expanded polystyrene, microspheres of glass or plastic, a recycled wooden tie in conjunction with any of the above, or the like. Fasteners may be driven such as spikes, threaded, such as screws, lag screws, spreading screws, rivets, or the like into apertures, pilot holes, or directly into fill absent apertures therein.

A railroad sleeper (1) for fixation of at least a pair of rails (2,2′) of a railroad network is provided, including a contact surface (3), wherein each rail of the pair of rails (2,2′) is fixed spaced apart from each other, the railroad sleeper (1) being configured by including a hollow sector (4) delimited by association of the contact surface (3) with the anchorage walls (5,5′), thus establishing a free portion (17) adjacent to the anchorage walls (5,5′) and opposite the contact surface (3). An embodiment in which the hollow sector (4) of the railroad sleeper is delimited by a support surface and the process of manufacturing a railroad sleeper is also provided.