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  2. Concrete sleeper - Wikipedia

    en.wikipedia.org/wiki/Concrete_sleeper

    Old concrete sleepers can be used for things like retaining walls, else they might be crushed to recycle gravel and the steel reinforcing. [ 9 ] Special sleepers may be necessary on extremely sharp curves, such as the new triangle at Newmarket, New Zealand on the 1,067 mm ( 3 ft 6 in ) gauge of radius 95 m (312 ft).

  3. Sleeper wall - Wikipedia

    en.wikipedia.org/wiki/Sleeper_wall

    Essentially it is a wall in the way that it is constructed but a sleeper in the way that it functions. Stretcher bond or header-stretcher bond can be used in these walls. sleeper wall can also refer to a retaining wall made from railroad ties. It is used to prevent erosion. It can be made from bricks or concrete blocks. The wall is often used ...

  4. Retaining wall - Wikipedia

    en.wikipedia.org/wiki/Retaining_wall

    A basement wall is thus one kind of retaining wall; however, the term usually refers to a cantilever retaining wall, which is a freestanding structure without lateral support at its top. [2] These are cantilevered from a footing and rise above the grade on one side to retain a higher level grade on the opposite side.

  5. Ballastless track - Wikipedia

    en.wikipedia.org/wiki/Ballastless_track

    Slab track with flexible noise-reducing rail fixings, built by German company Max Bögl, on the Nürnberg–Ingolstadt high-speed line. A ballastless track or slab track is a type of railway track infrastructure in which the traditional elastic combination of sleepers and ballast is replaced by a rigid construction of concrete or asphalt.

  6. Precast concrete - Wikipedia

    en.wikipedia.org/wiki/Precast_concrete

    Precast concrete is a construction product produced by casting concrete in a reusable mold or "form" which is then cured in a controlled environment, transported to the construction site and maneuvered into place; examples include precast beams, and wall panels, floors, roofs, and piles.

  7. Revetment - Wikipedia

    en.wikipedia.org/wiki/Revetment

    Asphalt and sandbag revetment with a geotextile filter. A revetment in stream restoration, river engineering or coastal engineering is a facing of impact-resistant material (such as stone, concrete, sandbags, or wooden piles) applied to a bank or wall in order to absorb the energy of incoming water and protect it from erosion.

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