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  2. Slip forming - Wikipedia

    en.wikipedia.org/wiki/Slip_forming

    The first residential building of slipform construction; erected in 1950 in Västertorp, Sweden, by AB Bygging Later picture of the residential building in Västertorp. Slip forming, continuous poured, continuously formed, or slipform construction is a construction method in which concrete is placed into a form that may be in continuous motion horizontally, or incrementally raised vertically.

  3. City fills in underground vaults of downtown buildings. Why ...

    www.aol.com/city-fills-underground-vaults...

    Salem poured its first concrete sidewalk in 1883 in front of a building on the southeast corner of Commercial and Chemeketa. First National Bank operated there for nearly 20 years.

  4. Sidewalk - Wikipedia

    en.wikipedia.org/wiki/Sidewalk

    Concrete sidewalk with horizontal strain-relief grooves. In the United States and Canada, the most common type of sidewalk consists of a poured concrete "ribbon", examples of which from as early as the 1860s can be found in good repair in San Francisco, and stamped with the name of the contractor and date of installation.

  5. Concrete slab - Wikipedia

    en.wikipedia.org/wiki/Concrete_slab

    After the concrete has set the wood may be removed. Formwork can also be permanent, and remain in situ post concrete pour. For large slabs or paths that are poured in sections, this permanent formwork can then also act as isolation joints within concrete slabs to reduce the potential for cracking due to concrete expansion or movement.

  6. List of construction methods - Wikipedia

    en.wikipedia.org/wiki/List_of_Construction_methods

    Concrete is a mix of cement and water plus an aggregate such as sand or stone. Its compression strength means it can support heavy weights. [5] Insulating concrete forms (ICFs) cam be used for home construction. They are made by pouring concrete between rigid panels, often made out of polystyrene foam. Rebar can provide additional strength ...

  7. Column: LA's cracked, ruptured sidewalks are a scandal. Where ...

    www.aol.com/news/column-las-cracked-ruptured...

    An audit of L.A.'s scandalous response to broken sidewalks put the service call backlog at 50,000, but there is no long-range plan in place to make those fixes Column: LA's cracked, ruptured ...

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