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  2. Precast concrete - Wikipedia

    en.wikipedia.org/wiki/Precast_concrete

    Prestressed concrete panels are widely used in the UK for a variety of applications including agricultural buildings, grain stores, silage clamps, slurry stores, livestock walling and general retaining walls. Panels can be used horizontally and placed either inside the webbings of RSJs or in front of them. Alternatively panels can be cast into ...

  3. Prestressed concrete - Wikipedia

    en.wikipedia.org/wiki/Prestressed_concrete

    Prestressed concrete is a form of concrete used in construction. It is substantially "prestressed" during production, in a manner that strengthens it against tensile forces which will exist when in service. [1] [2]: 3–5 [3] It was patented by Eugène Freyssinet in 1928. [4]

  4. Post-Tensioning Institute - Wikipedia

    en.wikipedia.org/wiki/Post-Tensioning_Institute

    PTI was founded in 1976 (49 years ago) ().Members of the Institute include major post-tensioning materials fabricators. Material manufacturers for prestressing, and companies supplying materials, services, and equipment used in post-tensioned construction.

  5. Spancrete - Wikipedia

    en.wikipedia.org/wiki/Spancrete

    Spancrete produces precast, prestressed concrete products that are used in commercial, industrial, institutional, residential and multifamily construction projects in the Midwest and Southeast. The company also manufactures and sells hollowcore extrusion machines that are used to produce precast concrete internationally.

  6. Concrete - Wikipedia

    en.wikipedia.org/wiki/Concrete

    Prestressed concrete is a form of reinforced concrete that builds in compressive stresses during construction to oppose tensile stresses experienced in use. This can greatly reduce the weight of beams or slabs, by better distributing the stresses in the structure to make optimal use of the reinforcement.

  7. Prestressed structure - Wikipedia

    en.wikipedia.org/wiki/Prestressed_structure

    Naturally precompressed exterior wall of Colosseum, Rome Cable-stayed prestressed concrete bridge over Yangtze river. In structural engineering, a prestressed structure is a load-bearing structure whose overall integrity, stability and security depend, primarily, on prestressing: the intentional creation of permanent stresses in the structure for the purpose of improving its performance under ...

  8. Texas wants to buy surplus border wall parts but U.S ... - AOL

    www.aol.com/texas-wants-buy-surplus-border...

    Texas officials try to intercept sale of surplus border wall materials Patrick noted that Texas became aware of the materials slated for auction on Dec. 12, the same day the Daily Wire reported ...

  9. Hollow-core slab - Wikipedia

    en.wikipedia.org/wiki/Hollow-core_slab

    Diagram of a concrete slab of hollow core construction Photograph of a hollowcore assembly. A hollow core slab, also known as a voided slab, hollow core plank or simply a concrete plank is a precast slab of prestressed concrete typically used in the construction of floors in multi-story apartment buildings.