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  2. Strongback (girder) - Wikipedia

    en.wikipedia.org/wiki/Strongback_(girder)

    In shipbuilding, a strongback, known as a waler is oriented lengthwise along a ship to brace across several frames to keep the frames square and plumb. [1] In formwork strongbacks (typically vertical) reinforce typically horizontal walers to provide additional support against hydrostatic pressure during concrete pours.

  3. Hollow structural section - Wikipedia

    en.wikipedia.org/wiki/Hollow_structural_section

    For example, barriers around parking areas made of HSS are often filled, to at least bumper height, with concrete. This is an inexpensive (when replacement costs are factored in) way of adding compressive strength to the bollard, which can help prevent unsightly local denting, though it does not generally significantly increase the overall ...

  4. Schmidt hammer - Wikipedia

    en.wikipedia.org/wiki/Schmidt_hammer

    Testing the compressive strength of a concrete cube using Schmidt hammer Cross section. The hammer measures the rebound of a spring-loaded mass impacting against the surface of a sample. The test hammer hits the concrete at a defined energy. Its rebound is dependent on the hardness of the concrete and is measured by the test equipment.

  5. Shear strength - Wikipedia

    en.wikipedia.org/wiki/Shear_strength

    Mam Tor road destroyed by subsidence and shear, near Castleton, Derbyshire.. In engineering, shear strength is the strength of a material or component against the type of yield or structural failure when the material or component fails in shear.

  6. Strongback - Wikipedia

    en.wikipedia.org/wiki/Strongback

    Strongback (girder), a beam or girder which acts as a secondary support member to existing structure Strongback, the band formed by two former members of Palladium (British band) in 2009 Strongback, any one of at least three Caribbean herbs, Morinda royoc , Desmodium abscendens , and Cuphea parsonsia

  7. Properties of concrete - Wikipedia

    en.wikipedia.org/wiki/Properties_of_concrete

    Concrete has a very low coefficient of thermal expansion, and as it matures concrete shrinks. All concrete structures will crack to some extent, due to shrinkage and tension. Concrete which is subjected to long-duration forces is prone to creep. The density of concrete varies, but is around 2,400 kilograms per cubic metre (150 lb/cu ft). [1]

  8. 11 Things to Do on Inauguration Day That Are Great for Your ...

    www.aol.com/11-ways-avoid-spiraling-inauguration...

    Experts suggest 11 healthy ways to spend Inauguration Day.

  9. Deformation (engineering) - Wikipedia

    en.wikipedia.org/wiki/Deformation_(engineering)

    Note that not all elastic materials undergo linear elastic deformation; some, such as concrete, gray cast iron, and many polymers, respond in a nonlinear fashion. For these materials Hooke's law is inapplicable. [2] Difference in true and engineering stress-strain curves