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  2. Rebar - Wikipedia

    en.wikipedia.org/wiki/Rebar

    Rebar (short for reinforcing bar), ... 2,500 meters of rebar was used in the 14th-century Château de Vincennes. [7] ... Mass per metre length, kg/m 12 113 0.888 16 201

  3. Reinforced concrete column - Wikipedia

    en.wikipedia.org/wiki/Reinforced_Concrete_Column

    Reinforcing rebar is placed axially in the column to provide additional axial stiffness. Accounting for the additional stiffness of the steel, the nominal loading capacity P n for the column in terms of the maximum compressive stress of the concrete f c ' , the yield stress of the steel f y , the gross cross section area of the column A g , and ...

  4. Reinforced concrete - Wikipedia

    en.wikipedia.org/wiki/Reinforced_concrete

    The reinforcement is usually, though not necessarily, steel reinforcing bars (known as rebar) and is usually embedded passively in the concrete before the concrete sets. However, post-tensioning is also employed as a technique to reinforce the concrete. In terms of volume used annually, it is one of the most common engineering materials.

  5. Concrete cover - Wikipedia

    en.wikipedia.org/wiki/Concrete_cover

    Concrete and steel reinforcement bars combine to create strong, resilient structures in the following ways: Upon contact with each other, the cement paste and steel rebar form a non-reactive surface film preventing corrosion. Reinforcement bars or beams can be strategically set throughout the concrete to achieve the required support system.

  6. Insurance company halts plan to put time limits on coverage ...

    www.aol.com/news/doctors-raising-alarm-insurance...

    After sharp criticism from anesthesiologists, an insurance company is halting its plan to limit the amount time it would cover anesthesia used in surgeries and procedures. Anthem Blue Cross Blue ...

  7. Anchorage in reinforced concrete - Wikipedia

    en.wikipedia.org/wiki/Anchorage_in_Reinforced...

    Reinforced concrete is concrete in which reinforcement bars ("rebars"), reinforcement grids, plates or fibers are embedded to create bond and thus to strengthen the concrete in tension. The composite material was invented by French gardener Joseph Monier in 1849 and patented in 1867. [1]

  8. How adorable pooches are helping NYC students boost their ...

    www.aol.com/adorable-pooches-helping-nyc...

    Chip is one of dozens of dogs being rotated through the Comfort Dog Program, which costs participating schools $1,000 per year, taken out of their school budget.

  9. The 25 best last-minute gifts that will still arrive by Christmas

    www.aol.com/lifestyle/last-minute-christmas...

    Still shopping for Christmas gifts? Don't sweat it — we've rounded up 25 incredible options that will ship by December 25.

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