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  2. Rebar - Wikipedia

    en.wikipedia.org/wiki/Rebar

    In early concrete construction bars of one inch and larger were only available in square sections, and when large format deformed round bars became available around 1957, [21] the industry manufactured them to provide the cross-sectional area equivalent of standard square bar sizes that were formerly used.

  3. Crack spacing of reinforced concrete - Wikipedia

    en.wikipedia.org/wiki/Crack_spacing_of...

    The effective embedment zone is the area of concrete around the reinforcing bar at the distance of 7.5 bar diameter = coefficient that characterizes bond properties of bars = 0.4 for deformed bars = 0.8 for plain bars = coefficient to account for strain gradient

  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. Bridgeport Lamp Chimney Company Bowstring Concrete Arch ...

    en.wikipedia.org/wiki/Bridgeport_Lamp_Chimney...

    It was an era of intense competition among reinforcing bar manufacturers with each individual deformed bar pattern carefully protected by patents. Smooth bars of approximately 1 ⁄ 4 inch (6.4 mm) diameter were employed for stirrups throughout the bridge structure. [3] Arch: 12 by 19 inches (300 by 480 mm) Tension ties: 9 by 15 inches (230 by ...

  6. Properties of concrete - Wikipedia

    en.wikipedia.org/wiki/Properties_of_concrete

    The reinforcement is often steel rebar (mesh, spiral, bars and other forms). Structural fibers of various materials are available. Concrete can also be prestressed (reducing tensile stress) using internal steel cables (tendons), allowing for beams or slabs with a longer span than is practical with reinforced concrete alone.

  7. Reinforced solid - Wikipedia

    en.wikipedia.org/wiki/Reinforced_solid

    The reinforcement is directed in the x, y and z direction. The reinforcement ratio is defined in a cross-section of a reinforcing bar as the reinforcement area over the total area , which is the brittle material area plus the reinforcement area.

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    One size fits all, but there are over 20 styles and colors to choose from. Pro tip: If you buy this beauty to stay warm, maybe think twice before pairing it with ripped jeans. (Amazon)

  9. Thermomechanical processing - Wikipedia

    en.wikipedia.org/wiki/Thermomechanical_processing

    Therefore TMT bars resist corrosion better than cold, twisted and deformed (CTD) bars. After thermomechanical processing, some grades in which TMT Bars can be covered includes Fe: 415 /500 /550/ 600. These are much stronger compared with conventional CTD Bars and give up to 20% more strength to concrete structure with same quantity of steel.

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