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  2. Formwork - Wikipedia

    en.wikipedia.org/wiki/Formwork

    Rebar has been stubbed up out of the concrete slab to form the base of future columns Timber formwork for a concrete column. Adjustable metal screw jacks both stabilize and plumb the form Aluminum formwork system Sketch of the side view of traditional timber formwork used to form a flight of stairs Placing a wall form. A matching form will be ...

  3. Insulating concrete form - Wikipedia

    en.wikipedia.org/wiki/Insulating_concrete_form

    The first expanded polystyrene ICF Wall forms were developed in the late 1960s with the expiration of the original patent and the advent of modern foam plastics by BASF. [citation needed] Canadian contractor Werner Gregori filed the first patent for a foam concrete form in 1966 with a block "measuring 16 inches high by 48 inches long with a tongue-and-groove interlock, metal ties, and a waffle ...

  4. Rebar detailing - Wikipedia

    en.wikipedia.org/wiki/Rebar_detailing

    Rebar detailing is the discipline of preparing 'shop/placing' or 'fabrication' drawings or shop drawings of steel reinforcement for construction. Engineers prepare 'design drawings' that develop required strengths by applying rebar size, spacing, location, and lap of steel .

  5. Rebar - Wikipedia

    en.wikipedia.org/wiki/Rebar

    Historically in Europe, rebar is composed of mild steel material with a yield strength of approximately 250 MPa (36 ksi). Modern rebar is composed of high-yield steel, with a yield strength more typically 500 MPa (72.5 ksi). Rebar can be supplied with various grades of ductility.

  6. Reinforcement in concrete 3D printing - Wikipedia

    en.wikipedia.org/wiki/Reinforcement_in_concrete...

    [8] [9] They are erected to reinforce cages around which concrete is printed to form wall and beam elements, making rebars an effective pre-installment strategy. [10] A bunch of rebars. The rebar-based formative skeletal structure can also act as a core on which printable concrete is shotcreted in a new method developed at TU Braunschweig. [11]

  7. US says Russia escalated Ukraine conflict by deploying North ...

    www.aol.com/news/us-says-russia-escalated...

    WASHINGTON (Reuters) -The United States said on Monday it was Russia that is escalating the conflict in Ukraine by deploying North Korean troops, after the Kremlin warned that Washington would ...

  8. Can JonBenét Ramsey's murder be solved by 7 items of evidence?

    www.aol.com/news/jonben-t-ramseys-murder-solved...

    In the early morning hours of Dec. 26, 1996, Patsy Ramsey called 911 to report her 6-year-old daughter JonBenét missing, and found a rambling ransom note left inside their Boulder, Colorado, home.

  9. Wall footing - Wikipedia

    en.wikipedia.org/wiki/Wall_footing

    Wall Footing . A wall footing or strip footing is a continuous strip of concrete that serves to spread the weight of a load-bearing wall across an area of soil. [1] It is a component of a shallow foundation. [1] Wall Footing. Wall footings carrying direct vertical loads might be designed either in plain concrete or in reinforced concrete.