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This formwork is assembled on site, usually out of insulating concrete forms (ICF). The formwork stays in place after the concrete has cured, and may provide advantages in terms of speed, strength, superior thermal and acoustic insulation, space to run utilities within the EPS layer, and integrated furring strip for cladding finishes.
Detail of the Royal National Theatre (1976) showing the grain of the formwork Example of large board form concrete formwork, constructed to create a complex concrete wall form with the raw concrete aesthetic of béton brut. The use of béton brut was pioneered by modernist architects such as Auguste Perret and Le Corbusier.
Two examples of high performance concrete in practice, Part 2, Quality Concrete, May, 1995, pp. 127–130. Price, W.F. and Widdows, S.J. The effects of permeable formwork on the surface properties of concrete.
Precast concrete is a construction product produced by casting concrete in a reusable mold or "form" which is then cured in a controlled environment, transported to the construction site and maneuvered into place; examples include precast beams, and wall panels, floors, roofs, and piles.
Formwork is used for the process of creating a mold into which concrete is poured and solidified. Traditional formwork is fabricated using wood, but it can employ steel, glass fibre, reinforced plastics and other materials. [3] Formwork for beams takes the form of a box that is supported and propped in the correct position and level.
An example of the originally patented insulated concrete form made from cement bonded wood fiber by Nexcem. In 1937, Swiss nationals August Schnell and Alex Bosshard developed the first ICFs, which were made of treated wood fibers and cement under the Durisol (later Nexcem) brand name. Manufacturing in North America began in 1953 in Canada
Cast-in-place concrete or Cast-in-situ concrete is a technology of construction of buildings where walls and slabs of the buildings are cast at the site in formwork. [1] This differs from precast concrete technology where slabs are cast elsewhere and then brought to the construction site and assembled. [ 2 ]
Climbing formwork, also known as jumpform, is a special type formwork for vertical concrete structures that rises with the building process. While relatively complicated and costly, it can be an effective solution for buildings that are either very repetitive in form (such as towers or skyscrapers) or that require a seamless wall structure ...
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