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Other form liner materials used can include polystyrene foam, fiberglass, and even aluminum-- styrene plastic, ABS plastic, and urethane are considered to be the industry standard, and are most often specified in plans by architects and engineers. The form liners are attached to forms and concrete is placed against the liner.
When the original art is complete, a cast is made using synthetic liquid rubber, and from this cast, form liners are produced in the reverse image of the original. The form liner then acts as a mold for the concrete to be formed against. Once the concrete is set, the form liner is stripped from the hardened concrete surface.
Formwork liner for long life concrete, ... of concrete quality prepared with permeable forms and plywood forms. Transactions of the Japan Concrete Institute, Vol 10 ...
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 ...
Due to its low cost, concrete was a popular replacement for stone as a structural building element. [2] As a building material, concrete was historically consigned to unseen structural positions such as behind a veneer or in the basement, but evolutions in texturing technology produced concrete blocks that could perform aesthetically as well as structurally. [4]
Concrete used for canal lining is typically non-reinforced, as a way to reduce cost. A common method for constructing concrete lining is the use of slip forms, which are drawn down the length of the canal as the concrete is poured. [3] Hand laying of concrete or prefabricated sections are also used when only a short distance needs to be covered ...
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