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Materials used include 60-centimetre (24 in)-diameter cardboard tubes, timber and steel. [41] The roof is of polycarbon, [42] with eight shipping containers forming the walls. "coated with waterproof polyurethane and flame retardants" with two-inch gaps between them so that light can filter inside. [43]
For removable forms, once the concrete has been poured into formwork and has set (or cured), the formwork is struck or stripped to expose the finished concrete. The time between pouring and stripping depends on the job specifications, which include the cure required, and whether the form is supporting any weight; it is usually at least 24 hours ...
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 ...
A heavy duty composite paper tube. The layers of spiral-wound paper used in its construction are visible. This type of heavy tube is also used as a core for wrapping roll goods. Long corrugated box, square cross section Paperboard tubes. A shipping tube, mailing tube, or cardboard tube is a shipping container used to ship long items. It is ...
The roof is of polycarbon, [11] with eight shipping containers forming the walls. The foundation is concrete slab. The foundation is concrete slab. The architect wanted the cardboard tubes to be the structural elements, but local manufacturers could not produce tubes thick enough and importing the cardboard was rejected. [ 12 ]
The forms used in a precast plant can be reused hundreds to thousands of times before they have to be replaced, often making it cheaper than onsite casting in terms of cost per unit of formwork. [2] Precast concrete forming systems for architectural applications differ in size, function, and cost.