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Coffrargile - Permanent Formwork
Permanent formwork to effectively handle the movements of clayey soils and protect floors from shrinkage/swelling. With foundation problems in clayey soils, conditions which facilitate a “proactive” approach with regard the soil rarely occur within the scope of the project. In most cases, the structure is designed and its behaviour is then anticipated as a function of the mechanical characteristics of the soil, while only seldom is it possible to act on these in order to modify unfavourable environmental conditions. Daliform Group created Coffrargile, a disposable formwork made of recycled plastic, to effectively handle the movements of clayey soils and protect floors from shrinkage/swelling.Coffrargile is used in combination with Beton Up, an accessory that prevents the reinforced concrete from forming the “pillars” typical of the classic Iglu’® system.
In this way, the formworks take on the function of simple scaffolding on which a load-bearing slab of reinforced concrete can be installed with a cavity below, the purpose of which is to accommodate the swelling and shrinkage of the sediment underlying the foundation due to the special mechanical properties of clayey soils.
- Impervious to the weather; compared to the alternative system which is composed of disposable formwork made of biodegradable cardboard and for which outdoor storage on building sites is unsuitable due to the risk of humidity, fog or precipitation, the Coffrargile system is impervious to the weather.
- Ease of storage and handling on site.
- Resistant to termites, insects, rodents and other animals, which, can in contrast, destroy cardboard elements.
- Ecological and environmentally compliant. Compared to the alternative system of formwork made of cardboard, Coffrargile leaves no compostable organic residue that can give rise to offensive odours and provide nesting material for various animals.
- Greater solidity during the setting of the load-bearing reinforced concrete slab.
- Does not transmit stresses to the structures that it supports. Coffrargile provides a void, whose height depends on the thickness of the product, under the load-bearing slab in order to adapt to any problems with the soil, regardless of the amount of swelling anticipated.
- Easy installation due to the lightness and simplicity of interlocking elements.
- Supports the weight/passage of workers on site, avoiding the risk of accidents and injuries.
Coffrargile is the effective solution for creating cast-in-place reinforced concrete slabs that do not suffer from the effects of swelling and shrinkage inherent in clayey soils for the construction of office and commercial buildings as well as civil and industrial projects which are threatened by underlying clayey sediments.
- Working dimensions**: cm: 50 x 50 x 16* h
- Height tunnel clearance: h cm: 11
- Quantity of concrete to the crown***: m3/m2: 0,034
- Weight of each unit: kg/pcs: 1,536
- Pallet dimensions: cm: 110 x 110 x 244 h
- M2 pallet: m2/PAL: 75
- Pallet units: pcs/PAL: 300
- Pallet weight: kg/PAL: 474
- Accessory: L-Plast Panel: cm (HxLxD): 14x205x7
The material is waterproof and can therefore be stored outside.
* Other heights are available on request.
** Recyclable material is allowed a size tolerance of ± 1,5%.
*** The volume may vary depending on the pouring condition and the tolerance of the material.
Dry assembly method
- Position the first element to the upper left with respect to the work surface, making sure that the arrow is pointing up.
- Unite the elements in sequence, by horizontal row, proceeding from the left towards the right and from the top downwards (following the direction normally used for writing), as shown graphically on the crown of each unit.
