Device and a procedure for cast-in-situ a wall or similar

Abstract

The present invention concerns a shuttering (100) for the formation of a wall or similar, comprising a first wall formwork device (10) of an insulating material and a second wall formwork device (20), which are formed to be arranged in parallel so that a space (x) is formed between them intended to be filled with flowing concrete. A number of form ties (30) are arranged to connect the first and second wall formwork devices (10,20). The first wall formwork device (10) comprises a number of building or plastic foam blocks (11), and the second wall formwork device (20) comprises a number of sheathings (21). Each form tie (30) is provided with a first end having a fastening element (40) formed for connection with the first wall formwork device (20), and in its second end provided with a clamp tie device (50) for locking to the second wall formwork device upon temporary mounting and retention / clamping of said second wall formwork device (20) during the concreting, and releasing / unlocking after casting for allowing the wall formwork device (20) to be removed, form stripping. The invention also concerns a procedure for forming, for instance, a wall as well as a support for a said shuttering.

Description

TECHNICAL FIELD[0001]The present invention relates to a shuttering for the formation of a wall or similar according to the preamble of claim 1. The invention also relates to a procedure for producing a wall or similar according to the preamble of claim 15. The invention also concerns a scaffold, which can be used in a procedure according to the above, but also separately in other or similar contexts.PRIOR ART[0002]Houses having a solid framework, for example of concrete, brick or expanded clay, are known to have many good properties such as that the houses have good fire safety, for instance compared with wooden houses, they last long and are not so maintenance-requiring. Other advantageous properties of houses built with a solid framework are that they give a good indoor climate with small temperature variations over day and night and have good properties as for resisting moisture and mould.[0003]The most common methods that are used today for providing a solid framework consists o...

AI Technical Summary

Benefits of technology

The invention provides a shuttering that allows for easy and inexpensive construction of walls and buildings. The shuttering is flexible, mold-proof, energy-efficient, and can be used indoors. Additionally, the invention provides a support that simplifies the construction process, makes walls straight, and can be easily mounted, stored, and transported. Overall, the invention offers a simpler and more efficient way to build structures.

Problems solved by technology

However, a disadvantage consists of it requiring a high degree of skill of craftsmanship.

Concrete is a highly formable and flexible material, and in the construction of houses, it is in principle the formwork which becomes limiting as for the flexibility and freedom of choice of the construction project.

However, it is today very uncommon to cast something else than a bottom plate, and possibly basement walls on-site.

The reason for this is that forms and formworks are very expensive and particularly in small projects, these costs often amount to more than 50% of the total cost of the framework.

For large formwork, the price per square metre is lower, especially in large construction projects, where the same construction form can be re-used many times, but large formwork is ungainly and difficult to mount.

Another disadvantage is that after casting, insulation has to be mounted with some form of system.

However, a disadvantage has been found be that, since the concrete is insulated on both sides, the same is climatically disadvantageous as for the indoor climate, and the advantages achieved by constructing houses with a solid framework are partly not made up for.

Another disadvantage consists in that such a wall, irrespective of on the inside or the outside, is finished for being provided with a surface layer.

Foamed plastic on the inside of a framework may also entail increased risk in case of fire.

Thus, all now existing construction systems are impaired by disadvantages.

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