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.

1 . Shuttering for the formation of a wall or similar, comprising a first wall formwork device comprising an insulating material and a second wall formwork device formed to be arranged essentially parallel to said first wall formwork device with a formed space between said first and second wall formwork devices and which space is formed to be filled with flowing concrete, and a number of form ties arranged to connect said first and second wall formwork devices, wherein the first wall formwork device comprises a number of building or plastic foam blocks, the second wall formwork device comprises a number of sheathings, each form tie is provided with a first end formed for connection with said building or plastic foam blocks, a number of building or plastic foam blocks are brought together, for instance stacked on each other, and the second end of said form ties, opposite said first end, is provided with a clamp tie device, at least comprising a removable locking part for temporary mounting and retention/clamping during concreting and locking of said second wall formwork device, and releasing/unlocking after casting for allowing the sheathing or the sheathings to be removed after form stripping, characterized in that the first end of each form tie is provided with a fastening element by which the form tie is connected with said first wall formwork device, that said fastening element is fixedly or detachably connected with, or formed integrally with, said form tie and formed to have a principal extension that forms an angle, for instance essentially 90°, with the longitudinal extension of said form tie, that the fastening element is formed to be pressed down into the first wall formwork device, by the fastening element being plate-shaped, having a tapering shape, being cam-like, or being toothed, that one or more of said building or plastic foam blocks are provided with a slit or reception opening adapted to a fastening element, and that the fastening element for the fastening of a form tie to a building or plastic foam block is receivable in said reception opening or slit. 
     
     
         2 . Shuttering according to  claim 1 , characterized in that the sheathing or the sheathings is/are provided with recesses along the edge of the sheathing/sheathings arranged in order to receive form ties. 
     
     
         3 . Shuttering according to  claim 1 , characterized in that it comprises two second wall formwork elements formed to be connected with the first wall formwork device, on opposite sides of the same, that the form ties are connected with the first wall formwork device via the fastening elements and arranged to project in opposite directions in order to, via the locking devices, detachably be connected with the respective second wall formwork device so that a sandwich structure is formed with concrete on both sides of an insulating structure formed of the first wall formwork device. 
     
     
         4 . Procedure for forming a wall or similar, comprising the steps of forming a first wall formwork device comprising an insulating material and a second wall formwork device, wherein said second wall formwork device is arranged essentially parallel to said first wall formwork device and in such a way that a space is formed between said first and second wall formwork devices, of filling the space with flowing concrete, and the arrangement of a number of form ties to connect said first and second wall formwork devices, and that it comprises the steps of:
 bringing together a number of building or plastic foam blocks, for instance comprising stacking said building or plastic foam blocks on each other, in order to form the first wall formwork device;   
       characterized in that it is allowed
 to attach a number of form ties to the first wall formwork device by connecting the respective first ends of the form ties with the first wall formwork device; that it is allowed 
 to arrange the second wall formwork device essentially parallel to the first wall formwork device; that it is allowed 
 to lock the second wall formwork device by means of locking devices that are arranged on the second ends of said form ties and at least comprise a removable locking part; that it is allowed 
 to fill the space between the first and the second wall formwork device with concrete for casting the wall or similar; that after the casting, it is allowed 
 to remove the removable locking parts from the form ties; after which it is allowed 
 to remove the second wall formwork device comprising the sheathing or the sheathings, the first end of each form tie comprising a fastening element, which is fixedly or detachably connected with, or formed integrally with, the form tie and formed to have a principal extension that forms an angle, for instance essentially 90°, with the longitudinal extension of the form tie, and that the step of connecting the form tie with the first wall formwork device comprises to: 
 press down the fastening element into the material, for instance the foamed plastic, of the first wall formwork device, either into solid foamed plastic or the like, or into a slit or reception opening intended therefor in a plastic foam block. 
 
     
     
         5 . Procedure according to  claim 4 , characterized in that the building or plastic foam blocks are provided with projections and recesses, e.g., grooved and tongued or matched, and that the step of bringing together the building or plastic foam blocks comprises to:
 join the building or plastic foam blocks by means of tongue and groove joints formed of said projections and recesses.   
     
     
         6 . Procedure according to  claim 5 , characterized in that the step of joining the building or plastic foam blocks comprises to:
 join the building or plastic foam blocks in such a way that joints between the building or plastic foam blocks in a row or a column will be set in relation to joints between the building or plastic foam blocks in a neighbouring row or column in order to contribute to making the first wall formwork device stable.   
     
     
         7 . Procedure according to  claim 4 , characterized in that the step of mounting one or more sheathings comprises to:
 mount and lock the sheathings by the form ties and the clamp tie devices in such a way that joints between sheathings in one and the same plane in a row or a column are displaced in relation to joints between sheathings that are mounted in a neighbouring row or column in order to make the removable second wall formwork device stable.   
     
     
         8 . Procedure according to  claim 4 , characterized in that it comprises one or more of the steps of, after the mounting of the first wall formwork device, for instance stacking of building or plastic foam blocks and connection of the form ties with the first wall formwork device:
 providing recesses for windows and/or doors;   reinforcing the wall;   mounting electric, piping and possibly ventilation materials for the subsequent embedment.   
     
     
         9 . Procedure according to  claim 8 , characterized in that it comprises the steps of, after at least reinforcing,
 mounting the sheathing or the sheathings;   locking the sheathings by said locking devices.   
     
     
         10 . Procedure according to  claim 9 , characterized in that it comprises the step of, after the mounting of the sheathing or the sheathings:
 casting the wall by supplying concrete or the like into spaces between said first and second wall formwork devices.   
     
     
         11 . Procedure according to  claim 10 , characterized in that it comprises the steps of, after the casting step,
 disengaging locking parts included in the locking devices;   tearing the sheathing or the sheathings.   
     
     
         12 . Procedure according to  claim 4 , characterized in that it comprises the step of, before, in connection with, or after mounting and locking of the sheathing or the sheathings, but before the casting step:
 mounting a support for the wall during the casting step.   
     
     
         13 . Procedure according to  claim 12 , characterized in that the support is collapsible and adjustable, and that the step of mounting the support comprises to
 arrange the support, e.g., by transferring the support from a transportation and storage state to an operation state, adjacent to the second wall formwork device;   before and/or during casting, adjust the length of cross tie bars connected with a first leg device having first legs and in the second end with an abutment device, for instance comprising a second leg device, comprising second legs or the like, intended to at least partly directly or indirectly abut against an outside of the second wall formwork device so that the wall, if required, can be straightened and adjusted to form a desired, preferably right angle with a substratum or the like.   
     
     
         14 . Support, for sheathings and comprising a first leg device formed to be arranged essentially parallel to an essentially vertical wall device and a second leg device formed to be arranged separated from said first leg device, first and second tie bar devices formed to connect said first and second leg devices, and a platform formed to be supported by, and between, said first and second leg devices, according to  claim 12 , characterized in that said first tie bar device is articulately connected with said first and second leg devices at or near lower sections of the same, that said second tie bar device comprises a cross bar connection device articulately connected with said first leg device and articulately connected with said first tie bar device, that the platform and the first and second leg devices are provided with connection elements, which at least allow the platform to be displaced a certain small distance in relation to the width thereof, that the first leg device is provided with retention elements formed to be attachable to a wall device, and that the second cross bar connection device is adjustable, for instance can be extended and shortened, so that it can be adjusted before or during a casting operation of the wall device, and simultaneously form a support to the same, for instance contribute to hold it at a desired angle, for instance 90°, in relation to a flat horizontal surface such as a floor or the like. 
     
     
         15 . Support according to  claim 14 , characterized in that the second cross bar connection device comprises telescopic devices.