Working with elements: preparation - BIM

  • Building Information Model (BIM)

    When delivering Silka elements, Xella uses the Building Information Model (BIM), a digital model in which you and Xella digitally exchange project information. The BIM process works roughly as follows:

    • The contractor develops his own 'wall model' that is based on models supplied by the architect and constructor. This wall model contains all the information needed by Xella, such as the type of sand-lime brick, whether they are glue elements or chamfer blocks, and the pressure strength. The necessary clearances and tolerances are Also directly incorporated in the model.
    • The 'wall model' is exchanged via the open-file format IFC with the Xella draughtsman or designer, who thus immediately has the right dimensioning and information specifications.
    • The Silka elements can then be imported into the model. This also applies to the lintels, which Xella receives via Vebo.
    • The supplier then makes an export (IFC) of this model, which is checked by the contractor for quality and geometry (the so-called clash control).
    • ​If everything is in order, wall booklets can easily be put together for the implementation phase. Based on the outcomes, Xella supplies the Silka wall elements at the construction site. 
  • Equipment and tools

    • A mechanical or hydraulic mounting machine for each installation team. There are different types of these on the market.
    • Approved clamping pliers for mounting the wall elements with the mounting machine.
    • An element gripper with drop-out protection (upper clamp) for transferring the elements from the unloading point to the processing location.
    • Universal clamp pliers for fitting adapters with the mounting machine.
    • A Silka thin joint mortar, adjusted to the thickness of the elements to be used. An even spread and correct layer thickness of the glue mortar for the bed joints is only possible through use of this glue mortar box.
    • A Silka thin mortar scoop, adjusted to the thickness of the elements to be applied, which adhesive mortar is evenly applied to the 'butt joint surfaces' of the element.
    • A putty knife for cutting off the glue.
    • A pallet hook for adjusting the pallets with fitting pieces.
    • The right type of hand mixer or a special bucket mixer for mixing the adhesive mortar.


    The contractor provides:

    • A hand or bucket mixer
    • Small (bricklaying) tools
    • A construction crane for transferring the material and moving the mounting machine
    • Scaffolding support, a pallet hook, and similar
    • A flattened unloading area
    • Scaffolding parts or other material for placement under whole elements (to protect against rising moisture)

Want to know more?

Do you have questions about the possibilities or the processing of Silka elements? We are happy to tell you more about this and other building solutions from Xella.

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