This method describes how to create a neat construction joint using a magnetic strip.
To make the method shown in this document easier to understand, the insertion of GBE spacers used with formwork systems incorporating tie rods, as well as the external connector / internal connector assemblies, has intentionally been omitted from the explanatory diagrams.
This method must be adapted as necessary to comply with the installation recommendations, particularly the safety requirements, specified by the suppliers of the equipment and materials used to construct a GBE wall.
Phase 1:
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Cast the first lift using a magnetic recess strip — shown in blue in the diagram below — to define the position and appearance of the future construction joint.
Phase 2:
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Set up the formwork and cast the second lift.
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The fresh concrete fills the recessed groove previously created by the magnetic strip.
Phase 3:
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Strip the formwork from the second lift.
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The construction joint is clearly defined at the required location.