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Anchoring of multilayer wall constructions

Allgemeine Bauartgenehmigung
General Building Inspection Approval Certificate No. Z-21.3-1967

RUBERSTEIN® Spiral Anchor
Anchoring of multilayer wall constructions

Wet/wet procedure

Similar to needling

Very appropriate for multilayer wall constructions without air layer

For walls with air layer, use of perforated sleeves or drill grouting in two steps:

  1. Make a bore into facing layer and load bearing layer

  2. Blow out the bore, moisten with water, cut spiral anchor to length, prepare anchor grout

  3. Press the anchor grout into the load-bearing layer bore

  4. Turn in the spiral anchor straight into the fresh grout

  5. Press anchor grout into the bore and the spiral anchor of the facing layer

  6. Close the wall surface with anchor grout, joint mortar or stone restoration mortar

Dry/wet procedure

Core drilling in the facing/visible layer, if necessary pre-drilling in the load-bearing layer

Particularly appropriate for two-layer wall constructions with air layer and relatively soft, homogeneous structure of the load-bearing layer

Also appropriate for rear anchors in wooden constructions

  1. Bore in facing layer, if necessary pre-drill in load-bearing layer

  2. Blow out the bore/s

  3. Insert the spiral anchors with appropriate setting tool in dry condition into the brick backing

  4. Prepare anchor grout

  5. Press anchor grout into the bore and spiral anchor of the facing layer

  6. Close the wall surface with anchor grout, joint mortar or stone restoration mortar

Dry procedure

Dry installation of spiral anchors over the entire wall section, if necessary pre-drilling depending on wall material

  1. If necessary, pre-drill the masonry and blow out the bore

  2. Insert the spiral anchors with appropriate setting tool in dry condition into the masonry

  3. Close the wall surface with joint mortar or stone restoration mortar