CRH Leviat HALFEN HEK3 Instrucciones De Montaje página 7

HALFEN HEK3
Joint design — sealing the HEK3 installation recesses
To ensure reliable load transfer,
any gap under the contact surface
of the HEK3 must be completely
shimmed with the appropriate
slotted shims (see page 10).
Depending on the requirements for
thermal insulation, fire protection
and water and air tightness, use
suitable filling materials and
sealants in accordance with the
manufacturer's instructions to close
the remaining joint.
*DAfStB: German Committee
for Structural Concrete
Recess fi llers in concrete for HEK3
Reusable polyurethane moulds are
available to make recess fi llers in the
precast plant using concrete from the
same pour as the concrete element.
The recess fillers mould can be used
from both sides. Depending on the
desired surface finish, this can be
smooth or made to match the surface
of the concrete element.
The moulds can be used
individually or ...
... multiple moulds
can be fixed to an
auxillary aid with
M10 Bolts to make
a larger number of
recess fillers more
efficiently.
© 2024 · INST_HEK 04/23 · www.halfen.com
After correct installation, the recess
with all parts of the HEK3 Precast
coupler must be completely sealed
using grout in accordance with
the DAfStb* guideline `Production
and use of cement-bound grout
concrete and grout´.
We recommend using precast
HEK3 Recess fillers if an aesthetic
finish of the precast elements
(fair-face concrete) is a priority
or if easy disassembly of the
elements is specified.
Fill material (concrete)
Mould
Formwork base
Recess moulds
auxilary aid (Timber)
For permanent connections
1
Ensure the
recess is completely
filled with mortar
2
Press the recess
filler into the hole
and remove surplus
mortar
For non-permanent connections.
150
Disassembling the concrete
122
elements
1
Ensure mortar is
150
only applied to
the front edges
of the recess!
2
Press the recess
filler into the hole
Mould
and remove surplus
mortar
3
Use a suitable tool
to break the filler to
gain access to the
bolt connection
M10 Bolts
Assembly Instructions
7