Part A: Installation procedure for all types
Installation using Rubber recess former
4. Installation with Steel recess former
1
To the formwork
2
From above into the fresh concrete
3. Removing the rubber recess former after the concrete is hardened
If installation is from above after casting the fresh concrete, the recess former
together with the pre-assembled HALFEN DEHA Spherical head anchor is
inserted at the specifi ed position by pushing and lightly rocking the recess
former until its top edge is fl ush with the concrete surface. Using formwork
lubricant, particularly in the inner of the recess former, is benefi cial when
stripping the formwork, and to improve the lifespan of the recess former.
In those cases where the precast unit
has to be lifted out of the mould
without having access to the recess
former, steel recess formers are used.
Two fi xing versions are available:
- for fastening with fi xing bolts
(steel or timber mould) and
- for magnetic fastening to steel
moulds, where holes cannot
be
drilled.
If this type of former is used to positi-
on the anchor horizontally within the
formwork, provisions should be taken
to prevent the anchor from becoming
dislodged when pouring the concrete
(e.g. by fi xing it to the reinforcement
or securing it with spacers).
After removing the mould the rubber
grommet
is separated from the
cast-in HALFEN DEHA lifting anchor.
4.1
Recess former plus spherical
head transport anchor after
installation, ready for
concreting.
4.2
Lifting the precast element
from the mould.
See also instructions
KKT-A
for the recess formers!
Fixing components
Formwork
Recess former
Spherical head lifting anchor
Fresh concrete
2.1
3.1
3.2
3.3
3.3
2.2
2.3
Rubber grommet
4.1
4.2
Auxiliary tool, i.e. reinforcement bar
2
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HALFEN KKT-E
Assembly Instructions
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