Page 23 of European Technical Approval ETA-11/0390, issued on 27.08.2012
English translation prepared by CSTB
of the European
Technical Approval
ETA -
11/0390
Injection System Hilti
HIT-CT 1 for rebar connection
Inject mortar into borehole
Forming air pockets shall be avoided.
Injection method for borehole depth ≤ 250 mm:
Inject the mortar from the back of the hole towards the
front and slowly withdraw the mixing nozzle step by step
after each trigger pull.
Fill holes approximately 2/3 full, or as required to ensure
that the annular gap between the rebar and the concrete
is completely filled with adhesive over the embedment
length.
After injecting, depressurize the dispenser by pressing
the release trigger. This will prevent further mortar
discharge from the mixing nozzle.
Injection method for borehole depth > 250 mm or overhead applications:
Assemble mixing nozzle, extension(s) and piston plug
HIT-SZ
(see Table 7
or Table 9).
For
combinations
of
several
injection
extensions
use
coupler HIT-VL K. A substitution of the injection extension
for a plastic hose or a combination of both is permitted.
Insert
piston
plug
to
back
of
the
hole.
Begin
injection
allowing
the
pressure of
the
injected
adhesive
mortar to
push the piston plug towards the front of the hole.
Fill holes approximately 2/3 full, or
as required to ensure
that the annular gap between the rebar and the concrete
is
completely
filled
with
adhesive
over
the
embedment
length.
After
injecting,
depressurize
the
dispenser
by
pressing
the
release
trigger.
This
will
prevent
further
mortar
discharge from the mixing nozzle.
For maximum embedment
depth, see Table 7
to
Table 9.
Annex 13
Installation instruction V
Mortar injection
Injection extension
HIT-VL
Piston Plug HIT-SZ
Piston plug
HIT-SZ
Injection extension
HIT-VL
