Page 19 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
Safety Regulations:
Review the Material Safety Data Sheet (MSDS) before use
for proper and safe handling!
Wear well-fitting protective goggles and protective gloves
when working with Hilti HIT-CT 1.
Important: Observe the Instructions for Use provided with
each foil pack.
Drill hole
Note: Before drilling, remove Carbonized Concrete; Clean
contact areas (see section 4.3.2.7 in ETA)
Drill hole
to the required embedment depth using a
hammer-drill with carbide drill bit set in rotation
hammer mode, a compressed air drill.
a) Hammer drill (HD)
b) Compressed air drill (CA)
(
see Table 7)
(
see Table 9)
or drill hole to the required embedment depth with an
appropriately sized Hilti TE-CD or TE-YD hollow drill
bit (HDB) (see Table 8) with Hilti vacuum attachment.
This drilling method properly cleans the borehole and
removes dust while drilling.
After drilling is complete,
proceed to the “Rebar preparation and foil pack
preparation” step in the instructions for use.
Splicing applications:
Measure and control concrete cover c
c
drill
= c + d
s
/2
Drill parallel to surface edge and to existing rebar
Where applicable use Hilti drilling aid HIT-BH.
Drilling aid
Example: HIT-BH
For holes
b
> 20 cm use drilling aid (see Table 3).
Three different options can be considered:
A) Hilti drilling aid HIT-BH
B) Slat or spirit level
C) Visual check
Annex 9
Installation instruction I
Drill hole
1)
2)
drill
v
,
e,ges.
