European technical approval
ETA-09/0295
English translation prepared by DIBt
Page 3 of 32 | 9 May
2013
Z38892.13
8.06.01-155/13
II
SPECIFIC CONDITIONS OF THE EUROPEAN TECHNICAL APPROVAL
1
Definition of productand intended use
1.1
Definition of the construction product
The subject of this approval is the post-installed connection, by anchoring or overlap connection
joint, of reinforcing bars (rebars) in existing structures made of normal weight concrete, using
the Hilti HIT-RE
500-SD injection mortar in accordance with the regulations for reinforced
concrete construction.
Reinforcing bars made of steel with a diameter d
s
from 8 to 40 mm according to Annex 4 or the
Hilti tension anchor HZA-R sizes M12, M16, M20 and M24 according to Annex 6 and Hilti
HIT-RE 500-SD injection mortar are used for Hilti rebar connections. The steel element is placed
into a drilled hole filled with injection mortar and is anchored via the bond between embedded
element, injection mortar and concrete.
1.2
Intended
use
The rebar connection may be used in normal weight concrete of a minimum grade of C12/15
and maximum grade C50/60 according to EN
206-1:2000. It may be used in non-carbonated
concrete with the allowable chloride content in concrete of 0.40% (CL
0.40) related to the
cement content according to EN 206-1.
Rebar connections with reinforcing bars and Hilti tension anchor HZA-R may be used for
predominantly static loads.
The fire resistance of post-installed rebar connections is not covered by this European technical
approval. Fatigue, dynamic or seismic loading of post-installed rebar connections are not
covered by this European technical approval.
Rebar connections may only be carried out in a manner, which is also possible with cast-in
straight reinforcing bars, e.g. those in the following applications (see Annex 2):
-
an overlap joint with existing reinforcement in a building component (Figures 1 and 2),
-
anchoring of the reinforcement at a slab or beam support, (e.g. according to Figure
3: end
support of a slab, designed simply supported, as well as an appropriate general reinforcement
for restraint forces),
-
anchoring of reinforcement of building components stressed primarily in compression
(Figure 4),
-
anchoring of reinforcement to cover the envelope line of tensile force in the bending member
(Figure 5).
The post-installed rebar connections may be used in the temperature range of -40 °C to +80 °C
(max short term temperature +80 °C and max long term temperature +50 °C).
This European technical approval covers anchoring in bore holes made with hammer drilling
hollow drilling, compressed air drilling or diamond (dry or wet) drilling technique. The post-
installed rebar connection may be installed in dry or wet concrete. It must not be installed in
flooded holes.
Rebar connections with the Hilti tension anchor HZA-R may be used for the transmission of
tensile forces in the direction of the bar axis only.
The transmission of shear forces has to be
ensured by appropriate measures. Examples for the application are given in Annex 3, Figures 6
to Figure 8.
