Hilti Malaysia - HIT Injection System
Hilti Malaysia - HIT Injection System
Hilti Malaysia - HIT Injection System
SYSTEM FOR
REBAR
APPLICATIONS
• Hilti HIT-RE 500 V3
• Hilti HIT-RE 100
• Hilti HIT-HY 200
CONTENTS
3. Approvals and reports for Hilti HIT-RE 500 V3, HIT-RE 100 and HIT-HY 200 05
5. Differences of Hilti HIT-RE 500 V3, HIT-RE 100 and HIT-HY 200 08
Hilti HIT Rebar Design Method Better results through more detailed Frame node connections with straight
research bars
According to structural concrete Research has shown that the bond According to standard reinforcement
building codes, the bond strength of strength of bars anchored with Hilti design concepts, bends are required
cast-in bars is limited, even where adhesive mortars is higher than at moment-resisting connections.
depth of concrete cover is considerable. that of cast-in-place bars, provided
there is adequate concrete cover1. Working together with the Technical
Accordingly, in some zones such University of Munich and the American
as in walls where anchorage depth The Hilti HIT Rebar Design Method University of Beirut, Hilti has carried
is often limited, welded transverse takes advantage of this increased out theoretical and laboratory
reinforcement or hooks are used bond strength in order to achieve research in order to propose an
to compensate for the reduction anchorage length reductions adequate strut-and-tie model that
in available anchorage depth. of up to 50% compared to the takes the specific characteristics
figures given in building codes. of frame node connections with
The Hilti Rebar Design Method also straight bars2 into account.
makes it possible to reduce anchorage
length while maintaining the high bond
strength needed to replace hooks or
welded transverse reinforcement.
Bond strength [N/mm2]
RE 500 V3
RE 500 SD
RE 500
Scope
Non-cracked Cracked Cracked
concrete concrete concrete
Seismic C1 Seismic C1/C2
Safe Set SafeSet/On-site
testing
Diamond coring
Reduced temp.
sensitivity
Reduced curing
time
Increased bond
strength
Where a connection is made Thanks to many years of research, Bond strength depends on concrete
between concrete members under Hilti is also in an excellent position to cover. Where cover is limited, splitting
predominant tension, the principles of provide solutions for post-installed is the controlling factor and the
anchor design should be applied3. shear interface reinforcement4 for red and grey lines therefore show
concrete overlays or post-installed more or less linear functions.
As a specialist in anchoring to punching shear reinforcement5.
concrete, Hilti is well qualified to Where cover is sufficient, pull-out
provide the appropriate solutions. begins to become the controlling
Factors such as the possibility of factor. With Hilti adhesives, the
concrete cone breakout must be cover limit is usually higher than
given special consideration. that specified for cast-in in concrete
building codes (fbd=bond strength,
c=cover, Ø=bar diameter).
Dr. Jakob Kunz is Scientific Consultant for the Hilti Anchor Business Unit. He gained
his doctorate at the ETH (Swiss Federal Institute of Technology) in Zurich and Lausanne
and has been with Hilti as a research engineer, project manager and chief scientific
officer since 1989. Dr. Jakob Kunz specializes in the fields of fastening technology and post-installed cast-in
reinforced concrete design. He is a member of fib, IABSE, ACI and SIA 179
Strut-and-tie modeling of frame node
connections for straight (post-installed) and
bent (standard cast-in) bars.
References
1) Kunz, J., Muenger F.: Splitting and Bond Failure of Post-Installed Rebar Splices and Anchorings. Bond in Concrete. fib,
Budapest, 20 to 22 November 2002.
2) Hamad, B.S., Al-Hammoud, R., Kunz, J.: Evaluation of Bond Strength of Bonded-In or Post-Installed Reinforcement. ACI
Structural Journal, V. 103, No. 2, March–April 2006.
3) Design of Bonded Anchors. EOTA Technical Report TR 029. European Organisation for Technical Approvals, June 2007.
4) Randk, N.: Untersuchungen zur Kräfteübertragung zwischen Alt- und Neubeton bei unterschiedlicher Fugenrauhigkeit.
University of Innsbruck, Austria, 1997 (Thesis in German).
5) Fernandez Ruiz, M., Muttoni, A., Kunz, J.: Strengthening of Flat Slabs Against Punching Shear Using Post-Installed Shear
Reinforcement. ACI Structural Journal, V. 107, No. 4, July–August 2010.
Conclusion
Be aware that steel yield under fire is reduced considerably, and safety factors for fire
design are reduced accordingly as specified in the code.
Note that the fire design tables must not be used for cold design (accepted bond
stress under fire may be above the values acceptable for safe cold design).
a) The maximum load for each individual fire design is performed by the engineer.
The designer determines his individual load depending on the load situation and
individual safety factor combination used.
With this load value he can determine the anchorage length by means of the Hilti fire
design tables.
b) It does not mean that the adhesives withstands the same temperatures as the steel
does, but the tables specify cover and anchorage length that are necessary to withstand
for the same duration the same force as is expected from the steel.
c) It is evident that for simplification the maximum load can be used on the safe side to
determine anchorage length, but maybe steel holds not the same force under fire in the
new building member e.g. with less cover.
Therefore if shorter embedment is requested it is worth to calculate the correct design
load for fire.
That is especially true if higher safety factors or global safety factors for cold design are
used (than there is more reserve in the steel).
Previously European Technical Approval is a document that provides information on the assessment
of the performance of product regarding its essential characteristics according to the new
Construction Products Regulation (EU/305/2011).
CE Marking – CE Conformity for Hilti HIT-RE 500 V3, HIT-RE 100 and HIT-HY 200
NSF Certification – Hilti HIT-RE 500 V3, HIT-RE 100 and HIT-HY 200 are certified for water treatment
application
LEED Certification – Hilti HIT-RE 500 V3, HIT-RE 100 and HIT-HY 200 are qualified for LEED
specification on VOC emission and VOC content
As you regulate the desired amount of mortar dispensed with each pull
of trigger, you save time during installation, reduce your cost per rebar
installed and minimize the risks associated with improper installation,
especially with our cordless battery HDE 500-A22 dispenser.
HIT-RE-M Mixer
• For HIT-RE 500 V3 all sizes
Mixer
RE 500 V3 330ml RE 500 V3 500ml RE 100 500ml HY 200 500ml HY 200 330ml
Cartridge Holder
2013
Weight battery B 22/5.2 Li-Ion 780g
Weight battery B 22/2.6 Li-Ion 480g
Performance
Productivity
Reliability
Proven performance.
ETA assessment ETA-16/0143 ETA-15/0883 ETA 11/0493
ETA-16/0142 ETA-15/0882 ETA 12/0006
ETA 11/0492
Best product for rebar Day-to-day rebar and Best product for anchor
Recommended
applications anchoring applications applications
application
Anchor applications Rebar applications
Rebar design Rebar designed to yield Rebar designed at Rebar design for fast cure
at reduced embedment minimum embedment solution with minimum
depth depth embedment depth.
Drilling method
Base material
condition
How do we take the best and make it even better? By listening to you!
Fifteen years ago, Hilti set legendary standards for designers and contractors alike
with HIT-RE 500. And because you needed increased performance and maximum
reliability for dynamic loading applications, Hilti introduced HIT-RE 500 SD in 2007.
The new Hilti HIT-RE 500 V3 delivers the ultimate in performance for nearly
all applications while addressing challenging project requirements such
as boundary conditions, design flexibility and tight project deadlines. And,
when used in conjunction with SafeSet technology, HIT-RE 500 V3 keeps
your project moving by eliminating installation errors almost entirely.
• All structural post-installed The long service life of HIT-RE 500 V3 delivers Post-installed rebar
rebar applications, e.g. facilities makes it difficult highest bond strength values connections loaded with
starter bars, beam to to anticipate future under nearly all conditions. a bending moment are
column connections, wall requirements. Therefore, However, according to EC2, typically solved with cast-in
extensions, etc. designed products specified the design bond strength is bent rebars according to
according to Eurocode 2 should carry the widest limited to the performance EC2/TR023. And, because
(EC2) range of conditions and of cast-in bars. Research designers asked for a
• Diamond cored holes resistance values. has shown that the bond reliable solution using post-
• Dust free installation e.g. strength of post-installed installed straight bars, we
hospitals HIT-RE 500 V3 is approved bars anchored with HIT-RE worked to make it a reality.
• Suitable for dry, wet for static, quasistatic, 500 V3 is markedly higher Together with the Technical
concrete seismic and fatigue loading than that of cast-in place. University of Munich and
• Static, quasi static, fatigue and also covers fire. The Hilti HIT Rebar design the American University
Method follows the EC2 of Beirut, Hilti developed
Advantages design steps. By using an an adequate strut and tie
increased bond strength, model that takes the specific
• Up to 70% reduction of anchorage lengths and characteristics of frame node
design anchorage lengths costs are reduced signifi connections with straight
as compared to cast-in Seismic loading Fire loading cantly. Discover why 35% bars into account. The Hilti
rebars of Hilti customers trust the HIT Rebar design Method
• Increased application HIT Rebar design Method - published in several national
range, from splices via simply contact one of our and international scientific
simply supported beams field engineers to learn more. journals, is highly recognized
up to moment resisting by the designer community.
connections
• Support your project V
• Speed up project
processes by overlapping
design and construction
phases
Hilti developed the fastest Every project is site specific Hilti Hollow Drill Bit (HDB) The roughening tool (RT)
slow cure on the market with as execution is influenced takes hole cleaning prepares the diamond
HIT-RE 500 V3. Contractors by several conditions. out of the equation to cored holes to achieve
can now finish installations in Poor execution can lead to ensure maximum loads resistance values and
half the time as compared to structural deflection and in all hammer drilling (HD) performance equal to
other leading mortars, thanks extensive rehabilitation applications and virtually hammer drilled boreholes.
to its accelerated curing effort and re-design. dust-free environments.
time and working time. And,
because HIT-RE 500 V3 is The Hilti HIT-RE 500
the only mortar that can cure V3 injection system
down to -5°C, construction supports your project
processes can begin earlier. risk mitigation strategy
by incorporating several
measures from SafeSet
technology in addition to
on-site testing to reduce
the risk of human error.
Bond strength, fbd [N/mm2]
Bond strength, fbd [N/mm2]
with roughening
with Hollow Drill Bit or
tool and proper hole
proper hole cleaning
cleaning
Chemical bond based on Fbd,po [N/mm²] 9.51 9.51 9.51 9.51 8.83 8.83 5.37
ETA approval
Design Yield Nrd [kN] 34.4 49.5 88.1 137.6 215.0 352.3 550.5
Length to develop yield Ib [mm] 115 138 184 230 310 397 815
Embedment depth Design loads in [kN/bar]
80 [mm]
100 [mm] 29.9
120 [mm] 34.4 43.0
140 [mm] 34.4 49.5
Loads in [kN/bar] for ruling values steel, bond and concrete
Note:
Data and results must be checked for agreement with the actual existing conditions and for plausibility.
The calculation shown are proposals only and should be finally checked and approved by architect or engineer responsible for the project.
Chemical bond based on Fbd,po [N/mm²] 9.65 9.65 9.65 9.65 8.96 8.96 5.46
ETA approval
Design Yield Nrd [kN] 34.4 49.5 88.1 137.6 215.0 352.3 550.5
Length to develop yield Ib [mm] 113 136 182 227 305 391 803
Embedment depth Design loads in [kN/bar]
80 [mm]
100 [mm] 30.3
120 [mm] 34.4 43.7
140 [mm] 34.4 49.5
Loads in [kN/bar] for ruling values steel, bond and concrete
Note:
Data and results must be checked for agreement with the actual existing conditions and for plausibility.
The calculation shown are proposals only and should be finally checked and approved by architect or engineer responsible for the project.
Chemical bond based on Fbd,po [N/mm2] 6.67 6.67 5.71 5.71 5.24 5.24
ETA approval
Design Yield Nrd [kN] 34.4 49.5 88.1 137.6 215.0 352.3
Length to develop yield Ib [mm] 164 197 307 383 523 669
Note:
Data and results must be checked for agreement with the actual existing conditions and for plausibility.
The calculation shown are proposals only and should be finally checked and approved by architect or engineer responsible for the project.
Approvals / certificates
Description Authority / Laboratory No. / date of issue
ETA-12/0083 / 2013-06-05
a) (HIT-HY 200-R)
European technical approval DIBt, Berlin ETA-11/0492 / 2013-06-05
(HIT-HY 200-A)
Fire test report CSTB, Paris 26033756
a) All data given in this section according ETA-12/0083, issued 2013-06-05 and ETA-11/0492,
issued 2013-06-05.
Properties of reinforcement
Product form Bars and de-coiled rods
Class B C
Characteristic yield strength f yk or f0,2k (MPa) 400 to 600
1,15
Minimum value of k = (ft/fy)k 1,08
< 1,35
Characteristic strain at maximum force, Huk (%) 5,0 7,5
Bendability Bend / Rebend test
Maximum deviation from Nominal bar size (mm)
nominal mass 8 ± 6,0
(individual bar) (%) >8 ± 4,5
Bond: Nominal bar size (mm)
Minimum relative rib area, 8 to 12 0,040
fR,min > 12 0,056
Setting details
For detailed information on installation see instruction for use given with the package of the product.
Bore hole cleaning Just before setting an anchor, the bore hole must be free of dust and debris by one of two
cleaning methods described below
b) Compressed air cleaning (CAC)
For all bore hole diameters d0 and all bore hole depth h0
Blowing 2 times from the back of the hole with oil-free compressed air
(min. 6 bar at 100 litres per minute (LPM)) until return air stream is free of
noticeable dust. Bore hole diameter 32 mm the compressor must supply
a minimum air flow of 140 m³/hour.
If required use additional accessories and extensions for air nozzle and
brush to reach back of hole.
Blowing 2 times again with compressed air until return air stream is free of
noticeable dust.
4 strokes with Hilti blow-out pump from the back of the hole until return air
stream is free of noticeable dust.
4 strokes with Hilti blow-out pump from the back of the hole until return air
stream is free of noticeable dust.
Injection preparation
Observe the Instruction for Use of the dispenser.
Observe the Instruction for Use of the mortar.
Tightly attach Hilti HIT-RE-M mixing nozzle to foil pack manifold.
Insert foil pack into foil pack holder and swing holder into the dispenser.
After installing the rebar the annular gap must be completely filled with
mortar.
Proper installation can be verified when:
Desired anchoring embedment is reached Av:
Embedment mark at concrete surface.
Excess mortar flows out of the borehole after the rebar has been fully
inserted until the embedment mark.
Overhead application: Support the rebar and secure it from falling till
mortar started to harden.
Observe the working time “twork”, which varies according to temperature of
base material. Minor adjustments to the rebar position may be performed
during the working time. After tcure preparation work may continue.
For detailed information on installation see instruction for use given with the package of the product.
+ resistant
o resistant in short term (max. 48h) contact
- not resistant
Electrical Conductivity
9
HIT-HY 200 in the hardened state is not conductive electrically. Its electric resistivity is 15,5 10 cm
(DIN IEC 93 – 12.93). It is adapted well to realize electrically insulating anchorings (ex: railway applications,
subway).
Concrete class
Rebar (mm)
C12/15 C16/20 C20/25 C25/30 C30/37 C35/45 C40/50 C45/55 C50/60
8 - 32 1,6 2,0 2,3 2,7 3,0 3,4 3,7 4,0 4,3
Chemical bond based on Fbd,po [mm] 6.7 6.7 6.7 6.7 6.7 6.7
ETA approval
Length to develop yield Ib [mm] 164.3 197.1 262.9 328.6 410.7 525.7
Embedment depth Design loads in [kN/bar]
80 [mm]
Note:
Data and results must be checked for agreement with the actual existing conditions and for plausibility.
The calculation shown are proposals only and should be finally checked and approved by architect or engineer responsible for the project.
Chemical bond based on Fbd,po [mm] 6.7 6.7 6.7 6.7 6.7 6.7
ETA approval
Length to develop yield Ib [mm] 164.3 197.1 262.9 328.6 410.7 525.7
Embedment depth Design loads in [kN/bar]
80 [mm]
Note:
Data and results must be checked for agreement with the actual existing conditions and for plausibility.
The calculation shown are proposals only and should be finally checked and approved by architect or engineer responsible for the project.
The task is further simplified by PROFIS Rebar 2.0, a software tool developed by Hilti that lets users design rebar connections
according to the Hilti HIT Rebar Design Method or in accordance with the latest Eurocode guidelines.
PROFIS Rebar 2.0 optimizes the solution provided by taking all aspects of the latest Hilti adhesive mortars and techniques into
account. This cuts installation cost dramatically. In certain situations, embedment depth can be reduced by as much as 50%,
resulting in a large saving in drilling and adhesive mortar cost. The Hilti HIT Rebar Design Method thus makes much more efficient
use of the products employed and optimizes overall cost all the way from the specification stage to the final installation.
User training
By providing special training, Hilti ensures that rebar installation personnel know how to use the HIT system in accordance with
the proper procedures so that post-installed rebar connections can be made correctly.
Pull-out tests
Hilti offers the possibility of carrying out on-site rebar pull-out tests to validate expected loads.
Rebar analysis
The Hilti Ferroscan System provides information about existing reinforcement by determining its position, diameter and depth of
coverage without the need for destructive procedures such as removal of concrete. Hilti PROFIS Ferroscan software simplifies
the job of analyzing the data obtained.
Injection without creation of air pockets and bubbles is possible only when it’s done from the bottom of the hole and when mixer
extensions and “piston” plugs are used. Air bubbles may cause pressure to build up when the rebar is inserted into the adhesive.
This pressure can become so high that the adhesive is squirted out of the hole towards the worker, causing a hazard. Air can also
inhibit proper curing of the adhesive and, last but not least, the presence of air impedes bonding, reducing the effective bonding
length.
d) The acceptance tests don’t include fire or fatigue loads. Can loads of this kind be taken up by post-installed reinforcement?
It’s true that the adhesive forms a layer between the concrete and rebar, which may result in cast-in-place and post-installed rebar
connections having significantly different characteristics under such conditions. Hilti has performed specific research on these
loading conditions and can provide corresponding design recommendations.
h) How can concrete members under tension be connected using post-installed rebars?
Reinforcement in such members is usually hooked back by bending it around the perpendicular reinforcement in the base member
which, again, isn’t possible with post-installed reinforcement. As a highly experienced specialist in the field of anchoring to
concrete, Hilti is well qualified to provide recommendations on how these principles should be used to connect such members.
It should be noted that due to the possibility of concrete cone breakout failure, the design of connections of this kind must take
brittle failure mode into account as it is done in Hilti PROFIS Rebar 2.0
Our qualified and experienced account managers, design engineers and customer service representatives are at your
service. Anytime.
For more information, please call us.
Tun Razak Exchange, Kuala Lumpur Light Rail Transit Extension, Kuala Lumpur Petronas RAPID project, Pengerang, Johor
KL Pavilion, Kuala Lumpur Mid Valley - The Gardens, Kuala Lumpur Nu Sentral, Kuala Lumpur
Government Headquaters, Putrajaya KL Convention Centre, Kuala Lumpur Queensbay Mall, Penang