Hilti HIT-RE 100 User Manual

Hilti HIT-RE 100 mortar w/
rebar (as post-installed conn.)

04 / 2016 2

Injection mortar system

Benefits

Hilti
HIT-RE 100
330 ml foil pack

(also available
as 500 ml
and 1400 ml
foil pack)

- suitable for concrete C 12/15 to
C 50/60

- high loading capacity

- suitable for dry and water
saturated concrete

- for rebar diameters up to 40 mm

- non corrosive to rebar elements

- long working time at elevated
temperatures

- suitable for embedment length till
3200 mm

Statik mixer

Rebar

Base material

Load conditions

Concrete

Dry concrete

Wet concrete

Static/

quasi-static

Installation conditions

Other informations

Hammer

drilling

Diamond

coring

Compressed air

drilling

European

Technical

Approval

CE

conformity

Corrosion

tested

Description

Authority / Laboratory

No. / date of issue

European technical assessment

DIBt

ETA – 15/0883 / 2016-04-21

Hilti HIT-RE 100 mortar with rebar
(as post-installed connection)

Service temperature range

Temperature range: -40°C to +80°C (max. long term temperature +50°C, max. short term temperature +80°C).

Approvals / certificates

a)

All data given in this section according to the approvals mentioned above ETA-15/0883 issue 2016-04-21

Hilti HIT-RE 100 mortar w/

rebar (as post-installed conn.)

04 / 2016 3

Properties of reinforcement

Product form

Bars and de-coiled rods

Class

B

C

Characteristic yield strength fyk or f

0,2k

(MPa)

400 to 600

Minimum value of k = (ft/fy)k

≥ 1,08

≥ 1,15

< 1,35

Characteristic strain at maximum force, uk (%)

≥ 5,0

≥ 7,5

Bendability

Bend / Rebend test

Maximum deviation from
nominal mass
(individual bar) (%)

Nominal bar size (mm)
≤ 8
> 8

± 6,0
± 4,5

Bond:
Minimum relative rib area,
f

R,min

Nominal bar size (mm)
8 to 12
> 12

0,040
0,056

For detailed information on installation see instruction for use given with the package of the product.

Curing time for general conditions1)

Data according ETA-15/0883, issue xxx

Temperature

of the

base material

Working time in which

rebar can be inserted and

adjusted t

gel

Initial curing time

t

cure,ini

Curing time before rebar

can be fully loaded t

cure

5 °C  TBM ≤ 9 °C

2 h

18 h

72 h

9 °C < TBM ≤ 14 °C

1,5 h

12 h

48 h

15 °C < TBM ≤ 19 °C

30 min

8 h

24 h

20 °C < TBM ≤ 24 °C

25 min

6 h

12 h

25 °C  TBM ≤ 29 °C

20 min

5 h

10 h

30 °C  TBM  39 °C

12 min

4 h

8 h

TBM = 40 °C

12 min

2 h

4 h

Materials

Reinforcmenent bars according to EC2 Annex C Table C.1 and C.2N.

Setting details

1)

The curing time data are valid for dry base material only. In wet base material the curing times must be doubled.

The temperature of the foil pack must be between +5° C and + 40° C during use.

Hilti HIT-RE 100 mortar w/
rebar (as post-installed conn.)

04 / 2016 4

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-RE 100.
Important: Observe the installation instruction of the manufacturer
provided with each foil pack.

Drilling

Note: Before drilling, remove carbonized concrete; clean contact
areas (see Annex B1)
In case of aborted drill hole the drill hole shall be filled with mortar.

Drill the hole to the required embedment depth using a hammer-drill
with carbid drill bit set in rotation hammer mode, a compressed air
drill or a diamond core machine.

Hammer drill (HD)

Compressed air drill
(CA)

Diamond core wet
(DD) and dry (PCC)

Spacing applications

 Measure and control concrete cover
 c

drill

= c + d0/2

 Drill parallel to edge and to existing rebar
 Where applicable use Hilti drilling aid HIT-HB

Drilling aid

Fore holes lv > 20 cm use drilling aid

Ensure that the drill hole is parallel to the existing rebar.
Three different options can be considered:

 Hilti drilling aid HIT-BH
 Lath or spirit level
 Visual check

Setting instruction

Hilti HIT-RE 100 mortar w/

rebar (as post-installed conn.)

04 / 2016 5

Drill hole cleaning

The drill hole must be free of dust, debris, water, ice, oil, grease and other
contaminants prior to mortar injection.

Just before setting the bar, the drill hole must be free of dust and debris
by one of two cleaning methods described below.
Inadequate hole cleaning = poor load values.

Manual Cleaning (MC) For drill hole diameters d0 ≤ 20mm and drill hole depths h0 ≤ 10·d.

Blow at least 4 times from the back of the drill hole until return air
stream is free of noticeable dust.

Brush 4 times with the specified brush by inserting the steel brush
Hilti HIT-RB to the back of the hole (if needed with extension) in a
twisting motion and removing it.
The brush shall produce natural resistance as it enters the drill hole
(brush Ø ≥ drill hole Ø) - If this is not the case, please use a new
brush or a brush with a larger diameter.

Blow at least 4 times from the back of the drill hole until return air
stream is free of noticeable dust.

Compressed air cleaning (CAC) For all drill hole diameters d0 and all drill hole depths h0 ≤ 20· d

Blow 2 times from the back of the hole (if needed with nozzle
extension) over the whole length with oil-free compressed air (min. 6
bar at 6 m³/h) until return air stream is free of noticeable dust.

Brush 2 times with the specified brush by inserting the steel brush
Hilti HIT-RB to the back of the hole (if needed with extension) in a
twisting motion and removing it.

The brush shall produce natural resistance as it enters the drill hole
(brush Ø ≥ drill hole Ø) - If this is not the case, please use a new
brush or a brush with a larger diameter.

Blow 2 times again with compressed air until return air stream is free
of noticeable dust.

If required use additional accessories and extensions for air nozzle
and brush to reach back of hole.

Compressed air cleaning (CAC) For all drill holes deeper than 250 mm (for ϕ 8 to ϕ 12) or deeper than 20·ϕ
(for ϕ > 12 mm)

Use the appropriate air nozzle Hilti HIT-DL.
Blow two times from the back of the hole over the hole length with oil-

free compressed air until return air stream is free of noticeable dust.
Safety tip:
Do not inhale concrete dust.
Use of the dust collector Hilti HIT-DRS is recommended.

Hilti HIT-RE 100 mortar w/
rebar (as post-installed conn.)

04 / 2016 6

Screw the round steel brush HIT-RB in one end of the brush
extension HIT-RBS, so that the overall length of the brush is
sufficient to reach the base of the drill hole. Attach the other end of
the extension to the TE-C/TE-Y chuck.

Safety tip:
Start machine brushing operation slowly
Start brushing operation once the brush is inserted in the borehole.

Use the appropriate air nozzle Hilti HIT-DL.
Blow two times from back of the hole over the hole length with oil-

free compressed air until return air stream is free of noticeable dust.
Safety tip:
Do not inhale the concrete dust.
Use of the dust collector Hilti HIT-DRS is recommended.

In addition for wet diamond corind (DD) For all drill hole diameters d0 and all drill hole depths h0

Flush 2 times by inserting a water hose (water-line-pressure) to the
back of the hole until water runs clear.

Brush 2 times with the specified brush by inserting the steel brush
Hilti HIT-RB to the back of the hole (if needed with extension) in a
twisting motion and removing it.

The brush must produce natural resistance as it enters the drill hole
(brush Ø ≥ drill hole Ø). If this is not the case, please use a new
brush or a brush with a larger diameter.

Flush 2 times by inserting a water hose (water-line pressure) to the
back of the hole until water runs clear.

Rebar preparation

Before use, make sure the rebar is dry and free of oil or other
residue.

Mark the embedment depth on the rebar. (e.g. with tapte) , v
Insert rebar in borehole, to verify hole and setting depth v.

Hilti HIT-RE 100 mortar w/

rebar (as post-installed conn.)

04 / 2016 7

Injection preparation

Tightly attach Hilti mixing nozzle HIT-RE-M to foil pack manifold. Do not
modify the nixing nozzle.
Observe the instruction for use of the dispenser.
Check foil pack holder for proper function. Insert foil pack into foil pack
holder and put holder into dispenser.

The foil pack opens automatically as dispensing is initiated. Depending
on the size of the foil pack an initial amount of adhesive has to be
discarded.
After changing a mixing nozzle, the first few trigger pulls must be
discarded as decribed above. For each new foil pack a new mixing
nozzle must be used.
Discard quantities are
3 strokes for 330 ml foil pack,
4 strokes for 500 ml foil pack,
65 ml for 1400 ml foil pack.

Inject adhesive

Inject adhesive form the back of the drill hole without forming air voids.

Injection method for drill hole depth ≤ 250 mm (without overhead applications)

Inject the adhesive 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 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.

Hilti HIT-RE 100 mortar w/
rebar (as post-installed conn.)

04 / 2016 8

Injection method for drill hole depth > 250 mm or overhead application

Assemble mixing nozzle HIT-RE-M, extension(s) and piston plug
HIT-SZ.
For combinations of several injection extansions use coupler HIT-VL
K. A substitution of the injection extansion for a plastic hose or a
combination of both is permitted.
The combination of HIT-SZ piston plug with HIT-VL 16 pipe and then
HIT-VL 16 tube support proper injection.

Mark the required mortar level m and embedment depth v with tape
or marker on the injection extension.

estimation:
lm = 1/3 · lv

precise formula for optimum mortar volume:
lm = lv · (1,2 · (ϕ2 / d

0

2

) – 0,2)

For overhead installationthe injection is only possible with the aid of
extensions and piston plugs. Assemble HIT-RE-M mixer,
extension(s) and appropriately sized piston plug. Insert piston plug to
back of the hole and inject adhesive. During injection the piston plug
will be naturally extruded out of the drill hole by the adhesive
pressure.

After injecting, depressurize the dispenser by pressing the release
trigger. This will prevent further mortar discharge from the mixing
nozzle.

Hilti HIT-RE 100 mortar w/

rebar (as post-installed conn.)

04 / 2016 9

Setting the element

Before use verify that the element is dry and free of oil and other
contaminants.

For easy installation insert the rebar slowly twisted into the drill hole
until the embedment mark is at the concrete surface level.

For overhead application:
During insertion of the rebar, mortar might flow out of the borehole.

For collection of the flowing mortar, HIT-OHC may be used.
Support the rebar and secure it from falling till mortar started to

harden, e.g. using wedges HIT-OHW.
For overhead installation use piston plugs and fix embedded parts

with e.g. wedges.

After installing the rebar the annular gap must be completely filled
with mortar.

Proper installation:

 desired anchoring embedment lv is reached: embedment

mark at concrete surface.

 excess mortar flows out of the drill hole after the rebar has

been fully inserted until the embedment mark.

Observe the working time t

work

, which varies according to temperature
of base material. Minor adjustments to the rebar position may be
performed during the working time.

Full load may be applied only after the curing time t

cure

has elapsed.

Hilti HIT-RE 100 mortar w/
rebar (as post-installed conn.)

04 / 2016 10

Drilling diameters

Rebar [mm]

Drill bit diameters d0 [mm]

Hammer drill (HD)

Compressed air drill

(CA)

Diamond coring

Dry (PCC)

Wet (DD)

8

12 (10

a)

)

-

12 (10

a)

)

10

14 (12

a))

-

-

14 (12

a)

)

12

16 (14

a))

17

-

16 (14

a)

)

14

18

17

- 18

16

20

20

-

20

18

22

22

-

22

20

25 / 24b)

26

-

25

22

28

28

-

28

24

32

32

35

32

25

32 / 30

b)

32 / 30

b)

35

32

26

35

35

35

35

28

35

35

35

35

30

37

35

35

35

32

40

40

47

40

34

45

42

47

42

36

45

45

47

47

40

55

57

52

52

a)

Max. installation length I = 250 mm.

b)

Both values can be used

Hilti HIT-RE 100 mortar w/

rebar (as post-installed conn.)

04 / 2016 11

Basic design data for rebar design according to rebar ETA

Bond strength in N/mm² according to ETA – 15/0883 for good bond conditions
for hammer drilling, compressed air drilling and diamond coring dry

Rebar [mm]

Concrete class

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

34

1,6

2,0

2,3

2,6

2,9

3,3

3,6

3,9

4,2

36

1,5

1,9

2,2

2,6

2,9

3,3

3,6

3,8

4,1

40

1,5

1,8

2,1

2,5

2,8

3,1

3,4

3,7

4,0

Bond strength in N/mm² according to ETA – 15/0883 for good bond conditions
diamond coring wet

Rebar [mm]

Concrete class

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

34

1,6

2,0

2,3

2,6

36

1,5

1,9

2,2

2,6

40

1,5

1,8

2,1

2,5

Amplification factor α

lb

for the minimum anchorage length and minimum lap length according to

EN 1992-1-1

Rebar

[mm]

Concrete class

C12/15

C16/20

C20/25

C25/30

C30/37

C35/45

C40/50

C45/55

C50/60

8 - 40

1,0

Rebar

[mm]

Concrete class

C12/15

C16/20

C20/25

C25/30

C30/37

C35/45

C40/50

C45/55

C50/60

8 - 40

1,5

For all other bond condiions multiply the values by 0,7.

For all other bond condiions multiply the values by 0,7.

For Hammer drilling (HD) and compressed air drilling (CA)

For diamond coring dry (PCC) and wet (DD)

Hilti HIT-RE 100 mortar w/
rebar (as post-installed conn.)

04 / 2016 12

Pre-calculated values of anchorage length for characteristic steel strength
fyk= 500 N/mm

2

For Hammer drilling and Compressed air drilling

Rebar

Concrete

class

fbd

N

Rd,s

l

0,min

1)

l

b,min

2)

l

bd,y,α2=1

3)

l

bd,y, α2=0.7

4)

[mm]

[N/mm2]

[kN]

[mm]

[mm]

[mm]

[mm]

8

C20/25

2,3

21,9

200

113

378

265

8

C50/60

4,3

21,9

200

100

202

142

10

C20/25

2,3

34,1

200

142

473

331

10

C50/60

4,3

34,1

200

100

253

177

12

C20/25

2,3

49,2

200

170

567

397

12

C50/60

4,3

49,2

200

120

303

212

14

C20/25

2,3

66,9

210

198

662

463

14

C50/60

4,3

66,9

210

140

354

248

16

C20/25

2,3

87,4

240

227

756

529

16

C50/60

4,3

87,4

240

160

404

283

18

C20/25

2,3

110,6

270

255

851

596

18

C50/60

4,3

110,6

270

180

455

319

20

C20/25

2,3

136,6

300

284

945

662

20

C50/60

4,3

136,6

300

200

506

354

22

C20/25

2,3

165,3

330

312

1040

728

22

C50/60

4,3

165,3

330

220

556

389

24

C20/25

2,3

196,6

360

340

1134

794

24

C50/60

4,3

196,6

360

240

607

425

25

C20/25

2,3

213,4

375

354

1181

827

25

C50/60

4,3

213,4

375

250

632

442

26

C20/25

2,3

230,9

390

369

1229

860

26

C50/60

4,3

230,9

390

260

657

460

28

C20/25

2,3

267,7

420

397

1323

926

28

C50/60

4,3

267,7

420

280

708

495

30

C20/25

2,3

307,3

450

425

1418

992

30

C50/60

4,3

307,3

450

300

758

531

32

C20/25

2,3

349,7

480

454

1512

1059

32

C50/60

4,3

349,7

480

320

809

566

34

C20/25

2,3

395,0

510

482

1607

1125

34

C50/60

4,2

395,0

510

340

880

616

36

C20/25

2,2

442,8

540

534

1779

1245

36

C50/60

4,1

442,8

540

360

955

668

40

C20/25

2,1

546,6

621

621

2071

1450

40

C50/60

4,0

546,6

621

400

1087

761

1): Minimum anchorage length for overlap joint

2): Minimum anchorage length for simply supported connections

3): Anchorage length for simply supported connections in case of: α1= α2= α3= α4= α

4): Anchorage length for simply supported connections in case of: α1= α3= α4= α5= 1; α2= 0.7

5

= 1