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With Post-Installed Rebars
Eurocode EC2 EN 1992-1-1 Design
The actual position of the reinforcement in the existing structure shall be determined on the basis of the construction documentation and taken into account when designing. The design of post-installed rebar connections and determination of the internal section forces to be transferred in the construction joint shall be verified in accordance with EC2 EN 1992-1-1. When ascertaining the tensile force in the rebar, allowance shall be made for the statically effective height of the bonded-in reinforcement.
Determination of the basic anchorage length
The required basic anchor length 
shall be determined in accordance with EC2 EN 1992-1-1, equation (8.3)
with:
= diameter of the rebar
= calculated design stress of the rebar
= design value of bond strength according to corresponding ETA, in consideration of the coefficient related to the quality of bond conditions and of the coefficient related to the bar diameter and of the drilling technique.
Determination of the minimum anchorage depth
- Anchoring rebar
In the case of anchoring rebar, the minimum anchorage length, 
must be determined as follows:
- Overlap joint
In the case of overlap joint, the minimum anchorage length, must be determined as follows:
where 
= Basically, always 100% of the reinforcement in the joint between existing and new component are lapped. The factor is therefore always 1.5.
Determination of the design anchorage length
- Anchoring rebar
In the case of anchoring rebar, the design anchorage length, 
must be determined as follows:
- Overlap joint
In the case of overlap joint, the design anchorage length, must be determined as follows:
General design rule of construction of post-installed rebars
= diameter of post-installed rebar
= drill bit diameter
= lap length
1) If the clear distance between overlapped bars exceeds 
, then the lap length, shall be increased by the difference between the actual clear distance and .
= effective embedment depth 
2) For calculation of the effective embedment depth of overlap joints the concrete cover at end-face of the post-installed rebar 
shall be considered.
= concrete cover at end-face of post-installed rebar
= concrete cover for post-installed rebar
= minimum concrete cover
= minimum spacing for post-installed rebars
3) The spacing between post-installed rebars shall be greater than the minimum of 
and 50mm.
- A) Application with connecting reinforcement
1) Slab to slab on support / Beam to beam on support:
Connection of a slab or a beam to an existing supported component by overlapping the reinforcement (reinforcement lap).
2) Slab to slab / Beam to beam:
Connection of a slab or a beam to an existing component by overlapping the reinforcement (reinforcement lap).
3) Wall to foundation / Column to foundation (lap):
Connection of a wall / column to an existing foundation by overlapping the reinforcement (reinforcement lap).
5) Wall extension / column extension:
Connection of a wall / column to an existing component by overlapping the reinforcement (reinforcement lap).
7) Envelop of tensile force (bottom reinforcement layer):
Anchoring of reinforcement to cover the envelop of the tensile force in a component (slab or beam) subjected to bending.
- B) Application without connecting reinforcement
4) Wall to foundation / Column to foundation (compression):
Connection of a wall or column under compression to an existing foundation (only compression force N permitted).
6) End anchoring of slab or beam (simply supported):
End anchoring of a simply supported slab or beam (only shear force V permitted).
7) Envelop of tensile force (bottom reinforcement layer):
Anchoring of reinforcement to cover the envelop of the tensile force in a component (slab or beam) subjected to bending.
Drill bit diameters,
The multiplication factor for minimum anchorage length shall be considered as 1.0 for all drilling methods
Minimum anchorage and lap lengths for C20/25 and maximum hole lengths, 
Minimum concrete cover of post-installed rebar depending of drilling method
Design values of the ultimate bond resistance in N/mm2 for hammer drilling , compressed air drilling methods for good conditions
Design values of the ultimate bond resistance in N/mm2 for diamond core drilling method for good conditions
Fire Resistance Data according to CSTB, Report 26050230
- Wall to slab connection
- Non cracked concrete C/20/25,
= 20 N/mm2 - Rebar 500,
= 500 N/mm2 - Fire resistance classes F30 to F240 according to EC2 fire situation anchorage
Bond strength depending on concrete cover in the case of fire exposure
- Fire situation in slab to slab or wall to wall parallel (overlapping joint) connection
- C-RE 585 maximum bonding stress in relation to fire resistance classes and required minimum concrete coverage
Chemical Resistance
Electrical Insulation
C-RE 585 have good electrically insulating characteristics hence it is not conductive electrically in the hardened state. Its electric resistivity is 1.2 
C-RE 585 is suitable for railway track anchoring applications and rail constructions where require electrical insulation anchoring systems.
Setting Instructions
Dry, wet/damp and water-saturated concrete, hammer drilling method
C-RE 585 (585ml, 385 ml) Resealable Hard Plastic Cartridge
Static Mixing Nozzle
Rebar FE460, Rebar BSt 500 S
Property Class 5.8, 8.8. Stainless Steel A4-70
1)
Drill hole with hammer drill to the required rebar size and depth.
2a) Manual Cleaning
i) Blow the hole clean with hand pump up to hole diameter 20mm.
ii) Brush the hole with appropriate size wire brush.
iii) Blow the hole clean again with hand pump minimum 2 times.
2b) Compressed air cleaning
i) Use compressed air (min.6 bar) hole diameter >20mm or depth >240mm.
ii) Attached the appropriate size wire brush to a drilling machine or battery screwdriver.
iii) Blow the hole clean again with compressed air (min. 6 bar).
3)
Mark embedment depth on the rebar. The bar should be free of dirt.
4)
Attached static nozzle to the cartridge.
5)
Load the cartridge into dispensing tool.
6)
Discard non-uniformly mixed until mortar shows consistent grey colour.
7)
Starting from bottom and back of the cleaned hole, fill the hole up to approximately 2/3 with adhesive. Slowly withdraw the static mixing nozzle as the hole fills to avoid creating air pockets.
8)
Use piston plug for overhead installation.
9)
Push the rebar into the hole while slightly turning action.
10)
Be sure the rebar is fully embedded and excess mortar is visible.
11)
Allow the adhesive to cure prior to applying any load or torque.
Water flooded bore hole or submerged concrete, hammer drilling method
1)
Drill hole with hammer drill to the required rebar size and depth.
2a)
Rinsing with water until clear water comes out.
2b (i)
Brush the hole with appropriate size wire brush.
2b (ii)
ii) Attached the appropriate size wire brush to a drilling machine or battery screwdriver.
2c)
Rinsing again with water until clear water comes out.
3)
Mark embedment depth on the rebar. The bar should be free of dirt.
4)
Attached static nozzle to the cartridge.
5)
Load the cartridge into dispensing tool.
6)
Discard non-uniformly mixed until mortar shows consistent grey colour.
7)
Starting from bottom and back of the cleaned hole, fill the hole up to approximately 2/3 with adhesive. Slowly withdraw the static mixing nozzle as the hole fills to avoid creating air pockets.
8)
Push the rebar into the hole while slightly turning action.
9)
Be sure the rebar is fully embedded and excess mortar is visible.
10)
Allow the adhesive to cure prior to applying any load or torque.
Note: Unknown temperature range for flooded hole or submerged concrete, allow the adhesive to cure min. 72hrs (3days) for full load capacity.
