Repair Systems — Concrete & Structural Defects
Epoxy anchoring adhesives
Technical product reference for injectable epoxy anchoring adhesives used to dowel new reinforcement and threaded rod into existing concrete in reinforcement corrosion repair — Hilti HIT-RE 500 V3, Sika AnchorFix-3+, Ramset Chemset Epoxy 500+, and Mapei Mapefox EW — AS 5216 compliant.
Epoxy chemical anchor adhesives for structural rebar and anchor installation in concrete repair
Epoxy chemical anchor adhesives are used to install post-drilled rebar (starter bars), threaded rods, and structural anchor bolts in existing concrete in reinforcement corrosion and structural repair works. They are the primary method for creating structural connections between new and existing concrete — for example, installing N12 or N16 starter bars to connect a repair pour to the existing slab or beam. All structural applications require anchors designed to AS 5216 by the structural engineer of record.
Product Reference
Individual products — one card each — scroll to view all
Hilti
Hilti HIT-RE 500 V3
Pure epoxy injection anchor — dry/damp/water-filled, seismic
Hilti HIT-RE 500 V3 is a pure-epoxy injection anchoring adhesive qualified for dry, damp and water-filled holes, with cracked-concrete (C2) and seismic approvals — for post-installed reinforcement and threaded rod. Design to AS 5216 via Hilti PROFIS. CONFIRM cartridge sizes and gel/cure times for the hole condition against the current Hilti AU documentation.
Sika Australia
Sika AnchorFix-3+
Epoxy-acrylate anchoring adhesive — dry/damp, cracked & uncracked
Sika AnchorFix-3+ is an epoxy-acrylate anchoring adhesive (AS 5216 / ETA) for rebar and threaded rod in dry and damp holes, approved for cracked and uncracked concrete, with a faster cure than a pure epoxy. CONFIRM cartridge sizes and gel/cure times against the current Sika Australia TDS.
Ramset
Ramset Chemset Epoxy 500+
Pure epoxy anchoring adhesive — dry/damp holes
Ramset Chemset Epoxy 500+ is a pure-epoxy anchoring adhesive (AS 5216 / ETA) for N12/N16 rebar and threaded rod in dry and damp holes, approved for cracked concrete. CONFIRM the cracked-concrete C-class, cartridge sizes and gel/cure times against the current Ramset AU documentation.
Mapei Australia
Mapei Mapefix EP 100
Pure epoxy chemical anchor — rebar / threaded rod
Mapei Mapefix EP 100 is a pure-epoxy chemical anchoring adhesive for post-installed rebar and threaded rod. CONFIRM the AS 5216 approval scope (cracked/seismic), hole moisture rating, cartridge size and gel/cure times against the current Mapei Australia TDS.
System Comparison
Epoxy anchoring adhesives — confirm all selections against the current manufacturer TDS before specifying.
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Do not confuse epoxy anchoring adhesives with:
- Mechanical anchors (expansion anchors, undercut anchors) — torque-set or undercut mechanical anchors work differently to chemical anchors; they are not tested or approved for rebar dowelling in reinforcement corrosion repair — use chemical anchors where the structural engineer specifies chemical bond
- Epoxy laminating resins (Sikadur-30, Adesilex PG1) — these are CFRP bonding adhesives applied to the concrete surface; they are not injection adhesives and must not be used as anchoring adhesives in drilled holes
- Rebar primers (SikaTop Armatec, Fosroc Nitoprime Zincrich) — rebar primers are applied to the cleaned rebar surface for corrosion protection; they are a different product from the anchoring adhesive and do not provide structural anchorage
- General construction adhesive — silicone, polyurethane construction adhesives, and general-purpose epoxy are not AS 5216 compliant anchoring systems and must not be used for structural rebar dowelling
- Bonding agents (SBR latex, acrylic bonding agents) — bonding agents are applied to the substrate to improve adhesion between old and new concrete; they are not anchoring adhesives and must not be used for rebar dowelling into drilled holes
Disclaimer
This page provides general technical information only. All structural anchor design must be confirmed by a structural engineer against AS 5216 and the current manufacturer TDS. Hole diameter, embedment depth, edge distance, and spacing are design inputs — do not estimate. Do not rely on this reference as a substitute for professional engineering advice.