Repair Systems
Tie wire & fixings
Annealed mild steel tie wire — technical reference for concrete spalling in Australian remedial building practice. Covers system selection, product comparisons, and brand equivalents.
What is tie wire & fixings?
Tie wire is annealed mild steel or galvanised wire, typically 1.6 mm diameter, used to secure reinforcing bars at intersections and maintain the designed bar spacing and cover depth within the rebar cage prior to concrete or repair mortar placement. In remedial rebar works, tie wire is used to fix new replacement or supplementary bars alongside or adjacent to corroded steel, and to fix mesh sheets and fabric reinforcement at the correct cover depth with plastic or stainless spacers. The wire itself does not carry structural load — its purpose is to maintain the cage geometry during mortar placement and vibration, ensuring the designed concrete cover and reinforcement arrangement are achieved. Stainless or galvanised wire is required in aggressive or marine environments where carbon steel tie wire tails could initiate surface corrosion staining on the repair surface.
Product Reference
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System Description
Standard 1.6 mm annealed wire for tying rebar. Use 316 stainless in marine/chloride environments.
Technical Properties
- Very low cost — minimal addition to project materials budget
- Simple to use with standard pliers or hand tying tools
Limitations
- Protruding tails must be bent in — exposed ends can initiate surface corrosion
- Not structural — tie wire positions the rebar cage only, does not carry load
PROCUREMENT SOURCES
System Description
Standard 1.6 mm annealed wire for tying rebar. Use 316 stainless in marine/chloride environments.
Technical Properties
- Very low cost — minimal addition to project materials budget
- Simple to use with standard pliers or hand tying tools
Limitations
- Protruding tails must be bent in — exposed ends can initiate surface corrosion
- Not structural — tie wire positions the rebar cage only, does not carry load
PROCUREMENT SOURCES
System Description
Standard 1.6 mm annealed wire for tying rebar. Use 316 stainless in marine/chloride environments.
Technical Properties
- Very low cost — minimal addition to project materials budget
- Simple to use with standard pliers or hand tying tools
Limitations
- Protruding tails must be bent in — exposed ends can initiate surface corrosion
- Not structural — tie wire positions the rebar cage only, does not carry load
PROCUREMENT SOURCES
System Description
Standard 1.6 mm annealed wire for tying rebar. Use 316 stainless in marine/chloride environments.
Technical Properties
- Very low cost — minimal addition to project materials budget
- Simple to use with standard pliers or hand tying tools
Limitations
- Protruding tails must be bent in — exposed ends can initiate surface corrosion
- Not structural — tie wire positions the rebar cage only, does not carry load
PROCUREMENT SOURCES
System Description
Standard 1.6 mm annealed wire for tying rebar. Use 316 stainless in marine/chloride environments.
Technical Properties
- Very low cost — minimal addition to project materials budget
- Simple to use with standard pliers or hand tying tools
Limitations
- Protruding tails must be bent in — exposed ends can initiate surface corrosion
- Not structural — tie wire positions the rebar cage only, does not carry load
PROCUREMENT SOURCES
Brand Equivalents
Side-by-side view of equivalent products across all major brands.
| Material | Ardex | Sika | Fosroc | Tremco / Other | Parchem / Mapei |
|---|---|---|---|---|---|
| Tie wire (1.6 mm) | Hy-Ten | Midalia Steel | OneSteel | Lysaght | Generic |
Disclaimer
Information is general only. Product selection must be confirmed against project requirements, substrate condition, exposure class, manufacturer technical data sheets, NCC requirements, Australian Standards (including AS 3600), and consultant or structural engineer specifications. Do not rely on this reference as a substitute for professional engineering advice.
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