Concrete Anti-Freezing Admixture
Combines anti-freeze and early-strength components to depress the freezing point of the mix water and keep hydration going at sub-zero temperatures.
Overview
Anti-freeze admixtures depress the freezing point of the mix water and supply early-strength components so hydration continues at sub-zero temperatures, avoiding the strength loss and porous structure caused by early frost damage.
Key benefits
- Three temperature grades (-5 / -10 / -15 °C) selected to match site conditions
- Chloride-free type suitable for reinforced and prestressed concrete
- Combined water-reducing and early-strength action shortens time to critical strength
- Powder form simplifies transport and storage in cold regions
Application notes
An anti-freeze admixture does not replace curing protection. Use with heated mix water, pre-heated aggregates and insulating covers. Place at no less than 5 °C and allow the concrete to reach critical strength (typically 30% of design) before exposure to frost.
Typical uses
Winter cast-in-place concrete, high-altitude and high-latitude projects, cold-store structures, emergency repairs.
Technical specification
| Applicable minimum temperature | -5 °C / -10 °C / -15 °C, three grades |
| Appearance | Colourless to pale yellow liquid / grey powder |
| Chloride content | ≤ 0.05% (chloride-free ≤ 0.01%) |
| Water reduction | ≥ 12% |
| 7 d strength ratio (-10 °C) | ≥ 20% of design strength |
| 28 d compressive strength ratio | ≥ 95% |
| Rebar corrosion | None (chloride-free type) |
| pH value | 7.0 – 10.0 |
Standards
Applications
- Winter concreting
- High-altitude works
- Cold-store structures
- Emergency repair
Related products
Concrete Accelerator (Shotcrete Set Accelerator)
Initial set < 5 min · Low rebound · Alkali-free option
Concrete Air-Entraining Admixture
Stable micro-air system · Freeze-thaw resistance