11
Accelerate concrete setting and early strength development. SikaRapid®-22 AU is a non-chloride liquid accelerator for concrete, mortar and grout where faster finishing or earlier formwork turnaround matters.
Key benefits
- Earlier strength: supports faster progress in suitable concrete mixes.
- Improved productivity: useful for precast production and time-sensitive site pours.
- Non-chloride formulation: suited to specified reinforced and prestressed concrete.
Where to use it
Designed for premix and precast concrete, selected slip-form applications and cooler-weather pours where early setting or strength is important.
Important to know
Verify dosage, set time and strength with project-specific mix trials. Introduce with batching water or a suitably mixed load, not dry ingredients. Check compatibility with any additional admixtures.
Non-chloride accelerator for concrete, mortar and grout.
Supports earlier finishing and formwork turnaround where early strength is required.
Useful for suitable cooler-weather concrete production.
Suitable for reinforced and prestressed concrete when specified.
Add with batching water or during normal concrete mixing, not into a dry mix. If dosed into an agitator truck on site, continue mixing for approximately one additional minute per cubic metre and check the load for uniformity. Establish exact dose and batching sequence by site trials, particularly where early strength or cold weather production is critical.
Do not introduce directly into dry mix. Do not combine with shrinkage-compensating or expanding admixtures. Sika advises compatibility with non-retarded Sika concrete admixtures; verify other combinations in mix trials. Early strength and setting speed depend on cement, mix design, temperature and curing conditions.
SikaRapid®-22 AU Physical Properties
| Property | Value |
|---|---|
| Product Type | Non-chloride setting and hardening accelerator |
| Appearance | Orange liquid |
| Density | 1.2 kg/L |
| Typical dosage | 500–2,000 mL per 100 kg of total cementitious material |
| Australian standard | AS 1478.1-2000 accelerator (Ac), meets/exceeds stated requirements |
| Shelf Life | 12 months in original unopened container |
| Storage | 5°C to 35°C; protect from sun and frost |
| Packaging | 10 L container |