PRODUCT DESCRIPTION
Sika® Air Pak is a powdered air-entraining admixture made from synthetic surfactants, designed for easy use with water-soluble bags for convenient addition and handling.
USES
It is typically used in concrete that requires high resistance to freeze/thaw cycles, exposure to tidal conditions, splash zones, and de-icing salts.
CHARACTERISTICS / ADVANTAGES
Sika® Air Pak offers the following benefits:
- Uniform bubble size and spacing
- Enhanced cohesion
- Improved rheology
- Reduced segregation and bleeding
- Convenient packaging in water-soluble bags for easy use
APPROVALS / STANDARDS
Meets the requirements of BS EN 934-2 Table 5, DoP 65221305, and is certified by Factory Production Control Body 0120, with the UKCA mark.
PRODUCT INFORMATION
- Chemical Base: Powdered blend of synthetic surfactants
- Packaging: 60 x 0.25 kg water-soluble bags in a sealed tub
- Shelf Life: 12 months if stored correctly in unopened, original packaging
- Storage: Store in dry conditions between +5°C and +25°C, protect from sunlight and frost
- Appearance: Pale grey powder
- Bulk Density: 0.95 kg/L
- Chloride Ion Content: <0.1% w/w (chloride-free)
- Sodium Oxide Content: <0.4% w/w (alkali content)
TECHNICAL INFORMATION
- Sika® Air Pak is suitable for concrete with a slump <50mm (semi-dry/extruded). Trial mixes are necessary to ensure efficacy.
- Overdosing may cause excessive air-entrainment, reducing compressive strength.
APPLICATION INFORMATION
- Recommended Dosage: 1-4 bags per m³
- Dispensing: Do not add to gauging water; add directly to the truck mixer and rotate the drum at maximum speed for 1 minute per m³, ensuring uniform mixing.
- Compatibility: Compatible with other Sika admixtures; trials recommended before combining with specific products.
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