Description
Sika® Sigunit® Powder BA is a ready-to-use powder accelerator and waterproofing agent that is added to dry gunite mixes. It is designed for use in hot and tropical climates.
Uses
Sika® Sigunit® Powder BA is suitable for dry spray gunite mortar and concrete mixes. Common applications include:
- Tunnels and galleries
- Rock face stabilization
- Embankment and excavation stabilization
- Thin concrete shell structures
- Swimming pools
- Concrete repairs
- Strengthening concrete structures
Characteristics / Advantages
Sika® Sigunit® Powder BA reacts within the mix to enhance the hydration process, resulting in rapid setting and accelerated strength gain within the first 24 hours. Additional benefits include:
- Easier overhead spraying
- Reduced rebound
- Improved adhesion to areas with minor seepage
Product Information
- Chemical Base: Cement activator
- Packaging: 15 kg bag
- Shelf Life: Minimum 6 months from production date if stored in original, unopened packaging
- Storage Conditions: Store in a dry place between 5°C and 35°C, away from direct sunlight
- Appearance/Colour: White powder
- Density: Approx. 0.70 kg/l
- Total Chloride Ion Content: Nil
Application Information
- Recommended Dosage: 2-10% by weight of cement
- Dispensing: Add the required amount of Sika® Sigunit® Powder BA to the dry sand/cement or sand/cement/gravel mix before it is fed into the shotcrete machine.
- Curing: Proper curing is essential, especially in hot conditions, to prevent plastic and drying shrinkage. Use Sika® Antisol® products or apply wet hessian as a curing agent.
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