Waterproof concrete is an impermeable concrete used for long-lasting, durable watertight construction. To improve the impermeability of the concrete, water-resisting admixtures can be added. Nevertheless, design and construction of a watertight concrete structure is a system approach, and waterproof concrete is only one element of it. Water impermeability is determined by fulfilling requirements to limit water permeability through the concrete itself, the joints, installation parts and cracks.
Sika's Admixtures for Waterproof Concrete Have Many Advantages
- Significantly improve durability and sustainability of the hardened concrete
- Reduce maintenance costs
- Sika® WT-100 ensures water tightness without other expensive measures
- Sika® WT-200 series additionally enhances the self-healing properties of concrete and promotes the ability to heal concrete cracks
- Increase in service life of the construction
- Waterproof concrete achieved with our admixtures can be used as part of the Sika® Watertight Concrete System
Sika Offers a Comprehensive Solution for Watertight Structures
The Sika® Watertight Concrete System can be used for all types of below-ground structures, including habitable basements, car parks and areas for business use. As with all below-ground structures, adequate ventilation and air conditioning should be ensured according to the intended use.
| Keeping water OUT | Keeping water IN |
|---|---|
| Below-ground rooms | Swimming pools |
| Habitable basements | Water-retaining structures |
| Parking garages | Dams |
| Utility / plant rooms | Water infrastructure |
| Tunnels | Waste water treatment structures |
Key Advantages of Sika® Watertight Concrete System
- Time saved at design and construction stages, as the need for complex detailing and installation is eliminated
- Cost effective in comparison with other systems
- Delivers maximum usable area to the occupier
- Peace of mind for the owner, designer, contractor, and end user of the building
Sika® Watertight Concrete System Components
Sika® WT-100 series is a range of pore blocking admixtures.
Sika® WT-200 series is a range of crystalline pore-blocking and enhancement self-healing admixtures.
Sika® ViscoCrete® can be used for lower water-cement ratio, which reduces the size of the capillary structure.
Sika® Waterbar are used to waterproof expansion (movement) and construction (no-movement) joints.
SikaSwell® profiles and sealants swell in contact with water to seal construction joints (non-movement joints), service entries and penetrations.
SikaSwell® rings and plugs and Sikadur®-31 are used to seal formwork tie bar holes against water ingress.
Sika® Antisol® is a spray-applied curing compound to prevent early moisture loss.
Sikadur-Combiflex®-SG is a high performance joint and crack sealing system.
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