Sika is the market leader in concrete admixture technology. Combining this with our expertise in waterproofing has led to the development and evolution of the Sika® Watertight Concrete System, now the most widely used system of its type in Ireland.
The Sika® Watertight Concrete System provides waterproofing for:
- Basements
- Lift pits
- Retaining walls
- Concrete facades
- Keeping water in e.g. Swimming pools
Sika® Watertight Concrete complies with BS 8102:2009 Type B Construction.
Whether keeping water out or keeping water in, a concrete structure can become truly watertight by using engineered waterproofing that incorporates the Sika® Watertight Concrete System. This rigid and integral system includes a full range of concrete admixtures for the production of watertight concrete, a complete spectrum of products for watertight joints and crack limitation, as well as design detailing and cost engineering for complex structures.
Waterproof concrete is normally an impermeable concrete. To obtain an impermeable concrete, a suitable particle-size distribution curve must be generated and the capillary porosity has to be reduced.
Our Range of Watertight Concrete System
FAQ
Watertight concrete is concrete that has been specifically designed to prevent water ingress or egress, using water resisting admixtures to enhance its impermeability. It is ideal for structures exposed to water pressure, such as basements, retaining walls, concrete facades and water tanks.
Sika® Watertight Concrete Powder is a combined water resisting and superplasticising concrete admixture. It reduces water absorption and penetration while enhancing the workability and strength of the concrete.
Sika®-1+ is a liquid water resisting admixture that reduces water absorption and penetration to produce high quality watertight concrete. It’s used in waterproofing applications such as tunnels, water retaining structures, lift pits and below-ground structures where a watertight finish is essential.
Sika Antisol®-3 E is a curing agent that forms a thin film on freshly placed concrete to reduce moisture loss. Proper curing with Antisol®-3 E helps prevent surface cracking, reduces shrinkage and ensures the concrete reaches its full watertight potential.
Watertight concrete admixtures reduce water ingress, increase durability and lower the risk of cracking.
The right choice depends on your structure’s exposure, concrete mix design and waterproofing grade required. Contact our technical team for expert guidance on selecting the best combination of products for your watertight concrete system.