The cost of ties, especially the labour costs for setting the ties, is an important factor in formwork. The right choice of tie system is crucial particularly for structures with special requirements such as sewage plants where waterproof concrete is necessary.
PERI DK and SK tie systems are:
- checked and certified by the LGA Bavaria materials testing laboratory
According to the recommendations of the Forschungs- und Prüfgemeinschaft Geldschränke und Tresoranlagen e.V. (German Certification Board for Security Systems), the SK system is also suitable for high security areas. With the DK tie system for fair-faced concrete, PERI supplies cones which cover a very wide range of architectural requirements.
The DK system consists of 2 re-usable DK sealing cones and an embedded spacer tube.
The SK system consists of 2 re-usable SK tie cones and 3 tie rods whereby the middle rod can be embedded.