Due to the nature of concrete and reinforced concrete, structures are built divided into sections by forming joints, namely three types – construction joints, movement joints and connection joints. The key function of joint sealing is to minimize water ingress and create a secure waterproofing barrier. The seal must be capable of accommodating the anticipated joint opening and closing due to static reasons or temperature changes. Joint sealing solutions are recommended for use in all kinds of construction and joints for waterproofing.
Sika Provides All Kinds of Joint Sealing Solutions
Hydrophilic Gaskets
The full range of hydrophilic (swellable) SikaSwell® profiles, rings, and gun-applied sealants are an efficient solution for construction joints and complementary sealing of penetrations to provide an additional line of protection against water ingress.
Advantages:
- Highly economical
- No influence on formwork or reinforcement
- Can be used as a back-up system
- Tested and approved system
- Alternative profiles available for different requirements
Thermoplastic Waterbars
Waterbars are the most common waterproof joint sealing solution for construction joints and are mandatory for expansion joints. The appropriate profile can be chosen from the wide range of Sika Waterbar® based on various materials, depending on project requirements.
Advantages:
- Easy design of closed systems for construction and expansion joints
- Easy connections by welding
- Different products, shapes and sizes for diverse requirements (load and exposure)
- Pre-fabricated waterstop systems possible
- Internal and external waterstops available
Adhesive Tapes
Sikadur-Combiflex® SG System or Sika® Dilatec® System are post-applied tape systems adhered with epoxy resin onto the membrane, providing an ideal solution for construction and expansion joints, in particular to seal joints of precast components.
Advantages:
- Approved for use in areas in contact with drinking water
- Easily adaptable to the construction method
- Excellent adhesion to different substrates
- Highly flexible
- Easily maintained
