Concrete and reinforced concrete structures must always be built divided into sections, by forming joints – construction (daywork and isolation) joints and/or expansion (movement) joints. For sealing and waterproofing of the concrete structure, waterstops are installed in all of these necessary joints. The selection of the right waterstop material, its overall waterproofing concept, design and profiles are dependent on the specific structure, its exposure and the construction process. The functions of these waterstops are primarily to act as a waterproofing seal in the joint, plus to allow the two sections to move independently of each other – without restriction (free of tension). 

Waterstops are used for the waterproof sealing of construction and expansion joints against water penetration from percolating ground water and water under hydrostatic pressure, as well as for surface / end capping joints.

Key Advantages Joint Waterproofing

Man applying Sikaswell joint Waterproofing
  • 50 years’ technical and application experience
  • Many different applications
  • Alternative materials dependent on the requirements
  • Alternative sizes and profiles
  • Individual and customized solutions
  • High performance sealing system

Typical Application in Different Types of Structures

Basement

Waterstops are the easy and economical way of expansion and construction joint sealing.

Infrastructure

For major civil engineering structures and their intersections with high exposure and performance demands; waterstops are the ideal method of  ensuring watertight joint sealing and waterproofing.

Water Tanks

Special waterstops have been developed and approved for tank and service reservoir joint sealing in contact with potable water. These have proven  durability and guarantee the consumer top quality drinking water.

Industrial Facilities

The high chemical resistance of the waterstops series, provides the necessary high security for all types of processing and containment structures, which also ensures protection of the environment.

Refurbishment

Waterstops can also be installed during refurbishment and extension works i.e. between new and existing structures. Flanged waterstops are perfect for sealing all types of these difficult construction and expansion joints.

 

Illustration of Sika red hydrophilic gasket at concrete foundation joint

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