What is a waterbar in concrete?
A waterbar (or waterstop) is a: ‘Preformed strip of durable impermeable material that is wholly or partially embedded in concrete bund walls and floors during construction or remediation.
What does a waterbar do?
A water bar or interceptor dyke is a road construction feature that is used to prevent erosion on sloping roads, cleared paths through woodland (for utility companies such as electricity pylons), or other accessways by reducing flow length.
What is waterstop for concrete?
A waterstop is a material embedded in the concrete, with the singular purpose to obstruct the passage of water through the joint. In other words, it is not an elastomeric sealant adhered to the exposed surface of a joint.
What is Sika Waterbar?
Sika®-Waterbars are flexible waterstops based on plasticized PVC, produced in specific profiles to seal construction and expansion joints when cast in concrete. They are available in a range of different sizes and types according to their use.
How do I apply to SikaSwell?
SikaSwell® A application Cut the SikaSwell® A-Profile to the required length. Press the SikaSwell® A-Profile into the freshly applied SikaSwell S-2 until a small quantity is extruded from both sides of the profile to achieve a full surface bond. The profiles must be placed within max. 30 minutes.
How do you waterproof cold joints in concrete?
Superstop is used for sealing cold joints in concrete and to prevent water migration through construction joints below grade. Properly installed under compaction, Superstop will stop the passage of water through a static cold joint or between two abutting impermeable surfaces.
What is difference between water bar and water stopper?
Waterstops used in construction industry provides waterproofing. Waterbar is used in water and transportation industry to improve the quality of construction. Common structural applications are in: Water and sewage disposal projects.
How does PVC waterstop work?
Embedded in concrete, PVC Waterstops span the joint to form a continuous, watertight diaphragm that prevents the passage of liquid through the joint. The waterstop must be properly selected and installed to accommodate joint expansion, contraction, and other longitudinal and transverse movements.
What is SikaSwell?
SikaSwell A Profiles are acrylic, swellable joint sealing profiles and rings which swell in contact with water. Used to seal construction joints in watertight concrete construction, pipe and steel work penetrations through walls and floor slabs, etc.
How does Sika Swell work?
When in contact with water, the SikaSwell® waterstop builds up a swelling pressure inside of the construction. This swelling pressure seals the construction joint and stops water crossing.
What is bentonite waterproofing?
Bentonite waterproofing is an exterior waterproofing treatment that is supposed to work by forming a barrier between wet soil and the building foundation. Like any type of clay, bentonite absorbs moisture.
How do you waterproof cold concrete joints?
How does a concrete water bar work?
Waterbars are positioned in the centre of the construction joint, so that, should water begin to enter the joint and reach the centre, the waterbar swells on contact forming a seal against the concrete, preventing further ingress by the water.
What is hydrophilic waterstop?
Hydrophilic waterstops are elements of a concrete structure, intended to prevent moisture infiltration. Hydrophilic means “water-loving”, so these hydrophilic waterstops swell in the presence of moisture. They can be used to seal concrete joints, but also to seal formwork spacers or tie rods.
What is a Waterbar in concrete joints?
For sizeable concrete structures like retaining walls, basements, reservoirs and tunnels joints are inevitable. It can be construction or expansion joints or both. Joints in direct contact with water need the protection of a waterbar. They are hydrophilic or impervious strips cast into the concrete at the joints to prevent the passage of water.
What is A waterstop in concrete?
Waterstops or Waterbar. Waterstops or waterbars are flexible tape like elements of a concrete structure that prevent the passage of water through concrete joints. Concrete joints are most liable to seepage.
What are Waterstops or waterbars?
Waterstops or waterbars are flexible tape like elements of a concrete structure that prevent the passage of water through concrete joints. Concrete joints are most liable to seepage.
What is a Waterbar and why do you need one?
Joints in direct contact with water need the protection of a waterbar. They are hydrophilic or impervious strips cast into the concrete at the joints to prevent the passage of water.