What is hydrophilic water Stop?
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.
How does PVC waterstop work?
Hydrophilic waterstops are adhered directly to the surface of the first concrete pour in preparation for the second concrete pour to form the joint area. The material in the strip reacts with water and swells to form a positive watertight seal in the concrete joint.
What is bentonite waterstop?
Bentonite waterstop is a kind of hydrophilic water sealing product coming with incomparable durability and higher water absorption no less than 300%.
What is waterstop for concrete?
Waterstop is a material that is embedded in the concrete, across the concrete joint, to obstruct the passage of water through the joint. A waterstop installed in concrete joints is an important component of the overall waterproofing design.
How do I apply to SikaSwell?
Press the SikaSwell® A profile or SikaSwell® P profile firmly into the fresh applied SikaSwell® S-2. The profiles must be placed within maximum 30 minutes (at +23 °C / 50 % r.h.). 2. Ensure full and continuous contact between the SikaSwell® S-2 and both the SikaSwell® profile and the substrate is achieved.
What is a water stopper?
A waterstop is an element of a concrete structure, intended to prevent the passages of fluids (such as water) when embedded in and running continuously through concrete joints.
How do you size a waterstop?
Waterstop size (i.e. width) is determined by the expected head of water pressure to be encountered at the joint. The general rule of thumb is the larger the size of a waterstop (e.g. widths of 102, 152, 229 mm [4, 6, 9 in.]), the greater the hydrostatic pressure resisted by the waterstop.
Where do you put waterstops?
Waterstops are typically applied at below-grade construction joints (horizontal or vertical) that are subjected to hydrostatic pressure. They are embedded into the concrete and span the length of the joint.
Where can I use waterstops?
Therefore, waterstops are used as part of the overall waterproofing protection on a variety of concrete structures including:
- basement walls and slabs;
- subway, vehicle, and pedestrian tunnels;
- parking structures;
- water and sewage treatment facilities; and.
- canals, locks, and dams.
How does Sika Swell work?
SikaSwell® S-2 is a 1-part polyurethane hydrophilic sealant which swells in contact with water to seal all types of construction joints and penetrations in concrete.
What are hydrophilic Waterstops used for?
Sika has a variety of hydrophilic waterstops with a proven track record for being high quality and a cost effective solution for water containment needs. These products may be used for various applications where you need to keep water in or out.
What is hydro-flex® waterstop?
Designed to swell into unconsolidated concrete surfaces upon contact with water, Hydro-Flex ® Waterstop features an advanced blend of butyl rubber, polypropylene elastomers, hydrophilic fillers and plasticizers. For exterior use only. Eliminates split forming, wiring to rebar, heat welding of splices
What is the purpose of using water resistant products?
These products may be used for various applications where you need to keep water in or out.