Sika Waterbar® O EG
INTERNAL WATERBARS FOR EXPANSION JOINT SEALING IN WATERTIGHT CONCRETE CONSTRUCTION
Sika Waterbars Type O made from PVC-P are used for sealing expansion joints in watertight concrete structures. Sika Waterbars PVC-P Type O are available in a range of different sizes to suit different structures and applications.
▪ Permanent flexibility Suitable for medium levels of hydrostatic pressure and stress
▪ Resistant to all natural mediums in soil and groundwater that are aggressive to concrete
▪ Weldable
Usage
Application fields: ▪ Joint sealing in concrete structures▪ Expansion joint sealing in insitu concrete Typical structures include:
▪ Residential building basements
▪ Commercial building basements
▪ Underground car parks
Advantages
▪ High tensile strength and elongation▪ Permanent flexibility Suitable for medium levels of hydrostatic pressure and stress
▪ Resistant to all natural mediums in soil and groundwater that are aggressive to concrete
▪ Weldable
Packaging
Standard rolls 15 or 30 m dependent on profile.
Colour
Yellow
Product Details
APPROVALS / STANDARDS
Standards / Directives: Profile geometry and physical properties according to Sika Factory Standard
▪ Sika Waterbar PVC-P welding instruction and method statement
▪ Testing & Approvals: Manufacturer’s test certificates provided, other certificates by agreement
Chemical Base
PVC-P Polyvinyl Chloride Plasticized
Shelf Life
The product does not expire if stored correctly
Storage Conditions
▪ To be stored on the pallets as supplied on a flat base
System Structure
| Total width (mm) a | Width of movement part (mm) b | Thickness (mm) c | Width of sealing part (mm) |
| O20L (200mm) | 75mm | 3.5mm | 62.5mm |
| O25L (250mm) | 96mm | 2.4mm | 77mm |
| O32L (320mm) | 114mm | 3.0mm | 103mm |
| O20 (200mm) | 66.5mm | 3.0mm | 66.75mm |
| O25 (250mm) | 102mm | 3.5mm | 74mm |
| O32 (320mm) | 108mm | 3.5mm | 106mm |
Shore A Hardness
90 ± 5 DIN 53505
Tensile Strength
≥ 10 N/mm2 DIN 53455
12 - 15 N/mm2 CRD-C 573 , ASTM D-412 & D-638
≥ 11 N/mm2 BS 2782 M320A
Elongation
> 300 % DIN 53455
300% - 350% CRD-C 573, ASTM D-412 & D-638
> 300 % BS 2782 M320A
Tear Strength
≥ 12 N/mm2 DIN 53507 A
Chemical Resistance
Permanent: Water, seawater, sewage, road salt solutions.
Temporarily: Diluted inorganic alkalis, mineral acids and mineral oils.
Service Temperature
- 35°C to + 55°C
Application
APPLICATION INSTRUCTIONS
APPLICATION METHOD / TOOLS
General
Only butt joints should be formed on site with Sika Waterbars PVC-P Type O.
Prefabricated formpieces:
Standard formpieces (flat or vertical) for Sika Waterbars PVC-P Type O include: Cross pieces, T-pieces, L-pieces.
Prefabricated formpieces help to reduce the required butt joints on site to a minimum.
Special formpieces:
Combined formpiece systems using combinations of different standard connections and profiles. The standard maximum total length of formpiece system is 20m maximum. Longer formpiece systems on request.
Handling:
▪ Careful transport and handling on site
▪ Installation at ambient and waterbar material temperatures ≥ 0°C
▪ Protection until the waterbar system is fully cast in the concrete
▪ Special care must be taken with the waterbar system ends
▪ Waterbars must be cleaned before casting in
Application:
▪ Internal waterbars are to be installed within the concrete section and clearance from the edge of the concrete must be at least half of the total width a of the waterbar
▪ Detailed information on installation is given in the relevant method statement and instruction for use. If there are very high stresses or difficult concreting conditions, the waterbars can be combined with integrated injection hoses installed locally on the lateral anchoring ribs to additionally inject / grout around the cast-in parts at a later date.
Jointing on site:
The Sika Waterbars PVC-P Type O are butt jointed by welding.
Jointing with adhesives is not permitted.
Requirement: Minimum ambient temperature + 5°C and dry weather conditions.
Site joints must be formed only by trained and qualified personnel.