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Technical Dayta Sheet Compedium

CONTENTS INDEX 558 Technical CONCRETE REPAIR CORROSION CONTROL GROUTS & ANCHORS PROTECTIVE COATINGS INDUSTRIAL FLOORING SURFACE TREATMENTS JOINT SEALANTS CONCRETE JOINTING ROOFING WATERSTOPS WATERPROOFING JOINT FILLERS TIMBER FLOORING ALPHABETICAL Data Sheet Centrally and externally placed PVC waterstops Uses The Sure-Stop range of economical PVC waterstops is designed to provide an integral sealing system for movement and construction joints in concrete cast in-situ. These joints typically occur in the following types of structure: Water Retaining „ Sewage treatment plants „ Water treatment plants „ Swimming pools „ Reservoirs „ Dams and spillways „ Bund walls Water Excluding „ Basement areas „ Underground carparks „ Tunnels „ Retaining walls „ Suspended slabs „ Pits „ Roof slabs Advantages „ A range of profiles and sizes to suit all construction Page 1 February 2010 requirements „ Factory made intersections to simplify and minimise on-site fabrication „ Conforms to relevant international standards „ On-site welding equipment available „ Eyelets punched in outer flanges for easy wire tying to reinforcing bars „ Long roll lengths to reduce the amount of welding / joining on site Description Sure-Stop PVC waterstops are extruded from high quality materials in accordance with major international standards, giving superior physical properties. They are specially designed for use throughout the construction industry in water retaining and water excluding structures where a positive seal is required for poured insitu concrete expansion, construction and contraction joints. Two types of profiles are available. Sure-Stop Centrestop “CB” for centrally placed applications and Sure-Stop Rearguard “RG” for externally placed applications. These profiles are available in rolls with separate intersections supplied to simplify and minimise on-site fabrication. The design and size of the profiles provide a difficult path and greater resistance for water to get around while allowing concrete to be easily placed around them. The range of profiles for central and external applications when embedded into the concrete forms a continuous uninterrupted barrier making Sure-Stop PVC waterstop ideal for preventing water penetration where watertightness is essential. Properties Tensile strength: 14 MPa (min) Elongation at break: 250% (min) Hardness shore “A”: 70 -90 Hydrostatic head: 30 m Joint movement: Up to 10 mm Sure-Stop Waterstop conforms to BS2571 specification for flexible PVC compounds Class 3 Type E3. Design Criteria The correct width of waterstop depends on the thickness of the concrete and positioning of the reinforcement. The thickness of the concrete should be greater than or equal to the width of the waterstop profile. For concrete thickness over 250 mm use Sure-stop 250 mm wide profiles. It is generally recommended to use the same size profile throughout the structure to make installation and site joining simpler and easier. The efficiency of any waterstop is very dependent on good workmanship and on full compaction of the concrete. Always thoroughly vibrate concrete around the waterstop to avoid air entrapment and to provide a positive contact between the waterstop and concrete. Thin Slabs Precaution: the efficiency of any PVC Waterstop is very dependant on good workmanship and on full compaction of the encasing concrete. Without due consideration of both these factors, optimum performance will not be achieved. For this reason PVC Waterstops in thin slabs should be avoided as it is difficult to ensure proper compaction of the concrete and removal of air pockets and porous areas. Sure-Stop PVC Waterstops February 2010


Technical Dayta Sheet Compedium
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