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Technical Dayta Sheet Compedium

CONTENTS CONCRETE REPAIR CORROSION CONTROL GROUTS & ANCHORS PROTECTIVE COATINGS INDUSTRIAL FLOORING SURFACE TREATMENTS JOINT SEALANTS CONCRETE JOINTING JOINT FILLERS WATERPROOFING WATERSTOPS ROOFING TIMBER FLOORING ALPHABETICAL INDEX Page 2 555 Supercast Rearguard R Plain web sections which are placed externally for use in contraction and construction joints. They incorporate a central fin to assist setting out shutter location. All Rearguard sections incorporate a nailing flange with a reinforced edge to provide a secure fixing that will resist tearing. 250mm 22mm 200mm 150mm 20mm 20mm Design Criteria The choice of the width and thickness of waterstops is largely governed by concrete thickness, the position of the reinforcement, aggregate size and complexity of the pour. In general the 250 mm width of waterstop is suited to wall thicknesses of 250 mm and over. For concrete less than 250 mm thick, the use of a narrower waterstop approximating to the wall thickness will be appropriate. Centrally placed waterstop These waterstops are positioned within the thickness of the concrete components and as a result are supported by concrete on both sides. They are therfore able to withstand water pressure from either side. Theis makes them suitable for use in water retaining structures. They will prevent loss of water from within the tank and will prevent ingress of ground water when the tank is drained down. Externally placed waterstop These waterstops are designed for use in basement, foundation and floor slab construction in vertical and horizontal joints in both water retaining and water excluding structures. When used in walls, externally placed waterstops will only resist water pressure from the face to which they are fixed. When used below floor slabs, where the waterstop is supported by the building concrete or when placed in vertical situations against permanent concrete shuttering, externally placed waterstops will resist water pressure from either face. Properties Form: Extruded thermoplastic sections Colour: Blue Hydrostatic head: Up to 60 m Joint movement: Up to 10 mm Compound Typical figures: To BS 2571, Class 3, Type G3 Tensile strength: Minimum 16 MPa Elongation at break: Minimum 265% Hardness: Shore ‘A’ 70 - 90 Specification Clauses 1. Supplier specification Where indicated on the drawings, PVC waterstops shall be Supercast Waterstops obtained from parchem. All wall / floor waterstop connections shall be made using Supercast intersections supplied by Parchem. Installation Instructions Supercast Hydrofoil Waterstops must be installed so they are securely held in correct position while concrete is being placed. Concrete must be fully compacted around waterstops to ensure no voids or porous areas remain. Where reinforcement is present, and adequate clearance must be left to permit proper compaction. The brass eyelets used for securing the waterstops are located outside the edge bulbs so as not to create water paths around the profile. Supercast Rearguard When used on ground slabs where waterstop is supported on blinding, Rearguard profiles usually require no fixing. Lay waterstop centrally over line of the joint to be formed. Fixing to vertical shuttering is done by nailing through the outer nailing flanges leaving the head of the nail proud so that it is held in the cured concrete. This prevents the waterstop being displaced when the shuttering is struck. Fixing to vertical shutter Fosroc® Supercast PVC Waterstops


Technical Dayta Sheet Compedium
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