NBS Clause E40-310
E40 DESIGNED JOINTS IN IN-SITU CONCRETE
To be read with Preliminaries / General conditions.
310 FLEXIBLE WATERSTOPS
Safeguard Europe Ltd distribute Vandex Expaseal expanding waterstop. Vandex Expaseal is suitable for all construction joints subject to hydrostatic pressure. All joints to be waterproofed with Vandex Expaseal must be clean and free of surface water and sharp protrusions. The installation of Vandex Expaseal can be carried-out on damp surfaces. Vandex Expaseal is resistant to most form release products.
For joint widths of 20 – 40 cm, Vandex Expaseal is fixed in the middle of the joint. As a precaution, thicker walls can be fitted with two Vandex Expaseal waterstops. Vandex Expaseal is set into the joint with Vandex Uniflex Adhesive or mechanically fixed in the construction with nails (4 – 5 per linear metre). Consult Safeguard Europe Ltd technical literature for details. Safeguard Europe Ltd can also provide a design and specification service and it is recommended that they are consulted early in the design process.
16 × 21 mm
Adhesively fixed with Vandex Uniflex Adhesive / Mechanically fixed with 4 – 5 nails per linear metre.
Junctions and angles:
Form with junction pieces recommended by manufacturer.
Fully compact concrete around waterstops with no voids or porous areas.