In continuous bridge deck construction, it is necessary to extend prestressing cables as construction proceeds. The CCL Anchorage Coupling is available in all 12, 19, 27 & 37 strand configurations. The first stage of stressing is carried out in the same way as with the Standard Anchor except that a Coupler Ring is inserted between the Tube Unit and Bearing Plate. The Coupler Ring incorporates slots to accommodate the Compression Fittings swaged to the strands of the second stage cable. When first stage stressing and grouting is complete, the Compression Fittings are swaged to the strand using the Extrusion Rig and the strands are fitted into the slots of the Coupler Ring. The strand is deviated through a shaped trumpet that also prevents the ingress of concrete during casting. The trumpet contains a grout exit point which should be placed at the top to prevent any air being trapped during grouting and the small end of the trumpet should be securely taped to the duct.
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