WEDGES:
Live Wedges & Master Wedges In Pre-stressing Is Critical Component Of Bonded As Well As Un-bonded Post Tension System Because Once The Casted Concrete Attains Sufficient Strength Pre-stressed Concrete Strand Is Stressed With The Help Of Hydraulic Stressing Jack And Pump. Once The Specified Pre -stressing Force Applied To Pre-stressed Concrete Strand This Force Is Transfer To Concrete Through Anchor Head And Live Wedges System.
Live Wedges Can Be Used For Single Time Only And It Will Be The Permanent Part Of Anchorage System Once Stressing Procedure Has Been Done. While Master Wedges Is Used In Stressing Jack For Stressing Purpose. Master Wedge Is Design To Use Multiple Times. Master Wedges Have A Huge Application In Pre Tensioning Because Of It’s Multiple Time Usage. Live Wedges As Well As Master Wedges Suitable For 3 Mm, 4 Mm, 5 Mm, 12.7 Mm, 15.2. 3 Segmental Wedges Mainly Use In Bonded Pre-stressing System.
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