Post Tensioning of Building Slab

This is a good video showing step-by-step procedure of a building post tensioning slab. These are some of the main steps shown in this video.

• PC Strand preparation, into a uncoiler.
• Cutting the PC strand into desired length and pack them according to tendon size / configuration.
• Forming Fixed Anchors (Dead End) with the use of a Bond Head Machine.
• Positioning the Anchors on formwork with pocket former.
• Installation of galvanised steel duct and Bursting Reinforcement.
• Stranding.
• Securing the Fixed Anchors.
• Positioning of Bar Chairs to achieve desired tendon profile.
• Installation of Grout Vents to tendon.
• Concreting.
• Removing pocket former and installing of Anchor Head & Wedge in preparation for Stressing.
• Marking of PC Strand length for elongation reading (after stressing).
• Stressing using hydraulic Mono Stressing Jack.
• Checking for desired PC Strand elongation.
• Removing excess PC Strand and covering up recess pocket.
• Preparation of Grout material.
• Grouting of tendon and job completion.