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This short video show the stressing an unbonded post-tensioning tendon with a hydraulic jack (8-inch stroke). This tendon was roughly 130 feet long so it required two strokes. The elongation for a 100-foot-long tendon is roughly 8 inches. Refer to the Post-Tensioning Institute’s “Field Procedures Manual for Unbonded Single-Strand Tendons” Chapter 6 for additional information.
Copyright © 2011 by AMSYSCO, Inc. All rights reserved.
This short clip shows how to apply paint-marks prior to stressing of post-tension tendons. It’s recommended to use a straight-edge, metal to help with elongation measurements. Refer to the Post-Tensioning Institute’s “Field Procedures Manual for Unbonded Single-Strand Tendons” Chapter 7 for additional information. Copyright © 2011 by AMSYSCO, Inc. All rights reserved.
PC Strand is a high-strength steel cable used in Post-Tensioned concrete. This video shows the PC Strand prior to the plastic extrusion process (unbonded PT).
Copyright © 2011 by AMSYSCO, Inc. All rights reserved.
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