Tag Archives: american concrete institute
History of the Post-Tensioning Manual
Currently, the Post-Tensioning Manual is in its 6th Edition (2006, first printing) and is published by the Post-Tensioning Institute (Technical Advisory Board committee). The Prestressed Concrete Institute (Post-Tension committee) published the 1st edition of the Post-Tensioning Manual in 1972. Thereafter, the Post-Tensioning Institute published … Continue reading
Unbonded Post Tensioning Checklist for Corrosion Prevention
Due to recent events in the Post-Tensioning industry, AMSYSCO has taken the initiative to develop a checklist to address corrosion of unbonded post-tensioning. The checklist relies on existing industry documentation. (Disclaimer(s): AMSYSCO, Inc. was not, or is, involved with the referenced project. This checklist … Continue reading
Material Properties of Post-Tension Strands
The following is a list of basic formulas for 270 ksi, 7-wire Prestressing steel strand (per ASTM-A416) used in Post-Tensioned concrete. _______________________________ Assume 0.5″ diameter strand has cross-sectional area of 0.153 sq.in. and weight of 0.525 lbs/ft. Assume 0.6″ diameter strand … Continue reading