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POST-TENSIONING IN BUILDING STRUCTURES Ed Cross1 BE, Grad.Dip(Tech.Mgt), MIEAust, CPEng ... The A.C.I. Committee on Prestressed Concrete gives one of the most apt descriptions of post-tensioned concrete. `Prestressed Concrete is concrete in which there have been introduced internal forces ... Freyssinet C Range multi-strand anchorage

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Post-tensioning A pioneer in prestressing, Freyssinet now offers a cutting-edge post-tensioning system combining performance and durability. Freyssinet’s technical services design anchors, jacks and installation equipment, and also operate a test centre and a laboratory for the formulation of grouts.

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As post tensioning is becoming more popular in developing countries, we are seeing an upward trend in prestressed concrete structure design. Just 20 years ago, prestressing seems to be a taboo in these developing countries.

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1939 for the invention of the concrete anchorage [parallel wire system of cables, tensioned by special jacks, and locked-off by anchor cones] (this is the birth of post-tensioning). It was Freyssinet’s spectacular rescue of the Le Havre Maritime Station in 1934, where

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