Prestressed concrete technology has come a long way since some of the first patents only about 100 years ago. In this video we cover the basics of prestressing in contrast to traditionally reinforced concrete.

00:05 plain concrete
00:30 traditionally reinforced concrete
00:50 tension zones
01:10 pretensioned concrete
02:00 prestress calibration
02:15 shrinkage
02:50 high strength materials
03:15 posttensioned concrete
04:00 benefits and costs

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