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Slide 2 Slide 3 SCIENTIFIC CIRCLE of PRESTRESSED CONCRETE Slide 4 how used to be Walnut Lane Memorial Bridge, USA, 1950-51 Slide 5 a few words about what prestressed concrete is method for overcoming concrete's natural weakness in tension Slide 6 how it works? load deflection tension of steel compression of concrete deflection Slide 7 methods of realizations PRE tensioned POST tensioned Slide 8 our activities knowledges propagation Slide 9 our activities preparing projects Slide 10 our activities cooperation with builders Lesser Polands Laboratory of Passive Building Slide 11 our activities scientific conferences and presenting paper Slide 12 our activities educational trips Slide 13 nowadays none of spectacular construction could be done without prestreesed concrete Slide 14 so who WE are? Slide 15 We are young people who want to change impossible into reality Slide 16 Slide 17 Slide 18 Slide 19 Slide 20 Slide 21 Slide 22 Slide 23 scientific circle of prestressed concrete Cracow University of Technology, POLAND