Flexural Behaviour of Unbonded Posttensioned Concrete Beam Strengthened with Aluminium Alloy Plates

Table 2

First failures of test beams.

No.	Ultimate flexural capacity (N/mm^2)	Height of crushed zone of concrete (mm)	Ultimate deflection of midspan (mm)
AL1	180	50	139
AL2	204	50	90
AL3	200	40	67
AS1	84	50	120
AS2	104	50	106
AS3	118	70	90