The Measurement of P-, S-, and R-Wave Velocities to Evaluate the Condition of Reinforced and Prestressed Concrete Slabs

Table 1

Information on the prestress strand.

Tendon type	Diameter (mm)	Area (mm^2)	Elongation (%)	Tensile strength (MPa)	Jacking force (kN)
SWPC7B	12.7	98.7	3.5	1860	128.5