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Ultrasonic Pulse Velocity

Ultrasonic Pulse Velocity. British BS 1881, Testing Concrete Pt 203 USA ASTM C597 (less comprehensive). Crack Depth. C = b*. Example with TICO. For inclined cracks. Shape of time t. b. b. Influence by Temperature. Air dry concrete Saturated concrete.

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Ultrasonic Pulse Velocity

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  1. Ultrasonic Pulse Velocity • British BS 1881, Testing Concrete Pt 203 • USA ASTM C597 (less comprehensive)

  2. Crack Depth C = b* Example with TICO For inclined cracks Shape of time t b b

  3. Influence by Temperature Air dry concrete Saturated concrete Higher temperature, higher sound velocity between 0 and 30 Grad C only about +/- 1 % Below zero high influence

  4. Method of Test Ref Tam (1991) 3 Ln2=L02+nk2L02 kL0 2 Ln=L0(n2k2+1)0.5 kL0 1 Transmitter kL0 Receiver Positions 0 kL0 For k=1 N Ln/L0 1 1.414 2 2.236 3 3.162 1 kL0 2 kL0 3

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