Table 3 Correction for temperature and humidity in the peak conductance and peak frequency shift.

From: In situ strength assessment of rapid set concrete in real time using resonant peak parameters of embedded PZT transducers

 

Humidity →

Temperature ↓

40%

50%

60%

70%

80%

90%

Correction for Peak Conductance Shift

10 °C

−0.075

−0.034

−0.009

−0.030

−0.069

−0.075

20 °C

−0.008

0.000

0.049

0.036

0.029

0.000

25 °C

0.039

0.058

0.075

0.061

0.054

0.000

30 °C

0.115

0.116

0.100

0.085

0.080

0.000

40 °C

0.106

0.164

0.178

0.186

0.189

0.192

50 °C

0.179

0.301

0.313

0.320

0.329

0.342

60 °C

0.488

0.480

0.475

0.439

0.421

0.400

Correction for Peak Frequency Shift

10 °C

−0.010

0.019

−0.020

0.002

0.012

0.018

20 °C

−0.012

0.007

−0.011

−0.008

−0.008

0.001

25 °C

−0.014

−0.016

−0.012

−0.010

−0.010

0.000

30 °C

−0.016

−0.016

−0.014

−0.013

−0.012

−0.001

40 °C

−0.015

−0.025

−0.031

−0.031

−0.032

−0.033

50 °C

−0.029

−0.055

−0.055

−0.057

−0.061

−0.061

60 °C

−0.079

−0.079

−0.078

−0.078

−0.075

−0.072