Skip to main content
International Journal of Concrete Structures and Materials

Table 2 Summary of equations for best fit lines and goodness of fit (R-squares).

From: Seasonal Variation and Age-related Changes in the Relative Permittivity of Concrete Bridge Decks on Korea Expressways

Weather factor

Old bridges

Best fit lines

R2

Monthly mean temperature

Y = 0.0025X + 8.17

0.02

Monthly mean rainfall

Y = 0.0056X + 7.89

0.11

Monthly mean wind speed

Y = − 1.47X + 12.14

0.07

Monthly mean relative humidity

Y = 0.066X + 4.81

0.43

  1. X each weather factor and Y relative permittivity of concrete.
Back to article page