Dynamic Modulus Prediction of a High-Modulus Asphalt Mixture

Table 2

Unary regression model and coefficients.

Independent variable	Unary regression model	Correlation coefficient (R)
X1	Y = 35502.845 − 786.361X1 + 6.488X1^2	0.849
X2	Y = −172489.497 + 5362.898X2 − 36.713X2^2	0.564
X3	Y = 5211.658 + 4034.071X3 − 265.446X3^2	0.417
X4	Y = 140874.692 − 16206.612X4 + 524.359X4^2	0.433
X5	Y = 45591.796 − 11.178X5 − 0.001X5^2	0.505