Evaluating the Dynamic Elastic Modulus of Concrete Using Shear-Wave Velocity Measurements

Table 4

Mean absolute error (MAE) of expressions relating static and dynamic elastic modulus.

Equation converting into	MAE (GPa)
	Line of equality	13.38	2.78	7.06	6.76
(1) (Lydon and Balendran [9])	8.11	1.19	2.87	2.63
(2) (British Standard Institute [10])	19.24	6.36	11.33	10.95
(3) (Popovics [11])	7.41	3.76	1.11	0.97
Best-fit line	1.05	0.82	0.84	0.85

Note. MAE is mean absolute error (=, where is the predicted values using the three proposed equations and is the measured values and is the number of specimens).