Applications of Gene Expression Programming for Estimating Compressive Strength of High-Strength Concrete

Table 3

Range of input and output variables.

Parameters	Abbreviation	Minimum	Maximum
Input variables
Cement	CEM	160	600
Fine/Coarse aggregate ratio	F/C ratio	0.23	2.1
Water	W	132	302.08
Superplasticizer	SP	0	12
Output variable
Compressive strength	Fc	39.5	91.3
Predicted compressive strength	Fc	38.33	92.8