Predicting Carbonation Depth of Prestressed Concrete under Different Stress States Using Artificial Neural Network

Table 1

Mix proportion of concrete.

Grade	W/C	Cement (kg/m^3)	Water (kg/m^3)	Fine aggregate (kg/m^3)	Coarse aggregate (kg/m^3)	Water reducing admixture (%)	28-day compressive strength (MPa)
C40	0.40	450	180	672.6	1097.4	0.45	42.4

Note that W/C is the ratio of water to cement in 1 m³ concrete.