Concrete Mix Design for Service Life of RC Structures under Carbonation Using Genetic Algorithm

Table 4

Mix proportions for CO₂ diffusion measurement [14].

(a)

Case	w/c; (%)	Cement; (kg/m^3)	Water; (kg/m^3)	Sand; (kg/m^3)	Coarse aggregate; (kg/m^3)
1	42	425	179	714	895
2	50	315	158	748	1,076
3	58	277	161	726	1,117

(b)

Aggregate properties
Type	Specific gravity	Absorption (%)	Fineness modulus
Fine	2.56	2.18	2.85
Coarse	2.60	0.94	6.51