Birnbaum-Saunders Durability Life Prediction Model of Site-Exposed Concrete in the Saline Soil Area

Table 2

Concrete mix ratio and physical properties (Kg/m³).

Cement	Fly ash	Coarse aggregate	Fine aggregate	Water	Water reducer	Compressive strength (MPa)	Slump (mm)	Strength grade
300	100	1155	664	170	6	32.2	170	C30
360	90	1167	634	158	9	41.1	170	C40
425	75	1173	647	150	13	54.3	175	C50