Prediction of Compressive Strength of Concrete in Wet-Dry Environment by BP Artificial Neural Networks

Table 7

Mix design of raw materials.

Grades	Raw materials (kg/m^3)
	Cement	Silica fume	Water	Sand	Coarse aggregate	Gravel	Water reducer
C30	375	—	200	750	675	450	—	0.53
C50	450	—	156.1	675	675	450	2.0	0.35
C80	514	57	141.65	684	615.6	410.4	9.5	0.26