BP	Back-propagation neural networks	BET	Specific surface area	$\eta$	Removal rate
FA	Fly ash	$\mathsf{\theta }$	Wetting angle	K	Immersion pulverization rate
RM	Red mud	$\mathsf{\zeta }$	Zeta potential	${\eta }_m$	Water absorption rate
SDBS	Sodium dodecylbenzene sulfonate	Q	Adsorption capacity
A2C	Aluminate cement	ST	Compressive strength