Table 1.
Main chemical composition of raw materials (%).
Table 2.
Different Red Mud Content.
Fig 1.
Flowchart of the experimental procedures.
Fig 2.
Compressive strength of different sodium silicate moduli (a) and different red mud contents (b).
Fig 3.
The 28-day compressive strength of various elemental ratios.
Fig 4.
The SEM images of RFG samples at 28 days (R00F100 (a), R30F70 (b), R70F30 (c), R30F70-1.2 (d), R30F70-1.8 (e) and R100F0 (f)).
Fig 5.
The TG (a) and DTG (b) curves of RFGP geopolymer.
Fig 6.
The FT-IR pattern of RFGP geopolymer.
Fig 7.
The XRD pattern of RFGP geopolymer.
Fig 8.
Schematic of RFGP geopolymer heavy metal solidification mechanism.
Table 3.
Leaching toxicity of RFGP geopolymer.