Effect of Calcined Hard Kaolin Dosage on the Strength Development of CPB of Fine Tailings with Sulphide
Table 3
Mix proportions and partial properties of CPB mixture.
Number
Mix proportions
Partial properties of CPB mixture
Tailings slurry /g
water /g
PC /g
CHK /g
RL /%
Solids content /wt.%
Water to cement ratio/%
Wet density /(kg/m3)
Slump /mm
1
1000
92.5
157.5
0
0
63
58.7
1785
185
2
1000
92.5
133.9
23.6
15
63
69.1
1785
180
3
1000
92.5
110.25
47.25
30
63
83.9
1795
180
4
1000
92.5
78.75
78.75
50
63
78.8
1815
175
Tailings slurry has 63 wt.% solid concentration; RL is CHK replacement to PC. Binder (including PC and CHK) dosage is kept constant at 20 wt.% of total solids.
