|
items\Type
|
Calcium Base Bentonite
|
|
Methyl biue absorption g/100g ≥
|
30
|
|
|
Colloid value % ≥
|
55
|
|
|
Swelling value ml/g ≥
|
12
|
|
|
PH value
|
6.5-7.5
|
|
|
Hot wet compressive strength gf/m2 ≥
|
18
|
|
Hot tensile strength kg/cm3 >
|
0.49
|
|
|
Moisture% ≤
|
12
|
|
|
Montmorillonite content % ≥
|
65
|
|
|
Fineneess(pass 200mesh screen) ≥
|
95
|
|
chemical composition (%) (approximately)
|
element
|
SiO2
|
AiO3
|
Fe2O
|
P2O3
|
CaO
|
MgO
|
K2O
|
|
content (%)
|
55-70
|
12-18
|
1-3
|
0.01
|
2-5
|
2.5-3
|
0.7-1.7
|
CALCIUM base bentonite data as follows:
