|
Bentonite Mud Plant
Typical Bentonite Properties
| Tests to be undertaken |
Fresh
Bentonite
|
Supplied
To Panel
|
Prior to
Concreting
|
| DENSITY (g/ml) |
1.025 ± 0.0005
|
1.02 to1.1
|
< 1.15 to 1.2
|
| FLUID LOSS (ml) (30min test) |
25 ± 5
|
< 30
|
< 30 to 40
|
| "CAKE" |
< 1 mm
|
< 3 mm
|
< 3mm
|
| VISCOSITY (Secs) |
32 to 35
|
32 to 40
|
< 40 to 45
|
| SAND CONTENT (%) |
n/a
|
n/a
|
< 3%
|
| PH |
7.5 to 10
|
7.5 to 11
|
7.5 to 11
|
| FREQUENCY |
Daily
|
Daily
|
Before Concreting
|
|