Foundry Grade Bentonite
Foundry Grade Bentonite
Foundry Grade Bentonite Powder:
Physical Analysis:
| PROPERTIES | PROTOCOL | RESULT | |||
|---|---|---|---|---|---|
| Normal Bond | Insta Bond | Super Bond | High Bond | ||
| Free Swelling Volume 2 gm/100ml | ml | 20-22 | 24-25 | 28-30 | 32-35 |
| Methylene Blue Absorption Value | mg/gm of clay | 325-350 | 375-400 | 375-450 | 400-450 |
| Gel Time 2.5gm/25 ml | second | 1 min | Instant. | Instant. | Instant. |
| Gelling Index | ml | 80-90 | 80-90 | 85-90 | 85-90 |
| Moisture Content % by weight | % | 12%MAX | 12%MAX | 12%MAX | 12%MAX |
| PH Value 2% slurry | pH | 9.0 - 10.0 | 9.0 - 10.0 | 9.5 - 10.0 | 9.5 - 10.0 |
| Green Compression Strength Bentonite : Water :10:4 55-60 A.F.S Sand | psi | 12 | 12 | 12.5 | 12.5 |
| Passing 200 mesh | % | 75-80 min | 75-80 min | 75-80 min | 75-80 min |