Overview
Civil Engineering grade bentonite is sodium based processed colloidal bentonite treated with polymers. Grades are customized according to meet rheological property to achieve desired marsh funnel viscosity.
Sodium Bentonite is suitable for Piling, Diaphragm Walling, Trenchless Drilling, HDD, Micro Tunneling & Shield Tunneling. Bentonite is grind to fine powder to form thixotropic gel allowing slurry to penetrating deep into cleavages cracks and clogging the pores. At lower dosages develops good suspensions as soil sealing and friction agent, also stabilizes the excavations
SPECIFICATIONS FOR CIVIL ENGINEERING GRADE BENTONITE POWDER
GRADE: PILEGEL 45
| Parameters | Specifications |
| 1. Marsh Cone Viscosity (6% conc. 1000/ 1 quart) | 45 sec. min |
| 2. Filter Loss | 15 – 17 ml |
| 3. Barrel yield | 110 – 140 bbl/ton |
| 4. Sand content | < 2 % |
| 5. Moisture content | 14% max |
| 6. Particle size < 200 mesh | 85% min. |
| 7. pH | 9.5 – 11.0 |
| 8. Liquid Limit | 400 – 450 min. |
| 9. Slurry Density | 1 – 1.20 gm/cc |
| 10. Montmorillonite | 75% min |
GRADE: PILEGEL 33
| Parameters | Specifications |
| 1. Marsh Cone Viscosity (6% conc. 1000/ 1 quart) | 33 sec. min |
| 2. Filter Loss | 20 ml max |
| 3. Barrel yield | 90 – 110 bbl/ton |
| 4. Sand content | < 2 % |
| 5. Moisture content | 14% max |
| 6. Particle size < 200 mesh | 80% min. |
| 7. pH | 9.5 – 11.0 |
| 8. Liquid Limit | 300 – 375 min. |
| 9. Slurry Density | 1 – 1.20 gm/cc |
| 10. Montmorillonite | 70% min |
NOTE: Mixing ratio is based on the fresh water purity. Water quality will affect bentonite performance.