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BENTOSUND 120E-TM® (Tunnelling)
Description
BENTOSUND® 120E TM is a 100% natural sodium bentonite wisely selected from our mine – completely polymer-free which, after a brief dispersion in water and an aging time of about 1/2 hours, shows a rheological reaction that guarantees highly colloidal suspensions which have excellent suspensive waterproofing and lubricating characteristics. Its usage is recommended for the preparation of the slurry in TBM shield.
| Typical characteristics at 5% concentration | ||
| Slurry Density | g/m2 | < 1,1 |
| Moisture | % | < 15 |
| Dry residue on 200 Mesh | % | 15-20 |
| GEL 0 | Pa | > 8 |
| GEL 10 | Pa | > 10 |
| API Yield Point – 24Hr maturation | Pa | > 10 |
| Bleeding – 24Hr maturation | % | < 1 |
| pH – 24Hr maturation | 7-11 | |
| API Fluid loss 24Hr – maturation | ml | < 20 |
| Cake – 24Hr maturation | mm | < 4 |
Specific advantages and benefits
- Eco-friendly
- Polymer free
- Very good filtration properties
- Strong Waterproofing and suspensive qualities
Application
BENTOSUND® 120E TM is specifically set-up for Tunnelling. It is suitable for all kind of soils.
Preparation
Mix with water using a high efficient mixer. To get best properties 24 hours of aging is required.
Packaging Bulk
Jumbo bags 1.1Ton & 25 Kg paper
Storage
Keep the product in a dry place and closed in original packing
