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|
|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
- Polymer free
- Very good filtration properties
- Strong Waterproofing and suspensive qualities
BENTOSUND® 120E TM is specifically set-up for Tunnelling. It is suitable for all kind of soils.
Mix with water using a high efficient mixer. To get best properties 24 hours of aging is required.
Jumbo bags 1.1Ton & 25 Kg paper
Keep the product in a dry place and closed in original packing