G bentonite

G bentonite is used in geotechnical engineering to make sealing barriers. It has a good anti-filtration performance and a high content of montmorillonite.

It is characterised by very good water absorption so it is subject to swelling. This makes it a common component of bentonite mats. To make them, a layer of bentonite granulate is placed between a fabric and a polypropylene fabric. Bentonite mats are used for constructing flood embankments, reservoirs and earth barriers, canals, railway subgrades and other structures.

Item Parameter G bentonite
1. Water content [%], max. 12
3. Swell factor after grinding [cm3/2g], min. 24
4. Montmorillonite content [%], min. 75
6. Sieve examination:
Mesh fraction content, over 4.00 mm [%] 0
Mesh fraction content, over 2.50mm [%], max. 1
Fraction over 1.00 mm [%], result 20 – 50
Fraction over 0.50mm [%], result min. 80
Fraction under 0.20 mm [%], max. 10
7. Water absorption, Enslin test [%], min. 500
8. Filtrate volume [ml] ≤ 18

Packaging method

21+2 kg paper bags, stacked on Euro pallet 1200×800 mm Big Bag, approx. 1000 kg Bulk in truck tanks Other types of packaging to be arranged


Detailed information can be obtained from our technical consultant:

Anna Glina
Implementation and Development Specialist

PHONE: +48 41 27 67 504

e-mail: anna.glina@zebiec.pl