This product has a property of swelling in water and the
swelling index can reach from *5 to *0. What`s more, the
high-density colloids formed after expanding. have exclusive
performance of water. Due to this property , natural sodium
bentonite can be used as water-proof material in many fields. The
water-proof property of natural sodium bentonite is mainly embodied
in three fields. To be more specific, it has an anti-seepage effect
in the field of construction engineering municipal engineering,
subway, garden, artificial lake) and has anti-seepage effect as
well as corrosion resistant effect in the field of environmental
sanitation. Besides, it also has an anti-seepage effect in the
field of hydraulic engineering( reservoirs and dams of rivers or
lakes).
Physical chemcal index
Swelling index(mL/2g ) ≥ *0
Moisture content (%) ≤ 7
Mineral particles 0.**2 mm (%) >*8
Water absorbtion capacity after *4h(Enslin-Neff) (%) >
**0
