Bentonite clays have high absorption properties and after moistening obtain high water-retaining properties. Owing to these properties bentonite is efficiently used in:
- waterproofing works in building underground structure;
- creation waterproofing walls, during burial of domestic and industrial waste;
- sewage treatment;
- waterproofing of reservoirs;
- drinking water treatment;
- pollution absorption.
Bentonite clay, bentonite powders or bentogranules are used separately or in mixture with ground or sand. The consumption of bentonite depends on ground waterproofing and is from 5 to 50 kg/m2