BENTONITE CHIP
Advantages High swelling capacity in the presence of fresh water No heat of hydration Re-hydratable After hydration, forms a semi-solid, flexible seal with permeability less than 1 x 10-8cm/sec
Application Seal or grout plastic or steel casing Isolate screen intervals, subsurface instrumentation and sampling zones Provide a protective interface between gravel pack and cement grout Plug abandoned earthen boreholes and cavities Create a stable, permanent, low permeability below-grade seal in :
-monitor/observation wells
-dewatering holes
-caisson holes
-soil sampling holes
-mineral exploration holes
-water wells
Specification
| Water absorption | >300% |
| Density/ml | 0.75-1 |
| Moisture Content | <8% |
| Dust Content | <0.5% |
| Particle Size | 0.5mm, 1~5mm |
| Shape | Chip |
