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