ISCHEBECK TITAN'S new geotextile sock anchor is designed to provide anchorage in ground such as soft chalk and fissured limestone, where cavities or fissures would result in excess grout loss and poor holding power using conventionally grouted bolts.
The system comprises the company's Titan tendon system covered with a geotextile sock that prevents grout loss. As the sock fills, it moulds itself to the contours of any voids or cavities in the vicinity of the borehole. It can be varied in size for specific job requirements and its fabric allows excess moisture through while remaining impermeable to cement fines, resulting in a rapid curing cement with an optimum water/cement ratio.
Ischebeck claims the system is cost effective in ground conditions that might otherwise require expensive grout strengthening.