Hollow-bar nails
Hollow-bar piles consist of three main components: the pile head, the steel tendon or compression member – including coupler and single-use drill bit – and the grout body. The steel tendon or compression member is a hollow steel bar with cold-rolled round thread and can therefore be cut or joined at any point.
Structure
Hollow-bar nails consist of three main components:
- Nail head
- Steel tendon – including coupler and single-use drill bit
- Grout body
The steel tendon is a hollow steel bar with cold-rolled round thread and can therefore be cut or joined at any point.
Features
- Nationally approved system with internal and external quality control
- Easy to adapt to transport and assembly conditions due to delivery in sections with couplers
- A large range of drill bits permits use in a wide variety of soils.
- Easy to adjust to the required length on site, e.g. for varying geological conditions, by using sections with couplers
- Excellent bond between the SHS bar and cement mortar thanks to the use of thread ribs
- Easy to adapt to the required loads thanks to a wide range of cross-sections
- Fast completion of construction work thanks to the pile being drilled, installed and grouted in a single operation
Structural variants
– Short-term nail (for temporary use)
– Short-term nail (service life up to 2 years)
– Permanent nail, hot-dip galvanised, allowing for a soil-dependent corrosion rate (service life up to 50 years)