Bison is the UK’s leading producer of
structural, precast concrete products.
Consistent, quality control is vital to
maintain the company’s position at the
forefront of the sector.

Bison is particularly renowned for
prestressed elements, including hollow-
core floors, solid composite floors and
beams. Integral to the durability and
structural performance of these products
is the correct tensioning of the
prestressing steel tendons. There are
approximately 30 tendons in the average
1200mm-wide hollow-core floor slab.
These may be up to 160m in length.

The tendon carrier precedes the casting
hopper. It lifts the tendons to the
required depth in the slab so that
sufficient concrete cover is achieved
during casting.