As well as piling we are happy to price and carry out installation
of reinforced concrete ground beams.
These are the most typical method of linking the piles together
and more common than a piled raft/slab. The purpose of the ground
beam is to link the piles together and provide a platform for further
superstructure construction. Excavation work is carried out immediately
or a short while after the completion of the piling work and are
excavated to the engineers specification and to the level supplied
by the client. The excavation then commonly has a layer of void
former placed at the bottom. A void former is a compressible or
degradable layer which will create a void between the ground and
the underside of the beam to stop any pressure on the footings caused
by ground heave.
Common forms of void former are Cellcore, Claymaster and Clayboard.
Reinforced steel cages are then placed in the excavation using
grade plate spacers, commonly known as chairs, which ensure the
engineers specified gap between the void former or side of excavation
and the reinforced steel bars. The excavation is then flooded with
concrete and 7 days later is ready for building on.