The Slipform Paver
When considering traffic management for slipform barrier construction particular attention must be given to the route taken by concrete supply trucks and the location of the supply truck when discharging onto the slipform paver feed conveyor.
It is undesirable for supply trucks to reverse long distances or to have to turn around on site. The paver cannot stand for long without a supply of fresh concrete.
The mould comprises a hopper, vibration chamber and conforming section. Un-compacted concrete is deposited from the feed conveyor into the hopper. It is consolidated in the vibration chamber by a series of individually controlled variable frequency vibrating pokers that affect the degree of compaction. In basic terms less vibration is required for more fluid concrete in order to achieve correct compaction. As the slipform paver travels forward the conforming section shapes the consolidated concrete into the required profile. The careful balancing of concrete consistence, degree of vibration and travel speed is the key to successful slipform paving.