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Left: Paving Machine, Front View.
This is a view of the front of a typical
self-propelled, floating screed, paving
machine. Tip trucks discharge the hot
asphalt into the front hopper and it is
then conveyed to the rear of the machine
by a chain and slat conveyor.
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| Right: Paving Machine, Rear View.
This picture shows a truck with its tray
tipped, discharging mix into the paver.
The operator sits on top and steers the
machine to the required alignment.
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Left: Screw Auger.
After the mix is conveyed beneath the
machine by the conveyor, it is spread
laterally across the whole width to be
paved by screw augers, in front of the
screed.
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| Right: Screed Unit.
The screed unit consists of levelling arms,
a screed plate which vibrates to act as a
tamper, and thickness controls. It is
supported by the mix which gives it a
floating action.
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Left: Reference Beam Attached to
Paver.
A long moving reference beam, mounted
on shoes (or skis) can be used to ensure
the screed follows a smooth line
regardless of irregularities in the surface
being paved.
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