City Compliance Vehicles Pass Test
In controlling traffic movement and the quality of the
air, local authorities are setting ever stricter limits on
what is admissible in highway trucks.
One company, the UK based Premier Carriers, invest-
ed in what is believed to be the first flat-bed Mercedes-
Benz Econic, designed to go above and beyond current
Originally configured as a waste handling vehicle, the
26 t truck was supplied and specially adapted in just
eight weeks by S&B Commercials at Welham Green.
The truck underwent work to reinforce the load-bed
to create the flat-bed body. The dealership then made
changes to the original specifications and mapping of
the vehicle, including re-configuring both gearbox and
air suspension as well as undertaking a full inspection
of the electronics within the chassis.
After a complete repainting and updating of the cab,
the final act was the fitting and connection of the exter-
nal safety cameras.
Within days of delivery, the Econic started work de-
livering blockwork for use in the construction of two
new Ticket Halls at Crossrail’s Farringdon Station.
The entire Premier Carriers fleet and driver team is
now fully compliant with all the requirements of major
construction sites across the capital.
The rear-steer gives a tight turning circle for making
deliveries in restricted operational environments.
The need for such a vehicle was made clear when
the company was unable to make a one-off delivery to
a Crossrail site in central London using existing trucks
Leading The Way In
A ground-breaking new way to test the strength
of sprayed concrete has been successfully tested
at the London Bond Street Station underground
The project, a joint venture between Costain
and Laing O’Rourke on behalf of London
Underground Ltd, is the first in the world to test
the new technique in a production
The technique under test is
using Thermal Imaging (SMUTI), a
patent-protected invention created by Dr Benoit
Jones from Cambridge University.
It uses a thermal imaging camera to track the
temperature of concrete as it is sprayed to form the
tunnel lining. Knowing this temperature history enables
the engineers to calculate the amount of hydration that
has taken place in the concrete, and hence its strength.
It is a significant step forward for health and safety,
said Aled Davies, Costain Senior Tunnel Engineer who
has worked closely with Dr Jones on the trials.
“SMUTI allows us to directly monitor the
compressive strength development of sprayed
concrete whilst remaining at a safe distance.
This is a substantial improvement over the
current method, which relies upon a small test
panel being representative of the entire sprayed
concrete advance to prevent personnel being at
risk from sprayed concrete lining falls.”
In March, following extensive laboratory testing,
production trials began on-site. First, the concrete in
twelve sprayed concrete panels was tested simultane-
ously using the established in-situ tests and SMUTI.
This provided sufficient data to carry out trials in an
actual production environment and in March, the project
implemented the SMUTI system alongside existing test
methods for the first time.
Francisco Gallego, Section Engineer, uses a thermal
imaging camera to monitor a section of sprayed con-
crete lining within the Concourse 1 tunnel at Bond
Street Station Upgrade.
Contractors World International Vol 7 No 3
What’s New In Plant & Equipment