| Testimonial
I would just like to extend, on
behalf of Macmahon and myself, our sincere appreciation
your company's support and effort during our Tiger Brennan
Drive Bridge Project. Through your assistance we have
managed to beat deadline and meet budget. Can you also
pass on my thanks to the guys in Adelaide for turning
around drawing changes so promptly, to allow us an uninterrupted
program. I look forward to working with you on our next
Bridge Project.
Yours sincerely
Graham Gust
Project Engineer – Structures
Macmahon Holdings Ltd - NT, Australia
The Tiger
Brennan Drive upgrade is currently the largest project
underway in Darwin, the project is estimated to cost
approximately $400 million by it’s completion in
June 2010. This is an exceptionally high profile project
and RMD Darwin’s participation is an important
step for the Darwin business.
The progress of this project
has been monitored by the Darwin sales team for more
than 18 months to ensure RMD’s
involvement. This commenced in late September 2009 with
supply of equipment to RMD’s client, Macmahon Contractors
Pty Ltd.
The project consists mainly of road construction, which
involves earth works, bitumizing roads and constructing
bridges. RMD Darwin will be supplying all the components
including shoring, wall formwork, columns, as well as
pier supports and headstock formwork for all three bridges
being constructed on this project.
The RMD Australia products being hired by Macmahon Contractors
are Super Slim Soldiers, Alform Beams, the Rapidshor
shoring system and also Rapidstage scaffolding including
tube and fitting. Products sold to Macmahon are Rapid
Bar Tie, ply, LVL timber beams and special brackets which
are being used for the diamond shaped piers required
on the cycle bridge component of this construction.
One element of the project is quite unique due to the
size of the wall being constructed and because it was
not poured in stages. The entire 52m long by 9m high
by 400mm thick wall was poured in one operation over
an eight hour period.
Macmahon Constructions requirement
was to have no horizontal cold joints in the wall,
which meant that the wall had
to be poured in one continuous operation. The 185m3 concrete
was poured by two concrete pumps operating simultaneously,
this had to be done to ensure that the concrete at the
bottom of the pour didn’t begin curing and hardening
before the rest of the pour, creating a substandard finish
when the shutters were removed. The RMD Australia Engineering
Department ensured this didn’t happen by calculating
the pour rates and extra strengthening required for the
bottom shutters required to provide consistent curing
and provide the client with a class two finish.
The pour was a success with no movement whatsoever in
the formwork and it provided an excellent finish.
|
