Concrete barrier challenge

The 5700C-Max unit from Power Curbers has now been used on a tricky shoulder widening job in New South Wales, Australia. The machine carried out the job close to Robertson in the Southern Highlands, about 1.5 hours drive to the south of Sydney. The job required the construction of a 200m long section of barrier, built to the requirements of the Roads and Traffic Authority (RTA). The contractor hand-formed the concrete shoulder as it was about 3m wide at the start and narrowed down to 1m at the end.
February 15, 2012 Read time: 2 mins
Using the new power curbers 5700-c with the Max package has allowed an australian contractor to slipform a barrier and shoulder for a road project

The 5700C-Max unit from 307 Power Curbers has now been used on a tricky shoulder widening job in New South Wales, Australia. The machine carried out the job close to Robertson in the Southern Highlands, about 1.5 hours drive to the south of Sydney.

The job required the construction of a 200m long section of barrier, built to the requirements of the Roads and Traffic Authority (RTA). The contractor hand-formed the concrete shoulder as it was about 3m wide at the start and narrowed down to 1m at the end. The road featured a steep bank on the run up to a bridge, which was why the section had to be upgraded to boost safety. The shoulder was made wider and a barrier wall installed to provide protection as far as the bridge parapet. Construction involved the use of some unusual techniques and the shoulder was excavated and then filled up with high density polystyrene. The concrete shoulder was then poured on top of this, with dowl bars set in the concrete for the wall to attach to. Once the wall was completed, the RTA used shotcrete on the back of the wall to seal off the polystyrene and blend it into the bottom of the structure.
Road Markings, Barriers & Workzone Protection Concrete milling, paving & compaction

For more information on companies in this article

Related Content

  • Brisbane's highway of distinction
    August 2, 2012
    A massive AU$2 billion update of the Gateway Motorway in Queensland is underway to improve an infrastructure stretched by population boom. Report and photographs by Adrian Greeman Just 20 years after the Australian city of Brisbane built its Gateway Motorway with a high slim signature bridge dominating the river skyline, the road is being completely revamped. Some 12km of urban route on the south of the Brisbane River is being expanded to take much increased traffic levels; the north is getting a completely
    Read More
  • Underground routes for highways
    July 20, 2012
    Increasingly, and where possible, roads are being built in tunnels often for environmental reasons, writes Patrick Smith As part of the new M7 motorway development in the southwest of Ireland, the four-lane route crosses the River Shannon near Limerick, before it flows into the Atlantic. Centrepiece of the 10km long Limerick Southern Ring Road is the required tunnelling (675m long), which including the north and south entrance and exit ramps, means it will be 915m long. Completion of the work is planned for
    Read More
  • Australian bridge slides into position
    July 18, 2012
    A heavy rail crossing as part of Australia's EastLink motorway demanded great ingenuity and careful planning Most of the 88 bridges on the EastLink tolled motorway in, Melbourne, Australia were kept as simple and straightforward as possible. Contractor Thiess John Holland (TJH) developed its own precast yard 150km from the city, which provided many of the prefabricated materials required for the structures. This offered speed and economy while logistics and sequencing were vital for their erection. But the
    Read More
  • Washington DC’s historic bridge replacement project
    June 11, 2019
    The project to replace a historic bridge in US capital Washington DC is providing major challenges for its builders - Mike Woof writes
    Read More

Highlighted Content