Our case studies highlight significant projects successfully completed by Roundel in recent years.
Nexus Delivery
(Acciona – Ferrovial Agroman J.V.)
A significant highway project
bypassing the town of Toowoomba, QLD.
2018 – 2019
Our scope of works consisted of the on-site production of 300 tonnes of HPL PE-coated steel culverts to reline pre-cast concrete culverts, originally specified, that were failing. Roundel designed the lining system considering the live loads as per AS5100, together with high dead loads due to the heights-of-cover involved. Our design assumed no support from the existing concrete culverts. The steel culverts were internally coated in HPL PE materials to ensure the 100-year requirement was fully satisfied. The materials were approved for use by Transport & Main Roads (TMR), QLD.
The steel culverts were pulled into position, centred on wood battens, and the annulus between the new steel culverts and the original concrete was filled with injected / pumped grout.
