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Centrifugally Cast Concrete Relining

BHP Culvert Remediation Phase 4

Aaro experts were on hand to refurbish a culvert at BHP's Yandi Mine, that if it had collapsed could have been costly to their operations.

Aaro were engaged by BHP to structurally refurbish a three-barrel, DN2700 Corrugated Steel Pipe (CSP) on the MAC Line, near BHP’s Yandi Mine Site.  The culverts had corroded over time and needed to be refurbished to extend their life and avoid replacement.

To refurbish the culverts, Aaro first grout filled the heavily deteriorated sections that had resulted in voids in the culverts.  Then CentriPipe, a Centrifugally Cast Concrete Spray product imported from America under our licensed partnership agreement, was applied to the entire culvert. A total of 157t of CentriPipe was applied to the three culverts.

Aaro were successful in completing the works on-time, on budget and to a high standard.  BHP commended Aaro for their project planning, on site supervision and overall ease to deal with throughout the duration of the project.





Yandi, WA

Project Duration

1 month

Project Start

April 2021

Project Finish

May 2021


We’re proud of our achievements. Read about our recent projects and case studies to see what we’ve been working on and how we could work with you.

$1m50 Year Design Life on 5.75m Tunnel RefurbishmentCentrifugally Cast Concrete Relining
We were asked to structurally reline a 5.75m diameter multi-plate culvert and were able to provide the client a cost saving alternative and still achieved the 50 year design life requirement.
Pilbara, WA

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