NCS was engaged to rehabilitate the concrete surfaces of the flocculation chamber at North Pine Water Treatment Plant, as part of a much-needed upgrade by SEQ Water. The concrete had lost approximately 10mm of fines, exposing the aggregate, and thus leaving the concrete vulnerable to further deterioration.

To fully understand the extent of deterioration, NCS used high-pressure water to remove all laitance and material to leave a sound finish. Approximately 1200sqm of the concrete surface was rehabilitated and reinstated to its original profile, providing not only re-assurance to the asset owner that the steel reinforcement within the structure is protected but also combining a surface that reduces ongoing maintenance and ultimately offering cost savings.