THIS year’s NZ Concrete Society Concrete Awards once again included a wide range of projects covering the scope of concrete applications. Several of the winning and highly commended projects utilised Golden Bay Cement product. We have featured here one of those projects.
Precast Concrete Products
Technology Award Winner - Firth Industries
This entry reflected advances in techniques for making internally baffled sewerage treatment tanks. These concrete tanks, which were previously produced using plastering techniques, have had their production process revolutionised by the successful use of stress fibre-reinforced, self compacting concrete.
The judges were especially impressed by the way in which this new concrete technology had been used to produce tanks efficiently, with an 80% reduction in labour content. The initiative required new moulds, specifically designed for casting the 50mm sections with the new mix design, with particular features that enabled easy casting and stripping.
Because the concrete requires no vibration, the moulds are subjected to minimal wear and are expected to last indefinitely.