Concrete and Flexible Pavement Solutions
Ternary Group provides concrete solutions from pathways to ports.
Our services also include installing the eco-friendly Rombus grid that is faster to install, requires less concrete, and still boasts of strength and structure.




Ternary Group Are Rombus Official Distributors and Installers
Concrete Competencies
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Site Supervision
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Project Management
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Building Foundations
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Concreting
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High-rise
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Low-rise
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Multi-level
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Commercial
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Civil
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Steel Fixing & Form Work
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Wind Farm Foundations
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Rombus Official Installers






Revolutionising The Basics
Roading, Footpaths, Slabs, and anything else that need Concreting
Ternary Group takes on the role of a dependable contractor, specialising in roading, footpaths, car park projects and more. With a profound understanding of infrastructure development, we seamlessly execute projects that enhance mobility, safety, and accessibility within communities. Our commitment to excellence extends to introducing innovative solutions that redefine traditional norms, such as the ground-breaking "Rombus" system.
What is Rombus?

The Rombus System is a patented plastic grid that provides strong reinforcement and structure that replaces the typical steel framing needed in concreting.
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So effective is the engineered design of the grids that only 40mm thick concrete is needed as opposed to the standard 100mm.
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The simple nature of the 'click' into place structure means there is no skilled labour required to construct the base. Once filled, the Rombus grid can hold 10,900 tonnes per m2. Even without it filled a concrete truck can drive straight onto the grid removing the need for a second pumping machine.
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The grids are so versatile they can also be filled with gravel, dirt, or sand, depending on the need.
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With Rombus, you can easily perform in situ placement and grid filling, saving you significant time and trouble compared to full-depth repairs.
Enjoy a dust-free, gravel-free wearing a course that outperforms traditional options with Rombus.
100% Australian Made
Rombus is designed, manufactured, and owned in Australia.
Faster
Our incredibly versatile grid is easily deployed, installed and can be removed in situ for any unforeseen subsurface repair. It can easily be used as a drainage solution within a pavement by using permeable aggregates in nominated areas.
Cost-Effective and Cost-Competitive

The Rombus grid is modular and clips together requiring no skilled labour.
Faster installation times reduce construction schedules, improving deadlines and increasing productivity.
Environmentally Positive
Passionate about industrial sustainability, we use 5.4kgs of 100% locally sourced recycled plastic per m2, and at only 40mm thick we reduce the amount of concrete needed and associated carbon emissions.
Very Strong
Once filled, the Rombus grid can hold 10,900 tonnes per m2. Even without it filled a concrete truck can drive straight onto the grid removing the need for a second pumping machine.
Flexible Design
It is manufactured in panel sizes of 1 m x 1 m by 40 mm thick - which allows the width and length of each grid to be extremely adjustable and customisable, fulfilling a wide array of design needs and requirements.