Technology - C-Twelve

Building the Next Generation of Road Infrastructure

Traditional road construction relies heavily on energy-intensive materials and processes. At C-Twelve, we’ve developed a different approach—combining proprietary emulsion chemistry with engineered carbon technology to create road construction materials that deliver exceptional performance while supporting more sustainable infrastructure outcomes.

Our technology has been developed to improve pavement durability, optimise material performance and permanently lock carbon into road infrastructure, creating roads that are engineered to last longer while reducing environmental impact.

Close up of man holding pieces of waste shredded rubber

What is Engineered Carbon?

Engineered carbon is a high-performance carbon material produced from renewable biomass and organic waste streams through a carefully controlled thermal conversion process.

Rather than allowing this carbon to return to the atmosphere as carbon dioxide through decomposition or burning, the material is converted into a stable carbon structure that can be incorporated into civil infrastructure.

When combined with C-Twelve’s proprietary technology, engineered carbon becomes an active component within the pavement matrix, contributing to improved engineering performance while storing carbon within the road throughout its service life.

View of The First Three Paving Runs Bunker 7

How Our Technology Works

Proprietary Emulsion Technology

Our specially developed emulsion system is designed to maximise adhesion between aggregates and binders while improving workability during application.

Engineered Carbon

Engineered carbon features an exceptionally high internal surface area and porous structure, allowing it to interact efficiently with surrounding binders.

Covalent Bonding Process

Our proprietary bonding process enables the engineered carbon and emulsion to work together within the pavement structure, creating a stronger and more durable composite material than conventional cold mix systems.

Why Engineered Carbon Improves Pavement Performance

Unlike traditional fillers, engineered carbon actively contributes to pavement performance. The microscopic porous structure helps improve binder interaction throughout the asphalt matrix, which can contribute to:

Improved aggregate bonding
Greater resistance to moisture damage
Enhanced flexibility under repeated traffic loading
Reduced susceptibility to cracking
Better long-term pavement durability
Improved workability during installation

The result is a pavement designed to perform reliably under demanding Australian operating conditions.

Carbon Stored Within Infrastructure

One of the unique advantages of C-Twelve’s technology is that the engineered carbon remains physically incorporated within the finished pavement.

Instead of carbon being released into the atmosphere, it becomes part of the road itself.

This allows road construction to become part of a broader carbon management strategy while simultaneously improving pavement performance.

Why Cold Mix Technology?

Cold mix asphalt eliminates many of the energy-intensive processes associated with traditional hot mix production.

When combined with engineered carbon technology, C-Twelve materials provide benefits including:

Lower energy requirements during production
Reduced reliance on fossil fuel heating
Easier transportation and storage
Faster deployment for maintenance works
Safer application with solvent-free formulations
Reduced disruption during road repairs

These advantages make C-Twelve particularly well suited to councils, road maintenance contractors and asset owners looking to reduce whole-of-life costs while improving sustainability outcomes.

Benefits of Engineered Carbon in Cold Mix Road Surfacing

Improved mechanical strength

Cheaper per square metre

Reduces harm to the environment

Carbon negative solution

C-12 Plus is an advanced soil stabilisation solution designed to improve the performance, durability and sustainability of road infrastructure. By combining engineered carbon with proprietary emulsion technology, C-12 Plus strengthens in situ materials, creating longer-lasting roads while reducing material consumption, construction costs and environmental impact.

C 12 Plus

The use of engineered carbon in Cold Mix Road Surfacing products has several advantages.

F.A.Q.

What is engineered carbon?

Engineered carbon is a carbon-rich material produced through pyrolysis, a process that converts biomass into a solid residue by heating it in the absence of oxygen.

How is engineered carbon used in cold mix for road surfacing?

Engineered carbon is integrated into the asphalt mixture, improving road stability, strength, and water drainage, while reducing rutting and cracking.

What are the benefits of using engineered carbon cold mix?

Using engineered carbon enhances road durability, reduces maintenance needs, improves skid resistance, and contributes to sustainable practices and carbon sequestration.

How does engineered carbon make road construction sustainable?

Engineered carbon reduces the carbon footprint of road construction by acting as a substitute for traditional aggregates and offers long-term carbon sequestration potential within the road infrastructure.

Why choose engineered carbon in C-12 BLACK?

Utilising engineered carbon promotes environmentally friendly road construction, increases road lifespan, and reduces costs through improved performance and sustainability.