Activator HC is used largely in road stablisation for the activation and densification of concrete with high Portland cement replacement concretes significant benefits:

• Reduced shrinkage in PFA and GGBS modified concrete.
• Able to increase Portland cement replacement up to 95% in specific scenarios with PFA and/or GGBS.
• Increase impermeability of liquids.
• Resistance to chemical attack.

Activator HC is used as follows in constituted mix designs exhibit:

• Controlled concrete setting in high Portland cement replaced concrete.
• Increased impermeability and durability.
• Passivation of steel.
• Inhibits the reaction of unburnt or partially burnt coal within the Portland concrete matrix.
• Increased skid resistance of the surface.
• All weather traffic-ability of the surface.
• Elimination of common pavement failures due to heavy haul traffic, rutting, corrugating and potholes.
• Reduction in maintenance requirements to all roads (gravel and surfaced roads).
• Improved storm water management by making the road surface proud of   existing surface.
• A means of modifying the behavior of ash to form a stronger composite material.
• Environmental – sustainability and reduction in CO2.

Use in construction:

• Low water requirements
• Increased durability.
• Cost savings using conventional concrete.

As a road stabiliser, it can aid in:

• Dust control.
• Water-erosion control.
• Fixation and leaching control of both waste and recycled materials.

Activator HC is currently being used with ash to form the stabilized layer at Eskom’s new Majuba ash dump facility. In addition to the significant cost saving, there has been a saving of approximately 8,000 tons of Carbon Emissions.

• Activator HC with ash for road stabilization can result in a cost saving of up to 35%.
• Activator HC with ash for concrete applications can result in a cost saving of up to 15%.