E5 Internal Cure is a nano-silica concrete admixture that provides internal curing by controlling the movement and evaporation of water within the concrete mix.
Added directly to the concrete at the batching plant, or into the back of the truck on site. E5 Internal Cure retains moisture where it is needed for continued cement hydration. Instead of relying solely on water applied to the finished surface, E5 cures the concrete from within the matrix, improving hydration, density and long-term concrete performance.
E5 Internal Cure can replace traditional wet curing and topical curing compounds. This eliminates curing blankets, surface applied chemicals and the labour, monitoring and construction delays associated with conventional curing methods.
The nano-silica technology increases the density of the concrete matrix, helping reduce permeability and improving resistance to abrasion, chemical attack and freeze-thaw exposure. E5 Internal Cure can reduce drying shrinkage and curling by up to 70%, producing flatter, more durable slabs with a reduced risk of cure-related cracking.
E5 also improves concrete pumpability, workability, placement and finishability. It gives concrete finishers greater control in challenging conditions without requiring additional water to be applied to the surface.
E5 Internal Cure is suitable for industrial floors, commercial slabs, pavements, structural concrete and civil infrastructure. It can be incorporated into most concrete mix designs without changing standard placing and finishing practices.
CANZAC supplies E5 Internal Cure throughout New Zealand and provides dosage calculations, concrete mix guidance, specification assistance and technical support.
DOSAGE
The standard E5 Internal Cure dosage is:
0.26 litres per 100 kg of cementitious material
SPECIFICATION TEXT
FOR YOUR PROJECT PLANS
Copy and paste this specification text into your plans.
SPECIFICATION TEXT:
Product details: E5 Internal Cure nano-silica concrete admixture added at the specified dosage rate and in accordance with CANZAC instructions.







