High-strength, fiber-reinforced cementitious patching mortar, enriched with polymers. It provides:
- Superior strength
- Very good bonding to the substrate
- Excellent workability
- Reduced water permeability
- Volume stability
It is classified as a CC R4 mortar for concrete repairs, according to EN 1504-3. Certificate Nr. 2032-CPR-10.11. MEGACRET-40 has received an Environmental Product Declaration (EPD) following an assessment of its life-cycle environmental impacts. Registration No: S-P-06172, The International EPD System.
MEGACRET-40 is suitable for highly demanding repairs inconcrete elements. It is applied with a trowel or pneumatically with a gunite process on floors, walls or ceilings.
Substrate preparation
The substrate must be free of dust, grease or any foreign matter. Before application, the substrate has to be thoroughly dampened.
Application
One 25 kg bag of MEGACRET-40 is gradually added into 4.60 kg of water under continuous stirring, until a homogenous, tight mass is formed, appropriate for repair works. Either a low-speed mixer or a concrete mixer could be used for the mixing. The material should be applied (pressed) in the desired thickness-up to 4 cm per layer with a trowel or pneumatically with a gunite process. When a second layer is required, the surface of the first layer should be roughened, to achieve better adhesion. The final surface should be well protected from dehydration by being covered with wet clothes or polyethlene sheets, or repeatedly dampened for 48 hours.
