- Mix Proportions
Our self levelling screeds is designed for minimum depts of 25mm. We use small size course aggregates together with fine aggregates with properties to prevent shrinkage. The course aggregates improves abrasion resistance and drying shrinkage. The Mix ratio produces a platic, highly flowable but cohesive mix to the consistency of paint. Preperation, application, curing and sealing of these products normally is performed by experienced applicators with the correct technical skills to install these screed floors or to do repairs.
- Compressive strength:
Our Self levelling screeds range from 20 - 45Mpa. If higher compressive strengths are required, special arrangements and considerations needs to be taken to design the screed concrete to perform optimally.
- Drying Shrinkage:
Drying shrinkage cracks is a concern, but due to more controlled ambient environments, protection from the elements and the latest in additive technology the risk is minimised.
Although self levelling screeds due to high density is less permeable, it is still advisable to seal the screed with a proprietary sealant. This protects the thin screed layer from chemical attack.
- Abrasion Resistance
Self levelling screeds are less abrasiion resistant than our fine aggreagte screed, it can however be improved by adding more fine aggregates to the mix, but this in turn will make the mix less flowable due to higher viscosity of the mix with added aggreagtes.
- Fibre Reinforcement
All our self levelling screed products contain fibres to prevent microcracking and crazing.