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Traditional construction process

35-42 days drying time

Traditional building process
35-42 days drying time

In order to get a full material guarantee from the self-levelling supplier, the concrete must harden for 28 days. Once the hardening is complete, the floor has to be primed and treated with self-levelling compound, but before this is done, a lot of preparation is required, as lift shafts, pipe conduits for electricity and waste pipes, etc. need to be sealed and protected.

Once the floor has been primed, the compound has to be pumped, which requires a lot of equipment and transport. Depending on the weather conditions, the quantity and quality of the compound may need a further 7-14 days of drying time.

After around 35-42 days, work on raising the walls and the other construction work can continue.

Potential risks
  • Mould damage if the concrete has not dried
  • Once the floor is primed, moisture remains in the concrete
  • Material release, as the self-levelling compound has a poor C value
Disadvantages

Cons Long drying times (anticipated times)
Cons Extra work sealing pipe conduits
Cons A great deal of logistics
Cons Huge material costs (see example)

Example

In order to achieve 10 mm self-levelling compound per m², around 17 kg dry self-levelling compound + 15% water is required.
Total weight: 19.5 kg per m².

Estimated cost of self-levelling compound, including material, pumps, preliminary work and transport, around EUR 0,5-0,6 per kg. Self-levelling compound costs between EUR 10 – 12 per m².

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