Rapid screed
Quick brush
SCRD-RAPID-(0-4MM)
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- Waterproof
- Sets hydraulically
- Resistant to weathering and frost
- Plastic-modified
- Durable mortar
- Plastic and flexible for processing
- High early strength and final strength
- Resistant to ageing and volume
- As screed CT-C40-F6 in accordance with DIN EN 13813
- In accordance with DIN EN 13501-1 fire rating A1fl
Shelf life of 9 months when protected from the weather
Seal any opened containers immediately, store in a cool and dry location on wooden grids and use up as soon as possible.
The screed can be walked on after 3 hours.
The rapid screed can be covered with concrete at a residual moisture content of less than 2.5 wt % (measured according to the CM method). This residual moisture content is achieved after 24 hours with a screed thickness of 4 cm, a substrate and air temperature above +20°C and a relative humidity of max. 50 %.
In the case of a compound screed, you must wait until the complete structure is dry.
For heated screeds, heating can take place after three days:
- The flow temperature should be kept at the lowest level for three days. Then increase the heat in 5°C steps until the maximum flow temperature is reached.
- Maintain this temperature for four days and then lower it to room temperature (approx. 20°C) in 5°C steps.
- The technical data applies to +20°C and 50 % relative humidity
- Lower temperatures increase the specified values, while higher temperatures decrease the specified values
- Screeds interact with their environment with regard to building physics. If the screeds remain in place for an extended period of time, moisture can penetrate back through them
- The amount of water required is based on empirical values. Depending on the application, it may be necessary to add more water
- The processing time depends on the absorption capacity of the substrate
- For the subsequent laying of tiles, slabs, mosaic, concrete, building blocks or natural stone coverings
- In the case of unusually highly absorbent, new or unusual substrates, test surfaces must be prepared and the processing guidelines of the respective manufacturer followed
- Clean vessels, tools etc. immediately with water
Once hardened, it can only be cleaned off mechanically
The usage instructions are recommendations based on the tests we have conducted and on our experience; carry out your own tests before each application. Due to the large number of applications and storage and processing conditions, we do not assume any liability for a specific application result. Insofar as our free customer service provides technical information or acts as an advisory service, no responsibility is assumed by this service except where the advice or information given falls within the scope of our specified, contractually agreed service or the advisor was acting with deliberate intent. We guarantee the consistent quality of our products. We reserve the right to make technical changes and further develop products. Please observe the technical data sheet!
Datasheets(X)
- For the production of readily usable screeds, e.g. for new-builds and refurbishment
- For the construction of rapid-setting cement screeds on separating, insulating or bonded layers in accordance with EN 13813, taking into account rapid setting
- For heated floor structures
- Repair of cement screeds
- Mix 25 kg of rapid screed with approx. 2.25 l of clean, cold tap water.
- Suitable for mixing with all common screed mixing and conveying machines.
- When processing mechanically with compressed air conveyors, maximum feed widths or feed heights of 30 m or 15 m must be observed.
- The prepared areas must only be large enough to be completed within the processing time. In the case of compound screeds, the concrete surface must be pre-wetted and pre-slurried with contact slurry. Apply the screed mortar while the contact slurry is still fresh.
- In the event of interruptions to work, the mixer, pumps and hoses must immediately be cleaned thoroughly.
- Mortar that is already hardening must not be diluted with water.
Layer thickness:
- Compound screed: 30 mm-80 mm
- On separating layer: 40 mm-80 mm
- On insulating layer: 45 mm-80 mm
Caution: In the case of heated screeds, the screed thickness starts at the top of the heating pipe!
Weight of content | 25 kg |
Shelf life from production | 6 Month |
Chemical basis | Cement and additives |
Standards | EN 13813 |
Colour | Grey |
Min./max. processing temperature | 5 to 25 °C |
Processing time | 40 min |
Application conditions | at min. 5°C and max. 80% relative humidity |
Min./max. coating thickness | 30-60 mm |
May be walked on after max. | 3 h |
May be walked on in following conditions | at 20°C and 50% relative humidity |
Groutable after | 1 d |
| Layer thickness | 25-80 mm |
| Mixing water | Approx. 2.25 l per 25 kg |
| Processing time | Approx. 30 min |
| Temperature resistance | -20°C to +80°C |
| Application temperature | +5°C to +25°C |
| Can be walked on | After approx. 3 h |
| Ready for laying with a residual moisture ≤ 2.5 CM wt % | After approx. 1 to 3 days |
| Usable | After approx. 1 day |
| Fully loadable | After approx. 7 days |
| Coverage | 2 kg/m² and mm layer thickness |
| Yield | 0.5 l/kg |
| Compressive strength according to DIN EN 138922 | |
| - After 24 hours | |
| - After 3 days | Approx. 20 N/mm² |
| - After 28 days | Approx. 30 N/mm² |
| Approx. 40 N/mm² | |
| Shelf life | Approx. 9 months |