EXPRESS SCREEDSAND AND CEMENTANHYDRATE FLOWING SCREED
Walkable SurfaceSeven days needed for both covering and curing24–48 hours after placement, no curing required
Surface FinishAchieved tolerance of +/- 10mm under a 2-meter straight edgeAchieved tolerance of +/- 5mm under a 2-meter straight edge
PerformanceProne to shrinkage, cracking and curlingVery low shrinkage and cracking. Will not curl
Strength (28 days)Compressive: 10-20 N/mm3
Flexural: 4-8 N/mm3
8–28 days to reach 90% strength
Compressive: 30 N/mm3
Flexural: 8 N/mm3
7 days to reach 90% strength
Drying Time1mm per day up to 40mm, ½ mm per day thereafter
75mm takes significantly longer to dry
Can’t be force-dried
1mm per day up to 40mm, ½mm per day thereafter
Can be force-dried using heater and dehumidifier
UFH can be commissioned after 7 days
Quality ControlOften mixed and placed by hand
Produced to fully verifiable industry standards
Conductivity1.1w/m2k2.2w/m2k – faster heat reaction time
10% saving on running cost

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