Sand Cement Screed
Traditional sand cement screed is made up of a fine screeding sand and cement in ratios of between 1.3 and 1.5 with 1.4
being the most popular.
Features:- Cement based product
- Can traffic after 5 days
- Can lay in bonded, Unbonded and Floating applications
- Easy to put in movement and expansion joints in
- Dries at 1mm per day
Benefits: - Cost effective for small bay sizes
- Can be laid between 40 and 100mm thick
- Can add additives to enhance its performance such as fibres to reduce the effect of dry shrinkage cracking
- Improved permeability with addition of fibres
- Addition of fibres can improve impact abrasion resistance
PB Flooring can also offer Polymer or SBR screeds which are sand cement screeds that have been modified with an
SBR resin to improve its flexural strength allowing it to be laid in much thinner sections than normal traditional screed.
It can be laid at 25mm average thickness 15mm minimum thickness in no more than one area, in a bonded application.
Other benefits include:
- Reduced permeability
- Increased flexural strength enabling it to be laid thinner
- Perfect for refurbishments i.e. Barn conversions
Fast Drying Screeds
If your project is on a tight deadline and speed is the essence PB Flooring offer a range of Fast drying screeds which
are sand cement screed that have had an additive added to them that vastly reduces their drying time, for example a
normal sand cement screed laid at 50mm will dry at a rate of 1mm per day up to 40mm and 1mm per 2 days for the
further 10mm so a drying time of 60 days would be expected.
We can offer screeds that will dry at various rates from 25mm per week so a 50mm screed will be dry in 2 weeks, to
screeds that can be tiled 24 hours after being laid.
Features: - Fast drying sand cement screed
- Reduced dry shrinkage cracking
- Improved compressive strength
- Particularly suitable to under floor heating
Benefits: - Quicker trafficking
- Reduced water cement ratio so fewer cracks
- Easier to lay and compact so lower chance of failure due to poor compaction
- Improved resistance to site traffic/dusting
- Greater final strength
- Easier to lay on under floor heating than traditional sand and cement screed