Ready Mixed Screed Estimator
This Estimator will give you the approximate quantities of ready mixed screed in tonnes and
cubic metres for a given area.
See
below
for info on the differing types of floor screeds.
A screed mix calculator with approximate costs is also available here.
Please enter the dimensions in the white fields below. The calculations will be
completed when you leave the last input field.
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Floor screeds
are an in-situ flooring of cement mortar laid to an accurate flat surface
by screeding, or by self-levelling. Common types are -
Ready-Mixed sand & cement
floor screeds are an ideal screed for flooring applications.
It can be used as ground floor slabs (floating foundations),
used on suspended floors, as a topping to lightweight screeds
based on perlite or other lightweight aggregates and can also be
used as a floating construction over insulation to give acoustic
or thermal properties.
Properties -
Retarded in order to remain workable for 8-12 hours
Consistent quality is guaranteed
Better cement dispersion gives greater and more uniform compressive
strength throughout the floor area.
Pre-mixed provides consistent quality materials and accurate
proportioning
Fibre screeds
have been developed to meet the increasing demand for factory-mixed sand & cement screeds incorporating an even dispersal of polypropylene fibres. Suitable fibres introduced in the mix can provide cohesion and help control cracking caused by stress.
Minimum early shrinkage or cracking
Properties -
Improved strength and flexural fatigue resistance
Can eliminate the use for wire mesh
Improved toughness
Easy to place, compact and overcomes many practical problems when used as an alternative to steel crack controls
Better impact and abrasion resistance
Self levelling screeds
based on alpha hemihydrate calcium sulphate are ready to use and
have advantages over semi-dry floor screeds, however they are not
for the DIY market.They are less labour intensive and up to ten
times the area can be laid with one gang compared with traditional
semi-dry screeds. Also shrinkage and curling is very unlikely to
occur. They can also be laid thinner than conventional semi-dry
floor screeds
Properties -
May be lightly trafficked after 1 to 2 days, depending on drying conditions.
Care should be taken to avoid excessive water loss in the first 24 hours.
If windows or external doors are not installed, temporary
provision must be made with polythene or similar. Direct sun
must also be avoided during early life.
Abrasion & impact resistance are good when compared with
traditional sand & cement floor screeds. However, screeds
should not be treated as wearing surfaces and care should be
taken to protect against excessive impact.
