Synthetic fibres for screed
Code
Material
10 48 10
Plastic
Specifications
Tensile
Dosage
Strength
Technical characteristics
Properties
Material
Form
Specific weight
Length
Length/diameter ratio
Tensile strength
Resistance to acids, bases and salts
Unit of
Measure
ASTM C1116
-
kg/dm
3
mm
-
MPa
-
Value
Synthetic polypropyl-
ene-based polymers
mono-filament
1
29
37.17
400÷450
very high
MPa
kg/m
3
400÷450
1,0÷4,0
Structural synthetic macro-fiber from a non-fibrillated monofilament based on a special
blend of synthetic polypropylene-based polymers. Thanks to its ability to reduce
plastic shrinkage and improve the durability of cement mixes intended for making
screeds for civil use, it is used to make screeds for heated floors, in partial or total
replacement of secondary continuous mesh reinforcement.
DOSAGE: from 1 kg/m
3
for residential screeds up to 4 kg/m
3
for screeds subject to
significant loads.
Use
The synthetic macrofibers for screed consist of a special blend of polypropylene-
based synthetic polymers and are a three-dimensional reinforcement that improves
the durability and properties of cement conglomerates for realising screeds, sub-floors
and prefabricated casting structures, with humid or extruded screeds, in order to
increase ductility and reduce (in some cases totally eliminate) plastic shrinkage.
Synthetic fibres for screed can be used in any type of concrete for realising screeds,
concrete slabs and sub-floors for interior flooring; conforms to the UNI EN 14889-2
standard.
Method of Use
The recommended dosage for most residential screeds is 1 kg/m
3
. The dosage range
specified covers all applications in light, non-structural pre-fabrication of screeds,
concrete slabs, etc. Therefore, we recommend carrying out preliminary tests to identify
the ideal dosage for the work in hand.
The fibres are added together with aggregates and binders.
Starting mixing by adding the water necessary to obtain the desired workability.
After addition, mix for at least 5-7 minutes at maximum speed.
64
Underfloor Radiant Systems - Product Guide
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