Product Data Sheet Show all documents

SikaFiber®

Monofilament polypropylene fibre for concrete and mortar

SikaFiber® is based on high quality monofilament micro polypropylene fibres. It is designed to minimize and control plastic shrinkage cracks by increasing the strain capacity of fresh concrete. SikaFiber® is available in premeasured, ready in use degradable bags for 1m3 of concrete.

Due to their fineness and special surface treatment, SikaFiber® can be easily dispersed in the concrete or mortar and create a dense matrix that leads to:
  • Improved cohesiveness of the fresh concrete
  • Reduced plastic shrinkage cracks
  • Reduced bleeding
  • Increased abrasion properties
  • Improved freezing and thawing resistance
  • When used in shotcrete, it reduces rebound waste
  • Increased resistance to impact loads
  • Reduced concrete permeability
  • Resistance to slab curling
  • Improved fire damage properties
Product Data Sheet Show all documents

Usage

SikaFiber® is used in the following applications in fresh (green) concrete to reduce the incidence of shrinkage cracking.
  • Pavements
  • Precast concrete products
  • Industrial floors, slabs
  • Wet and dry system sprayed concrete production
  • Airport apron and car park slabs
  • Concrete which is subjected to impact load
  • Screeds and plasters etc.
 

Advantages

Due to their fineness and special surface treatment, SikaFiber® can be easily dispersed in the concrete or mortar and create a dense matrix that leads to:
  • Improved cohesiveness of the fresh concrete
  • Reduced plastic shrinkage cracks
  • Reduced bleeding
  • Increased abrasion properties
  • Improved freezing and thawing resistance
  • When used in shotcrete, it reduces rebound waste
  • Increased resistance to impact loads
  • Reduced concrete permeability
  • Resistance to slab curling
  • Improved fire damage properties

Packaging

Soluble 1 kg bags (20 bags per box)

Colour

White

Product Details

Product Information

Composition

100% Polypropylene Fibres

Shelf life

Product can be stored for indefinite period in a dry environment.

Storage conditions

Store in original, unopened, sealed and undamaged packaging in dry conditions at temperatures between +5 °C and +30 °C.

Density

0.91 g/cm3

Dimensions

Length 12 mm

Nominal diameter 18 micron

Melting point

160°C

Ignition temperature

Above 350°C
Technical Information

Water absorption

Nil

Concreting guidance

The standard rules of good concreting practice, concerning production as well as placing, are to be followed. Refer to relevant standards. Fresh concrete must be cured properly.

Specific advice

Thermal Conductivity: Low
Electrical Conductivity: Low

Tensile strength

300-400 N/mm2

Resistance to alkalinity

High

Application

Application Information

Dispensing

SikaFiber® should be ideally added at the batching plant. In case of site mixing, additional mixing time of 3 to 5 minutes (70 cycles) is necessary to ensure the uniform fibre dispersion throughout the mix. If mixing is at the batching plant, fibre should be added first along with half of the mixing water. After all the other ingredients have been added, including the remaining mixing water the concrete or mortar should be mixed for a further 3 minutes at full speed to ensure uniform fibre dispersion.
Consumption

Recommended dosage

SikaFiber® shall be added at minimum dose rate of 1.0 kg (1 bag) per cubic metre of concrete.

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