Monofilament macro-fibre for structural spritz-beton and prefabrication

Code: RDM.0206

Components: 1

Appearance: Fibers

Structural polyolefin macro-fibre, high performance, for improved adherence, with a length equal to 48 mm, specific for structural applications, even as a substitute for conventional steel reinforcements (on specific request it is possible to supply READYMESH PS with a variable length between 24 mm and 48 mm). READYMESH PS-480 increases the absorption of energy of the product in case of breakage and yielding, it gives the concrete a greater resistance to the forces of traction/bending, it reduces the risk of breakage of the concrete component in the corners and edges. It also reduces the phenomenon of segregation of the concrete during the installation and it reduces the risk of corrosion of the reinforcing rods (if present) due to the reduction in cracking from plastic shrinkage.

Linee di appartenenza

Certification obtained and Standards

Structural fibres for concrete. Polymer fibres. Definitions, specifications and conformity.

EN 14889-2:2006 (System 1)

Structural fibres for concrete. Polymer fibres. Definitions, specifications and conformity.

General characteristics


Density: 0.91 g/cm³


Diameter: 0.69 mm


Lenght: 48 mm




Unlimited shelf-life



Technical specifications

Auto-ignition temperature

>400 °C

Breaking load longitudinal

502 MPa

Effects on the consistency of fresh concrete (Vebè)

V3 _


350 °C

Fracture energy

970 J

Number of filmanets

62.500 nr/kg


Resistant to freezing/thawing cycles in the presence of salts/chlorides

Softening point

160 - 170 °C

Young modulus

10.357 MPa

Available colours

- Transparent

Packaging and dimensions

- Hydro degradable bag 4 kg

- Box: 4 x (Hydro degradable bag 4 kg)


Variable according to the type of work to be carried out (screeds, floors, spritz beton), on average from 1 to 6 kg per cubic metre of cement conglomerate.

Use fields

It can be used where widespread structural and three-dimensional reinforcement of the conglomerate is required. It is particularly indicated in structural applications and in severe operating conditions (after static-structural calculation). The main applications, to name a few, are projected concretes (spritz-beton, shotcrete, shotcrete), mass concrete, base slabs and underpinning, structural slabs, medium and large prefabrication, etc.

Use method

In the case of prefabrication or concrete mixing plants with pre-mixer, READYMESH PS-480 can be added directly into the mixer drum or alternatively on the conveyor belt of the aggregates. Add the product, at the desired dosage, only after you have loaded the aggregates in the mixer.

It is also possible to add it directly to the fibres in the mixer truck drum, after the same has been loaded with the other components of the concrete. Mix, with the drum of the mixer truck at full speed, for at least one minute for each m³ of concrete.

The dosage, depending on use, is normally included between 1 to 6 kg/m³ The recommended dosage for most structural applications is 3 kg/m³.
For information only (to be verified by preliminary tests):
> industrial concrete floors: 2.5 - 5 kg / m³;
> screeds in wet earth: 1 - 3 kg / m³;
> prefabricated elements: 3 - 6 kg / m³.

Application methods

- To be added to other components

- Shotcrete machine

Permitted supports

- Concrete

- Prefabricated concrete

- Floor screed

Warnings, precautions and Ecology

The replacement of the traditional steel reinforcement by the addition of the certified structural fibres READYMESH PS-480 can occur only with the approval of the structural engineer in charge.

Do not introduce the fibres in truck mixer until you have loaded at least 40% of the aggregates!

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