Concrete fiber range

The Polyguard concrete fiber range

Macro and micro synthetic fibers for concrete and asphalt. Every grade is supplied with a technical data sheet and a dosage recommendation for your mix. For full specifications see the polypropylene concrete fibers page and the macro synthetic fiber page.

Jointless polished concrete floor in a distribution warehouse

PG MF-54

Structural macro fiber

The workhorse grade for slabs on grade, industrial floors and rafts. Embossed macro filaments anchor into the matrix and carry load across a crack once it forms. That post-crack residual capacity is what can allow crack-control mesh to be reduced or replaced, where the structural design and the required residual performance permit.

Fiber length: 54 mm
Typical dosage: 3–7 kg/m³
Material: Virgin polypropylene
Best for: Floors, rafts, hardstandings

Request the data sheet

Macro synthetic fibers dispersed through freshly placed concrete

PG SC-48

Shotcrete fiber

Shaped and sized to pump and spray cleanly, with low rebound and no blocking at the nozzle. Designed as an alternative to welded mesh in tunnel linings and slope stabilisation, subject to performance-based design — where fixing steel is the slowest and least safe part of the cycle.

Fiber length: 48 mm
Typical dosage: 4–9 kg/m³
Application: Wet and dry spray
Best for: Tunnels, slopes, mining

Request the data sheet

Precast concrete facade panels being lifted into position

PG PC-40

Precast & facade fiber

For thin architectural sections that have to survive demoulding, stacking, transport and lifting. Because polypropylene does not corrode, it eliminates the fiber-related rust bleed and staining that comes from the reinforcement it replaces.

Fiber length: 40 mm
Typical dosage: 2–5 kg/m³
Surface: No rust bleed
Best for: Panels, culverts, segments

Request the data sheet

Fresh fiber-reinforced concrete flowing from a chute on site

PG EC-45

Economic macro fiber

Specified where the concrete needs reliable crack control rather than a full structural replacement for reinforcement. The lowest cost per cubic metre in the range, without dropping to recycled polymer.

Fiber length: 45 mm
Typical dosage: 2–4 kg/m³
Material: Virgin polypropylene
Best for: Screeds, paving, light slabs

Request the data sheet

Roller compacting a freshly laid asphalt layer

PG AS-20

Asphalt reinforcing fiber

Dosed at the asphalt plant to hold the binder film and resist rutting and reflective cracking on heavily loaded pavements — bus lanes, port surfacing, industrial yards.

Fiber length: 20 mm
Typical dosage: 0.05–0.3% by mass
Added at: Pugmill / drum mixer
Best for: Heavy-duty pavements

Request the data sheet

Fiber-reinforced concrete discharging onto an industrial floor slab

PG MS-12

Micro monofilament fiber

Controls plastic shrinkage and settlement cracking in the first hours after placing, and improves fire spalling behaviour in tunnel and structural concrete. Often specified alongside a macro grade.

Fiber length: 6 / 12 / 18 mm
Typical dosage: 0.6–1.2 kg/m³
Controls: Plastic shrinkage
Best for: All concrete, fire-rated mixes

Request the data sheet

Not sure which grade fits your mix?

Send us the slab thickness, the exposure class and the loading. We will come back with a dosage and a trial-mix plan.

Ask an engineer