Kortta Polypropylene Fibre Concrete

With DENA WORLD ‘s Fibers you can be assured of getting the best range of concrete solutions, specifically designed to high specifications for various end uses. Polypropylene Fibre Concrete is versatile and can be used in most applications. Polypropylene fibre (short-cut strands of very fine denier monofilament*) is added to the concrete during batching. Thousands of individual fibres are then evenly dispersed throughout the concrete during the mixing process creating a matrix-like structure.

*fibrillated fibres can also be supplied on request.

Applications

  • Most small builder, cash sales and DIY applications
  • Internal floor-slabs (retail stores, warehouses, etc.)
  • External slabs (driveways, yards, etc.)
  • Agricultural applications
  • Roads, pavements, driveways, kerbs
  • Shotcrete; thin section walling
  • Overlays, patch repair
  • Water retaining structures, marine applications
  • Security applications such as safes and strongrooms
  • Deep lift walls

 

Features and Benefits

Plastic state advantages

 

Feature Benefits
Improves concrete’s resistance to plastic

shrinkage cracking.

Reduced frequency of plastic cracking.
Inhibits formation of micro-cracks due

to dimensional change.

Improved durability and reduced

permeability.

Reduces sedimentation. Decreases risk of plastic settlement

cracking over re-bar.

The addition of fibres helps to maximise the intrinsic early strength of the concrete and specifically:

NOTE:

Polypropylene fibres actually help inhibit the formation of cracks in concrete, whereas steel mesh only has functional value after the concrete has cracked.

Other fibre concrete available from DENA WORLD Co:

  • Advanced Polypropylene Fibre Concrete • Steel Fibre Concrete

Features and Benefits (continued)

Working improvements

Polypropylene fibres offer many installation advantages, enabling a better job to be achieved in less time:

Feature Benefits
Increased cohesion of the mix. Reduced settlement.

Easier finishing.

No requirement for crack control steel mesh. No need to purchase and store additional material.

No delays to fast track schedule.

Easier positioning of joints.

Concrete placement and crack control in ONE operation. Reduced site labour requirement.

No secondary steel mesh is required, and reinforcement is automatically positioned.

Reduced bleeding. Easier finishing of the concrete surface.
Less expensive (per m2) than conventional steel mesh reinforcement. Reduced project costs.

NOTES:

  1. Effective protection and curing is essential for all concrete slabs- including polypropylene fibre concrete.
  2. Polypropylene fibre concrete CANNOT be used as a substitute for structural steel reinforcement.

Final concrete performance

The effects of polypropylene fibre concrete in its plastic state lead to other advantages in its hardened state:

Feature Benefits
Reduced plastic cracking means a reduction

in surface permeability.

Enhanced durability.
Bleed water control inhibits migration

of cement fines and sand to the surface.

Harder, more durable surface with

better abrasion resistance.

Even distribution of fibres throughout

the concrete.

Improved flexural properties.

Increased resistance to spalling at higher

temperatures and so…. better fire resistance.

A tougher surface with fewer bleed holes. Reduced absorption of water, chemicals and dirt.

 

Cost benefit analysis

  • Cost savings in secondary reinforcement steel mesh for ground supported slabs
  • Faster construction (removes the need to lay mesh and spacers etc.)

 

Health and Safety

Contact with concrete may cause irritation, dermatitis or severe alkali burns. There is serious risk of damage to the eyes. Wear suitable waterproof protective clothing, gloves and eye/face protection. In case of contact with eyes, rinse immediately with plenty of clean water and seek medical advice. After contact with skin, wash immediately with plenty of clean water. Keep out of reach of children. Contains Chromium (VI), may cause allergic reaction.

 

ADVANCED POLYPROPYLENE FIBRE CONCRETE

With DENA WORLD Fiber you can be assured of getting the best range of concrete solutions,

Specifically designed to high specifications for various end uses.

Advanced Polypropylene Fibre Concrete is a pioneering combination of fine and coarse monofilament polypropylene fibres which takes concrete fibre reinforcement to a new level of performance.

The introduction of deformed course fibres into the concrete mix allows much higher dosage rates, resulting in increased toughness and ductility of hardened concrete.

Applications

  • Internal floors (retail stores, warehouses etc.) including heavy industrial floors
  • External slabs (pavements & hard standings)
  • Roads & bridges
  • Airport taxiways

Features and Benefits

Cost benefit analysis

  • Cost savings in secondary reinforcement steel mesh for ground supported slabs
  • Faster construction (removes the need to lay mesh and spacers etc.)

Health and Safety

Contact with concrete may cause irritation, dermatitis or severe alkali burns. There is serious risk of damage to the eyes. Wear suitable waterproof protective clothing, gloves and eye/face protection. In case of contact with eyes, rinse immediately with plenty of clean water and seek medical advice. After contact with skin, wash immediately with plenty of clean water. Keep out of reach of children. Contains Chromium (VI), may cause allergic reaction

 

  • Introduction to DENA WORLD kortta fibers
  • The role of the fibers and the welded mesh industrial pavings
  • Comparison statement as in ordinary concrete floor and welded and fiber-reinforced concrete floors with DENA WORLD kortta fibers
  • The design of fiber-reinforced concrete pavement
  • Tables for the sizing of pavingsfiber-reinforced concrete with DENA WORLD kortta fibers Concrete floors without joints fiber reinforced expansive concrete
  • Insulation jointsSlabs corrugated metal and concretethe fiber-reinforced concrete structures resistant to fire.