DESCRIPTION
SikaFiber®-12 is a high-quality, 100% virgin polypropylene fibre designed to minimize plastic shrinkage and settlement cracking while improving the surface properties and durability of cement-based materials. It is treated with a surfactant to enhance initial dispersion and bonding with the cement paste. Suitable for use in hot and tropical climates.

USES
SikaFiber®-12 helps prevent micro-cracking caused by plastic and drying shrinkage in various cementitious systems, including:

• Concrete
• Shotcrete
• Cementitious overlays
• Industrial floor slabs
• Patch repairs to pre-cast elements
• Water retaining structures
• High-performance concrete
• Precast concrete tunnel segments

CHARACTERISTICS / ADVANTAGES

• Helps reduce future repair costs
• In shotcrete:
  • Allows for greater thickness application in a single pass
  • Reduces rebound
  • Enhances early-age crack control
  • Lowers line pressure in spray pumps
  • Can decrease the need for set accelerators

APPROVALS / CERTIFICATES
Complies with EN 14889-2: Polymer Fibres – Definitions, Specifications, and Conformity

PRODUCT INFORMATION

• Composition: Polypropylene
• Packaging: 0.6 kg water-soluble bags (30 bags per box, other packaging sizes available on request)
• Appearance / Colour: White fibre
• Shelf Life: 12 months from the production date if stored properly
• Storage Conditions: Store in dry conditions, in unopened, undamaged original packaging, at temperatures between +5°C and +45°C. Protect from direct sunlight and frost
• Density: ~0.91 kg/l (+25°C)
• Fibre Length: ~12 mm
• Fibre Diameter: ~18 µm
• Melting Point: ~160°C

TECHNICAL INFORMATION

• Concreting Guidance: Follow standard good concreting practices for production and placement. Ensure proper curing of fresh concrete, especially in high temperatures, to prevent shrinkage. Use Sika® Antisol® products or wet hessian for curing.

APPLICATION INFORMATION

• Recommended Dosage: 0.6 kg/m³. Adjust dosage based on mix design, raw materials, and climatic conditions; perform trial mixes to determine the exact dosage.
• Compatibility: Compatible with all types of Portland cement, concrete containing pozzolanic materials (e.g., GGBS, PFA, micro-silica), and various Sika products including:
  • Sikament®
  • Sika® ViscoCrete®
  • SikaPlast®
  • Sika Aer®
  • Plastiment®
• Dispensing:
  • Plant Mixing: Add SikaFiber®-12 after all other ingredients and water, ensuring uniform dispersion.
  • Truck Mixing: Best added in the batching plant mixer, or if necessary, in the truck mixer. First add the fibre with about 30% of the mixing water, then add other ingredients, the remaining water, and mix at full speed to ensure even dispersion.