POLYACRYLONITRILE FIBER

Polyacrylonitrile fiber,also known as acrylic fiber or PAN fiber,it has higher elastic modulus,tensile strength and anti-UV properties,anti-high temperature and cold performance than polypropylene fiber,As cement concrete and asphalt concrete ribs,it can significantly increase the concrete tensile strength,anti-fatigue strength and anti-flexural strength,significantly improving the crack resistance of concrete at early age.Used in the asphalt significantly improve asphalt adhesion,high temperature stability,fatigue durability and low temperature cracking and to prevent reflection cracks,effectively improve the tensile,shear,compressive and impact strength.The true role and prospects for the use of polyacrylonitrile fibers in concrete has been the engineering sector awareness and acceptance.

SPECIFICATION:

ADVANTAGES OF USING PET FIBER:

Sustainability: Gives a second life to plastic waste, reducing landfill and ocean pollution. It has a lower carbon footprint compared to steel fiber or wire mesh.

Corrosion Resistance: Unlike steel, PET is inert and will not rust, making it ideal for structures exposed to moisture and chlorides.

No Placement Issues: Unlike wire mesh, which can be displaced during concrete placement, fibers are uniformly distributed throughout the mix, ensuring consistent reinforcement.

Improved Safety: Eliminates the risk of workers tripping over or cutting themselves on exposed wire mesh.

Cost-Effective: Reduces labor costs associated with handling, placing, and tying wire mesh.

STEP-BY-STEP APPLICATION GUIDE (FOR CONCRETE)

Materials Needed:

PET fibers (dosage as per design, typically 0.5% to 1.0% by volume of concrete)

Ready-mix concrete

Standard concrete placing and finishing equipment

Procedure:

Design & Dosage: Determine the required fiber dosage (kg/m³ or lbs/yd³) based on the project's structural and performance requirements. Consult with a structural engineer or the fiber manufacturer.

Batching:

At the Plant (Preferred Method): The fibers are added directly to the concrete mixer at the batching plant. This ensures the most uniform distribution.

On-Site: If necessary, fibers can be slowly added to the concrete truck's drum while it is mixing. Avoid adding them in a single clump.

Mixing: Ensure adequate mixing time (usually a few extra minutes) to fully separate and distribute the fibers throughout the mix. The concrete should have a uniform appearance.

Placing & Consolidating: Place and consolidate the concrete as normal. Vibration is acceptable and will not negatively affect the fibers.

Finishing:

Bleeding Water: Wait for the bleed water to evaporate before starting finishing operations. PET fiber concrete may have slightly reduced bleeding.

Timing: Do not over-finish or "work" the surface with water, as this can bring fibers to the surface.

Surface: Some fibers may be visible on the surface; this is normal and does not affect performance.

Curing: Crucial Step. Begin curing immediately after finishing using standard methods (water spraying, membranes, or coverings) to prevent plastic shrinkage cracking and ensure strength development.