Polypropylene (PP) Fiber for Concrete - Enhancing Durability and Crack Resistance

Polypropylene (PP) Fiber is a high-strength bundle fiber specifically designed for concrete reinforcement. Made from premium polypropylene through a unique production process, this fiber effectively controls micro-cracks caused by solid-plastic shrinkage, dry shrinkage, and temperature changes. It improves the crack resistance, impermeability, impact resistance, and seismic resistance of concrete.

Performance Parameters of Polypropylene (PP) Fiber

Effects of Polypropylene (PP) Fiber in Concrete

1. Preventing Shrinkage Cracks

• Polypropylene (PP) Fiber effectively controls shrinkage cracks in mortar, improving the overall structural integrity.

2. Improving Impact and Peel Resistance

• Enhances the impact and peel resistance of the wall surface, making it more durable.

3. Enhancing Abrasion Resistance

• Improves the abrasion resistance of the wall, extending its lifespan.

4. Increasing Impermeability

• Significantly improves the impermeability of the wall surface, reducing the risk of water damage.

5. Improving Freeze-Thaw Resistance

• Enhances the freeze-thaw resistance of the concrete, making it suitable for harsh environments.

6. Enhancing Tendon Function

• Acts as a tendon, reinforcing the concrete and improving its tensile strength.

7. Preventing Crack Growth

• Helps prevent the formation and growth of cracks in mortar, maintaining the structural integrity of the concrete.

8. Replacing Wire Mesh

• Can replace wire mesh in certain applications, reducing installation time and cost.

Properties of Polypropylene (PP) Fiber

1. Easy Dispersion

• Easily disperses in mortar or concrete, ensuring effective crack prevention.

2. User-Friendly Application

• Simple to use, no need to alter the mortar ratio; just mix the fiber with water and aggregate.

3. Improved Bonding Strength

• Increases the bonding strength between the plastered surface and the substrate due to the fine and even distribution of fibers.

4. Stable Chemical Properties

• Features stable chemical properties with strong acid and alkali resistance, suitable for use in any construction project.

Usage of Polypropylene (PP) Fiber

1. Correct Dosage Calculation

• Calculate the correct amount of fiber to be added based on the volume of concrete being mixed.


• Recommended dosage: 0.9-1.2kg per cubic meter of mortar; 0.9-1.8kg per cubic meter of concrete.

2. Mixing Process

• Add the fiber along with the aggregate into the mixer, ensuring the fiber is dispersed between the aggregates.


• Dry mix for approximately 30 seconds, then add cement and water, and wet mix for another 30 seconds.

3. Sampling and Inspection

• Conduct random sampling after mixing to ensure uniform dispersion of fibers.


• Extend mixing time if fibers are not fully dispersed.

4. Standard Construction and Maintenance

• The construction and maintenance process for concrete with added fibers is the same as for ordinary concrete.

Specifications and Packaging of Polypropylene (PP) Fiber

Basic Specifications:

• Length: 6mm, 9mm, 12mm

Basic Packaging:

• Bag Weight: 1.0kg/bag with film packaging; outer packaging with woven bag.

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Luoyang Tongrun Nano Technology Co., Ltd. is committed to Polypropylene Fiber, applications of nanotechnology, and new material industries, with professional experience in nanotechnology research and development and the application of materials.

As a leading nano-technology development and product applications manufacturer, Luoyang Tongrun dominates the market. Tongrun technology provides solutions across the various processes and steps of laboratories and industries. Our professional working team provides the perfect solutions to help increase efficiency in various industries, create value, easy to deal with various challenges.

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Transportation: We can ship by FedEx, TNT, DHL, by air, by sea, or as customers request.

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