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Polypropylene Fiber PP Fiber Concrete
  • Polypropylene Fiber PP Fiber Concrete

Polypropylene Fiber PP Fiber Concrete

Fiber density:0.91g/cm3

Equivalent diamete:34.2um

Breaking strength:599Mpa

Melting point:169℃

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Overview of Polypropylene PP Fiber

Concrete Polypropylene PP fiber is a kind of high-performance fiber specially used in concrete/mortar, which can effectively control the micro-cracks caused by plastic shrinkage, dry shrinkage, and temperature change of concrete/mortar and prevent and restrain the formation and development of primary cracks of concrete. Greatly improve the anti-crack and anti-seepage performance, the anti-abrasion performance of concrete/mortar, and increase the toughness of concrete so as to improve the service life of the concrete.

Through special anti-static and anti-ultraviolet treatment, PP fiber can disperse evenly in concrete and exert its effect for a long time; 

PP fiber has a rough and porous surface after chemical grafting and physical modification, which greatly improves the adhesion between fiber and cement-based aggregate. 

When monofilament polypropylene fiber is added to concrete base material, it can be uniformly mixed with mortar concrete material quickly and easily. 

Because of the fine fiber and large specific surface area, there are nearly 20 fibers per 1cm3 of concrete, so it can form a random support system in the concrete, which can effectively control the emergence and development of early plastic shrinkage, dry shrinkage and other non-structural cracks of concrete and cement mortar; PP fiber can effectively hinder the segregation of aggregates and the formation of settlement cracks. 

Adding PP fiber to concrete can improve the impermeability and impact resistance of concrete, increase the toughness and wear resistance of concrete, and prolong the life of buildings.

Datas of PP Fiber

Test item

Test results

Fiber density,g/cm3,g/cm3


Equivalent diamete,um


Breaking strength,Mpa


Elongation at break,%


Modulus (1% tangent),Mpa


Melting point,℃



Properties and Characteristics of PP Fiber

Polypropylene PP fiber has the advantages of high strength, good toughness, good chemical resistance and antimicrobial resistance, and low price, so it is widely used in ropes, fishing nets, safety belts, luggage belts, safety nets, sewing threads, cable skins, geotextiles, Filter cloth, papermaking felt and paper reinforcement materials and other industrial fields.

1. The use of PP fiber can significantly improve the bond performance of fiber and mortar and concrete, improve the early anti-cracking of mortar and concrete, effectively prevent the occurrence and development of primary cracks of mortar and concrete, ensure uniform water bleeding, prevent pipe material segregation, and hinder the formation of settlement cracks. The experimental results show that with 0.1% fiber in volume, the crack resistance of mortar concrete is improved by 70%, and the impermeability can be significantly improved by 60% to 70% (compared with ordinary cement).

PP fiber can significantly improve the bond performance 

PP fiber can significantly improve the bond performance

2.The use of PP fiber can significantly improve the impact resistance and wear resistance of concrete.

Although polypropylene fiber has low stiffness and poor ability to transfer load, it can absorb impact energy, effectively reduce cracks, enhance the continuity of medium materials, and reduce the local stress caused by the blocking of shock waves. Therefore, it can greatly improve the impact resistance and toughness of concrete.

3. The use of PP fiber can improve the frost resistance of concrete.

The addition of polypropylene fiber to concrete can alleviate the effect of internal stress caused by temperature change and prevent the expansion of temperature cracks; at the same time, the improvement of frost resistance of concrete is also conducive to the improvement of frost resistance.

Practice and research show that adding polypropylene fiber to concrete can be used as an effective means of temperature difference compensation and crack resistance of concrete.

PP fiber can improve the frost resistance 

PP fiber can improve the frost resistance

4.The use of PP fiber can improve the toughness of mortar and concrete and significantly improve the edges, corners, and surface integrity of the products so that the internal steel bars of the products do not easy to be corrode.





Company Profile

TRUNNANO is the global leader in Low-Density Cellular Concrete (LDCC), Celluar Light Concrete (CLC), and advanced engineered foam solutions. Known globally for its commitment to research, innovation, and applied expertise, we have been providing engineered foam solutions since the early 2012's.

We can supply high-quality Potassium Silicate, Gypsum retarder and enhancer, Polyvinyl Alcohol Fiber, Concrete Crack Reducing Admixture, Hollow Glass Microspheres, Concrete strength and shrinkage reducer, Waterproof agent, Redispersible Polymer Powder (RDP) all over the world.

The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.Send us an email or click on the needed products to send an inquiry.



Package of PP Fiber

Packaging: Packed in woven bags lined with plastic film, each bag has a net weight of 20 kg. If special specification packaging is needed, it can be customized in advance.

Storage: Stored in a cool and ventilated warehouse; pay attention to moisture.



How is PP fiber produced?

Answer: The production process of PP fiber includes raw material preparation, melt spinning, drawing and shaping, curling and cutting, packaging and storage. Among them, melt spinning is a key link and requires control of process parameters such as temperature, pressure and speed.


How to determine the length and fineness of PP fiber?

Answer: The length and fineness of PP fiber can be determined according to different uses and processing requirements. Generally speaking, the length of PP fiber for textile use is longer, while the length of PP fiber for industrial use is shorter. At the same time, the fineness can also be adjusted as needed. The commonly used fineness range is 1.5-5.5dtex.


What is the production cost of PP fiber?

Answer: The production cost of PP fiber is affected by many factors, such as raw material prices, production processes, equipment costs, etc. Generally speaking, the production cost of PP fiber is relatively low, but high-quality PP fiber requires higher production cost and more complex production process.


Is PP fiber harmful to human body?

Answer: PP fiber is harmless to the human body. PP fiber is a synthetic fiber that is non-toxic and harmless to the human body and has excellent chemical resistance. It can be used to make various types of textiles and medical supplies.


How to identify the authenticity of PP fiber?

Answer: The authenticity of PP fiber can be identified by observing the appearance, burning test, dissolution test and other methods. Real PP fiber has a smooth appearance, uniform color, no irritating smell when burned, and is soluble in organic solvents such as acetone. The counterfeit PP fiber has a rough appearance, uneven color, and a pungent smell when burned.


What is the market prospect of PP fiber?

Answer: As people pay more attention to environmental protection and health, the market demand for PP fiber as a synthetic fiber continues to grow. At the same time, with the continuous advancement of technology and the continuous improvement of quality, the application fields of PP fiber are also expanding. Therefore, the market prospect of PP fiber is very broad.


How to correctly use and maintain PP fiber products?

Answer: Correct use and maintenance of PP fiber products can extend their service life and improve their performance. When using, you should pay attention to avoid excessive stretching and bending, keep it dry and clean; when maintaining, pay attention to regular cleaning and replacement, and avoid long-term exposure to sunlight and high temperature environments.

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  • Luoyang Tongrun Info Technology Co., Ltd. ( is the world's leading nanomaterial technology developer and application manufacturer, the company has more than 20 years of industry experience, after years of scientific research and production, has been professionals in lightweight concrete and foam concrete solutions. We can supply concrete foaming agents, superplasticizers, aerogels and foam concrete strength enhancers for lightweight concrete mix, CLC blocks all over the world, suitable for ordinary cement foamed concrete cast-in-place, block, plate, insulation wall, etc.