| Customization: | Available |
|---|---|
| Chemical Composition: | Microfibers |
| Color: | White |
|
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Polypropylene short-cut fiber for dry-mixed mortar and GRC premixing
PP fiber is also called engineering fiber, concrete fiber,anti-crack fiber, crack control fiber,synthetic fiber or plastic fiber,etc.It is a kind of high intensity bunchy monofilament fiber mainly made of PP by special technique. Put PP fiber into the concrete or mortar, can effectively prevent temperature change, microcrack caused by plastic and dry shrinkage,etc, thereby prevent crack and improve effectively anti-crack,anti-infiltration, anti -concussion and anti- shock of the concrete.
They are used widely in roads,bridges,underground waterproof projects and roofings,walls,pools,basements of the industrial civil construction.
The Physicochemical Properties of PP Fiber
|
Material Form |
polypropylene |
The Type of the Fiber |
bunchy monofilament |
|
The shape of section |
trefoil or circle |
Identical Diameter (um) |
20-50 |
|
Density(g/cm3) |
0.91~0.93 |
Length(mm) |
3/6/12/15/18 |
|
Color |
nature(white) |
Tensile Strength(MPa) |
≥500 |
|
Elongation at Brea(%) |
≥15 |
Modulus of elasticit(MPa) |
≥3500 |
|
Melting Point(°C) |
160~180 |
Acid & Alkali Resistance (the holding rate of ightiness)(%) |
strong |
The General Introduction of the Fiber Reinforced High Performance Concrete(FRHPC)
The cement concrete material is the most widely-used man-made construction material nowadays. But it tends to produce crack as a result of its brittleness, and the anti-stretch intensity of the ordinary high-strength concrete is far lower than its anti-compression intensity, so the brittleness damage easily happen, which will influence the lifetime of the project.
With the rapid development of the city construction of our country and the continuous innovation of the technique of architecture, the high-rise buildings,the skyways,the underground traffic make requests to the performance of the concrete, e.g. high anti-stretch and anti-compression,high toughness,high anti-infiltration and anti-crack,easy to construct and so on, as a result, the FRHPC arised.
FRHPC, that is, adding synthetic fiber or steel fiber or glass fiber or carbon fiber etc. into the ordinary concrete, which embodied the logos of composite material design. Especially the synthetic fiber reinforced concrete, not only remain the high anti-compression the concrete inhered, but also reinforce anti-crack, anti-infiltration and toughness, that make it meet the demand of nowadays high and new construction better.
The Function of Reinforcement of PP Fiber for the Concrete
1) Anti-crack function
PP fiber was distributed in the concrete in 3D stereo, which reduces the stress concentration of the microcrack point , weakens or removes the tension caused by sun crack of the concrete or mortar, further prevents the happen and development of the microcrack.for plastic concrete, PP Fiber can support the aggregate, reduce and prevent the isolation tendency of the concrete, so lessens even prevent the happen of crack on surface;
2) The improvement of anti-infiltration performance
PP Fiber can lessen the plastic crack of concrete effectively, and prevent the development and run-through of the crack.The evenly distributed fiber monofilament formed a support system, prevent the surface bleeding and the aggregate fall, decrease the bleeding of concrete, reduced the bleeding passage of concrete, lessened the hole rate greatly, consequently prevent infiltration of the concrete obviously;
3) the improvement of anti-freezing and thawing
PP fiber can decrease effectively anti-compression stress concentration in the concrete caused by several times'circulation of freezing and thawing, which prevent the further extend of the microcrack.In addition, the increase of the anti-infiltration of the concrete surely makes for the improvement of freezing and thawing;
4) the improvement of toughness and anti-shock:
PP Fiber can help to absorb the kinetic energy ,which produced when the component of concrete is shocked, moreover due to the anti-crack effect of the fiber, when the concrete is shocked, the fiber can prevent the rapid extend of the inner crack, consequently increased the toughness and anti-shock of the concrete.
5) the improvement of durability
The excellent anti-crack effect of the PP Fiber reduce the happen and development of the crack greatly
The reduction of the inner hole rate makes the infiltration and corrosion from the water,the chemical substance,theChloride salt as well as other outside factors slow down, i.e. because of the great reduction of the crack, the channel that provided by the crack which would make the function of damage and corrosion infiltrate even extend becomes less and less, which reduces the damages to the structural main bar, thereby improves the durability of the concrete.
6) the improvement of fire resistance
Adding PP Fiber into the concrete, especially the high-strength concrete, can improve the fire resistance and the security in fire High-strength concrete has high compaction. In the flame, because the high pressure steam formed by heating up of free and chemical water in the concrete is difficult to escape, frequently, the component of the concrete would blowout and collapse suddenly, and cause big harm.
However the fiber concrete could avoid the blowout in fire effectively. Because when the temperature in the component of the concrete is above 165°C, the PP fiber monofilament mesh that distributed around them will melt, simultaneously produce inner link channels for the escape of the high pressure steam from the concrete.
Recommended content:
For dry-mixed mortar, it is recommended to add 1kg/m ³.
For GRC premix, the recommended content is 2.5-3.5% by weight.
Packaging:
PP Microfiber is packed in colored plastic bag, which contains independent small packages with a weight of 1kg/bag. The packaging can also be designed according to the actual requirements of customers.
Quality standard and certification:
PP microfiber production conforms to ISO9001 quality management certification system.
PP fiber series products are not included in the list of dangerous goods stipulated by 1272/2008/EC
Our team:
About us:
Shenzhen Feige composite Fiber Co., Ltd. is a wholly-owned subsidiary of Shenzhen Yataida High-Tech. Co.Ltd. It was established in 2017 specializing in import and export business.
Shenzhen Yataida High-Tech. Co.Ltd. was established in 2006; we are specialist in producing, sales and exporting of fiberglass chopped strands, fiberglass powder, carbon fiber chopped strands, carbon fiber powder and other composite fibers. we established several advanced production lines with annual output 3000 tons. our company focus on technological innovation and product upgrades. At present, all products have reached the standard of ROSH and detected by SGS. Our laboratory is equipped with a full set of advanced instruments. We have already exported our products to Germany, Turkey, America, India, Pakistan ,Vietnam, Malaysia, Australia, South Korea , Brazil, Argentine, Bulgaria, South Africa, Egypt, UAE, Kenya, Nigeria, Zimbabwe, Sri Lanka and other more than twenty different countries. The key of our surviving in the market during the years is good quality, reasonable price, proper technical & commercial support and services. We are a company with an excellent track record for the best customer satisfaction.
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