PP Fiber-MeshPolypropylene mesh fiber, also known as polypropylene fiber mesh, mesh polypropylene fiber, cracking, fiber, fiber works, based on polypropylene as raw material in the molten state after stretch fiber molecular orientation, and then extruded into a thin crackmembrane made of synthetic fibers.
The reticular fibers in the concrete, after mixing, due to friction and impact of the cement, gravel and other aggregates, the fiber network automatically open a root monofilament involved with each other, randomly distributed, resulting in unit volume of concretethe formation of a large number of number of fibers, fiber cement, sand and gravel aggregate wrap cover together to form a strong bond strength, concrete performance is greatly improved. Waterproof layer of the railway bridge, concrete face rockfill dam, bridge deck pavement, tunnels, pumping stations, pools and other projects to get a wider range of applications, with good economic and social benefits.
Second Main advantages
1.inhibition of the concrete plastic shrinkage cracking
Polypropylene mesh fiber can inhibit the plastic cracking of concrete is due entirely to the role of the fiber itself, while the plastic turtle
Crack reduction, will increase the integrity, strength and service life of the building, while reducing the appearance of crack
1、 Enhanced resistance to impact
Polypropylene fiber, concrete, compacting enhancements to anti-impact force will be doubled.
2、 reducing the water permeability
Concrete in the building structure is usually required to prevent the liquid inflow or outflow, such as sewage treatment, tail
Mine the underlying impermeable concrete by adding fiber can prevent the liquid to seep into the concrete, to improve the impermeability of concrete waterproof, frost resistance.
3、 the tenacity and ductility of reinforced concrete
A standard amount of fiber, toughness and ductility of the concrete is about 35%, anti-fatigue performance More than tripled.
4、 the increase in wear resistance and anti-broken force
When the concrete is strong strain or adverse conditions, can easily lead to breakage or cracking of concrete, resulting in completely
Broken. Wear of the concrete for industrial manufacturing areas, such as dams, drainage channels, cold Water CFRD, pumping stations, pool, land as a whole flood discharge drains is essential, after the addition of fiber can effectively increase the concrete wear resistance and anti-broken force.
5、 to prevent the corrosion of reinforced
Reduce to strengthen reinforced concrete corrosion is undoubtedly very important factors are multi-faceted. Plastic
The cracks make steel reinforcement appears to moisture and chloride lead to corrosion, while the addition of fiber jets, reducing the water permeability of concrete, so slow down the corrosion conditions, thus greatly increasing the life of the building, reducing the corrosion rate. This is particularly in some coastal projects, such as reclamation, Bridge, etc., to prevent seawater corrosion of concrete is essential.
Third Application field
1、 A road surface engineering and high crack resistance of the fence, deck, factory floor, the sewage treatment pond, etc., greatly increase the project life.
2、 Shotcrete can be used to tunnel injection, mine tunnel at the top of the sprayed concrete.Using spray technology in concrete construction, the incorporation of reticular fibers can effectively reduce the shotcrete rebound rate, reduce pipe friction, so that the concrete rebound rate does not exceed 8%, the vault does not exceed 12%, improve construction efficiency, improveoperating environment and is conducive to the promotion of the wet spray technique.
3, Water concrete face rockfill dam, river, air defense projects, the roof impermeable treatment.Polypropylene mesh fiber resistance to cracking of the concrete ability to impact wear resistance of the improvement of the useful life of the project has been extended.
4, harbor works, piers, and military protection facilities, pumping stations, pool.
5, thermal power cooling tower, the base of the wind electric poles, such as desalination. The impact of the polypropylene mesh fiber reinforced concrete
Greatly improve the performance of the role of similar projects will enhance safety and useful life.
Fourth the amount of fiber mixing
The mixing amount of concrete cracking fiber: 0.9 ~ 1.8kg / m³ generally mixed with the amount of 0.9kg / m³.
Fifth Usage
1、 Dosage
The ratio of the polypropylene mesh fiber applications per cubic meter of concrete by adding 0.9kg. First of all, according to engineering requirements Service
Ratio to calculate the content, play in the concrete physical reinforced the role of the mixing of fibers can not change the original concrete mix, no special requirements for a variety of aggregate performance indicators.
2, the feeding order
Recommended compulsory mixer, use available artificial fiber and gravel aggregate at the same time to join, it is best to make the fiber in the middle of the aggregate, and then add water to wet mix.
3, mixing time
Stirring goal is the fiber network can be fully dispersed into single-wire or mesh structure is open, mixing time than the plain concrete mix
Mixing time slightly extended to 30 ~ 60S, to ensure that the fiber is uniformly dispersed in the mixture.
4, the molding process
No special requirements, but shall ensure the full tap.
5, the conservation process
No special requirements, according to normal concrete curing process can not be mixed with reticular fibers and relaxation of mixed
Early curing of concrete.
Polypropylene mesh fiber micro strengthen the reinforcement of concrete to meet the perfect technical requirements, and simple in construction,
Only need to complete in accordance with the requirements of operating instructions and on-site practice.
Sixth Specfication and Package
Specfication ：PPF-RY19M。
Package：0.9kg/plastic bag，10.8kg/woven bag。
