Polypropelene Fiber for Concrete(PPF)

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Polypropelene Fiber for Concrete(PPF)


PPF, is also called engineering fiber
concrete fiberanti-crack fibercrack control fibersynthetic fiber or plastic fiber, etc. It is a kind of high intensity bunchy monofilament fiber mainly made of PP by special technique
Put PPF into the concrete or mortar, can effectively prevent temperature change, micro crack caused by plastic and dry shrinkage, etc, thereby prevent and control the happen and development of crack and improve effectively anti-crack
anti-infiltrationanti-concussion and anti- shock of the concrete.
They are used widely in roads
bridgesunderground waterproof projects and roofingswallspoolsbasements of the industrial civil construction

The Physicochemical Properties of PPF

Regular Spec: TB-PP-20S (TB-20)

Material Form

polypropylene

The Type of the Fiber

bunchy monofilament

The shape of section

trefoil or circle

Identical Diamete (m)

15-45

Density(g/cm3)

0.91~0.93

Length(mm)

6,10,12,15,19

Color

nature(white)

Tensile Strength (MPa)

≥500

Elongation at Brea(%)

≥15

Modulus of elasticit (MPa)

≥3500

Melting Point(℃)

160~180

Acid & Alkali Resistance (the holding rate of lightiness) (%)

strong

NoteThe range of length 3-50mm, and according to the your demand

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 skywaysthe underground traffic make requests to the performance of the concrete, e.g. high anti-stretch and anti-compressionhigh toughnesshigh anti-infiltration and anti-crackeasy 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 PPF for the Concrete

1) anti-crack function
TB-Fiber distributes in the concrete in 3D stereo, which reduces the stress concentration of the micro crack point , weakens or removes the tension caused by sun crack of the concrete or mortar, further prevents the happen and development of the micro crack  
For plastic concrete, TB-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
TB-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
TB-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 micro crack. 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.
TB-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 TB-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 substancethe salt of the Cl 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 TB-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
, 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.

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Lime condensation hardening slow, low strength, poor water resistance
Q:Glass beads insulation mortar need to do test pieces or raw materials re-examination?
Do different projects need to produce different sizes of the specimen, see JG / T283
Q:Wall whitewash with 114 mixed mortar, no lime cream can be used to replace what other materials
PUP-261 Epoxy Primer 【Model】 (G type): closed primer coated with dry concrete base at room temperature
Q:Whether the mortar waterproofing agent needs to be sampled for inspection
need According to the specification, the admixture of the approach must have the certificate and the product instruction manual, and then need qualified laboratories according to the proportion of the manual, the trial test, the performance is qualified before allowing the use of construction
Q:Building and decoration materials on the calculation of concrete mortar, urgent solution! The The The The The The The The
The actual strength of the concrete is as follows: Cement: Ordinary silicon, the concrete is the same as the concrete used in the concrete
Q:Brick and concrete structure and frame structure in the force system, the use of building materials and the scope of the three aspects of the difference. Thank you ~ ~ very anxious
There are individual premises roof panel → beam → brick wall, column → foundation → foundation → crust
Q:What waterproof material can be combined with cement mortar to play a waterproof effect?
If the use of flexible waterproof coating to do the bottom, the flexible features of the tensile effect is also good waterproof, mortar waterproof waterproof surface to do, both play a waterproof and protection to serve two purposes
Q:Why is the waterproof material divided into rigid and flexible? Which is better than that?
The material is divided into rigid and flexible according to its characteristics. Rigid waterproof material generally refers to the cement mortar, in its formation of waterproof layer, has a high resistance to pressure, impermeability, but does not have the extension, resistance to structural elongation change ability is not high. The flexible material has good elasticity and plasticity, and the extensibility can adapt to the slight deformation of the structure. See where you use, and if used in home decoration, should be flexible waterproof material as the main material of the construction.
Q:The external walls of the mortar in the insulation mortar need to do what anti-test materials? Can you provide detailed check-in format, please send to my mailbox 467393187@qq.com
The original strength, water resistance, resistance to freeze-thaw, flexibility, compressive strength / flexural strength,
Q:What are the specific specifications of the external wall insulation material re-examination?
This material depends on what material, basically the material of the technical procedures which have requirements, such as inorganic insulation mortar, approach re-test: compressive strength, bulk density, thermal conductivity, thermal conductivity should be punished Every item of insulation material will be re-tested.

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