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| Polypropylene
Fiber—Mesh |
With polypropylene as its raw material,
this fiber is produced by special technology. The products
appear net-like structure with many fiber monofilaments
connected.
When the fiber is put into the concrete, the horizontal
structure in fiber monofilament can be destroyed in
the course of stirring owing to friction and rubbing,
and the fiber monofilament or net-like structure will
fully stretch, thus the concrete is reinforced by a
great number of polypropylene fibers.
As a new type concrete-strengthening fiber, it becomes
a new popular subject in the field of fiber concrete
research and application after glass fiber and steel
fiber.
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Technical
Data: |
| Density(g/cm3) |
0.91 |
Elastic Modulas (MPa) |
>3500 |
| Length(mm) |
6,10,12,15,20 |
Equivalent Diameter m) |
100 |
| Shape |
Beam-like Net |
Crack Elongation(%) |
≥10 |
| Acid &Alkali Resistance |
Strong |
Water-Absorbency |
No |
| Tensile Strength(MPa) |
346-560 |
Melting Point(℃) |
160—170 |
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Reinforced
Functions to Concrete |
| Compared with steel fiber, full-dispersed
polypropylene fiber has advantages in its thinness,
large amount, non-water absorbency, strong acid &
alkali resistance and similar elastic modulus with that
of concrete. The reinforced functions run as follows;
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| +Increase seepage resistance
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| +Prolong endurance |
| +Improve steel protection |
| +Increase cracking resistance |
| +Increase fire resistance |
| +Strengthen spurt & fatigue |
| +Improve tensile, bending & folding
strength |
| +Improve plastic deformity
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| +Strong acid & alkali resistance
and good endurance |
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Suitable
Fields for Polypropylene Fiber-Mesh |
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Projects like concrete road, bridge, airport
road and factory floor which strictly require
cracking resistance. The life span of these
projects will be lengthened for 5-10 years.
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The walls of tunnels, mines, roofs and
reservoir projects with special construction.
When using spray technology in concrete construction,
the polypropylene fiber added into the concrete
can effectively decrease the spray concrete's
deformation rate of the walls less than 8%
and that of the roof less than 12%, and also
can reduce the friction. It can improve the
constructing efficiency and working environment
and popularize the spray technology. |
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River courses and dams, etc. The polypropylene
fiber can improve concrete's resistance to
crack and squirt and wear to lengthen projects'
life span. |
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Military defense works, dock banks and
piers, etc. This fiber can greatly strengthen
the concrete's spurt resistance and heighten
these projects' safety and lengthen their
life span. |
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