UHPC SPECIAL SYNTHETIC FIBER(POM)
ready mixed fibre reinforced concrete、Acetal Copolymer fiber for Ultrs-High Performance Concrete(UHPC),is a new plastic material for concrete construction engineering (see the GB/T21120-2018),Using the POM resin slices as its raw material ,this product is made through spinnig ,drafting ,surface treatment,etc.It has superior performance of high strength ,high modulus, high durability ,wide usage temperature range and little influence on workability.
Description
UHPC special synthetic fiber uses hydrophilic modification technology for its surface treatment It has excellent dispersibility in UHPC and has good bonding performance with cement matrix materials which can effectively reduce and inhibit UHPC plastic shrinkage drying shrinkage Micro-cracks caused by temperature changes and other factors significantly improve crack resistance toughening impact resistance fire and explosion resistance of UHPC
Application
l
Building decoration exterior wall
l
UHPC carved artwork
l
Cement flower pot products
l
Municipal road bricks etc.
steel fiber reinforced concrete advantages and disadvantages
POM
FIBER
have
a
number
of
advantages
when
it
comes
to
concrete
reinforcement:
l
High
strength
l
High
modulus
l
Low
elongation
l
Good
adhesion
to
the
cement
matrix
l
Alkali
resistance
l
UV
resistance
l
Low
weight
l
No
corrosion
Technical Information
Fiber dimension | D:0.2mm;L:6/12mm |
Minimum Tensile Strength | >950Mpa |
Modulus | >12Gpa |
Elongation at break | <=30% |
Density | 1.4g/cm3 |
Acid&Alkali Resistance | Excellent |
Moisture Content | <=0.1% |
Appearance | Transparent monofilament |
Guidelines for use
Dosage:the usual dosing amount is 5.0/50.0kg/m3(the corresponding volume dosing amount is 0.4/4.0%).
Length;The length of UHPC should be 6-12mm,according to different thickness of components.
Stirring:After mixing the UHPC powder and water to make the slurry evenly,add the fibers
Curing：The construction and curing process of UHPC after fiber is exactly the same as the system without fiber
Packing:
10 or 20/kg big bag ,700/pallet,7000kg/20’container,14000kg/40’container.
The advantages of reinforcement with POM fibres concrete cladding with aesthetic requirements – other reinforcement variants could also be considered in principle, but they all have specific disadvantages: from the low-strength polypropylene fibre to the alkali-resistant glass fibre (Glassfibre Reinforced Concrete, GRC), which is more difficult to process and less durable.
But POM FIBERS are simply co moulded into the required moulds.
GRC is not only more complicated to work with.This is due to the fact that the performance of such AR or GRC concrete suffers over the years as the alkaline cement matrix causes the fibres to become brittle.
Glass fibre reinforced concrete can crack under compressive loading, while use the POM fiber reinforced concrete has much better ductility.
Reinforcement with conventional fibers, such as PP or ARG, can generally help keep the crack width smaller, but not in the very early post-crack period when it is most needed, according to the supplier. Thus, concrete reinforcement with conventional fibers does not truly work and does not add value to durability especially in heavy-duty concrete structures.
POM fiber helps reinforced concrete precast to extend service life and drives sustainable investment decisions.
