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Concrete polyolefin fiber reinforcement of high capacity
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A POLY-FRC reinforcement as a high strength fiber of 100% Polyorefin is thicker, longer and stronger than Polypropylene composite fiber(Vf = 0.1%, 0.9㎏) which has been used as an existing concrete reinforcement fiber and is a FRC reinforcement which can mix up to volume fraction=1˜2%.
An high ratio of mixing volume has better structural capacity effect than the result obtained by the 2nd dimensional reinforcement effect (effect of plasticity/shrinkage/crack control). Super POLY-FRC, therefore, is used instead of steel fibers and wire meshes.
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Sort
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Name
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Type & Length
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Characteristic
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POLY-FRC I
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Dia: 0.38, 0.63㎜
Length: 25, 50㎜
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Distribution is excellent.
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POLY-FRC II
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Width: 1.8㎜
Thickness: 0.84㎜
Length: 30㎜, 50㎜
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Distribution
and adhension are
excellent by making
an surface
hydrophile property.
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POLY-FRC III
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Dia: about 0.9㎜
Length: 30, 50㎜
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Increment
of adhension and
softness
property.
Increment of
a resisting force
against bending, fatigue and
impact of
a moving load.
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Shapes of products listed above are made precisely for a pullout resisting force so as to enhance capacity after a crack is created by a concrete reaction and manufactured precisely in order to enhance structural capacity by settling down in concrete effectively.
Specially, they enhance a resisting force against a moving load, bending and fatigue by increasing the optimum tension and softness property of hardened shotcrete.
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[Shotcreting figure for stabilization of a rock bed] |
[Shotcreting figure
by pieces] |
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Gravity
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0.91
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Elastic Coeff.
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35,000 ㎏f/㎠
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anti-acid/alkaline
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Very
High
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melting
point
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160℃
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Tension strength
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4,500 ㎏f/㎠
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Tension rate
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15%
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The POLY-FRC reinforcement of high capacity is contributed to enhance structural capacity because of mixing much more composite fibers than the existing plain concrete reinforcement fibers and increases endurance and softness property by enhancing a resisting force against fatigue and impact of a moving load.
A steel fiber which has been used until now has bad stability and an economic loss because rebounding volume increases with its heavy load shotcreting. There are many problems in structure or in apperance because it is rusted where an underground structure contains much moisture and underground water is infiltrated.
What is developed to solve these problems is an high strength POLY-FRC reinforcement and its characteristic is what solved the problem of a function loss caused by rusts because self-weight is little and it resists strongly against moisture.
A welding iron cage taking a lot of time is not required.
Increment of shotcrete adhesion and reduction of rebounding
Increment of one time shotcreting thickness
Easy shotcrete pumping(pumping is soft and easily uniformed by a pumping pressure reduction)
Increment of endurance against fatigue and a repetition load.
Increment of endurance against impact and damage.
Better than 2nd reinforcement effect, and endurance against a larger load.
Excellent crack control with three dimensional reinforcement.
Increment of work safety(compared to steel fibers)
Less abrasion of a mixer.
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concrete pavement structures (freeways, upper decks of bridges, moorings, farm
roads and others), tunnel linings, median strips, protective walls, structures of water
supply and drainage, dams, canals, ocean structures, concrete slab decks (parking
lots, storages, plants, flat works), walls and floor finishing mortar.
The POLY-FRC reinforcement is harmonious with all kinds of compound materials and has good influence on them. Any separate additive is not required in order to use the POLY-FRC..
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Items
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Contents
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Standard Vol
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9kg/1㎥ of comncrete(packing unit:9kg/bag)
Increased by the specific purpose.
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Mixing Plan
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Each mixing plan is required for each structure.
The POLY-FRC reinforcement is functioned by a physical action,not by a chemical action.
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Mixing Method
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Input: pour directly required volume into a batch plant or a site mixer.
Mixing time: depending on manufacturing volume.
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Concreting
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Same as plain concrete
Workability
:A slump is somewhat shown by aggregate sinking,but workability is same as plain concrete.(Water must not be added after a naked eye inspection is taken)
Same as plain concrete.
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Finish
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Start to finish when bleeding water is run dry.
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A pack is 9kg/bag and it is possible to to be packed specially by the customers'requests.
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[POLY-FRC Ⅰ]
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[POLY-FRC Ⅱ]
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[POLY-FRC Ⅲ]
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