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SUPER CON-CEL: administrator; 2008-10-09 14:34:50; 4494

Cellulose fiber reinforcement of hydrophile property for the crack

Cellulose fiber reinforcement of hydrophile property for the crack

prevention of concrete/mortar.

SUPER

CON-CEL

Certification of
korea New

Technology(NT)

1. What is CON-CEL?
The main component of CON-CEL is wood which has excellent anti-freezing nature, strength, tension and stifness. The CON-CEL extracted from this wood is manufactured precisely as a cylindrical pellet so that dispersion, automatic weighing and input can be easy in the mixing process of concrete/mortar.


[Cellulose Fibers Enlarged by 400 times]	[Finished Product of CON-CEL]

2. Characteristic and action of CON-CEL
CON-CEL is well dispersed within concrete and has strong adhesive strength to cement as a specially processed product to enhance capacity. The surface of Hydroxyl enforces dispersion and adhension, and makes the cement compound body more compact because of having an tiny validity diameter. It, with a relatively wider surface area(0.13㎠/g), plays an very efficient role in improving dynamic nature of the cement compound body because of enhancing strength to resist against tension and impact of the cement compound body by bridging between fibers and stabilizing and repressing a tiny crack having many fibers per cubic volume.

What is Super CON-CEL?

As Hydroxyl-Concrete/mortar fiber reinforement of hydrophile property

-crack prevention, tension strength, increment of flexibility; increment

of endurance(quality improvement)

[Packing Structure of Polypropylene Fibers and CON-CEL]

When a Polypropylene fiber of 0.9㎏/㎥ is used.

Fibers/cubic volume: 0.6/㎤

When CON-CEL of 1.2㎏/㎥ is used.

Fibers/cubic volume: 1,100/㎤

A Poypropylene fiber has space caused
by a crack because a fiber itself is large.

CON-CEL, with a tiny validity diameter and
many fibers/cubic volume, has no space to be caused
by a tiny crack and is very efficient for crack
prevention because of making concrete compact.

3.Drying-Shrinkage-Crack Control characteristic of CON-CEL

CON-CEL has a characteristc of excellent plasticity and drying-shrinkage-crack control. The surface of CON-CEL as Hydroxyl has excellent adhesive capacity to a cement matrix because many fibers per cubic volume with a tiny validity diameter of fibers control efficiently the creation and growth of tiny cracks.

[Comparison of the shrinkage-crack reduction result of plain fiber, PP fiber and CON-CEL]

Classification	Plain	PP Fiber(0.9㎏)	CON-CEL(1.2㎏)
Crack Width(㎜)	0.23	0.11	0.05
Crack Area(㎟)	18.15	5.10	2.60
Crack Reduction Result(%)		71.90(-)	85.67(-)

[Shape of the shrinkage-crack reduction result when plain fiber,
PP fiber and CON-CEL is used as a reinforcement]


[Plain concrete]	[Polypropylene fiber]

[CON-CEL fiber]	[Comparison of the shrinkage-crack reduction rate of plain fiber, PP fiber and CON-CEL]

4. Slump, Air volume and Finish for the Application of CON-CEL
If CON-CEL is used, air volume will be increased and a slump be decreased. CON-CEL, however, has an excellent adhesive capacity to a concrete matrix and a slump reduction is similar to Polypropylene fiber reinforcement concrete because a validity diameter of fibers is tiny. CON-CEL is also finished excellently because a validity diameter is tiny.

5.Dynamic Feature of the Application of CON-CEL
CON-CEL is used on purpose to improve concrete movements and control partially initial plasticity and a shrinkage and a crack created by the volume change of constrained concrete.
⊙. Compression Strength: when the compound rate of CON-CEL is 0.08%, it is influenced on the increment of compression strength, compared to what doesn't mix fibers with plain and high strength concrete.
⊙. Bend capacity(bend strength and tension): Compared to the bend capacity of plain concrete, CON-CEL influences on the increment of bend capacity and specially shows the best result when a compound rate is 0.08%.

[Comparison of the Bend Strength of Plain,

PP Fiber and CON-CEL]

[Comparison of the Bend Capacity of Plain,

PP Fiber and CON-CEL]

6.Physical Properties of CON-CEL

Quality	Cellulose Fiber
Elastic Coefficient(kgf/㎠)	6.1 × 10⁴
Adhesion Strength(kgf/㎠)	15.3
Gravity	1.5
Average Length of Fiber(㎜)	2.92
Validity Diameter(㎜)	0.015
Aspect Ratio	200
Tension Strength(㎏f/㎠)	5,100
Fibers(each)/g	1,100,000
Fibers(each)/1㎤	1,100

[Chemical formula of CON-CEL]

◈.CON-CEL with an Hydroxyl surface has strong adhesive strength to cement and makes the cement compound body more compact because an validity diameter is tiny.

◈.CON-CEL, with many fibers per cubic volume, stabilizes by repressing a tiny crack within the cement compound body, plays a bridging role between fibers and enhances strength to resist against tension and impact of the cement compound body.

7.Application Effect of CON-CEL

●.Shrinkage and crack prevention of concrete/mortar

●.Toughness increment for impact and ruins

●.Bend tension increment of a structure

●.Toughness increment for abrasion and erosion

●.Toughness increment for a fatigue and repetition load

●.Reduction of water permeability (reduction of reinforeced bar corrosion)

●.Toughness increment of freezing dissolution

●.Reduction of aggregate sinking(when concreting)

●.Wiremesh or metal lace not necessary

●.Reduction of rebounding volume

8.How to apply CON-CEL
CON-CEL as an hydrophile property fiber is harmonious with any compound material and has a good influence. Any additive is also not required separately.

Items	Contents
Standard Volume	Standard Usage Vol: 1.2㎏(bag)/1㎥ of Concrete/mortar Volume can be increased according to a specific purpose or site condition.
Mixing Plan	No change: CON-CEL is treated as an additive without regard to a mixing plan.(reinforcement function of concrete/mortar is created by a physical action, not by a chemical, and the mixing plan is not influenced because the content of CON-CEL is extremely little[less than 0.08% of volume])
Mixing Method	Input: input directly required volume into a conveyor or a mixing drum such as a batch plant and a site mixer(if an automatic weighing device is installed, it is easier) Mixing time: In case of input directly into a batch plant or a site mixer, it depends on manufacturing volume (mixing)time.
Concreting	Being identical with plain concrete/mortar. Workability: a slump is shown a little bit because it has an strong adhesive strength to concrete because a surface is Hydroxyl. Workability is decreased, but water must not be added after a naked eye inspection is taken.
Finish	Being identical with plain concrete/mortar. Start to finsish when bleeding water is run dry.
Applicable Structures	There are 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.

9.Packing Unit of CON-CEL

There are 1.2kg/bag and 500kg/bag. It is possible to pack specially according to the customer's order requests.

. The packing unit of SUPER CON-CEL-Q for mortar is also identical.

Pack of SUPER CON-CEL is 1.2kg/bag(10bags/box)

Characteristic and Capacity Comparison with SUPER CON-CEL,

Composite Fiber(PP Fiber) and Wire Mesh

Items	SUPER CON-CEL	Composite Fiber(PP Fiber)	WireMesh
Reinforcement Type	Three Dim Rein	Three Dim Rein	Plane Reinforcement
Physical Properties	Hydrophile Property Fiber	Anti-Hydrophile Property Fiber	Anti-Hydrophile Property
Anti-Chemical Properties	Anti-acid, Good anti-alkaline	Anti-acid, Good anti-alkaline	Bad anti-acid
Waterproofing	Good	Good	Bad(Erosion)
Usability and Construction	Easy to handle Pour into the ready mixed concrete plant and the site mixer to mix. Good finish(fiber length is less than 5mm,gravity is 1.5 and not seen during mixing)	Easy to handle Pour into the ready mixed concrete plant and the site mixer to mix. Usage after mixing(not easy to input by force) Bad finish(fibers exposed,length 18mm, ravity0.9)	Not good to handle(may be damaged) Hard to install at a site and to keep a covering thickness
Usage Effect	Excellent crack prevention for plasticity shrinkage-crack and drying shrinkage-crack Increment of tension, anti-impact and a tension force by playing a bridging role of hydrophile property in concrete/mortar. permeablity is reduced and anti-freezing nature is increased. Reduction of aggregate sinking.Increment of Long term endurance. Omission of wiremesh and metal-lace	Crack reinforcemnet effect has been certified, but a tiny crack is caused continuoulsy. Tension and anti-impact in concrete/mortar is increased more than that in plain concrete, but the value of adhesion strength to cement at initial hardening time and elastic codefficient is small because it's an anti-hydrophile property fiber. When the cement compound body is transformed, it is plucked. Bad anti-freezing nature and anti-permeablity. Reduction of aggregate sinking. Omission of wiremesh and metal lace.	Insufficient crack prevention effect Reduction of long term endurance
Characteristic	An Hydroxyl surface is dispersed well and has an strong adhesive strength to cement. has ecxcellent crack prevention with many fiber per unit volume and makes concrete/mortar more compact.	A fiber is thick and dispersion and water permeablity as anti-hydrophile property is bad. When the cement compound body is transformed, it is plucked. Due to low gravity,it can be projected or floated on the surface. few fibers per unit volume.	Anti-hydrophile property, Plane reinforcement effect is not enough. A part was used in only Korea worldwidely.

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