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8/6/2019 Shotcrete-UK

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Steel fbresShotcrete applications

WireSolutions


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WireSolutionsSteel fibres solutions

WireSolutions is partof the ArcelorMittalGroup, the numberone steel companyin the world. Majorproduct lines of theunit are industrialwires (bright,galvanised, annealed,coppered...),agricultural products(fencing, barbed

wire), and steelfibres for concretereinforcement.

ArcelorMittal has been producing steel

fibres for over 30 years and is one of

the leading suppliers of steel fibres

worldwide. Through a local presence,

ArcelorMittal aims to be closer to its

customers to improve its service.

All the fibres manufactured by

ArcelorMittal are made of cold drawn,

high tensile steel wire produced using the

most modern equipment. Our policy of

continuous investment helps guaranteethe durable performance of our products

which are manufactured ISO 9001 and

ISO 14001 standards compliant.

Transforming tomorrow.


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Product range

Steel fbres

ArcelorMittal has overcome challenges byoptimizing the aspect ratio (fibre lengthover effective diameter) and by shapingtheir steel fibres in specific ways. These

deformations can be along the fibre and/orat the extremities.

Aspect ratios between 40-80 are currentlyused. The higher the aspect ratio is, themore difficult will be the handling of afibre. Steel fibres are available in variouslengths from 20 mm up to 40 mm forshotcrete. 30 and 35 mm fibres have beenapplied most successfully. Specifying steelfibres by the dosage rate (kg per cubicmeter of shotcrete) is common, but it is

not in accordance with the latest findings,because of major differences in engineering

properties and performance between thevarious types of fibres. Nevertheless aspecification by performance is more andmore common as it takes into account the

specific characteristics of the differentfibre types (rebound, anchorage, aspectratio).

Ongoing research at ArcelorMittalhas resulted in the development of avariety of steel fibres for shotcrete,each performing best in its specificapplication.

All steel fibres from ArcelorMittal arecold drawn wire fibres and therefore

type I fibres according to ASTM A820and type 1 according to EN 14889-1.

Steel fibre reinforced concrete for shotcrete applications is nowsuccessfully used for many years due to its unique characteristicsand its numerous advantages.

ASTM A820, type I, cold drawn wire fibresEN 14889-1, type 1, cold drawn wire fibres

Range of aspect ratios

Aspect ratio FE l/d: 45,54Aspect ratio HE l/d: 47,64Aspect ratio TABIX l/d: 39

Range of dimensionsDimensions FE d: 0.65 - 0,67 mm l: 30-35 mmDimensions HE d: 0.55 0.75 mm l: 35 mmDimensions TABIX d: 0.90 mm l: 35 mm

Packaging25 kg boxes and big bags of 500 and 1 000 kg

Fibre performance able to cover the full range of actualstandard requirements(EFNARC, SIA, ASTM, all Europeanstandards).

FE

FE (Flat End) fibres are straight fibres with flattened, enlarged ends forimproved anchorage. FE fibres can be applied with minimum rebound loss.The typical tensile strength of the wire is 1 200 MPa.

HE

HE (Hooked End) fibres are straight fibres with additional hooked ends.The HE shotcrete fibre can be used in all shotcrete applications. Commonlyused with dosage of 25 to 50 kg/m3, depending on ground conditions.The HE fibre is shot with low rebound losses. The typical tensile strength ofthe wire is 1200 MPa.

TABIX

TABIX is an undulated steel fibre (1 100 MPa) used in slope and wallapplications without overhead projection.

500

25 30 35 40 45

600

700

800

900

1 000

1 100

1 200 (J)

(kg/m3)

HE55/

35

FE65/

35

TABIX

90/35

HE75/

35


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Applications

ArcelorMittal steel fibres have been used now for years successfully inmany application areas.

Road tunnel

Railway tunnel

Water tunnel

Emergency gallery

Mining

Slope stabilization

01

01

02

03

04

05

01 03 05

04 0602


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Ground and rock support

Repair and refurbishment

Excavation and open pit stabilization

Special applications

07 09

08 10

06

10

07

09

08 07


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Dosing equipment

Easy charging of a dosing unit

Transportation of the big bag by a1)wheel loader or forklift truck over the

dosing unit.Big bag bottom is cut and the fibres are2)dropping down.Vibrating hopper for easy dosing of the3)fibres.

Giving advice for the integration ofthe fibres.

Available dosing units: Automatic dosing unit with

permanent control of fibre dosagerate.

Conveyor belts. Bucket elevators. Steel fibre blowers. Storage and buffer belts.

Assistance for planning andinstallation of dosing equipments.

Possibility to control the dosingequipment by the batching plant ITsystem.

Assistance and service on site.

Easy installation and application: All machinery is plug-and-play.

So any installation can be done. Within a short time and the

production of SFRC can be startedquickly.

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Technical Support

Advantages

Outstandingtechnical support

With worldwide experience and siteassistance, ArcelorMittal is your partnerfor the equipment selection andinstallation assistance, the chemical andadditive recommendation, the right fibre

selection for your application and forthe mix-design for steel fibre reinforcedshotcrete.

With ArcelorMittal fibres, you donot have just pneumatically appliedconcrete, but a steel fibre reinforcedshotcrete of highest quality andreliability!

Steel fibre reinforced concrete forshotcrete applications has now beensuccessfully used for many years due to

its unique characteristics and numerousadvantages:

Ductility of the reinforcement.

Cost savings.

Time savings.

Material savings.

Safe job site.

Easy installation and application.

Providing top technical service tothe customers from job start up untilfinalization of the project.

Giving advice on mix design, fibresselection and dosing equipment in order

to optimize performance and quality.

Giving advice and training to theworkers.

Participating to testing and resultsanalysis.

In our opinion, research & developmentis the key to success. We allow ourcustomers to take profit from ourexperience collected on job-sites

around the world.

Shotcreteconsolidation

Installation

of wire-meshInstallattion

of bolt/anchor

Shocrete

application

Steel FibreReinforced Shotcrete

Installation

of bolt/anchor

Time saving

with SFRS

Conventionalmethod

SFRS

0h 1h 2h 3h 4h

Conventional method

without muckingcompared to Steel Fibre

Reinforced Shotcrete

method (SFRS).


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ArcelorMittalWireSolutionsBP 16L-7703 Bissen

T +352 83 57 72 1F +352 83 56 98

[email protected]

All information in this promotional material shall ill ustrate products and services in a non final way and invite to further technical or commercial explanation; they are not contractual. Copyright ArcelorMittal 2009.

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