• Description: Dramix® fibres are filamentsof wire, deformed and cut tolengths, for reinforcement ofconcrete, mortar and othercomposite materials. Dramix®

RC-80/60-BN is a cold drawnwire fibre, with hooked ends,and glued in bundles.

1 Equivalent flexural strength

2 Equivalent axial tensile strength

- ffctm,eq,300, ffctk,eq,300 = average and characteristicequivalent flexural strength toa deflection of 1,5 mm according toNBN B 15-238, 239, JSCE-SF4 andCUR35.

- ffctm,eq,150, ffctk,eq,150 = average and characteristicequivalent flexural strength to adeflection of 3 mm according toNBN B 15-238, 239, JSCE-SF4 andCUR35.

(1) fctm,fl = mean flexural tensile strength of plain concrete (N/mm2).(2) Concrete class corresponding with fctm,fl according to ENV 1992-1-1.(2) Boxed value [0,5] is replaced by the value 0,6 in formula (3.1).

ffctk,eq,300 = 0,7 x ffctm,eq,300 According to Dramix® guideline unless ffctk,eq,150 = 0,7 x ffctm,eq,150

} more specific data available.

Dramix® RC-80/60-BN

- Equivalent axial tensile strength = 0,37 x equivalentflexural strength.

• Tensile strength:- on the wire: minimum 1050 N/mm2

- low carbon conforms to: - DIN 17 140-D9- low carbon conforms to: - EN 10016-2 - C9D

• Applications:- jointless floors- suspended ground slabs- jointless floors on- vibrocompacted piles- industrial floors- slabs on vibro-- compacted piles

• A- liquid tight floors- overlays- pavements- segmental linings- compression layers- cellar walls- precast

• Geometry:

• Approvals:

• Technical data:For industrial floors, floors on vibrocompacted piles,jointless floors... ask for specialized documentation.

• Coating: None

Product Product

Quality System inBelgian Brasilian, AmericanPlants and Czech Plants

Conforms to

ASTM A820

60 mm

Length (l) Diameter (d)

0,75 mm

Performance class: 80

Aspect ratio (= l/d): 80

4565

80

l/d

fctm,fl 3,7 4,3 4,8 5,3 5,8(1) � (C20/25) (2) (C25/30) (C30/37) (C35/45) (C40/50)

Dosage ffctm,eq, ffctm,eq, ffctm,eq, ffctm,eq, ffctm,eq, ffctm,eq, ffctm,eq, ffctm,eq, ffctm,eq, ffctm,eq,� 300 150 300 150 300 150 300 150 300 150

20 2,1 1,9 2,4 2,3 2,8 2,6 3,0 2,8 3,2 3,0

25 2,5 2,3 2,9 2,7 3,2 3,0 3,5 3,2 3,7 3,3

30 2,8 2,7 3,3 3,1 3,6 3,3 3,9 3,5 4,1 3,6

35 3,2 3,0 3,6 3,3 3,9 3,6 4,2 3,8 4,4 3,9

40 3,5 3,3 3,8 3,5 4,2 3,9 4,4 4,1 4,6 4,2

45 3,7 3,4 4,0 3,6 4,3 4,0 4,6 4,2 4,8 4,3

50 3,9 3,5 4,2 3,7 4,4 4,1 4,8 4,3 5,0 4,4

80

PRODUCT DATA SHEET

BBright

45 N45

6580 Low

Carbonl/d

R 50L -80/60-

BEKAERT

Dramix®

C

9002

1631

ATG 1857Belgium

TC-07-0116-98Russia

AT-15-2117/2001Poland

015-07/012-1997Romania

Z-71.4-3Germany

TS 10513Turkey

The Netherlands

4600 fibres/kg

3 Stress-strain diagram

For steel fibre reinforced concrete, the followingstress-strain diagram applies (symbols conform to Eurocode 2 and Dramix® guideline).

4 Equivalent shear strength

The design value of the increase in shear strengthdue to steelwire fibres:τfd (N/mm2) - (material safety factor included).The contribution of concrete and stirrups must beadded to this contribution of the wire fibres.

(1) fctm,fl = mean flexural tensile strength of plain concrete (N/mm2).(2) Concrete class corresponding with fctm,fl according to ENV 1992-1-1.(2) Boxed value [0,5] is replaced by the value 0,6 in formula (3.1).

Please also consult the Dramix® guideline

Values based on concrete fctm,fl = 4,8 N/mm2. To be used up to C40/50.

fctm,fl 3,7 4,3 4,8 5,3 5,8(1) � (C20/25) (2) (C25/30) (C30/37) (C35/45) (C40/50)

Dosage� τfd τfd τfd τfd τfd20 0,18 0,22 0,24 0,27 0,30

25 0,21 0,25 0,28 0,31 0,35

30 0,24 0,29 0,32 0,35 0,40

35 0,26 0,31 0,35 0,38 0,43

40 0,28 0,34 0,37 0,41 0,47

45 0,30 0,36 0,40 0,44 0,50

50 0,31 0,38 0,42 0,46 0,52

5 Toughness values

Dosage � Re1,5 (%) Re3 (%)

15 45 42

20 56 52

25 65 60

30 74 68

35 80 75

40 86 80

45 90 86

50 94 90

Values are indicative only. Modifications reserved. All details describe our products in general formonly. For ordering and design only use official specifications and documents. N.V. Bekaert S.A. 2002

N.V. Bekaert S.A. - Bekaertstraat 2 - 8550 Zwevegem - BelgiumTel. +32 (0) 56 / 76 69 86 - Fax +32 (0) 56 / 76 79 47

Internet: http://www.bekaert.com/building

Dramix® RC-80/60-BN

Dramix® RC-80/60-BN

ffc

0,4 ffc

Ef,c,nom

ε0,37 ffct,eq,1500,37 ffct,eq,300ffct,ax

1‰10‰

if ffct,eq,300 is not knownσ

simplification

if ffct,eq,300 is not known then ffct,eq,300is taken equal to ffct,eq,150

BBright

45 N45

6580 Low

Carbonl/d

R 50L -80/60-Dramix®

C

Recommendations - mixing

1. General✓ preferably use a central batching

plant mixer✓ recommended maximum dosage:

✓ a continuous grading is preferred✓ mix until all glued fibres are separated into

individual fibres. Fibres don’t increasemixing time significantly.

✓ if special cements or admixtures are used, a preliminary test is recommended

2. Fibre addition2.1. In batching plant mixer

✓ never add fibres as first component in the mixer

✓ fibres can be introduced together withsand and aggregates, or can be added in freshly mixed concrete

✓ only for drummixer: unopened degradablebags can be thrown directly in the mixer

2.2. Truckmixer✓ run mixer at drum speed: 12-18 rpm✓ adjust slump to a min. of 12 cm

(preferably with water reducing agents orhigh water reducing agents)

✓ add fibres with maximum speed of 40 kg/min

✓ unopened degradable bags can be addedprovided that drum speed is min. 12 rpm

✓ optional equipment: belt-hoist elevator✓ after adding the fibres, continue mixing at

highest speed for 4-5 min. (± 70 rotations)

2.3. Automatic dosing✓ Fibres can be dosed from bulk at rates

from 0 up to 3,5 kg/sec with a speciallydeveloped dosing equipment

Max.Dosage (kg/m3)aggregate

size (mm) pour pump8 60 45

16 50 3532 35 30

Recommendations - storageDelivered in

degradablebags of 20 kg

on pallet1200 kg

big bag1100 kg

Do not stack the pallets on top of

each other

Protect the pallets against rain

Res

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Team

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