Carbon Fibre Sheet Spec

8/10/2019 Carbon Fibre Sheet Spec

1/4

Page 1

Nitowrap Carbon FibreSheet

Nitowrap Carbon Fibre Sheet is a highstrength composite laminate structuralstrengthening system for concretestructures.

Uses

For structural repair and strengthening works of :-

Beams

Columns

Floor Slabs

Walls

In the following structures :-

Commercial, High Rise

Industrial plants

Warehouses

Bridges

Tunnels

Jetties

Pipes

Culverts

Chimneys

Advantages Very high strength

Improves flexural and shear capacity

Excellent fatigue resistance

Easily wrapped : giving flexibility in application with

minimum manpower and maintenance free

Fast installation : giving quick return to service

Non cording : can be used in a wide variety of

chemical / corrosive environments

Proven history with many successful overseas

aoolication

Light weight : adds minimal weight to the

strengthened structure

Low buid system : giving minimal effect on

structural dimensions and clearance

Ease of use : very light, allowing use in areas of

difficult access

Final coating can be applied without preparation

Simple detailing for application

Standard Compliance

Nitowrap Carbon Fibre Sheet has been tested underJapan International Standard and the test methodconducted are :-

Nitowrap Carbon Fibre Sheet

Characteristic Tested Test Method

Fibre Density (g/m 2) JIS K 7071Tensile Strength (KN/m-Sheet width) JIS K 7073

Tensile Modulus (N/mm 2) JIS K 7073

Nitowrap SKPS Primer


Viscocity @ 20 OC (cps) JIS K 7117

Specific Gravity @ 23 OC JIS K 7112

Pot Life @ 20 OC (min) Calorific method

Drying Time @ 20 OC (hrs) JIS K 5400

Concrete Adhesion Strength (N/mm 2) JIS K 5400

Nitowrap SKPS Resin


Viscocity @ 20 OC (cps) JIS K 7117

Specific Gravity @ 23 OC JIS K 7112

Pot Life @ 20 OC (min) Calorific method

Drying Time @ 20 OC (hrs) JIS K 5400

Concrete Adhesion Strength (N/mm 2) JIS K 5400

Tensile Strength (N/mm 2) JIS K 7113

Flexural Strength (N/mm 2) JIS K 7203

Compressive Strength (N/mm 2) JIS K 7208

Tensile Shear Strength (N/mm2

) JIS K 6850Durability description

Nitowrap Carbon Fibre Sheet tensile strength can be stable

for 10,000 hours with accelerated exposure test (it is

equivalent to 30 years natural exposure), providing :-

a) It is used in strict accordance with the

manufacturers recommendations.

b) It is used within the design parameters stated in

this datasheet.

constructive solutions


2/4

Page 2


c) It is used in conjuction with other approved building

systems and materials.

Durability covers weathering and adhesion characteristics.For conditions outside those stated in this datasheet,

contact our Technical Specifications Department.

Fosroc reserves the right to modify this time period,

depending on but not limited to, climatic, site and

environmental conditions such as chemical attack, abrasion,

water immersion and adverse climatic and temperature

conditions. Any FOSROC coating systems applied will achieve a

minimum of 10 years durability. Consult FOSROC Technical

Services for further advice.

Method Carbon Fibre Reinforced Concrete Steel Jacket

Outline Carbon fibre sheet is bonded directly

to concrete structure surface

Concrete is placed on existing

concrete surface to

accommodate additionalreinforcement increasing cross

section of existing concrete

structure

Steel plate is applied to

concrete surface with resin

and mechanical fixings

Application &

Characteristics

Newer method

Non corrosive and durable

Especially effective to

improve flexural capacity

No appreciable increase in

volume of structure (approx.

1.0mm thick)

Widely used method

Overall dead load

increases hence the

sub structure must be

checked to assess

need for under pinning

New reinforcement

must be properly

anchored to produce

the desired effect

Widely used method

Steel plate tends to

corrode if not

maintained and

requires periodic

painting and repair

Ease of work

execution

Easiest and safest to apply

Can be applied to any shape

of concrete surface

Requires no heavy

machinery; so can be used

in any space

Rapid gain in structural

strength

Requires chipping

concrete surface to be

repaired

Requires troublesome

concrete placing

Requires access for

concrete placement

(e.g. truck) Slow gain in structural

strength

Difficult to use in

confined spaces

Requires access for

a crane / hoisting

machine

Requires welding of

steel plate joints

Medium installationrate

Rapid gain in

structural strength



3/4

Page 3


Application

The following is a generalized application method for

Nitowrap Carbon Fibre Sheet which may vary according to

the specific application. Full details are found in the

Nitowrap Carbon Fibre Sheet Method Statement.

Method Statement

1. Clean and make good the concrete surface.

Grinding and fairing may be required. Concrete

repair may be required. Consult Fosroc

Technical Services for the appropriate repair

system.

2. Apply Nitowrap SKPS Primer at a rate of 300

gm/m 2.

3. Apply Lokfix EP to fill anu voids.

4. Apply first coat Nitowrap SKRS Resin at a rate of

300 gm/m 2.

5. Lay in Nitowrap Carbon Fibre Sheet as specified

ensuring full impregnation by using impregnation

roller.

6. Apply second finishing coat of Nitowrap SKRS

Resin at a rate of 300 gm/m 2.

7. Leave the sheet for 24 hours until initial cure is

reached.

8. Coat exterior or exposed surfaces with

Deckguard S or fireproofing coating (if

necessary).

If multiple layers are required, then repeat steps 5

and 6.

Packaging

Nitowrap Carbon Fibre Sheet is supplied by linear metre.

Each roll is 500 mm wide x 100 meter length. Nitowrap

Carbon Fibre SKPS Primer and Nitowrap SKPS Resin is

supplied in 15 kg pack.

Limitation

Nitowrap Carbon Fibre Sheet is only recommended for

uses as described in the uses section of this datasheet.

The performance of Nitowrap Carbon Fibre Sheet is

limited to the specifications and recommendations as

determined in the design manual.

Overcoating

Nitowrap Carbon Fibre Sheet may be overcoated with one

of FOSROCs Architectural Finishes including Fosroc

Deckguard S. Consult Fosroc Technical Services for

further advice.

Technical Support

FOSROC offers a comprehensive range of high

performance, high quality repair, maintenance and

construction products. In addition, FOSROC offers a

technical support package to specifiers, end users and

contractors, as well as on site technical assistance in

locations all over the world.

Design

Design aspects are covered in a separate Design Manual.

A design service can be supplied by FOSROC under a

special:



4/4

Page


Fosroc Sdn. Bhd.No 8 Jalan Trompet, 33/8Seksyen 33, 40400 Shah AlamSelangor, Malaysia.

Branch Office:29, Jalan Zainal Abidin,10400 Penang, Malaysia.

www.fosroc.com

Physical Properties

Nitowrap Carbon Fibre Sheet

Grade SK-N200 SK-N300 SK-H300

Fibre

Fibre Density (g/m 2)

SK Carbon Fibre Sheet width, mm

Design Thickness (mm)

Tensile Strength For Design (N/mm 2)

Tensile Modulus For Design (N/mm 2)

Ultimate Elongation (%)

High Strength CF

200

500

0.111

3550

2.35 x 10 5

1.5

High Strength CF

300

500

0.167

3550

2.35 x 10 5

1.5

High Modulus CF

300

500

0.165

3000

3.80 x 10 5

0.8

Remarks

~ Nitowrap Carbon Fibre Sheet Width : 500 mm (Length : 100 m/box, 50 m 2/box)

~ 1 ply layer thickness after working is 0.6 ~ 1.0 mm

Nitowrap SKPS Primer

Grade SKPN SKPS SKPW

Type

Application Temperature ( OC)

Pot Life (minute)

Setting Time (hours)

Mixing Ration by weight (Resin:Hardener)

Viscocity (cps) @ 20 OC

Solvent Content

Standard

15 ~ 25

45 @ 20 OC

Within 11

2:1

1,300

None

Summer

25 ~ 35

40 @ 20 OC

Within 15

2:1

2,000

None

Winter

5 ~ 15

40 @ 10 OC

Within 9

2:1

1,000

None

Nitowrap SKRS Resin

Grade SKRN SKRS SKRW

Type

Application Temperature ( OC)

Pot Life (minute)

Setting Time (hours)

Mixing Ration by weight (Resin:Hardener)

Viscocity (cps) @ 20 OC

Solvent Content

Standard

15 ~ 25

45 @ 20 OC

Within 11

2:1

5,000

None

Summer

25 ~ 35

40 @ 30 OC

Within 15

2:1

7,000

None

Winter

5 ~ 15

40 @ 10 OC

Within 9

2:1

4,000

None

telephone:+60 3 5191 5660

+60 4 2287 464

fax:+60 3 5191 6960

+60 4 2292 661

email:[email protected]

Important noteFosroc products are guaranteed against defective materials and manufacture and are sold subject to its standard Conditions for theSupply of Goods and Services, copies of which may be obtained on request. Whilst Fosroc endeavours to ensure that any advice,recommendation, specification of information it may give is accurate and correct, it cannot, because it has no direct or continuous controlover where or how its products are applied, accept any liability either directly or indirectly arising from the use of its products, whether ornot in accordance with any advice, specification, recommendation of information given by it.

MAL/0901/09/A

Documents

Carbon Fibre Sheet Spec