fibre reinforced polymer

MBrace™

Composite Strengthening System

An Advanced Technique in Retrofitting

MBT (Singapore) Pte Ltd

2

IntroductionCollapse of Hotel New World

15th March 1986

UnderdesignShoddy WorkmanshipCorner Cutting

3

Introduction921Taiwan Earthquake

Major Earthquake with magnitude of 7.6 on the Richter scale

4

IntroductionCoverage of Presentation

• Why Strengthening?

• Conventional Strengthening Techniques

• MBraceTM Composite Strengthening System– Features & Benefits– Areas and Ways of application– Installation Procedure– Basic Design Understanding– Research and Testing– Some Completed Projects

5

IntroductionWhy Strengthening?

ERRORS IN DESIGN STAGE

• Design Errors– Loading Specification– Material Specification– Change of Code

• Drafting Errors

• Assumption Errors

SERVICE STAGE

• Overloading

• Change of use

• Upgrading• Environmental factors

• Earthquake/Seismic forces

• Lack of regular maintenance

• Concrete deterioration

• Bomb blast

CONSTRUCTION ERRORS

• Poor Construction Practices – Insufficient compaction– Inadequate curing time

• Poor Workmanship

• Lack of proper supervision

6

Construction error - Missing confinement steel

Corrosion of reinforcement

steel

Crack

IntroductionWhy Strengthening?

Steel reinforcement buckled dueto seismic forces

7

IntroductionSome of the Traditional Strengthening Techniques

STEEL PLATE BONDINGSTEEL PLATE BONDINGJACKETING/ENLARGEMENTJACKETING/ENLARGEMENTEXTERNAL POST-TENSIONINGEXTERNAL POST-TENSIONING

8

Construction Chemicals

07 / 2006 – Klaus Kamhub

er

Strengthen StabilizeRepairStrategy?

LoadCarrying

Type?Passive Active

Strengthening Process

9



er

Passive and Active Design

Passive Strengthening

Active Strengthening

10

Strengthening Process

RepairStrategy

Technique ?

Enlargements & Overlays

Composite Construction

Post-Tensioning

External Grouting

Internal Grouting

11

STEEL PLATE BONDING• Disadvantages

– Bulky set-up– Labour and Time intensive– Difficult to align and install– Design needs to cater for weight

of steel plates– Requires heavy equipment– Steel plates need to be tailor

made– Drilling and bolting cause further

distress

Some of the Traditional Strengthening Techniques

12


JACKETING• Disadvantages

– Bulky set-up with massive formwork

– Labour and Time intensive– Fairly destructive– Improper bond between new and

existing concrete– Different shrinkage rate of old

and new concrete – Offset from original alignment

Existing profileEnlarged profile

13



er

CompressiveUpgrade

StrengtheningTechniques

before...

12

14



er

CompressiveUpgrade


...after

3

15



er

Flexural Upgrade


New reinforcement

16


EXTERNAL POST-TENSIONING• Disadvantages

– Labour and Time intensive– Requires special equipment– Requires specialised skills– Requires easy access to work area– Fairly destructive– Uneven surface finish – Offset from original alignment– May not be aesthetically acceptable

17

An Advanced Technique in Retrofitting

MBrace™Composite Strengthening System

18

Fiber Reinforcement Technology

25 years in AerospaceLow weightHigh tensile strengthNon corrosiveEasy installation

19

MBraceTM Composite Strengthening SystemHistory of Composite Strengthening

• Used in the aerospace and manufacturing industry for 25 years

• Used in structural strengthening for more than 10 years.

20

Strengthening Application

Change in useConstruction or design defectsCode changesSeismic retrofit

21

FiberReinforced

Polymer

22

Types of Fiber

23

MBraceTM Composite Strengthening SystemIntroduction to Composite Strengthening

Fibre

Polymer Matrix

MBraceTM Composite Strengthening System

24

MBraceTM Composite Strengthening System

25

MBrace Composite Strengthening System

MBrace PrimerMBrace PuttyMBrace SaturantMBrace Carbon FiberMBrace Topcoat (optional)

26



er

Carbon Fiber

27



er

Fiber Material Behaviour

0

1000

2000

3000

4000

Tensile Strain (in./in.)

Tens

ile S

tres

s (M

Pa)

Carbon

Aramid

Glass

0.000 0.010 0.020 0.030 0.040 0.050 0.060

28



er

Primer, Putty & Saturant

29



er

Mixing

30



er

Tools

31



er

32



er

1. Roll MBrace Primer1. Roll MBrace Primer

2. Level Surfaces with 2. Level Surfaces with MBrace PuttyMBrace Putty

3. Apply First Coat of 3. Apply First Coat of MBrace SaturantMBrace Saturant

Easy InstallationEasy Installation

33



er

4. Apply MBrace Fiber 4. Apply MBrace Fiber ReinforcementReinforcement

6. Apply Optional 6. Apply Optional MBrace TopcoatMBrace Topcoat

5. Apply Second Coat 5. Apply Second Coat of MBrace Saturantof MBrace Saturant

Easy InstallationEasy Installation

34



er

Design Thickness 0.0065 in. Tensile Strength 3.3 K/in. Tensile Strength for Design

505 Ksi

Tensile Modulus for Design

33 Msi

Ultimate Elongation 1.5%

Physical Properties of CF Sheet

35



er

MBrace vs. Conventional Upgrade

Bonded Steel Plate 0.5 cm bolted plate 110 kg dead load Placed by lift truck

Member Enlargement 2 #20 rebar, 10 cm grout 1,125 kg dead load Formed and cured

FRP Sheet 1 layer resin bonded 2.7 kg dead load Placed by hand

Simply supported beam; 35% upgrade in live load

36



er

FRP Repair StrategiesDuctile behavior

Deflection

Load Beam with Composite

Original beam

BC

A D

SL

SL

UL

37

Principle of MBraceTM Strengthening

Confinement Detailing - Circular Column

38

Principle of MBraceTM Strengthening

Confinement Detailing - Square & Rectangular Column

39

MBrace Composite Strengthening System Final View

Steel-plate Bonding Jacketing MBraceTM System

40

MBraceTM Composite Strengthening SystemStrengthening Philosophy in MBraceTM

3 Key Features in the Two-Part Polymer System…

… MBraceTM Primer & MBraceTM Saturant

41


#1 Low Viscosity MBraceTM Primer to penetrate micro-cavities in concrete substrate

Anchoring into concreteStronger adhesion bond

42


#2 Compatible MBraceTM Primer and MBraceTM Saturant to form effective polymer matrix

Fully integratedProper load transfer to fibres Concrete Failure

43


#3 Coloured MBraceTM Saturant to indicate complete impregnation of fibres with the saturant

Fully impregnatedProper protection to fibres

Proper distribution of loads

Carbon Fibre

E-Glass Fibre

44

MBraceTM Composite Strengthening SystemIntroduction to the MBraceTM

MBraceTM Fibre Reinforcement System

E-Glass Fibre Carbon Fibre

45

Buildings

• RC Beams, Columns and Slabs

• RC and Masonry WallsBridges

• Beams, Pier and Deck SlabsSilos, Chimneys and TanksPipes and TunnelsMarine Structures

• Jetties and Wharves

MBraceTM Composite Strengthening SystemAreas of Application with MBraceTM

46

MBraceTM Composite Strengthening SystemWall Strengthening with MBraceTM

Strengthening of RC and Masonry Walls to enhance:-

Flexural CapacityShear CapacityBlast Resistance

47

MBraceTM Composite Strengthening SystemBlast Resistance with MBraceTM

BLAST

48


BLAST

49


BLAST

Wall without MBraceTM

Failure at 1.5 psi, 108ms

50


BLAST

Wall without MBraceTM

NO Failure at 12 psi, 80ms

51

Increases flexural capacity of flexural elementsIncreases shear capacity of beams, columns and wallsIncreases vertical load-bearing capacity of columnsIncreases ductility under cyclic loadingsIncreases seismic resistanceResistance against corrosionResistance to crack propagationResistance to bomb blast

MBraceTM Composite Strengthening SystemCharacteristics of MBraceTM

52

High Strength-to-Weight RatioEasy to install and non-destructiveLow labour and less downtimeDoes not require heavy and special equipmentCan be used in space-constrained areasFlexible and able to adapt to various shapesNo off-setting from original alignmentDurable, non-corrosive and able to resist corrosionNo maintenance

MBraceTM Composite Strengthening SystemAdvantages of MBraceTM

E-Glass Fibre

Carbon Fibre

53

MBraceTM Composite Strengthening SystemComposite Performance of MBraceTM

Properties

Type of FibreTensile Strength(min. ASTM D3039)

Tensile Modulus(min. ASTM D3039)

Ultimate Strain(min. ASTM D3039)

Thickness/Layer

MBraceTM EG900

E-Glass

480 N/mm2

28 000 N/mm2

2.0

1.10 mm

MBraceTM CF130

Carbon

30000 N/mm2

2300 G N/mm2

1.5

0.165 mm

54

Installation Procedure


55

MBraceTM Composite Strengthening SystemInstallation Procedure of MBraceTM

Repair Concrete Substrate Epoxy to cracks > 0.30mm

56


Corner rounded to radius 20mm

57


Surface Preparation

58

Surface Preparation

• Remove existing finishes to expose bare concrete surface

• Concrete surface to be smoothen to give an even surface with no voids or potholes

• Chamfer edges and corners to a radius of approximately 20mm


59

Application of Primer• Mix MBraceTM Primer

Part A and Part B using a mechanical mixer for between 1-2 minutes

• Apply MBraceTM Primer to prepared concrete surface


60


Prime surface with MBraceTM Primer

61

Material Preparation• Fibre sheets are pre-

cut according to the requirement as per structural drawings.

• Mix MBraceTM Saturant Part A and Part B using a mechanical mixer for between 1-2 minutes


62

Saturation of Fibre• Saturate MBraceTM Fibre

Sheets with MBraceTM Saturant using a roller or saturator


63

Installation of MBraceTM

• Install pre-saturated MBraceTM Fibre Sheets onto primed concrete surface


64

MBraceTM Installed• Column strengthened using

MBraceTM


65

Broadcast sand• Broadcasting sand onto

strengthened column to form keys for application of finishes


66

Finishes• Apply desired finishes to

the strengthened column


67

Completion• Completed strengthening

work


68

Standard Detailing


69

MBraceTM Composite Strengthening SystemTypical MBraceTM Detailing

Flexural Strengthening with MBraceTM

Shear Strengthening with MBraceTM

Axial Strengthening with MBraceTM

70

MBraceTM Composite Strengthening SystemShear Strengthening Design

Shear Detailing - Various Configurations• Strips

• Continuous

• Inclined

71

MBraceTM Composite Strengthening SystemStandard Detailing of MBraceTM

Shear Detailing - Wrapping Schemes

Full Wrap “U-wrap” Two sides

72


Effect of Wrapping Scheme

Shea

r Res

ista

nce,

Vf (k

N)

Cross-Sectional Area of FRP, Af(mm)

Fully Wrap

U-Wrap

73


Anchorage - Avoid using mechanical fasteners

F

74


Anchorage - Avoid using turning radii

FRP not loaded

TFRP

loaded

75


Anchorage - MBraceTM Anchorage System

A

AA-A

MBraceTM

Anchorage System MBraceTM Saturant

Fibre Anchor

50mm

10

76


Flexure Detailing - Wrapping Schemes

A

A

A-A

100mm

100mm

100mm

B

B

B-B100mm

77


Flexure Detailing - Cutoff Points

M=Mu

M=0

ldf

100100100

78


Confinement Detailing - Circular Column

79


Confinement Detailing - Square & Rectangular Column

80


Effect of Confinement

Axi

al C

ompr

essi

ve S

tres

s

Plain Concrete

FRP-confined Concrete

Axial Strain, c cc

ffd

Ei

81

Strengthening Design


82

Research & Development


83

MBraceTM Composite Strengthening SystemMaterial Testing

Tensile Properties of MBraceTM - ASTM D3039:95Shear Bond Strength of MBraceTM - ASTM C482:81Adhesion Pull-Out Strength of MBraceTM - ASTM D4541:93 (adopted)

84

MBraceTM Composite Strengthening SystemColumn Testing

Design Ultimate Load = 905 kNUltimate Failure Load = 1080 kN

Design Ultimate Load = 1176 kNUltimate Failure Load = 1446 kN

Control Specimen Strengthened Specimen

>30% Increase In Axial Capacity

85

MBraceTM Composite Strengthening SystemBeam Testing

Beam strengthened with MBraceTM showed increase in shear

capacityControl B1

Strengthened B2 Anchored B3

86

MBraceTM Composite Strengthening SystemBeam Testing

500

0 5 10 15 20 250

100

200

300

400

Load

(kN

)

Mid-Span Deflection (mm)

Beam B1

Beam B2

Beam B3

87

MBraceTM Composite Strengthening SystemSlab Testing

Cantilever end-span of RC bridge deck slab was tested to failure

Failed deck slab was repaired and strengthened using MBraceTM

Strengthened deck slab was loaded and no sign of failure was shown when the unstrengthened failure load was reached

106

Tensile Strength Test FRP Carbon CF 130 atMaterial & Structure Lab. Civil Eng. Institut Technology Bandung West Java

108

New Innovation & Development


109

MBraceTM Innovation: MBarTM System

110

MBraceTM Composite Strengthening SystemSilo, USA

Silo was strengthened with MBraceTM to increase its load-bearing capacity and enhance against hoop stressesStrengthening work was conducted with no disruption to the daily operation of the silo

111


Grooves were formed on concrete substrate for the installation of MBarTM

Workers cutting grooves on concrete substrate

View of Silo with prepared concrete substrate

112


MBarTM installed onto concrete substrate of Silo MBarTM installed and

MBarTM Putty applied tolevel with surface

Groove for installing MBarTM

113

MBarTM FRP ReinforcementsHong Kong LCC206

Fabrication of reinforcement cages for D-wall using GFRP rods

GFRP Ø32

GFRP Stirrups

Stiffening frame

114

Hong Kong LCC206 (Cont’d)

Fitting GFRP reinforcement cage to steel frame to be lifted to vertical position

Stiffening frame

115

Hong Kong LCC206 (Cont’d)

GFRP cage lifted by crane and lowered into excavated hole for construction of D-wall

16m long GFRP Reinforcement Cage

116

MBarTM FRP ReinforcementsDelhi Metro, India

GFRP was used as reinforcement to replace conventional steel for the soft-eye.

GFRP is ideal for TBM to cut through easily without damaging it.

Less labourLess downtimeLess work constraintsLower overall project cost

Delhi Metro

117

MBarTM FRP ReinforcementsC822 Circleline Project, Singapore

MBarTM GFRP rods used as temporary reinforcement at soft-eye region of diaphragm wall for link sewer tunnelling interfaceMBarTM GFRP rods chosen due to:Easy to cut by TBMLight-weightEasy to handleLess construction timeHigh tensile strength

Soft-eye region to be reinforced with MBarTM GFRP

rods

118

Install of MBarTM GFRP rods to replace conventional steel reinforcements at soft-eye region

Steel tie used to secure MBarTM

MBarTM FRP ReinforcementsC822 Circleline Project, Singapore

119

Sutherland Metro

CFRP rods used as soil nails to create steep-sided cuttings for new railway in an urban area.

CFRP rods chosen due to:High resistant to wide variety of aggressive environments.Light-weight; 3.5% of the weight of an equivalent strength steel rodsEasy to handleReduced construction timeReduced costs of about 10%High tensile strength

120

Sutherland Metro (Cont’d)

Surcharge

Maximum required restoring force

Active Passive

Soil Nails

121

114mm Drilled Hole

200mm thk Vegetation Layer


Cementitious Grout (W/C:0.45)Min. Strength 35N/mm2 at 28 Days

1 layer of Geogrid laid on soil surfaceRC Face Plate

400x400x70mm thk bedded on 2:1 Mortar

Voids & Empty Hole packed with 2:1 Mortar

16mm Dia. CFRP Rod

Wedge Grip Mechanism

122


Using drilling rigs to drill 114mm dia. hole.

CFRP was inserted into the drilled holes. Length of between 3.0 and 10.7 m.Holes filled under gravity with grout.

123


Laying Geogrid unto soil surface

RC bearing plates installed

124


Securing plates with wedge grip mechanism. Filling voids with mortar.

125


Honeycomb of hessian ribbon formed on slope before filling the cells with topsoil.

126

Completed Projects


127

BEAM STRENGTHENING


128

MBraceTM Project: Flexure & Shear Strengthening for Beam Compass Rose Restaurant inRaffles City S. C., Singapore

Strengthening using MBraceTM due to change in use.

New RC slabs added to close up void after removal of existing RC staircase linking two floors.

129


Casting of new RC slab after strengthening of RC beam with MBraceTM

Installing MBraceTM onto RC beam to increase flexural capacity

130


Strengthening for shear using MBraceTM

Bolting of steel plate to strengthened RC beam

131

MBraceTM Project: Flexure Strengthening for Beam Convention Center in Oklahoma City, USA

Strengthening using MBraceTM to increase flexural capacity

Change in use due to addition loads from exhibition events on trucks and heavy machines

132

Installing of MBraceTM to main beam

Installing MBraceTM to joist beams

MBraceTM Project: Flexure Strengthening for Beam Convention Center in Oklahoma City, USA

133

MBraceTM Project: Flexure Strengthening for Beam North Vista Secondary School, Singapore

Strengthening using MBraceTM to increase flexural capacity of RC Beams

134

MBraceTM Project: Flexure Strengthening for Beam North Vista Secondary School, Singapore

Applying MBraceTM Primer onto prepared RC beam surface

Installing MBraceTM Carbon Fibre onto RC beam to increase flexural capacity

135

MBraceTM Project: Shear Strengthening for Beam Carpark Structure in South Florida, USA

Strengthening of beams to increase shear capacity using MBraceTM

Steel-plate bonding and enlargement proposed initially

But due to space-constraining and aesthetic reasons, MBraceTM accepted

136

MBraceTM Project: Shear Strengthening for Beam Carpark Structure in South Florida, USA

MBraceTM applied to beam at direction perpendicular to shear cracks

MBraceTM installed unto RC beam

Project completed with no disruption and at a reduced cost to owner

137

COLUMN STRENGTHENING


138

MBraceTM Project: Column Strengthening Upgrading of Marsiling Drive Precinct MUP10, Singapore

Strengthening of RC columns at first-storey of HDB flats using MBraceTM .

RC columns strengthening under HDB’s upgrading and maintenance to existing HDB flats.

139

Removal of existing paint

Chamfer corners

Repair defective plaster


140

Priming prepared surface with MBraceTM Primer

Saturating of MBraceTM E-Glass Fibre with MBraceTM Saturant

Installing MBraceTM

to RC column


141

RC columns strengthened with MBraceTM

Composite Strengthening System


142

MBraceTM Project: Flexure Strengthening for Column Stadio De Cesena 98, Italy

RC columns in sports stadium strengthened to increase flexural capacity

143


Crack repair to reinstatecolumn

Column primed with MBraceTM Primer

Column strengthenedwith MBraceTM

144


MBraceTM installed onto RC columns for flexural strengthening

Strengthened column

145


Strain gauges installedonto strengthened column

Insitu load testing on columnstrengthened with MBraceTM

146

FRP Project: Column Strengthening Evangel Family Church, Singapore

RC Columns to be strengthened

147

FRP Project: Column Strengthening Evangel Family Church, Singapore

Priming of concrete substrate prior to installation

Installation of FRP to RC Column

148

Shear deficiency of RC columns due to additional loading from new roof truss.

Architectural features of columns must be preserved

MBraceTM

proposed and adopted

MBraceTM Project: Column Strengthening Conservation of Majestic Theatre, Singapore

149

Shear capacity of RC columns enhanced with MBraceTM

Architectural features preserved

Total of 20 RC columns strengthened within a short period of 10 days

MBraceTM Project: Column Strengthening Conservation of Majestic Theatre, Singapore

150

SLAB STRENGTHENING


151

MBraceTM Project: Flexure Strengthening for Slab JTC Summit, Singapore

Strengthening using MBraceTM to increase flexural capacity of RC Slabs

152

MBraceTM Project: Flexure Strengthening for Slab JTC Summit, Singapore

Saturating MBraceTM E-Glass Fibre using roller

Installing MBraceTM onto RC slab to increase negative moment capacity

153

MBraceTM Project: Flexure Strengthening for Pier Deck Port Canaveral Pier, USA

Strengthening using MBraceTM to increase flexural capacity of RC Slabs due to increase in crane loads

Coastal/Marine Structures

154

MBraceTM Project: Flexure Strengthening for Pier Deck Port Canaveral Pier, USA

Installation of MBraceTM to soffit of deck slab

155

WALL STRENGTHENING


156

MBraceTM Project: Strengthening for Wall Residential Apartment, Singapore

Surface preparation prior to the installation of MBraceTM

Priming of prepared concrete substrate with MBraceTM Primer for installing MBraceTM

157

Applying MBraceTM EG900 E-Glass Fibre saturated with MBraceTM Saturant to the primed concrete substrate

MBraceTM Project: Strengthening for Wall Residential Apartment, Singapore

158

BRIDGES & OTHER STRUCTURES


159

MBraceTM Project: Column StrengtheningViadotto Calafuria 98, Italy

Bridge pier strengthened using MBraceTM to increase its load-bearing capacity

Strengthening work was conducted with no disruption to traffic flow of the bridge

160

Column primed with MBraceTM Primer andSaturant

Laying dry MBraceTM Carbon Fibre vertically to column


161

Apply MBraceTM Saturant ontoMBraceTM Carbon Fibre toimpregnate the carbon fibre

Remove protective sheetfrom MBraceTM Carbon Fibre


162

Laying dry MBraceTM Carbon Fibre horizontallyto column

Remove protective sheetfrom MBraceTM Carbon Fibre


163

Final adjustment and alignment of carbon fibre

Apply MBraceTM Saturant ontoMBraceTM Carbon Fibre toimpregnate the carbon fibre


164

MBraceTM Project: Bridge StrengtheningArch Railway Prakanong Bridge, Thailand

Award-Winning Project50 year old Arch Railway Bridge strengthened with MBraceTM due to increase in traffic volume

8th Annual Projects AwardsICRI 2000 Project Awards ProgramAward of ExcellenceTransportation Category

165

Restoration in progress with no disruption to transportation of oil


Installation of MBraceTM to bridge

Bridge strengthened and the architectural beauty of the bridge is also preserved.

166

Restoration in progress with nodisruption to transportation of oil

Applying MBraceTM Saturant to MBraceTM Carbon Fibre


167

Installation of MBraceTM to bridge

Bridge strengthened to withstand a 40% increase in live load and the architectural beauty of the bridge is also preserved.


168

MBraceTM Project: Bridge Strengthening Little River Bridge, Australia

80 year old bridge built in 1920 was strengthened with MBraceTM to increase its load-bearing capacity due to new code requirement

MBraceTM was proposed against steel-plate bonding and approved!!!

Strengthening completed within three weeks

169

Level substrate with MBraceTM Putty

Prime substrate with MBraceTM Primer

Installing MBraceTM to soffit of beam

MBraceTM Project: Bridge Strengthening Little River Bridge, Australia

170

MBraceTM Project: Bridge Strengthening Bridge G270, Phelps County MO USA

Pilot Project with the Missouri Department of Transportation (MoDOT) to study the effective of strengthening bridge with FRP

Bridge strengthened to allow removal of load posting

171

Installing MBraceTM to soffit of deck slab

Bridge deck slab strengthened with MBraceTM

MBraceTM Project: Bridge Strengthening Bridge G270, Phelps County MO USA

172

MBraceTM Project: Bridge Strengthening Santa Theresa Viaduct, Brazil

Important viaduct serving heavy traffic daily

Viaduct needed to be strengthened to cater to increase in traffic load

Required Upgrade for 45-ton Vehicles

173

MBraceTM Project: Bridge Strengthening Santa Theresa Viaduct, Brazil

MBraceTM installed to soffit of deck slabs and beams for flexural strengthening

Viaduct strengthened and completed with finishes

174

MBraceTM Project: Bridge Strengthening Spring Cypress Overpass, Houston TX USA

175


176


177

MBraceTM Project: Bridge Strengthening I-44 & I-270 Overpass, St. Louis MO USA

Bridge repaired and strengthened due to damage by impact and collision from vehicles

178

MBraceTM Project: Bridge Strengthening I-44 & I-270 Overpass, St. Louis MO USA

Beam reinstated and strengthened with MBraceTM

Damaged portion of the beamby vehicles

179

MBraceTM Project: Bridge Strengthening Court Street Bridge, Oswego NY USA

180

MBraceTM Project: Bridge Strengthening Poplar Street Bridge, Berea HO USA

MBraceTM used to increase ductility and seismic resistance of bridge pier

181

MBraceTM Project: Crack Repair for Tank Water Tank in USA

Cracks caused by insufficient steel due to design error

Cracks injected with epoxy and MBraceTM installed across crack

Cracks

182

MBraceTM Composite Strengthening System Final View

Steel-plate Bonding Jacketing MBraceTM System

183

PROJECT REFERENCES MBRACE SYSTEM IN INDONESIA


184

Bridge Beam/Slab ; Increasing traffic volumes

185

PROYEK PERKUATAN GIRDER I PRETENSION RUAS E-1 SEKSI IV FLY OVER TOL JATI ASIH

186

PERBAIKAN STRUKTUR PASCA GEMPA BUMI GEDUNG KANTOR BANK INDONESIA MedanMbrace CF 130

187

Mbrace CF 130, Discovery Mall Bali

188

Mbrace CF 130 Dago Boutiq, Bandung

189

Mbrace CF 130 Lingkar Selatan Elektronik Center, Bandung

190

Aplication Mbrace CF 130 at beams structure at Braga Citywalk Bandung

191

ApplicationMbrace CF130 at Istana Plaza MallBandung

192

Application Mbrace laminate at South Pacific Viscose Purwakarta.

193

Mbrace Laminate, Indosat Building Solo

194

END OF PRESENTATION

THANK YOU

fibre reinforced polymer

Engineering