네덜란드, 터키 등에서 사용중인 레일패드, 베이스플레이트 및 발라스트 매트 시스템의 자재 소개입니다.

1. Reinventing elasticity into
the railway structure Cork based
material for railway
applications

2. Copyright © Amorim Cork Composites. All rights reserved.Copyright © Amorim Cork Composites. All rights reserved.
Vibration control
in railwayinfrastructures
Reinventingelasticityintotherailwaystructure
Overthelastyears,railwaysectorhasundergoneconsiderable worldwide
growth,resultinginasignificantincreaseinthefrequencyofurban
andsuburbantrains.
Thishighflowoftrafficgenerateshighlevelsofvibrationthatneed
tobepreventedandtreated.Asamaterialsuppliersupplying25different
segmentsanddifferentapplications,weuseouryearsofexperience
andourengineeringteamtodevelopsolutionstoreducetheimpactof
vibrationinthelightrail,underground,heavyandhighspeed
railinfrastructuresector.
Environmrtalconcernsarealwayspresentineverymaterial
weproduce.AmorimCorkCompositesisinternationally
reconizedbythesustainablepraticeswhitmultiple
certifications.
Allvibrationcontrolmaterials,corkandrubber,
arerecyclableandhavealowenvironmentalimpact.

3. Copyright © Amorim Cork Composites. All rights reserved.
Reinventingelasticityintotherailwaystructure
Superstructure and substructure
Arailwaytrackstructureiscomprisedofasuperstructureandsubstructure,inwhichthemost
basicparameterinthedesign,constructionandmaintenanceisthetrackstiffness(proportion
betweenverticaltrackload-staticanddynamicloads-andtrackdeflection),asitdefinesthe
loadcapacity,dynamicbehaviorofvehiclesandtrackgeometry.
Subgrade
Subballast
Ballast
Sleepers
Fastennings and baseplate
Rails
Superstructure
Substructure

4. Copyright © Amorim Cork Composites. All rights reserved.
Reinventingelasticityintotherailwaystructure
Superstructure
Thetrack’sverticaldynamics(imposedbyvehicleaxleloadandspeed)isasignificantpart
ofthestressesexertedonthestructure,aswellasthelevelofvibrationandnoisetransmitted.
Hence,thetrackisinfluencedbytheincorporationofelasticelements(vibrationcontrolpads),
theirdynamicpropertiesandthewaythesearearrangedonthestructure,andtheseleadtoa
considerableimprovementinthesubstructure,offsettingthedisadvantagesofusingconcrete
sleepersoncompactandrigidsubgrades,comparedwithearliertimber-sleepersuperstructures.
Reductionintransmissibilityandlowermaintenancecostsaswellasincreasedsafetyand
comfortusingAmorim’svibrationcontrolmaterialsprovidethenecessaryelasticitythatcannot
begivenbyeitherthesubgradeortheballast,duetosubstructurecompactionthroughtrack
stabilizingmaintenanceprocedures(trackballastpacking).

5. Copyright © Amorim Cork Composites. All rights reserved.
Reinventingelasticityintotherailwaystructure
Key Features
• Reducethelevelofimpactforcesonthesleeper,andconsequentlytothesubstructure;
• Provideelectricalinsulation;
• Preventwearbetweenmatingcomponents;
• Reducecorrosionbetweenrail,baseplateandsleeper;
• Reducevibrationtransmissionandconsequentnoise.

6. Copyright © Amorim Cork Composites. All rights reserved.
Superstructure
Reinventingelasticityintotherailwaystructure
RailPads
playavitalroleinpreventingcracksanddeterioration
ofconcretesleepers.Theirmainfunctionistotransfer
therailloadtothesleeperwhilefilteringouthigh
frequency forcecomponents.
Baseplates
supporttherailonrigidsurfacessuchasconcrete
slabsorsteelbridges.AmorimBaseplatepadsreduce
thetransmissionofvibrationsfromtherailandbase
plateintothesubstructure.

7. Copyright © Amorim Cork Composites. All rights reserved.
Type
Typical
Thickness
(mm)
Density
(kg/m³)
Hardness
(IRHD)
Tensile
Strength
(MPa)
Elongation
at break (%) Static
Deflection (mm)
Dynamic
Deflection (mm)
ISO 2781 ISO 48 ISO 37 ISO 37
RP93
(VC9300) 10 810 60–70 >1.5 >200(1) between 200 N
and 0.8 N/mm²
1.0–1.5*
at 0.8 N/mm²
and 4.6 Hz 0.6–1.0*
RP94
(VC9400) 4.5 620 66–76 >3(1)
>200(1) between 200 N
and 3 N/mm²
0.2–0.4**
at 3 N/mm²
and 20 Hz
0.12–0.28**
RP96
(VC9600) 4.5 1187 78–88 >7(1)
>150(1) between 400 N
and 3 N/mm²
>0.1 and
<0.3**
at 3 N/mm²
and 15 Hz
(mm)
>0.05 and
<0.15**
Superstructure - Rail Pad
Rail pads according to SPC 00004, SPC 00013 and SPC 00116
Reinventingelasticityintotherailwaystructure
Note:May be supplied with cloth at the top layer to prevent sticking to the rail foot
* Sample 200 x 200 x 10 mm - ** Sample 140 x 140 x 4.5 mm - (1) Even After Ageing,7 days at 70 °C

8. Copyright © Amorim Cork Composites. All rights reserved.
Type
Typical
Thickness
(mm)
Density
(kg/m³)
Hardness
(IRHD)
Tensile
Strength
(MPa)
Elongation
at break (%)
Electrical
Resistance,
500 V DC (Ω) Static
Deflection (mm)
Dynamic
Deflection (mm)
ISO 2781 ISO 48 ISO 37 ISO 37 BS903 pt C2
BP91
(VC9100) 12 620 30–40 >1 >100 1 x 108
between 200 N
and 0.8 N/mm²
3.9–4.5*
at 0.6 N/mm²
and 4.6 Hz
2.9–3.3*
BP92
(VC9200) 12 790 44–54 >2 >250 1 x 108
2.0–2.6* 1.5–1.9*
BP95
(VC9500) 5 1150 90–98 >4.8 >80 1.0 x 1010 between 400 N
and 4 N/mm²
0.14**
between 7000
N and 3 N/mm²,
at 5 Hz (mm)
0.029**
BP96
(VC9600)
8 1187 78–88 >7 >150 -
between 400 N
and 3 N/mm²
>0.1 and
<0.3**
at 3 N/mm² and
15 Hz (mm)
>0.05 and
<0.15**
Superstructure - Baseplate
Certification (according to SPC00116) by Dekra Rail and Railcert
Reinventingelasticityintotherailwaystructure
Note:May be supplied with 1 mm one side insulating layer to improve electrical resistance and mechanical properties
* Sample 250 x 250 x 12 mm - ** Sample 140 x 140 x 5 mm

9. Copyright © Amorim Cork Composites. All rights reserved.
Substructure Pad and Mat
Reinventingelasticityintotherailwaystructure
UnderSleeperPads
areelasticelementslocatedbetweenthesleeperand
theballast.Thisisacost-effectivewayofincreasing
theelasticityofthesuperstructureandreducing
wearandtearontheballast.
BallastMats
haveadualeffect:onthetrain-trackdynamicbehavior
andonthereductionofvibrationstransmittedtothe
ground.TheBallastMatsprovideahighperformance
mass-springsystemwithlowresonancefrequencies
andhighvibrationisolationperformance.

10. Copyright © Amorim Cork Composites. All rights reserved.
Type Density (kg/m³) Shore A Thickness (mm)
USP72
(VC7200)*
790 43
6.5 at 20 mm
USP73
(VC7300)*
710 38
Substructure – Under Sleeper Pad
Reinventingelasticityintotherailwaystructure
*Agglomerated recycled SBR (Stirene Butadiene Rubber) with PU (polyurethane) elastomer bonding agent

11. Copyright © Amorim Cork Composites. All rights reserved.
URBAN TRANSPORT
Light Rail Lines (≤160 kN axle Load;v≤120 km/h)
Type Thickness (mm) cstat (N/mm³)
BM73* 60 0.017
BM73* 2x 17/8 0.017
MAIN LINE
>160 kN axle Load;v≤120 km/h
Type Thickness (mm) cstat (N/mm³)
BM73* 40 0.04
BM73* 17/8 0.037
>160 kN axle Load;v≤200 km/h
Type Thickness (mm) cstat (N/mm³)
BM73* 25 0.06
BM73* 10/5 0.06
Substructure – Ballast Mat
Solutions tested according to DIN 45673-5 at Instituto Politécnico
de Setúbal subjected to a highly qualified environment
Reinventingelasticityintotherailwaystructure
>160 kN axle Load;v≥200 km/h
Type Thickness (mm) cstat (N/mm³)
BM72* 20 0.1
>160 kN axle Load;v≥200 km/h
Type Thickness (mm) cstat (N/mm³)
BM73* 10 0.154
*Agglomerated recycled SBR (Stirene Butadiene Rubber) with PU (polyurethane) elastomer bonding agent
BM73 (VC7300) and BM72 (VC7200)

12. Copyright © Amorim Cork Composites. All rights reserved.