BALLAST MAT

A High Performance Solution
The ballasted track on transit and commuterlines can be sensitive to ground and structure
borne vibration. Ballast mat reduces degradation,protects bridge decks and reduces transfer ofstructure borne vibration.

Benefits:
n Attenuates structure-bornevibrationn Reduces Impact
n Cuts tamping by 70%

A study conducted by the Transportation andTechnology Center (TTCI) reported that theBallast Mat can double the life of the ballast.
Ballast Mat reduced the Vertical Track
Modulus (VTM) by 55 percent in concrete tie
track. The impacts at mid-span were reduced by
30 to 40 percent on bridges.

Progress Rail’s high-performance Ballast
Mats are produced from recycled rubber,
resulting in a lower natural frequency
compared to traditional ballast mats. Thisenhances acoustical performance over a
wider range of frequencies.
Ballast Mats can be ordered in rolls or
sheets to meet various project needs
and requirements.

n Reduces degradation of ballast
by more than 50%
n Reduces stress on structures

Bottom Surface

Top Surface

n Provides bridge deck andwaterproofing protectionn Improves maintenance costs

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CONTACTUS+1 800-476-8769
ProgressRail.com

FOLLOWUS

INF22007n Reduces secondary noise insideneighboring buildings

BALLAST MAT SPECIFICATIONSDYNAMICS
Dynamic-to-static stiffness ratio (Kd) is 1.4(+0.1/-free) for Type 1 and 1.86 (+0.1/-free) for
Type 3 and Type 4.

TEMP RANGE
Standard quality is suitable for service where
B/M temperature temperatures range between(-) 20 °C and (+) 70 °C.
During extreme cold periods, should drains ice
and mats become flooded, subsequent freezing
will not be damaging. While frozen, of course,
performance will be temporarily affected.
However, full performance will be restored assoon as ice thaws, drains open and waterruns off.
Note: Weights and dimensions are approximate, not exact

ADDITIONAL RESILIENT PRODUCTSRESILIENT DF PAD
n Used to provide additional reduction inground borne vibrationn Available in dual stiffnessn Provides electrical isolationn Natural rubber
FLOATING SLAB PADn Natural rubber pads significantly reduceground borne vibration and noisen Side and end pads are available in manysizes and specifications

ELASTOMER PAD
n Designed for complicated track sections

to provide reduction in noise and groundborne vibration

Progress Rail’s Ballast Mats consist of reinforced natural rubber designed to provide reductionof ground or structure borne vibrations, impact on structures and premature ballast degradation.
The upper surface of the mat is textured to permit the ballast to nest for trackbed stability, loaddistribution and is designed to protect against contaminants that may filter through ballast overtime. The subsurface contains fabric reinforcement for added strength and the underside is profiled
to permit unrestricted subsurface drainage in all directions.
MAT TYPE

CAPACITY
Nominal Axle, Tons
DIMENSIONS
WidthThickness

MAT TYPE 1

MAT TYPE 3

MAT TYPE 41233401220mm (48”)
30mm (1 3/16”)

1370mm (54”)
22mm (7/8”)

1370mm (54”)
20mm (3/4”)

Length9 meter max (30’)

STRUCTURE
Top Layer

5mm (3/16”)

FabricIsolation Layer

25mm (1”)

1 Ply
17mm (5/8”)

15mm (1/2”)

WEIGHTKg/m² (Lbs./Sq/Yard)

19 (~35)

14 (~26)

13 (~23)FABRIC
TypeTensile
Elongation at Break

Woven Fiberglass
6-7 Nm Min. (60 Lbs./In. Min.)≥ 10%

ELASTOMERTop Surface
Body (Profiles)

Natural Rubber and SBR
Natural Rubber

PHYSICAL PROPERTIES
MAT TYPE 1

MAT TYPE 3

MAT TYPE 4

Tensile, PSIElongation at Break

200
100%

200
100%

200
100%

Tear Resistance, lbs./in.

505020mm (3/4”)

53 ±7

53 ±7

Note: -10% / +open. Values for top layer and do not include fabric.

n Highly durable and resilient

Hardness - Shore An Cost and performance effective

Note: Top layer properties.

53 ±7