For the past 150 years,
railroads have relied on cross ties made from wood because a viable alternative simply was not
available.
That is until now. Dynamic Composites, LLC is producing a
cross tie made from a unique extrusion material that offers both
economic and performance advantages.
Dynamic Composites, LLC is the
manufacturer and distributor of a revolutionary composite
railroad tie made from recycled materials. Using an innovative
composite material developed by Primix Corp., our railroad ties are manufactured from recycled
high density polyethylene, recycled rubber, steel and concrete.
The superior
design provides a significantly stronger tie,
with an improved life cycle and excellent in track
characteristics.
Based on Independent Lab Testing
Nominal
Size
7" x 9" x 8'6:
(switch ties and
other
lengths available)
Weight
nominal 320 lbs.
Shell Hardness
6,200 lbs. -
7,300 lbs.
Shell Density
48.4 lbs. per
cubic foot
Shell Thermal Expansion
0.0058% per deg F
Modulus of Rupture
2.200 - 2,600 psi
Modulus of Elasticity
200,000 - 250,000
psi
Compression
30,000 - 45,000
psi
Spike Insertion
6,500 - 8,200
lbs.
Spike Lateral
3,000 - 4,500
lbs.
Spike Withdraw
2,350 - 4,000
lbs.
5/16" screw Withdraw
11,000 - 13,700
lbs.
Life Expectancy Estimated
60+ year life
cycle
(in
service estimate based on
laboratory evaluation)
Ultimate Strength
24,000 - 72,000
lbs.
Test Results
Test Description
Dynamic
Composite
(Primix)
AREMA
Specification
Rail Seat Positive Bending Moment
349 kip
300 kip
Center Positive Bending Moment
211 kip
141 kip
Center Negative Bending Moment
351 kip
201 kip
Dynamic Composites, LLC is the exclusive manufacturer and distributor of
Primix Cross Ties in the United States, Canada and Mexico.
Copyright
2006 Dynamic Composites, LLC. All Rights Reserved.
