VIBRAFLEX®
Asphaltic Panel Bridge Deck Protection Course
Description
VIBRAFLEX bridge deck protection course is a
multi-ply, semi-rigid asphalt panel composed of a
mineral-fortified asphalt core between one liner of
asphalt-saturated felt and one layer of fiberglass.
One liner is weather-coated and has a
polyethylene film facing. It may be used in
conjunction with most types of built-up
dampproofing and waterproofing membranes,
including liquid membranes, sheet membranes of
EPDM, butyl, neoprene rubber,
polyvinylchloride, as well as built-up systems. It
is equally adaptable to concrete, wood, steel, and
pre-stressed or precast concrete structures that
require waterproofing. VIBRAFLEX is ideal for
both new and remedial waterproofing
applications.
USES
Developed by W. R. MEADOWS in conjunction
with some of the nation’s leading railroads,
VIBRAFLEX provides a top-quality protection
course that can be dry installed and is fully
compatible with butyl sheeting and most
sophisticated waterproofing membranes. It will
withstand forces that would otherwise injure or
deteriorate the membrane waterproofing material
and destroy the integrity of the waterproofing
system.
| FEATURES/BENEFITS |
- Large 4’ x 8’ (1.22 m x 2.44 m) panels can be
installed dry, permitting faster, easier
installation and savings of 40% to 60% in total
installed costs when compared to plank-type
products.
- Panel size results in fewer joints (90% less),
which eliminates infiltration of fines and
resulting damage to the waterproofing
membrane when compared to plank-type
products.
- Flexible dual-layer installation complies with
current AREMA® Specification in Chapter 9.
Eliminates messy hot-mopping and coldbitumen
adhesives.
- The factory-applied, weather-coated surface
permits controlled ballast penetration for a
secure seating position which locks the panel to
the ballast for effective base stabilization.
- Proven by more than three decades of
outstanding field performance and service.
|
| SPECIFICATIONS |
- AREMA® Specification; Chapter 29 for
Membrane Waterproofing
|
LEED INFORMATION
May help contribute to LEED credits: |
- MR Credit 2: Construction Waste
Management
- MR Credit 4: Recycled Content
- MR Credit 5: Regional Materials
|
PACKAGING
THICKNESS
INCHES (mm) |
PANEL SIZE
FEET (m) |
WEIGHT-LB (kg)
PER 100 FT.² |
3/8" (9.53 mm)
1/2" (12.7 mm) |
4'x8' (1.22 x 2.44m)
4'x8' (1.22 x 2.44m) |
260 lbs. (117.94 kg)
350 lbs. (158.76 kg) |
COLOR:
Black
APPLICATION
| To reduce the possible ingress and infiltration of
fines to a minimum and provide maximum
membrane protection, VIBRAFLEX panels are
installed in two layers. The first layer is laid dry directly on the waterproofing membrane, with
each sheet butted tightly to the next. The second
layer is then laid with the butt joints staggered on
a half-sheet module (as shown in the layout
diagram) to avoid coincidence with the joints of
the first layer. No adhesives are required when
the sheets are applied in this dual-layer technique.
The longitudinal dimension of the panels should
be parallel to the composite slabs and structural
members. VIBRAFLEX is shipped with anti-stick
polyethylene sheets between each panel, making
handling and installation fast and easy. Panels
may be cut to size using a sharp roofer’s knife. |
 |
DUAL LAYOUT APPLICATION THEORY
This theory, shared by many railroad engineers,
states that the longer the ballast is in place, the
greater the degree of build up or concentration of
fines at the lowest possible level; in this case, the
point at which the ballast is in direct contact with
VIBRAFLEX. Normal gravitational movement,
vibration movement of the ballast, and liquid flowing
in the direction of the membrane concentrates these
fines, and gradually, a crust-like surface develops on
top of the VIBRAFLEX material. Because of the
staggered joint system, the fines do not work their
way through the full material thickness (since only
one half the joint area is present at any one point), so
the integrity of the waterproofing membrane is
preserved.
PRECAUTIONS
Keep VIBRAFLEX stacked on pallets or on a
smooth surface to prevent deformation before
application. Do not apply VIBRAFLEX over liquid
waterproofing membranes containing volatile
solvents until all the solvent has evaporated.
NOTE: WHERE VIBRAFLEX WILL BE LEFT
EXPOSED TO SUNLIGHT, IT MUST BE
PROTECTED WITH THE APPLICATION OF
ALUMINUM-FIBRED ROOF COATING.
SPECIFIER AND USER SHALL DETERMINE
SUITABILITY OF PRODUCT FOR SPECIFIC
APPLICATIONS AND ASSUME ALL
RESPONSIBILITIES IN CONNECTION
THEREWITH. Read and follow all directions prior
to application.
This material last updated August 2010.
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