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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 prestressed or
precast concrete structures that require waterproofing. VIBRAFLEX
is ideal for both new and remedial waterproofing applications.
The American Railway Engineering & Maintenance of Way Association
(A.R.E.M.A.) has approved VIBRAFLEX as a component within the
waterproofing system, having passed five million cycles of vibratory
load testing.
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 and Benefits
Packaging
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THICKNESS INCHES(mm) 3/8" (9.53 mm) 1/2" (12.7 mm) |
PANEL SIZE FEET (m) 4'x8' (1.22 x 2.44m) 4'x8' (1.22 x 2.44m) |
WEIGHT-LBS(kg) PER 100 SQ. FT. 260 lbs. (117.94 kg) 350 lbs. (158.76 kg) |
Application Tool
 Roofer's Knife |
| 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. Panels may be cut to size using a sharp roofer's knife. VIBRAFLEX is shipped with anti-stick polyethylene sheets between each panel, making handling and installation fast and easy. |
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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. 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.
Specifications
A.R.E.M.A. Specification; Chapter 29 for Membrane Waterproofing.
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 of the solvent has evaporated.
NOTE: WHERE VIBRAFLEX WILL BE LEFT EXPOSED TO SUNLIGHT, IT MUST
BE PROTECTED WITH THE APPLICATION OF ALUMINUM FIBERED 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 April, 2004.
