Fibredec
Hidden Strength Visible Benefits
Fibredec is a unique combination of bitumen emulsion, chopped
glass fibre and aggregate. Together these form a strong, flexible
and waterproof matrix which has a variety of uses both above and
below the road surface.
The treatment is a patented and proprietary process applied by
Colas and our fully trained and licenced teams. The treatment can
be applied as a single coat, double coat or a racked dressing and
can be laid to the required thickness depending on the site
application.
Fibredec is highly versatile and can applied on a variety of sites
including; carriageway, central reservations, car parks, parks and
recreational areas, waterways, footpaths, towpaths and cycleways
and driveways.
The applicator vehicles have been developed to accommodate both
large and small areas. In addition to its excellent engineering
benefits, Fibredec also provides a prestigious finish that
complements the external environment.
In a single operation, specialist machinery cuts and applies the
glass fibres between two layers of Fibredec binder to form a
sandwich type matrix. Selected aggregates are then added via a
conventional or purpose built chipping spreader.
Application is completed by rolling and sweeping, leaving a
crack and fatigue resistant surfacing characterised by enhanced
tensile strength.
Above and below the road surface
Above the road surface Fibredec will waterproof and bind cracked
and crazed surfaces, restoring skid resistance and enhancing the
appearance of the surface. The treatment can be utilised to treat
cracked, crazed and potholed roads as an efficient alternative. The
result is a high durable surface offering enhanced resistance to
cracking and pothole recurrence.
For decorative and aesthetic purposes Fibredec can also be used,
Fibredec is one of our many heritage surfacing techniques. The
treatment still uses a combination of bitumen emulsion and chopped
glass fibre however for the aggregates a wide range of natural or
pigmented colours maybe used. A wide range of colours are available
to choose from and customers can benefit from a decorative design
whilst still gaining the enhanced tensile strength and durability
the treatment provides.
Fibredec as a SAMI
Below the road surface Fibredec takes on a different form as a
Stress Absorbing Membrane Layer (SAMI), a crack inhibiting membrane
layer. The treatment is sprayed in-situ for oversite sealing and
binding prior to application of the subsequent layers. The
treatment still uses a combination of bitumen emulsion and chopped
glass fibre and aggregate however it is applied at a subgrade or
sub base level, in asphalt pavements. The fibres can vary in length
from 30mm to 90mm and the rate of spread from 30g/sqm to 90g/sqm.
The tensile strength of the glass fibres provides reinforcement.
Selected aggregates are then added via a conventional or purpose
built chipping spreader. Fibredec SAMI is particularly suitable for
use when applied under Microasphalts, thin surfacing and Surface
Dressing.
Unlike conventional SAMIs it is faster to apply through the
state of the art, specialised applicator vehicles.
