The roads evolve and essentially degrade under heavy traffic but also under the weather conditions. One has to assert in the last time that a number of roads changes for the worse on, due to fatigue and an important ageing phenomenons. But, with the decrease and insufficiency of credits devoted to maintenance, the collectivities are faced with doing difficult choices in order to keep their road infrastructures in good conditions. Eurovia proposes from now on a technical, environmental and economic solution to keep the service quality expected by the users of the road: Gripseal®.

1. Surface dressing
and slurry surfacing
gripseal
Sustainable maintenance
®

2. GRIPSEAL®
Sustainable maintenance
The roads evolve and essentially degrade under heavy traffic but also under the weather
conditions. One has to assert in the last time that a number of roads changes for the worse on,
due to fatigue and an important ageing phenomenons. But, with the decrease and insufficiency of
credits devoted to maintenance, the collectivities are faced with doing difficult choices in order to
keep their road infrastructures in good conditions.
Eurovia proposes from now on a technical, environmental and economic solution to keep the service
quality expected by the users of the road: Gripseal®.
Key
Benefits
A
ssociation of two managed and well
known techniques
C
old and very thin techniques
S
aving on energy consumption and on
naturals ressources
F
urtive jobsites: reduced inconvenience for
users and quick opening to traffic
KEY
Figures
A sustainable maintenance
with less than 20mm thick
A technical approval for
Gripfibre® since 1993
in France
W
aterproofing of the road
S
ustainable maintenance solution for
reasonable cost allowing to postpone
heavy maintenance operations
Several millions
of fibers per m2
ATD when opening
higher than 0.8mm

3. cold
complex
The Gripseal process was developed in order to
it is a long-lasting solution for many years allowing
to wait for more comfortable budgets to carry out
heavy maintenance operations.
®
respond to an expectation regarding maintenance
Furthermore, a non-negligible characteristic, the
techniques of surface layers, at the same time rustic
road with its new surface layer appears « as new »
and sustainable.
for the users.
It allows to give back to the surface layer the
Codified for a longtime in Belgium, tested for
characteristics to waterproof the road structure
several years in Canada, the Gripseal® process
allowing then to postpone more important
is a technology transfer for Eurovia within the
maintenance operations and therefore more
expensive.
Effectively, Gripseal® allows, by the association of
surface dressing and slurry surfacing, to reinforce
group. Although it appeared recently in France, the
technique is already handled by specialized teams of
the company.
the two essential characteristics of a surface layer,
Gripseal® combines two techniques of cold
waterproofing and skid resistance:
applications in the following order:
The continuous binder film ensuring the
a 6/10 single layer surface dressing, with a
waterproofing function is thicker than with a dual
chipping mosaic slightly underdosed compared to a
layer of surface dressing or slurry surfacing,
The level of skid resistance of the slurry surfacing
is reinforced in time by those of the surface dressing
thanks to the appearance of the tops of the 6/10
chippings.
conventional surface dressing,
Gripfibre®, 0/6mm microsurfacing with fibers,
Each layer is carried out by specialized teams
of the company, with an operating time quite
Real protection for the road structure, Gripseal®
below traditional asphalt mix layings: the user’s
increases its sustainability with a reasonable cost;
inconvenience is obviously reduced.

4. The first layer of Gripseal® consists of an
almost conventional surface dressing. The
emulsion used for the surface dressing is
specially designed in order to allow a quick
increase of the cohesion; the Gripfibre® can
then be laid on the same day if the optimal
conditions are met.
Concerning the chippings with a grading of
6/10, they present the intrinsic (LA, MDE, PSV)
and elaboration characteristics (grading,
shape...) compliant to the requirements of the
standards NF EN 12271 (surface dressing) and
EN 13043.
As regards the formula of the surface dressing,
it will be adjusted from case to case (support
condition, traffic level, weather conditions).
However, it is advisable to reduce the dosing
of chippings to provide sufficient space on the
support so that Gripfibre® can play entirely its
role afterwards.
The traffic will be limited on the surface
dressing while waiting for the second layer
(installation of a temporary traffic sign with a
speed limit). Eventual loose chippings will be
swept before the laying of the Gripfibre®.
gripfibre®
Accepted for more than 10 years for
applications under every level of traffic,
the originality of Gripfibre® consists in the
incorporation in the formula of synthetic
fibers with special surface treatment. These
fibers eliminate every risk of emulsion
running or loose chippings when laying
this microsurfacing that is ensured by an
automotive mobile equipment that allows
transport and storage of the components,
their dosing, their mix and their spreading on
the road.
The aggregates of Gripfibre® come from
hard rock quarries selected by the company
for this use. They meet the requirements of
the standard EN 13043 relative to aggregates
used in hot mixes for surface layers and
EN 12273 (slurry surfacing).
The binder of Gripfibre® is Emulvia® Grip P or
Emulvia® Grip S, cationic emulsion of modified
bitumen with slow and handled breaking. On a
road with low traffic, a pure bitumen emulsion
is possible as well.
The fibers are synthetic and more than 4mm
long. Their dosing leads to reinforce Gripfibre®
with several millions of fibers per m2.
The other additives allow to regulate the
breaking of the emulsion and to adapt to the
jobsite conditions.
Emulvia®, Gripfibre® and Gripseal® are trademarks.
TECHNICAL DEPARTMENT
18, place de l’Europe - 92565 Rueil-Malmaison cedex
Tel.: +33 1 47 16 38 00 - Fax: +33 1 47 16 38 01
www.eurovia.com
technique@eurovia.com
- January 2014 - 500 copies – Photos: Eurovia photo library
The surface
dressing