Given the need to conserve natural resources, transport resources over long distances to worksites and regulations restricting landfilling, road maintenance companies are turning to techniques that cut back on the use of added materials. The recent Grenelle Environment Forum agreements have brought these concerns into even sharper focus and are driving the effort to recycle, reduce raw material and energy consumption and utilise by-products.

1. RecycloviA
IN SITU PAVEMENT RECYCLING
The solution
that revitalises roads

2. RecycloviA
PROTECTING NATURE
WITH SUSTAINABLE QUALITY
Given the need to conserve natural resources, transport resources over long distances to
worksites and regulations restricting landfilling, road maintenance companies are turning to
techniques that cut back on the use of added materials. The recent Grenelle Environment Forum
agreements have brought these concerns into even sharper focus and are driving the effort to
recycle, reduce raw material and energy consumption and utilise by-products.
Against this backdrop, Eurovia has developed Recyclovia, an in situ recycling process for flexible
and semi-rigid pavements that can be used to refurbish surface courses and if need be reinforce
pavement structures to a depth of about 150mm. Recyclovia is based on experience gleaned
by Probisa, Eurovia’s Spanish subsidiary, since 1998. The product is laid by a single compact
machine.
key
benefits
A pavement maintenance product that
protects the environment
Savings of non-renewable raw materials
Rapid refurbishment of damaged, worn
and cracked pavements
Limited disruption for road users
key
features
Up to 50 % reduction in
greenhouse gas emissions
Optimum laying rate of
3,500m2
/day
Over 6 million m2
laid to date
Energy and aggregate
savings typically
amount to
20% and more

3. Recyclovia is a cold technique that consists in breaking
up the existing pavement, treating the planed materials in
situ with an emulsion (Recyclovia E) or foamed bitumen
(Recyclovia M) and then spreading and trimming the new
mix. To perform these operations, Eurovia adapted the
most efficient commercially available machine.
Recyclovia restores the structural and surface
characteristics of damaged pavements; it constitutes an
alternative of choice to conventional road reinforcement
and overlaying techniques, especially for roads with low to
medium traffic.
AN INTELLIGENT
ALTERNATIVE
WITH MULTIPLE
BENEFITS
environment
first
Recyclovia meets the environmental goal of reducing
the utilisation of added natural materials. It obviates
the need to landfill materials and to use virgin
aggregates. It also results in a substantial reduction
in the volume and direct and indirect environmental
impact of transport. In addition, the process uses no
heat in production and laying, which also reduces
energy consumption.
and users too
Recyclovia projects can be carried out rapidly, at a
laying rate of up to 3,500 sq. metres per day. The
machine employed is very compact, limiting the
disruption experienced by users. Moreover, Recyclovia
cuts application time by 30% compared to a
conventional asphalt mix reinforcement project.

4. 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
A HIGHLY EFFICIENT PROCESS
To choose the right binder and define the formulation
of the recycled material, it is essential to perform a
thorough prior analysis of the existing structure –
pavement condition and geometry, nature and thickness
of pavement layers, identification of planings, dosing and
grade of bitumen in coated materials, deflection, traffic,
etc.
A structural design calculation then determines the
optimum recycling thickness and the nature and thickness
of the surface course to be laid subsequently.
Slow-breaking emulsion (60 or 65% bitumen)
specially formulated and produced in the group’s
factories
Foamed bitumen produced by injecting a small
quantity of water into a selected hot bitumen.
Each of these two binders can be used for the
recycling classes presented in the French Setra’s
«In-situ Recycling of Existing Pavements»
technical guide dated July 2003.
Depending on the formulation, mineral additives can
be injected during laying to increase the mechanical
performance of the treated material.
The surface area treated every year with Recyclovia
is steadily increasing in both France and Spain,
confirming the ability of the technique to meet current
environmental and economic goals.
COMPELLING
RESULTS
The special 800 HP machine used to lay Recyclovia
performs all the tasks included in the process: planing
to break up the existing materials, production of foam
bitumen (if used), dosing, binder injection and mixing
with the planed materials, dosing and spreading of
any mineral additives, adjustment as appropriate of
water content, homogenisation, mixing, spreading and
trimming of treated materials by means of a paver
screed.
Up to 2.20 metres width treated per pass
Supply of binder by tanker truck
Suitable conventional heavy compaction train to finish
the operation
Emulsion-based seal coat
Re-trafficking pending application of the final surface
course after two or three weeks of treated material
curing.
A PERFECTLY CONTROLLED
WORKSITE
choice of binder
-February2014-500copies–Photos:Euroviaphotolibrary