With ecological and energy requirements becoming ever more stringent, the various roadworks industry stakeholders are increasingly focusing on lowering asphalt mix production and laying temperatures.

1. WARM MIX PRODUCT RANGE
TEMPERA
Innovation to serve
the environment
®

2. TEMPERA®
THE WARM MIX PRODUCT RANGE
FOR SUSTAINABLE ROADS
With ecological and energy requirements becoming ever more stringent, the various roadworks
industry stakeholders are increasingly focusing on lowering asphalt mix production and laying
temperatures.
With a pioneering product, launched in 2003, Eurovia has become a leader in the field, with
several millions of tonnes laid to date. Today, all of Eurovia’s so-called warm processes are
gathered in a range named Tempera®.
compelling
Advantages
Telling
Figures
P
erformances validated in the laboratory
Surrounding communities better
protected from harmful effects
A highly preserved environment
Mixing temperature reduced
by up to 50°C
(122°F)
Greenhouse gas emissions reduced
by 18
up to 40 %
Energy savings
of 20
up to 40 %
No fume or odour
emissions

3. ON COURSE FOR
COMFORT AND SAFETY
excellent
ENVIRONMENTAL
PERFORMANCE
Tempera® is the result of a combination of
Reducing mixing temperature is equivalent to reducing
the quantity of fuel needed to heat the aggregates in
the mix plant by 20%. Asphalt mixes in the Tempera®
range also exhibit very substantial reductions in
emissions of CO, CO2, NOx and SOx generated by fossil
fuel combustion.
technologies, applied to both products and
processes (anhydrous additives or foaming),
that significantly reduce asphalt mix production
and laying temperatures. In this product range,
surfacings retain the same characteristics as
conventional hot mix solutions, while production
temperatures are reduced, depending on the
mixing plant, aggregate petrography and type
of mix. For example, with Evotherm® MA3, the
reduction in temperature can reach 30°C, when it
is 50°C (122°F) with Evotherm® DAT5.
By eliminating fumes and odours, these new mixes
ensure greater comfort for application teams and
the surrounding community during laying.
Other than its temperature lowering feature the
Evotherm® DAT5 and MA3 additives are bonding
agents wich give the mixes similar properties than
traditional hot coated aggregates.
outstanding
RESULTS
Compelling results observed in the laboratory
and confirmed on the worksite have validated the
performance of the products and processes in the
Tempera® range. A wide variety of new asphalt mixes
and mixes incorporating reclaimed asphalt pavement
are feasible. However, as for any hot asphalt mix, a
preliminary laboratory study remains indispensable.
To date, the various types of aggregate tested have
all proved compatible with the Eurovia range of
processes.
ongoing
innovation
In parallel, laboratory work continues and new
additives are currently being tested. The Eurovia
research centre in Mérignac (France) is also studying
the rheology and modelling the temperature behaviour
of the Tempera® range of asphalt mixes.

4. The use of warm mix technologies is
already growing at a fast pace and will
be further expanding in future, driven
by rising energy costs and changes
in legislation aimed at protecting the
environment.
The high-performance technologies
of the Tempera® range are suitable for
all types of pavements and constitute
ecological road design solutions.
Tempera® and Evotherm® are registered trademarks.
TECHNICAL DEPARTMENT
18, place de l’Europe - 92565 Rueil-Malmaison cedex - France
Tel.: +33 1 47 16 38 00 - Fax: +33 1 47 16 38 01
www.eurovia.com
technique@eurovia.com
November 2012 – Photos: Eurovia photo library
Tempera :
A SUSTAINABLE
DEVELOPMENT MILESTONE,
REDUCING THE CARBON
FOOTPRINT OF THE
ROADWORKS INDUSTRY
®