TEMPERA ®

Warm mIX prODUCT raNGe

Innovation to serve the environment

Tempera®

THe Warm mIX prODUCT raNGe FOr SUSTaINaBLe rOaDS

COmpeLLING aDVaNTaGeS

Performances validated in the laboratory

Surrounding communities better protected from harmful effects

A highly preserved environment

TeLLING FIGUreS

No fume or odouremissions

Greenhouse gas emissions reduced

by 18 up to 40 %

Energy savings

of 20 up to 40 %

Mixing temperature reduced

by up to 50°C (122°F)

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®.

eXCeLLeNT eNVIrONmeNTaL perFOrmaNCeReducing 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.

Tempera® is the result of a combination of

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.

ON COUrSe FOr COmFOrT aND SaFeTY

ONGOINGINNOVaTION 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.

OUTSTaNDINGreSULTS 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.

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

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Tempera® and Evotherm® are registered trademarks.

Tempera®:a SUSTaINaBLe DeVeLOpmeNT mILeSTONe, reDUCING THe CarBON FOOTprINT OF THe rOaDWOrKS INDUSTrY

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.