3E® warm mix: a cooLer way to protect the environmentWith manufacturing and application temperatures that are 40°C to 45 °C lower than conventional hot mixes,3E® Environmentally-friendly, Energy Efficient warm mixes help ensure energy savings and greenhouse gas reductionsof 15% to 25%. When 3E® is combined with a recycling technique to make 3E®+R, up to 50% reclaimed asphaltpavement [RAP] can be used. 3E® and 3E®+R mixes are designed to provide environmentally-friendly road surfacing,at the heart of the French Grenelle Environnement roundtable agreements. Their environmental performance pavesthe way for responsible roads.rhe road forward
Jean-louis MarchandPublication Manager• europeanroadsre v iewRevue generale des routeset des aerodromes SAS, editeur132 rue de Rivoli, 75001 ParisTel. 01 4073 SO 00 - Fax 01 49 52 01 SOTo subscribe4 ERR (Europeanroads review)125 € France, Switzerland, EU135 € other countries35 € per copyHonorary PresidentsFran~ois Bonis CharancleYves GhironPublication ManagerPresidentJean-Louis Marchandjlmarchand@editions-rgra.comManaging EditorMarie-Fran~oise Ossolamfossola@editions-rgra.comMaquetteRed LineTel. 0141 1401 SOAdvertisingEmmanuelle Hammaouiehammaoui@editions-rgra.comCommission paritaire n° 0111TS025SImprimerie Chi rat744, rue de Sainte-Colombe42540 Saint-Just-Ia-PendueTel. 04 77 63 25 44 - Fax 04 77 63 50 13Les articles figurant au sommaire de la RevueGenerale des routes sont publies sous I'entiereresponsabilite de leurs auteurs. Tousdroits de reproduction, adaptation, totale oupartielle, France ou etranger, sous quelqueforme que ce soi, sont expressement reserves(Copyright by RGRA). Ouvrage protege ;photocopie interdite, meme partielle (loi du11 mars 1957), qui constituerait contrefa~on(Code penal, article 425).Depot legal . Spring 2011 • W 201106.0325ISSN 1763-30S7In order to receive future editions, I inviteyou to fill the inserted subscription formand send it back to us as soon as possible;in this way you will not be deprivedof the information you are lookingand that ERR provides you with.Please email your requestat the following address:rgra@editions~rgra.(omgoPaving of a highway sectionin France using warmmix asphalts producedwith chemical additivesIIlnnovation and willingnessto change are needed llThis issue of europeanroads review focuses on the subject of warm mixes.Reviewing the past ten years and how warm mix technologyhas gradually developed is very interesting because it showshow difficult it is to change, and how simple it is to innovate,when you are willing to change the way you think (or the wayyou have always thought) .Still ten years ago mixes needed to be as hot as possible for a lot of reasons(delivery distance, handling ease, etc.); everything had to be done to avoidor eliminate water during production; energy was cheap, nobody spokeabout (0 2 , those were the old good days; it was the past century.Whoever was first to think of adding water in the production process to reducethe required temperature is unknown or may be controversial.But he (or she) opened a way that will have a very strong influencein the paving business throughout our century!The goals that have been ach ieved in the USA in 2010 (about 36 million tonsof warm mixes produced in the year!), the various techniques usedfor producing several types of mixes, reaching different levelsof temperature between 900( to 135°(, offering a range of solutionsfor clients depending on their needs and the price they are ready to pay,are exceptional. All of which is the result of joint efforts between asphaltproducers, manufacturers of equipment, paving companies, workersrepresentatives, laboratories and Public Administrations, working towardsreduced exposure to bitumen fumes, which only appears above 135°C.The europeanroads review is dedicated primarily to the exchangeof experiences or best practices in road construction between Europeancountries; but comparison with North American developments is alsovery useful, especially when it challenges us by asking why there is such a gapbetween the use of warm mixes in the USA and their use in Europewhich is generally estimated to be at a very" modest" level.Everyone sees and feels that things are changing worldwide very quickly.Mobility and infrastructure are increasingly needed, but the environmentalissues, the public expectations and the lack of money bring us in a pointwhere we have to rethink how we are used to working . Innovationand willingness to change are needed. The development of warm mixesin Europe will be a good indicator of our capability to meet the challengeswe are facing.
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www.eecongress2012.org
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