{"id":11941,"date":"2021-12-29T13:10:02","date_gmt":"2021-12-29T12:10:02","guid":{"rendered":"https:\/\/eiffageconstruccion.es\/proyectos\/lifesoundless\/"},"modified":"2022-01-04T02:51:01","modified_gmt":"2022-01-04T01:51:01","slug":"lifesoundless","status":"publish","type":"avada_portfolio","link":"https:\/\/eiffageconstruccion.es\/fr\/proyectos\/lifesoundless\/","title":{"rendered":"LIFESOUNDLESS"},"content":{"rendered":"
<\/div><\/div>
<\/div><\/div>
\"Projet<\/div><\/div>
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Budget total<\/strong>: 1.448.377\u20ac \u20ac
\nDescription<\/strong>:
\nProjet de d\u00e9monstration cofinanc\u00e9 par l\u2019Union europ\u00e9enne, LIFE SOUNDLESS, ayant pour but principal de d\u00e9montrer l’efficacit\u00e9 et la durabilit\u00e9 des m\u00e9langes r\u00e9ducteurs du son de type SMA pour mitiger la pollution sonore \u00e0 l\u2019origine, la mitigation de la pollution sonore dans les agglom\u00e9rations urbaines moyennant la conception de nouveaux m\u00e9langes bitumineux r\u00e9ducteurs du son permettant de r\u00e9duire le taux d\u2019\u00e9mission sonore et avec une durabilit\u00e9 au moins \u00e9gale \u00e0 celle des m\u00e9langes de type AC conventionnels.
\nDe plus, il est ax\u00e9 sur l\u2019efficacit\u00e9 de ces m\u00e9langes dans les climats m\u00e9diterran\u00e9ens (Europe m\u00e9ridionale), o\u00f9 les conditions m\u00e9t\u00e9orologiques n\u2019ont rien \u00e0 voir avec celles des pays du Nord, avec une plus grande exp\u00e9rience dans l\u2019utilisation et les performances des m\u00e9langes poreux phonoabsorbants. Ce type de m\u00e9langes poreux dans les climats secs et chauds n\u2019a pas eu le r\u00e9sultat pr\u00e9vu dans les cas de colmatage d\u2019orifices ou de probl\u00e8mes de d\u00e9tachement de granulats dans des zones de freinage et pr\u00e9sentant des efforts tangentiels importants. De plus, afin de renforcer le caract\u00e8re environnemental des m\u00e9langes LIFE-SOUNDLESS, leur composition a \u00e9t\u00e9 enrichie de d\u00e9chets issus d\u2019autres industries dont l\u2019effet dans la r\u00e9duction du bruit a fait l\u2019objet d\u2019analyses.
\nApr\u00e8s une premi\u00e8re \u00e9tape qui a consist\u00e9 dans l\u2019\u00e9tude et la s\u00e9lection des tron\u00e7ons de d\u00e9monstration selon un crit\u00e8re sonore, parall\u00e8lement, les m\u00e9langes bitumineux r\u00e9ducteurs du son ont \u00e9t\u00e9 con\u00e7us au laboratoire moyennant l\u2019int\u00e9gration de d\u00e9chets provenant d\u2019autres secteurs industriels (poudre de caoutchouc de pneus usagers, d\u00e9chets plastiques, fibres de nylon de pneus usagers).
\nPar la suite, les tron\u00e7ons pilotes ont \u00e9t\u00e9 construits sur deux routes de la province de S\u00e9ville : un sur la route A-8058 \u00e0 Puerto Gelves, et l\u2019autre sur la route A-376 \u00e0 son passage par Montequinto.
\nEntre les deux tron\u00e7ons, 5 m\u00e9langes r\u00e9ducteurs du son ont \u00e9t\u00e9 mis en \u0153uvre, pr\u00e9alablement con\u00e7us au laboratoire, ainsi qu\u2019un m\u00e9lange de r\u00e9f\u00e9rence pour r\u00e9aliser une comparaison entre eux. En particulier, les m\u00e9langes s\u00e9lectionn\u00e9s \u00e0 l\u2019\u00e9chelle ont \u00e9t\u00e9 les suivants:
\nSc\u00e9nario 1 : A-8058
\n\u2022 M\u00e9lange SMA8 r\u00e9ducteur du son: 1 % de caoutchouc sur m\u00e9lange (bitume \u00e0 6 %)
\n\u2022 M\u00e9lange SMA8 r\u00e9ducteur du son: 1,5 % de caoutchouc sur m\u00e9lange (bitume \u00e0 6,5 %)
\nSc\u00e9nario 2 : A-376
\n\u2022 M\u00e9lange SMA8 r\u00e9ducteur du son: 0,5 % e nylon
\n\u2022 M\u00e9lange SMA8 r\u00e9ducteur du son: 1 % de plastique recycl\u00e9
\n\u2022 M\u00e9lange SMA8 r\u00e9ducteur du son: 0,5 % de caoutchouc + 0,5 % de plastique recycl\u00e9
\n\u2022 M\u00e9lange de r\u00e9f\u00e9rence: AC16 SURF S
\nEnfin, pour pouvoir \u00e9valuer le comportement m\u00e9canique et sonore des m\u00e9langes et leur \u00e9volution dans le temps, les tron\u00e7ons ont \u00e9t\u00e9 soumis \u00e0 une surveillance pendant deux ans (mesures de CPX, SPB, Absorption sonore, Imp\u00e9dance m\u00e9canique, Macrotexture, entre autres), ayant obtenu des r\u00e9sultats satisfaisants du point de vue sonore:
\n\u2022 – Le niveau de bruit Ld\u00eda a \u00e9t\u00e9 r\u00e9duit de 6 dB sur la route A-376 (route interurbaine \u00e0 vitesse moyenne de 70 km\/h) et de 3 dB sur la route A-8058 (route urbaine \u00e0 vitesse moyenne de 50 km\/h).
\n\u2022 – Les m\u00e9langes SOUNDLESS permettent de r\u00e9duire le bruit de la route de 3 dB par rapport \u00e0 un m\u00e9lange de r\u00e9f\u00e9rence fra\u00eechement mis en \u0153uvre (AC16 surf) \u00e0 basse vitesse (50 km\/h) et de 4 dB \u00e0 vitesse moyenne (80 km\/h).<\/p>\n

Projet LIFESOUNDLESS LIFE14 ENV\/ES\/000708
\nAvec la collaboration de l\u2019instrument financier LIFE de l\u2019Union europ\u00e9enne.<\/p>\n<\/div><\/div><\/div>

<\/i>T\u00e9l\u00e9charger le rapport Layman PDF<\/span><\/a><\/div><\/div><\/div>
<\/i>T\u00e9l\u00e9charger le fichier PDF LIFE SOUNDLESS<\/span><\/a><\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

Nouvelle G\u00e9n\u00e9ration d\u2019enrobage biologique \u00e0 base de mat\u00e9riaux recycl\u00e9s, de haute durabilit\u00e9 et de haute performance sonore.
\nNouvelle g\u00e9n\u00e9ration d\u2019agglom\u00e9r\u00e9s asphaltiques \u00e0 base de mat\u00e9riaux recycl\u00e9s de haute performance
\nsonore et de haute durabilit\u00e9.<\/p>\n","protected":false},"author":2,"featured_media":10166,"menu_order":6,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"portfolio_category":[196],"portfolio_skills":[],"portfolio_tags":[],"class_list":["post-11941","avada_portfolio","type-avada_portfolio","status-publish","format-standard","has-post-thumbnail","hentry","portfolio_category-projets-dinnovation"],"yoast_head":"\nLIFESOUNDLESS - Eiffage Construcci\u00f3n<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/eiffageconstruccion.es\/fr\/proyectos\/lifesoundless\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"LIFESOUNDLESS - Eiffage Construcci\u00f3n\" \/>\n<meta property=\"og:description\" content=\"Nouvelle G\u00e9n\u00e9ration d\u2019enrobage biologique \u00e0 base de mat\u00e9riaux recycl\u00e9s, de haute durabilit\u00e9 et de haute performance sonore. 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