{"id":110383,"date":"2025-10-29T07:56:45","date_gmt":"2025-10-29T06:56:45","guid":{"rendered":"https:\/\/www.maccaferri.com\/fr\/success-stories\/renforcement-denrobe-route-departementale-var-esterel\/"},"modified":"2026-02-16T15:40:33","modified_gmt":"2026-02-16T14:40:33","slug":"renforcement-denrobe-route-departementale-var-esterel","status":"publish","type":"stories","link":"https:\/\/www.maccaferri.com\/fr\/exemples-de-r\u00e9ussites\/renforcement-denrobe-route-departementale-var-esterel\/","title":{"rendered":"RENFORCEMENT D’ENROB\u00c9 ROUTE D\u00c9PARTEMENTALE VAR ESTEREL"},"content":{"rendered":"
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Challenge<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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La route nationale 7 relie Paris \u00e0 la fronti\u00e8re italienne. A cheval entre les d\u00e9partements des Alpes Maritimes et du Var, elle traverse un magnifique massif de roche rouge : l\u2019Est\u00e9rel. La route prend alors des allures de routes de montagnes avec une forte d\u00e9clivit\u00e9 (altitude max : 350 m) et un parcours tr\u00e8s sinueux. Cette route, tr\u00e8s touristique en \u00e9t\u00e9, est aussi un axe essentiel pour les habitants du massif car elle relie les deux principales villes environnantes : l’agglom\u00e9ration Cannoise \u00e0 l’est et Fr\u00e9jus-St Rapha\u00ebl \u00e0 l’ouest. Le conseil d\u00e9partemental du Var g\u00e8re d\u00e9sormais cette route devenue route d\u00e9partementale. La section de chauss\u00e9e r\u00e9nov\u00e9e datait de 10 ans. Elle pr\u00e9sentait une d\u00e9gradation prononc\u00e9e avec une fissuration g\u00e9n\u00e9ralis\u00e9e et des d\u00e9collements en certain point Afin de renforcer la nouvelle chauss\u00e9e, et accroitre sa dur\u00e9e de vie, le CG 83 a opt\u00e9 pour une g\u00e9ogrille en fibre de verre destin\u00e9e au renforcement des enrob\u00e9s. <\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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Solution<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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La g\u00e9ogrille est destin\u00e9e \u00e0 allonger la dur\u00e9e de service de la nouvelle chauss\u00e9e d’environ 20 %. En limitant la fatigue de l’enrob\u00e9 sous les sollicitations cycliques des charges roulantes, la g\u00e9ogrille permet d’atteindre une dur\u00e9e de service de 12 ans contre 10 ans sans g\u00e9ogrille. Dans le cadre de la r\u00e9habilitation d’une partie de la DN7, la soci\u00e9t\u00e9 France Maccaferri a fourni 9000 m\u00b2 de g\u00e9ogrille Macgrid AR 5G.7 \u00e0 la soci\u00e9t\u00e9 Colas. Cette g\u00e9ogrille en fibre de verre pr\u00e9sente une r\u00e9sistance \u00e0 la traction de 50 kN\/m dans les deux directions avec un tr\u00e8s fort module initial (raideur > 2000 kN\/m). Elle est associ\u00e9e \u00e0 un tr\u00e8s l\u00e9ger g\u00e9otextile qui facilite d’adh\u00e9sion au support. Malgr\u00e9 la forte sinuosit\u00e9 de la route, Colas est parvenu \u00e0 installer la g\u00e9ogrille apr\u00e8s application d’une \u00e9mulsion dos\u00e9e \u00e0 800 g de bitume r\u00e9siduel \/ m\u00b2. <\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>

Used Products<\/h2>
\"MacGrid<\/div>
MacGrid AR<\/h6>Gr\u00e2ce \u00e0 ses capacit\u00e9s de haute performance, la MacGrid\u00ae AR est id\u00e9ale pour les projets d’infrastructure, l’entretien des routes et les op\u00e9rations de<\/span>Voir\n \n <\/a>
star<\/span><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

La g\u00e9ogrille est destin\u00e9e \u00e0 allonger la dur\u00e9e de service de la nouvelle chauss\u00e9e d'environ 20 %. En limitant la fatigue de l'enrob\u00e9 so<\/p>\n","protected":false},"featured_media":9445,"parent":0,"menu_order":0,"template":"","stories-category":[],"stories-tag":[],"class_list":["post-110383","stories","type-stories","status-publish","has-post-thumbnail","hentry"],"acf":{"products":[113633],"applications":[103520,103520],"solutions":[103556],"sectors":[103454]},"yoast_head":"\nRENFORCEMENT D'ENROB\u00c9 ROUTE D\u00c9PARTEMENTALE VAR ESTEREL - Maccaferri France<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez nos r\u00e9ussites : RENFORCEMENT D'ENROB\u00c9 ROUTE D\u00c9PARTEMENTALE VAR ESTEREL. 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