{"id":604,"date":"2021-03-01T18:17:13","date_gmt":"2021-03-01T18:17:13","guid":{"rendered":"http:\/\/allu.nipro.pro-linuxpl.com\/?p=604"},"modified":"2021-03-01T18:17:15","modified_gmt":"2021-03-01T18:17:15","slug":"samarbete-for-atervinning-av-betong","status":"publish","type":"post","link":"https:\/\/allu.net\/sv\/samarbete-for-atervinning-av-betong\/","title":{"rendered":"Samarbete f\u00f6r \u00e5tervinning av betong"},"content":{"rendered":"<?xml encoding=\"utf-8\" ?><p>Allu och Mapei har tagit fram en l&ouml;sning f&ouml;r att omvandla f&auml;rsk returbetong till ett h&ouml;gkvalitativt &aring;tervunnet granulat.<a href=\"https:\/\/f.nordiskemedier.dk\/2o59vj56xu08aeeb.jpg\">2Bilder<\/a>Granulat av betong som sedan kan anv&auml;ndas som ballastmaterial i ny betong.<br><\/p><p>Metoden &auml;r h&ouml;gmobil och effektiv och den bed&ouml;ms ge vinster b&aring;de f&ouml;r milj&ouml;n och betongproducenter eller &aring;tervinnare.<\/p><p>Systemet heter Circulus och riktar sig till betongproducenter och betong&aring;tervinningsf&ouml;retag som vill minska kostnaderna f&ouml;r hantering av betongavfall. F&ouml;rutom de positiva milj&ouml;effekterna, genom minskat behov nytt material, kan systemet generera betydande besparingar i produktionen genom kraftigt reducerade deponikostnader och minskade kostnader f&ouml;r ink&ouml;p av ballast till ny betong.<\/p><p>Systemet &auml;r enkelt och kr&auml;ver minimala investeringar: Konceptet best&aring;r av Mapeis Re-con Zero-system och Allus system Transformer. Med Re-Con Zero omvandlas v&aring;t betong till ett torrt betongmaterial. Transformer krossar sedan betongmaterialet till granulat i r&auml;tt angiven fraktionsstorlek, som sedan &aring;tervinns genom inblandning i ny betong. F&ouml;r betongtillverkare medf&ouml;r detta betydande besparingar genom att man kan &aring;tervinna granulatet vid nytillverkning av betong. Mellan 5 och 30 % av ballasten f&aring;r idag ers&auml;ttas med &aring;tervunnet material. Produkten fr&aring;n Circulus-systemet uppfyller kraven enligt betongstandarden EN-206.<\/p><p>Systemet minskar ocks&aring; m&auml;ngden avfallslam som bildas vid tv&auml;tt av betongbilar. Avfallsslam &auml;r en milj&ouml;utmaning eftersom det m&aring;ste g&aring; till deponi och d&auml;rmed en extra kostnad f&ouml;r betongproducenter.<\/p><p>Den globala f&ouml;rbrukningen av betong &auml;r 23 miljarder ton per &aring;r. Milj&ouml;belastningen fr&aring;n framf&ouml;r allt cementen i betongen &auml;r tyv&auml;rr stor. Man ber&auml;knar att cirka fem procent av v&auml;rldens koldioxidutsl&auml;pp h&auml;rr&ouml;r fr&aring;n cement- och betongproduktion och d&auml;rmed &auml;r sektorn idag v&auml;rldens tredje st&ouml;rsta utsl&auml;ppsk&auml;lla av koldioxid.<\/p><p>Globalt returneras mellan 2 och 5 procent av den betong som tillverkas oanv&auml;nd. Detta p&aring; grund av kvalitetsproblem (betong &auml;r en f&auml;rskvara) eller &ouml;verbest&auml;llning exempelvis vid en byggarbetsplats. Detta inneb&auml;r att varje &aring;r m&aring;ste cirka 460 miljoner ton tas tillbaka av betongproducenter v&auml;rlden &ouml;ver och hanteras p&aring; n&aring;got s&auml;tt. Den allra st&ouml;rsta delen hamnar p&aring; deponi. Hanteringen av returbetong leder ocks&aring; den till stora koldioxidutsl&auml;pp p&aring; grund av krossning och transporter. 53 miljoner ton koldioxid sl&auml;pps p&aring; grund av detta ut i on&ouml;dan.&nbsp;&nbsp;Circulussystemet g&ouml;r det m&ouml;jlig att spara upp till 96 % av dessa koldioxidutsl&auml;pp. Returbetongen beh&ouml;ver inte deponeras utan kommer ist&auml;llet till anv&auml;ndning som ett &aring;tervunnet ballastmaterial.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Allu och Mapei har tagit fram en l&ouml;sning f&ouml;r att omvandla f&auml;rsk returbetong till ett h&ouml;gkvalitativt &aring;tervunnet granulat.2BilderGranulat av betong som sedan kan anv&auml;ndas som ballastmaterial i ny betong. Metoden &auml;r h&ouml;gmobil och effektiv och den bed&ouml;ms ge vinster b&aring;de f&ouml;r milj&ouml;n och betongproducenter eller &aring;tervinnare. Systemet heter Circulus och riktar sig till betongproducenter och [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[121],"tags":[],"class_list":["post-604","post","type-post","status-publish","format-standard","hentry","category-nyheter-sv"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Samarbete f\u00f6r \u00e5tervinning av betong - ALLU Sverige<\/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:\/\/allu.net\/sv\/samarbete-for-atervinning-av-betong\/\" \/>\n<meta property=\"og:locale\" content=\"sv_SE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Samarbete f\u00f6r \u00e5tervinning av betong - ALLU Sverige\" \/>\n<meta property=\"og:description\" content=\"Allu och Mapei har tagit fram en l&ouml;sning f&ouml;r att omvandla f&auml;rsk returbetong till ett h&ouml;gkvalitativt &aring;tervunnet granulat.2BilderGranulat av betong som sedan kan anv&auml;ndas som ballastmaterial i ny betong. 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