![\"\"](\"https:\/\/steypustodin.is\/wp-content\/uploads\/2023\/03\/Rafvaeding-i-steypuidnadi-1.jpg\")
\u00cdmynd steinsteypu \u00feegar kemur a\u00f0 sj\u00e1lfb\u00e6rni er ekki g\u00f3\u00f0. Samt er steinsteypa umhverfisv\u00e6nt efni, unnin \u00far n\u00e1tt\u00farulegu hr\u00e1efni og er full endurvinnanleg. Helsti gallinn er kolefnisf\u00f3tspor steypunnar sem kemur \u00fat fr\u00e1 orkufrekri framlei\u00f0slu \u00e1 sementi og efnahvarfi \u00ed framlei\u00f0sluferli sem veldur mikilli koltv\u00eds\u00fdringsmengun.<\/p>\n
Framlei\u00f0sla \u00e1 hef\u00f0bundnu Portland sementi losar um 890 kg\/t CO2 . Undanfarin \u00e1r hafa sementsframlei\u00f0endur \u00fer\u00f3a\u00f0 n\u00fdjar sementstegundir sem innihalda mun minna sementsgjall og er \u00feess \u00ed sta\u00f0 notu\u00f0 flugaska, gjall \u00far m\u00e1lmframlei\u00f0slu, brenndur leir og n\u00e1tt\u00farulegt pozzolan efni eins og m\u00f3berg. \u00dear me\u00f0 hefur tekist a\u00f0 draga verulega \u00far kolefnisspori sementsins og \u00ed dag eru til sementstegundir sem eru me\u00f0 minna en 600 kg\/t CO2 eq. En \u00fea\u00f0 dugar ekki til.<\/p>\n
\u00dea\u00f0 er nau\u00f0synlegt a\u00f0 steypui\u00f0na\u00f0urinn vinni markvisst a\u00f0 \u00fev\u00ed a\u00f0 draga \u00far kolefnisf\u00f3tspori \u00e1 me\u00f0an framkv\u00e6mdir standa yfir. \u00cd gr\u00e6na samkomulaginu \u00ed Evr\u00f3pu (European Green Deal, EC 2019a) kemur fram a\u00f0 \u00fe\u00f6rf ver\u00f0i \u00e1 90% minnkun \u00e1 losun gr\u00f3\u00f0urh\u00fasa-lofttegunda fr\u00e1 v\u00f6ruflutningi fyrir \u00e1ri\u00f0 2050 til a\u00f0 n\u00e1 loftslagshlutleysi fyrir hagkerfi\u00f0 \u00ed heild sinni.<\/p>\n![\"\"](\"https:\/\/steypustodin.is\/wp-content\/uploads\/2023\/03\/steinsteypudagur-2023-Rafmagnsbilar-Kai-6.png\")
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\u00cdslenska r\u00edkisstj\u00f3rnin er b\u00fainn a\u00f0 skuldbinda sig til a\u00f0 standa vi\u00f0 \u00feau markmi\u00f0 sem sett eru \u00ed EGD. Steypa er \u00feungt byggingarefni og flutningur hennar losar miki\u00f0 af gr\u00f3\u00f0urh\u00fasalofttegundum eins og CO2 . \u00c1 \u00e1rinu 2021 var \u00e1rsframlei\u00f0sla steypu \u00e1 h\u00f6fu\u00f0borgarsv\u00e6\u00f0inu um 250.000 m3 . A\u00f0 me\u00f0altali eru steypub\u00edlar lesta\u00f0ir me\u00f0 um 6,7 m3 steypu og \u00fev\u00ed voru \u00e1ri\u00f0 2021 samtals um 75.000 steypub\u00edlar b\u00e1\u00f0ar lei\u00f0ir. Me\u00f0alfjarl\u00e6g\u00f0 fr\u00e1 byggingarsta\u00f0 a\u00f0 steypust\u00f6\u00f0 er \u00e1 h\u00f6fu\u00f0borgarsv\u00e6\u00f0inu um 15 km. Mi\u00f0a\u00f0 vi\u00f0 \u00feessar forsendur h\u00e9r a\u00f0 framan m\u00e1 \u00e1\u00e6tla a\u00f0 steypub\u00edlaflotinn hafi eki\u00f0 samtals um 1.100.000km \u00e1ri\u00f0 2021 sem gerir samtals eldsneytisey\u00f0slu \u00fear me\u00f0 um 700.000L af d\u00edsel. Kolefnisf\u00f3tspor eins l\u00edters af d\u00edsel er 3,07 kg CO2 eq (brunnur a\u00f0 hj\u00f3lum).<\/p>\n
![\"\"](\"https:\/\/steypustodin.is\/wp-content\/uploads\/2023\/03\/steinsteypudagur-2023-Rafmagnsbilar-Kai1-10.jpg\")
Eldsneytisey\u00f0sla steypub\u00edla per 100 km er t\u00f6luvert h\u00e6rri en flutningab\u00edla vegna \u00feess a\u00f0 \u00feeir eru \u00ed \u201elausagangi\u201c \u00e1 me\u00f0an steypa er \u00ed tunnu. Samkv\u00e6mt t\u00f6lum sem Steypust\u00f6\u00f0in hefur teki\u00f0 saman er me\u00f0almengun steypunnar vegna flutnings um 6,7 kg CO2 eq \/ m3 . \u00dear me\u00f0 var heildarlosun vegna flutnings \u00e1 steypu 1.675.000 kg CO2 eq \u00e1ri\u00f0 2021.<\/p>\n
I\u00f0na\u00f0urinn hefur be\u00f0i\u00f0 lengi eftir lausnum sem geta komi\u00f0 \u00ed sta\u00f0 d\u00edselkn\u00fainna flutningab\u00edla. S\u00ed\u00f0an 2021 hefur Steypust\u00f6\u00f0in jafna\u00f0 eldsneytisnotkun s\u00edna \u00fat me\u00f0 endurheimtun votlendis \u00ed samvinnu vi\u00f0 Landgr\u00e6\u00f0sluna. En vi\u00f0 leitu\u00f0um a\u00f0 sterkari lausnum til a\u00f0 draga \u00far kolefnisf\u00f3tspori okkar.<\/p>\n
\u00cd okt\u00f3ber 2022 voru \u00e1 Bauma s\u00fdningunni \u00ed Munchen kynntar n\u00fdjar rafmagnslausnir og \u00ed framhaldinu \u00e1kva\u00f0 Steypust\u00f6\u00f0in a\u00f0 kaupa rafmagns steypu- og dr\u00e1ttarb\u00edla. Oft er sagt a\u00f0 rafmagnsb\u00edlar s\u00e9u ekki eins umhverfisv\u00e6nir og menn vilja meina. \u00cd lj\u00f3si \u00feess birti Scania sk\u00fdrslu um samanbur\u00f0 jar\u00f0efnaeldsneytiskn\u00fana v\u00f6rub\u00edla (ICEV internal combustion engine vehicle) og rafmagnskn\u00fana v\u00f6rub\u00edla (BEV battery electric).![\"\"](\"https:\/\/steypustodin.is\/wp-content\/uploads\/2023\/03\/steinsteypudagur-2023-Rafmagnsbilar-Kai1-11.png\")
Framlei\u00f0sla \u00e1 BEV hefur \u00ed f\u00f6r me\u00f0 s\u00e9r meiri umhverfis\u00e1hrif, a\u00f0allega vegna orkufrekrar framlei\u00f0slu rafgeyma. Losun gr\u00f3\u00f0urh\u00fasalofttegunda h\u00e6kkar \u00far 27,5 tonnum CO2 eq (ICEV framlei\u00f0sla) \u00ed 53,6 tonn CO2 eq fyrir hvern BEV sem er framleiddur.<\/p>\n
<\/p>\n![\"\"](\"https:\/\/steypustodin.is\/wp-content\/uploads\/2023\/03\/steinsteypudagur-2023-Rafmagnsbilar-Kai1-12.png\")
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Vegna meiri losunar gr\u00f3\u00f0urh\u00fasalofttegunda fr\u00e1 framlei\u00f0slunni m\u00e1 l\u00edta svo \u00e1 a\u00f0 BEV s\u00e9u \u00ed kolefnisskuld \u00ed samanbur\u00f0i vi\u00f0 ICEV. \u00deessi skuld \u00e1 gr\u00f3\u00f0urh\u00fasalofttegundum jafnar sig \u00fe\u00f3 \u00fat \u00e1 notkunarfasa af \u00fev\u00ed a\u00f0 kolefnisf\u00f3tspor per ekinn k\u00edl\u00f3meter er t\u00f6luvert minna. Hversu hratt \u00feessum n\u00fallpunkti er n\u00e1\u00f0 er h\u00e1\u00f0 orkubl\u00f6ndu \u00ed rafmagnsframlei\u00f0lu.<\/p>\n
\u00c1 \u00cdslandi er losun koltv\u00eds\u00fdrings fr\u00e1 jar\u00f0hitavirkjunum l\u00edtil mi\u00f0a\u00f0 vi\u00f0 annarskonar rafmagnsframlei\u00f0slu. Rafmagnframlei\u00f0sla me\u00f0 jar\u00f0hita losar 7,5 g\/kWs \u00e1 m\u00f3ti 800g\/ kWs \u00feegar rafmagn er framleitt \u00ed kolaorkuveri. Scania er a\u00f0 reiknar me\u00f0 a\u00f0 munur milli BEV og ICEV s\u00e9 kominn \u00e1 n\u00fall eftir 33.000 til 68.000 km (28 t \u00feriggja axla b\u00edl) . \u00c1 me\u00f0an kolefnisf\u00f3tspor hef\u00f0bundinna 28t b\u00edla (ICEV) er um 430 t CO2 eq \u00e1 l\u00edft\u00edma er kolefnisf\u00f3tspor 28 t BEV 63t CO2 eq \u00feegar 100 % gr\u00e6nt rafmagn er nota\u00f0 til a\u00f0 hla\u00f0a rafgeyminn.<\/p>\n
Steypust\u00f6\u00f0in er a\u00f0 stefnir a\u00f0 orkuskiptum og markmi\u00f0 er a\u00f0 skipta \u00fat 70% flotans fyrir \u00e1ri\u00f0 2032. \u00cd dag er enginn me\u00f0 reynslu hvernig rafmagnssteypub\u00edlar henta \u00ed okkar umhverfi en vi\u00f0 h\u00f6fum fulla tr\u00fa \u00e1 a\u00f0 \u00feessi lei\u00f0 s\u00e9 s\u00fa r\u00e9tta.<\/p>\n![\"\"](\"https:\/\/steypustodin.is\/wp-content\/uploads\/2023\/03\/Bara-rafvaeding.jpg?_t=1686060366\")
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Fyrstu b\u00edlarnir sem ver\u00f0a teknir \u00ed notkun \u00ed byrjun \u00e1rsins ver\u00f0a af tegund Putzmeister IONTRON. Leyfileg samtals\u00feyngd er 32 t og \u00fear me\u00f0 geta \u00feessir b\u00edlar vera me\u00f0 allt a\u00f0 8 m3 steypu um bor\u00f0. Rafgeymarnir \u00ed \u00feessum b\u00edlum eru me\u00f0 350 kWh sem \u00e1 a\u00f0 duga \u00ed \u00e1tta vinnut\u00edma. En steypui\u00f0na\u00f0urinn er ekki bara a\u00f0 nota eldsneyti \u00ed flutning \u00e1 steypu heldur er einnig t\u00f6luver\u00f0 notkun eldsneytis vi\u00f0 d\u00e6lingu \u00e1 steypu. Eldsneytisnotkun vi\u00f0 d\u00e6lingu er um einn l\u00edter d\u00edsel per r\u00fammetra. \u00cd dag er 75% af allri steypu d\u00e6lt og mi\u00f0a\u00f0 vi\u00f0 \u00fea\u00f0 var kolefnisf\u00f3tspor steypu sem var d\u00e6lt \u00e1 \u00e1rinu 2021 um 575.000 kg CO2 eq.<\/p>\n![\"\"](\"https:\/\/steypustodin.is\/wp-content\/uploads\/2023\/03\/steinsteypudagur-2023-Rafmagnsbilar-Kai3-17.png\")
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Steypust\u00f6\u00f0in hefur panta\u00f0 eina Putzmeister IONTRON d\u00e6lu sem er \u00fatb\u00fain me\u00f0 rafmagnsglussad\u00e6lu til a\u00f0 d\u00e6la steypu \u00e1 verksta\u00f0 me\u00f0 rafmagni.<\/p>\n![\"\"](\"https:\/\/steypustodin.is\/wp-content\/uploads\/2023\/03\/steinsteypudagur-2023-Rafmagnsbilar-Kai3-20.jpg\")
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Samanlagt er h\u00e6gt a\u00f0 draga \u00fat kolefnisf\u00f3tspori um t\u00e6plega 10 kg\/m3 CO2 eq. En \u00fea\u00f0 er ekki einungis loftmengun sem er \u00e1hyggjuefni heldur er hlj\u00f3\u00f0mengun einnig st\u00f3rt og vaxandi vandam\u00e1l, s\u00e9rstaklega \u00ed \u00fe\u00e9ttb\u00fdli. Hlj\u00f3\u00f0stig hef\u00f0bundinna steypub\u00edla er um 70 dB \u00feegar eki\u00f0 er \u00e1 50 km\/h hra\u00f0a. Hlj\u00f3\u00f0mengun fr\u00e1 IONTRON b\u00edlnum er til samanbur\u00f0a um 60 dB sem er helmingi l\u00e6gra skynja\u00f0 hlj\u00f3\u00f0stig. A\u00f0 d\u00e6la steypu fylgir einnig hlj\u00f3\u00f0mengun en me\u00f0 rafmagnsd\u00e6lu er h\u00e6gt a\u00f0 l\u00e6kka hlj\u00f3\u00f0mengun um allt a\u00f0 50%. Rafkn\u00fain t\u00e6ki draga t\u00f6luvert \u00far hlj\u00f3\u00f0mengun og \u00fear me\u00f0 eykst vinnu\u00f6ryggi einnig.<\/p>\n
![\"\"](\"https:\/\/steypustodin.is\/wp-content\/uploads\/2023\/03\/steinsteypudagur-2023-Rafmagnsbilar-Kai3-21.png\")
Steypust\u00f6\u00f0in er spennt a\u00f0 f\u00e1 \u00feessi n\u00fdju t\u00e6ki og hefja ranns\u00f3knarvinnu um frammist\u00f6\u00f0u \u00feessara t\u00e6kja vi\u00f0 \u00edslenskar a\u00f0st\u00e6\u00f0ur.<\/p>\n![\"\"](\"https:\/\/steypustodin.is\/wp-content\/uploads\/2023\/03\/steinsteypudagur-2023-Rafmagnsbilar-Kai3-22.jpg\")
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Skrifa\u00f0 af Kai Westphal Framkv\u00e6mdastj\u00f3r<\/em>a steypuframlei\u00f0slu og dreifingar<\/em> hj\u00e1 Steypust\u00f6\u00f0in<\/em>ni. Greinin\u00a0 birtist \u00ed bla\u00f0i Steinsteypuf\u00e9lags \u00cdslands 2023.<\/em><\/p>\n \u00dea\u00f0 er nau\u00f0synlegt a\u00f0 steypui\u00f0na\u00f0urinn vinni markvisst a\u00f0 \u00fev\u00ed a\u00f0 draga \u00far kolefnisf\u00f3tspori me\u00f0an \u00e1 framkv\u00e6mdum stendur. Greinin birtist \u00ed bla\u00f0i Steinsteypuf\u00e9lagsins fyrir Steinsteypudaginn 2023 og Kai Westphal framkv\u00e6mdastj\u00f3ri steypuframlei\u00f0slu h\u00e9lt erindi \u00e1 deginum um Rafv\u00e6\u00f0ingu steypui\u00f0na\u00f0arins og kynnti n\u00fdjan 100% rafkn\u00fain steypub\u00edl sem er s\u00e1 fyrsti sinnar tegundar \u00e1 \u00cdslandi.<\/p>","protected":false},"author":4,"featured_media":20959,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_breakdance_hide_in_design_set":false,"_breakdance_tags":"","wds_primary_category":0,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-20957","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/steypustodin.is\/pl\/wp-json\/wp\/v2\/posts\/20957","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/steypustodin.is\/pl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/steypustodin.is\/pl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/steypustodin.is\/pl\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/steypustodin.is\/pl\/wp-json\/wp\/v2\/comments?post=20957"}],"version-history":[{"count":0,"href":"https:\/\/steypustodin.is\/pl\/wp-json\/wp\/v2\/posts\/20957\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steypustodin.is\/pl\/wp-json\/wp\/v2\/media\/20959"}],"wp:attachment":[{"href":"https:\/\/steypustodin.is\/pl\/wp-json\/wp\/v2\/media?parent=20957"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steypustodin.is\/pl\/wp-json\/wp\/v2\/categories?post=20957"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steypustodin.is\/pl\/wp-json\/wp\/v2\/tags?post=20957"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\"](\"https:\/\/steypustodin.is\/wp-content\/uploads\/2023\/03\/Kai-Steinsteypudagurinn.jpg\")
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