20.500.12556/RUL-188230 Vpliv tehnologije asfaltiranja s penjenim bitumnom na zmanjšanje emisij in porabe naravnih virov diplomsko delo Impact of foamed bitumen asphalt technology on reducing emissions and the consumption of natural resources Diploma proučuje vpliv tehnologije asfaltiranja s penjenim bitumnom na zmanjšanje emisij in porabe naravnih virov v primerjavi s klasično vročo asfaltno zmesjo, ki služi kot referenca. Naloga je kritičen pregled obstoječe literature, primerjava pa je izvedena po naslednjih treh parametrih: proizvodna temperatura, poraba naravnih virov in emisije. Ugotovili smo, da se topla asfaltna zmes s penjenim bitumnom proizvaja pri približno 30 % nižji temperaturi kot vroča zmes, brez poslabšanja mehanskih lastnosti. Predpostavka, da penjeni bitumen omogoča višje deleže recikliranega asfalta, se ni potrdila, saj nižja temperatura njegovo uporabo omejuje. Prednost penjenega bitumna je v tem, da enak delež recikliranega asfalta dosežemo že pri približno 110 °C namesto pri 165 °C, zato prihranek naravnih virov iz recikliranega asfalta in prihranek energije iz nižje temperature lahko seštejemo. Pri emisijah smo ugotovili, da znižanje temperature same po sebi zmanjša emisije ekvivalenta CO₂ le za 4 %, saj ostane bitumen kot glavni vir okoljskega vpliva nespremenjen. Odločilna spremenljivka je delež recikliranega asfalta, ki edini neposredno zmanjša porabo svežega bitumna. Bistvena okoljska prednost se doseže šele s kombinacijo obeh ukrepov. Glavne omejitve pregleda so industrijski izvor ključnih študij, pomanjkanje neodvisnih terenskih raziskav in nezdružljivost uporabljenih metod, prispevek naloge pa je povezava ugotovitev dveh ločenih študij v celotno oceno. This thesis examines the effect of foamed bitumen asphalt technology on reducing emissions and the consumption of natural resources compared to conventional hot mix asphalt, which serves as the reference. The thesis is a critical review of the existing literature in which warm mix asphalt produced with foamed bitumen is compared with conventional hot mix asphalt across three parameters: production temperature, consumption of natural resources, and emissions. We found that warm mix asphalt with foamed bitumen is produced at approximately 30 % lower temperature than hot mix asphalt, without any deterioration of its mechanical properties. The assumption that foamed bitumen enables higher proportions of reclaimed asphalt was not confirmed, as the lower temperature limits its use. The advantage of foamed bitumen lies in the fact that the same proportion of reclaimed asphalt can be achieved already at approximately 110 °C instead of 165 °C, so that the savings in natural resources from reclaimed asphalt and the savings in energy from the lower temperature can be added together. Regarding emissions, we found that lowering the temperature alone reduces CO₂- equivalent emissions by only 4 %, as bitumen, the main source of environmental impact, remains unchanged. The decisive variable is the proportion of reclaimed asphalt, which is the only measure that directly reduces the consumption of virgin bitumen. A substantial environmental advantage is achieved only through the combination of both measures. The main limitations of the review are the industrial origin of the key studies, the lack of independent field research, and the incompatibility of the methods used, while the contribution of the thesis is the connection of the findings of two separate studies into an overall assessment. diplomske naloge gradbeništvo penjeni bitumen topla asfaltna zmes recikliran asfalt emisije poraba naravnih virov proizvodna temperatura graduation thesis civil engineering foamed bitumen warm mix asphalt reclaimed asphalt pavement emissions natural resource consumption production temperature true false false [M. Zobec] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-09-19 08:45:47 2026-09-19 08:45:51 2026-09-21 13:00:18 0000-00-00 00:00:00 2026 0 Ljubljana 2026 Ljubljana 1 spletni vir (1 datoteka PDF (VIII, 35 str.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 625.752:502.131.1(043.2) 182683 291827971 22864.pdf 22864.pdf 1 BB30C96B8EFF1B535FA293250DEE739D 796b06e1c57f0e70c4031a6bbcd00146485e3132082a19fa2a254800ea9b520d b32059fb-b3f5-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=248259 Fakulteta za gradbeništvo in geodezijo 0 0 0