20.500.12556/RUL-119510 Spremljanje ACR reakcije skozi mikrostrukturno analizo betonov z dolomitnim agregatom Monitoring of ACR reactions through microstructural analysis of concree with dolomite aggregate. Beton je zgodovinsko gledano eden najbolj pomembnih in uporabljenih materialov in ravno zaradi tega je njegovo propadanje zelo velik problem. Za njegovo preprečitev pa je potrebno razumeti različne vzroke propadanja betona. Največji delež k propadanju betona gre prepisati naravnim in kemijskim dejavnikom. Alkalno-karbonatna reakcija spada med kemijske reakcije in s svojim delovanjem omogoča pospešeno propadanje betona. Glavni proces ACR reakcije je dedolomitizacija, ki je sicer neškodljiva, se pa zaradi nje zmanjša prostornina faz in s tem nudi možnost prodiranja ASR gela globje v beton. V diplomski nalogi so predstavljene tudi metode in aparature za določevanje mikrostrukture in različnih tipov faz v procesu propadanja betona zaradi ACR reakcije. Concrete is historically one of the most important and most used materials in the world. Because of this, its degradation is very big problem. However, to prevent the degradation of concrete, it is necessary to understand the various causes of concrete degradation. Most common reason for degradation of concrete are natural and chemical factors. The alkali-carbonate reaction is type of chemical reaction and its action enables accelerated degradation of the concrete. The main process of the ACR reaction is dedolomitization which is harmless but it reduces the volume of the phases and thus offers the possibility of penetrating the ASR gel deeper into the concrete. The degree paper also presents methods and analytical equipment for determining the microstructure and different types of phases in degradation of concrete due to the ACR reaction. beton propadanje ACR dedolomitizacija mikrostruktura concrete ACR dedolomitization microstructure true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2020-09-09 09:55:00 2020-09-09 09:55:04 2022-08-31 03:53:26 0000-00-00 00:00:00 2020 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 10661 29787651 Poljanc_Rok_-_Spremljanje_ACR_reakcije_skozi_mikrostrukturno_analizo_betonov_z_dolomitnim_agrega.pdf Poljanc_Rok_-_Spremljanje_ACR_reakcije_skozi_mikrostrukturno_analizo_betonov_z_dolomitnim_agrega.pdf 1 A73A924C9E3A3B5108886A15820548F0 f2a51b4c4ff19d61eb46c0a4f1829c07706ad2467e80e8409869ea6389e411ba d97f71aa-a1b9-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=134235 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0